178 lines
6.8 KiB
Diff
178 lines
6.8 KiB
Diff
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From b685411208e0aaa79190d54faf945763514706b8 Mon Sep 17 00:00:00 2001
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From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>
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Date: Tue, 4 Jul 2017 10:23:57 +0000
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Subject: [PATCH] Use ucontext_t not struct ucontext in linux-unwind.h files.
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Current glibc no longer gives the ucontext_t type the tag struct
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ucontext, to conform with POSIX namespace rules. This requires
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various linux-unwind.h files in libgcc, that were previously using
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struct ucontext, to be fixed to use ucontext_t instead. This is
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similar to the removal of the struct siginfo tag from siginfo_t some
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years ago.
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This patch changes those files to use ucontext_t instead. As the
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standard name that should be unconditionally safe, so this is not
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restricted to architectures supported by glibc, or conditioned on the
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glibc version.
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Tested compilation together with current glibc with glibc's
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build-many-glibcs.py.
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* config/aarch64/linux-unwind.h (aarch64_fallback_frame_state),
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config/alpha/linux-unwind.h (alpha_fallback_frame_state),
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config/bfin/linux-unwind.h (bfin_fallback_frame_state),
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config/i386/linux-unwind.h (x86_64_fallback_frame_state,
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x86_fallback_frame_state), config/m68k/linux-unwind.h (struct
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uw_ucontext), config/nios2/linux-unwind.h (struct nios2_ucontext),
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config/pa/linux-unwind.h (pa32_fallback_frame_state),
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config/sh/linux-unwind.h (sh_fallback_frame_state),
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config/tilepro/linux-unwind.h (tile_fallback_frame_state),
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config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Use
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ucontext_t instead of struct ucontext.
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@249957 138bc75d-0d04-0410-961f-82ee72b054a4
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---
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libgcc/ChangeLog (REMOVED) | 14 ++++++++++++++
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libgcc/config/aarch64/linux-unwind.h | 2 +-
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libgcc/config/alpha/linux-unwind.h | 2 +-
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libgcc/config/bfin/linux-unwind.h | 2 +-
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libgcc/config/i386/linux-unwind.h | 4 ++--
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libgcc/config/m68k/linux-unwind.h | 2 +-
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libgcc/config/nios2/linux-unwind.h | 2 +-
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libgcc/config/pa/linux-unwind.h | 2 +-
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libgcc/config/sh/linux-unwind.h | 2 +-
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libgcc/config/tilepro/linux-unwind.h | 2 +-
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libgcc/config/xtensa/linux-unwind.h | 2 +-
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11 files changed, 25 insertions(+), 11 deletions(-)
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diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h
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index 4512efb..06de45a 100644
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--- a/libgcc/config/aarch64/linux-unwind.h
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+++ b/libgcc/config/aarch64/linux-unwind.h
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@@ -52,7 +52,7 @@ aarch64_fallback_frame_state (struct _Unwind_Context *context,
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struct rt_sigframe
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{
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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};
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struct rt_sigframe *rt_;
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diff --git a/libgcc/config/alpha/linux-unwind.h b/libgcc/config/alpha/linux-unwind.h
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index bdbba4a..e84812e 100644
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--- a/libgcc/config/alpha/linux-unwind.h
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+++ b/libgcc/config/alpha/linux-unwind.h
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@@ -51,7 +51,7 @@ alpha_fallback_frame_state (struct _Unwind_Context *context,
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{
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struct rt_sigframe {
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *rt_ = context->cfa;
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sc = &rt_->uc.uc_mcontext;
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}
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diff --git a/libgcc/config/bfin/linux-unwind.h b/libgcc/config/bfin/linux-unwind.h
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index 77b7c23..8bf5e82 100644
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--- a/libgcc/config/bfin/linux-unwind.h
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+++ b/libgcc/config/bfin/linux-unwind.h
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@@ -52,7 +52,7 @@ bfin_fallback_frame_state (struct _Unwind_Context *context,
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void *puc;
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char retcode[8];
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *rt_ = context->cfa;
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/* The void * cast is necessary to avoid an aliasing warning.
