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From 097c66ef2dd4779e01d13ad4a5f9733334fa9d1a Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Tue, 27 Aug 2013 10:02:04 +0200
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Subject: [PATCH 60/84] build-sys: add CFLAGS and LDFLAGS for daemons and
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 shared libs
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This is necessary for paranoid security guys who believe that things
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like "-Wl,-z,relro" or "-Wl,-z,bind_now" is a way how to make the
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world a safer place...
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[rhel7: add also SOLIB_* to libfdisk]
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Upstream: http://github.com/karelzak/util-linux/commit/03d00d495f3b505d9cae967c629fb38aca301e01
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1092520
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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 Documentation/howto-compilation.txt | 10 +++++-----
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 configure.ac                        | 10 ++++++++++
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 libblkid/src/Makemodule.am          |  2 ++
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 libfdisk/src/Makemodule.am          |  3 +++
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 libmount/src/Makemodule.am          |  2 ++
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 libuuid/src/Makemodule.am           |  7 ++++++-
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 misc-utils/Makemodule.am            |  3 ++-
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 7 files changed, 30 insertions(+), 7 deletions(-)
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diff --git a/Documentation/howto-compilation.txt b/Documentation/howto-compilation.txt
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index bebe0d2..4b39246 100644
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--- a/Documentation/howto-compilation.txt
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+++ b/Documentation/howto-compilation.txt
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@@ -27,12 +27,12 @@ Compiling
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 	The SUID_* feature is currently supported for chfn, chsh,
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 	newgrp, su, write, mount, and umount.
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-	Preferred compilation options for developers, when
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-	using gcc, are:
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+	Use DAEMON_CFLAGS and DAEMON_LDFLAGS when you want to define
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+	special compiler options for daemons; supported for uuidd.
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-	export CFLAGS="-Wmissing-parameter-type -Wsign-compare
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-	-Wtype-limits -Wuninitialized -Wunused-parameter
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-	-Wunused-but-set-parameter -fno-common"
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+	Use SOLIB_CFLAGS and SOLIB_LDFLAGS when you want to define
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+	special compiler options for shared libraries; supported for
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+	libmount, libblkid and libuuid.
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 	FIXME: add notes about klib and uClib.
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diff --git a/configure.ac b/configure.ac
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index f7c27cd..f3c7214 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1538,6 +1538,16 @@ AC_ARG_VAR([SUID_CFLAGS],
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 AC_ARG_VAR([SUID_LDFLAGS],
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 	   [LDFLAGS used for binaries which are usually with the suid bit])
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+AC_ARG_VAR([DAEMON_CFLAGS],
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+	   [CFLAGS used for binaries which are usually executed as daemons])
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+AC_ARG_VAR([DAEMON_LDFLAGS],
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+	   [LDFLAGS used for binaries which are usually executed as daemons])
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+
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+AC_ARG_VAR([SOLIB_CFLAGS],
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+	   [CFLAGS used for shared libraries])
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+AC_ARG_VAR([SOLIB_LDFLAGS],
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+	   [LDFLAGS used for shared libraries])
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+
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 LIBS=""
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diff --git a/libblkid/src/Makemodule.am b/libblkid/src/Makemodule.am
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index 04d8621..1563976 100644
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--- a/libblkid/src/Makemodule.am
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+++ b/libblkid/src/Makemodule.am
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@@ -113,6 +113,7 @@ libblkid_la_LIBADD = libcommon.la
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 libblkid_la_CFLAGS = \
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+	$(SOLIB_CFLAGS) \
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 	-I$(ul_libblkid_incdir) \
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 	-I$(top_srcdir)/libblkid/src
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@@ -128,6 +129,7 @@ libblkid_la_DEPENDENCIES = \
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 	libblkid/src/blkid.h.in
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 libblkid_la_LDFLAGS = \
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+	$(SOLIB_LDFLAGS) \
