glibc/SOURCES/glibc-rh1855790-4.patch

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2021-03-30 18:01:54 +00:00
commit 0455f251f494d30db4b52f11b5b0b7f285f775ef
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat Feb 1 05:44:55 2020 -0800
i386: Use ENTRY/END in assembly codes
Use ENTRY and END in assembly codes so that ENDBR32 will be added at
function entries when CET is enabled.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
---
diff --git a/sysdeps/i386/nptl/pthread_spin_lock.S b/sysdeps/i386/nptl/pthread_spin_lock.S
index 1980fec..8aa081b 100644
--- a/sysdeps/i386/nptl/pthread_spin_lock.S
+++ b/sysdeps/i386/nptl/pthread_spin_lock.S
@@ -15,12 +15,10 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include <sysdep.h>
#include <lowlevellock.h>
- .globl pthread_spin_lock
- .type pthread_spin_lock,@function
- .align 16
-pthread_spin_lock:
+ENTRY (pthread_spin_lock)
mov 4(%esp), %eax
1: LOCK
decl 0(%eax)
@@ -34,4 +32,4 @@ pthread_spin_lock:
cmpl $0, 0(%eax)
jg 1b
jmp 2b
- .size pthread_spin_lock,.-pthread_spin_lock
+END (pthread_spin_lock)
diff --git a/sysdeps/i386/nptl/pthread_spin_unlock.S b/sysdeps/i386/nptl/pthread_spin_unlock.S
index 2e71086..2995001 100644
--- a/sysdeps/i386/nptl/pthread_spin_unlock.S
+++ b/sysdeps/i386/nptl/pthread_spin_unlock.S
@@ -16,15 +16,14 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
- .globl pthread_spin_unlock
- .type pthread_spin_unlock,@function
- .align 16
-pthread_spin_unlock:
+#include <sysdep.h>
+
+ENTRY (pthread_spin_unlock)
movl 4(%esp), %eax
movl $1, (%eax)
xorl %eax, %eax
ret
- .size pthread_spin_unlock,.-pthread_spin_unlock
+END (pthread_spin_unlock)
/* The implementation of pthread_spin_init is identical. */
.globl pthread_spin_init
diff --git a/sysdeps/i386/pthread_spin_trylock.S b/sysdeps/i386/pthread_spin_trylock.S
index 686dd8c..42cbdb7 100644
--- a/sysdeps/i386/pthread_spin_trylock.S
+++ b/sysdeps/i386/pthread_spin_trylock.S
@@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include <sysdep.h>
#include <pthread-errnos.h>
@@ -25,10 +26,7 @@
# define LOCK lock
#endif
- .globl pthread_spin_trylock
- .type pthread_spin_trylock,@function
- .align 16
-pthread_spin_trylock:
+ENTRY (pthread_spin_trylock)
movl 4(%esp), %edx
movl $1, %eax
xorl %ecx, %ecx
@@ -43,4 +41,4 @@ pthread_spin_trylock:
0:
#endif
ret
- .size pthread_spin_trylock,.-pthread_spin_trylock
+END (pthread_spin_trylock)