sys-libs/libunwind: Only include execinfo.h if it is avaliable on the

system.

9 files changed, 341 insertions, 0 deletions

diff --git a/sys-libs/libunwind/Manifest b/sys-libs/libunwind/Manifest
new file mode 100644
index 00000000..4155a10d
--- /dev/null
+++ b/sys-libs/libunwind/Manifest
@@ -0,0 +1 @@
+DIST libunwind-1.2.1.tar.gz 780774 BLAKE2B a5be4142e1e4932231023bdec2ab3ecd6b707faf2d32d2b571239252a1d0fb6a273a6a46c4a107db63f74f7b54c0c54cf252b8b79ad53216333ba7bcf63147a1 SHA512 af7c280d2a963779a4a2711887618bc96383011e4e5d52e4085aa7fb351e55e357468f6ff85e66a216f1c6826538f498335a917a5970575c93be74c96316319b
diff --git a/sys-libs/libunwind/files/libunwind-1.2-coredump-regs.patch b/sys-libs/libunwind/files/libunwind-1.2-coredump-regs.patch
new file mode 100644
index 00000000..3ddc610d
--- /dev/null
+++ b/sys-libs/libunwind/files/libunwind-1.2-coredump-regs.patch
@@ -0,0 +1,16 @@
+https://bugs.gentoo.org/586092
+
+this might not be correct, but at least it builds, and doesn't crash
+
+--- a/src/coredump/_UCD_access_reg_linux.c
++++ b/src/coredump/_UCD_access_reg_linux.c
+@@ -51,6 +51,9 @@ _UCD_access_reg (unw_addr_space_t as,
+ #elif defined(UNW_TARGET_TILEGX)
+   if (regnum < 0 || regnum > UNW_TILEGX_CFA)
+     goto badreg;
++#elif defined(UNW_TARGET_IA64) || defined(UNW_TARGET_HPPA) || defined(UNW_TARGET_PPC32) || defined(UNW_TARGET_PPC64)
++  if (regnum < 0 || regnum >= ARRAY_SIZE(ui->prstatus->pr_reg))
++    goto badreg;
+ #else
+ #if defined(UNW_TARGET_MIPS)
+   static const uint8_t remap_regs[] =
diff --git a/sys-libs/libunwind/files/libunwind-1.2-ia64-missing.patch b/sys-libs/libunwind/files/libunwind-1.2-ia64-missing.patch
new file mode 100644
index 00000000..e15250b4
--- /dev/null
+++ b/sys-libs/libunwind/files/libunwind-1.2-ia64-missing.patch
@@ -0,0 +1,93 @@
+Original libunwind release is missing a few ia64-specific files in tarball.
+diff --git a/src/ia64/mk_Gcursor_i.c b/src/ia64/mk_Gcursor_i.c
+new file mode 100644
+index 0000000..67b14d5
+--- /dev/null
++++ b/src/ia64/mk_Gcursor_i.c
+@@ -0,0 +1,65 @@
++/* libunwind - a platform-independent unwind library
++   Copyright (C) 2003 Hewlett-Packard Co
++        Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
++
++This file is part of libunwind.
++
++Permission is hereby granted, free of charge, to any person obtaining
++a copy of this software and associated documentation files (the
++"Software"), to deal in the Software without restriction, including
++without limitation the rights to use, copy, modify, merge, publish,
++distribute, sublicense, and/or sell copies of the Software, and to
++permit persons to whom the Software is furnished to do so, subject to
++the following conditions:
++
++The above copyright notice and this permission notice shall be
++included in all copies or substantial portions of the Software.
