mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-05 09:14:03 +00:00
- Make truss thread-aware.
Approved by: kib (mentor) MFC after: 2 weeks
This commit is contained in:
parent
54202ab3d1
commit
5695afded4
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=240562
@ -62,8 +62,6 @@ static const char rcsid[] =
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#include "syscall.h"
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#include "extern.h"
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static int cpid = -1;
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#include "syscalls.h"
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static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
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@ -77,30 +75,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
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* 'struct syscall' describes the system call; it may be NULL, however,
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* if we don't know about this particular system call yet.
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*/
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static struct freebsd_syscall {
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struct freebsd_syscall {
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struct syscall *sc;
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const char *name;
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int number;
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unsigned long *args;
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int nargs; /* number of arguments -- *not* number of words! */
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char **s_args; /* the printable arguments */
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} fsc;
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};
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static struct freebsd_syscall *
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alloc_fsc(void)
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{
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return (malloc(sizeof(struct freebsd_syscall)));
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}
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/* Clear up and free parts of the fsc structure. */
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static __inline void
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clear_fsc(void)
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static void
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free_fsc(struct freebsd_syscall *fsc)
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{
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int i;
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if (fsc.args)
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free(fsc.args);
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if (fsc.s_args) {
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for (i = 0; i < fsc.nargs; i++)
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if (fsc.s_args[i])
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free(fsc.s_args[i]);
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free(fsc.s_args);
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free(fsc->args);
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if (fsc->s_args) {
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for (i = 0; i < fsc->nargs; i++)
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free(fsc->s_args[i]);
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free(fsc->s_args);
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}
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memset(&fsc, 0, sizeof(fsc));
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free(fsc);
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}
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/*
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@ -115,14 +118,14 @@ amd64_syscall_entry(struct trussinfo *trussinfo, int nargs)
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{
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struct ptrace_io_desc iorequest;
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struct reg regs;
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struct freebsd_syscall *fsc;
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struct syscall *sc;
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lwpid_t tid;
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int i, reg, syscall_num;
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clear_fsc();
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tid = trussinfo->curthread->tid;
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cpid = trussinfo->curthread->tid;
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if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
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if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
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fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
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return;
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}
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@ -142,57 +145,60 @@ amd64_syscall_entry(struct trussinfo *trussinfo, int nargs)
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break;
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}
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fsc.number = syscall_num;
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fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
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fsc = alloc_fsc();
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if (fsc == NULL)
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return;
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fsc->number = syscall_num;
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fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
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NULL : syscallnames[syscall_num];
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if (!fsc.name) {
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if (!fsc->name) {
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fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
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syscall_num);
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}
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if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
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(strcmp(fsc.name, "fork") == 0 ||
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strcmp(fsc.name, "rfork") == 0||
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strcmp(fsc.name, "vfork") == 0))
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if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
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(strcmp(fsc->name, "fork") == 0 ||
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strcmp(fsc->name, "rfork") == 0 ||
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strcmp(fsc->name, "vfork") == 0))
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trussinfo->curthread->in_fork = 1;
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if (nargs == 0)
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return;
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fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
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fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
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for (i = 0; i < nargs && reg < 6; i++, reg++) {
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switch (reg) {
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case 0: fsc.args[i] = regs.r_rdi; break;
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case 1: fsc.args[i] = regs.r_rsi; break;
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case 2: fsc.args[i] = regs.r_rdx; break;
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case 3: fsc.args[i] = regs.r_rcx; break;
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case 4: fsc.args[i] = regs.r_r8; break;
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case 5: fsc.args[i] = regs.r_r9; break;
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case 0: fsc->args[i] = regs.r_rdi; break;
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case 1: fsc->args[i] = regs.r_rsi; break;
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case 2: fsc->args[i] = regs.r_rdx; break;
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case 3: fsc->args[i] = regs.r_rcx; break;
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case 4: fsc->args[i] = regs.r_r8; break;
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case 5: fsc->args[i] = regs.r_r9; break;
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}
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}
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if (nargs > i) {
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iorequest.piod_op = PIOD_READ_D;
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iorequest.piod_offs = (void *)(regs.r_rsp + sizeof(register_t));
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iorequest.piod_addr = &fsc.args[i];
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iorequest.piod_addr = &fsc->args[i];
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iorequest.piod_len = (nargs - i) * sizeof(register_t);
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ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
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ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
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if (iorequest.piod_len == 0)
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return;
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}
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sc = get_syscall(fsc.name);
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sc = get_syscall(fsc->name);
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if (sc)
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fsc.nargs = sc->nargs;
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fsc->nargs = sc->nargs;
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else {
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#if DEBUG
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fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
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"args to %d\n", fsc.name, nargs);
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"args to %d\n", fsc->name, nargs);
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#endif
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fsc.nargs = nargs;
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fsc->nargs = nargs;
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}
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fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
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fsc.sc = sc;
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fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
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fsc->sc = sc;
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/*
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* At this point, we set up the system call arguments.
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@ -202,19 +208,19 @@ amd64_syscall_entry(struct trussinfo *trussinfo, int nargs)
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* passed in *and* out, however.
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*/
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if (fsc.name) {
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if (fsc->name) {
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#if DEBUG
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fprintf(stderr, "syscall %s(", fsc.name);
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fprintf(stderr, "syscall %s(", fsc->name);
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#endif
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for (i = 0; i < fsc.nargs; i++) {
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for (i = 0; i < fsc->nargs; i++) {
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#if DEBUG
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fprintf(stderr, "0x%lx%s", sc ?
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fsc.args[sc->args[i].offset] : fsc.args[i],
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i < (fsc.nargs - 1) ? "," : "");
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fsc->args[sc->args[i].offset] : fsc->args[i],
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i < (fsc->nargs - 1) ? "," : "");
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#endif
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if (sc && !(sc->args[i].type & OUT)) {
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fsc.s_args[i] = print_arg(&sc->args[i],
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fsc.args, 0, trussinfo);
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fsc->s_args[i] = print_arg(&sc->args[i],
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fsc->args, 0, trussinfo);
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}
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}
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#if DEBUG
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@ -226,30 +232,29 @@ amd64_syscall_entry(struct trussinfo *trussinfo, int nargs)
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fprintf(trussinfo->outfile, "\n");
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#endif
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if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
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strcmp(fsc.name, "exit") == 0)) {
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if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
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strcmp(fsc->name, "exit") == 0)) {
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/*
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* XXX
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* This could be done in a more general
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* manner but it still wouldn't be very pretty.
