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authorRich Felker <dalias@aerifal.cx>2012-09-09 00:55:31 -0400
committerRich Felker <dalias@aerifal.cx>2012-09-09 00:55:31 -0400
commit21419914c530c505cb450733b724257be703d9db (patch)
tree0c31ccce2b6a9ee5fb2cce79bd316160c5382389 /src
parent41c5ee50eee769f85253946e4c4b5706de37e9e9 (diff)
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fix broken mips syscall asm
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.
Diffstat (limited to 'src')
-rw-r--r--src/internal/mips/syscall.s4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/internal/mips/syscall.s b/src/internal/mips/syscall.s
index 01a5917b..28575408 100644
--- a/src/internal/mips/syscall.s
+++ b/src/internal/mips/syscall.s
@@ -3,7 +3,7 @@
 .global __syscall
 .type   __syscall,@function
 __syscall:
-	move    $10, $4
+	move    $25, $4
 	move    $4, $5
 	move    $5, $6
 	move    $6, $7
@@ -13,7 +13,7 @@ __syscall:
 	subu    $sp, $sp, 32
 	sw      $8, 16($sp)
 	sw      $9, 20($sp)
-	move    $2, $10
+	move    $2, $25
 	syscall
 	beq     $7, $0, 1f
 	addu    $sp, $sp, 32