/* Define if the compiler supports __builtin_memset. */
#undef HAVE_BUILTIN_MEMSET
-/* Define if compiler accepts -ftree-loop-distribute-patterns. */
+/* Define if CC compiler accepts -ftree-loop-distribute-patterns. */
#undef HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
-/* Define if compiler accepts -fno-stack-protector in an
+/* Define if TEST_CC compiler accepts -ftree-loop-distribute-patterns. */
+#undef HAVE_TEST_CC_INHIBIT_LOOP_TO_LIBCALL
+
+/* Define if CC compiler accepts -fno-stack-protector in an
__attribute__ ((__optimize__)). */
#undef HAVE_CC_NO_STACK_PROTECTOR
+/* Define if TEST_CC compiler accepts -fno-stack-protector in an
+ __attribute__ ((__optimize__)). */
+#undef HAVE_TEST_CC_NO_STACK_PROTECTOR
+
/* The level of stack protection in use for glibc as a whole.
May be overridden on a file-by-file basis. */
#ifndef STACK_PROTECTOR_LEVEL
config_vars="$config_vars
have-test-clangxx = $libc_cv_test_clangxx"
+
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector" >&5
printf %s "checking for -fstack-protector... " >&6; }
if test ${libc_cv_ssp+y}
then :
printf %s "(cached) " >&6
else case e in #(
- e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector -xc /dev/null -S -o /dev/null'
+ e) if { ac_try='${CC-cc} -Werror -fstack-protector -xc /dev/null -S -o /dev/null'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
else case e in #(
e) libc_cv_ssp=no ;;
esac
-fi
- ;;
+fi ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp" >&5
printf "%s\n" "$libc_cv_ssp" >&6; }
+if test "$TEST_CC" = "$CC"; then
+ libc_cv_test_ssp=$libc_cv_ssp
+else
+
+saved_CC="$CC"
+CC="$TEST_CC"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector in testing" >&5
+printf %s "checking for -fstack-protector in testing... " >&6; }
+if test ${libc_cv_test_ssp+y}
+then :
+ printf %s "(cached) " >&6
+else case e in #(
+ e) if { ac_try='${CC-cc} -Werror -fstack-protector -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+then :
+ libc_cv_test_ssp=yes
+else case e in #(
+ e) libc_cv_test_ssp=no ;;
+esac
+fi ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_ssp" >&5
+printf "%s\n" "$libc_cv_test_ssp" >&6; }
+
+CC="$saved_CC"
+
+fi
+
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector-strong" >&5
printf %s "checking for -fstack-protector-strong... " >&6; }
printf "%s\n" "#define HAVE_CC_NO_STACK_PROTECTOR 1" >>confdefs.h
fi
+if test "$libc_cv_test_ssp" = yes; then
+ printf "%s\n" "#define HAVE_TEST_CC_NO_STACK_PROTECTOR 1" >>confdefs.h
+
+fi
+
if test "$enable_stack_protector" = yes && test "$libc_cv_ssp" = yes; then
stack_protector="-fstack-protector"
config_vars="$config_vars
test-config-cflags-float-store = $libc_cv_test_cc_float_store"
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC accepts -fno-tree-loop-distribute-patterns with \
-__attribute__ ((__optimize__))" >&5
-printf %s "checking if $CC accepts -fno-tree-loop-distribute-patterns with \
-__attribute__ ((__optimize__))... " >&6; }
+conftest_code="
+void
+__attribute__ ((__optimize__ (\"-fno-tree-loop-distribute-patterns\")))
+foo (void) {}
+"
+
+cat > conftest.c <<EOF
+$conftest_code
+EOF
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if __attribute__ ((__optimize__(\"-fno-tree-loop-distribute-patterns\"))) works" >&5
+printf %s "checking if __attribute__ ((__optimize__(\"-fno-tree-loop-distribute-patterns\"))) works... " >&6; }
if test ${libc_cv_cc_loop_to_function+y}
then :
printf %s "(cached) " >&6
else case e in #(
- e) cat > conftest.c <<EOF
-void
-__attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
-foo (void) {}
-EOF
-libc_cv_cc_loop_to_function=no
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c'
