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freebsd/contrib/gcc/mips-tdump.c
Alexander Kabaev e35cf0a56c Gcc 3.4.6 as of 2006/08/25 #116475.
2006-08-26 21:29:10 +00:00

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/* Read and manage MIPS symbol tables from object modules.
Copyright (C) 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2003, 2006
Free Software Foundation, Inc.
Contributed by hartzell@boulder.colorado.edu,
Rewritten by meissner@osf.org.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "version.h"
#ifdef index
#undef index
#endif
#ifndef CROSS_COMPILE
#include <a.out.h>
#else
#include "mips/a.out.h"
#endif /* CROSS_COMPILE */
/* Include getopt.h for the sake of getopt_long. */
#include "getopt.h"
#ifndef MIPS_IS_STAB
/* Macros for mips-tfile.c to encapsulate stabs in ECOFF, and for
and mips-tdump.c to print them out. This is used on the Alpha,
which does not include mips.h.
These must match the corresponding definitions in gdb/mipsread.c.
Unfortunately, gcc and gdb do not currently share any directories. */
#define CODE_MASK 0x8F300
#define MIPS_IS_STAB(sym) (((sym)->index & 0xFFF00) == CODE_MASK)
#define MIPS_MARK_STAB(code) ((code)+CODE_MASK)
#define MIPS_UNMARK_STAB(code) ((code)-CODE_MASK)
#endif
#define uchar unsigned char
#define ushort unsigned short
#define uint unsigned int
#define ulong unsigned long
/* Redefinition of storage classes as an enumeration for better
debugging. */
#ifndef stStaParam
#define stStaParam 16 /* Fortran static parameters */
#endif
#ifndef btVoid
#define btVoid 26 /* void basic type */
#endif
typedef enum sc {
sc_Nil = scNil, /* no storage class */
sc_Text = scText, /* text symbol */
sc_Data = scData, /* initialized data symbol */
sc_Bss = scBss, /* un-initialized data symbol */
sc_Register = scRegister, /* value of symbol is register number */
sc_Abs = scAbs, /* value of symbol is absolute */
sc_Undefined = scUndefined, /* who knows? */
sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
sc_Bits = scBits, /* this is a bit field */
sc_CdbSystem = scCdbSystem, /* var's value is IN CDB's address space */
sc_RegImage = scRegImage, /* register value saved on stack */
sc_Info = scInfo, /* symbol contains debugger information */
sc_UserStruct = scUserStruct, /* addr in struct user for current process */
sc_SData = scSData, /* load time only small data */
sc_SBss = scSBss, /* load time only small common */
sc_RData = scRData, /* load time only read only data */
sc_Var = scVar, /* Var parameter (fortran,pascal) */
sc_Common = scCommon, /* common variable */
sc_SCommon = scSCommon, /* small common */
sc_VarRegister = scVarRegister, /* Var parameter in a register */
sc_Variant = scVariant, /* Variant record */
sc_SUndefined = scSUndefined, /* small undefined(external) data */
sc_Init = scInit, /* .init section symbol */
sc_Max = scMax /* Max storage class+1 */
} sc_t;
/* Redefinition of symbol type. */
typedef enum st {
st_Nil = stNil, /* Nuthin' special */
st_Global = stGlobal, /* external symbol */
st_Static = stStatic, /* static */
st_Param = stParam, /* procedure argument */
st_Local = stLocal, /* local variable */
st_Label = stLabel, /* label */
st_Proc = stProc, /* " " Procedure */
st_Block = stBlock, /* beginning of block */
st_End = stEnd, /* end (of anything) */
st_Member = stMember, /* member (of anything - struct/union/enum */
st_Typedef = stTypedef, /* type definition */
st_File = stFile, /* file name */
st_RegReloc = stRegReloc, /* register relocation */
st_Forward = stForward, /* forwarding address */
st_StaticProc = stStaticProc, /* load time only static procs */
st_StaParam = stStaParam, /* Fortran static parameters */
st_Constant = stConstant, /* const */
#ifdef stStruct
st_Struct = stStruct, /* struct */
st_Union = stUnion, /* union */
st_Enum = stEnum, /* enum */
#endif
st_Str = stStr, /* string */
st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
st_Expr = stExpr, /* 2+2 vs. 4 */
st_Type = stType, /* post-coercion SER */
st_Max = stMax /* max type+1 */
} st_t;
/* Redefinition of type qualifiers. */
typedef enum tq {
tq_Nil = tqNil, /* bt is what you see */
tq_Ptr = tqPtr, /* pointer */
tq_Proc = tqProc, /* procedure */
tq_Array = tqArray, /* duh */
tq_Far = tqFar, /* longer addressing - 8086/8 land */
tq_Vol = tqVol, /* volatile */
tq_Max = tqMax /* Max type qualifier+1 */
} tq_t;
/* Redefinition of basic types. */
typedef enum bt {
bt_Nil = btNil, /* undefined */
bt_Adr = btAdr, /* address - integer same size as pointer */
bt_Char = btChar, /* character */
bt_UChar = btUChar, /* unsigned character */
bt_Short = btShort, /* short */
bt_UShort = btUShort, /* unsigned short */
bt_Int = btInt, /* int */
bt_UInt = btUInt, /* unsigned int */
bt_Long = btLong, /* long */
bt_ULong = btULong, /* unsigned long */
bt_Float = btFloat, /* float (real) */
bt_Double = btDouble, /* Double (real) */
bt_Struct = btStruct, /* Structure (Record) */
bt_Union = btUnion, /* Union (variant) */
bt_Enum = btEnum, /* Enumerated */
bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
bt_Range = btRange, /* subrange of int */
bt_Set = btSet, /* pascal sets */
bt_Complex = btComplex, /* fortran complex */
bt_DComplex = btDComplex, /* fortran double complex */