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*/
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if (strcmp(fsc.name, "execve") == 0) {
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if (strcmp(fsc->name, "execve") == 0) {
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if ((trussinfo->flags & EXECVEARGS) == 0) {
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if (fsc.s_args[1]) {
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free(fsc.s_args[1]);
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fsc.s_args[1] = NULL;
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if (fsc->s_args[1]) {
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free(fsc->s_args[1]);
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fsc->s_args[1] = NULL;
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}
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}
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if ((trussinfo->flags & EXECVEENVS) == 0) {
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if (fsc.s_args[2]) {
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free(fsc.s_args[2]);
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fsc.s_args[2] = NULL;
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if (fsc->s_args[2]) {
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free(fsc->s_args[2]);
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fsc->s_args[2] = NULL;
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}
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}
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}
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}
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return;
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trussinfo->curthread->fsc = fsc;
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}
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/*
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@ -263,16 +268,18 @@ long
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amd64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
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{
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struct reg regs;
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struct freebsd_syscall *fsc;
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struct syscall *sc;
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lwpid_t tid;
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long retval;
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int errorp, i;
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if (fsc.name == NULL)
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if (trussinfo->curthread->fsc == NULL)
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return (-1);
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cpid = trussinfo->curthread->tid;
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tid = trussinfo->curthread->tid;
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if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
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if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
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fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
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return (-1);
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}
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@ -285,10 +292,11 @@ amd64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
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* stand some significant cleaning.
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*/
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sc = fsc.sc;
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fsc = trussinfo->curthread->fsc;
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sc = fsc->sc;
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if (!sc) {
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for (i = 0; i < fsc.nargs; i++)
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asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
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for (i = 0; i < fsc->nargs; i++)
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asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
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} else {
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/*
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* Here, we only look for arguments that have OUT masked in --
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@ -303,18 +311,18 @@ amd64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
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*/
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if (errorp) {
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asprintf(&temp, "0x%lx",
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fsc.args[sc->args[i].offset]);
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fsc->args[sc->args[i].offset]);
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} else {
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temp = print_arg(&sc->args[i],
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fsc.args, retval, trussinfo);
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fsc->args, retval, trussinfo);
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}
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fsc.s_args[i] = temp;
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fsc->s_args[i] = temp;
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}
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}
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}
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if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
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strcmp(fsc.name, "exit") == 0))
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if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
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strcmp(fsc->name, "exit") == 0))
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trussinfo->curthread->in_syscall = 1;
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/*
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@ -322,9 +330,9 @@ amd64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
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* but that complicates things considerably.
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*/
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print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
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retval, fsc.sc);
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clear_fsc();
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print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
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retval, fsc->sc);
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free_fsc(fsc);
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return (retval);
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}
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@ -62,8 +62,6 @@ static const char rcsid[] =
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#include "syscall.h"
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#include "extern.h"
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static int cpid = -1;
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#include "freebsd32_syscalls.h"
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static int nsyscalls = sizeof(freebsd32_syscallnames) /
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@ -78,7 +76,7 @@ static int nsyscalls = sizeof(freebsd32_syscallnames) /
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* 'struct syscall' describes the system call; it may be NULL, however,
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* if we don't know about this particular system call yet.
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*/
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static struct freebsd32_syscall {
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struct freebsd32_syscall {
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struct syscall *sc;
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const char *name;
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int number;
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@ -86,25 +84,29 @@ static struct freebsd32_syscall {
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unsigned int *args32;
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int nargs; /* number of arguments -- *not* number of words! */
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char **s_args; /* the printable arguments */
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} fsc;
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};
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static struct freebsd32_syscall *
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alloc_fsc(void)
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{
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return (malloc(sizeof(struct freebsd32_syscall)));
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}
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/* Clear up and free parts of the fsc structure. */
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static __inline void
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clear_fsc(void)
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static void
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free_fsc(struct freebsd32_syscall *fsc)
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{
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int i;
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if (fsc.args)
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free(fsc.args);
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if (fsc.args32)
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free(fsc.args32);
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if (fsc.s_args) {
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for (i = 0; i < fsc.nargs; i++)
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if (fsc.s_args[i])
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free(fsc.s_args[i]);
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free(fsc.s_args);
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free(fsc->args);
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free(fsc->args32);
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if (fsc->s_args) {
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for (i = 0; i < fsc->nargs; i++)
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free(fsc->s_args[i]);
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free(fsc->s_args);
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}
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memset(&fsc, 0, sizeof(fsc));
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free(fsc);
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}
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/*
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@ -119,15 +121,15 @@ amd64_fbsd32_syscall_entry(struct trussinfo *trussinfo, int nargs)
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{
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struct ptrace_io_desc iorequest;
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struct reg regs;
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struct freebsd32_syscall *fsc;
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struct syscall *sc;
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lwpid_t tid;
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unsigned long parm_offset;
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int i, syscall_num;
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clear_fsc();
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tid = trussinfo->curthread->tid;
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cpid = trussinfo->curthread->tid;
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if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
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if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
