From: Joseph Myers Date: Wed, 28 Jun 2017 09:21:16 +0000 (+0100) Subject: Use ucontext_t not struct ucontext in linux-unwind.h files. X-Git-Tag: basepoints/gcc-9~6314 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=883312dc79806f513275b72502231c751c14ff72;p=thirdparty%2Fgcc.git 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. From-SVN: r249731 --- diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 924543cd2065..cc88bc990778 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,18 @@ +2017-06-28 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/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. + 2017-06-27 Jerome Lambourg * config.host (i*86-wrs-vxworks7): Handle new acceptable triplet. diff --git a/libgcc/config/aarch64/linux-unwind.h b/libgcc/config/aarch64/linux-unwind.h index d5d6980442fd..d46d5f53be37 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 a91a5f4fe26b..7202516581d2 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 9412c7652b8c..37e9feb69659 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 b1d5040a6877..2009ad72260d 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 82c7a297a6d0..9ea39d454aaa 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 ae82efd6de64..204359d7b925 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 580c18dad691..c2c3409bcc1f 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 a051a2869d4c..1c8aeff7ef09 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 1038caeb5c36..a8c98220282a 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 a8dc44057150..dba3b4102796 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 67c272820d0d..2cb9eb1f7390 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 */