bt_Indirect = btIndirect, /* forward or unnamed typedef */
bt_FixedDec = btFixedDec, /* Fixed Decimal */
bt_FloatDec = btFloatDec, /* Float Decimal */
bt_String = btString, /* Varying Length Character String */
bt_Bit = btBit, /* Aligned Bit String */
bt_Picture = btPicture, /* Picture */
bt_Void = btVoid, /* void */
bt_Max = btMax /* Max basic type+1 */
} bt_t;
/* Redefinition of the language codes. */
typedef enum lang {
lang_C = langC,
lang_Pascal = langPascal,
lang_Fortran = langFortran,
lang_Assembler = langAssembler,
lang_Machine = langMachine,
lang_Nil = langNil,
lang_Ada = langAda,
lang_Pl1 = langPl1,
lang_Cobol = langCobol
} lang_t;
/* Redefinition of the debug level codes. */
typedef enum glevel {
glevel_0 = GLEVEL_0,
glevel_1 = GLEVEL_1,
glevel_2 = GLEVEL_2,
glevel_3 = GLEVEL_3
} glevel_t;
/* Keep track of the active scopes. */
typedef struct scope {
struct scope *prev; /* previous scope */
ulong open_sym; /* symbol opening scope */
sc_t sc; /* storage class */
st_t st; /* symbol type */
} scope_t;
struct filehdr global_hdr; /* a.out header */
int errors = 0; /* # of errors */
int want_aux = 0; /* print aux table */
int want_line = 0; /* print line numbers */
int want_rfd = 0; /* print relative file desc's */
int want_scope = 0; /* print scopes for every symbol */
int tfile = 0; /* no global header file */
int version = 0; /* print version # */
int verbose = 0;
int tfile_fd; /* file descriptor of .T file */
off_t tfile_offset; /* current offset in .T file */
scope_t *cur_scope = 0; /* list of active scopes */
scope_t *free_scope = 0; /* list of freed scopes */
HDRR sym_hdr; /* symbolic header */
char *l_strings; /* local strings */
char *e_strings; /* external strings */
SYMR *l_symbols; /* local symbols */
EXTR *e_symbols; /* external symbols */
LINER *lines; /* line numbers */
DNR *dense_nums; /* dense numbers */
OPTR *opt_symbols; /* optimization symbols */
AUXU *aux_symbols; /* Auxiliary symbols */
char *aux_used; /* map of which aux syms are used */
FDR *file_desc; /* file tables */
ulong *rfile_desc; /* relative file tables */
PDR *proc_desc; /* procedure tables */
/* Forward reference for functions. */
static void *read_seek (void *, size_t, off_t, const char *);
static void read_tfile (void);
static void print_global_hdr (struct filehdr *);
static void print_sym_hdr (HDRR *);
static void print_file_desc (FDR *, int);
static void print_symbol (SYMR *, int, const char *, AUXU *, int, FDR *);
static void print_aux (AUXU, int, int);
static void emit_aggregate (char *, AUXU, AUXU, const char *, FDR *);
static const char *st_to_string (st_t);
static const char *sc_to_string (sc_t);
static const char *glevel_to_string (glevel_t);
static const char *lang_to_string (lang_t);
static const char *type_to_string (AUXU *, int, FDR *);
extern char *optarg;
extern int optind;
extern int opterr;
/* Create a table of debugging stab-codes and corresponding names. */
#define __define_stab(NAME, CODE, STRING) {(int)CODE, STRING},
const struct {const short code; const char string[10];} stab_names[] = {
#include "stab.def"
#undef __define_stab
};
/* Command line options for getopt_long. */
static const struct option options[] =
{
{ "version", 0, 0, 'V' },
{ "verbose", 0, 0, 'v' },
{ 0, 0, 0, 0 }
};
/* Read some bytes at a specified location, and return a pointer.
Read_seek takes a pointer PTR to a buffer or NULL and reads SIZE
bytes from offset OFFSET. In case of errors CONTEXT is used as
error message. */
static void *
read_seek (void *ptr, size_t size, off_t offset, const char *context)
{
long read_size = 0;
if (size == 0) /* nothing to read */
return ptr;
if (!ptr)
ptr = xmalloc (size);
if ((tfile_offset != offset && lseek (tfile_fd, offset, 0) == -1)
|| (read_size = read (tfile_fd, ptr, size)) < 0)
{
perror (context);
exit (1);
}
if (read_size != (long) size)
{
fprintf (stderr, "%s: read %ld bytes, expected %ld bytes\n",
context, read_size, (long) size);
exit (1);
}
tfile_offset = offset + size;
return ptr;
}
/* Convert language code to string format. */
static const char *
lang_to_string (lang_t lang)
{
switch (lang)
{
case langC: return "C";
case langPascal: return "Pascal";
case langFortran: return "Fortran";
case langAssembler: return "Assembler";
case langMachine: return "Machine";
case langNil: return "Nil";
case langAda: return "Ada";
case langPl1: return "Pl1";
case langCobol: return "Cobol";
}
return "Unknown language";
}
/* Convert storage class to string. */
static const char *
sc_to_string (sc_t storage_class)
{
switch(storage_class)
{
case sc_Nil: return "Nil";
case sc_Text: return "Text";
case sc_Data: return "Data";
case sc_Bss: return "Bss";
case sc_Register: return "Register";
case sc_Abs: return "Abs";
case sc_Undefined: return "Undefined";
case sc_CdbLocal: return "CdbLocal";
case sc_Bits: return "Bits";
case sc_CdbSystem: return "CdbSystem";
case sc_RegImage: return "RegImage";
case sc_Info: return "Info";
case sc_UserStruct: return "UserStruct";
case sc_SData: return "SData";
case sc_SBss: return "SBss";
case sc_RData: return "RData";
case sc_Var: return "Var";
case sc_Common: return "Common";
case sc_SCommon: return "SCommon";
case sc_VarRegister: return "VarRegister";