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fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
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return;
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}
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@ -141,60 +143,63 @@ amd64_fbsd32_syscall_entry(struct trussinfo *trussinfo, int nargs)
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syscall_num = regs.r_rax;
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switch (syscall_num) {
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case SYS_syscall:
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syscall_num = ptrace(PT_READ_D, cpid, (caddr_t)parm_offset, 0);
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syscall_num = ptrace(PT_READ_D, tid, (caddr_t)parm_offset, 0);
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parm_offset += sizeof(int);
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break;
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case SYS___syscall:
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syscall_num = ptrace(PT_READ_D, cpid, (caddr_t)parm_offset, 0);
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syscall_num = ptrace(PT_READ_D, tid, (caddr_t)parm_offset, 0);
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parm_offset += sizeof(quad_t);
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break;
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}
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fsc.number = syscall_num;
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fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
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fsc = alloc_fsc();
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if (fsc == NULL)
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return;
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fsc->number = syscall_num;
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fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
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NULL : freebsd32_syscallnames[syscall_num];
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if (!fsc.name) {
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if (!fsc->name) {
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fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
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syscall_num);
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}
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if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
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(strcmp(fsc.name, "fork") == 0 ||
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strcmp(fsc.name, "rfork") == 0||
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strcmp(fsc.name, "vfork") == 0))
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if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
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(strcmp(fsc->name, "fork") == 0 ||
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strcmp(fsc->name, "rfork") == 0 ||
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strcmp(fsc->name, "vfork") == 0))
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trussinfo->curthread->in_fork = 1;
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if (nargs == 0)
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return;
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fsc.args32 = malloc((1 + nargs) * sizeof(unsigned int));
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fsc->args32 = malloc((1 + nargs) * sizeof(unsigned int));
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iorequest.piod_op = PIOD_READ_D;
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iorequest.piod_offs = (void *)parm_offset;
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iorequest.piod_addr = fsc.args32;
|
||||
iorequest.piod_addr = fsc->args32;
|
||||
iorequest.piod_len = (1 + nargs) * sizeof(unsigned int);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
for (i = 0; i < nargs + 1; i++)
|
||||
fsc.args[i] = fsc.args32[i];
|
||||
fsc->args[i] = fsc->args32[i];
|
||||
|
||||
sc = NULL;
|
||||
if (fsc.name)
|
||||
sc = get_syscall(fsc.name);
|
||||
if (fsc->name)
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -204,19 +209,19 @@ amd64_fbsd32_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -228,30 +233,29 @@ amd64_fbsd32_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "freebsd32_execve") == 0||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "freebsd32_execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "freebsd32_execve") == 0) {
|
||||
if (strcmp(fsc->name, "freebsd32_execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -265,16 +269,18 @@ long
|
||||
amd64_fbsd32_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd32_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -287,10 +293,11 @@ amd64_fbsd32_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -305,18 +312,18 @@ amd64_fbsd32_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "freebsd32_execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "freebsd32_execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
@ -324,9 +331,9 @@ amd64_fbsd32_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -59,8 +59,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "linux32_syscalls.h"
|
||||
|
||||
static int nsyscalls =
|
||||
@ -75,28 +73,34 @@ static int nsyscalls =
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct linux_syscall {
|
||||
struct linux_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long args[5];
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct linux_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct linux_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct linux_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -110,31 +114,34 @@ void
|
||||
amd64_linux32_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct reg regs;
|
||||
struct linux_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
int i, syscall_num;
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
|
||||
syscall_num = regs.r_rax;
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : linux32_syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "linux_fork") == 0||
|
||||
strcmp(fsc.name, "linux_vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "linux_fork") == 0 ||
|
||||
strcmp(fsc->name, "linux_vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
@ -148,25 +155,25 @@ amd64_linux32_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* that have more than five arguments?
|
||||
*/
|
||||
|
||||
fsc.args[0] = regs.r_rbx;
|
||||
fsc.args[1] = regs.r_rcx;
|
||||
fsc.args[2] = regs.r_rdx;
|
||||
fsc.args[3] = regs.r_rsi;
|
||||
fsc.args[4] = regs.r_rdi;
|
||||
fsc->args[0] = regs.r_rbx;
|
||||
fsc->args[1] = regs.r_rcx;
|
||||
fsc->args[2] = regs.r_rdx;
|
||||
fsc->args[3] = regs.r_rsi;
|
||||
fsc->args[4] = regs.r_rdi;
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -176,19 +183,19 @@ amd64_linux32_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -200,30 +207,29 @@ amd64_linux32_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "linux_execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "linux_execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "linux_execve") == 0) {
|
||||
if (strcmp(fsc->name, "linux_execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -246,16 +252,18 @@ amd64_linux32_syscall_exit(struct trussinfo *trussinfo,
|
||||
int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct linux_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -268,10 +276,11 @@ amd64_linux32_syscall_exit(struct trussinfo *trussinfo,
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -286,12 +295,12 @@ amd64_linux32_syscall_exit(struct trussinfo *trussinfo,
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -308,13 +317,13 @@ amd64_linux32_syscall_exit(struct trussinfo *trussinfo,
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "linux_execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "linux_execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
errorp ? i : retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
errorp ? i : retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -62,8 +62,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "syscalls.h"
|
||||
|
||||
static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
@ -77,30 +75,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct freebsd_syscall {
|
||||
struct freebsd_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long *args;
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct freebsd_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct freebsd_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct freebsd_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.args)
|
||||
free(fsc.args);
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
free(fsc->args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -115,15 +118,15 @@ i386_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct ptrace_io_desc iorequest;
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
unsigned int parm_offset;
|
||||
int i, syscall_num;
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
@ -137,56 +140,59 @@ i386_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
syscall_num = regs.r_eax;
|
||||
switch (syscall_num) {
|
||||
case SYS_syscall:
|
||||
syscall_num = ptrace(PT_READ_D, cpid, (caddr_t)parm_offset, 0);
|
||||
syscall_num = ptrace(PT_READ_D, tid, (caddr_t)parm_offset, 0);
|
||||
parm_offset += sizeof(int);
|
||||
break;
|
||||
case SYS___syscall:
|
||||
syscall_num = ptrace(PT_READ_D, cpid, (caddr_t)parm_offset, 0);
|
||||
syscall_num = ptrace(PT_READ_D, tid, (caddr_t)parm_offset, 0);
|
||||
parm_offset += sizeof(quad_t);
|
||||
break;
|
||||
}
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "fork") == 0 ||
|
||||
strcmp(fsc.name, "rfork") == 0 ||
|
||||
strcmp(fsc.name, "vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "fork") == 0 ||
|
||||
strcmp(fsc->name, "rfork") == 0 ||
|
||||
strcmp(fsc->name, "vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
iorequest.piod_op = PIOD_READ_D;
|
||||
iorequest.piod_offs = (void *)parm_offset;
|
||||
iorequest.piod_addr = fsc.args;
|
||||
iorequest.piod_addr = fsc->args;
|
||||
iorequest.piod_len = (1 + nargs) * sizeof(unsigned long);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
|
||||
sc = NULL;
|
||||
if (fsc.name)
|
||||
sc = get_syscall(fsc.name);
|
||||
if (fsc->name)
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -196,19 +202,19 @@ i386_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -220,30 +226,29 @@ i386_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "execve") == 0) {
|
||||
if (strcmp(fsc->name, "execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -257,16 +262,18 @@ long
|
||||
i386_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -279,10 +286,11 @@ i386_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -297,18 +305,18 @@ i386_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
@ -316,9 +324,9 @@ i386_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -59,8 +59,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "linux_syscalls.h"
|
||||
|
||||
static int nsyscalls =
|
||||
@ -75,28 +73,34 @@ static int nsyscalls =
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct linux_syscall {
|
||||
struct linux_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long args[5];
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct linux_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct linux_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct linux_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -110,31 +114,34 @@ void
|
||||
i386_linux_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct reg regs;
|
||||
struct linux_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
int i, syscall_num;
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
|
||||
syscall_num = regs.r_eax;
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : linux_syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "linux_fork") == 0 ||
|
||||
strcmp(fsc.name, "linux_vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "linux_fork") == 0 ||
|
||||
strcmp(fsc->name, "linux_vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
@ -148,25 +155,25 @@ i386_linux_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* that have more than five arguments?
