johannes Tue, 09 Feb 2010 21:58:13 +0000
Revision: http://svn.php.net/viewvc?view=revision&revision=294825
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Log:
Detect if we can rely on compiler-specific alignment features else use custom
workarounds. Fixes #50753
Bug: http://bugs.php.net/50753 (Assigned) crypt_sha256.c / crypt_sha512.c - Gnu
specific code, non-Gnu compiler
Changed paths:
U php/php-src/branches/PHP_5_3/ext/standard/config.m4
U php/php-src/branches/PHP_5_3/ext/standard/crypt_sha256.c
U php/php-src/branches/PHP_5_3/ext/standard/crypt_sha512.c
U php/php-src/trunk/ext/standard/config.m4
U php/php-src/trunk/ext/standard/crypt_sha256.c
U php/php-src/trunk/ext/standard/crypt_sha512.c
Modified: php/php-src/branches/PHP_5_3/ext/standard/config.m4
===================================================================
--- php/php-src/branches/PHP_5_3/ext/standard/config.m4 2010-02-09 21:38:09 UTC (rev 294824)
+++ php/php-src/branches/PHP_5_3/ext/standard/config.m4 2010-02-09 21:58:13 UTC (rev 294825)
@@ -235,6 +235,41 @@
dnl If one of them is missing, use our own implementation, portable code is then possible
dnl
if test "$ac_cv_crypt_blowfish" = "no" || test "$ac_cv_crypt_des" = "no" || test "$ac_cv_crypt_ext_des" = "no" || test "x$php_crypt_r" = "x0"; then
+
+ dnl
+ dnl Check for __alignof__ support in the compiler
+ dnl
+ AC_CACHE_CHECK(whether the compiler supports __alignof__,ac_cv_alignof_exists,[
+ AC_TRY_COMPILE([
+int main() {
+ int align = __alignof__(int);
+ return 0;
+}
+ ],[
+ ac_cv_alignof_exists=yes
+ ],[
+ ac_cv_alignof_exists=no
+ ])])
+ if test "$ac_cv_alignof_exists" = "yes"; then
+ AC_DEFINE([HAVE_ALIGNOF], 1, [whether the compiler supports __alignof__])
+ fi
+
+ dnl
+ dnl Check for __attribute__ ((__aligned__)) support in the compiler
+ dnl
+ AC_CACHE_CHECK(whether the compiler supports aligned attribute,ac_cv_attribute_aligned,[
+ AC_TRY_COMPILE([
+ unsigned char test[32] __attribute__ ((__aligned__ (__alignof__ (int))));
+ ],[
+ ac_cv_attribute_aligned=yes
+ ],[
+ ac_cv_attribute_aligned=no
+ ])])
+ if test "$ac_cv_attribute_aligned" = "yes"; then
+ AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1, [wheter the compiler supports __attribute__ ((__aligned__))])
+ fi
+
+
AC_DEFINE_UNQUOTED(PHP_USE_PHP_CRYPT_R, 1, [Whether PHP has to use its own crypt_r for blowfish, des, ext des and md5])
AC_DEFINE_UNQUOTED(PHP_STD_DES_CRYPT, 1, [Whether the system supports standard DES salt])
AC_DEFINE_UNQUOTED(PHP_BLOWFISH_CRYPT, 1, [Whether the system supports BlowFish salt])
Modified: php/php-src/branches/PHP_5_3/ext/standard/crypt_sha256.c
===================================================================
--- php/php-src/branches/PHP_5_3/ext/standard/crypt_sha256.c 2010-02-09 21:38:09 UTC (rev 294824)
+++ php/php-src/branches/PHP_5_3/ext/standard/crypt_sha256.c 2010-02-09 21:58:13 UTC (rev 294825)
@@ -18,6 +18,15 @@
# elif HAVE_STDINT_H
# include <stdint.h>
# endif
+# ifndef HAVE_ALIGNOF
+# include <stddef.h>