case sc_Variant: return "Variant";
case sc_SUndefined: return "SUndefined";
case sc_Init: return "Init";
case sc_Max: return "Max";
}
return "???";
}
/* Convert symbol type to string. */
static const char *
st_to_string (st_t symbol_type)
{
switch(symbol_type)
{
case st_Nil: return "Nil";
case st_Global: return "Global";
case st_Static: return "Static";
case st_Param: return "Param";
case st_Local: return "Local";
case st_Label: return "Label";
case st_Proc: return "Proc";
case st_Block: return "Block";
case st_End: return "End";
case st_Member: return "Member";
case st_Typedef: return "Typedef";
case st_File: return "File";
case st_RegReloc: return "RegReloc";
case st_Forward: return "Forward";
case st_StaticProc: return "StaticProc";
case st_Constant: return "Constant";
case st_StaParam: return "StaticParam";
#ifdef stStruct
case st_Struct: return "Struct";
case st_Union: return "Union";
case st_Enum: return "Enum";
#endif
case st_Str: return "String";
case st_Number: return "Number";
case st_Expr: return "Expr";
case st_Type: return "Type";
case st_Max: return "Max";
}
return "???";
}
/* Convert debug level to string. */
static const char *
glevel_to_string (glevel_t g_level)
{
switch(g_level)
{
case GLEVEL_0: return "G0";
case GLEVEL_1: return "G1";
case GLEVEL_2: return "G2";
case GLEVEL_3: return "G3";
}
return "??";
}
/* Convert the type information to string format. */
static const char *
type_to_string (AUXU *aux_ptr, int index, FDR *fdp)
{
AUXU u;
struct qual {
tq_t type;
int low_bound;
int high_bound;
int stride;
} qualifiers[7];
bt_t basic_type;
int i;
static char buffer1[1024];
static char buffer2[1024];
char *p1 = buffer1;
char *p2 = buffer2;
char *used_ptr = aux_used + (aux_ptr - aux_symbols);
for (i = 0; i < 7; i++)
{
qualifiers[i].low_bound = 0;
qualifiers[i].high_bound = 0;
qualifiers[i].stride = 0;
}
used_ptr[index] = 1;
u = aux_ptr[index++];
if (u.isym == -1)
return "-1 (no type)";
basic_type = (bt_t) u.ti.bt;
qualifiers[0].type = (tq_t) u.ti.tq0;
qualifiers[1].type = (tq_t) u.ti.tq1;
qualifiers[2].type = (tq_t) u.ti.tq2;
qualifiers[3].type = (tq_t) u.ti.tq3;
qualifiers[4].type = (tq_t) u.ti.tq4;
qualifiers[5].type = (tq_t) u.ti.tq5;
qualifiers[6].type = tq_Nil;
/*
* Go get the basic type.
*/
switch (basic_type)
{
case bt_Nil: /* undefined */
strcpy (p1, "nil");
break;
case bt_Adr: /* address - integer same size as pointer */
strcpy (p1, "address");
break;
case bt_Char: /* character */
strcpy (p1, "char");
break;
case bt_UChar: /* unsigned character */
strcpy (p1, "unsigned char");
break;
case bt_Short: /* short */
strcpy (p1, "short");
break;
case bt_UShort: /* unsigned short */
strcpy (p1, "unsigned short");
break;
case bt_Int: /* int */
strcpy (p1, "int");
break;
case bt_UInt: /* unsigned int */
strcpy (p1, "unsigned int");
break;
case bt_Long: /* long */
strcpy (p1, "long");
break;
case bt_ULong: /* unsigned long */
strcpy (p1, "unsigned long");
break;
case bt_Float: /* float (real) */
strcpy (p1, "float");
break;
case bt_Double: /* Double (real) */
strcpy (p1, "double");
break;
/* Structures add 1-2 aux words:
1st word is [ST_RFDESCAPE, offset] pointer to struct def;
2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
case bt_Struct: /* Structure (Record) */
emit_aggregate (p1, aux_ptr[index], aux_ptr[index+1], "struct", fdp);
used_ptr[index] = 1;
if (aux_ptr[index].rndx.rfd == ST_RFDESCAPE)
used_ptr[++index] = 1;
index++; /* skip aux words */
break;
/* Unions add 1-2 aux words:
1st word is [ST_RFDESCAPE, offset] pointer to union def;
2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
case bt_Union: /* Union */
emit_aggregate (p1, aux_ptr[index], aux_ptr[index+1], "union", fdp);
used_ptr[index] = 1;
if (aux_ptr[index].rndx.rfd == ST_RFDESCAPE)
used_ptr[++index] = 1;
index++; /* skip aux words */
break;
/* Enumerations add 1-2 aux words:
1st word is [ST_RFDESCAPE, offset] pointer to enum def;
2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
case bt_Enum: /* Enumeration */
emit_aggregate (p1, aux_ptr[index], aux_ptr[index+1], "enum", fdp);
used_ptr[index] = 1;
if (aux_ptr[index].rndx.rfd == ST_RFDESCAPE)
used_ptr[++index] = 1;
index++; /* skip aux words */
break;
case bt_Typedef: /* defined via a typedef, isymRef points */
strcpy (p1, "typedef");
break;
case bt_Range: /* subrange of int */
strcpy (p1, "subrange");
break;
case bt_Set: /* pascal sets */
strcpy (p1, "set");
break;
case bt_Complex: /* fortran complex */
strcpy (p1, "complex");
break;
case bt_DComplex: /* fortran double complex */
strcpy (p1, "double complex");
break;
case bt_Indirect: /* forward or unnamed typedef */
strcpy (p1, "forward/unnamed typedef");
break;
case bt_FixedDec: /* Fixed Decimal */
strcpy (p1, "fixed decimal");
break;
case bt_FloatDec: /* Float Decimal */
strcpy (p1, "float decimal");
break;
case bt_String: /* Varying Length Character String */
strcpy (p1, "string");
break;
case bt_Bit: /* Aligned Bit String */
strcpy (p1, "bit");
break;
case bt_Picture: /* Picture */
strcpy (p1, "picture");
break;
case bt_Void: /* Void */
strcpy (p1, "void");
break;
default:
sprintf (p1, "Unknown basic type %d", (int) basic_type);
break;
}
p1 += strlen (buffer1);
/*
* If this is a bitfield, get the bitsize.
