--- /dev/null
+From b7e85069238c40eae54d0ca03ab6d5470d1815f9 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
+[Romain backport from gcc-5-branch]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ 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 +-
+ 10 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h
+index 6b5b3cd..d13dc34 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 b5bfd1c..166d3d2 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 dc58f0a..8b94568 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 7986928..a9d621c 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 1ba2a0c4..d67767e 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 ba4bd80..8978868 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 4a3cfff..d2ac437 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 4875706..671bde7 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 27481cf..c24d58c 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 6832d0b..cb15b4c 100644
+--- a/libgcc/config/xtensa/linux-unwind.h
++++ b/libgcc/config/xtensa/linux-unwind.h
+@@ -63,7 +63,7 @@ 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 */
+--
+2.9.5
+
--- /dev/null
+From c287e88cc3743bfa7e5719bc4dee327aa3950051 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
+
+(cherry picked from commit ecf0d1a107133c715763940c2b197aa814710e1b)
+[Romain rebase on 5.4]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ 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 +-
+ 10 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h
+index 86d17b1..909f68f 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 d65474f..9a226b1 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 0c270e4..7fa95d2 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 e54bf73..d35fc45 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 fb79a4d..b2f5ea4 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 dff1c20..1d88afe 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 0149468..9157535 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 e63091f..67033f0 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 fd83ba7..e3c9ef0 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 9daf738..ff6b663 100644
+--- a/libgcc/config/xtensa/linux-unwind.h
++++ b/libgcc/config/xtensa/linux-unwind.h
+@@ -64,7 +64,7 @@ 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 */
+--
+2.9.5
+
--- /dev/null
+From 35d8ca22047f101a700abb29cffbf03b81278a2b Mon Sep 17 00:00:00 2001
+From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 4 Jul 2017 10:23:57 +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-6-branch@249957 138bc75d-0d04-0410-961f-82ee72b054a4
+
+(cherry picked from commit b685411208e0aaa79190d54faf945763514706b8)
+[Romain rebase on gcc 6.4]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ 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 +-
+ 10 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h
+index 4512efb..06de45a 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 bdbba4a..e84812e 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 77b7c23..8bf5e82 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 540a0a2..29efbe3 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 75b7cf7..f964e24 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 2304142..30f25ea 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 9a2657f..e47493d 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 e389cac..0bf43ba 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 796e976..75f8890 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 9872492..586a9d4 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 */
+--
+2.9.5
+