arch/armv7-a: replace SYS_signal_handler_return hardcode

Signed-off-by: chao.an <anchao@xiaomi.com>
2022-02-22 16:32:27 +08:00 · 2022-02-22 16:32:27 +08:00 · 0aa0022b12
parent e0fabbfdd6
commit 0aa0022b12
1 changed files with 4 additions and 3 deletions
--- a/arch/arm/src/armv7-a/crt0.c
+++ b/arch/arm/src/armv7-a/crt0.c
@ -79,9 +79,10 @@ static void sig_trampoline(void)
    " blx  ip\n"         /* Call the signal handler */
    " pop  {r2}\n"       /* Recover LR in R2 */
    " mov  lr, r2\n"     /* Restore LR */
-    " mov  r0, #5\n"     /* SYS_signal_handler_return */
-    " svc %0\n"          /* Return from the SYSCALL */
-    ::"i"(SYS_syscall)
+    " mov  r0, %0\n"     /* SYS_signal_handler_return */
+    " svc %1\n"          /* Return from the SYSCALL */
+    ::"i"(SYS_signal_handler_return),
+      "i"(SYS_syscall)
  );
 }