*/
if (u.ti.fBitfield)
{
int bitsize;
used_ptr[index] = 1;
bitsize = aux_ptr[index++].width;
sprintf (p1, " : %d", bitsize);
p1 += strlen (buffer1);
}
/*
* Deal with any qualifiers.
*/
if (qualifiers[0].type != tq_Nil)
{
/*
* Snarf up any array bounds in the correct order. Arrays
* store 5 successive words in the aux. table:
* word 0 RNDXR to type of the bounds (ie, int)
* word 1 Current file descriptor index
* word 2 low bound
* word 3 high bound (or -1 if [])
* word 4 stride size in bits
*/
for (i = 0; i < 7; i++)
{
if (qualifiers[i].type == tq_Array)
{
qualifiers[i].low_bound = aux_ptr[index+2].dnLow;
qualifiers[i].high_bound = aux_ptr[index+3].dnHigh;
qualifiers[i].stride = aux_ptr[index+4].width;
used_ptr[index] = 1;
used_ptr[index+1] = 1;
used_ptr[index+2] = 1;
used_ptr[index+3] = 1;
used_ptr[index+4] = 1;
index += 5;
}
}
/*
* Now print out the qualifiers.
*/
for (i = 0; i < 6; i++)
{
switch (qualifiers[i].type)
{
case tq_Nil:
case tq_Max:
break;
case tq_Ptr:
strcpy (p2, "ptr to ");
p2 += sizeof ("ptr to ")-1;
break;
case tq_Vol:
strcpy (p2, "volatile ");
p2 += sizeof ("volatile ")-1;
break;
case tq_Far:
strcpy (p2, "far ");
p2 += sizeof ("far ")-1;
break;
case tq_Proc:
strcpy (p2, "func. ret. ");
p2 += sizeof ("func. ret. ");
break;
case tq_Array:
{
int first_array = i;
int j;
/* Print array bounds reversed (ie, in the order the C
programmer writes them). C is such a fun language.... */
while (i < 5 && qualifiers[i+1].type == tq_Array)
i++;
for (j = i; j >= first_array; j--)
{
strcpy (p2, "array [");
p2 += sizeof ("array [")-1;
if (qualifiers[j].low_bound != 0)
sprintf (p2,
"%ld:%ld {%ld bits}",
(long) qualifiers[j].low_bound,
(long) qualifiers[j].high_bound,
(long) qualifiers[j].stride);
else if (qualifiers[j].high_bound != -1)
sprintf (p2,
"%ld {%ld bits}",
(long) (qualifiers[j].high_bound + 1),
(long) (qualifiers[j].stride));
else
sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride));
p2 += strlen (p2);
strcpy (p2, "] of ");
p2 += sizeof ("] of ")-1;
}
}
break;
}
}
}
strcpy (p2, buffer1);
return buffer2;
}
/* Print out the global file header for object files. */
static void
print_global_hdr (struct filehdr *ptr)
{
char *time = ctime ((time_t *)&ptr->f_timdat);
ushort flags = ptr->f_flags;
printf("Global file header:\n");
printf(" %-*s 0x%x\n", 24, "magic number", (ushort) ptr->f_magic);
printf(" %-*s %d\n", 24, "# sections", (int) ptr->f_nscns);
printf(" %-*s %ld, %s", 24, "timestamp", (long) ptr->f_timdat, time);
printf(" %-*s %ld\n", 24, "symbolic header offset", (long) ptr->f_symptr);
printf(" %-*s %ld\n", 24, "symbolic header size", (long) ptr->f_nsyms);
printf(" %-*s %ld\n", 24, "optional header", (long) ptr->f_opthdr);
printf(" %-*s 0x%x", 24, "flags", (ushort) flags);
if ((flags & F_RELFLG) != 0)
printf (", F_RELFLG");
if ((flags & F_EXEC) != 0)
printf (", F_EXEC");
if ((flags & F_LNNO) != 0)
printf (", F_LNNO");
if ((flags & F_LSYMS) != 0)
printf (", F_LSYMS");
if ((flags & F_MINMAL) != 0)
printf (", F_MINMAL");
if ((flags & F_UPDATE) != 0)
printf (", F_UPDATE");
if ((flags & F_SWABD) != 0)
printf (", F_SWABD");
if ((flags & F_AR16WR) != 0)
printf (", F_AR16WR");
if ((flags & F_AR32WR) != 0)
printf (", F_AR32WR");
if ((flags & F_AR32W) != 0)
printf (", F_AR32W");
if ((flags & F_PATCH) != 0)
printf (", F_PATCH/F_NODF");
printf ("\n\n");
}
/* Print out the symbolic header. */
static void
print_sym_hdr (HDRR *sym_ptr)
{
int width = 20;
printf("Symbolic header, magic number = 0x%04x, vstamp = %d.%d:\n\n",
sym_ptr->magic & 0xffff,
(sym_ptr->vstamp & 0xffff) >> 8,
sym_ptr->vstamp & 0xff);
printf(" %-*s %11s %11s %11s\n", width, "Info", "Offset", "Number", "Bytes");
printf(" %-*s %11s %11s %11s\n", width, "====", "======", "======", "=====\n");
printf(" %-*s %11ld %11ld %11ld [%d]\n", width, "Line numbers",
(long) sym_ptr->cbLineOffset,
(long) sym_ptr->cbLine,
(long) sym_ptr->cbLine,
(int) sym_ptr->ilineMax);
printf(" %-*s %11ld %11ld %11ld\n", width, "Dense numbers",
(long) sym_ptr->cbDnOffset,
(long) sym_ptr->idnMax,
(long) (sym_ptr->idnMax * sizeof (DNR)));
printf(" %-*s %11ld %11ld %11ld\n", width, "Procedures Tables",
(long) sym_ptr->cbPdOffset,
(long) sym_ptr->ipdMax,
(long) (sym_ptr->ipdMax * sizeof (PDR)));
printf(" %-*s %11ld %11ld %11ld\n", width, "Local Symbols",
