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| author | caiyinyu <caiyinyu@loongson.cn> | 2022-08-17 08:17:39 +0800 |
|---|---|---|
| committer | caiyinyu <caiyinyu@loongson.cn> | 2022-08-30 11:45:22 +0800 |
| commit | fa9e095bbe9b624022ff77551e5998100bdc4b29 (patch) | |
| tree | 963c7748061a2eb81896b4acdd3c3f120843fb99 /sysdeps/unix/sysv | |
| parent | 02ca25fef2785974011e9c5beecc99b900b69fd7 (diff) | |
| download | glibc-fa9e095bbe9b624022ff77551e5998100bdc4b29.tar.gz glibc-fa9e095bbe9b624022ff77551e5998100bdc4b29.tar.xz glibc-fa9e095bbe9b624022ff77551e5998100bdc4b29.zip | |
LoongArch: Fix ptr mangling/demangling features.
Diffstat (limited to 'sysdeps/unix/sysv')
| -rw-r--r-- | sysdeps/unix/sysv/linux/loongarch/sysdep.h | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/sysdeps/unix/sysv/linux/loongarch/sysdep.h b/sysdeps/unix/sysv/linux/loongarch/sysdep.h index 157cbd6c6b..f4a1d23a97 100644 --- a/sysdeps/unix/sysv/linux/loongarch/sysdep.h +++ b/sysdeps/unix/sysv/linux/loongarch/sysdep.h @@ -316,29 +316,28 @@ extern long int __syscall_error (long int neg_errno); /* Pointer mangling is supported for LoongArch. */ -/* Load or store to/from a got-relative EXPR into/from G, using T. +/* Load a got-relative EXPR into G, using T. Note G and T are register names. */ -#define LDST_GLOBAL(OP, G, T, EXPR) \ - pcalau12i T, %got_pc_hi20(EXPR); \ - OP T, T, %got_pc_lo12(EXPR); \ - OP G, T, 0; +#define LD_GLOBAL(G, EXPR) \ + la.global G, EXPR; \ + REG_L G, G, 0; -/* Load or store to/from a pc-relative EXPR into/from G, using T. +/* Load a pc-relative EXPR into G, using T. Note G and T are register names. */ -#define LDST_PCREL(OP, G, T, EXPR) \ - pcalau12i T, %pc_hi20(EXPR); \ - OP G, T, %pc_lo12(EXPR); +#define LD_PCREL(G, EXPR) \ + la.pcrel G, EXPR; \ + REG_L G, G, 0; #if (IS_IN (rtld) \ || (!defined SHARED && (IS_IN (libc) \ || IS_IN (libpthread)))) #ifdef __ASSEMBLER__ -#define PTR_MANGLE(dst, src, guard, tmp) \ - LDST_PCREL (REG_L, guard, tmp, __pointer_chk_guard_local); \ +#define PTR_MANGLE(dst, src, guard) \ + LD_PCREL (guard, __pointer_chk_guard_local); \ PTR_MANGLE2 (dst, src, guard); -#define PTR_DEMANGLE(dst, src, guard, tmp) \ - LDST_PCREL (REG_L, guard, tmp, __pointer_chk_guard_local); \ +#define PTR_DEMANGLE(dst, src, guard) \ + LD_PCREL (guard, __pointer_chk_guard_local); \ PTR_DEMANGLE2 (dst, src, guard); /* Use PTR_MANGLE2 for efficiency if guard is already loaded. */ #define PTR_MANGLE2(dst, src, guard) \ @@ -355,11 +354,11 @@ extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden; #else #ifdef __ASSEMBLER__ -#define PTR_MANGLE(dst, src, guard, tmp) \ - LDST_GLOBAL (REG_L, guard, tmp, __pointer_chk_guard); \ +#define PTR_MANGLE(dst, src, guard) \ + LD_GLOBAL (guard, __pointer_chk_guard); \ PTR_MANGLE2 (dst, src, guard); -#define PTR_DEMANGLE(dst, src, guard, tmp) \ - LDST_GLOBAL (REG_L, guard, tmp, __pointer_chk_guard); \ +#define PTR_DEMANGLE(dst, src, guard) \ + LD_GLOBAL (guard, __pointer_chk_guard); \ PTR_DEMANGLE2 (dst, src, guard); /* Use PTR_MANGLE2 for efficiency if guard is already loaded. */ #define PTR_MANGLE2(dst, src, guard) \ |