223 lines
8.3 KiB
Diff
223 lines
8.3 KiB
Diff
This is not among the normal patches as these changes are musl specific and
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there is no way to easily conditionalize it in source for some of the changes.
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Added by q66: runtime.h now uses libucontext_ prefixed APIs to allow build
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with freestanding versions of libucontext
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Souurce: Adélie Linux, q66
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URL: https://code.foxkit.us/adelie/packages/tree/master/system/gcc
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -46325,7 +46325,7 @@ configure-target-libgo:
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esac; \
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module_srcdir=libgo; \
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rm -f no-such-file || : ; \
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- CONFIG_SITE=no-such-file $(SHELL) \
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+ CONFIG_SITE=no-such-file LIBS="-lucontext $$LIBS" $(SHELL) \
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$$s/$$module_srcdir/configure \
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--srcdir=$${topdir}/$$module_srcdir \
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$(TARGET_CONFIGARGS) --build=${build_alias} --host=${target_alias} \
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--- a/libgo/mksysinfo.sh
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+++ b/libgo/mksysinfo.sh
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@@ -379,11 +379,7 @@ fi
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# Some basic types.
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echo 'type Size_t _size_t' >> ${OUT}
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echo "type Ssize_t _ssize_t" >> ${OUT}
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-if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
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- echo "type Offset_t _off64_t" >> ${OUT}
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-else
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- echo "type Offset_t _off_t" >> ${OUT}
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-fi
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+echo "type Offset_t _off_t" >> ${OUT}
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echo "type Mode_t _mode_t" >> ${OUT}
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echo "type Pid_t _pid_t" >> ${OUT}
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echo "type Uid_t _uid_t" >> ${OUT}
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--- a/libgo/go/runtime/mem_gccgo.go
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+++ b/libgo/go/runtime/mem_gccgo.go
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@@ -16,7 +16,7 @@ import (
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//go:linkname sysFree runtime.sysFree
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//extern mmap
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-func sysMmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uintptr) unsafe.Pointer
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+func sysMmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off int64) unsafe.Pointer
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//extern munmap
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func munmap(addr unsafe.Pointer, length uintptr) int32
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@@ -38,7 +38,7 @@ func init() {
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}
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}
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-func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uintptr) (unsafe.Pointer, int) {
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+func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off int64) (unsafe.Pointer, int) {
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p := sysMmap(addr, n, prot, flags, fd, off)
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if uintptr(p) == _MAP_FAILED {
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return nil, errno()
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--- a/libgo/go/runtime/signal_gccgo.go
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+++ b/libgo/go/runtime/signal_gccgo.go
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@@ -111,7 +111,7 @@ func getsig(i uint32) uintptr {
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if sigaction(i, nil, &sa) < 0 {
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// On GNU/Linux glibc rejects attempts to call
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// sigaction with signal 32 (SIGCANCEL) or 33 (SIGSETXID).
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- if GOOS == "linux" && (i == 32 || i == 33) {
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+ if GOOS == "linux" && (i == 32 || i == 33 || i == 34) {
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return _SIG_DFL
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}
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throw("sigaction read failure")
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--- a/libgo/go/syscall/errstr.go
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+++ b/libgo/go/syscall/errstr.go
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@@ -5,7 +5,6 @@
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// license that can be found in the LICENSE file.
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// +build !hurd
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-// +build !linux
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package syscall
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--- a/libgo/go/syscall/errstr_glibc.go
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+++ /dev/null
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@@ -1,33 +0,0 @@
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-// errstr_glibc.go -- GNU/Linux and GNU/Hurd specific error strings.
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-
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-// Copyright 2010 The Go Authors. All rights reserved.
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-// Use of this source code is governed by a BSD-style
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-// license that can be found in the LICENSE file.
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-
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-// We use this rather than errstr.go because on GNU/Linux sterror_r
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-// returns a pointer to the error message, and may not use buf at all.
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-
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-// +build hurd linux
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-
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-package syscall
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-
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-import "unsafe"
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-
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-//sysnb strerror_r(errnum int, b []byte) (errstr *byte)
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-//strerror_r(errnum _C_int, b *byte, len Size_t) *byte
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-
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-func Errstr(errnum int) string {
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- a := make([]byte, 128)
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- p := strerror_r(errnum, a)
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- b := (*[1000]byte)(unsafe.Pointer(p))
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- i := 0
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- for b[i] != 0 {
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- i++
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- }
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- // Lowercase first letter: Bad -> bad, but STREAM -> STREAM.