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diff --git a/libgcc/config/i386/linux-unwind.h b/libgcc/config/i386/linux-unwind.h
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index 540a0a2..29efbe3 100644
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--- a/libgcc/config/i386/linux-unwind.h
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+++ b/libgcc/config/i386/linux-unwind.h
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@@ -58,7 +58,7 @@ x86_64_fallback_frame_state (struct _Unwind_Context *context,
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if (*(unsigned char *)(pc+0) == 0x48
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&& *(unsigned long long *)(pc+1) == RT_SIGRETURN_SYSCALL)
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{
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- struct ucontext *uc_ = context->cfa;
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+ ucontext_t *uc_ = context->cfa;
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/* The void * cast is necessary to avoid an aliasing warning.
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The aliasing warning is correct, but should not be a problem
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because it does not alias anything. */
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@@ -138,7 +138,7 @@ x86_fallback_frame_state (struct _Unwind_Context *context,
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siginfo_t *pinfo;
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void *puc;
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *rt_ = context->cfa;
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/* The void * cast is necessary to avoid an aliasing warning.
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The aliasing warning is correct, but should not be a problem
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diff --git a/libgcc/config/m68k/linux-unwind.h b/libgcc/config/m68k/linux-unwind.h
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index 75b7cf7..f964e24 100644
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--- a/libgcc/config/m68k/linux-unwind.h
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+++ b/libgcc/config/m68k/linux-unwind.h
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@@ -33,7 +33,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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/* <sys/ucontext.h> is unfortunately broken right now. */
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struct uw_ucontext {
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unsigned long uc_flags;
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- struct ucontext *uc_link;
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+ ucontext_t *uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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unsigned long uc_filler[80];
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diff --git a/libgcc/config/pa/linux-unwind.h b/libgcc/config/pa/linux-unwind.h
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index 9a2657f..e47493d 100644
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--- a/libgcc/config/pa/linux-unwind.h
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+++ b/libgcc/config/pa/linux-unwind.h
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@@ -80,7 +80,7 @@ pa32_fallback_frame_state (struct _Unwind_Context *context,
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struct sigcontext *sc;
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struct rt_sigframe {
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *frame;
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/* rt_sigreturn trampoline:
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diff --git a/libgcc/config/sh/linux-unwind.h b/libgcc/config/sh/linux-unwind.h
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index e389cac..0bf43ba 100644
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--- a/libgcc/config/sh/linux-unwind.h
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+++ b/libgcc/config/sh/linux-unwind.h
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@@ -180,7 +180,7 @@ sh_fallback_frame_state (struct _Unwind_Context *context,
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{
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struct rt_sigframe {
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *rt_ = context->cfa;
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/* The void * cast is necessary to avoid an aliasing warning.
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The aliasing warning is correct, but should not be a problem
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diff --git a/libgcc/config/tilepro/linux-unwind.h b/libgcc/config/tilepro/linux-unwind.h
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index 796e976..75f8890 100644
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--- a/libgcc/config/tilepro/linux-unwind.h
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+++ b/libgcc/config/tilepro/linux-unwind.h
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@@ -61,7 +61,7 @@ tile_fallback_frame_state (struct _Unwind_Context *context,
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struct rt_sigframe {
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unsigned char save_area[C_ABI_SAVE_AREA_SIZE];
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *rt_;
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/* Return if this is not a signal handler. */
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diff --git a/libgcc/config/xtensa/linux-unwind.h b/libgcc/config/xtensa/linux-unwind.h
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index 9872492..586a9d4 100644
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--- a/libgcc/config/xtensa/linux-unwind.h
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+++ b/libgcc/config/xtensa/linux-unwind.h
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@@ -67,7 +67,7 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context,
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struct rt_sigframe {
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siginfo_t info;
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- struct ucontext uc;
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+ ucontext_t uc;
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} *rt_;
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/* movi a2, __NR_rt_sigreturn; syscall */
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--
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2.9.3
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