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authorXi Ruoyao <xry111@xry111.site>2024-06-13 19:04:05 +0800
committercaiyinyu <caiyinyu@loongson.cn>2024-06-14 10:14:54 +0800
commit97aa7b7346bb9f1807e450c889fccbd2a7d8ff49 (patch)
tree1ff3164154544026329c681a2743a0a7aaa85799 /sysdeps/loongarch/sys
parent868ab8923a2ec977faafec97ecafac0c3159c1b2 (diff)
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LoongArch: Ensure sp 16-byte aligned for tlsdesc
"ADDI sp, sp, 24" and "ADDI sp, sp, SZFCSREG" (SZFCSREG = 4) are
misaligning the stack: the ABI mandates a 16-byte alignment.  Fix it
by changing the first one to "ADDI sp, sp, 32", and reuse the spare 4th
slot for saving fcsr.

Reported-by: Jinyang He <hejinyang@loongson.cn>
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Diffstat (limited to 'sysdeps/loongarch/sys')
-rw-r--r--sysdeps/loongarch/sys/asm.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/sysdeps/loongarch/sys/asm.h b/sysdeps/loongarch/sys/asm.h
index 23c1d12914..51521a7eb4 100644
--- a/sysdeps/loongarch/sys/asm.h
+++ b/sysdeps/loongarch/sys/asm.h
@@ -25,7 +25,6 @@
 /* Macros to handle different pointer/register sizes for 32/64-bit code.  */
 #define SZREG 8
 #define SZFREG 8
-#define SZFCSREG 4
 #define SZVREG 16
 #define SZXREG 32
 #define REG_L ld.d