Resync config/ from GCC.

This commit is contained in:
Joseph Myers 2012-05-29 15:58:15 +00:00
parent d6719f7e17
commit 75b6133098
13 changed files with 273 additions and 13 deletions

View File

@ -1,3 +1,38 @@
2012-05-29 Joseph Myers <joseph@codesourcery.com>
* mt-sde: Fix typos.
* stdint.m4: Fix typos.
* tcl.m4: Fix typos.
2012-04-03 Tristan Gingold <gingold@adacore.com>
* mmap.m4: Use *vms* instead of vms*.
2012-04-02 Tristan Gingold <gingold@adacore.com>
* math.m4 (GCC_CHECK_MATH_FUNC): Remove if-present
argument. Define the variable.
2012-03-26 Tristan Gingold <gingold@adacore.com>
* math.m4: New file.
2012-03-12 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* weakref.m4 (GCC_CHECK_ELF_STYLE_WEAKREF): Remove
alpha*-dec-osf*.
2012-01-22 Douglas B Rupp <rupp@gnat.com>
* config/mh-interix: Remove as unneeded.
* config/picflag.m4 (i[[34567]]86-*-interix3*):
Change triplet to i[[34567]]86-*-interix[[3-9]]*.
2012-01-04 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
PR bootstrap/51734
* picflag.m4: Remove s390 case statement.
2011-12-20 Andreas Schwab <schwab@linux-m68k.org> 2011-12-20 Andreas Schwab <schwab@linux-m68k.org>
* warnings.m4 (ACX_PROG_CC_WARNING_OPTS): Avoid leading dash in * warnings.m4 (ACX_PROG_CC_WARNING_OPTS): Avoid leading dash in
@ -5,6 +40,7 @@
2011-12-19 Andreas Schwab <schwab@linux-m68k.org> 2011-12-19 Andreas Schwab <schwab@linux-m68k.org>
PR bootstrap/51388
* warnings.m4 (ACX_PROG_CC_WARNING_OPTS) * warnings.m4 (ACX_PROG_CC_WARNING_OPTS)
(ACX_PROG_CC_WARNING_ALMOST_PEDANTIC): Run the test without the (ACX_PROG_CC_WARNING_ALMOST_PEDANTIC): Run the test without the
no- prefix. no- prefix.
@ -13,6 +49,14 @@
* acx.m4 (Test for GNAT): Update comment and add quotes in final test. * acx.m4 (Test for GNAT): Update comment and add quotes in final test.
2011-11-22 Iain Sandoe <iains@gcc.gnu.org>
* weakref.m4: New file.
2011-11-09 Richard Henderson <rth@redhat.com>
* asmcfi.m4: New file.
2011-11-02 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> 2011-11-02 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* mh-interix (LIBGCC2_DEBUG_CFLAGS): Remove. * mh-interix (LIBGCC2_DEBUG_CFLAGS): Remove.
@ -25,6 +69,15 @@
* elf.m4 (target_elf): Remove *-netware*. * elf.m4 (target_elf): Remove *-netware*.
2011-07-06 Uros Bizjak <ubizjak@gmail.com>
* mt-alphaieee (GOCFLAGS_FOR_TARGET): Add -mieee.
2011-06-15 Mike Stump <mikestump@comcast.net>
PR target/49461
* mh-darwin: Turn off -pie on darwin11 and later.
2011-04-20 Eric Botcazou <ebotcazou@adacore.com> 2011-04-20 Eric Botcazou <ebotcazou@adacore.com>
* bootstrap-lto.mk: Remove obsolete requirement. * bootstrap-lto.mk: Remove obsolete requirement.

15
config/asmcfi.m4 Normal file
View File

@ -0,0 +1,15 @@
;; Cribbed from libffi
AC_DEFUN([GCC_AS_CFI_PSEUDO_OP],
[AC_CACHE_CHECK([assembler .cfi pseudo-op support],
gcc_cv_as_cfi_pseudo_op, [
gcc_cv_as_cfi_pseudo_op=unknown
AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],,
[gcc_cv_as_cfi_pseudo_op=yes],
[gcc_cv_as_cfi_pseudo_op=no])
])
if test "x$gcc_cv_as_cfi_pseudo_op" = xyes; then
AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1,
[Define if your assembler supports .cfi_* directives.])
fi
])

