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Add support for a .secrel32 x86 reloc to allow DWARF" debug information to used 

with COFF based x86 ports.
This commit is contained in:
Nick Clifton 2004-04-20 12:17:16 +00:00
parent b4781d441c
commit 6482c264f4
19 changed files with 426 additions and 0 deletions
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9
bfd/ChangeLog
View File

@ -1,3 +1,12 @@
2004-04-20 DJ Delorie <dj@redhat.com>
* reloc.c: Add BFD_RELOC_32_SECREL.
* bfd-in2.h: Regenerate.
* libbfd.h: Likewise.
* coff-i386.c (howto_table) [COFF_WITH_PE]: Add R_SECREL32.
(coff_i386_rtype_to_howto) [COFF_WITH_PE]: Handle it.
(coff_i386_reloc_type_lookup) [COFF_WITH_PE]: Likewise.
2004-04-19 Jakub Jelinek <jakub@redhat.com>
* elf32-sparc.c (elf32_sparc_relocate_section): Handle

3
bfd/bfd-in2.h
View File

@ -2027,6 +2027,9 @@ The 24-bit relocation is used in some Intel 960 configurations. */
BFD_RELOC_12_PCREL,
BFD_RELOC_8_PCREL,
/* Section relative relocations. Some targets need this for DWARF2. */
BFD_RELOC_32_SECREL,
/* For ELF. */
BFD_RELOC_32_GOT_PCREL,
BFD_RELOC_16_GOT_PCREL,

45
bfd/coff-i386.c
View File

@ -234,7 +234,24 @@ static reloc_howto_type howto_table[] =
EMPTY_HOWTO (010),
EMPTY_HOWTO (011),
EMPTY_HOWTO (012),
#ifdef COFF_WITH_PE
/* 32-bit longword section relative relocation (013). */
HOWTO (R_SECREL32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
coff_i386_reloc, /* special_function */
"secrel32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
TRUE), /* pcrel_offset */
#else
EMPTY_HOWTO (013),
#endif
EMPTY_HOWTO (014),
EMPTY_HOWTO (015),
EMPTY_HOWTO (016),
@ -497,6 +514,30 @@ coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
{
*addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
}
if (rel->r_type == R_SECREL32)
{
bfd_vma osect_vma;
if (h && (h->type == bfd_link_hash_defined
|| h->type == bfd_link_hash_defweak))
osect_vma = h->root.u.def.section->output_section->vma;
else
{
asection *sec;
int i;
/* Sigh, the only way to get the section to offset against
is to find it the hard way. */
for (sec = abfd->sections, i = 1; i < sym->n_scnum; i++)
sec = sec->next;
osect_vma = sec->output_section->vma;
}
*addendp -= osect_vma;
}
#endif
return howto;
@ -525,6 +566,10 @@ coff_i386_reloc_type_lookup (abfd, code)
return howto_table + R_RELBYTE;
case BFD_RELOC_8_PCREL:
return howto_table + R_PCRBYTE;
#ifdef COFF_WITH_PE
case BFD_RELOC_32_SECREL:
return howto_table + R_SECREL32;
#endif
default:
BFD_FAIL ();
return 0;

1
bfd/libbfd.h
View File

@ -699,6 +699,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
"BFD_RELOC_16_PCREL",
"BFD_RELOC_12_PCREL",
"BFD_RELOC_8_PCREL",
"BFD_RELOC_32_SECREL",
"BFD_RELOC_32_GOT_PCREL",
"BFD_RELOC_16_GOT_PCREL",
"BFD_RELOC_8_GOT_PCREL",

5
bfd/reloc.c
View File

@ -1646,6 +1646,11 @@ the section containing the relocation. It depends on the specific target.
The 24-bit relocation is used in some Intel 960 configurations.
ENUM
BFD_RELOC_32_SECREL
ENUMDOC
Section relative relocations. Some targets need this for DWARF2.
ENUM
BFD_RELOC_32_GOT_PCREL
ENUMX

9
gas/ChangeLog
View File

@ -1,3 +1,12 @@
2004-04-20 DJ Delorie <dj@redhat.com>
* config/tc-i386.h [TE_PE] (TC_CONS_FIX_NEW): Define.
* config/tc-i386.c (md_pseudo_table) [TE_PE]: Add "secrel32".
[TE_PE] (O_secrel): Define.
[TE_PE] (x86_pe_cons_fix_new): New.
[TE_PE] (pe_directive_secrel): Likewise.
(tc_gen_reloc) [TE_PE]: Support BFD_RELOC_32_SECREL.
2004-04-19 Eric Christopher <echristo@redhat.com>
* config/tc-mips.c (mips_dwarf2_addr_size): Revert part