(long) sym_ptr->cbSymOffset,
(long) sym_ptr->isymMax,
(long) (sym_ptr->isymMax * sizeof (SYMR)));
printf(" %-*s %11ld %11ld %11ld\n", width, "Optimization Symbols",
(long) sym_ptr->cbOptOffset,
(long) sym_ptr->ioptMax,
(long) (sym_ptr->ioptMax * sizeof (OPTR)));
printf(" %-*s %11ld %11ld %11ld\n", width, "Auxiliary Symbols",
(long) sym_ptr->cbAuxOffset,
(long) sym_ptr->iauxMax,
(long) (sym_ptr->iauxMax * sizeof (AUXU)));
printf(" %-*s %11ld %11ld %11ld\n", width, "Local Strings",
(long) sym_ptr->cbSsOffset,
(long) sym_ptr->issMax,
(long) sym_ptr->issMax);
printf(" %-*s %11ld %11ld %11ld\n", width, "External Strings",
(long) sym_ptr->cbSsExtOffset,
(long) sym_ptr->issExtMax,
(long) sym_ptr->issExtMax);
printf(" %-*s %11ld %11ld %11ld\n", width, "File Tables",
(long) sym_ptr->cbFdOffset,
(long) sym_ptr->ifdMax,
(long) (sym_ptr->ifdMax * sizeof (FDR)));
printf(" %-*s %11ld %11ld %11ld\n", width, "Relative Files",
(long) sym_ptr->cbRfdOffset,
(long) sym_ptr->crfd,
(long) (sym_ptr->crfd * sizeof (ulong)));
printf(" %-*s %11ld %11ld %11ld\n", width, "External Symbols",
(long) sym_ptr->cbExtOffset,
(long) sym_ptr->iextMax,
(long) (sym_ptr->iextMax * sizeof (EXTR)));
}
/* Print out a symbol. */
static void
print_symbol (SYMR *sym_ptr, int number, const char *strbase, AUXU *aux_base,
int ifd, FDR *fdp)
{
sc_t storage_class = (sc_t) sym_ptr->sc;
st_t symbol_type = (st_t) sym_ptr->st;
ulong index = sym_ptr->index;
char *used_ptr = aux_used + (aux_base - aux_symbols);
scope_t *scope_ptr;
printf ("\n Symbol# %d: \"%s\"\n", number, sym_ptr->iss + strbase);
if (aux_base != (AUXU *) 0 && index != indexNil)
switch (symbol_type)
{
case st_Nil:
case st_Label:
break;
case st_File:
case st_Block:
printf (" End+1 symbol: %ld\n", index);
if (want_scope)
{
if (free_scope == (scope_t *) 0)
scope_ptr = xmalloc (sizeof (scope_t));
else
{
scope_ptr = free_scope;
free_scope = scope_ptr->prev;
}
scope_ptr->open_sym = number;
scope_ptr->st = symbol_type;
scope_ptr->sc = storage_class;
scope_ptr->prev = cur_scope;
cur_scope = scope_ptr;
}
break;
case st_End:
if (storage_class == sc_Text || storage_class == sc_Info)
printf (" First symbol: %ld\n", index);
else
{
used_ptr[index] = 1;
printf (" First symbol: %ld\n", (long) aux_base[index].isym);
}
if (want_scope)
{
if (cur_scope == (scope_t *) 0)
printf (" Can't pop end scope\n");
else
{
scope_ptr = cur_scope;
cur_scope = scope_ptr->prev;
scope_ptr->prev = free_scope;
free_scope = scope_ptr;
}
}
break;
case st_Proc:
case st_StaticProc:
if (MIPS_IS_STAB(sym_ptr))
;
else if (ifd == -1) /* local symbol */
{
used_ptr[index] = used_ptr[index+1] = 1;
printf (" End+1 symbol: %-7ld Type: %s\n",
(long) aux_base[index].isym,
type_to_string (aux_base, index+1, fdp));
}
else /* global symbol */
printf (" Local symbol: %ld\n", index);
if (want_scope)
{
if (free_scope == (scope_t *) 0)
scope_ptr = xmalloc (sizeof (scope_t));
else
{
scope_ptr = free_scope;
free_scope = scope_ptr->prev;
}
scope_ptr->open_sym = number;
scope_ptr->st = symbol_type;
scope_ptr->sc = storage_class;
scope_ptr->prev = cur_scope;
cur_scope = scope_ptr;
}
break;
#ifdef stStruct
case st_Struct:
case st_Union:
case st_Enum:
printf (" End+1 symbol: %lu\n", index);
break;
#endif
default:
if (!MIPS_IS_STAB (sym_ptr))
{
used_ptr[index] = 1;
printf (" Type: %s\n",
type_to_string (aux_base, index, fdp));
}
break;
}
if (want_scope)
{
printf (" Scopes: ");
if (cur_scope == (scope_t *) 0)
printf (" none\n");
else
{
for (scope_ptr = cur_scope;
scope_ptr != (scope_t *) 0;
scope_ptr = scope_ptr->prev)
{
const char *class;
if (scope_ptr->st == st_Proc || scope_ptr->st == st_StaticProc)
class = "func.";
else if (scope_ptr->st == st_File)
class = "file";
else if (scope_ptr->st == st_Block && scope_ptr->sc == sc_Text)
class = "block";
else if (scope_ptr->st == st_Block && scope_ptr->sc == sc_Info)
class = "type";
else
class = "???";
printf (" %ld [%s]", scope_ptr->open_sym, class);
}
printf ("\n");
}
}
printf (" Value: %-13ld ",
(long)sym_ptr->value);
if (ifd == -1)
printf ("String index: %ld\n", (long)sym_ptr->iss);
else
printf ("String index: %-11ld Ifd: %d\n",
(long)sym_ptr->iss, ifd);
printf (" Symbol type: %-11sStorage class: %-11s",
st_to_string (symbol_type), sc_to_string (storage_class));
