gcc-6.3.inc: Use ucontext_t not struct ucontext.
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. Backport of patches by Joseph Myers, taken from https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision=249957 [YOCTO #12083] (From OE-Core rev: ec1c18d866c137b1fa523d0fcc29f65a28f59f44) (From OE-Core rev: 5c4c077a9182561a95f071d9c0d4a7a7f06fca98) Signed-off-by: Juro Bystricky <juro.bystricky@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -80,6 +80,7 @@ SRC_URI = "\
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file://0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch \
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file://0048-sync-gcc-stddef.h-with-musl.patch \
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file://0054_all_nopie-all-flags.patch \
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file://0055-unwind_h-glibc26.patch \
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${BACKPORTS} \
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"
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BACKPORTS = "\
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@ -0,0 +1,139 @@
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Backport and edit of patches from:
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https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision=249957
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by jsm28 (Joseph Myers)
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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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Upstream-Status: Backport
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Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
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--- branches/gcc-6-branch/libgcc/config/aarch64/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/aarch64/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -52,7 +52,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/alpha/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/alpha/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -51,7 +51,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/bfin/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/bfin/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -52,7 +52,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/i386/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/i386/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -58,7 +58,7 @@
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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 @@
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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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--- branches/gcc-6-branch/libgcc/config/m68k/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/m68k/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -33,7 +33,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/nios2/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/nios2/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -38,7 +38,7 @@
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struct nios2_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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struct nios2_mcontext uc_mcontext;
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sigset_t uc_sigmask; /* mask last for extensibility */
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--- branches/gcc-6-branch/libgcc/config/pa/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/pa/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -80,7 +80,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/sh/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/sh/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -180,7 +180,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/tilepro/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/tilepro/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -61,7 +61,7 @@
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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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--- branches/gcc-6-branch/libgcc/config/xtensa/linux-unwind.h 2017/07/04 10:22:56 249956
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--- b/libgcc/config/xtensa/linux-unwind.h 2017/07/04 10:23:57 249957
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@@ -67,7 +67,7 @@
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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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