53
gas/config/tc-i386.c
View File

@ -76,6 +76,9 @@ static void set_code_flag PARAMS ((int));
static void set_16bit_gcc_code_flag PARAMS ((int));
static void set_intel_syntax PARAMS ((int));
static void set_cpu_arch PARAMS ((int));
#ifdef TE_PE
static void pe_directive_secrel PARAMS ((int));
#endif
static char *output_invalid PARAMS ((int c));
static int i386_operand PARAMS ((char *operand_string));
static int i386_intel_operand PARAMS ((char *operand_string, int got_a_float));
@ -444,6 +447,9 @@ const pseudo_typeS md_pseudo_table[] =
{"att_syntax", set_intel_syntax, 0},
{"file", (void (*) PARAMS ((int))) dwarf2_directive_file, 0},
{"loc", dwarf2_directive_loc, 0},
#ifdef TE_PE
{"secrel32", pe_directive_secrel, 0},
#endif
{0, 0, 0}
};
@ -3638,6 +3644,50 @@ x86_cons (exp, size)
}
#endif
#ifdef TE_PE
#define O_secrel (O_max + 1)
void
x86_pe_cons_fix_new (frag, off, len, exp)
fragS *frag;
unsigned int off;
unsigned int len;
expressionS *exp;
{
enum bfd_reloc_code_real r = reloc (len, 0, 0, NO_RELOC);
if (exp->X_op == O_secrel)
{
exp->X_op = O_symbol;
r = BFD_RELOC_32_SECREL;
}
fix_new_exp (frag, off, len, exp, 0, r);
}
static void
pe_directive_secrel (dummy)
int dummy ATTRIBUTE_UNUSED;
{
expressionS exp;
do
{
expression (&exp);
if (exp.X_op == O_symbol)
exp.X_op = O_secrel;
emit_expr (&exp, 4);
}
while (*input_line_pointer++ == ',');
input_line_pointer--;
demand_empty_rest_of_line ();
}
#endif
static int i386_immediate PARAMS ((char *));
static int
@ -5165,6 +5215,9 @@ tc_gen_reloc (section, fixp)
case BFD_RELOC_RVA:
case BFD_RELOC_VTABLE_ENTRY:
case BFD_RELOC_VTABLE_INHERIT:
#ifdef TE_PE
case BFD_RELOC_32_SECREL:
#endif
code = fixp->fx_r_type;
break;
default:

6
gas/config/tc-i386.h
View File

@ -408,6 +408,12 @@ extern void x86_cons_fix_new
PARAMS ((fragS *, unsigned int, unsigned int, expressionS *));
#endif
#ifdef TE_PE
#define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) x86_pe_cons_fix_new(FRAG, OFF, LEN, EXP)
extern void x86_pe_cons_fix_new
PARAMS ((fragS *, unsigned int, unsigned int, expressionS *));
#endif
#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
#define NO_RELOC BFD_RELOC_NONE

7
gas/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2004-04-20 Brian Ford <ford@vss.fsi.com>
DJ Delorie <dj@redhat.com>
* gas/i386/secrel.s: New test for .secrel32.
* gas/i386/secrel.d: Likewise.
* gas/i386/i386.exp: Call it for PE targets.
2004-04-19 Jakub Jelinek <jakub@redhat.com>
* gas/cfi/cfi-sparc64-1.d: Update.

