[gentoo-commits] gentoo commit in src/patchsets/gcc/4.9.4/gentoo: 95_all_asan-signal_h.patch 96_all_ucontext-to-ucontext_t.patch 97_all_no-sigaltstack.patch README.history

[Sergei Trofimovich (slyfox)]

slyfox      17/10/27 22:36:03

  Modified:             README.history
  Added:                95_all_asan-signal_h.patch
                        96_all_ucontext-to-ucontext_t.patch
                        97_all_no-sigaltstack.patch
  Log:
  gcc/4.9.4: apply patches to fix build against glibc-2.26, bug #629502
  
  3 patches here (picked as-is from 5.4.0):
  
  - 95_all_asan-signal_h.patch: add missing '<signal.h>' header
  - 96_all_ucontext-to-ucontext_t.patch: change 'struct ucontext' to 'ucontext_t'
  - 97_all_no-sigaltstack.patch: remove 'sigaltstack' usage
  
  Bug: https://bugs.gentoo.org/629502

Revision  Changes    Path
1.3                  src/patchsets/gcc/4.9.4/gentoo/README.history

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/README.history?rev=1.3&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/README.history?rev=1.3&content-type=text/plain
diff : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/README.history?r1=1.2&r2=1.3

Index: README.history
===================================================================
RCS file: /var/cvsroot/gentoo/src/patchsets/gcc/4.9.4/gentoo/README.history,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- README.history	6 Aug 2017 14:46:49 -0000	1.2
+++ README.history	27 Oct 2017 22:36:03 -0000	1.3
@@ -1,6 +1,9 @@
+1.2		27 Oct 2017
+	+ 95_all_asan-signal_h.patch
+	+ 96_all_ucontext-to-ucontext_t.patch
+	+ 97_all_no-sigaltstack.patch
 1.1		06 Aug 2017
 	+ 94_all_compatibility_fix_with_perl_5.26.patch
-
 1.0		14 Aug 2016
 	+ 09_all_default-ssp.patch
 	+ 10_all_default-fortify-source.patch



1.1                  src/patchsets/gcc/4.9.4/gentoo/95_all_asan-signal_h.patch

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/95_all_asan-signal_h.patch?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/95_all_asan-signal_h.patch?rev=1.1&content-type=text/plain

Index: 95_all_asan-signal_h.patch
===================================================================
Fix error: ‘SIGSEGV’ was not declared in this scope

https://bugs.gentoo.org/629502#c9
https://patchwork.ozlabs.org/patch/725596/

--- a/libsanitizer/asan/asan_linux.cc
+++ b/libsanitizer/asan/asan_linux.cc
@@ -29,6 +29,7 @@
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <pthread.h>
+#include <signal.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <unwind.h>



1.1                  src/patchsets/gcc/4.9.4/gentoo/96_all_ucontext-to-ucontext_t.patch

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/96_all_ucontext-to-ucontext_t.patch?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/96_all_ucontext-to-ucontext_t.patch?rev=1.1&content-type=text/plain

Index: 96_all_ucontext-to-ucontext_t.patch
===================================================================
https://bugs.gentoo.org/629502

From ecf0d1a107133c715763940c2b197aa814710e1b Mon Sep 17 00:00:00 2001
From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 4 Jul 2017 10:25:10 +0000
Subject: [PATCH] Use ucontext_t not struct ucontext in linux-unwind.h files.

Current glibc no longer gives the ucontext_t type the tag struct
ucontext, to conform with POSIX namespace rules.  This requires
various linux-unwind.h files in libgcc, that were previously using
struct ucontext, to be fixed to use ucontext_t instead.  This is
similar to the removal of the struct siginfo tag from siginfo_t some
years ago.

This patch changes those files to use ucontext_t instead.  As the
standard name that should be unconditionally safe, so this is not
restricted to architectures supported by glibc, or conditioned on the
glibc version.

Tested compilation together with current glibc with glibc's
build-many-glibcs.py.

