pool/binutils
SHA256
2
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
factory
binutils/binutils-revert-plt32-in-branches.diff
Michael Matz 6d24c45b6e Adjust the patches only applied on old codestreams. 
- Adjusted binutils-revert-hlasm-insns.diff,
  binutils-revert-plt32-in-branches.diff and binutils-revert-rela.diff
  for upstream changes.
- Removed binutils-use-less-memory.diff, binutils-old-makeinfo.diff
  and riscv-relro.patch (all upstreamed).

OBS-URL: https://build.opensuse.org/package/show/devel:gcc/binutils?expand=0&rev=459
2024-01-30 17:07:36 +00:00

573 lines
24 KiB
Diff
Raw Permalink Blame History

This reverts the below commit to not generate PLT32 relocs
on branches by default. Used for old distros to not have to
update several packages/tools that can't handle them. I.e.
a compatibility patch.
The patch isn't exactly the reverse of commit bd7ab16b
because commit 83924b38 later moved the checking code
around somewhat.
The changes in nop-[345].d and pr22842b.S are followups to
not break the testsuite because of this revert.
As are the changes to x86-64-branch-2.d and x86-64-branch-3.d.
commit bd7ab16b4537788ad53521c45469a1bdae84ad4a
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Feb 13 07:34:22 2018 -0800
x86-64: Generate branch with PLT32 relocation
Since there is no need to prepare for PLT branch on x86-64, generate
R_X86_64_PLT32, instead of R_X86_64_PC32, if possible, which can be
used as a marker for 32-bit PC-relative branches.
To compile Linux kernel, this patch:
From: "H.J. Lu" <hjl.tools@gmail.com>
Subject: [PATCH] x86: Treat R_X86_64_PLT32 as R_X86_64_PC32
On i386, there are 2 types of PLTs, PIC and non-PIC. PIE and shared
objects must use PIC PLT. To use PIC PLT, you need to load
_GLOBAL_OFFSET_TABLE_ into EBX first. There is no need for that on
x86-64 since x86-64 uses PC-relative PLT.
On x86-64, for 32-bit PC-relative branches, we can generate PLT32
relocation, instead of PC32 relocation, which can also be used as
a marker for 32-bit PC-relative branches. Linker can always reduce
PLT32 relocation to PC32 if function is defined locally. Local
functions should use PC32 relocation. As far as Linux kernel is
concerned, R_X86_64_PLT32 can be treated the same as R_X86_64_PC32
since Linux kernel doesn't use PLT.
is needed. It is available on hjl/plt32/master branch at
https://github.com/hjl-tools/linux
bfd/
PR gas/22791
* elf64-x86-64.c (is_32bit_relative_branch): Removed.
(elf_x86_64_relocate_section): Check PIC relocations in PIE.
Remove is_32bit_relative_branch usage. Disallow PC32 reloc
against protected function in shared object.
gas/
PR gas/22791
* config/tc-i386.c (need_plt32_p): New function.
(output_jump): Generate BFD_RELOC_X86_64_PLT32 if possible.
(md_estimate_size_before_relax): Likewise.
* testsuite/gas/i386/reloc64.d: Updated.
* testsuite/gas/i386/x86-64-jump.d: Likewise.
* testsuite/gas/i386/x86-64-mpx-branch-1.d: Likewise.
* testsuite/gas/i386/x86-64-mpx-branch-2.d: Likewise.
* testsuite/gas/i386/x86-64-relax-2.d: Likewise.
* testsuite/gas/i386/x86-64-relax-3.d: Likewise.
* testsuite/gas/i386/ilp32/reloc64.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-branch.d: Likewise.
ld/
PR gas/22791
* testsuite/ld-x86-64/mpx1c.rd: Updated.
* testsuite/ld-x86-64/pr22791-1.err: New file.
* testsuite/ld-x86-64/pr22791-1a.c: Likewise.
* testsuite/ld-x86-64/pr22791-1b.s: Likewise.
* testsuite/ld-x86-64/pr22791-2.rd: Likewise.
* testsuite/ld-x86-64/pr22791-2a.s: Likewise.
* testsuite/ld-x86-64/pr22791-2b.c: Likewise.
* testsuite/ld-x86-64/pr22791-2c.s: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run PR ld/22791 tests.