++
++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
++MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
++LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
++OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
++WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
++
++/* Utility to generate cursor_i.h.  */
++
++#include "libunwind_i.h"
++
++#ifdef offsetof
++# undef offsetof
++#endif
++
++#define offsetof(type,field)    ((char *) &((type *) 0)->field - (char *) 0)
++
++#define OFFSET(sym, offset) \
++        asm volatile("\n->" #sym " %0" : : "i" (offset))
++
++int
++main (void)
++{
++  OFFSET("IP_OFF",       offsetof (struct cursor, ip));
++  OFFSET("PR_OFF",       offsetof (struct cursor, pr));
++  OFFSET("BSP_OFF",      offsetof (struct cursor, bsp));
++  OFFSET("PSP_OFF",      offsetof (struct cursor, psp));
++  OFFSET("PFS_LOC_OFF",  offsetof (struct cursor, loc[IA64_REG_PFS]));
++  OFFSET("RNAT_LOC_OFF", offsetof (struct cursor, loc[IA64_REG_RNAT]));
++  OFFSET("UNAT_LOC_OFF", offsetof (struct cursor, loc[IA64_REG_UNAT]));
++  OFFSET("LC_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_LC]));
++  OFFSET("FPSR_LOC_OFF", offsetof (struct cursor, loc[IA64_REG_FPSR]));
++  OFFSET("B1_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_B1]));
++  OFFSET("B2_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_B2]));
++  OFFSET("B3_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_B3]));
++  OFFSET("B4_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_B4]));
++  OFFSET("B5_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_B5]));
++  OFFSET("F2_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_F2]));
++  OFFSET("F3_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_F3]));
++  OFFSET("F4_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_F4]));
++  OFFSET("F5_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_F5]));
++  OFFSET("FR_LOC_OFF",   offsetof (struct cursor, loc[IA64_REG_F16]));
++  OFFSET("LOC_SIZE",
++      (offsetof (struct cursor, loc[1]) - offsetof (struct cursor, loc[0])));
++  OFFSET("SIGCONTEXT_ADDR_OFF", offsetof (struct cursor, sigcontext_addr));
++  return 0;
++}
+diff --git a/src/ia64/mk_Lcursor_i.c b/src/ia64/mk_Lcursor_i.c
+new file mode 100644
+index 0000000..aee2e7e
+--- /dev/null
++++ b/src/ia64/mk_Lcursor_i.c
+@@ -0,0 +1,2 @@
++#define UNW_LOCAL_ONLY
++#include "mk_Gcursor_i.c"
+diff --git a/src/ia64/mk_cursor_i b/src/ia64/mk_cursor_i
+new file mode 100755
+index 0000000..9211f91
+--- /dev/null
++++ b/src/ia64/mk_cursor_i
+@@ -0,0 +1,7 @@
++#!/bin/sh
++test -z "$1" && exit 1
++echo "/* GENERATED */"
++echo "#ifndef cursor_i_h"
++echo "#define cursor_i_h"
++sed -ne 's/^->"\(\S*\)" \(\d*\)/#define \1 \2/p' < $1 || exit $?
++echo "#endif"
diff --git a/sys-libs/libunwind/files/libunwind-1.2-ia64-ptrace-coredump.patch b/sys-libs/libunwind/files/libunwind-1.2-ia64-ptrace-coredump.patch
new file mode 100644
index 00000000..3785d882
--- /dev/null
+++ b/sys-libs/libunwind/files/libunwind-1.2-ia64-ptrace-coredump.patch
@@ -0,0 +1,34 @@
+Fix build failure on ia64.
+    coredump/_UPT_get_dyn_info_list_addr.c
+is almost identical to
+    ptrace/_UPT_get_dyn_info_list_addr.c
+It's clearly an __ia64 implementation copy.
+diff --git a/src/coredump/_UPT_get_dyn_info_list_addr.c b/src/coredump/_UPT_get_dyn_info_list_addr.c
+index 0d11905..176b146 100644
+--- a/src/coredump/_UPT_get_dyn_info_list_addr.c
++++ b/src/coredump/_UPT_get_dyn_info_list_addr.c
+@@ -31,2 +31,3 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+ # include "os-linux.h"
++# include "../ptrace/_UPT_internal.h"
+ 
+@@ -40,3 +41,2 @@ get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg,
+   char path[PATH_MAX];
+-  unw_dyn_info_t *di;
+   unw_word_t res;
+@@ -50,5 +50,5 @@ get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg,
+ 
+-      invalidate_edi (&ui->edi);
++      invalidate_edi(&ui->edi);
+ 
+-      if (elf_map_image (&ui->ei, path) < 0)
++      if (elf_map_image (&ui->edi.ei, path) < 0)
+         /* ignore unmappable stuff like "/SYSV00001b58 (deleted)" */
+@@ -58,6 +58,5 @@ get_list_addr (unw_addr_space_t as, unw_word_t *dil_addr, void *arg,
+ 
+-      di = tdep_find_unwind_table (&ui->edi, as, path, lo, off);
+-      if (di)
++      if (tdep_find_unwind_table (&ui->edi, as, path, lo, off, 0) > 0)