+# define __alignof__(type) offsetof (struct { char c; type member;}, member)
+# endif
+# if HAVE_ATTRIBUTE_ALIGNED
+# define ALIGNED(size) __attribute__ ((__aligned__ (size)))
+# else
+# define ALIGNED(size)
+# endif
#endif
#include <stdio.h>
@@ -342,10 +351,8 @@
__declspec(align(32)) unsigned char temp_result[32];
# endif
#else
- unsigned char alt_result[32]
- __attribute__ ((__aligned__ (__alignof__ (uint32_t))));
- unsigned char temp_result[32]
- __attribute__ ((__aligned__ (__alignof__ (uint32_t))));
+ unsigned char alt_result[32] ALIGNED(__alignof__ (uint32_t));
+ unsigned char temp_result[32] ALIGNED(__alignof__ (uint32_t));
#endif
struct sha256_ctx ctx;
Modified: php/php-src/branches/PHP_5_3/ext/standard/crypt_sha512.c
===================================================================
--- php/php-src/branches/PHP_5_3/ext/standard/crypt_sha512.c 2010-02-09 21:38:09 UTC (rev 294824)
+++ php/php-src/branches/PHP_5_3/ext/standard/crypt_sha512.c 2010-02-09 21:58:13 UTC (rev 294825)
@@ -17,6 +17,15 @@
# elif HAVE_STDINT_H
# include <stdint.h>
# endif
+# ifndef HAVE_ALIGNOF
+# include <stddef.h>
+# define __alignof__(type) offsetof (struct { char c; type member;}, member)
+# endif
+# if HAVE_ATTRIBUTE_ALIGNED
+# define ALIGNED(size) __attribute__ ((__aligned__ (size)))
+# else
+# define ALIGNED(size)
+# endif
#endif
#include <stdio.h>
@@ -370,10 +379,8 @@
__declspec(align(64)) unsigned char temp_result[64];
# endif
#else
- unsigned char alt_result[64]
- __attribute__ ((__aligned__ (__alignof__ (uint64_t))));
- unsigned char temp_result[64]
- __attribute__ ((__aligned__ (__alignof__ (uint64_t))));
+ unsigned char alt_result[64] ALIGNED(__alignof__ (uint64_t));
+ unsigned char temp_result[64] ALIGNED(__alignof__ (uint64_t));
#endif
struct sha512_ctx ctx;
struct sha512_ctx alt_ctx;
Modified: php/php-src/trunk/ext/standard/config.m4
===================================================================
--- php/php-src/trunk/ext/standard/config.m4 2010-02-09 21:38:09 UTC (rev 294824)
+++ php/php-src/trunk/ext/standard/config.m4 2010-02-09 21:58:13 UTC (rev 294825)
@@ -236,6 +236,41 @@
dnl If one of them is missing, use our own implementation, portable code is then possible
dnl
if test "$ac_cv_crypt_blowfish" = "no" || test "$ac_cv_crypt_des" = "no" || test "$ac_cv_crypt_ext_des" = "no" || test "x$php_crypt_r" = "x0"; then
+
+ dnl
+ dnl Check for __alignof__ support in the compiler
+ dnl
+ AC_CACHE_CHECK(whether the compiler supports __alignof__,ac_cv_alignof_exists,[
+ AC_TRY_COMPILE([
+int main() {
+ int align = __alignof__(int);
+ return 0;
+}
+ ],[
+ ac_cv_alignof_exists=yes
+ ],[
+ ac_cv_alignof_exists=no
+ ])])
+ if test "$ac_cv_alignof_exists" = "yes"; then
+ AC_DEFINE([HAVE_ALIGNOF], 1, [whether the compiler supports __alignof__])
+ fi
+
+ dnl
+ dnl Check for __attribute__ ((__aligned__)) support in the compiler
+ dnl
+ AC_CACHE_CHECK(whether the compiler supports aligned attribute,ac_cv_attribute_aligned,[