Index: binutils-2.42/bfd/elf64-x86-64.c
===================================================================
--- binutils-2.42.orig/bfd/elf64-x86-64.c 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/bfd/elf64-x86-64.c 2024-01-30 16:57:58.483994137 +0100
@@ -1981,6 +1981,24 @@ elf_x86_64_convert_load_reloc (bfd *abfd
return true;
}
+/* Is the instruction before OFFSET in CONTENTS a 32bit relative
+ branch? */
+
+static bool
+is_32bit_relative_branch (bfd_byte *contents, bfd_vma offset)
+{
+ /* Opcode Instruction
+ 0xe8 call
+ 0xe9 jump
+ 0x0f 0x8x conditional jump */
+ return ((offset > 0
+ && (contents [offset - 1] == 0xe8
+ || contents [offset - 1] == 0xe9))
+ || (offset > 1
+ && contents [offset - 2] == 0x0f
+ && (contents [offset - 1] & 0xf0) == 0x80));
+}
+
/* Look through the relocs for a section during the first phase, and
calculate needed space in the global offset table, and procedure
linkage table. */
@@ -3337,9 +3355,6 @@ elf_x86_64_relocate_section (bfd *output
&& (eh == NULL
|| !UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
eh)))
- || (bfd_link_pie (info)
- && !SYMBOL_DEFINED_NON_SHARED_P (h)
- && h->def_dynamic)
|| (no_copyreloc_p
&& h->def_dynamic
&& !(h->root.u.def.section->flags & SEC_CODE))))
@@ -3348,20 +3363,25 @@ elf_x86_64_relocate_section (bfd *output
|| bfd_link_dll (info)))
{
bool fail = false;
+ bool branch
+ = ((r_type == R_X86_64_PC32
+ || r_type == R_X86_64_PC32_BND)
+ && is_32bit_relative_branch (contents, rel->r_offset));
+
if (SYMBOL_REFERENCES_LOCAL_P (info, h))
{
/* Symbol is referenced locally. Make sure it is
- defined locally. */
- fail = !SYMBOL_DEFINED_NON_SHARED_P (h);
+ defined locally or for a branch. */
+ fail = !SYMBOL_DEFINED_NON_SHARED_P (h) && !branch;
}
else if (bfd_link_pie (info))
{
/* We can only use PC-relative relocations in PIE
- from non-code sections. */
+ from non-code sections or branches. */
if (h->root.type == bfd_link_hash_undefweak
|| (h->type == STT_FUNC
&& (sec->flags & SEC_CODE) != 0))
- fail = true;
+ fail = !branch;
}
else if (no_copyreloc_p || bfd_link_dll (info))
{
@@ -3370,9 +3390,10 @@ elf_x86_64_relocate_section (bfd *output
relocations against default and protected
symbols since address of protected function
and location of protected data may not be in
- the shared object. */
+ the shared object. We do allow branch to symbol
+ with non-default visibility. */
fail = (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || ELF_ST_VISIBILITY (h->other) == STV_PROTECTED);
+ || !branch);
}
if (fail)
Index: binutils-2.42/gas/config/tc-i386.c
===================================================================
--- binutils-2.42.orig/gas/config/tc-i386.c 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/config/tc-i386.c 2024-01-30 16:58:57.504959847 +0100
@@ -10699,55 +10699,12 @@ output_branch (void)
frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p);
}
-#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
-/* Return TRUE iff PLT32 relocation should be used for branching to
- symbol S. */
-
-static bool
-need_plt32_p (symbolS *s)
-{
- /* PLT32 relocation is ELF only. */
- if (!IS_ELF)
- return false;
-
-#ifdef TE_SOLARIS
- /* Don't emit PLT32 relocation on Solaris: neither native linker nor
- krtld support it. */
- return false;
-#endif
-
- /* Since there is no need to prepare for PLT branch on x86-64, we
- can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can
- be used as a marker for 32-bit PC-relative branches. */
- if (!object_64bit)
- return false;
-
- if (s == NULL)