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 	-Wl,--version-script=$(top_srcdir)/libblkid/src/blkid.sym \
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 	-version-info $(LIBBLKID_VERSION_INFO)
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diff --git a/libfdisk/src/Makemodule.am b/libfdisk/src/Makemodule.am
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index fbfb1b4..5c50001 100644
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--- a/libfdisk/src/Makemodule.am
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+++ b/libfdisk/src/Makemodule.am
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@@ -25,6 +25,8 @@ nodist_libfdisk_la_SOURCES = libfdisk/src/fdiskP.h
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 libfdisk_la_LIBADD = libcommon.la
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 libfdisk_la_CFLAGS = \
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+	$(AM_CFLAGS) \
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+	$(SOLIB_CFLAGS) \
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 	-I$(ul_libfdisk_incdir) \
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 	-I$(top_srcdir)/libfdisk/src
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@@ -39,6 +41,7 @@ libfdisk_la_CFLAGS += -I$(ul_libuuid_incdir)
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 endif
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 libfdisk_la_DEPENDENCIES = $(libfdisk_la_LIBADD)
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+libfdisk_la_LDFLAGS = $(SOLIB_LDFLAGS)
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 check_PROGRAMS += \
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diff --git a/libmount/src/Makemodule.am b/libmount/src/Makemodule.am
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index 494e02a..8ef07e5 100644
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--- a/libmount/src/Makemodule.am
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+++ b/libmount/src/Makemodule.am
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@@ -33,6 +33,7 @@ nodist_libmount_la_SOURCES = libmount/src/mountP.h
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 libmount_la_LIBADD = libcommon.la libblkid.la $(SELINUX_LIBS)
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 libmount_la_CFLAGS = \
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+	$(SOLIB_CFLAGS) \
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 	-I$(ul_libblkid_incdir) \
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 	-I$(ul_libmount_incdir) \
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 	-I$(top_srcdir)/libmount/src
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@@ -43,6 +44,7 @@ libmount_la_DEPENDENCIES = \
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 	libmount/src/libmount.h.in
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 libmount_la_LDFLAGS = \
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+	$(SOLIB_LDFLAGS) \
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 	-Wl,--version-script=$(top_srcdir)/libmount/src/libmount.sym \
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 	-version-info $(LIBMOUNT_VERSION_INFO)
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diff --git a/libuuid/src/Makemodule.am b/libuuid/src/Makemodule.am
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index 73f1ba9..a20cb4c 100644
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--- a/libuuid/src/Makemodule.am
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+++ b/libuuid/src/Makemodule.am
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@@ -29,9 +29,14 @@ libuuid_la_SOURCES = \
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 libuuid_la_DEPENDENCIES = libuuid/src/uuid.sym
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 libuuid_la_LIBADD       = $(SOCKET_LIBS)
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-libuuid_la_CFLAGS       = -I$(ul_libuuid_incdir) -Ilibuuid/src
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+
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+libuuid_la_CFLAGS = \
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+	 $(SOLIB_CFLAGS) \
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+	 -I$(ul_libuuid_incdir) \
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+	 -Ilibuuid/src
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 libuuid_la_LDFLAGS = \
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+	$(SOLIB_LDFLAGS) \
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 	-Wl,--version-script=$(top_srcdir)/libuuid/src/uuid.sym \
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 	-version-info $(LIBUUID_VERSION_INFO)
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diff --git a/misc-utils/Makemodule.am b/misc-utils/Makemodule.am
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index a615047..70a78f2 100644
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--- a/misc-utils/Makemodule.am
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+++ b/misc-utils/Makemodule.am
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@@ -77,7 +77,8 @@ if BUILD_UUIDD
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 usrsbin_exec_PROGRAMS += uuidd
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 dist_man_MANS += misc-utils/uuidd.8
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 uuidd_LDADD = $(LDADD) libuuid.la
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-uuidd_CFLAGS = $(AM_CFLAGS) -I$(ul_libuuid_incdir)
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+uuidd_CFLAGS = $(DAEMON_CFLAGS) $(AM_CFLAGS) -I$(ul_libuuid_incdir)
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+uuidd_LDFLAGS = $(DAEMON_LDFLAGS) $(AM_LDFLAGS)
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 uuidd_SOURCES = misc-utils/uuidd.c
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 if USE_SOCKET_ACTIVATION
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 uuidd_SOURCES += misc-utils/sd-daemon.c misc-utils/sd-daemon.h
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-- 
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2.7.4
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