|
||||
*/
|
||||
|
||||
fsc.args[0] = regs.r_ebx;
|
||||
fsc.args[1] = regs.r_ecx;
|
||||
fsc.args[2] = regs.r_edx;
|
||||
fsc.args[3] = regs.r_esi;
|
||||
fsc.args[4] = regs.r_edi;
|
||||
fsc->args[0] = regs.r_ebx;
|
||||
fsc->args[1] = regs.r_ecx;
|
||||
fsc->args[2] = regs.r_edx;
|
||||
fsc->args[3] = regs.r_esi;
|
||||
fsc->args[4] = regs.r_edi;
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -176,19 +183,19 @@ i386_linux_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -200,30 +207,29 @@ i386_linux_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "linux_execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "linux_execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "linux_execve") == 0) {
|
||||
if (strcmp(fsc->name, "linux_execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -245,16 +251,18 @@ long
|
||||
i386_linux_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct linux_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -267,10 +275,11 @@ i386_linux_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -285,12 +294,12 @@ i386_linux_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -307,13 +316,13 @@ i386_linux_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "linux_execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "linux_execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
errorp ? i : retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
errorp ? i : retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -61,8 +61,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "syscalls.h"
|
||||
|
||||
static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
@ -76,30 +74,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct freebsd_syscall {
|
||||
struct freebsd_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long *args;
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct freebsd_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct freebsd_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct freebsd_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.args)
|
||||
free(fsc.args);
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
free(fsc->args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -113,15 +116,15 @@ void
|
||||
ia64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
unsigned long *parm_offset;
|
||||
lwpid_t tid;
|
||||
int i, syscall_num;
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
@ -136,39 +139,42 @@ ia64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
if (syscall_num == SYS_syscall || syscall_num == SYS___syscall)
|
||||
syscall_num = (int)*parm_offset++;
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "fork") == 0 ||
|
||||
strcmp(fsc.name, "rfork") == 0 ||
|
||||
strcmp(fsc.name, "vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "fork") == 0 ||
|
||||
strcmp(fsc->name, "rfork") == 0 ||
|
||||
strcmp(fsc->name, "vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
memcpy(fsc.args, parm_offset, nargs * sizeof(long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
memcpy(fsc->args, parm_offset, nargs * sizeof(long));
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -178,19 +184,19 @@ ia64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -202,30 +208,29 @@ ia64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "execve") == 0) {
|
||||
if (strcmp(fsc->name, "execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -239,16 +244,18 @@ long
|
||||
ia64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -261,10 +268,11 @@ ia64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -279,27 +287,28 @@ ia64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
* It would probably be a good idea to merge the error handling,
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -163,6 +163,7 @@ strsig(int sig)
|
||||
int
|
||||
main(int ac, char **av)
|
||||
{
|
||||
struct timespec timediff;
|
||||
struct sigaction sa;
|
||||
struct ex_types *funcs;
|
||||
struct trussinfo *trussinfo;
|
||||
@ -170,7 +171,7 @@ main(int ac, char **av)
|
||||
char *signame;
|
||||
char **command;
|
||||
pid_t childpid;
|
||||
int c, i, initial_open, status;
|
||||
int c, initial_open, status;
|
||||
|
||||
fname = NULL;
|
||||
initial_open = 1;
|
||||
@ -286,18 +287,17 @@ main(int ac, char **av)
|
||||
clock_gettime(CLOCK_REALTIME, &trussinfo->start_time);
|
||||
|
||||
do {
|
||||
struct timespec timediff;
|
||||
waitevent(trussinfo);
|
||||
|
||||
switch (i = trussinfo->pr_why) {
|
||||
switch (trussinfo->pr_why) {
|
||||
case S_SCE:
|
||||
funcs->enter_syscall(trussinfo, MAXARGS);
|
||||
clock_gettime(CLOCK_REALTIME,
|
||||
&trussinfo->before);
|
||||
&trussinfo->curthread->before);
|
||||
break;
|
||||
case S_SCX:
|
||||
clock_gettime(CLOCK_REALTIME,
|
||||
&trussinfo->after);
|
||||
&trussinfo->curthread->after);
|
||||
|
||||
if (trussinfo->curthread->in_fork &&
|
||||
(trussinfo->flags & FOLLOWFORKS)) {
|
||||
@ -326,15 +326,15 @@ main(int ac, char **av)
|
||||
fprintf(trussinfo->outfile, "%5d: ",
|
||||
trussinfo->pid);
|
||||
if (trussinfo->flags & ABSOLUTETIMESTAMPS) {
|
||||
timespecsubt(&trussinfo->after,
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->start_time, &timediff);
|
||||
fprintf(trussinfo->outfile, "%ld.%09ld ",
|
||||
(long)timediff.tv_sec,
|
||||
timediff.tv_nsec);
|
||||
}
|
||||
if (trussinfo->flags & RELATIVETIMESTAMPS) {
|
||||
timespecsubt(&trussinfo->after,
|
||||
&trussinfo->before, &timediff);
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->curthread->before, &timediff);
|
||||
fprintf(trussinfo->outfile, "%ld.%09ld ",
|
||||
