mips archs: fix runaway execution if start fn passed to clone returns

[musl] / src / thread / mips / clone.s

diff --git a/src/thread/mips/clone.s b/src/thread/mips/clone.s
index 6c2e790..30a0146 100644 (file)
--- a/src/thread/mips/clone.s
+++ b/src/thread/mips/clone.s
@@ -12,18 +12,24 @@ __clone:
        lw $6, 16($sp)
        lw $7, 20($sp)
        lw $9, 24($sp)
+       subu $sp, $sp, 16
        sw $9, 16($sp)
        li $2, 4120
        syscall
        beq $7, $0, 1f
        nop
+       addu $sp, $sp, 16
        jr $ra
        subu $2, $0, $2
 1:     beq $2, $0, 1f
        nop
+       addu $sp, $sp, 16
        jr $ra
        nop
 1:     lw $25, 0($sp)
        lw $4, 4($sp)
-       jr $25
+       jalr $25
        nop
+       move $4, $2
+       li $2, 4001
+       syscall