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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-09-22 17:06:45 +0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-09-23 03:45:19 +0800 |
| commit | 1b714c14e40f37ea8ea02a4998c4d95f25aff7f3 (patch) | |
| tree | 87c9452df802c8983479585f8a0225df718d4bce /ld | |
| parent | 104ee502450af85428012e1d3bde42d033024f22 (diff) | |
| download | binutils-1b714c14e40f37ea8ea02a4998c4d95f25aff7f3.zip binutils-1b714c14e40f37ea8ea02a4998c4d95f25aff7f3.tar.gz binutils-1b714c14e40f37ea8ea02a4998c4d95f25aff7f3.tar.bz2 | |
x86: Turn PLT32 to PC32 only for PC-relative relocations
commit 292676c15a615b5a95bede9ee91004d3f7ee7dfd
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Feb 13 13:44:17 2020 -0800
x86: Resolve PLT32 reloc aganst local symbol to section
resolved PLT32 relocation against local symbol to section and
commit 2585b7a5ce5830e60a089aa2316a329558902f0c
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Jul 19 06:51:19 2020 -0700
x86: Change PLT32 reloc against section to PC32
turned PLT32 relocation against section into PC32 relocation. But these
transformations are valid only for PC-relative relocations. Add fx_pcrel
check for PC-relative relocations when performing these transformations
to keep PLT32 relocation in `movq $foo@PLT, %rax`.
gas/
PR gas/32196
* config/tc-i386.c (tc_i386_fix_adjustable): Return fixP->fx_pcrel
for PLT32 relocations.
(i386_validate_fix): Turn PLT32 relocation into PC32 relocation
only if fixp->fx_pcrel is set.
* testsuite/gas/i386/reloc32.d: Updated.
* testsuite/gas/i386/reloc64.d: Likewise.
* testsuite/gas/i386/reloc32.s: Add PR gas/32196 test.
* testsuite/gas/i386/reloc64.s: Likewise.
ld/
PR gas/32196
* testsuite/ld-x86-64/plt3.s: New file.
* testsuite/ld-x86-64/x86-64.exp: Run plt3.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'ld')
| -rw-r--r-- | ld/testsuite/ld-x86-64/plt3.s | 27 | ||||
| -rw-r--r-- | ld/testsuite/ld-x86-64/x86-64.exp | 8 |
2 files changed, 35 insertions, 0 deletions
diff --git a/ld/testsuite/ld-x86-64/plt3.s b/ld/testsuite/ld-x86-64/plt3.s new file mode 100644 index 0000000..c3a29b5 --- /dev/null +++ b/ld/testsuite/ld-x86-64/plt3.s @@ -0,0 +1,27 @@ + .text + .global _start +_start: + movq $foo@PLT, %rax + leaq -11(%rip), %rbx + leaq (%rbx, %rax), %rax + call *%rax + + # Write out "PASS\n". + movl $5, %edx + movl $.LC0, %esi + movl $1, %edi + movl $1, %eax + syscall + + # exit + movq $60, %rax + movq $0, %rdi + syscall + +foo: + ret + + .section .rodata.str1.1,"aMS",@progbits,1 +.LC0: + .string "PASS\n" + .section .note.GNU-stack,"",@progbits diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp index cf78fff..1a6754d 100644 --- a/ld/testsuite/ld-x86-64/x86-64.exp +++ b/ld/testsuite/ld-x86-64/x86-64.exp @@ -1929,6 +1929,14 @@ if { [isnative] && [check_compiler_available] } { "pr32189" \ "pass.out" \ ] \ + [list \ + "Run plt3" \ + "$NOPIE_LDFLAGS -nostdlib -nostartfiles" \ + "" \ + { plt3.s } \ + "plt3" \ + "pass.out" \ + ] \ ] # Run-time tests which require working ifunc attribute support. |