about summary refs log tree commit diff
path: root/sysdeps/x86/tst-cpu-features-cpuinfo.c
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2024-02-28 09:51:14 -0800
committerH.J. Lu <hjl.tools@gmail.com>2024-02-28 11:49:30 -0800
commitbefe2d3c4dec8be2cdd01a47132e47bdb7020922 (patch)
treec2f32241668b7c61e8c61d14430052faa1bdcdbc /sysdeps/x86/tst-cpu-features-cpuinfo.c
parent0aac205a814a8511e98d02b91a8dc908f1c53cde (diff)
downloadglibc-befe2d3c4dec8be2cdd01a47132e47bdb7020922.tar.gz
glibc-befe2d3c4dec8be2cdd01a47132e47bdb7020922.tar.xz
glibc-befe2d3c4dec8be2cdd01a47132e47bdb7020922.zip
x86-64: Don't use SSE resolvers for ISA level 3 or above
When glibc is built with ISA level 3 or above enabled, SSE resolvers
aren't available and glibc fails to build:

ld: .../elf/librtld.os: in function `init_cpu_features':
.../elf/../sysdeps/x86/cpu-features.c:1200:(.text+0x1445f): undefined reference to `_dl_runtime_resolve_fxsave'
ld: .../elf/librtld.os: relocation R_X86_64_PC32 against undefined hidden symbol `_dl_runtime_resolve_fxsave' can not be used when making a shared object
/usr/local/bin/ld: final link failed: bad value

For ISA level 3 or above, don't use _dl_runtime_resolve_fxsave nor
_dl_tlsdesc_dynamic_fxsave.

This fixes BZ #31429.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diffstat (limited to 'sysdeps/x86/tst-cpu-features-cpuinfo.c')
0 files changed, 0 insertions, 0 deletions