sys-apps/attr: provide generated autotools patch

for bootstrapping

Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 310 insertions, 0 deletions

diff --git a/sys-apps/attr/attr-2.5.1-r2.ebuild b/sys-apps/attr/attr-2.5.1-r2.ebuild
new file mode 100644
index 000000000000..2046677daddd
--- /dev/null
+++ b/sys-apps/attr/attr-2.5.1-r2.ebuild
@@ -0,0 +1,104 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic toolchain-funcs multilib-minimal usr-ldscript
+
+if [[ ${PV} == 9999 ]] ; then
+	EGIT_REPO_URI="https://git.savannah.gnu.org/git/${PN}.git"
+	inherit autotools git-r3
+else
+	inherit libtool
+
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux"
+	SRC_URI="mirror://nongnu/${PN}/${P}.tar.xz"
+fi
+
+DESCRIPTION="Extended attributes tools"
+HOMEPAGE="https://savannah.nongnu.org/projects/attr"
+
+LICENSE="LGPL-2.1"
+SLOT="0"
+IUSE="debug nls static-libs"
+
+BDEPEND="nls? ( sys-devel/gettext )"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.5.1-r2-fix-symver.patch
+)
+
+src_prepare() {
+	default
+
+	if [[ ${PV} == 9999 ]] ; then
+		po/update-potfiles || die
+		eautopoint
+		eautoreconf
+	else
+		# bug #580792
+		elibtoolize
+	fi
+}
+
+src_configure() {
+	# bug #760857
+	append-lfs-flags
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	local myeconfargs=(
+		--bindir="${EPREFIX}"/bin
+		--libexecdir="${EPREFIX}"/usr/$(get_libdir)
+		--enable-shared
+		$(use_enable static-libs static)
+		$(use_enable nls)
+		$(use_enable debug)
+	)
+
+	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
+}
+
+multilib_src_install() {
+	emake DESTDIR="${D}" install
+
+	# Sanity check until we track down why this is happening. bug #644048
+	local lib="${ED}/usr/$(get_libdir)/libattr.so.1"
+	if [[ -e ${lib} ]] ; then
+		local versions=$($(tc-getREADELF) -V "${lib}")
+		local symbols=$($(tc-getREADELF) -sW "${lib}")
+		if [[ "${versions}" != *"ATTR_1.0"* || \
+		      "${versions}" != *"ATTR_1.1"* || \
+		      "${versions}" != *"ATTR_1.2"* || \
+		      "${versions}" != *"ATTR_1.3"* || \
+		      "${symbols}" != *"getxattr@ATTR_1.0"* ]] ; then
+			echo "# readelf -V ${lib}"
+			echo "${versions}"
+			echo "# readelf -sW ${lib}"
+			echo "${symbols}"
+			die "Symbol version sanity check failed; please comment on https://bugs.gentoo.org/644048"
+		else
+			einfo "${lib} passed symbol checks"
+		fi
+	fi
+
+	if multilib_is_native_abi; then
+		# We install attr into /bin, so we need the shared lib with it
+		gen_usr_ldscript -a attr
+	fi
+
+	# Add a wrapper until people upgrade.
+	# TODO: figure out when this was added & when we can drop it!
+	insinto /usr/include/attr
+	newins "${FILESDIR}"/xattr-shim.h xattr.h
+}
+
+multilib_src_install_all() {
+	if ! use static-libs; then
+		find "${ED}" -name '*.la' -delete || die
+	fi
+
+	einstalldocs
+}
diff --git a/sys-apps/attr/files/attr-2.5.1-r2-fix-symver.patch b/sys-apps/attr/files/attr-2.5.1-r2-fix-symver.patch
new file mode 100644
index 000000000000..ee25b13166ff
--- /dev/null
+++ b/sys-apps/attr/files/attr-2.5.1-r2-fix-symver.patch
@@ -0,0 +1,206 @@
+https://lists.nongnu.org/archive/html/acl-devel/2022-05/msg00000.html
+Bug: https://bugs.gentoo.org/644048
+Bug: https://bugs.gentoo.org/700116
+
+From a9ca51afd2b9f68f57de3a4c3d962d1d763572ca Mon Sep 17 00:00:00 2001
+From: Alexander Miller <alex.miller@gmx.de>
+Date: Thu, 28 Nov 2019 22:17:24 +0100
+Subject: [PATCH] Better supported way to set symbol versions for legacy
+ syscalls
+
+Using a linker script to set a symbol versions is an undocumented
+hack and doesn't work reliably in many cases. It works (to some
+degree) with the bfd linker, but fails with gold or lld. And even
+with bfd it can break when using --gc-sections or LTO.
