[2.32,COMMITTED] aarch64: Add unwind information to _start (bug 26853)
Commit Message
This adds CFI directives which communicate that the stack ends
with this function.
Fixes bug 26853.
(cherry picked from commit 5edf3d9fd6efe06fda37b2a460e60690a90457a4)
---
NEWS | 1 +
sysdeps/aarch64/start.S | 7 +++----
2 files changed, 4 insertions(+), 4 deletions(-)
@@ -15,6 +15,7 @@ The following bugs are resolved with this release:
[26637] libc: semctl SEM_STAT_ANY fails to pass the buffer specified
by the caller to the kernel
[26639] libc: msgctl IPC_INFO and MSG_INFO return garbage
+ [26853] aarch64: Missing unwind information in statically linked startup code
Version 2.32
@@ -43,11 +43,9 @@
*/
.text
- .globl _start
- .type _start,#function
-_start:
- BTI_C
+ENTRY(_start)
/* Create an initial frame with 0 LR and FP */
+ cfi_undefined (x30)
mov x29, #0
mov x30, #0
@@ -103,6 +101,7 @@ _start:
__wrap_main:
b main
#endif
+END(_start)
/* Define a symbol for the first piece of initialized data. */
.data