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| author | H.J. Lu <hjl.tools@gmail.com> | 2023-07-02 07:46:21 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2023-12-28 08:47:17 -0800 |
| commit | 00a17c6ad068c95019e1f37cfc2d1b8aaebd6ecb (patch) | |
| tree | b45ac33f86f86ad32fbf3205cd48948397f6af52 /elfcpp | |
| parent | a533c8df598b5ef99c54a13e2b137c98b34b043c (diff) | |
| download | gdb-00a17c6ad068c95019e1f37cfc2d1b8aaebd6ecb.zip gdb-00a17c6ad068c95019e1f37cfc2d1b8aaebd6ecb.tar.gz gdb-00a17c6ad068c95019e1f37cfc2d1b8aaebd6ecb.tar.bz2 | |
Gold: Handle R_X86_64_CODE_4_GOTPC32_TLSDESC/R_X86_64_CODE_4_GOTTPOFF
Handle R_X86_64_CODE_4_GOTTPOFF and R_X86_64_CODE_4_GOTPC32_TLSDESC.
Convert
add name@gottpoff(%rip), %reg
mov name@gottpoff(%rip), %reg
to
add $name@tpoff, %reg
mov $name@tpoff, %reg
and
lea name@tlsdesc(%rip), %reg
to
mov $name@tpoff, %reg
mov name@gottpoff(%rip), %reg
if the instruction is encoded with the REX2 prefix when possible.
elfcpp/
* x86_64.h (R_X86_64_CODE_4_GOTTPOFF): New.
(R_X86_64_CODE_4_GOTPC32_TLSDESC): Likewise.
gold/
* x86_64.cc (Target_x86_64::optimize_tls_reloc): Handle
R_X86_64_CODE_4_GOTPC32_TLSDESC and R_X86_64_CODE_4_GOTTPOFF.
(Target_x86_64::Scan::get_reference_flags): Likewise.
(Target_x86_64::Scan::local): Likewise.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::Relocate::relocate): Likewise.
(Target_x86_64::Relocate::relocate_tls): Likewise.
(Target_x86_64::Relocate::tls_desc_gd_to_ie): Handle
R_X86_64_CODE_4_GOTPC32_TLSDESC.
(Target_x86_64::Relocate::tls_desc_gd_to_le): Likewise.
(Target_x86_64::Relocate::tls_ie_to_le): Handle.
R_X86_64_CODE_4_GOTTPOFF.
* testsuite/Makefile.am: Add x86_64_ie_to_le test.
* testsuite/Makefile.in: Regenerated.
* testsuite/x86_64_gd_to_le.s: Add R_X86_64_CODE_4_GOTPC32_TLSDESC
test.
* testsuite/x86_64_gd_to_le.sh: Check GDesc to LE conversion.
* testsuite/x86_64_ie_to_le.s: New file.
* testsuite/x86_64_ie_to_le.sh: Likewise.
Diffstat (limited to 'elfcpp')
| -rw-r--r-- | elfcpp/x86_64.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/elfcpp/x86_64.h b/elfcpp/x86_64.h index 97a87ae..da6ac19 100644 --- a/elfcpp/x86_64.h +++ b/elfcpp/x86_64.h @@ -102,6 +102,14 @@ enum // GOT if the instruction starts at 4 // bytes before the relocation offset, // relaxable. + R_X86_64_CODE_4_GOTTPOFF = 44, // 32 bit signed PC relative offset to + // GOT entry for IE symbol if the + // instruction starts at 4 bytes before + // the relocation offset. + R_X86_64_CODE_4_GOTPC32_TLSDESC = 45, // 32-bit PC relative to TLS + // descriptor in GOT if the + // instruction starts at 4 bytes + // before the relocation offset. // GNU vtable garbage collection extensions. R_X86_64_GNU_VTINHERIT = 250, R_X86_64_GNU_VTENTRY = 251 |