- return false;
-
- /* Weak or undefined symbol need PLT32 relocation. */
- if (S_IS_WEAK (s) || !S_IS_DEFINED (s))
- return true;
-
- /* Non-global symbol doesn't need PLT32 relocation. */
- if (! S_IS_EXTERNAL (s))
- return false;
-
- /* Other global symbols need PLT32 relocation. NB: Symbol with
- non-default visibilities are treated as normal global symbol
- so that PLT32 relocation can be used as a marker for 32-bit
- PC-relative branches. It is useful for linker relaxation. */
- return true;
-}
-#endif
-
static void
output_jump (void)
{
char *p;
int size;
fixS *fixP;
- bfd_reloc_code_real_type jump_reloc = i.reloc[0];
if (i.tm.opcode_modifier.jump == JUMP_BYTE)
{
@@ -10821,17 +10778,8 @@ output_jump (void)
abort ();
}
-#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
- if (flag_code == CODE_64BIT && size == 4
- && jump_reloc == NO_RELOC && i.op[0].disps->X_add_number == 0
- && need_plt32_p (i.op[0].disps->X_add_symbol))
- jump_reloc = BFD_RELOC_X86_64_PLT32;
-#endif
-
- jump_reloc = reloc (size, 1, 1, jump_reloc);
-
fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size,
- i.op[0].disps, 1, jump_reloc);
+ i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0]));
/* All jumps handled here are signed, but don't unconditionally use a
signed limit check for 32 and 16 bit jumps as we want to allow wrap
@@ -15083,12 +15031,6 @@ md_estimate_size_before_relax (fragS *fr
reloc_type = (enum bfd_reloc_code_real) fragP->fr_var;
else if (size == 2)
reloc_type = BFD_RELOC_16_PCREL;
-#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
- else if (fragP->tc_frag_data.code == CODE_64BIT
- && fragP->fr_offset == 0
- && need_plt32_p (fragP->fr_symbol))
- reloc_type = BFD_RELOC_X86_64_PLT32;
-#endif
else
reloc_type = BFD_RELOC_32_PCREL;
Index: binutils-2.42/gas/testsuite/gas/i386/ilp32/reloc64.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/ilp32/reloc64.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/ilp32/reloc64.d 2024-01-30 16:57:58.487327524 +0100
@@ -17,7 +17,7 @@ Disassembly of section \.text:
.*[ ]+R_X86_64_PC8[ ]+xtrn\+0x0*1
.*[ ]+R_X86_64_PC32[ ]+xtrn-0x0*4
.*[ ]+R_X86_64_PC32[ ]+xtrn-0x0*4
-.*[ ]+R_X86_64_PLT32[ ]+xtrn-0x0*4
+.*[ ]+R_X86_64_PC32[ ]+xtrn-0x0*4
.*[ ]+R_X86_64_PC8[ ]+xtrn-0x0*1
.*[ ]+R_X86_64_GOT32[ ]+xtrn
.*[ ]+R_X86_64_GOT32[ ]+xtrn
Index: binutils-2.42/gas/testsuite/gas/i386/ilp32/x86-64-branch.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/ilp32/x86-64-branch.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/ilp32/x86-64-branch.d 2024-01-30 16:57:58.487327524 +0100
@@ -20,9 +20,9 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: 66 ff 20 data16 jmp \*\(%rax\)
[ ]*[a-f0-9]+: e8 00 00 00 00 call (0x)?1f <.*> 1b: R_X86_64_PC32 \*ABS\*\+0x10003c
[ ]*[a-f0-9]+: e9 00 00 00 00 jmp (0x)?24 <.*> 20: R_X86_64_PC32 \*ABS\*\+0x10003c
-[ ]*[a-f0-9]+: 66 e8 00 00 00 00 data16 call (0x)?2a <.*> 26: R_X86_64_PLT32 foo-0x4
-[ ]*[a-f0-9]+: 66 e9 00 00 00 00 data16 jmp (0x)?30 <.*> 2c: R_X86_64_PLT32 foo-0x4
-[ ]*[a-f0-9]+: 66 0f 82 00 00 00 00 data16 jb (0x)?37 <.*> 33: R_X86_64_PLT32 foo-0x4
+[ ]*[a-f0-9]+: 66 e8 00 00 00 00 data16 call (0x)?2a <.*> 26: R_X86_64_PC32 foo-0x4
+[ ]*[a-f0-9]+: 66 e9 00 00 00 00 data16 jmp (0x)?30 <.*> 2c: R_X86_64_PC32 foo-0x4
+[ ]*[a-f0-9]+: 66 0f 82 00 00 00 00 data16 jb (0x)?37 <.*> 33: R_X86_64_PC32 foo-0x4
[ ]*[a-f0-9]+: 66 c3 data16 ret
[ ]*[a-f0-9]+: 66 c2 08 00 data16 ret \$0x8
[ ]*[a-f0-9]+: 3e 74 03[ ]+je,pt +[0-9a-fx]+ <.*>