if (MIPS_IS_STAB(sym_ptr))
{
int i = ARRAY_SIZE (stab_names);
const char *stab_name = "stab";
short code = MIPS_UNMARK_STAB(sym_ptr->index);
while (--i >= 0)
if (stab_names[i].code == code)
{
stab_name = stab_names[i].string;
break;
}
printf ("Index: 0x%lx (%s)\n", (long)sym_ptr->index, stab_name);
}
else if (sym_ptr->st == stLabel && sym_ptr->index != indexNil)
printf ("Index: %ld (line#)\n", (long)sym_ptr->index);
else
printf ("Index: %ld\n", (long)sym_ptr->index);
}
/* Print out a word from the aux. table in various formats. */
static void
print_aux (AUXU u, int auxi, int used)
{
printf ("\t%s#%-5d %11ld, [%4ld/%7ld], [%2d %1d:%1d %1x:%1x:%1x:%1x:%1x:%1x]\n",
(used) ? " " : "* ",
auxi,
(long) u.isym,
(long) u.rndx.rfd,
(long) u.rndx.index,
u.ti.bt,
u.ti.fBitfield,
u.ti.continued,
u.ti.tq0,
u.ti.tq1,
u.ti.tq2,
u.ti.tq3,
u.ti.tq4,
u.ti.tq5);
}
/* Write aggregate information to a string. */
static void
emit_aggregate (char *string, AUXU u, AUXU u2, const char *which, FDR *fdp)
{
unsigned int ifd = u.rndx.rfd;
unsigned int index = u.rndx.index;
const char *name;
if (ifd == ST_RFDESCAPE)
ifd = u2.isym;
/* An ifd of -1 is an opaque type. An escaped index of 0 is a
struct return type of a procedure compiled without -g. */
if (ifd == 0xffffffff
|| (u.rndx.rfd == ST_RFDESCAPE && index == 0))
name = "<undefined>";
else if (index == indexNil)
name = "<no name>";
else
{
if (fdp == 0 || sym_hdr.crfd == 0)
fdp = &file_desc[ifd];
else
fdp = &file_desc[rfile_desc[fdp->rfdBase + ifd]];
name = &l_strings[fdp->issBase + l_symbols[index + fdp->isymBase].iss];
}
sprintf (string,
"%s %s { ifd = %u, index = %u }",
which, name, ifd, index);
}
/* Print out information about a file descriptor, and the symbols,
procedures, and line numbers within it. */
static void
print_file_desc (FDR *fdp, int number)
{
char *str_base;
AUXU *aux_base;
int symi, pdi;
int width = 20;
char *used_base;
str_base = l_strings + fdp->issBase;
aux_base = aux_symbols + fdp->iauxBase;
used_base = aux_used + (aux_base - aux_symbols);
printf ("\nFile #%d, \"%s\"\n\n",
number,
fdp->rss != issNil ? str_base + fdp->rss : "<unknown>");
printf (" Name index = %-10ld Readin = %s\n",
(long) fdp->rss, (fdp->fReadin) ? "Yes" : "No");
printf (" Merge = %-10s Endian = %s\n",
(fdp->fMerge) ? "Yes" : "No",
(fdp->fBigendian) ? "BIG" : "LITTLE");
printf (" Debug level = %-10s Language = %s\n",
glevel_to_string (fdp->glevel),
lang_to_string((lang_t) fdp->lang));
printf (" Adr = 0x%08lx\n\n", (long) fdp->adr);
printf(" %-*s %11s %11s %11s %11s\n", width, "Info", "Start", "Number", "Size", "Offset");
printf(" %-*s %11s %11s %11s %11s\n", width, "====", "=====", "======", "====", "======");
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Local strings",
(ulong) fdp->issBase,
(ulong) fdp->cbSs,
(ulong) fdp->cbSs,
(ulong) (fdp->issBase + sym_hdr.cbSsOffset));
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Local symbols",
(ulong) fdp->isymBase,
(ulong) fdp->csym,
(ulong) (fdp->csym * sizeof (SYMR)),
(ulong) (fdp->isymBase * sizeof (SYMR) + sym_hdr.cbSymOffset));
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Line numbers",
(ulong) fdp->cbLineOffset,
(ulong) fdp->cline,
(ulong) fdp->cbLine,
(ulong) (fdp->cbLineOffset + sym_hdr.cbLineOffset));
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Optimization symbols",
(ulong) fdp->ioptBase,
(ulong) fdp->copt,
(ulong) (fdp->copt * sizeof (OPTR)),
(ulong) (fdp->ioptBase * sizeof (OPTR) + sym_hdr.cbOptOffset));
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Procedures",
(ulong) fdp->ipdFirst,
(ulong) fdp->cpd,
(ulong) (fdp->cpd * sizeof (PDR)),
(ulong) (fdp->ipdFirst * sizeof (PDR) + sym_hdr.cbPdOffset));
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Auxiliary symbols",
(ulong) fdp->iauxBase,
(ulong) fdp->caux,
(ulong) (fdp->caux * sizeof (AUXU)),
(ulong) (fdp->iauxBase * sizeof(AUXU) + sym_hdr.cbAuxOffset));
printf(" %-*s %11lu %11lu %11lu %11lu\n",
width, "Relative Files",
(ulong) fdp->rfdBase,
(ulong) fdp->crfd,
(ulong) (fdp->crfd * sizeof (ulong)),
(ulong) (fdp->rfdBase * sizeof(ulong) + sym_hdr.cbRfdOffset));
if (want_scope && cur_scope != (scope_t *) 0)
printf ("\n Warning scope does not start at 0!\n");
/*
* print the info about the symbol table.
