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Add support for generating DWARF2 debug sections in the x86 PE port

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This commit is contained in:
Nick Clifton 2004-04-29 16:40:20 +00:00
parent e63bbc887e
commit 8a7140c38f
9 changed files with 152 additions and 28 deletions
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14
bfd/ChangeLog
View File

@ -1,3 +1,17 @@
2004-04-29 Brian Ford <ford@vss.fsi.com>
* bfd.c (bfd_get_sign_extend_vma): Add pe[i]-i386 case to DJGPP hack.
* coffcode.h (DOT_DEBUG, GNU_LINKONCE_WI): Define.
[!COFF_WITH_PE] (sec_to_styp_flags, styp_to_sec_flags): Use them.
(coff_compute_section_file_positions) [RS6000COFF_C]: Likewise.
[COFF_WITH_PE] (sec_to_styp_flags): Handle DWARF 2/3 .debug* and
.gnu.linkonce.wi. sections.
* pe-i386.c (COFF_SUPPORT_GNU_LINKONCE): Define.
(COFF_SECTION_ALIGNMENT_ENTRIES): Add entries for .debug and
.gnu.linkonce.wi..
* pei-i386.c (COFF_SUPPORT_GNU_LINKONCE): Likewise.
(COFF_SECTION_ALIGNMENT_ENTRIES): Likewise.
2004-04-28 Chris Demetriou <cgd@broadcom.com>
* reloc.c: Remove BFD_RELOC_PCREL_HI16_S and BFD_RELOC_PCREL_LO16.

8
bfd/bfd.c
View File

@ -1,6 +1,6 @@
/* Generic BFD library interface and support routines.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003
2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Written by Cygnus Support.
@ -765,12 +765,14 @@ bfd_get_sign_extend_vma (bfd *abfd)
name = bfd_get_target (abfd);
/* Return a proper value for DJGPP COFF (an x86 COFF variant).
/* Return a proper value for DJGPP & PE COFF (x86 COFF variants).
This function is required for DWARF2 support, but there is
no place to store this information in the COFF back end.
Should enough other COFF targets add support for DWARF2,
a place will have to be found. Until then, this hack will do. */
if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0)
if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0
|| strcmp (name, "pe-i386") == 0
|| strcmp (name, "pei-i386") == 0)
return 1;
bfd_set_error (bfd_error_wrong_format);

22
bfd/coffcode.h
View File

@ -1,6 +1,6 @@
/* Support for the generic parts of most COFF variants, for BFD.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003
2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Written by Cygnus Support.
@ -309,6 +309,9 @@ CODE_FRAGMENT
#define STRING_SIZE_SIZE (4)
#define DOT_DEBUG ".debug"
#define GNU_LINKONCE_WI ".gnu.linkonce.wi."
static long sec_to_styp_flags
PARAMS ((const char *, flagword));
static bfd_boolean styp_to_sec_flags
@ -428,7 +431,7 @@ sec_to_styp_flags (sec_name, sec_flags)
styp_flags = STYP_LIT;
#endif /* _LIT */
}
else if (!strncmp (sec_name, ".debug", 6))
else if (!strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1))
{
/* Handle the XCOFF debug section and DWARF2 debug sections. */
if (!sec_name[6])
@ -441,7 +444,7 @@ sec_to_styp_flags (sec_name, sec_flags)
styp_flags = STYP_DEBUG_INFO;
}
#ifdef COFF_LONG_SECTION_NAMES
else if (!strncmp (sec_name, ".gnu.linkonce.wi.", 17))
else if (!strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1))
{
styp_flags = STYP_DEBUG_INFO;
}
@ -518,7 +521,7 @@ sec_to_styp_flags (sec_name, sec_flags)
static long
sec_to_styp_flags (sec_name, sec_flags)
const char *sec_name ATTRIBUTE_UNUSED;
const char *sec_name;
flagword sec_flags;
{
long styp_flags = 0;
@ -531,6 +534,11 @@ sec_to_styp_flags (sec_name, sec_flags)
PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
but there are more IMAGE_SCN_* flags. */
/* FIXME: There is no gas syntax to specify the debug section flag. */
if (strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
|| strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0)
sec_flags = SEC_READONLY | SEC_DEBUGGING;
/* skip LOAD */
/* READONLY later */
/* skip RELOC */
@ -675,12 +683,12 @@ styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
#endif
sec_flags |= SEC_ALLOC;
}
else if (strncmp (name, ".debug", 6) == 0
else if (strncmp (name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
#ifdef _COMMENT
|| strcmp (name, _COMMENT) == 0
#endif
#ifdef COFF_LONG_SECTION_NAMES
|| strncmp (name, ".gnu.linkonce.wi.", 17) == 0
|| strncmp (name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0
#endif
|| strncmp (name, ".stab", 5) == 0)
{
@ -3004,7 +3012,7 @@ coff_compute_section_file_positions (abfd)
{
asection *dsec;
dsec = bfd_make_section_old_way (abfd, ".debug");
dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
if (dsec == NULL)
abort ();
dsec->_raw_size = sz;

