preserve statck alignment in arm.S's vmRun

2025-03-25 13:27:58 +00:00 · 2011-02-20 02:48:56 +00:00 · 2011-02-20 02:48:56 +00:00 · b2268143f5
commit b2268143f5
parent 5524b9a5a3
1 changed files with 3 additions and 0 deletions
--- a/src/arm.S
+++ b/src/arm.S
@ -66,6 +66,8 @@ vmRun:
  // r1: arguments
  // r2: checkpoint
  stmfd sp!, {r4-r11, lr}
+  // align stack
+  sub   sp, sp, #12
   
  str   sp, [r2, #CHECKPOINT_STACK]

@ -76,5 +78,6 @@ vmRun:

 .globl vmRun_returnAddress
 vmRun_returnAddress:
+  add   sp, sp, #12
  ldmfd sp!, {r4-r11, lr}
  bx    lr