+
+The result may be a library where the code has been discarded and
+the versioned symbols are unusable, e.g.
+    23: 00000000     0 NOTYPE  GLOBAL DEFAULT  ABS getxattr@ATTR_1.0
+instead of
+    23: 000033c0     0 FUNC    GLOBAL DEFAULT   11 getxattr@ATTR_1.0
+
+Remove the linker script entirely and set symbol versions with the
+symver attribute if available (in gcc >= 10, but not in clang),
+otherwise use the traditional global asm solution with a .symver
+directive.
+Those are the documented ways to do it and well supported by (almost)
+all configurations. (The exception is old gcc with LTO; a workaround
+is included, but some versions may still need -flto-partition=none).
+
+Signed-off-by: Alexander Miller <alex.miller@gmx.de>
+
+--- a/libattr/Makemodule.am
++++ b/libattr/Makemodule.am
+@@ -8,7 +8,7 @@ LT_CURRENT = 2
+ LT_AGE = 1
+ LTVERSION = $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)
+ 
+-libattr_la_DEPENDENCIES = exports libattr/libattr.lds
++libattr_la_DEPENDENCIES = exports
+ libattr_la_SOURCES = \
+ 	libattr/attr_copy_action.c \
+ 	libattr/attr_copy_check.c \
+@@ -20,7 +20,4 @@ libattr_la_SOURCES = \
+ libattr_la_CFLAGS = -include libattr/libattr.h
+ libattr_la_LDFLAGS = \
+ 	-Wl,--version-script,$(top_srcdir)/exports \
+-	-Wl,$(top_srcdir)/libattr/libattr.lds \
+ 	-version-info $(LTVERSION)
+-
+-EXTRA_DIST += libattr/libattr.lds
+
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -647,9 +647,8 @@ top_build_prefix = @top_build_prefix@
+ top_builddir = @top_builddir@
+ top_srcdir = @top_srcdir@
+ ACLOCAL_AMFLAGS = -I m4
+-EXTRA_DIST = exports examples/copyattr.c examples/Makefile \
+-	libattr/libattr.lds test/README test/run \
+-	test/sort-getfattr-output $(TESTS)
++EXTRA_DIST = exports examples/copyattr.c examples/Makefile test/README \
++	test/run test/sort-getfattr-output $(TESTS)
+ SUBDIRS = po
+ AM_CPPFLAGS = \
+ 	-I$(top_builddir)/include \
+@@ -689,7 +688,7 @@ LT_CURRENT = 2
+ #LT_REVISION =
+ LT_AGE = 1
+ LTVERSION = $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)
+-libattr_la_DEPENDENCIES = exports libattr/libattr.lds
++libattr_la_DEPENDENCIES = exports
+ libattr_la_SOURCES = \
+ 	libattr/attr_copy_action.c \
+ 	libattr/attr_copy_check.c \
+@@ -702,7 +701,6 @@ libattr_la_SOURCES = \
+ libattr_la_CFLAGS = -include libattr/libattr.h
+ libattr_la_LDFLAGS = \
+ 	-Wl,--version-script,$(top_srcdir)/exports \
+-	-Wl,$(top_srcdir)/libattr/libattr.lds \
+ 	-version-info $(LTVERSION)
+ 
+ libmisc_la_SOURCES = \
+--- a/libattr/libattr.lds
++++ /dev/null
+@@ -1,12 +0,0 @@
+-"fgetxattr@ATTR_1.0" = libattr_fgetxattr;
+-"flistxattr@ATTR_1.0" = libattr_flistxattr;
+-"fremovexattr@ATTR_1.0" = libattr_fremovexattr;
+-"fsetxattr@ATTR_1.0" = libattr_fsetxattr;
+-"getxattr@ATTR_1.0" = libattr_getxattr;
+-"lgetxattr@ATTR_1.0" = libattr_lgetxattr;
+-"listxattr@ATTR_1.0" = libattr_listxattr;
+-"llistxattr@ATTR_1.0" = libattr_llistxattr;
+-"lremovexattr@ATTR_1.0" = libattr_lremovexattr;
+-"lsetxattr@ATTR_1.0" = libattr_lsetxattr;
+-"removexattr@ATTR_1.0" = libattr_removexattr;
+-"setxattr@ATTR_1.0" = libattr_setxattr;
+--- a/libattr/syscalls.c
++++ b/libattr/syscalls.c
+@@ -26,6 +26,27 @@
+ #include <sys/syscall.h>
+ #include <sys/xattr.h>
+ 
++/*
++ * Versioning of compat symbols:
++ * prefer symver attribute if available (since gcc 10),
++ * fall back to traditional .symver asm directive otherwise.