17
bfd/pe-i386.c
View File

@ -1,5 +1,5 @@
/* BFD back-end for Intel 386 PECOFF files.
Copyright 1995, 1996, 1999, 2001, 2002 Free Software Foundation, Inc.
Copyright 1995, 1996, 1999, 2001, 2002, 2004 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@ -20,12 +20,13 @@
#include "bfd.h"
#include "sysdep.h"
#define TARGET_SYM i386pe_vec
#define TARGET_NAME "pe-i386"
#define TARGET_SYM i386pe_vec
#define TARGET_NAME "pe-i386"
#define COFF_WITH_PE
#define PCRELOFFSET TRUE
#define TARGET_UNDERSCORE '_'
#define PCRELOFFSET TRUE
#define TARGET_UNDERSCORE '_'
#define COFF_LONG_SECTION_NAMES
#define COFF_SUPPORT_GNU_LINKONCE
#define COFF_LONG_FILENAMES
#define COFF_SECTION_ALIGNMENT_ENTRIES \
@ -38,6 +39,10 @@
{ COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
{ COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
#include "coff-i386.c"

17
bfd/pei-i386.c
View File

@ -1,5 +1,5 @@
/* BFD back-end for Intel 386 PE IMAGE COFF files.
Copyright 1995, 1996, 1999, 2002 Free Software Foundation, Inc.
Copyright 1995, 1996, 1999, 2002, 2004 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@ -20,13 +20,14 @@
#include "bfd.h"
#include "sysdep.h"
#define TARGET_SYM i386pei_vec
#define TARGET_NAME "pei-i386"
#define TARGET_SYM i386pei_vec
#define TARGET_NAME "pei-i386"
#define COFF_IMAGE_WITH_PE
#define COFF_WITH_PE
#define PCRELOFFSET TRUE
#define TARGET_UNDERSCORE '_'
#define PCRELOFFSET TRUE
#define TARGET_UNDERSCORE '_'
#define COFF_LONG_SECTION_NAMES
#define COFF_SUPPORT_GNU_LINKONCE
#define COFF_LONG_FILENAMES
#define COFF_SECTION_ALIGNMENT_ENTRIES \
@ -39,6 +40,10 @@
{ COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
{ COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
#include "coff-i386.c"

4
gas/ChangeLog
View File

@ -1,3 +1,7 @@
2004-04-29 Brian Ford <ford@vss.fsi.com>
* dwarf2dbg.c (dwarf2_finish): Add SEC_DEBUGGING to section flags.
2004-04-28 Chris Demetriou <cgd@broadcom.com>
* config/tc-mips.c (HAVE_32BIT_ADDRESSES, append_insn, macro_build)

11
gas/dwarf2dbg.c
View File

@ -1371,7 +1371,7 @@ dwarf2_finish (void)
/* Create and switch to the line number section. */
line_seg = subseg_new (".debug_line", 0);
bfd_set_section_flags (stdoutput, line_seg, SEC_READONLY);
bfd_set_section_flags (stdoutput, line_seg, SEC_READONLY | SEC_DEBUGGING);
/* For each subsection, chain the debug entries together. */
for (s = all_segs; s; s = s->next)
@ -1400,9 +1400,12 @@ dwarf2_finish (void)
abbrev_seg = subseg_new (".debug_abbrev", 0);
aranges_seg = subseg_new (".debug_aranges", 0);
bfd_set_section_flags (stdoutput, info_seg, SEC_READONLY);
bfd_set_section_flags (stdoutput, abbrev_seg, SEC_READONLY);
bfd_set_section_flags (stdoutput, aranges_seg, SEC_READONLY);
bfd_set_section_flags (stdoutput, info_seg,
SEC_READONLY | SEC_DEBUGGING);
bfd_set_section_flags (stdoutput, abbrev_seg,
SEC_READONLY | SEC_DEBUGGING);
bfd_set_section_flags (stdoutput, aranges_seg,
SEC_READONLY | SEC_DEBUGGING);
record_alignment (aranges_seg, ffs (2 * sizeof_address) - 1);

5
ld/ChangeLog
View File

@ -1,3 +1,8 @@
2004-04-29 Brian Ford <ford@vss.fsi.com>
* scripttempl/pe.sc: Handle .debug* and .gnu.linkonce.wi.* sections
for DWARF 2/3. Update stab section's syntax.
2004-04-29 Alan Modra <amodra@bigpond.net.au>
* pe-dll.c: Revert changes accidentally committed 2004-03-08.

82
ld/scripttempl/pe.sc
View File

@ -159,13 +159,91 @@ SECTIONS
.stab ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
[ .stab ]
*(.stab)
}
.stabstr ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
[ .stabstr ]
*(.stabstr)
}
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section. Unlike other targets that fake this by putting the
section VMA at 0, the PE format will not allow it. */
/* DWARF 1.1 and DWARF 2. */
.debug_aranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_aranges)
}
.debug_pubnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_pubnames)
}
/* DWARF 2. */
.debug_info ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_info) *(.gnu.linkonce.wi.*)
}
.debug_abbrev ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_abbrev)
}
.debug_line ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_line)
}
.debug_frame ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_frame)
}
.debug_str ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_str)
}
.debug_loc ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_loc)
}
.debug_macinfo ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_macinfo)
}
/* SGI/MIPS DWARF 2 extensions. */
.debug_weaknames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_weaknames)
}
.debug_funcnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_funcnames)
}
.debug_typenames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_typenames)
}
.debug_varnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_varnames)
}
/* DWARF 3. */
.debug_ranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
{
*(.debug_ranges)
}
}
EOF