	* config/aarch64/linux-unwind.h (aarch64_fallback_frame_state),
	config/alpha/linux-unwind.h (alpha_fallback_frame_state),
	config/bfin/linux-unwind.h (bfin_fallback_frame_state),
	config/i386/linux-unwind.h (x86_64_fallback_frame_state,
	x86_fallback_frame_state), config/m68k/linux-unwind.h (struct
	uw_ucontext), config/nios2/linux-unwind.h (struct nios2_ucontext),
	config/pa/linux-unwind.h (pa32_fallback_frame_state),
	config/sh/linux-unwind.h (sh_fallback_frame_state),
	config/tilepro/linux-unwind.h (tile_fallback_frame_state),
	config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Use
	ucontext_t instead of struct ucontext.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-5-branch@249958 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libgcc/config/aarch64/linux-unwind.h |  2 +-
 libgcc/config/alpha/linux-unwind.h   |  2 +-
 libgcc/config/bfin/linux-unwind.h    |  2 +-
 libgcc/config/i386/linux-unwind.h    |  4 ++--
 libgcc/config/m68k/linux-unwind.h    |  2 +-
 libgcc/config/nios2/linux-unwind.h   |  2 +-
 libgcc/config/pa/linux-unwind.h      |  2 +-
 libgcc/config/sh/linux-unwind.h      |  2 +-
 libgcc/config/tilepro/linux-unwind.h |  2 +-
 libgcc/config/xtensa/linux-unwind.h  |  2 +-
 11 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h
index 86d17b1c798..909f68f7311 100644
--- a/libgcc/config/aarch64/linux-unwind.h
+++ b/libgcc/config/aarch64/linux-unwind.h
@@ -52,7 +52,7 @@ aarch64_fallback_frame_state (struct _Unwind_Context *context,
   struct rt_sigframe
   {
     siginfo_t info;
-    struct ucontext uc;
+    ucontext_t uc;
   };
 
   struct rt_sigframe *rt_;
diff --git a/libgcc/config/alpha/linux-unwind.h b/libgcc/config/alpha/linux-unwind.h
index d65474fec12..9a226b195b5 100644
--- a/libgcc/config/alpha/linux-unwind.h
+++ b/libgcc/config/alpha/linux-unwind.h
@@ -51,7 +51,7 @@ alpha_fallback_frame_state (struct _Unwind_Context *context,
     {
       struct rt_sigframe {
 	siginfo_t info;
-	struct ucontext uc;
+	ucontext_t uc;
       } *rt_ = context->cfa;
       sc = &rt_->uc.uc_mcontext;
     }
diff --git a/libgcc/config/bfin/linux-unwind.h b/libgcc/config/bfin/linux-unwind.h
index 0c270e435c7..7fa95d2dc96 100644
--- a/libgcc/config/bfin/linux-unwind.h
+++ b/libgcc/config/bfin/linux-unwind.h
@@ -52,7 +52,7 @@ bfin_fallback_frame_state (struct _Unwind_Context *context,
 	void *puc;
 	char retcode[8];
 	siginfo_t info;
-	struct ucontext uc;
+	ucontext_t uc;
       } *rt_ = context->cfa;
 