7
gas/testsuite/gas/i386/i386.exp
View File

@ -88,6 +88,13 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]]
run_dump_test "tlsnopic"
}
# This is a PE specific test.
if { [istarget "*-*-cygwin*"] || [istarget "*-*-pe"]
|| [istarget "*-*-mingw*"]
} then {
run_dump_test "secrel"
}
set ASFLAGS "$old_ASFLAGS"
}

43
gas/testsuite/gas/i386/secrel.d Normal file
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@ -0,0 +1,43 @@
#objdump: -rs
#name: i386 secrel reloc
.*: +file format pe-i386
RELOCATION RECORDS FOR \[\.data\]:
OFFSET TYPE VALUE
00000024 secrel32 \.text
00000029 secrel32 \.text
0000002e secrel32 \.text
00000033 secrel32 \.text
00000044 secrel32 \.data
00000049 secrel32 \.data
0000004e secrel32 \.data
00000053 secrel32 \.data
00000064 secrel32 \.rdata
00000069 secrel32 \.rdata
0000006e secrel32 \.rdata
00000073 secrel32 \.rdata
00000084 secrel32 ext24
00000089 secrel32 ext2d
0000008e secrel32 ext36
00000093 secrel32 ext3f
Contents of section \.text:
0000 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
0010 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
Contents of section \.data:
0000 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
0010 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
0020 3e3e3e3e 04000000 110d0000 00111600 >>>>............
0030 0000111f 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
0040 3e3e3e3e 04000000 110d0000 00111600 >>>>............
0050 0000111f 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
0060 3e3e3e3e 04000000 110d0000 00111600 >>>>............
0070 0000111f 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
0080 3e3e3e3e 00000000 11000000 00110000 >>>>............
0090 00001100 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
Contents of section \.rdata:
0000 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
0010 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
0020 3e3e3e3e >>>>

77
gas/testsuite/gas/i386/secrel.s Normal file
View File

@ -0,0 +1,77 @@
.text
.ascii ">>>>"
pre04: .ascii "<<<<"
.ascii ">>>>>"
pre0d: .ascii "<<<"
.ascii ">>>>>>"
pre16: .ascii "<<"
.ascii ">>>>>>>"
pre1f: .ascii "<"
.data
.ascii ">>>>"
sam04: .ascii "<<<<"
.ascii ">>>>>"
sam0d: .ascii "<<<"
.ascii ">>>>>>"
sam16: .ascii "<<"
.ascii ">>>>>>>"
sam1f: .ascii "<"
.ascii ">>>>"
.secrel32 pre04
.byte 0x11
.secrel32 pre0d
.byte 0x11
.secrel32 pre16
.byte 0x11
.secrel32 pre1f
.byte 0x11
.ascii "<<<<<<<<"
.ascii ">>>>"
.secrel32 sam04
.byte 0x11
.secrel32 sam0d
.byte 0x11
.secrel32 sam16
.byte 0x11
.secrel32 sam1f
.byte 0x11
.ascii "<<<<<<<<"
.ascii ">>>>"
.secrel32 nex04
.byte 0x11
.secrel32 nex0d
.byte 0x11
.secrel32 nex16
.byte 0x11
.secrel32 nex1f
.byte 0x11
.ascii "<<<<<<<<"
.ascii ">>>>"
.secrel32 ext24
.byte 0x11
.secrel32 ext2d
.byte 0x11
.secrel32 ext36
.byte 0x11
.secrel32 ext3f
.byte 0x11
.ascii "<<<<<<<<"
.section .rdata
.ascii ">>>>"
nex04: .ascii "<<<<"
.ascii ">>>>>"
nex0d: .ascii "<<<"
.ascii ">>>>>>"
nex16: .ascii "<<"
.ascii ">>>>>>>"
nex1f: .ascii "<"
.ascii ">>>>"

3
include/coff/ChangeLog
View File

@ -1,3 +1,6 @@
2004-04-20 DJ Delorie <dj@redhat.com>
* internal.h (R_SECREL32): Add.
For older changes see ChangeLog-9103

1
include/coff/internal.h
View File

@ -607,6 +607,7 @@ struct internal_reloc
#define R_REL24 5
#define R_DIR32 6
#define R_IMAGEBASE 7
#define R_SECREL32 11
#define R_RELBYTE 15
#define R_RELWORD 16
#define R_RELLONG 17

8
ld/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2004-04-14 Brian Ford <ford@vss.fsi.com>
DJ Delorie <dj@redhat.com>
* ld-pe/pe.exp: New, tests for i?86 PE.
* ld-pe/secrel1.s: New, test R_SECREL32 reloc.
* ld-pe/secrel2.s: Likewise.
* ld-pe/secrel.d: Likewise.
2004-04-19 Jakub Jelinek <jakub@redhat.com>
* ld-elfvsb/elfvsb.exp: XFAIL some tests on sparc64.

