From 16b277761b432510ad6dcf72d877ae72b5f0a4b7 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 4 Jul 2017 11:25:10 +0100 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. From-SVN: r249958 --- libgcc/ChangeLog | 14 ++++++++++++++ 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/ChangeLog b/libgcc/ChangeLog index 8d43ecadf80c..10cfbad50b2e 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,17 @@ +2017-07-04 Joseph Myers + + * 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. + 2017-05-30 Max Filippov Backport from mainline diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h index 86d17b1c7981..909f68f73110 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 d65474fec12f..9a226b195b56 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 0c270e435c7e..7fa95d2dc96f 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 e54bf73b1fd2..d35fc4566ce1 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 fb79a4d63cd5..b2f5ea4cd7c1 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 /* 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 dff1c20076ee..1d88afecb121 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 01494685ea44..91575356803a 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 e63091f287c3..67033f06b4b3 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 fd83ba7c2759..e3c9ef0840d0 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 9a67b5d2b461..98b7ea60e81d 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 */ -- 2.47.2