(long)timediff.tv_sec,
|
||||
timediff.tv_nsec);
|
||||
@ -352,15 +352,15 @@ main(int ac, char **av)
|
||||
fprintf(trussinfo->outfile, "%5d: ",
|
||||
trussinfo->pid);
|
||||
if (trussinfo->flags & ABSOLUTETIMESTAMPS) {
|
||||
timespecsubt(&trussinfo->after,
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->start_time, &timediff);
|
||||
fprintf(trussinfo->outfile, "%ld.%09ld ",
|
||||
(long)timediff.tv_sec,
|
||||
timediff.tv_nsec);
|
||||
}
|
||||
if (trussinfo->flags & RELATIVETIMESTAMPS) {
|
||||
timespecsubt(&trussinfo->after,
|
||||
&trussinfo->before, &timediff);
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->curthread->before, &timediff);
|
||||
fprintf(trussinfo->outfile, "%ld.%09ld ",
|
||||
(long)timediff.tv_sec, timediff.tv_nsec);
|
||||
}
|
||||
|
@ -66,8 +66,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "syscalls.h"
|
||||
|
||||
static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
@ -81,30 +79,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct freebsd_syscall {
|
||||
struct freebsd_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long *args;
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct freebsd_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct freebsd_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct freebsd_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.args)
|
||||
free(fsc.args);
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
free(fsc->args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -119,15 +122,15 @@ mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct ptrace_io_desc iorequest;
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
int i, syscall_num;
|
||||
int indir; /* indirect system call */
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
@ -139,30 +142,33 @@ mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
syscall_num = regs.r_regs[A0];
|
||||
}
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "fork") == 0 ||
|
||||
strcmp(fsc.name, "rfork") == 0 ||
|
||||
strcmp(fsc.name, "vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "fork") == 0 ||
|
||||
strcmp(fsc->name, "rfork") == 0 ||
|
||||
strcmp(fsc->name, "vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
#if 0 // XXX
|
||||
iorequest.piod_op = PIOD_READ_D;
|
||||
iorequest.piod_offs = (void *)parm_offset;
|
||||
iorequest.piod_addr = fsc.args;
|
||||
iorequest.piod_addr = fsc->args;
|
||||
iorequest.piod_len = (1 + nargs) * sizeof(unsigned long);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
#else
|
||||
@ -192,35 +198,35 @@ mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
iorequest.piod_op = PIOD_READ_D;
|
||||
iorequest.piod_offs = (void *)(regs.r_regs[SP] +
|
||||
4 * sizeof(uint32_t));
|
||||
iorequest.piod_addr = &fsc.args[4];
|
||||
iorequest.piod_len = (nargs - 4) * sizeof(fsc.args[0]);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
iorequest.piod_addr = &fsc->args[4];
|
||||
iorequest.piod_len = (nargs - 4) * sizeof(fsc->args[0]);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
case 4: fsc.args[3] = regs.r_regs[A3];
|
||||
case 3: fsc.args[2] = regs.r_regs[A2];
|
||||
case 2: fsc.args[1] = regs.r_regs[A1];
|
||||
case 1: fsc.args[0] = regs.r_regs[A0];
|
||||
case 4: fsc->args[3] = regs.r_regs[A3];
|
||||
case 3: fsc->args[2] = regs.r_regs[A2];
|
||||
case 2: fsc->args[1] = regs.r_regs[A1];
|
||||
case 1: fsc->args[0] = regs.r_regs[A0];
|
||||
case 0: break;
|
||||
}
|
||||
if (indir) {
|
||||
memmove(&fsc.args[0], &fsc.args[1],
|
||||
(nargs - 1) * sizeof(fsc.args[0]));
|
||||
memmove(&fsc->args[0], &fsc->args[1],
|
||||
(nargs - 1) * sizeof(fsc->args[0]));
|
||||
}
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -230,19 +236,19 @@ mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -254,30 +260,29 @@ mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "execve") == 0) {
|
||||
if (strcmp(fsc->name, "execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -291,16 +296,18 @@ long
|
||||
mips_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -313,10 +320,11 @@ mips_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -331,18 +339,18 @@ mips_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
@ -350,9 +358,9 @@ mips_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -61,8 +61,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#ifdef __powerpc64__ /* 32-bit compatibility */
|
||||
#include "freebsd32_syscalls.h"
|
||||
#define syscallnames freebsd32_syscallnames
|
||||
@ -81,30 +79,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct freebsd_syscall {
|
||||
struct freebsd_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long *args;
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct freebsd_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct freebsd_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct freebsd_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.args)
|
||||
free(fsc.args);
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
free(fsc->args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -119,18 +122,18 @@ powerpc_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct ptrace_io_desc iorequest;
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
void *args;
|
||||
lwpid_t tid;
|
||||
int i, regargs, syscall_num;
|
||||
|
||||
/* Account for a 64-bit argument with corresponding alignment. */
|
||||
nargs += 2;
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
@ -153,51 +156,54 @@ powerpc_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
syscall_num = regs.fixreg[4];
|
||||
}