++ */
++#ifdef __has_attribute
++# if __has_attribute(symver)
++#  define SYMVER(cn, vn) __typeof(cn) cn __attribute__((symver(vn)))
++# elif __has_attribute(no_reorder)
++   /*
++    * Avoid wrong partitioning with older gcc and LTO. May not work reliably
++    * with all versions; use -flto-partition=none if you encounter problems.
++    */
++#  define SYMVER(cn, vn) __typeof(cn) cn __attribute__((noreorder)); \
++			 __asm__(".symver " #cn "," vn)
++# endif
++#endif
++#ifndef SYMVER
++#  define SYMVER(cn, vn) __asm__(".symver " #cn "," vn)
++#endif
++
+ #ifdef HAVE_VISIBILITY_ATTRIBUTE
+ # pragma GCC visibility push(default)
+ #endif
+@@ -35,66 +56,78 @@ int libattr_setxattr(const char *path, const char *name,
+ {
+ 	return syscall(__NR_setxattr, path, name, value, size, flags);
+ }
++SYMVER(libattr_setxattr, "setxattr@ATTR_1.0");
+ 
+ int libattr_lsetxattr(const char *path, const char *name,
+ 		      void *value, size_t size, int flags)
+ {
+ 	return syscall(__NR_lsetxattr, path, name, value, size, flags);
+ }
++SYMVER(libattr_lsetxattr, "lsetxattr@ATTR_1.0");
+ 
+ int libattr_fsetxattr(int filedes, const char *name,
+ 		      void *value, size_t size, int flags)
+ {
+ 	return syscall(__NR_fsetxattr, filedes, name, value, size, flags);
+ }
++SYMVER(libattr_fsetxattr, "fsetxattr@ATTR_1.0");
+ 
+ ssize_t libattr_getxattr(const char *path, const char *name,
+ 			 void *value, size_t size)
+ {
+ 	return syscall(__NR_getxattr, path, name, value, size);
+ }
++SYMVER(libattr_getxattr, "getxattr@ATTR_1.0");
+ 
+ ssize_t libattr_lgetxattr(const char *path, const char *name,
+ 			  void *value, size_t size)
+ {
+ 	return syscall(__NR_lgetxattr, path, name, value, size);
+ }
++SYMVER(libattr_lgetxattr, "lgetxattr@ATTR_1.0");
+ 
+ ssize_t libattr_fgetxattr(int filedes, const char *name,
+ 			  void *value, size_t size)
+ {
+ 	return syscall(__NR_fgetxattr, filedes, name, value, size);
+ }
++SYMVER(libattr_fgetxattr, "fgetxattr@ATTR_1.0");
+ 
+ ssize_t libattr_listxattr(const char *path, char *list, size_t size)
+ {
+ 	return syscall(__NR_listxattr, path, list, size);
+ }
++SYMVER(libattr_listxattr, "listxattr@ATTR_1.0");
+ 
+ ssize_t libattr_llistxattr(const char *path, char *list, size_t size)
+ {
+ 	return syscall(__NR_llistxattr, path, list, size);
+ }
++SYMVER(libattr_llistxattr, "llistxattr@ATTR_1.0");
+ 
+ ssize_t libattr_flistxattr(int filedes, char *list, size_t size)
+ {
+ 	return syscall(__NR_flistxattr, filedes, list, size);
+ }
++SYMVER(libattr_flistxattr, "flistxattr@ATTR_1.0");
+ 
+ int libattr_removexattr(const char *path, const char *name)
+ {
+ 	return syscall(__NR_removexattr, path, name);
+ }
++SYMVER(libattr_removexattr, "removexattr@ATTR_1.0");
+ 
+ int libattr_lremovexattr(const char *path, const char *name)
+ {
+ 	return syscall(__NR_lremovexattr, path, name);
+ }
++SYMVER(libattr_lremovexattr, "lremovexattr@ATTR_1.0");
+ 
+ int libattr_fremovexattr(int filedes, const char *name)
+ {
+ 	return syscall(__NR_fremovexattr, filedes, name);
+ }
++SYMVER(libattr_fremovexattr, "fremovexattr@ATTR_1.0");
+ 
+ #ifdef HAVE_VISIBILITY_ATTRIBUTE
+ # pragma GCC visibility pop