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Merge branch 'PHP-7.4' into PHP-8.0

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* PHP-7.4:
  Changed PowerPC CPU registers used by Zend VM to work around GCC bug.
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Dmitry Stogov committed 2021-03-31 13:11:11 +03:00
2 parents 443478109b 39d8fc1edc
commit e0996decc3
2 files changed
+9 -4
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NEWS
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@@ -2,6 +2,11 @@ PHP NEWS
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
?? ??? 2021, PHP 8.0.5
- Core:
. Changed PowerPC CPU registers used by Zend VM to work around GCC bug.
Old registers (r28/r29) might be clobbered by _restgpr routine used for
return from C function compiled with -Os. (Dmitry)
- DOM:
. Fixed bug #66783 (UAF when appending DOMDocument to element). (cmb)
Zend/zend_execute.c
+4 -4
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@@ -54,11 +54,11 @@
# define ZEND_VM_FP_GLOBAL_REG "%r14"
# define ZEND_VM_IP_GLOBAL_REG "%r15"
# elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__powerpc64__)
# define ZEND_VM_FP_GLOBAL_REG "r28"
# define ZEND_VM_IP_GLOBAL_REG "r29"
# define ZEND_VM_FP_GLOBAL_REG "r14"
# define ZEND_VM_IP_GLOBAL_REG "r15"
# elif defined(__IBMC__) && ZEND_GCC_VERSION >= 4002 && defined(__powerpc64__)
# define ZEND_VM_FP_GLOBAL_REG "r28"
# define ZEND_VM_IP_GLOBAL_REG "r29"
# define ZEND_VM_FP_GLOBAL_REG "r14"
# define ZEND_VM_IP_GLOBAL_REG "r15"
# elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__aarch64__)
# define ZEND_VM_FP_GLOBAL_REG "x27"
# define ZEND_VM_IP_GLOBAL_REG "x28"