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "fork") == 0 ||
|
||||
strcmp(fsc.name, "rfork") == 0 ||
|
||||
strcmp(fsc.name, "vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "fork") == 0 ||
|
||||
strcmp(fsc->name, "rfork") == 0 ||
|
||||
strcmp(fsc->name, "vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
|
||||
if (nargs > regargs) {
|
||||
memmove(&fsc.args[0], args, regargs * sizeof(fsc.args[0]));
|
||||
memmove(&fsc->args[0], args, regargs * sizeof(fsc->args[0]));
|
||||
|
||||
iorequest.piod_op = PIOD_READ_D;
|
||||
iorequest.piod_offs = (void *)(regs.fixreg[1] + 8);
|
||||
iorequest.piod_addr = &fsc.args[regargs];
|
||||
iorequest.piod_len = (nargs - regargs) * sizeof(fsc.args[0]);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
iorequest.piod_addr = &fsc->args[regargs];
|
||||
iorequest.piod_len = (nargs - regargs) * sizeof(fsc->args[0]);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
} else
|
||||
memmove(&fsc.args[0], args, nargs * sizeof(fsc.args[0]));
|
||||
memmove(&fsc->args[0], args, nargs * sizeof(fsc->args[0]));
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -207,19 +213,19 @@ powerpc_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -231,30 +237,29 @@ powerpc_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "execve") == 0) {
|
||||
if (strcmp(fsc->name, "execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -268,16 +273,18 @@ long
|
||||
powerpc_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -290,10 +297,11 @@ powerpc_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* On 32-bit big-endian, the low word of a 64-bit return is
|
||||
@ -316,18 +324,18 @@ powerpc_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
@ -335,9 +343,9 @@ powerpc_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -61,8 +61,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "syscalls.h"
|
||||
|
||||
static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
@ -76,30 +74,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct freebsd_syscall {
|
||||
struct freebsd_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long *args;
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct freebsd_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct freebsd_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct freebsd_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.args)
|
||||
free(fsc.args);
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
free(fsc->args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -114,15 +117,15 @@ powerpc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct ptrace_io_desc iorequest;
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
void *args;
|
||||
lwpid_t tid;
|
||||
int i, regargs, syscall_num;
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
@ -141,51 +144,54 @@ powerpc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
syscall_num = regs.fixreg[3];
|
||||
}
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "fork") == 0 ||
|
||||
strcmp(fsc.name, "rfork") == 0 ||
|
||||
strcmp(fsc.name, "vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "fork") == 0 ||
|
||||
strcmp(fsc->name, "rfork") == 0 ||
|
||||
strcmp(fsc->name, "vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
|
||||
if (nargs > regargs) {
|
||||
memmove(&fsc.args[0], args, regargs * sizeof(fsc.args[0]));
|
||||
memmove(&fsc->args[0], args, regargs * sizeof(fsc->args[0]));
|
||||
|
||||
iorequest.piod_op = PIOD_READ_D;
|
||||
iorequest.piod_offs = (void *)(regs.fixreg[1] + 48);
|
||||
iorequest.piod_addr = &fsc.args[regargs];
|
||||
iorequest.piod_len = (nargs - regargs) * sizeof(fsc.args[0]);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
iorequest.piod_addr = &fsc->args[regargs];
|
||||
iorequest.piod_len = (nargs - regargs) * sizeof(fsc->args[0]);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
} else
|
||||
memmove(&fsc.args[0], args, nargs * sizeof(fsc.args[0]));
|
||||
memmove(&fsc->args[0], args, nargs * sizeof(fsc->args[0]));
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -195,19 +201,19 @@ powerpc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -219,30 +225,29 @@ powerpc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "execve") == 0) {
|
||||
if (strcmp(fsc->name, "execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -256,16 +261,18 @@ long
|
||||
powerpc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -278,10 +285,11 @@ powerpc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -296,18 +304,18 @@ powerpc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
@ -315,9 +323,9 @@ powerpc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -161,12 +161,10 @@ find_thread(struct trussinfo *info, lwpid_t lwpid)
|
||||
}
|
||||
}
|
||||
|
||||
np = (struct threadinfo *)malloc(sizeof(struct threadinfo));
|
||||
np = (struct threadinfo *)calloc(1, sizeof(struct threadinfo));
|
||||
if (np == NULL)
|
||||
errx(1, "malloc() failed");
|
||||
err(1, "calloc() failed");
|
||||
np->tid = lwpid;
|
||||
np->in_fork = 0;
|
||||
np->in_syscall = 0;
|
||||
SLIST_INSERT_HEAD(&info->threadlist, np, entries);
|
||||
info->curthread = np;
|
||||
}
|
||||
|
@ -67,8 +67,6 @@ static const char rcsid[] =
|
||||
#include "syscall.h"
|
||||
#include "extern.h"
|
||||
|
||||
static int cpid = -1;
|
||||
|
||||
#include "syscalls.h"
|
||||
|
||||
static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
@ -82,30 +80,35 @@ static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]);
|
||||
* 'struct syscall' describes the system call; it may be NULL, however,
|
||||
* if we don't know about this particular system call yet.