Index: binutils-2.42/gas/testsuite/gas/i386/reloc64.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/reloc64.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/reloc64.d 2024-01-30 16:57:58.487327524 +0100
@@ -20,7 +20,7 @@ Disassembly of section \.text:
.*[ ]+R_X86_64_PC8[ ]+xtrn\+0x0*1
.*[ ]+R_X86_64_PC32[ ]+xtrn-0x0*4
.*[ ]+R_X86_64_PC32[ ]+xtrn-0x0*4
-.*[ ]+R_X86_64_PLT32[ ]+xtrn-0x0*4
+.*[ ]+R_X86_64_PC32[ ]+xtrn-0x0*4
.*[ ]+R_X86_64_PC8[ ]+xtrn-0x0*1
.*[ ]+R_X86_64_GOT64[ ]+xtrn
.*[ ]+R_X86_64_GOT32[ ]+xtrn
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-branch-2.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-branch-2.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-branch-2.d 2024-01-30 16:57:58.487327524 +0100
@@ -9,12 +9,12 @@ Disassembly of section .text:
0+ <bar-0xb>:
[ ]*[a-f0-9]+: 66 e9 00 00 jmpw 4 <bar-0x7> 2: R_X86_64_PC16 foo-0x2
-[ ]*[a-f0-9]+: 66 48 e9 00 00 00 00 data16 rex\.W jmp b <bar> 7: R_X86_64_PLT32 foo-0x4
+[ ]*[a-f0-9]+: 66 48 e9 00 00 00 00 data16 rex\.W jmp b <bar> 7: R_X86_64_PC32 foo-0x4
0+b <bar>:
[ ]*[a-f0-9]+: 89 c3 mov %eax,%ebx
[ ]*[a-f0-9]+: 66 e8 00 00 callw 11 <bar\+0x6> f: R_X86_64_PC16 foo-0x2
-[ ]*[a-f0-9]+: 66 48 e8 00 00 00 00 data16 rex\.W call 18 <bar\+0xd> 14: R_X86_64_PLT32 foo-0x4
+[ ]*[a-f0-9]+: 66 48 e8 00 00 00 00 data16 rex\.W call 18 <bar\+0xd> 14: R_X86_64_PC32 foo-0x4
[ ]*[a-f0-9]+: 66 c3 retw
[ ]*[a-f0-9]+: 66 c2 08 00 retw \$0x8
#pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-jump.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-jump.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-jump.d 2024-01-30 16:57:58.487327524 +0100
@@ -9,7 +9,7 @@ Disassembly of section .text:
0+ <.text>:
[ ]*[a-f0-9]+: eb fe jmp (0x0|0 <.text>)
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 0x7 3: R_X86_64_PLT32 xxx-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 0x7 3: R_X86_64_PC32 xxx-0x4
[ ]*[a-f0-9]+: ff 24 25 00 00 00 00 jmp \*0x0 a: R_X86_64_32S xxx
[ ]*[a-f0-9]+: ff e7 jmp \*%rdi
[ ]*[a-f0-9]+: ff 27 jmp \*\(%rdi\)
@@ -18,7 +18,7 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: ff 2c 25 00 00 00 00 ljmp \*0x0 24: R_X86_64_32S xxx
[ ]*[a-f0-9]+: 66 ff 2c 25 00 00 00 00 ljmpw \*0x0 2c: R_X86_64_32S xxx
[ ]*[a-f0-9]+: e8 cb ff ff ff call 0x0
-[ ]*[a-f0-9]+: e8 00 00 00 00 call 0x3a 36: R_X86_64_PLT32 xxx-0x4
+[ ]*[a-f0-9]+: e8 00 00 00 00 call 0x3a 36: R_X86_64_PC32 xxx-0x4
[ ]*[a-f0-9]+: ff 14 25 00 00 00 00 call \*0x0 3d: R_X86_64_32S xxx
[ ]*[a-f0-9]+: ff d7 call \*%rdi
[ ]*[a-f0-9]+: ff 17 call \*\(%rdi\)
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-3.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-nop-3.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-3.d 2024-01-30 16:57:58.487327524 +0100
@@ -18,5 +18,5 @@ Disassembly of section .text:
Disassembly of section .altinstr_replacement:
0+ <.altinstr_replacement>:
- +[a-f0-9]+: e9 00 00 00 00 jmp 5 <_start\+0x5> 1: R_X86_64_PLT32 foo-0x4
+ +[a-f0-9]+: e9 00 00 00 00 jmp 5 <_start\+0x5> 1: R_X86_64_PC32 foo-0x4
#pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-4.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-nop-4.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-4.d 2024-01-30 16:57:58.487327524 +0100
@@ -21,5 +21,5 @@ Disassembly of section .altinstr_replace
+[a-f0-9]+: 89 c0 mov %eax,%eax
+[a-f0-9]+: 89 c0 mov %eax,%eax
+[a-f0-9]+: 89 c0 mov %eax,%eax
- +[a-f0-9]+: e9 00 00 00 00 jmp b <_start\+0xb> 7: R_X86_64_PLT32 foo-0x4
+ +[a-f0-9]+: e9 00 00 00 00 jmp b <_start\+0xb> 7: R_X86_64_PC32 foo-0x4
#pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-5.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-nop-5.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-5.d 2024-01-30 16:57:58.487327524 +0100
@@ -24,5 +24,5 @@ Disassembly of section .altinstr_replace
+[a-f0-9]+: 89 c0 mov %eax,%eax
+[a-f0-9]+: 89 c0 mov %eax,%eax
+[a-f0-9]+: 89 c0 mov %eax,%eax
- +[a-f0-9]+: e9 00 00 00 00 jmp d <_start\+0xd> 9: R_X86_64_PLT32 foo-0x4
+ +[a-f0-9]+: e9 00 00 00 00 jmp d <_start\+0xd> 9: R_X86_64_PC32 foo-0x4
#pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-2.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-relax-2.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-2.d 2024-01-30 16:57:58.487327524 +0100
@@ -11,12 +11,12 @@ Disassembly of section .text:
0+ <foo>:
[ ]*[a-f0-9]+: eb 24 jmp 26 <local>
[ ]*[a-f0-9]+: eb 1e jmp 22 <hidden_def>
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 9 <foo\+0x9> 5: R_X86_64_PLT32 global_def-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 9 <foo\+0x9> 5: R_X86_64_PC32 global_def-0x4
[ ]*[a-f0-9]+: e9 00 00 00 00 jmp e <foo\+0xe> a: R_X86_64_PLT32 global_def-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 13 <foo\+0x13> f: R_X86_64_PLT32 weak_def-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 18 <foo\+0x18> 14: R_X86_64_PLT32 weak_hidden_undef-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 1d <foo\+0x1d> 19: R_X86_64_PLT32 weak_hidden_def-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 22 <hidden_def> 1e: R_X86_64_PLT32 hidden_undef-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 13 <foo\+0x13> f: R_X86_64_PC32 weak_def-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 18 <foo\+0x18> 14: R_X86_64_PC32 weak_hidden_undef-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 1d <foo\+0x1d> 19: R_X86_64_PC32 weak_hidden_def-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 22 <hidden_def> 1e: R_X86_64_PC32 hidden_undef-0x4
0+22 <hidden_def>:
[ ]*[a-f0-9]+: c3 ret
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-3.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-relax-3.d 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-3.d 2024-01-30 16:57:58.487327524 +0100
@@ -12,10 +12,10 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: eb 1b jmp 1f <hidden_def>
[ ]*[a-f0-9]+: eb 1b jmp 21 <global_def>
[ ]*[a-f0-9]+: e9 00 00 00 00 jmp b <foo\+0xb> 7: R_X86_64_PLT32 global_def-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 10 <foo\+0x10> c: R_X86_64_PLT32 weak_def-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 15 <foo\+0x15> 11: R_X86_64_PLT32 weak_hidden_undef-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 1a <foo\+0x1a> 16: R_X86_64_PLT32 weak_hidden_def-0x4
-[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 1f <hidden_def> 1b: R_X86_64_PLT32 hidden_undef-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 10 <foo\+0x10> c: R_X86_64_PC32 weak_def-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 15 <foo\+0x15> 11: R_X86_64_PC32 weak_hidden_undef-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 1a <foo\+0x1a> 16: R_X86_64_PC32 weak_hidden_def-0x4
+[ ]*[a-f0-9]+: e9 00 00 00 00 jmp 1f <hidden_def> 1b: R_X86_64_PC32 hidden_undef-0x4
0+1f <hidden_def>:
[ ]*[a-f0-9]+: c3 ret
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-1.err
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-1.err 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,2 +0,0 @@
-.*relocation R_X86_64_PC32 against symbol `foo' can not be used when making a PIE object; recompile with -fPIE
-#...