*/
printf ("\n There are %lu local symbols, starting at %lu\n",
(ulong) fdp->csym,
(ulong) (fdp->isymBase + sym_hdr.cbSymOffset));
for(symi = fdp->isymBase; symi < (fdp->csym + fdp->isymBase); symi++)
print_symbol (&l_symbols[symi],
symi - fdp->isymBase,
str_base,
aux_base,
-1,
fdp);
if (want_scope && cur_scope != (scope_t *) 0)
printf ("\n Warning scope does not end at 0!\n");
/*
* print the aux. table if desired.
*/
if (want_aux && fdp->caux != 0)
{
int auxi;
printf ("\n There are %lu auxiliary table entries, starting at %lu.\n\n",
(ulong) fdp->caux,
(ulong) (fdp->iauxBase + sym_hdr.cbAuxOffset));
for (auxi = fdp->iauxBase; auxi < (fdp->caux + fdp->iauxBase); auxi++)
print_aux (aux_base[auxi], auxi, used_base[auxi]);
}
/*
* print the relative file descriptors.
*/
if (want_rfd && fdp->crfd != 0)
{
ulong *rfd_ptr, i;
printf ("\n There are %lu relative file descriptors, starting at %lu.\n",
(ulong) fdp->crfd,
(ulong) fdp->rfdBase);
rfd_ptr = rfile_desc + fdp->rfdBase;
for (i = 0; i < (ulong) fdp->crfd; i++)
{
printf ("\t#%-5ld %11ld, 0x%08lx\n", i, *rfd_ptr, *rfd_ptr);
rfd_ptr++;
}
}
/*
* do the procedure descriptors.
*/
printf ("\n There are %lu procedure descriptor entries, ", (ulong) fdp->cpd);
printf ("starting at %lu.\n", (ulong) fdp->ipdFirst);
for (pdi = fdp->ipdFirst; pdi < (fdp->cpd + fdp->ipdFirst); pdi++)
{
PDR *proc_ptr = &proc_desc[pdi];
printf ("\n\tProcedure descriptor %d:\n", (pdi - fdp->ipdFirst));
if (l_symbols != 0)
printf ("\t Name index = %-11ld Name = \"%s\"\n",
(long) l_symbols[proc_ptr->isym + fdp->isymBase].iss,
l_symbols[proc_ptr->isym + fdp->isymBase].iss + str_base);
printf ("\t .mask 0x%08lx,%-9ld .fmask 0x%08lx,%ld\n",
(long) proc_ptr->regmask,
(long) proc_ptr->regoffset,
(long) proc_ptr->fregmask,
(long) proc_ptr->fregoffset);
printf ("\t .frame $%d,%ld,$%d\n",
(int) proc_ptr->framereg,
(long) proc_ptr->frameoffset,
(int) proc_ptr->pcreg);
printf ("\t Opt. start = %-11ld Symbols start = %ld\n",
(long) proc_ptr->iopt,
(long) proc_ptr->isym);
printf ("\t First line # = %-11ld Last line # = %ld\n",
(long) proc_ptr->lnLow,
(long) proc_ptr->lnHigh);
printf ("\t Line Offset = %-11ld Address = 0x%08lx\n",
(long) proc_ptr->cbLineOffset,
(long) proc_ptr->adr);
/*
* print the line number entries.
*/
if (want_line && fdp->cline != 0)
{
int delta, count;
long cur_line = proc_ptr->lnLow;
uchar *line_ptr = (((uchar *)lines) + proc_ptr->cbLineOffset
+ fdp->cbLineOffset);
uchar *line_end;
if (pdi == fdp->cpd + fdp->ipdFirst - 1) /* last procedure */
line_end = ((uchar *)lines) + fdp->cbLine + fdp->cbLineOffset;
else /* not last proc. */
line_end = (((uchar *)lines) + proc_desc[pdi+1].cbLineOffset
+ fdp->cbLineOffset);
printf ("\n\tThere are %lu bytes holding line numbers, starting at %lu.\n",
(ulong) (line_end - line_ptr),
(ulong) (fdp->ilineBase + sym_hdr.cbLineOffset));
while (line_ptr < line_end)
{ /* sign extend nibble */
delta = ((*line_ptr >> 4) ^ 0x8) - 0x8;
count = (*line_ptr & 0xf) + 1;
if (delta != -8)
line_ptr++;
else
{
delta = (((line_ptr[1]) & 0xff) << 8) + ((line_ptr[2]) & 0xff);
delta = (delta ^ 0x8000) - 0x8000;
line_ptr += 3;
}
cur_line += delta;
printf ("\t Line %11ld, delta %5d, count %2d\n",
cur_line,
delta,
count);
}
}
}
}
/* Read in the portions of the .T file that we will print out. */
static void
read_tfile (void)
{
short magic;
off_t sym_hdr_offset = 0;
read_seek (&magic, sizeof (magic), 0, "Magic number");
if (!tfile)
{
/* Print out the global header, since this is not a T-file. */
read_seek (&global_hdr, sizeof (global_hdr), 0, "Global file header");
print_global_hdr (&global_hdr);
if (global_hdr.f_symptr == 0)
{
printf ("No symbolic header, Goodbye!\n");
exit (1);
}
sym_hdr_offset = global_hdr.f_symptr;
}
read_seek (&sym_hdr, sizeof (sym_hdr), sym_hdr_offset, "Symbolic header");
print_sym_hdr (&sym_hdr);
lines = read_seek (NULL, sym_hdr.cbLine, sym_hdr.cbLineOffset,
"Line numbers");
dense_nums = read_seek (NULL, sym_hdr.idnMax * sizeof (DNR),
sym_hdr.cbDnOffset, "Dense numbers");
proc_desc = read_seek (NULL, sym_hdr.ipdMax * sizeof (PDR),
sym_hdr.cbPdOffset, "Procedure tables");
l_symbols = read_seek (NULL, sym_hdr.isymMax * sizeof (SYMR),
