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| author |   Andrew Senkevich <andrew.senkevich@intel.com> | 2014-12-30 11:34:53 -0800 |
|---|---|---|
| committer |   H.J. Lu <hjl.tools@gmail.com> | 2014-12-30 11:37:41 -0800 |
| commit | 07256e183efe00ed833d1f744f7eef1e103afd74 (patch) | |
| tree | 14a11721e980efde98975c1ab80395d9083bb925 | |
| parent | Fix some warnings in the absence of FP round/exception support (diff) | |
| download | glibc-07256e183efe00ed833d1f744f7eef1e103afd74.tar.gz glibc-07256e183efe00ed833d1f744f7eef1e103afd74.tar.bz2 glibc-07256e183efe00ed833d1f744f7eef1e103afd74.zip | |
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.
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | sysdeps/i386/tls-macros.h | 8 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/sysdep.h | 2 |
3 files changed, 16 insertions, 4 deletions
@@ -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 0b857383c9..053cba05d1 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 d751c58e3e..b574418601 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__ \ |