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- if i > 1 && 'A' <= b[0] && b[0] <= 'Z' && 'a' <= b[1] && b[1] <= 'z' {
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- c := b[0] + 'a' - 'A'
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- return string(c) + string(b[1:i])
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- }
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- return string(b[:i])
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-}
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--- a/libgo/go/syscall/libcall_linux.go
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+++ b/libgo/go/syscall/libcall_linux.go
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@@ -206,19 +206,19 @@ func Gettid() (tid int) {
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//sys Setxattr(path string, attr string, data []byte, flags int) (err error)
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//setxattr(path *byte, name *byte, value *byte, size Size_t, flags _C_int) _C_int
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-//sys splice(rfd int, roff *_loff_t, wfd int, woff *_loff_t, len int, flags int) (n int64, err error)
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-//splice(rfd _C_int, roff *_loff_t, wfd _C_int, woff *_loff_t, len Size_t, flags _C_uint) Ssize_t
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+//sys splice(rfd int, roff *_off_t, wfd int, woff *_off_t, len int, flags int) (n int64, err error)
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+//splice(rfd _C_int, roff *_off_t, wfd _C_int, woff *_off_t, len Size_t, flags _C_uint) Ssize_t
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func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) {
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- var lroff _loff_t
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- var plroff *_loff_t
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+ var lroff _off_t
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+ var plroff *_off_t
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if roff != nil {
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- lroff = _loff_t(*roff)
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+ lroff = _off_t(*roff)
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plroff = &lroff
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}
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- var lwoff _loff_t
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- var plwoff *_loff_t
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+ var lwoff _off_t
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+ var plwoff *_off_t
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if woff != nil {
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- lwoff = _loff_t(*woff)
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+ lwoff = _off_t(*woff)
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plwoff = &lwoff
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}
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n, err = splice(rfd, plroff, wfd, plwoff, len, flags)
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--- a/libgo/mksigtab.sh
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+++ b/libgo/mksigtab.sh
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@@ -82,7 +82,7 @@ checksig _SIGPWR '{_SigNotify, "SIGPWR: power failure restart"}'
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checksig _SIGEMT '{_SigThrow, "SIGEMT: emulate instruction executed"}'
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checksig _SIGINFO '{_SigNotify, "SIGINFO: status request from keyboard"}'
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checksig _SIGTHR '{_SigNotify, "SIGTHR: reserved"}'
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-checksig _SIGPOLL '{_SigNotify, "SIGPOLL: pollable event occurred"}'
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+#checksig _SIGPOLL '{_SigNotify, "SIGPOLL: pollable event occurred"}'
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checksig _SIGWAITING '{_SigNotify, "SIGWAITING: reserved signal no longer used by"}'
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checksig _SIGLWP '{_SigNotify, "SIGLWP: reserved signal no longer used by"}'
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checksig _SIGFREEZE '{_SigNotify, "SIGFREEZE: special signal used by CPR"}'
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@@ -95,10 +95,12 @@ checksig _SIGLOST ' {_SigNotify, "SIGLOST: resource lost (Sun); server died (G
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# Special handling of signals 32 and 33 on GNU/Linux systems,
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# because they are special to glibc.
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+# Signal 34 is additionally special to Linux systems with musl.
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if test "${GOOS}" = "linux"; then
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- SIGLIST=$SIGLIST"_32__33_"
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+ SIGLIST=$SIGLIST"_32__33__34_"
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echo ' 32: {_SigSetStack + _SigUnblock, "signal 32"}, /* SIGCANCEL; see issue 6997 */'
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echo ' 33: {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */'
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+ echo ' 34: {_SigSetStack + _SigUnblock, "signal 34"}, /* see issue 30062 */'
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fi
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if test "${GOOS}" = "aix"; then
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--- a/libgo/runtime/go-signal.c 2020-07-23 08:35:19.004402840 +0200
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+++ b/libgo/runtime/go-signal.c 2020-08-09 21:35:54.352886232 +0200
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@@ -224,7 +224,11 @@
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#elif defined(__alpha__) && defined(__linux__)
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ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.sc_pc;
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#elif defined(__PPC__) && defined(__linux__)
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- ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.regs->nip;
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+ #ifdef __PPC64__
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+ ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.gp_regs[32];
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+ #else
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+ ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.gregs[32];
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+ #endif
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#elif defined(__PPC__) && defined(_AIX)
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ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.jmp_context.iar;
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#elif defined(__aarch64__) && defined(__linux__)
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@@ -333,7 +337,7 @@
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runtime_printf("sp %X\n", m->sc_regs[30]);
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runtime_printf("pc %X\n", m->sc_pc);
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}
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-#elif defined(__PPC__) && defined(__LITTLE_ENDIAN__) && defined(__linux__)
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+#elif defined(__PPC__) && defined(__LITTLE_ENDIAN__) && defined(__linux__) && defined(__GLIBC__)
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{
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mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;
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int i;
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--- a/libgo/runtime/runtime.h
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+++ b/libgo/runtime/runtime.h
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@@ -500,10 +500,13 @@ int __go_setcontext(__go_context_t*);
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void __go_makecontext(__go_context_t*, void (*)(), void*, size_t);
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#else
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#define __go_context_t ucontext_t
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-#define __go_getcontext(c) getcontext(c)
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-#define __go_setcontext(c) setcontext(c)
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+int libucontext_getcontext(__go_context_t *);
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+void libucontext_makecontext(__go_context_t *, void (*)(), int, ...);
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+int libucontext_setcontext(const __go_context_t *);
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+#define __go_getcontext(c) libucontext_getcontext(c)
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+#define __go_setcontext(c) libucontext_setcontext(c)
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#define __go_makecontext(c, fn, sp, size) \
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- ((c)->uc_stack.ss_sp = sp, (c)->uc_stack.ss_size = size, makecontext(c, fn, 0))
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+ ((c)->uc_stack.ss_sp = sp, (c)->uc_stack.ss_size = size, libucontext_makecontext(c, fn, 0))
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#endif
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// Symbols defined by the linker.
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--- a/libgo/sysinfo.c
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+++ b/libgo/sysinfo.c
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@@ -73,9 +73,6 @@
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#include <sys/times.h>
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#include <sys/wait.h>
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#include <sys/un.h>
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-#if defined(HAVE_SYS_USER_H)
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-#include <sys/user.h>
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-#endif
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#if defined(HAVE_SYS_UTSNAME_H)
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#include <sys/utsname.h>
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#endif
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