[PATCH] aarch64: Add unwind information to _start (bug 26853)
Florian Weimer
fweimer@redhat.com
Mon Nov 9 11:06:25 GMT 2020
This adds CFI directives which communicate that the stack ends
with this function.
Fixes bug 26853.
---
sysdeps/aarch64/start.S | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/sysdeps/aarch64/start.S b/sysdeps/aarch64/start.S
index 75393e1c18..108f602721 100644
--- a/sysdeps/aarch64/start.S
+++ b/sysdeps/aarch64/start.S
@@ -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
--
Red Hat GmbH, https://de.redhat.com/ , Registered seat: Grasbrunn,
Commercial register: Amtsgericht Muenchen, HRB 153243,
Managing Directors: Charles Cachera, Brian Klemm, Laurie Krebs, Michael O'Neill
More information about the Libc-alpha
mailing list