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| author | Xi Ruoyao <xry111@xry111.site> | 2023-08-27 00:36:51 +0800 |
|---|---|---|
| committer | caiyinyu <caiyinyu@loongson.cn> | 2023-08-29 10:35:38 +0800 |
| commit | 3efa26749e4d28768558330353dc15c6f325ed4e (patch) | |
| tree | 189e3ec2424ee8c65ab11a1fca53295156e10459 | |
| parent | aac842d0edbe53a150ab57a4f776cb50294b6388 (diff) | |
| download | glibc-3efa26749e4d28768558330353dc15c6f325ed4e.zip glibc-3efa26749e4d28768558330353dc15c6f325ed4e.tar.gz glibc-3efa26749e4d28768558330353dc15c6f325ed4e.tar.bz2 | |
LoongArch: Micro-optimize LD_PCREL
We are requiring Binutils >= 2.41, so explicit relocation syntax is
always supported by the assembler. Use it to reduce one instruction.
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
| -rw-r--r-- | sysdeps/unix/sysv/linux/loongarch/pointer_guard.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h b/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h index b25e353..d6c7868 100644 --- a/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h +++ b/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h @@ -19,17 +19,15 @@ #ifndef POINTER_GUARD_H #define POINTER_GUARD_H -/* Load a got-relative EXPR into G, using T. - Note G and T are register names. */ +/* Load a got-relative EXPR into register G. */ #define LD_GLOBAL(G, EXPR) \ la.global G, EXPR; \ REG_L G, G, 0; -/* Load a pc-relative EXPR into G, using T. - Note G and T are register names. */ +/* Load a pc-relative EXPR into register G. */ #define LD_PCREL(G, EXPR) \ - la.pcrel G, EXPR; \ - REG_L G, G, 0; + pcalau12i G, %pc_hi20(EXPR); \ + REG_L G, G, %pc_lo12(EXPR); #if (IS_IN (rtld) \ || (!defined SHARED && (IS_IN (libc) \ |