31
ld/testsuite/ld-pe/pe.exp Normal file
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@ -0,0 +1,31 @@
# Expect script for export table in executables tests
# Copyright 2004
# Free Software Foundation, Inc.
#
# This file 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 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# This test can only be run on i386 PE/COFF platforms.
if { ![istarget i*86-*-cygwin*] && ![istarget i*86-*-pe]
&& ![istarget i*86-*-mingw*] } {
return
}
set pe_tests {
{".secrel32" "" "" {secrel1.s secrel2.s}
{{objdump -s secrel.d}} "secrel.x"}
}
run_ld_link_tests $pe_tests

27
ld/testsuite/ld-pe/secrel.d Normal file
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@ -0,0 +1,27 @@
tmpdir/secrel\.x: file format pei-i386
Contents of section \.text:
401000 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
401010 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
401020 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
401030 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
401040 ........ ........ ........ ........ ................
Contents of section \.data:
402000 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
402010 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
402020 3e3e3e3e 04000000 110d0000 00111600 >>>>............
402030 0000111f 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
402040 3e3e3e3e 04000000 110d0000 00111600 >>>>............
402050 0000111f 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
402060 3e3e3e3e 04000000 110d0000 00111600 >>>>............
402070 0000111f 00000011 3c3c3c3c 3c3c3c3c ........<<<<<<<<
402080 3e3e3e3e 24000000 112d0000 00113600 >>>>\$....-....6.
402090 0000113f 00000011 3c3c3c3c 3c3c3c3c ...\?....<<<<<<<<
Contents of section \.rdata:
403000 3e3e3e3e 3c3c3c3c 3e3e3e3e 3e3c3c3c >>>><<<<>>>>><<<
403010 3e3e3e3e 3e3e3c3c 3e3e3e3e 3e3e3e3c >>>>>><<>>>>>>><
403020 3e3e3e3e >>>>
Contents of section \.idata:
404000 00000000 00000000 00000000 00000000 ................
404010 00000000 ....

77
ld/testsuite/ld-pe/secrel1.s Normal file
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@ -0,0 +1,77 @@
.text
.ascii ">>>>"
pre04: .ascii "<<<<"
.ascii ">>>>>"
pre0d: .ascii "<<<"
.ascii ">>>>>>"
pre16: .ascii "<<"
.ascii ">>>>>>>"
pre1f: .ascii "<"
.data
.ascii ">>>>"
sam04: .ascii "<<<<"
.ascii ">>>>>"
sam0d: .ascii "<<<"
.ascii ">>>>>>"
sam16: .ascii "<<"
.ascii ">>>>>>>"
sam1f: .ascii "<"
.ascii ">>>>"
.secrel32 pre04
.byte 0x11
.secrel32 pre0d
.byte 0x11
.secrel32 pre16
.byte 0x11
.secrel32 pre1f
.byte 0x11
.ascii "<<<<<<<<"
.ascii ">>>>"
.secrel32 sam04
.byte 0x11
.secrel32 sam0d
.byte 0x11
.secrel32 sam16
.byte 0x11
.secrel32 sam1f
.byte 0x11
.ascii "<<<<<<<<"
.ascii ">>>>"
.secrel32 nex04
.byte 0x11
.secrel32 nex0d
.byte 0x11
.secrel32 nex16
.byte 0x11
.secrel32 nex1f
.byte 0x11
.ascii "<<<<<<<<"
.ascii ">>>>"
.secrel32 ext24
.byte 0x11
.secrel32 ext2d
.byte 0x11
.secrel32 ext36
.byte 0x11
.secrel32 ext3f
.byte 0x11
.ascii "<<<<<<<<"
.section .rdata
.ascii ">>>>"
nex04: .ascii "<<<<"
.ascii ">>>>>"
nex0d: .ascii "<<<"
.ascii ">>>>>>"
nex16: .ascii "<<"
.ascii ">>>>>>>"
nex1f: .ascii "<"
.ascii ">>>>"

14
ld/testsuite/ld-pe/secrel2.s Normal file
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@ -0,0 +1,14 @@
.text
.ascii ">>>>"
.global ext24
ext24: .ascii "<<<<"
.ascii ">>>>>"
.global ext2d
ext2d: .ascii "<<<"
.ascii ">>>>>>"
.global ext36
ext36: .ascii "<<"
.ascii ">>>>>>>"
.global ext3f
ext3f: .ascii "<"