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fix broken mips syscall asm

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this code was using $10 to save the syscall number, but $10 is not
necessarily preserved by the kernel across syscalls. only mattered for
syscalls that got interrupted by a signal and restarted. as far as i
can tell, $25 is preserved by the kernel across syscalls.
This commit is contained in:
Rich Felker 2012-09-09 00:55:31 -04:00
parent 41c5ee50ee
commit 21419914c5
1 changed files with 2 additions and 2 deletions
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4
src/internal/mips/syscall.s
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@ -3,7 +3,7 @@
.global __syscall .global __syscall
.type __syscall,@function .type __syscall,@function
__syscall: __syscall:
move $10, $4 move $25, $4
move $4, $5 move $4, $5
move $5, $6 move $5, $6
move $6, $7 move $6, $7
@ -13,7 +13,7 @@ __syscall:
subu $sp, $sp, 32 subu $sp, $sp, 32
sw $8, 16($sp) sw $8, 16($sp)
sw $9, 20($sp) sw $9, 20($sp)
move $2, $10 move $2, $25
syscall syscall
beq $7, $0, 1f beq $7, $0, 1f
addu $sp, $sp, 32 addu $sp, $sp, 32