|
||||
*/
|
||||
static struct freebsd_syscall {
|
||||
struct freebsd_syscall {
|
||||
struct syscall *sc;
|
||||
const char *name;
|
||||
int number;
|
||||
unsigned long *args;
|
||||
int nargs; /* number of arguments -- *not* number of words! */
|
||||
char **s_args; /* the printable arguments */
|
||||
} fsc;
|
||||
};
|
||||
|
||||
static struct freebsd_syscall *
|
||||
alloc_fsc(void)
|
||||
{
|
||||
|
||||
return (malloc(sizeof(struct freebsd_syscall)));
|
||||
}
|
||||
|
||||
/* Clear up and free parts of the fsc structure. */
|
||||
static __inline void
|
||||
clear_fsc(void)
|
||||
static void
|
||||
free_fsc(struct freebsd_syscall *fsc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (fsc.args)
|
||||
free(fsc.args);
|
||||
if (fsc.s_args) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
if (fsc.s_args[i])
|
||||
free(fsc.s_args[i]);
|
||||
free(fsc.s_args);
|
||||
free(fsc->args);
|
||||
if (fsc->s_args) {
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
free(fsc->s_args[i]);
|
||||
free(fsc->s_args);
|
||||
}
|
||||
memset(&fsc, 0, sizeof(fsc));
|
||||
free(fsc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -120,15 +123,15 @@ sparc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
{
|
||||
struct ptrace_io_desc iorequest;
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
int i, syscall_num;
|
||||
int indir; /* indirect system call */
|
||||
|
||||
clear_fsc();
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
|
||||
return;
|
||||
}
|
||||
@ -145,24 +148,27 @@ sparc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
syscall_num = regs.r_out[0];
|
||||
}
|
||||
|
||||
fsc.number = syscall_num;
|
||||
fsc.name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
fsc = alloc_fsc();
|
||||
if (fsc == NULL)
|
||||
return;
|
||||
fsc->number = syscall_num;
|
||||
fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
|
||||
NULL : syscallnames[syscall_num];
|
||||
if (!fsc.name) {
|
||||
if (!fsc->name) {
|
||||
fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
|
||||
syscall_num);
|
||||
}
|
||||
|
||||
if (fsc.name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc.name, "fork") == 0 ||
|
||||
strcmp(fsc.name, "rfork") == 0 ||
|
||||
strcmp(fsc.name, "vfork") == 0))
|
||||
if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
|
||||
(strcmp(fsc->name, "fork") == 0 ||
|
||||
strcmp(fsc->name, "rfork") == 0 ||
|
||||
strcmp(fsc->name, "vfork") == 0))
|
||||
trussinfo->curthread->in_fork = 1;
|
||||
|
||||
if (nargs == 0)
|
||||
return;
|
||||
|
||||
fsc.args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
|
||||
switch (nargs) {
|
||||
default:
|
||||
/*
|
||||
@ -183,38 +189,38 @@ sparc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
iorequest.piod_op = PIOD_READ_D;
|
||||
iorequest.piod_offs = (void *)(regs.r_out[6] + SPOFF +
|
||||
offsetof(struct frame, fr_pad[6]));
|
||||
iorequest.piod_addr = &fsc.args[6];
|
||||
iorequest.piod_len = (nargs - 6) * sizeof(fsc.args[0]);
|
||||
ptrace(PT_IO, cpid, (caddr_t)&iorequest, 0);
|
||||
iorequest.piod_addr = &fsc->args[6];
|
||||
iorequest.piod_len = (nargs - 6) * sizeof(fsc->args[0]);
|
||||
ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
|
||||
if (iorequest.piod_len == 0)
|
||||
return;
|
||||
case 6: fsc.args[5] = regs.r_out[5];
|
||||
case 5: fsc.args[4] = regs.r_out[4];
|
||||
case 4: fsc.args[3] = regs.r_out[3];
|
||||
case 3: fsc.args[2] = regs.r_out[2];
|
||||
case 2: fsc.args[1] = regs.r_out[1];
|
||||
case 1: fsc.args[0] = regs.r_out[0];
|
||||
case 6: fsc->args[5] = regs.r_out[5];
|
||||
case 5: fsc->args[4] = regs.r_out[4];
|
||||
case 4: fsc->args[3] = regs.r_out[3];
|
||||
case 3: fsc->args[2] = regs.r_out[2];
|
||||
case 2: fsc->args[1] = regs.r_out[1];
|
||||
case 1: fsc->args[0] = regs.r_out[0];
|
||||
case 0:
|
||||
break;
|
||||
}
|
||||
|
||||
if (indir)
|
||||
memmove(&fsc.args[0], &fsc.args[1], (nargs - 1) *
|
||||
sizeof(fsc.args[0]));
|
||||
memmove(&fsc->args[0], &fsc->args[1], (nargs - 1) *
|
||||
sizeof(fsc->args[0]));
|
||||
|
||||
sc = get_syscall(fsc.name);
|
||||
sc = get_syscall(fsc->name);
|
||||
if (sc)
|
||||
fsc.nargs = sc->nargs;
|
||||
fsc->nargs = sc->nargs;
|
||||
else {
|
||||
#if DEBUG
|
||||
fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
|
||||
"args to %d\n", fsc.name, nargs);
|
||||
"args to %d\n", fsc->name, nargs);
|
||||
#endif
|
||||
fsc.nargs = nargs;
|
||||
fsc->nargs = nargs;
|
||||
}
|
||||
|
||||
fsc.s_args = calloc(1, (1 + fsc.nargs) * sizeof(char *));
|
||||
fsc.sc = sc;
|
||||
fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
|
||||
fsc->sc = sc;
|
||||
|
||||
/*
|
||||
* At this point, we set up the system call arguments.
|
||||
@ -224,19 +230,19 @@ sparc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
* passed in *and* out, however.
|
||||
*/
|
||||
|
||||
if (fsc.name) {
|
||||
if (fsc->name) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "syscall %s(", fsc.name);
|
||||
fprintf(stderr, "syscall %s(", fsc->name);
|
||||
#endif
|
||||
for (i = 0; i < fsc.nargs; i++) {
|
||||
for (i = 0; i < fsc->nargs; i++) {
|
||||
#if DEBUG
|
||||
fprintf(stderr, "0x%x%s", sc ?
|
||||
fsc.args[sc->args[i].offset] : fsc.args[i],
|
||||
i < (fsc.nargs - 1) ? "," : "");
|
||||
fsc->args[sc->args[i].offset] : fsc->args[i],
|
||||
i < (fsc->nargs - 1) ? "," : "");
|
||||
#endif
|
||||
if (sc && !(sc->args[i].type & OUT)) {
|
||||
fsc.s_args[i] = print_arg(&sc->args[i],
|
||||
fsc.args, 0, trussinfo);
|
||||
fsc->s_args[i] = print_arg(&sc->args[i],
|
||||
fsc->args, 0, trussinfo);
|
||||
}
|
||||
}
|
||||
#if DEBUG
|
||||
@ -248,30 +254,29 @@ sparc64_syscall_entry(struct trussinfo *trussinfo, int nargs)
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
#endif
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0)) {
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0)) {
|
||||
/*
|
||||
* XXX
|
||||
* This could be done in a more general
|
||||
* manner but it still wouldn't be very pretty.
