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3c1e38ea6e
i386, ia64 and sparc64. Add stubs for alpha, amd64, ia64 and sparc64 for libpthread. Restructure the source files to avoid unnecessary use of subdirectories that also force us to use non-portable compilation flags to deal with the uncommon compilation requirements (building archive libraries for linkage into a shared library). The libpthread support has been copied from the original local and cleaned-up to make them WARNS=2 clean. that also force us to use non-portable compilation flags to deal with the uncommon compilation requirements (building archive libraries for linkage into a shared library). The libpthread support has been copied from the original local and cleaned-up to make them WARNS=2 clean. Tested on: amd64, i386, ia64
329 lines
8.2 KiB
C
329 lines
8.2 KiB
C
/*
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* Copyright (c) 2004 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <machine/setjmp.h>
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#include <proc_service.h>
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#include <stdlib.h>
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#include <string.h>
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#include <thread_db.h>
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#include "thread_db_int.h"
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void libc_r_md_getfpregs(jmp_buf jb, prfpregset_t *);
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void libc_r_md_getgregs(jmp_buf jb, prgregset_t);
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struct td_thragent {
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TD_THRAGENT_FIELDS;
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struct ps_prochandle *ta_ph;
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psaddr_t ta_thread_initial;
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psaddr_t ta_thread_list;
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psaddr_t ta_thread_run;
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int ta_ofs_ctx;
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int ta_ofs_next;
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int ta_ofs_uniqueid;
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};
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static td_err_e
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libc_r_db_init()
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{
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return (TD_OK);
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}
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static td_err_e
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libc_r_db_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *ev)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_delete(td_thragent_t *ta)
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{
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free(ta);
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return (TD_OK);
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}
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static td_err_e
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libc_r_db_ta_event_addr(const td_thragent_t *ta, td_thr_events_e ev,
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td_notify_t *n)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_event_getmsg(const td_thragent_t *ta, td_event_msg_t *msg)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_map_id2thr(const td_thragent_t *ta, thread_t tid,
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td_thrhandle_t *th)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_map_lwp2thr(const td_thragent_t *ta, lwpid_t lwpid,
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td_thrhandle_t *th)
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{
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psaddr_t addr;
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ps_err_e err;
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th->th_ta = ta;
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err = ps_pread(ta->ta_ph, ta->ta_thread_initial, &addr, sizeof(addr));
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if (err != PS_OK)
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return (TD_ERR);
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if (addr == NULL)
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return (TD_NOLWP);
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err = ps_pread(ta->ta_ph, ta->ta_thread_run, &th->th_thread,
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sizeof(psaddr_t));
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return ((err == PS_OK) ? TD_OK : TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_new(struct ps_prochandle *ph, td_thragent_t **ta_p)
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{
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td_thragent_t *ta;
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psaddr_t addr;
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ps_err_e err;
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ta = malloc(sizeof(td_thragent_t));
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if (ta == NULL)
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return (TD_MALLOC);
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ta->ta_ph = ph;
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err = ps_pglobal_lookup(ph, NULL, "_thread_initial",
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&ta->ta_thread_initial);
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_list", &ta->ta_thread_list);
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_run", &ta->ta_thread_run);
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_ctx_offset", &addr);
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if (err != PS_OK)
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goto fail;
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err = ps_pread(ph, addr, &ta->ta_ofs_ctx, sizeof(int));
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_next_offset", &addr);
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if (err != PS_OK)
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goto fail;
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err = ps_pread(ph, addr, &ta->ta_ofs_next, sizeof(int));
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_uniqueid_offset", &addr);
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if (err != PS_OK)
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goto fail;
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err = ps_pread(ph, addr, &ta->ta_ofs_uniqueid, sizeof(int));
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if (err != PS_OK)
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goto fail;
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*ta_p = ta;
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return (TD_OK);
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fail:
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free(ta);
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*ta_p = NULL;
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_set_event(const td_thragent_t *ta, td_thr_events_t *ev)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_ta_thr_iter(const td_thragent_t *ta, td_thr_iter_f *cb, void *data,
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td_thr_state_e state, int pri, sigset_t *mask, unsigned int flags)
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{
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td_thrhandle_t th;
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psaddr_t addr;
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ps_err_e err;
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th.th_ta = ta;
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err = ps_pread(ta->ta_ph, ta->ta_thread_list, &th.th_thread,
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sizeof(th.th_thread));
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if (err != PS_OK)
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return (TD_ERR);
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while (th.th_thread != NULL) {
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if (cb(&th, data) != 0)
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return (TD_OK);
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addr = (psaddr_t)((uintptr_t)th.th_thread + ta->ta_ofs_next);
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err = ps_pread(ta->ta_ph, addr, &th.th_thread,
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sizeof(th.th_thread));