       /* The void * cast is necessary to avoid an aliasing warning.
diff --git a/libgcc/config/i386/linux-unwind.h b/libgcc/config/i386/linux-unwind.h
index e54bf73b1fd..d35fc4566ce 100644
--- a/libgcc/config/i386/linux-unwind.h
+++ b/libgcc/config/i386/linux-unwind.h
@@ -58,7 +58,7 @@ x86_64_fallback_frame_state (struct _Unwind_Context *context,
   if (*(unsigned char *)(pc+0) == 0x48
       && *(unsigned long long *)(pc+1) == RT_SIGRETURN_SYSCALL)
     {
-      struct ucontext *uc_ = context->cfa;
+      ucontext_t *uc_ = context->cfa;
       /* The void * cast is necessary to avoid an aliasing warning.
          The aliasing warning is correct, but should not be a problem
          because it does not alias anything.  */
@@ -138,7 +138,7 @@ x86_fallback_frame_state (struct _Unwind_Context *context,
 	siginfo_t *pinfo;
 	void *puc;
 	siginfo_t info;
-	struct ucontext uc;
+	ucontext_t uc;
       } *rt_ = context->cfa;
       /* The void * cast is necessary to avoid an aliasing warning.
          The aliasing warning is correct, but should not be a problem
diff --git a/libgcc/config/m68k/linux-unwind.h b/libgcc/config/m68k/linux-unwind.h
index fb79a4d63cd..b2f5ea4cd7c 100644
--- a/libgcc/config/m68k/linux-unwind.h
+++ b/libgcc/config/m68k/linux-unwind.h
@@ -33,7 +33,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 /* <sys/ucontext.h> is unfortunately broken right now.  */
 struct uw_ucontext {
 	unsigned long	  uc_flags;
-	struct ucontext  *uc_link;
+	ucontext_t	 *uc_link;
 	stack_t		  uc_stack;
 	mcontext_t	  uc_mcontext;
 	unsigned long	  uc_filler[80];
diff --git a/libgcc/config/nios2/linux-unwind.h b/libgcc/config/nios2/linux-unwind.h
index dff1c20076e..1d88afecb12 100644
--- a/libgcc/config/nios2/linux-unwind.h
+++ b/libgcc/config/nios2/linux-unwind.h
@@ -38,7 +38,7 @@ struct nios2_mcontext {
 
 struct nios2_ucontext {
   unsigned long uc_flags;
-  struct ucontext *uc_link;
+  ucontext_t *uc_link;
   stack_t uc_stack;
   struct nios2_mcontext uc_mcontext;
   sigset_t uc_sigmask;	/* mask last for extensibility */
diff --git a/libgcc/config/pa/linux-unwind.h b/libgcc/config/pa/linux-unwind.h
index 01494685ea4..91575356803 100644
--- a/libgcc/config/pa/linux-unwind.h
+++ b/libgcc/config/pa/linux-unwind.h
@@ -80,7 +80,7 @@ pa32_fallback_frame_state (struct _Unwind_Context *context,
   struct sigcontext *sc;
   struct rt_sigframe {
     siginfo_t info;
-    struct ucontext uc;
+    ucontext_t uc;
   } *frame;
 
   /* rt_sigreturn trampoline:
diff --git a/libgcc/config/sh/linux-unwind.h b/libgcc/config/sh/linux-unwind.h
index e63091f287c..67033f06b4b 100644
--- a/libgcc/config/sh/linux-unwind.h
+++ b/libgcc/config/sh/linux-unwind.h
@@ -180,7 +180,7 @@ sh_fallback_frame_state (struct _Unwind_Context *context,
     {
       struct rt_sigframe {
 	siginfo_t info;
-	struct ucontext uc;
+	ucontext_t uc;
       } *rt_ = context->cfa;
       /* The void * cast is necessary to avoid an aliasing warning.
          The aliasing warning is correct, but should not be a problem
diff --git a/libgcc/config/tilepro/linux-unwind.h b/libgcc/config/tilepro/linux-unwind.h
index fd83ba7c275..e3c9ef0840d 100644
--- a/libgcc/config/tilepro/linux-unwind.h
+++ b/libgcc/config/tilepro/linux-unwind.h
@@ -61,7 +61,7 @@ tile_fallback_frame_state (struct _Unwind_Context *context,
   struct rt_sigframe {
     unsigned char save_area[C_ABI_SAVE_AREA_SIZE];
     siginfo_t info;
-    struct ucontext uc;
+    ucontext_t uc;
   } *rt_;
 
   /* Return if this is not a signal handler.  */
diff --git a/libgcc/config/xtensa/linux-unwind.h b/libgcc/config/xtensa/linux-unwind.h
index 9a67b5d2b46..98b7ea60e81 100644
--- a/libgcc/config/xtensa/linux-unwind.h
+++ b/libgcc/config/xtensa/linux-unwind.h
@@ -67,7 +67,7 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context,
 
   struct rt_sigframe {
     siginfo_t info;
-    struct ucontext uc;
+    ucontext_t uc;
   } *rt_;
 
