52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
From 6207948a02e9a116a7c64866235473e89be2edb5 Mon Sep 17 00:00:00 2001
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From: Jonathan Yong <10walls@gmail.com>
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Date: Thu, 30 Oct 2014 17:15:02 +0800
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Subject: [PATCH 08/12] Cygwin: __cxa-atexit
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---
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gcc/config.gcc | 1 +
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libgcc/config/i386/cygming-crtbegin.c | 7 +++++++
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2 files changed, 8 insertions(+)
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diff --git a/gcc/config.gcc b/gcc/config.gcc
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index 5725704e06b..96a8bc2a882 100644
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--- a/gcc/config.gcc
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+++ b/gcc/config.gcc
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@@ -2843,6 +2843,7 @@ mipstx39-*-elf* | mipstx39el-*-elf*)
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mmix-knuth-mmixware)
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tm_file="${tm_file} newlib-stdint.h"
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use_gcc_stdint=wrap
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+ default_use_cxa_atexit=yes
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;;
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mn10300-*-*)
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tm_file="elfos.h newlib-stdint.h ${tm_file}"
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diff --git a/libgcc/config/i386/cygming-crtbegin.c b/libgcc/config/i386/cygming-crtbegin.c
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index f742a3be2cd..ec4616fbc78 100644
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--- a/libgcc/config/i386/cygming-crtbegin.c
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+++ b/libgcc/config/i386/cygming-crtbegin.c
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@@ -103,6 +103,9 @@ void *__dso_handle = &__ImageBase;
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void *__dso_handle = 0;
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#endif
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+/* see atexit.c in newlib Cygwin */
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+extern int __cxa_atexit(void (*)(void *), void *, void *);
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+
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#endif /* __CYGWIN__ */
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@@ -145,7 +148,11 @@ __gcc_register_frame (void)
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/* If we use the __cxa_atexit method to register C++ dtors
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at object construction, also use atexit to register eh frame
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info cleanup. */
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+#ifdef __CYGWIN__
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+ __cxa_atexit((void *)__gcc_deregister_frame, NULL, (void *)&__dso_handle);
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+#else
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atexit(__gcc_deregister_frame);
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+#endif /* __CYGWIN__ */
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#endif /* DEFAULT_USE_CXA_ATEXIT */
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}
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--
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2.45.1
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