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if (err != PS_OK)
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return (TD_ERR);
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}
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return (TD_OK);
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}
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static td_err_e
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libc_r_db_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *ev)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_event_enable(const td_thrhandle_t *th, int oo)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_event_getmsg(const td_thrhandle_t *th, td_event_msg_t *msg)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_get_info(const td_thrhandle_t *th, td_thrinfo_t *ti)
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{
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const td_thragent_t *ta;
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psaddr_t addr, current;
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ps_err_e err;
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ta = th->th_ta;
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ti->ti_ta_p = ta;
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err = ps_pread(ta->ta_ph, ta->ta_thread_run, ¤t,
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sizeof(psaddr_t));
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if (err != PS_OK)
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return (TD_ERR);
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ti->ti_lid = (th->th_thread == current) ? -1 : 0;
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addr = (psaddr_t)((uintptr_t)th->th_thread + ta->ta_ofs_uniqueid);
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err = ps_pread(ta->ta_ph, addr, &ti->ti_tid, sizeof(thread_t));
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/* libc_r numbers its threads starting with 0. Not smart. */
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ti->ti_tid++;
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return ((err == PS_OK) ? TD_OK : TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_getfpregs(const td_thrhandle_t *th, prfpregset_t *r)
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{
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jmp_buf jb;
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const td_thragent_t *ta;
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psaddr_t addr;
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ps_err_e err;
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ta = th->th_ta;
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err = ps_lgetfpregs(ta->ta_ph, -1, r);
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if (err != PS_OK)
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return (TD_ERR);
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err = ps_pread(ta->ta_ph, ta->ta_thread_run, &addr, sizeof(psaddr_t));
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if (err != PS_OK)
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return (TD_ERR);
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if (th->th_thread == addr)
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return (TD_OK);
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addr = (psaddr_t)((uintptr_t)th->th_thread + ta->ta_ofs_ctx);
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err = ps_pread(ta->ta_ph, addr, jb, sizeof(jb));
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if (err != PS_OK)
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return (TD_ERR);
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libc_r_md_getfpregs(jb, r);
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return (TD_OK);
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}
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static td_err_e
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libc_r_db_thr_getgregs(const td_thrhandle_t *th, prgregset_t r)
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{
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jmp_buf jb;
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const td_thragent_t *ta;
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psaddr_t addr;
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ps_err_e err;
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ta = th->th_ta;
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err = ps_lgetregs(ta->ta_ph, -1, r);
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if (err != PS_OK)
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return (TD_ERR);
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err = ps_pread(ta->ta_ph, ta->ta_thread_run, &addr, sizeof(psaddr_t));
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if (err != PS_OK)
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return (TD_ERR);
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if (th->th_thread == addr)
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return (TD_OK);
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addr = (psaddr_t)((uintptr_t)th->th_thread + ta->ta_ofs_ctx);
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err = ps_pread(ta->ta_ph, addr, jb, sizeof(jb));
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if (err != PS_OK)
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return (TD_ERR);
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libc_r_md_getgregs(jb, r);
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return (TD_OK);
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}
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static td_err_e
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libc_r_db_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *ev)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_setfpregs(const td_thrhandle_t *th, const prfpregset_t *r)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_setgregs(const td_thrhandle_t *th, const prgregset_t r)
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{
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return (TD_ERR);
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}
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static td_err_e
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libc_r_db_thr_validate(const td_thrhandle_t *th)
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{
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return (TD_ERR);
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}
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struct ta_ops libc_r_db_ops = {
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.to_init = libc_r_db_init,
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.to_ta_clear_event = libc_r_db_ta_clear_event,
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.to_ta_delete = libc_r_db_ta_delete,
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.to_ta_event_addr = libc_r_db_ta_event_addr,
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.to_ta_event_getmsg = libc_r_db_ta_event_getmsg,
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.to_ta_map_id2thr = libc_r_db_ta_map_id2thr,
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.to_ta_map_lwp2thr = libc_r_db_ta_map_lwp2thr,
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.to_ta_new = libc_r_db_ta_new,
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.to_ta_set_event = libc_r_db_ta_set_event,
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.to_ta_thr_iter = libc_r_db_ta_thr_iter,
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.to_thr_clear_event = libc_r_db_thr_clear_event,
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.to_thr_event_enable = libc_r_db_thr_event_enable,
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.to_thr_event_getmsg = libc_r_db_thr_event_getmsg,
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.to_thr_get_info = libc_r_db_thr_get_info,
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.to_thr_getfpregs = libc_r_db_thr_getfpregs,
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.to_thr_getgregs = libc_r_db_thr_getgregs,
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.to_thr_set_event = libc_r_db_thr_set_event,
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.to_thr_setfpregs = libc_r_db_thr_setfpregs,
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.to_thr_setgregs = libc_r_db_thr_setgregs,
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.to_thr_validate = libc_r_db_thr_validate
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};
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