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- From 5266910fed23d6d7f101a878dd8a28d178697ec5 Mon Sep 17 00:00:00 2001
- From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>
- Date: Wed, 28 Jun 2017 09:21:16 +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/riscv/linux-unwind.h (riscv_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/trunk@249731 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/riscv/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 +-
- 12 files changed, 27 insertions(+), 12 deletions(-)
- diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h
- index d5d6980442f..d46d5f53be3 100644
- --- a/libgcc/config/aarch64/linux-unwind.h
- +++ b/libgcc/config/aarch64/linux-unwind.h
- @@ -55,7 +55,7 @@ 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 a91a5f4fe26..7202516581d 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 9412c7652b8..37e9feb6965 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 b1d5040a687..2009ad72260 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 82c7a297a6d..9ea39d454aa 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 ae82efd6de6..204359d7b92 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 580c18dad69..c2c3409bcc1 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/riscv/linux-unwind.h b/libgcc/config/riscv/linux-unwind.h
- index a051a2869d4..1c8aeff7ef0 100644
- --- a/libgcc/config/riscv/linux-unwind.h
- +++ b/libgcc/config/riscv/linux-unwind.h
- @@ -42,7 +42,7 @@ riscv_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/sh/linux-unwind.h b/libgcc/config/sh/linux-unwind.h
- index 1038caeb5c3..a8c98220282 100644
- --- a/libgcc/config/sh/linux-unwind.h
- +++ b/libgcc/config/sh/linux-unwind.h
- @@ -82,7 +82,7 @@ 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 a8dc4405715..dba3b410279 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 67c272820d0..2cb9eb1f739 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 */
- --
- 2.11.0
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