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13 Commits

Author SHA1 Message Date
Paul Eggert
dff8da6b3e Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Adhemerval Zanella
55f41ef8de elf: Remove LD_PROFILE for static binaries 
The _dl_non_dynamic_init does not parse LD_PROFILE, which does not
enable profile for dlopen objects.  Since dlopen is deprecated for
static objects, it is better to remove the support.

It also allows to trim down libc.a of profile support.

Checked on x86_64-linux-gnu.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
 2023-11-21 16:15:42 -03:00
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