50
config/math.m4 Normal file
View File

@ -0,0 +1,50 @@
dnl GCC_CHECK_LIBM
dnl
dnl Check whether -lm is available. This is a pre-requisite for
dnl GCC_CHECK_MATH_FUNC so that it will link with -lm.
AC_DEFUN([GCC_CHECK_LIBM],
[AC_CHECK_LIB([m],[sin])])
dnl GCC_CHECK_MATH_HEADERS
dnl
dnl Check for math.h and complex.h. This is a pre-requisite for
dnl GCC_CHECK_MATH_FUNC so that it includes the right headers.
dnl (Some systems, such as AIX or OpenVMS may define macro for math
dnl functions).
AC_DEFUN([GCC_CHECK_MATH_HEADERS],
[AC_CHECK_HEADERS_ONCE(math.h complex.h)])
dnl GCC_CHECK_MATH_FUNC([name])
dnl
dnl Check whether math function NAME is available on the system (by compiling
dnl and linking a C program) and run define HAVE_name on success.
dnl
dnl Note that OpenVMS system insists on including complex.h before math.h
AC_DEFUN([GCC_CHECK_MATH_FUNC],
[
AC_REQUIRE([GCC_CHECK_LIBM])
AC_REQUIRE([GCC_CHECK_MATH_HEADERS])
AC_CACHE_CHECK([for $1], [gcc_cv_math_func_$1],
[AC_LINK_IFELSE([
#ifdef HAVE_COMPLEX_H
#include <complex.h>
#endif
#ifdef HAVE_MATH_H
#include <math.h>
#endif
int (*ptr)() = (int (*)())$1;
int
main ()
{
return 0;
}
],
[gcc_cv_math_func_$1=yes],
[gcc_cv_math_func_$1=no])])
if test $gcc_cv_math_func_$1 = yes; then
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1),[1],
[Define to 1 if you have the `$1' function.])
fi
])

View File

@ -1,5 +1,7 @@
# The -mdynamic-no-pic ensures that the compiler executable is built without # The -mdynamic-no-pic ensures that the compiler executable is built without
# position-independent-code -- the usual default on Darwin. This fix speeds # position-independent-code -- the usual default on Darwin. This fix speeds
# compiles by 3-5%. # compiles by 3-5%.
BOOT_CFLAGS += -mdynamic-no-pic BOOT_CFLAGS += -mdynamic-no-pic
# Ensure we don't try and use -pie, as it is incompatible with pch.
BOOT_LDFLAGS += `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`

View File

@ -1,2 +0,0 @@
# The shell may not be in /bin.
SHELL = sh

View File

@ -5,4 +5,4 @@
# don't do it any more. # don't do it any more.
BOOT_ADAFLAGS = -gnatapg BOOT_ADAFLAGS = -gnatapg
BOOT_LDFLAGS = -Wl,-bbigtoc BOOT_LDFLAGS = -Wl,-bbigtoc
LDFLAGS = `case $(CC) in *gcc*) echo -Wl,-bbigtoc ;; esac;` LDFLAGS = `case '$(CC)' in *gcc*) echo -Wl,-bbigtoc ;; esac;`

97
config/mmap.m4 Normal file
View File

@ -0,0 +1,97 @@
dnl ----------------------------------------------------------------------
dnl This whole bit snagged from gcc
dnl
dnl mmap(2) blacklisting. Some platforms provide the mmap library routine
dnl but don't support all of the features we need from it.
dnl
AC_DEFUN([GCC_AC_FUNC_MMAP_BLACKLIST],
[
AC_CHECK_HEADER([sys/mman.h],
[gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no])
AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no])
if test "$gcc_header_sys_mman_h" != yes \
|| test "$gcc_func_mmap" != yes; then
gcc_cv_func_mmap_file=no
gcc_cv_func_mmap_dev_zero=no
gcc_cv_func_mmap_anon=no
else
AC_CACHE_CHECK([whether read-only mmap of a plain file works],
gcc_cv_func_mmap_file,
[# Add a system to this blacklist if
# mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
# memory area containing the same data that you'd get if you applied
# read() to the same fd. The only system known to have a problem here
# is VMS, where text files have record structure.
case "$host_os" in
*vms* | ultrix*)
gcc_cv_func_mmap_file=no ;;
*)
gcc_cv_func_mmap_file=yes;;
esac])
AC_CACHE_CHECK([whether mmap from /dev/zero works],
gcc_cv_func_mmap_dev_zero,
[# Add a system to this blacklist if it has mmap() but /dev/zero
# does not exist, or if mmapping /dev/zero does not give anonymous
# zeroed pages with both the following properties:
# 1. If you map N consecutive pages in with one call, and then
# unmap any subset of those pages, the pages that were not
# explicitly unmapped remain accessible.
# 2. If you map two adjacent blocks of memory and then unmap them
# both at once, they must both go away.
# Systems known to be in this category are Windows (all variants),
# VMS, and Darwin.
case "$host_os" in
*vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
gcc_cv_func_mmap_dev_zero=no ;;
*)
gcc_cv_func_mmap_dev_zero=yes;;
esac])
# Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>
#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
],
[int n = MAP_ANONYMOUS;])],
gcc_cv_decl_map_anon=yes,
gcc_cv_decl_map_anon=no)])
if test $gcc_cv_decl_map_anon = no; then
gcc_cv_func_mmap_anon=no
else
AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
gcc_cv_func_mmap_anon,
[# Add a system to this blacklist if it has mmap() and MAP_ANON or
# MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
# doesn't give anonymous zeroed pages with the same properties listed
# above for use of /dev/zero.
# Systems known to be in this category are Windows, VMS, and SCO Unix.
case "$host_os" in
*vms* | cygwin* | pe | mingw* | sco* | udk* )
gcc_cv_func_mmap_anon=no ;;
*)
gcc_cv_func_mmap_anon=yes;;
esac])
fi
fi
if test $gcc_cv_func_mmap_file = yes; then
AC_DEFINE(HAVE_MMAP_FILE, 1,
[Define if read-only mmap of a plain file works.])
fi
if test $gcc_cv_func_mmap_dev_zero = yes; then
AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
[Define if mmap of /dev/zero works.])
fi
if test $gcc_cv_func_mmap_anon = yes; then
AC_DEFINE(HAVE_MMAP_ANON, 1,
[Define if mmap with MAP_ANON(YMOUS) works.])
fi
])