+         {
+-          res = _Uia64_find_dyn_list (as, di, arg);
++          res = _Uia64_find_dyn_list (as, &ui->edi.di_cache, arg);
+           if (res && count++ == 0)
diff --git a/sys-libs/libunwind/files/libunwind-1.2-ia64-undwarf.patch b/sys-libs/libunwind/files/libunwind-1.2-ia64-undwarf.patch
new file mode 100644
index 00000000..1e3e2489
--- /dev/null
+++ b/sys-libs/libunwind/files/libunwind-1.2-ia64-undwarf.patch
@@ -0,0 +1,17 @@
+diff --git a/src/mi/Gget_proc_name.c b/src/mi/Gget_proc_name.c
+index 5376f82..64d2503 100644
+--- a/src/mi/Gget_proc_name.c
++++ b/src/mi/Gget_proc_name.c
+@@ -106,8 +106,12 @@ unw_get_proc_name (unw_cursor_t *cursor, char *buf, size_t buf_len,
+   ip = tdep_get_ip (c);
++#if !defined(__ia64)
+   if (c->dwarf.use_prev_instr)
+     --ip;
++#endif
+   error = get_proc_name (tdep_get_as (c), ip, buf, buf_len, offp,
+                          tdep_get_as_arg (c));
++#if !defined(__ia64)
+   if (c->dwarf.use_prev_instr && offp != NULL && error == 0)
+     *offp += 1;
++#endif
+   return error;
diff --git a/sys-libs/libunwind/files/libunwind-1.2.1-fix_version_macros.patch b/sys-libs/libunwind/files/libunwind-1.2.1-fix_version_macros.patch
new file mode 100644
index 00000000..63202937
--- /dev/null
+++ b/sys-libs/libunwind/files/libunwind-1.2.1-fix_version_macros.patch
@@ -0,0 +1,13 @@
+diff --git a/configure.ac b/configure.ac
+index a254bbe..fe0247b 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -1,6 +1,6 @@
+ define(pkg_major, 1)
+-define(pkg_minor, 2.1)
+-define(pkg_extra, )
++define(pkg_minor, 2)
++define(pkg_extra, 1)
+ define(pkg_maintainer, libunwind-devel@nongnu.org)
+ define(mkvers, $1.$2$3)
+ dnl Process this file with autoconf to produce a configure script.
diff --git a/sys-libs/libunwind/files/libunwind-1.2.1-only-include-execinfo_h-if-avaliable.patch b/sys-libs/libunwind/files/libunwind-1.2.1-only-include-execinfo_h-if-avaliable.patch
new file mode 100644
index 00000000..cc42b150
--- /dev/null
+++ b/sys-libs/libunwind/files/libunwind-1.2.1-only-include-execinfo_h-if-avaliable.patch
@@ -0,0 +1,52 @@
+From 0f3f41a86842f2b19aa07af5242cb775ef9b20d3 Mon Sep 17 00:00:00 2001
+From: "Jory A. Pratt" <anarchy@gentoo.org>
+Date: Sat, 30 Jun 2018 22:44:22 -0500
+Subject: [PATCH] Only include execinfo.h where avaliable
+
+Signed-off-by: Jory A. Pratt <anarchy@gentoo.org>
+---
+ tests/test-coredump-unwind.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/tests/test-coredump-unwind.c b/tests/test-coredump-unwind.c
+index 5254708..33f92b0 100644
+--- a/tests/test-coredump-unwind.c
++++ b/tests/test-coredump-unwind.c
+@@ -57,7 +57,9 @@
+ #include <grp.h>
+ 
+ /* For SIGSEGV handler code */
++#if HAVE_EXECINFO_H
+ #include <execinfo.h>
++#endif
+ #include <sys/ucontext.h>
+ 
+ #include <libunwind-coredump.h>
+@@ -202,7 +204,7 @@ void die_out_of_memory(void)
+ /* End of utility logging functions */
+ 
+ 
+-
++#if HAVE_EXECINFO_H
+ static
+ void handle_sigsegv(int sig, siginfo_t *info, void *ucontext)
+ {
+@@ -249,12 +251,14 @@ void handle_sigsegv(int sig, siginfo_t *info, void *ucontext)
+ 
+   _exit(1);
+ }
+-
++#endif
+ static void install_sigsegv_handler(void)
+ {
+   struct sigaction sa;
+   memset(&sa, 0, sizeof(sa));
++#if HAVE_EXECINFO_H
+   sa.sa_sigaction = handle_sigsegv;
++#endif
+   sa.sa_flags = SA_SIGINFO;
+   sigaction(SIGSEGV, &sa, NULL);
+   sigaction(SIGILL, &sa, NULL);
+-- 
+2.18.0
+
diff --git a/sys-libs/libunwind/libunwind-1.2.1-r1.ebuild b/sys-libs/libunwind/libunwind-1.2.1-r1.ebuild
new file mode 100644
index 00000000..a4690fc0
--- /dev/null
+++ b/sys-libs/libunwind/libunwind-1.2.1-r1.ebuild
@@ -0,0 +1,103 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+MY_PV=${PV/_/-}
+MY_P=${PN}-${MY_PV}
+inherit autotools eutils libtool multilib-minimal
+
+DESCRIPTION="Portable and efficient API to determine the call-chain of a program"
+HOMEPAGE="https://savannah.nongnu.org/projects/libunwind"
+SRC_URI="mirror://nongnu/libunwind/${MY_P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="7"
+KEYWORDS="amd64 arm arm64 hppa ia64 ~mips ppc ppc64 x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux"
+IUSE="debug debug-frame doc libatomic lzma +static-libs"
+
+RESTRICT="test" # half of tests are broken (toolchain version dependent)
+
+# We just use the header from libatomic.