   /* movi a2, __NR_rt_sigreturn; syscall */
-- 
2.14.1




1.1                  src/patchsets/gcc/4.9.4/gentoo/97_all_no-sigaltstack.patch

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/97_all_no-sigaltstack.patch?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/4.9.4/gentoo/97_all_no-sigaltstack.patch?rev=1.1&content-type=text/plain

Index: 97_all_no-sigaltstack.patch
===================================================================
https://bugs.gentoo.org/629502

commit 67dce0587409353e1b6e38c4b33ed89d4ccabe5c
Author: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri Jul 14 09:10:45 2017 +0000

            PR sanitizer/81066
            * sanitizer_common/sanitizer_linux.h: Cherry-pick upstream r307969.
            * sanitizer_common/sanitizer_linux.cc: Likewise.
            * sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc: Likewise.
            * tsan/tsan_platform_linux.cc: Likewise.
    
    
    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250200 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.cc b/libsanitizer/sanitizer_common/sanitizer_linux.cc
index 806fcd5e284..5b6f18602e7 100644
--- a/libsanitizer/sanitizer_common/sanitizer_linux.cc
+++ b/libsanitizer/sanitizer_common/sanitizer_linux.cc
@@ -605,3 +605,2 @@ uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
 
-uptr internal_sigaltstack(const struct sigaltstack *ss,
-                         struct sigaltstack *oss) {
+uptr internal_sigaltstack(const void *ss, void *oss) {
diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.h b/libsanitizer/sanitizer_common/sanitizer_linux.h
index 895bfc18195..a42df576405 100644
--- a/libsanitizer/sanitizer_common/sanitizer_linux.h
+++ b/libsanitizer/sanitizer_common/sanitizer_linux.h
@@ -19,7 +19,6 @@
 #include "sanitizer_platform_limits_posix.h"
 
 struct link_map;  // Opaque type returned by dlopen().
-struct sigaltstack;
 
 namespace __sanitizer {
 // Dirent structure for getdents(). Note that this structure is different from
@@ -28,2 +27,1 @@ struct linux_dirent;
-uptr internal_sigaltstack(const struct sigaltstack* ss,
-                          struct sigaltstack* oss);
+uptr internal_sigaltstack(const void* ss, void* oss);
diff --git a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
index 891386dc0ba..234e8c652c6 100644
--- a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
+++ b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
@@ -273,7 +273,7 @@ static int TracerThread(void* argument) {
 
   // Alternate stack for signal handling.
   InternalScopedBuffer<char> handler_stack_memory(kHandlerStackSize);
-  struct sigaltstack handler_stack;
+  stack_t handler_stack;
   internal_memset(&handler_stack, 0, sizeof(handler_stack));
   handler_stack.ss_sp = handler_stack_memory.data();
   handler_stack.ss_size = kHandlerStackSize;
diff --git a/libsanitizer/tsan/tsan_platform_linux.cc b/libsanitizer/tsan/tsan_platform_linux.cc
index 2ed5718a12e..6f972ab0dd6 100644
--- a/libsanitizer/tsan/tsan_platform_linux.cc
+++ b/libsanitizer/tsan/tsan_platform_linux.cc
@@ -287,7 +287,7 @@ void InitializePlatform() {
 int ExtractResolvFDs(void *state, int *fds, int nfd) {
 #if SANITIZER_LINUX && !SANITIZER_ANDROID
   int cnt = 0;
-  __res_state *statp = (__res_state*)state;
+  struct __res_state *statp = (struct __res_state*)state;
   for (int i = 0; i < MAXNS && cnt < nfd; i++) {
     if (statp->_u._ext.nsaddrs[i] && statp->_u._ext.nssocks[i] != -1)
       fds[cnt++] = statp->_u._ext.nssocks[i];