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| author |   Florian Weimer <fweimer@redhat.com> | 2020-11-09 11:31:04 +0100 |
|---|---|---|
| committer |   Sergei Trofimovich <slyfox@gentoo.org> | 2020-12-07 20:03:15 +0000 |
| commit | 24723906424251ecf1f6bdcc6da5f3fe1da38064 (patch) | |
| tree | bf4cb9284d8a3e08552fec65ad2479a3553ec310 | |
| parent | aarch64: Fix DT_AARCH64_VARIANT_PCS handling [BZ #26798] (diff) | |
| download | glibc-24723906424251ecf1f6bdcc6da5f3fe1da38064.tar.gz glibc-24723906424251ecf1f6bdcc6da5f3fe1da38064.tar.bz2 glibc-24723906424251ecf1f6bdcc6da5f3fe1da38064.zip | |
aarch64: Add unwind information to _start (bug 26853)
This adds CFI directives which communicate that the stack ends
with this function.
Fixes bug 26853.
(cherry picked from commit 5edf3d9fd6efe06fda37b2a460e60690a90457a4)
| -rw-r--r-- | NEWS | 1 | ||||
| -rw-r--r-- | 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 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 |