sym_hdr.cbSymOffset, "Local symbols");
opt_symbols = read_seek (NULL, sym_hdr.ioptMax * sizeof (OPTR),
sym_hdr.cbOptOffset, "Optimization symbols");
aux_symbols = read_seek (NULL, sym_hdr.iauxMax * sizeof (AUXU),
sym_hdr.cbAuxOffset, "Auxiliary symbols");
if (sym_hdr.iauxMax > 0)
aux_used = xcalloc (sym_hdr.iauxMax, 1);
l_strings = read_seek (NULL, sym_hdr.issMax,
sym_hdr.cbSsOffset, "Local string table");
e_strings = read_seek (NULL, sym_hdr.issExtMax,
sym_hdr.cbSsExtOffset, "External string table");
file_desc = read_seek (NULL, sym_hdr.ifdMax * sizeof (FDR),
sym_hdr.cbFdOffset, "File tables");
rfile_desc = read_seek (NULL, sym_hdr.crfd * sizeof (ulong),
sym_hdr.cbRfdOffset, "Relative file tables");
e_symbols = read_seek (NULL, sym_hdr.iextMax * sizeof (EXTR),
sym_hdr.cbExtOffset, "External symbols");
}
extern int main (int, char **);
int
main (int argc, char **argv)
{
int i, opt;
/*
* Process arguments
*/
while ((opt = getopt_long (argc, argv, "alrsvt", options, NULL)) != -1)
switch (opt)
{
default: errors++; break;
case 'a': want_aux++; break; /* print aux table */
case 'l': want_line++; break; /* print line numbers */
case 'r': want_rfd++; break; /* print relative fd's */
case 's': want_scope++; break; /* print scope info */
case 'v': verbose++; break; /* print version # */
case 'V': version++; break; /* print version # */
case 't': tfile++; break; /* this is a tfile (without header),
and not a .o */
}
if (version)
{
printf ("mips-tdump (GCC) %s\n", version_string);
fputs ("Copyright (C) 2006 Free Software Foundation, Inc.\n", stdout);
fputs ("This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n",
stdout);
exit (0);
}
if (optind != argc - 1)
errors++;
if (verbose || errors)
{
fprintf (stderr, "mips-tdump (GCC) %s", version_string);
#ifdef TARGET_VERSION
TARGET_VERSION;
#endif
fputc ('\n', stderr);
}
if (errors)
{
fprintf (stderr, "Calling Sequence:\n");
fprintf (stderr, "\t%s [-alrst] <object-or-T-file>\n", argv[0]);
fprintf (stderr, "\n");
fprintf (stderr, "switches:\n");
fprintf (stderr, "\t-a Print out auxiliary table.\n");
fprintf (stderr, "\t-l Print out line numbers.\n");
fprintf (stderr, "\t-r Print out relative file descriptors.\n");
fprintf (stderr, "\t-s Print out the current scopes for an item.\n");
fprintf (stderr, "\t-t Assume there is no global header (ie, a T-file).\n");
fprintf (stderr, "\t-v Print program version.\n");
return 1;
}
/*
* Open and process the input file.
*/
tfile_fd = open (argv[optind], O_RDONLY);
if (tfile_fd < 0)
{
perror (argv[optind]);
return 1;
}
read_tfile ();
/*
* Print any global aux words if any.
*/
if (want_aux)
{
long last_aux_in_use;
if (sym_hdr.ifdMax != 0 && file_desc[0].iauxBase != 0)
{
printf ("\nGlobal auxiliary entries before first file:\n");
for (i = 0; i < file_desc[0].iauxBase; i++)
print_aux (aux_symbols[i], 0, aux_used[i]);
}
if (sym_hdr.ifdMax == 0)
last_aux_in_use = 0;
else
last_aux_in_use
= (file_desc[sym_hdr.ifdMax-1].iauxBase
+ file_desc[sym_hdr.ifdMax-1].caux - 1);
if (last_aux_in_use < sym_hdr.iauxMax-1)
{
printf ("\nGlobal auxiliary entries after last file:\n");
for (i = last_aux_in_use; i < sym_hdr.iauxMax; i++)
print_aux (aux_symbols[i], i - last_aux_in_use, aux_used[i]);
}
}
/*
* Print the information for each file.
*/
for (i = 0; i < sym_hdr.ifdMax; i++)
print_file_desc (&file_desc[i], i);
/*
* Print the external symbols.
*/
want_scope = 0; /* scope info is meaning for extern symbols */
printf ("\nThere are %lu external symbols, starting at %lu\n",
(ulong) sym_hdr.iextMax,
(ulong) sym_hdr.cbExtOffset);
for(i = 0; i < sym_hdr.iextMax; i++)
print_symbol (&e_symbols[i].asym, i, e_strings,
aux_symbols + file_desc[e_symbols[i].ifd].iauxBase,
e_symbols[i].ifd,
&file_desc[e_symbols[i].ifd]);
/*
* Print unused aux symbols now.
*/
if (want_aux)
{
int first_time = 1;
for (i = 0; i < sym_hdr.iauxMax; i++)
{
if (! aux_used[i])
{
if (first_time)
{
printf ("\nThe following auxiliary table entries were unused:\n\n");
first_time = 0;
}
printf (" #%-5d %11ld 0x%08lx %s\n",
i,
(long) aux_symbols[i].isym,
(long) aux_symbols[i].isym,
type_to_string (aux_symbols, i, (FDR *) 0));
}
}
}
return 0;
}
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