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| author | YunQiang Su <yunqiang.su@cipunited.com> | 2022-08-02 10:57:18 +0000 |
|---|---|---|
| committer | YunQiang Su <yunqiang.su@cipunited.com> | 2022-10-09 06:39:04 +0000 |
| commit | 66c48be23e0fa5ee7474b4b078e013f901c71eed (patch) | |
| tree | d8e437b2fb99d5820c2f84a8bbc01e4a1848f1ea /gcc/value-range.h | |
| parent | d7346a3bf6554ddaef9853c1b0fb770c4a3cd9d2 (diff) | |
| download | gcc-66c48be23e0fa5ee7474b4b078e013f901c71eed.zip gcc-66c48be23e0fa5ee7474b4b078e013f901c71eed.tar.gz gcc-66c48be23e0fa5ee7474b4b078e013f901c71eed.tar.bz2 | |
MIPS: improve -march=native arch detection
If we cannot get info from options and cpuinfo, we try to get from:
1. getauxval(AT_BASE_PLATFORM), introduced since Linux 5.7
2. _MIPS_ARCH from host compiler.
mnan=2008 option is also used if __mips_nan2008__ is used.
This can fix the wrong loader usage on r5/r6 platform with
-march=native.
gcc/ChangeLog:
* config.gcc: set with_arch to default_mips_arch if no defined.
* config/mips/driver-native.cc (host_detect_local_cpu):
try getauxval(AT_BASE_PLATFORM) and _MIPS_ARCH, too.
pass -mnan=2008 if __mips_nan2008__ is defined.
* config.in: define HAVE_SYS_AUXV_H and HAVE_GETAUXVAL.
* configure.ac: detect sys/auxv.h and getauxval.
* configure: regenerated.
Diffstat (limited to 'gcc/value-range.h')
0 files changed, 0 insertions, 0 deletions