+ e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c -Werror conftest.c -o conftest 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
-then
- libc_cv_cc_loop_to_function=yes
-fi
-rm -f conftest* ;;
+ then
+ libc_cv_cc_loop_to_function=yes
+ else
+ libc_cv_cc_loop_to_function=no
+ fi
+ ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_loop_to_function" >&5
printf "%s\n" "$libc_cv_cc_loop_to_function" >&6; }
+if test "$TEST_CC" = "$CC"; then
+ libc_cv_test_cc_loop_to_function=$libc_cv_cc_loop_to_function
+else
+
+saved_CC="$CC"
+CC="$TEST_CC"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if __attribute__ ((__optimize__(\"-fno-tree-loop-distribute-patterns\"))) works in testing" >&5
+printf %s "checking if __attribute__ ((__optimize__(\"-fno-tree-loop-distribute-patterns\"))) works in testing... " >&6; }
+if test ${libc_cv_test_cc_loop_to_function+y}
+then :
+ printf %s "(cached) " >&6
+else case e in #(
+ e) if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -c -Werror conftest.c -o conftest 1>&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ libc_cv_test_cc_loop_to_function=yes
+ else
+ libc_cv_test_cc_loop_to_function=no
+ fi ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_cc_loop_to_function" >&5
+printf "%s\n" "$libc_cv_test_cc_loop_to_function" >&6; }
+
+CC="$saved_CC"
+
+fi
+rm -f conftest*
if test $libc_cv_cc_loop_to_function = yes; then
printf "%s\n" "#define HAVE_CC_INHIBIT_LOOP_TO_LIBCALL 1" >>confdefs.h
fi
+if test $libc_cv_test_cc_loop_to_function = yes; then
+ printf "%s\n" "#define HAVE_TEST_CC_INHIBIT_LOOP_TO_LIBCALL 1" >>confdefs.h
+
+fi
)
LIBC_CONFIG_VAR([have-test-clangxx], [$libc_cv_test_clangxx])
-AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl
-LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector],
- [libc_cv_ssp=yes],
- [libc_cv_ssp=no])
-])
+LIBC_TRY_CC_AND_TEST_CC_OPTION([for -fstack-protector],
+ [-Werror -fstack-protector],
+ libc_cv_ssp,
+ [libc_cv_ssp=yes],
+ [libc_cv_ssp=no],
+ libc_cv_test_ssp,
+ [libc_cv_test_ssp=yes],
+ [libc_cv_test_ssp=no])
AC_CACHE_CHECK(for -fstack-protector-strong, libc_cv_ssp_strong, [dnl
LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector-strong],
no_stack_protector="-fno-stack-protector -DSTACK_PROTECTOR_LEVEL=0"
AC_DEFINE(HAVE_CC_NO_STACK_PROTECTOR)
fi
+if test "$libc_cv_test_ssp" = yes; then
+ AC_DEFINE(HAVE_TEST_CC_NO_STACK_PROTECTOR)
+fi
+
if test "$enable_stack_protector" = yes && test "$libc_cv_ssp" = yes; then
stack_protector="-fstack-protector"
LIBC_CONFIG_VAR([test-config-cflags-float-store],
[$libc_cv_test_cc_float_store])
-AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \
-__attribute__ ((__optimize__)), libc_cv_cc_loop_to_function, [dnl
-cat > conftest.c <<EOF
+conftest_code="
void
-__attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
+__attribute__ ((__optimize__ (\"-fno-tree-loop-distribute-patterns\")))
foo (void) {}
-EOF
-libc_cv_cc_loop_to_function=no
-if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c])
-then
- libc_cv_cc_loop_to_function=yes
-fi
-rm -f conftest*])
+"
+LIBC_TRY_CC_AND_TEST_CC_COMMAND([if __attribute__ ((__optimize__("-fno-tree-loop-distribute-patterns"))) works],
+ [$conftest_code],
+ [-c -Werror],
+ libc_cv_cc_loop_to_function,
+ [libc_cv_cc_loop_to_function=yes],
+ [libc_cv_cc_loop_to_function=no],
+ libc_cv_test_cc_loop_to_function,
+ [libc_cv_test_cc_loop_to_function=yes],
+ [libc_cv_test_cc_loop_to_function=no])
if test $libc_cv_cc_loop_to_function = yes; then
AC_DEFINE(HAVE_CC_INHIBIT_LOOP_TO_LIBCALL)
fi
+if test $libc_cv_test_cc_loop_to_function = yes; then
+ AC_DEFINE(HAVE_TEST_CC_INHIBIT_LOOP_TO_LIBCALL)
+fi
AC_SUBST(libc_cv_cc_loop_to_function)
LIBC_TRY_CC_AND_TEST_CC_OPTION([for -Wimplicit-fallthrough],