+RDEPEND="lzma? ( app-arch/xz-utils )"
+DEPEND="${RDEPEND}
+	libatomic? ( dev-libs/libatomic_ops )"
+
+S="${WORKDIR}/${MY_P}"
+
+MULTILIB_WRAPPED_HEADERS=(
+	/usr/include/libunwind.h
+
+	# see libunwind.h for the full list of arch-specific headers
+	/usr/include/libunwind-aarch64.h
+	/usr/include/libunwind-arm.h
+	/usr/include/libunwind-hppa.h
+	/usr/include/libunwind-ia64.h
+	/usr/include/libunwind-mips.h
+	/usr/include/libunwind-ppc32.h
+	/usr/include/libunwind-ppc64.h
+	/usr/include/libunwind-sh.h
+	/usr/include/libunwind-tilegx.h
+	/usr/include/libunwind-x86.h
+	/usr/include/libunwind-x86_64.h
+)
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.2-coredump-regs.patch #586092
+	"${FILESDIR}"/${PN}-1.2-ia64-undwarf.patch
+	"${FILESDIR}"/${PN}-1.2-ia64-ptrace-coredump.patch
+	"${FILESDIR}"/${PN}-1.2-ia64-missing.patch
+	"${FILESDIR}"/${PN}-1.2.1-fix_version_macros.patch
+	"${FILESDIR}"/${PN}-1.2.1-only-include-execinfo_h-if-avaliable.patch
+)
+
+src_prepare() {
+	default
+	chmod +x src/ia64/mk_cursor_i || die
+	# Since we have tests disabled via RESTRICT, disable building in the subdir
+	# entirely.  This worksaround some build errors too. #484846
+	sed -i -e '/^SUBDIRS/s:tests::' Makefile.in || die
+
+	elibtoolize
+	eautoreconf
+}
+
+multilib_src_configure() {
+	# --enable-cxx-exceptions: always enable it, headers provide the interface
+	# and on some archs it is disabled by default causing a mismatch between the
+	# API and the ABI, bug #418253
+	# conservative-checks: validate memory addresses before use; as of 1.0.1,
+	# only x86_64 supports this, yet may be useful for debugging, couple it with
+	# debug useflag.
+	ECONF_SOURCE="${S}" \
+	ac_cv_header_atomic_ops_h=$(usex libatomic) \
+	econf \
+		--enable-cxx-exceptions \
+		--enable-coredump \
+		--enable-ptrace \
+		--enable-setjmp \
+		$(use_enable debug-frame) \
+		$(use_enable doc documentation) \
+		$(use_enable lzma minidebuginfo) \
+		$(use_enable static-libs static) \
+		$(use_enable debug conservative_checks) \
+		$(use_enable debug)
+}
+
+multilib_src_compile() {
+	# Bug 586208
+	CCACHE_NODIRECT=1 default
+}
+
+multilib_src_test() {
+	# Explicitly allow parallel build of tests.
+	# Sandbox causes some tests to freak out.
+	SANDBOX_ON=0 emake check
+}
+
+multilib_src_install() {
+	default
+	# libunwind-ptrace.a (and libunwind-ptrace.h) is separate API and without
+	# shared library, so we keep it in any case
+	use static-libs || find "${ED}"usr '(' -name 'libunwind-generic.a' -o -name 'libunwind*.la' ')' -delete
+}
diff --git a/sys-libs/libunwind/metadata.xml b/sys-libs/libunwind/metadata.xml
new file mode 100644
index 00000000..95faca4e
--- /dev/null
+++ b/sys-libs/libunwind/metadata.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>toolchain@gentoo.org</email>
+		<name>Gentoo Toolchain Project</name>
+	</maintainer>
+	<use>
+		<flag name="debug-frame">Adds support for DWARF .debug_frame section: Use the information from this section if available</flag>
+		<flag name="libatomic">Use libatomic instead of builtin atomic operations</flag>
+	</use>
+</pkgmetadata>