+ AC_TRY_COMPILE([
+ unsigned char test[32] __attribute__ ((__aligned__ (__alignof__ (int))));
+ ],[
+ ac_cv_attribute_aligned=yes
+ ],[
+ ac_cv_attribute_aligned=no
+ ])])
+ if test "$ac_cv_attribute_aligned" = "yes"; then
+ AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1, [wheter the compiler supports __attribute__ ((__aligned__))])
+ fi
+
+
AC_DEFINE_UNQUOTED(PHP_USE_PHP_CRYPT_R, 1, [Whether PHP has to use its own crypt_r for blowfish, des, ext des and md5])
AC_DEFINE_UNQUOTED(PHP_STD_DES_CRYPT, 1, [Whether the system supports standard DES salt])
AC_DEFINE_UNQUOTED(PHP_BLOWFISH_CRYPT, 1, [Whether the system supports BlowFish salt])
Modified: php/php-src/trunk/ext/standard/crypt_sha256.c
===================================================================
--- php/php-src/trunk/ext/standard/crypt_sha256.c 2010-02-09 21:38:09 UTC (rev 294824)
+++ php/php-src/trunk/ext/standard/crypt_sha256.c 2010-02-09 21:58:13 UTC (rev 294825)
@@ -18,6 +18,15 @@
# elif HAVE_STDINT_H
# include <stdint.h>
# endif
+# ifndef HAVE_ALIGNOF
+# include <stddef.h>
+# define __alignof__(type) offsetof (struct { char c; type member;}, member)
+# endif
+# if HAVE_ATTRIBUTE_ALIGNED
+# define ALIGNED(size) __attribute__ ((__aligned__ (size)))
+# else
+# define ALIGNED(size)
+# endif
#endif
#include <stdio.h>
@@ -335,10 +344,8 @@
__declspec(align(32)) unsigned char alt_result[32];
__declspec(align(32)) unsigned char temp_result[32];
#else
- unsigned char alt_result[32]
- __attribute__ ((__aligned__ (__alignof__ (uint32_t))));
- unsigned char temp_result[32]
- __attribute__ ((__aligned__ (__alignof__ (uint32_t))));
+ unsigned char alt_result[32] ALIGNED(__alignof__ (uint32_t));
+ unsigned char temp_result[32] ALIGNED(__alignof__ (uint32_t));
#endif
struct sha256_ctx ctx;
Modified: php/php-src/trunk/ext/standard/crypt_sha512.c
===================================================================
--- php/php-src/trunk/ext/standard/crypt_sha512.c 2010-02-09 21:38:09 UTC (rev 294824)
+++ php/php-src/trunk/ext/standard/crypt_sha512.c 2010-02-09 21:58:13 UTC (rev 294825)
@@ -17,6 +17,15 @@
# elif HAVE_STDINT_H
# include <stdint.h>
# endif
+# ifndef HAVE_ALIGNOF
+# include <stddef.h>
+# define __alignof__(type) offsetof (struct { char c; type member;}, member)
+# endif
+# if HAVE_ATTRIBUTE_ALIGNED
+# define ALIGNED(size) __attribute__ ((__aligned__ (size)))
+# else
+# define ALIGNED(size)
+# endif
#endif
#include <stdio.h>
@@ -363,10 +372,8 @@
__declspec(align(64)) unsigned char alt_result[64];
__declspec(align(64)) unsigned char temp_result[64];
#else
- unsigned char alt_result[64]
- __attribute__ ((__aligned__ (__alignof__ (uint64_t))));
- unsigned char temp_result[64]
- __attribute__ ((__aligned__ (__alignof__ (uint64_t))));
+ unsigned char alt_result[64] ALIGNED(__alignof__ (uint64_t));
+ unsigned char temp_result[64] ALIGNED(__alignof__ (uint64_t));
#endif
struct sha512_ctx ctx;
struct sha512_ctx alt_ctx;
--
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