* gnu/packages/gcc.scm (gcc@6)[source]: Add snippet to adjust linux-unwind.h to changes in glibc@2.26. Add patch. * gnu/packages/patches/gcc-libsanitizer-fix.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it.
		
			
				
	
	
		
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| https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=8937b94d1a643fd9760714642296d034a45254a8
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| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81066
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| 
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| This patch can be removed when gcc-6.5.0 is released
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| 
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| From 8937b94d1a643fd9760714642296d034a45254a8 Mon Sep 17 00:00:00 2001
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| From: doko <doko@138bc75d-0d04-0410-961f-82ee72b054a4>
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| Date: Thu, 7 Sep 2017 07:15:24 +0000
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| Subject: [PATCH] 2017-09-07  Matthias Klose  <doko@ubuntu.com>
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| 
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|         Backported from mainline
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|         2017-07-14  Jakub Jelinek  <jakub@redhat.com>
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| 
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|         PR sanitizer/81066
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|         * sanitizer_common/sanitizer_linux.h: Cherry-pick upstream r307969.
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|         * sanitizer_common/sanitizer_linux.cc: Likewise.
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|         * sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc: Likewise.
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|         * tsan/tsan_platform_linux.cc: Likewise.
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| 
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| 
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| git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@251828 138bc75d-0d04-0410-961f-82ee72b054a4
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| ---
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|  libsanitizer/ChangeLog                                        | 11 +++++++++++
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|  libsanitizer/sanitizer_common/sanitizer_linux.cc              |  3 +--
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|  libsanitizer/sanitizer_common/sanitizer_linux.h               |  4 +---
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|  .../sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc  |  2 +-
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|  libsanitizer/tsan/tsan_platform_linux.cc                      |  2 +-
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|  5 files changed, 15 insertions(+), 7 deletions(-)
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| 
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| diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
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| index 252cd09..d988b28 100644
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| --- a/libsanitizer/ChangeLog
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| +++ b/libsanitizer/ChangeLog
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| @@ -1,3 +1,14 @@
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| +2017-09-07  Matthias Klose  <doko@ubuntu.com>
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| +
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| +	Backported from mainline
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| +	2017-07-14  Jakub Jelinek  <jakub@redhat.com>
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| +
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| +	PR sanitizer/81066
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| +	* sanitizer_common/sanitizer_linux.h: Cherry-pick upstream r307969.
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| +	* sanitizer_common/sanitizer_linux.cc: Likewise.
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| +	* sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc: Likewise.
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| +	* tsan/tsan_platform_linux.cc: Likewise.
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| +
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|  2017-07-04  Release Manager
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|  
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|  	* GCC 6.4.0 released.
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| diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.cc b/libsanitizer/sanitizer_common/sanitizer_linux.cc
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| index 2cefa20..223d9c6 100644
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| --- a/libsanitizer/sanitizer_common/sanitizer_linux.cc
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| +++ b/libsanitizer/sanitizer_common/sanitizer_linux.cc
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| @@ -546,8 +546,7 @@ uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
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|  }
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|  #endif
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|  
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| -uptr internal_sigaltstack(const struct sigaltstack *ss,
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| -                         struct sigaltstack *oss) {
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| +uptr internal_sigaltstack(const void *ss, void *oss) {
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|    return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);
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|  }
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|  
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| diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.h b/libsanitizer/sanitizer_common/sanitizer_linux.h
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| index 4497702..1594058 100644
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| --- a/libsanitizer/sanitizer_common/sanitizer_linux.h
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| +++ b/libsanitizer/sanitizer_common/sanitizer_linux.h
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| @@ -19,7 +19,6 @@
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|  #include "sanitizer_platform_limits_posix.h"
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|  
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|  struct link_map;  // Opaque type returned by dlopen().
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| -struct sigaltstack;
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|  
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|  namespace __sanitizer {
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|  // Dirent structure for getdents(). Note that this structure is different from
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| @@ -28,8 +27,7 @@ struct linux_dirent;
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|  
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|  // Syscall wrappers.
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|  uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
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| -uptr internal_sigaltstack(const struct sigaltstack* ss,
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| -                          struct sigaltstack* oss);
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| +uptr internal_sigaltstack(const void* ss, void* oss);
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|  uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
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|      __sanitizer_sigset_t *oldset);
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|  void internal_sigfillset(__sanitizer_sigset_t *set);
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| diff --git a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
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| index c919e4f..014162af 100644
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| --- a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
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| +++ b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
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| @@ -267,7 +267,7 @@ static int TracerThread(void* argument) {
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|  
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|    // Alternate stack for signal handling.
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|    InternalScopedBuffer<char> handler_stack_memory(kHandlerStackSize);
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| -  struct sigaltstack handler_stack;
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| +  stack_t handler_stack;
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|    internal_memset(&handler_stack, 0, sizeof(handler_stack));
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|    handler_stack.ss_sp = handler_stack_memory.data();
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|    handler_stack.ss_size = kHandlerStackSize;
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| diff --git a/libsanitizer/tsan/tsan_platform_linux.cc b/libsanitizer/tsan/tsan_platform_linux.cc
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| index 09cec5f..908f4fe 100644
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| --- a/libsanitizer/tsan/tsan_platform_linux.cc
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| +++ b/libsanitizer/tsan/tsan_platform_linux.cc
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| @@ -291,7 +291,7 @@ bool IsGlobalVar(uptr addr) {
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|  int ExtractResolvFDs(void *state, int *fds, int nfd) {
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|  #if SANITIZER_LINUX
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|    int cnt = 0;
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| -  __res_state *statp = (__res_state*)state;
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| +  struct __res_state *statp = (struct __res_state*)state;
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|    for (int i = 0; i < MAXNS && cnt < nfd; i++) {
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|      if (statp->_u._ext.nsaddrs[i] && statp->_u._ext.nssocks[i] != -1)
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|        fds[cnt++] = statp->_u._ext.nssocks[i];
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| -- 
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| 2.9.3
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| 
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