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* [gcc r13-4257] Revert "configure: Implement --enable-host-bind-now"
@ 2022-11-23 2:11 Marek Polacek
0 siblings, 0 replies; only message in thread
From: Marek Polacek @ 2022-11-23 2:11 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:30f399ee9318bcb44e3e2debde086303157a347d
commit r13-4257-g30f399ee9318bcb44e3e2debde086303157a347d
Author: Marek Polacek <polacek@redhat.com>
Date: Tue Nov 22 21:10:19 2022 -0500
Revert "configure: Implement --enable-host-bind-now"
This reverts commit 258d7149f92f19380c9f7763618d62408c064e60.
Diff:
---
c++tools/configure | 11 -----------
c++tools/configure.ac | 7 -------
gcc/configure | 20 ++------------------
gcc/configure.ac | 13 +------------
gcc/doc/install.texi | 6 ------
lto-plugin/configure | 20 ++------------------
lto-plugin/configure.ac | 11 -----------
7 files changed, 5 insertions(+), 83 deletions(-)
diff --git a/c++tools/configure b/c++tools/configure
index 006efe07b35..88087009383 100755
--- a/c++tools/configure
+++ b/c++tools/configure
@@ -628,7 +628,6 @@ EGREP
GREP
CXXCPP
LD_PICFLAG
-enable_host_bind_now
PICFLAG
MAINTAINER
CXX_AUX_TOOLS
@@ -703,7 +702,6 @@ enable_maintainer_mode
enable_checking
enable_default_pie
enable_host_pie
-enable_host_bind_now
with_gcc_major_version_only
'
ac_precious_vars='build_alias
@@ -1338,7 +1336,6 @@ Optional Features:
yes,no,all,none,release.
--enable-default-pie enable Position Independent Executable as default
--enable-host-pie build host code as PIE
- --enable-host-bind-now link host code as BIND_NOW
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
@@ -3010,14 +3007,6 @@ fi
-# Enable --enable-host-bind-now
-# Check whether --enable-host-bind-now was given.
-if test "${enable_host_bind_now+set}" = set; then :
- enableval=$enable_host_bind_now; LD_PICFLAG="$LD_PICFLAG -Wl,-z,now"
-fi
-
-
-
# Check if O_CLOEXEC is defined by fcntl
diff --git a/c++tools/configure.ac b/c++tools/configure.ac
index d3f23f66f00..1e42689f2eb 100644
--- a/c++tools/configure.ac
+++ b/c++tools/configure.ac
@@ -110,13 +110,6 @@ AC_ARG_ENABLE(host-pie,
[build host code as PIE])],
[PICFLAG=-fPIE; LD_PICFLAG=-pie], [])
AC_SUBST(PICFLAG)
-
-# Enable --enable-host-bind-now
-AC_ARG_ENABLE(host-bind-now,
-[AS_HELP_STRING([--enable-host-bind-now],
- [link host code as BIND_NOW])],
-[LD_PICFLAG="$LD_PICFLAG -Wl,-z,now"], [])
-AC_SUBST(enable_host_bind_now)
AC_SUBST(LD_PICFLAG)
# Check if O_CLOEXEC is defined by fcntl
diff --git a/gcc/configure b/gcc/configure
index c45f5367d19..f631830386d 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -635,7 +635,6 @@ CET_HOST_FLAGS
LD_PICFLAG
PICFLAG
enable_default_pie
-enable_host_bind_now
enable_host_pie
enable_host_shared
enable_plugin
@@ -1027,7 +1026,6 @@ enable_version_specific_runtime_libs
enable_plugin
enable_host_shared
enable_host_pie
-enable_host_bind_now
enable_libquadmath_support
with_linker_hash_style
with_diagnostics_color
@@ -1791,7 +1789,6 @@ Optional Features:
--enable-plugin enable plugin support
--enable-host-shared build host code as shared libraries
--enable-host-pie build host code as PIE
- --enable-host-bind-now link host code as BIND_NOW
--disable-libquadmath-support
disable libquadmath support for Fortran
--enable-default-pie enable Position Independent Executable as default
@@ -19715,7 +19712,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 19730 "configure"
+#line 19727 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -19821,7 +19818,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 19836 "configure"
+#line 19833 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -31963,14 +31960,6 @@ fi
-# Enable --enable-host-bind-now
-# Check whether --enable-host-bind-now was given.
