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| author | Xi Ruoyao <xry111@mengyan1223.wang> | 2021-08-13 16:01:14 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2021-08-13 16:01:14 +0000 |
| commit | 0f62fe053273ff6c62ac95c59b7687c964737b00 (patch) | |
| tree | a4a82767d0170a9b20ffa327588635556314ba2e | |
| parent | 1f51cd9a860ee45eee8a56fb2ba925267a2a7bfe (diff) | |
| download | glibc-0f62fe053273ff6c62ac95c59b7687c964737b00.tar.gz glibc-0f62fe053273ff6c62ac95c59b7687c964737b00.tar.xz glibc-0f62fe053273ff6c62ac95c59b7687c964737b00.zip | |
mips: increase stack alignment in clone to match the ABI
In "mips: align stack in clone [BZ #28223]"
(commit 1f51cd9a860ee45eee8a56fb2ba925267a2a7bfe) I made a mistake: I
misbelieved one "word" was 2-byte and "doubleword" should be 4-byte.
But in MIPS ABI one "word" is defined 32-bit (4-byte), so "doubleword" is
8-byte [1], and "quadword" is 16-byte [2].
[1]: "System V Application Binary Interface: MIPS(R) RISC Processor
Supplement, 3rd edition", page 3-31
[2]: "MIPSpro(TM) 64-Bit Porting and Transition Guide", page 23
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/clone.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/clone.S b/sysdeps/unix/sysv/linux/mips/clone.S index 43a5ad3a40..fd71b5ca2e 100644 --- a/sysdeps/unix/sysv/linux/mips/clone.S +++ b/sysdeps/unix/sysv/linux/mips/clone.S @@ -55,11 +55,11 @@ NESTED(__clone,4*SZREG,sp) .set at #endif - /* Align stack to 4/8 bytes per the ABI. */ + /* Align stack to 8/16 bytes per the ABI. */ #if _MIPS_SIM == _ABIO32 - li t0,-4 -#else li t0,-8 +#else + li t0,-16 #endif and a1,a1,t0 |