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-1a.c
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-1a.c 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
-void
-foo (void)
-{
-}
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-1b.s
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-1b.s 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,7 +0,0 @@
- .text
- .globl main
- .type main, @function
-main:
- movl foo(%rip), %eax
- .size main, .-main
- .section .note.GNU-stack
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2.rd
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2.rd 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,6 +0,0 @@
-#failif
-#...
-.*\(TEXTREL\).*
-#...
-[0-9a-f ]+R_X86_64_NONE.*
-#...
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2a.s
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2a.s 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,8 +0,0 @@
- .text
- .p2align 4,,15
- .globl foo
- .type foo, @function
-foo:
- jmp bar
- .size foo, .-foo
- .section .note.GNU-stack,"",@progbits
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2b.c
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2b.c 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,7 +0,0 @@
-#include <stdio.h>
-
-void
-bar (void)
-{
- puts ("PASS");
-}
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2c.s
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2c.s 2024-01-29 01:00:00.000000000 +0100
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,12 +0,0 @@
- .text
- .p2align 4,,15
- .globl main
- .type main, @function
-main:
- subq $8, %rsp
- call foo
- xorl %eax, %eax
- addq $8, %rsp
- ret
- .size main, .-main
- .section .note.GNU-stack,"",@progbits
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22842b.S
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22842b.S 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/ld/testsuite/ld-x86-64/pr22842b.S 2024-01-30 16:57:58.487327524 +0100
@@ -7,7 +7,7 @@ main:
leaq bar(%rip), %rdi
addq %rax, %rdi
- callq foo
+ callq foo@PLT
xorl %eax, %eax
popq %rcx
retq
Index: binutils-2.42/ld/testsuite/ld-x86-64/x86-64.exp
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/x86-64.exp 2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/ld/testsuite/ld-x86-64/x86-64.exp 2024-01-30 16:57:58.487327524 +0100
@@ -1235,44 +1235,6 @@ if { [isnative] && [check_compiler_avail
"pr22393-3-static" \
] \
[list \
- "Build pr22791-1.so" \
- "-shared" \
- "-fPIC -Wa,-mx86-used-note=yes" \
- { pr22791-1a.c } \
- {} \
- "pr22791-1.so" \
- ] \
- [list \
- "Build pr22791-1" \
- "-pie -Wl,--no-as-needed,-z,notext tmpdir/pr22791-1.so" \
- "$NOPIE_CFLAGS -Wa,-mx86-used-note=yes" \
- { pr22791-1b.s } \
- {{error_output "pr22791-1.err"}} \
- "pr22791-1" \
- ] \
- [list \
- "Build pr22791-2a.o" \
- "" \
- "$NOPIE_CFLAGS -Wa,-mx86-used-note=yes" \
- { pr22791-2a.s } \
- ] \
- [list \
- "Build pr22791-2.so" \
- "-shared tmpdir/pr22791-2a.o" \
- "-fPIC -Wa,-mx86-used-note=yes" \
- { pr22791-2b.c } \
- {{readelf -drW pr22791-2.rd}} \
- "pr22791-2.so" \
- ] \
- [list \
- "Build pr22791-2" \
- "-pie -Wl,--no-as-needed tmpdir/pr22791-2.so" \
- "$NOPIE_CFLAGS -Wa,-mx86-used-note=yes" \
- { pr22791-2c.s } \
- {{readelf -drW pr22791-2.rd}} \
- "pr22791-2" \
- ] \
- [list \
"Build pr22842.so" \
"-shared" \
"-fPIC -Wa,-mx86-used-note=yes" \
@@ -1762,15 +1724,6 @@ if { [isnative] && [check_compiler_avail
"pass.out" \
] \
[list \
- "Run pr22791-2" \
- "-pie -Wl,--no-as-needed tmpdir/pr22791-2.so" \
- "-Wa,-mx86-used-note=yes" \
- { pr22791-2c.s } \
- "pr22791-2" \
- "pass.out" \
- "$NOPIE_CFLAGS" \
- ] \
- [list \
"Run pr22842" \
"-pie -Wl,--no-as-needed tmpdir/pr22842.so" \
"-Wa,-mx86-used-note=yes" \
Reference in New Issue View Git Blame Copy Permalink