-if test "${enable_host_bind_now+set}" = set; then :
- enableval=$enable_host_bind_now;
-fi
-
-
-
# Check whether --enable-libquadmath-support was given.
if test "${enable_libquadmath_support+set}" = set; then :
enableval=$enable_libquadmath_support; ENABLE_LIBQUADMATH_SUPPORT=$enableval
@@ -32157,8 +32146,6 @@ else
PICFLAG=
fi
-
-
if test x$enable_host_pie = xyes; then
LD_PICFLAG=-pie
elif test x$gcc_cv_no_pie = xyes; then
@@ -32167,9 +32154,6 @@ else
LD_PICFLAG=
fi
-if test x$enable_host_bind_now = xyes; then
- LD_PICFLAG="$LD_PICFLAG -Wl,-z,now"
-fi
diff --git a/gcc/configure.ac b/gcc/configure.ac
index da95b611c66..f5b23b92df1 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -7373,12 +7373,6 @@ AC_ARG_ENABLE(host-pie,
[build host code as PIE])])
AC_SUBST(enable_host_pie)
-# Enable --enable-host-bind-now
-AC_ARG_ENABLE(host-bind-now,
-[AS_HELP_STRING([--enable-host-bind-now],
- [link host code as BIND_NOW])])
-AC_SUBST(enable_host_bind_now)
-
AC_ARG_ENABLE(libquadmath-support,
[AS_HELP_STRING([--disable-libquadmath-support],
[disable libquadmath support for Fortran])],
@@ -7520,8 +7514,6 @@ else
PICFLAG=
fi
-AC_SUBST([PICFLAG])
-
if test x$enable_host_pie = xyes; then
LD_PICFLAG=-pie
elif test x$gcc_cv_no_pie = xyes; then
@@ -7530,10 +7522,7 @@ else
LD_PICFLAG=
fi
-if test x$enable_host_bind_now = xyes; then
- LD_PICFLAG="$LD_PICFLAG -Wl,-z,now"
-fi
-
+AC_SUBST([PICFLAG])
AC_SUBST([LD_PICFLAG])
# Enable Intel CET on Intel CET enabled host if jit is enabled.
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index ac36e9aff4c..b91fbe0216c 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -1046,12 +1046,6 @@ protection against Return Oriented Programming (ROP) attacks.
in which case @option{-fPIC} is used when compiling, and @option{-pie} when
linking.
-@item --enable-host-bind-now
-Specify that the @emph{host} executables should be linked with the option
-@option{-Wl,-z,now}, which means that the dynamic linker will resolve all
-symbols when the executables are started, and that in turn allows RELRO to
-mark the GOT read-only, resulting in better security.
-
@item @anchor{with-gnu-as}--with-gnu-as
Specify that the compiler should assume that the
assembler it finds is the GNU assembler. However, this does not modify
diff --git a/lto-plugin/configure b/lto-plugin/configure
index 3467defd416..d522bd24c95 100755
--- a/lto-plugin/configure
+++ b/lto-plugin/configure
@@ -663,7 +663,6 @@ accel_dir_suffix
gcc_build_dir
CET_HOST_FLAGS
ac_lto_plugin_ldflags
-enable_host_bind_now
ac_lto_plugin_warn_cflags
EGREP
GREP
@@ -779,7 +778,6 @@ enable_maintainer_mode
with_libiberty
enable_dependency_tracking
enable_largefile
-enable_host_bind_now
enable_cet
with_gcc_major_version_only
enable_shared
@@ -1427,7 +1425,6 @@ Optional Features:
--disable-dependency-tracking
speeds up one-time build
--disable-largefile omit support for large files
- --enable-host-bind-now link host code as BIND_NOW
--enable-cet enable Intel CET in host libraries [default=auto]
--enable-shared[=PKGS] build shared libraries [default=yes]
--enable-static[=PKGS] build static libraries [default=yes]
@@ -5672,19 +5669,6 @@ if test "x$have_static_libgcc" = xyes; then
ac_lto_plugin_ldflags="-Wc,-static-libgcc"
fi
-# Enable --enable-host-bind-now
-# Check whether --enable-host-bind-now was given.
-if test "${enable_host_bind_now+set}" = set; then :
- enableval=$enable_host_bind_now;
-fi
-
-
-
-if test x$enable_host_bind_now = xyes; then
- ac_lto_plugin_ldflags="$ac_lto_plugin_ldflags -Wl,-z,now"
-fi
-
-
# Check whether --enable-cet was given.
if test "${enable_cet+set}" = set; then :
@@ -12150,7 +12134,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12165 "configure"
+#line 12137 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12256,7 +12240,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12271 "configure"
+#line 12243 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
diff --git a/lto-plugin/configure.ac b/lto-plugin/configure.ac
index 84f2a60b480..0a7202782ae 100644
--- a/lto-plugin/configure.ac
+++ b/lto-plugin/configure.ac
@@ -25,17 +25,6 @@ LDFLAGS="$saved_LDFLAGS"
if test "x$have_static_libgcc" = xyes; then
ac_lto_plugin_ldflags="-Wc,-static-libgcc"
fi
-
-# Enable --enable-host-bind-now
-AC_ARG_ENABLE(host-bind-now,
-[AS_HELP_STRING([--enable-host-bind-now],
- [link host code as BIND_NOW])])
-AC_SUBST(enable_host_bind_now)
-
-if test x$enable_host_bind_now = xyes; then
- ac_lto_plugin_ldflags="$ac_lto_plugin_ldflags -Wl,-z,now"
-fi
-
AC_SUBST(ac_lto_plugin_ldflags)
GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
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