--- /dev/null
+/* Miscellaneous definitions for both glibc build and test.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _INCLUDE_MISC_H
+#define _INCLUDE_MISC_H
+
+#include <config.h>
+
+/* Add the compiler optimization to inhibit loop transformation to library
+ calls. This is used to avoid recursive calls in memset and memmove
+ default implementations in tests. */
+#ifdef HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
+# define inhibit_loop_to_libcall \
+ __attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
+#else
+# define inhibit_loop_to_libcall
+#endif
+
+#ifdef HAVE_TEST_CC_INHIBIT_LOOP_TO_LIBCALL
+# define test_cc_inhibit_loop_to_libcall \
+ __attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
+#else
+# define test_cc_inhibit_loop_to_libcall
+#endif
+
+/* Used to disable stack protection in sensitive places, like ifunc
+ resolvers and early static TLS init. */
+#ifdef __clang__
+# define cc_inhibit_stack_protector \
+ __attribute__((no_stack_protector))
+#else
+# define cc_inhibit_stack_protector \
+ __attribute__ ((__optimize__ ("-fno-stack-protector")))
+#endif
+
+#if IS_IN (testsuite) || IS_IN (testsuite_internal)
+# ifdef HAVE_TEST_CC_NO_STACK_PROTECTOR
+# define test_inhibit_stack_protector cc_inhibit_stack_protector
+# define inhibit_stack_protector cc_inhibit_stack_protector
+# else
+# define test_inhibit_stack_protector
+# define inhibit_stack_protector
+# endif
+#else
+# ifdef HAVE_CC_NO_STACK_PROTECTOR
+# define inhibit_stack_protector cc_inhibit_stack_protector
+# else
+# define test_inhibit_stack_protector
+# endif
+#endif
+
+#endif
# define IN_MODULE (-1)
#endif
+#include <libc-misc.h>
+
#ifndef _ISOMAC
/* This is defined for the compilation of all C library code. features.h
#define attribute_relro __attribute__ ((section (".data.rel.ro")))
-/* Used to disable stack protection in sensitive places, like ifunc
- resolvers and early static TLS init. */
-#ifdef HAVE_CC_NO_STACK_PROTECTOR
-# define inhibit_stack_protector \
- __attribute__ ((__optimize__ ("-fno-stack-protector")))
-#else
-# define inhibit_stack_protector
-#endif
-
/* The following macros are used for PLT bypassing within libc.so
(and if needed other libraries similarly).
First of all, you need to have the function prototyped somewhere,
#define libm_ifunc_init()
#define libm_ifunc(name, expr) \
__ifunc (name, name, expr, void, libm_ifunc_init)
-
-/* Add the compiler optimization to inhibit loop transformation to library
- calls. This is used to avoid recursive calls in memset and memmove
- default implementations. */
-#ifdef HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
-# define inhibit_loop_to_libcall \
- __attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
-#else
-# define inhibit_loop_to_libcall
-#endif
\f
/* These macros facilitate sharing source files with gnulib.
/* Naive implementation to verify results. */
char *
-inhibit_loop_to_libcall
+test_cc_inhibit_loop_to_libcall
simple_memmove (char *dst, const char *src, size_t n)
{
char *ret = dst;
/* Naive implementation to verify results. */
CHAR *
-inhibit_loop_to_libcall
+test_cc_inhibit_loop_to_libcall
SIMPLE_MEMSET (CHAR *s, int c, size_t n)
{
CHAR *r = s, *end = s + n;
#undef __USE_STRING_INLINES
-/* We are compiled under _ISOMAC, so libc-symbols.h does not do this
- for us. */
-#include "config.h"
-#ifdef HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
-# define inhibit_loop_to_libcall \
- __attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
-#else
-# define inhibit_loop_to_libcall
-#endif
-
+#include "libc-misc.h"
#include <getopt.h>
#include <stdint.h>
#include <stdio.h>
projects / thirdparty / glibc.git / commitdiff