|
||||
*/
|
||||
if (strcmp(fsc.name, "execve") == 0) {
|
||||
if (strcmp(fsc->name, "execve") == 0) {
|
||||
if ((trussinfo->flags & EXECVEARGS) == 0) {
|
||||
if (fsc.s_args[1]) {
|
||||
free(fsc.s_args[1]);
|
||||
fsc.s_args[1] = NULL;
|
||||
if (fsc->s_args[1]) {
|
||||
free(fsc->s_args[1]);
|
||||
fsc->s_args[1] = NULL;
|
||||
}
|
||||
}
|
||||
if ((trussinfo->flags & EXECVEENVS) == 0) {
|
||||
if (fsc.s_args[2]) {
|
||||
free(fsc.s_args[2]);
|
||||
fsc.s_args[2] = NULL;
|
||||
if (fsc->s_args[2]) {
|
||||
free(fsc->s_args[2]);
|
||||
fsc->s_args[2] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
trussinfo->curthread->fsc = fsc;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -285,16 +290,18 @@ long
|
||||
sparc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
{
|
||||
struct reg regs;
|
||||
struct freebsd_syscall *fsc;
|
||||
struct syscall *sc;
|
||||
lwpid_t tid;
|
||||
long retval;
|
||||
int errorp, i;
|
||||
|
||||
if (fsc.name == NULL)
|
||||
if (trussinfo->curthread->fsc == NULL)
|
||||
return (-1);
|
||||
|
||||
cpid = trussinfo->curthread->tid;
|
||||
tid = trussinfo->curthread->tid;
|
||||
|
||||
if (ptrace(PT_GETREGS, cpid, (caddr_t)®s, 0) < 0) {
|
||||
if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
|
||||
fprintf(trussinfo->outfile, "\n");
|
||||
return (-1);
|
||||
}
|
||||
@ -307,10 +314,11 @@ sparc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* stand some significant cleaning.
|
||||
*/
|
||||
|
||||
sc = fsc.sc;
|
||||
fsc = trussinfo->curthread->fsc;
|
||||
sc = fsc->sc;
|
||||
if (!sc) {
|
||||
for (i = 0; i < fsc.nargs; i++)
|
||||
asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]);
|
||||
for (i = 0; i < fsc->nargs; i++)
|
||||
asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
|
||||
} else {
|
||||
/*
|
||||
* Here, we only look for arguments that have OUT masked in --
|
||||
@ -325,18 +333,18 @@ sparc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
*/
|
||||
if (errorp) {
|
||||
asprintf(&temp, "0x%lx",
|
||||
fsc.args[sc->args[i].offset]);
|
||||
fsc->args[sc->args[i].offset]);
|
||||
} else {
|
||||
temp = print_arg(&sc->args[i],
|
||||
fsc.args, retval, trussinfo);
|
||||
fsc->args, retval, trussinfo);
|
||||
}
|
||||
fsc.s_args[i] = temp;
|
||||
fsc->s_args[i] = temp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (fsc.name != NULL && (strcmp(fsc.name, "execve") == 0 ||
|
||||
strcmp(fsc.name, "exit") == 0))
|
||||
if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
|
||||
strcmp(fsc->name, "exit") == 0))
|
||||
trussinfo->curthread->in_syscall = 1;
|
||||
|
||||
/*
|
||||
@ -344,9 +352,9 @@ sparc64_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
|
||||
* but that complicates things considerably.
|
||||
*/
|
||||
|
||||
print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp,
|
||||
retval, fsc.sc);
|
||||
clear_fsc();
|
||||
print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
|
||||
retval, fsc->sc);
|
||||
free_fsc(fsc);
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
@ -1120,20 +1120,21 @@ print_syscall(struct trussinfo *trussinfo, const char *name, int nargs,
|
||||
if (trussinfo->flags & FOLLOWFORKS)
|
||||
len += fprintf(trussinfo->outfile, "%5d: ", trussinfo->pid);
|
||||
|
||||
if (name != NULL && (strcmp(name, "execve") == 0||
|
||||
if (name != NULL && (strcmp(name, "execve") == 0 ||
|
||||
strcmp(name, "exit") == 0)) {
|
||||
clock_gettime(CLOCK_REALTIME, &trussinfo->after);
|
||||
clock_gettime(CLOCK_REALTIME, &trussinfo->curthread->after);
|
||||
}
|
||||
|
||||
if (trussinfo->flags & ABSOLUTETIMESTAMPS) {
|
||||
timespecsubt(&trussinfo->after, &trussinfo->start_time,
|
||||
&timediff);
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->start_time, &timediff);
|
||||
len += fprintf(trussinfo->outfile, "%ld.%09ld ",
|
||||
(long)timediff.tv_sec, timediff.tv_nsec);
|
||||
}
|
||||
|
||||
if (trussinfo->flags & RELATIVETIMESTAMPS) {
|
||||
timespecsubt(&trussinfo->after, &trussinfo->before, &timediff);
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->curthread->before, &timediff);
|
||||
len += fprintf(trussinfo->outfile, "%ld.%09ld ",
|
||||
(long)timediff.tv_sec, timediff.tv_nsec);
|
||||
}
|
||||
@ -1163,8 +1164,9 @@ print_syscall_ret(struct trussinfo *trussinfo, const char *name, int nargs,
|
||||
if (trussinfo->flags & COUNTONLY) {
|
||||
if (!sc)
|
||||
return;
|
||||
clock_gettime(CLOCK_REALTIME, &trussinfo->after);
|
||||
timespecsubt(&trussinfo->after, &trussinfo->before, &timediff);
|
||||
clock_gettime(CLOCK_REALTIME, &trussinfo->curthread->after);
|
||||
timespecsubt(&trussinfo->curthread->after,
|
||||
&trussinfo->curthread->before, &timediff);
|
||||
timespecadd(&sc->time, &timediff, &sc->time);
|
||||
sc->ncalls++;
|
||||
if (errorp)
|
||||
|
@ -41,6 +41,9 @@ struct threadinfo
|
||||
lwpid_t tid;
|
||||
int in_syscall;
|
||||
int in_fork;
|
||||
void *fsc;
|
||||
struct timespec before;
|
||||
struct timespec after;
|
||||
};
|
||||
|
||||
struct trussinfo
|
||||
@ -53,8 +56,6 @@ struct trussinfo
|
||||
FILE *outfile;
|
||||
|
||||
struct timespec start_time;
|
||||
struct timespec before;
|
||||
struct timespec after;
|
||||
|
||||
struct threadinfo *curthread;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user