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11 Commits

Author SHA1 Message Date
caiyinyu
672b91ba10 Revert "LoongArch: Add glibc.cpu.hwcap support." 
This reverts commit a53451559d.
 2023-09-21 09:10:11 +08:00
caiyinyu
a53451559d LoongArch: Add glibc.cpu.hwcap support. 
Key Points:
1. On lasx & lsx platforms, We must use _dl_runtime_{profile, resolve}_{lsx, lasx}
   to save vector registers.
2. Via "tunables", users can choose str/mem_{lasx,lsx,unaligned} functions with
   `export GLIBC_TUNABLES=glibc.cpu.hwcaps=LASX,...`.
   Note: glibc.cpu.hwcaps doesn't affect _dl_runtime_{profile, resolve}_{lsx, lasx}
   selection.

Usage Notes:
1. Only valid inputs: LASX, LSX, UAL. Case-sensitive, comma-separated, no spaces.
2. Example: `export GLIBC_TUNABLES=glibc.cpu.hwcaps=LASX,UAL` turns on LASX & UAL.
   Unmentioned features turn off. With default ifunc: lasx > lsx > unaligned >
   aligned > generic, effect is: lasx > unaligned > aligned > generic; lsx off.
3. Incorrect GLIBC_TUNABLES settings will show error messages.
   For example: On lsx platforms, you cannot enable lasx features. If you do
   that, you will get error messages.
4. Valid input examples:
   - GLIBC_TUNABLES=glibc.cpu.hwcaps=LASX: lasx > aligned > generic.
   - GLIBC_TUNABLES=glibc.cpu.hwcaps=LSX,UAL: lsx > unaligned > aligned > generic.
   - GLIBC_TUNABLES=glibc.cpu.hwcaps=LASX,UAL,LASX,UAL,LSX,LASX,UAL: Repetitions
     allowed but not recommended. Results in: lasx > lsx > unaligned > aligned >
     generic.
 2023-09-19 09:11:49 +08:00
caiyinyu
c6c73e136a LoongArch: Replace deprecated $v0 with $a0 to eliminate 'as' Warnings. 2023-09-15 09:07:47 +08:00
caiyinyu
f5242db159 LoongArch: Add lasx/lsx support for _dl_runtime_profile. 2023-09-15 09:07:42 +08:00
dengjianbo
cb7954c4c2 LoongArch: Add minuimum binutils required version 
LoongArch glibc can add some LASX/LSX vector instructions codes,
change the required minimum binutils version to 2.41 which could
support vector instructions. HAVE_LOONGARCH_VEC_ASM is removed
accordingly.
 2023-08-14 09:47:09 +08:00
caiyinyu
0e1324e655 LoongArch: Fix soft-float bug about _dl_runtime_resolve{,lsx,lasx} 2023-07-11 11:57:12 +08:00
caiyinyu
7f079fdc16 LoongArch: Add vector implementation for _dl_runtime_resolve. 2023-07-11 10:56:01 +08:00
caiyinyu
eaa5b1cce8 LoongArch: Add support for dl_runtime_profile 
This commit can fix the FAIL item: elf/tst-sprof-basic.
 2023-06-13 10:27:45 +08:00
Joseph Myers
6d7e8eda9b Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Xi Ruoyao
8995b84c45 LoongArch: Fix dl-machine.h code formatting. 
No functional change.
 2022-08-24 10:06:41 +08:00
caiyinyu
a133942025 LoongArch: ABI Implementation 2022-07-26 12:35:12 -03:00