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GNU C Library master sources branch master updated. glibc-2.20-452-g07256e1
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 30 Dec 2014 19:37:56 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.20-452-g07256e1
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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=07256e183efe00ed833d1f744f7eef1e103afd74
commit 07256e183efe00ed833d1f744f7eef1e103afd74
Author: Andrew Senkevich <andrew.senkevich@intel.com>
Date: Tue Dec 30 11:34:53 2014 -0800
i386: Fix build by GCC 5.0
Fixed 3 "make check" failures on glibc 32bit built by gcc 5.0 due to EBX
was enabled for allocation:
https://gcc.gnu.org/ml/gcc-patches/2014-10/msg00892.html
Tests elf/tst-tls3, elf/tst-execstack-needed, elf/tst-execstack-prog
were failed because EBX was used as PIC register.
* sysdeps/i386/tls-macros.h: Include <features.h>.
(TLS_LE): Use non-PIC version for GCC >= 5.0.
(TLS_IE): Likewise.
(TLS_LD): Likewise.
(TLS_GD): Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h (check_consistency): Don't
define for GCC >= 5.0.
diff --git a/ChangeLog b/ChangeLog
index d6c2d28..5937975 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2014-12-30 Andrew Senkevich <andrew.senkevich@intel.com>
+
+ * sysdeps/i386/tls-macros.h: Include <features.h>.
+ (TLS_LE): Use non-PIC version for GCC >= 5.0.
+ (TLS_IE): Likewise.
+ (TLS_LD): Likewise.
+ (TLS_GD): Likewise.
+ * sysdeps/unix/sysv/linux/i386/sysdep.h (check_consistency): Don't
+ define for GCC >= 5.0.
+
2014-12-30 Chris Metcalf <cmetcalf@ezchip.com>
* math/test-fenv.c (test_single_exception, set_single_exc,
diff --git a/sysdeps/i386/tls-macros.h b/sysdeps/i386/tls-macros.h
index 0b85738..053cba0 100644
--- a/sysdeps/i386/tls-macros.h
+++ b/sysdeps/i386/tls-macros.h
@@ -1,3 +1,5 @@
+#include <features.h> /* For __GNUC_PREREQ. */
+
#define TLS_LE(x) \
({ int *__l; \
asm ("movl %%gs:0,%0\n\t" \
@@ -5,7 +7,7 @@
: "=r" (__l)); \
__l; })
-#ifdef PIC
+#if defined PIC && !__GNUC_PREREQ (5,0)
# define TLS_IE(x) \
({ int *__l; \
asm ("movl %%gs:0,%0\n\t" \
@@ -27,7 +29,7 @@
__l; })
#endif
-#ifdef PIC
+#if defined PIC && !__GNUC_PREREQ (5,0)
# define TLS_LD(x) \
({ int *__l, __c, __d; \
asm ("leal " #x "@tlsldm(%%ebx),%%eax\n\t" \
@@ -51,7 +53,7 @@
__l; })
#endif
-#ifdef PIC
+#if defined PIC && !__GNUC_PREREQ (5,0)
# define TLS_GD(x) \
({ int *__l, __c, __d; \
asm ("leal " #x "@tlsgd(%%ebx),%%eax\n\t" \
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index d751c58..b574418 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -502,7 +502,7 @@ asm (".L__X'%ebx = 1\n\t"
#endif
/* Consistency check for position-independent code. */
-#ifdef __PIC__
+#if defined __PIC__ && !__GNUC_PREREQ (5,0)
# define check_consistency() \
({ int __res; \
__asm__ __volatile__ \
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 10 ++++++++++
sysdeps/i386/tls-macros.h | 8 +++++---
sysdeps/unix/sysv/linux/i386/sysdep.h | 2 +-
3 files changed, 16 insertions(+), 4 deletions(-)
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