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52 lines
2.0 KiB
Diff
52 lines
2.0 KiB
Diff
From 2fcc388d9bf238673ed84b8f38d7753279aea48c Mon Sep 17 00:00:00 2001
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From: Michael Orlitzky <michael@orlitzky.com>
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Date: Thu, 4 Aug 2016 11:42:56 -0400
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Subject: [PATCH 1/1] Zend/zend_operators.h: disable x86 assembly on all newer
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GCC-4.x.
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In bug 69896, a fix was committed to work around a build error: 'asm'
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operand has impossible constraints, in zend_operators.h, on x86. At
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the time, the problem was only visible with gcc-4.8, and the fix was
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to disable that chunk of assembly for gcc-4.8. With gcc-4.9, the
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problem persists, so we now need to check for gcc-4.9 (at least) in
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addition to gcc-4.8.
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This commit modifies the earlier conditional that checks for
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gcc-4.8. The existing check was for equality on the minor component of
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the gcc version, namely 8. The == operator that performs the
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comparison has been changed to <=, so that it catches any gcc-4.x with
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x >= 8. This has been tested and fixes the build on x86 hardware with
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gcc-4.9.
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PHP-Bug: 69896
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Gentoo-Bug: 571658
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---
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Zend/zend_operators.h | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/Zend/zend_operators.h b/Zend/zend_operators.h
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index 3705022..dd7c354 100644
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--- a/Zend/zend_operators.h
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+++ b/Zend/zend_operators.h
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@@ -520,7 +520,7 @@ static zend_always_inline void fast_long_decrement_function(zval *op1)
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static zend_always_inline void fast_long_add_function(zval *result, zval *op1, zval *op2)
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{
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-#if defined(__GNUC__) && defined(__i386__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__)
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+#if defined(__GNUC__) && defined(__i386__) && !(4 == __GNUC__ && 8 <= __GNUC_MINOR__)
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__asm__(
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"movl (%1), %%eax\n\t"
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"addl (%2), %%eax\n\t"
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@@ -606,7 +606,7 @@ static zend_always_inline int fast_add_function(zval *result, zval *op1, zval *o
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static zend_always_inline void fast_long_sub_function(zval *result, zval *op1, zval *op2)
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{
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-#if defined(__GNUC__) && defined(__i386__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__)
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+#if defined(__GNUC__) && defined(__i386__) && !(4 == __GNUC__ && 8 <= __GNUC_MINOR__)
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__asm__(
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"movl (%1), %%eax\n\t"
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"subl (%2), %%eax\n\t"
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--
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2.7.3
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