View File

@ -1,2 +1,3 @@
CFLAGS_FOR_TARGET += -mieee CFLAGS_FOR_TARGET += -mieee
CXXFLAGS_FOR_TARGET += -mieee CXXFLAGS_FOR_TARGET += -mieee
GOCFLAGS_FOR_TARGET += -mieee

View File

@ -5,6 +5,6 @@
# as they have the D-to-I redirect for PC-relative loads. -mno-gpopt # as they have the D-to-I redirect for PC-relative loads. -mno-gpopt
# has two purposes: it allows libraries to be used in situations where # has two purposes: it allows libraries to be used in situations where
# $gp != our _gp, and it allows them to be built with -G8 while # $gp != our _gp, and it allows them to be built with -G8 while
# retaining link compability with -G0 and -G4. # retaining link compatibility with -G0 and -G4.
CFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-xonly -mno-gpopt CFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-xonly -mno-gpopt
CXXFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-xonly -mno-gpopt CXXFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-xonly -mno-gpopt

View File

@ -19,7 +19,7 @@ case "${$2}" in
;; ;;
i[[34567]]86-*-cygwin* | i[[34567]]86-*-mingw* | x86_64-*-mingw*) i[[34567]]86-*-cygwin* | i[[34567]]86-*-mingw* | x86_64-*-mingw*)
;; ;;
i[[34567]]86-*-interix3*) i[[34567]]86-*-interix[[3-9]]*)
# Interix 3.x gcc -fpic/-fPIC options generate broken code. # Interix 3.x gcc -fpic/-fPIC options generate broken code.
# Instead, we relocate shared libraries at runtime. # Instead, we relocate shared libraries at runtime.
;; ;;
@ -51,9 +51,6 @@ case "${$2}" in
m68k-*-*) m68k-*-*)
$1=-fpic $1=-fpic
;; ;;
s390*-*-*)
$1=-fpic
;;
# FIXME: Override -fPIC default in libgcc only? # FIXME: Override -fPIC default in libgcc only?
sh-*-linux* | sh[[2346lbe]]*-*-linux*) sh-*-linux* | sh[[2346lbe]]*-*-linux*)
$1=-fpic $1=-fpic

View File

@ -18,7 +18,7 @@ dnl the "ISO C9X: 7.18 Integer types <stdint.h>" section requires the
dnl existence of an include file <stdint.h> that defines a set of dnl existence of an include file <stdint.h> that defines a set of
dnl typedefs, especially uint8_t,int32_t,uintptr_t. dnl typedefs, especially uint8_t,int32_t,uintptr_t.
dnl Many older installations will not provide this file, but some will dnl Many older installations will not provide this file, but some will
dnl have the very same definitions in <inttypes.h>. In other enviroments dnl have the very same definitions in <inttypes.h>. In other environments
dnl we can use the inet-types in <sys/types.h> which would define the dnl we can use the inet-types in <sys/types.h> which would define the
dnl typedefs int8_t and u_int8_t respectivly. dnl typedefs int8_t and u_int8_t respectivly.
dnl dnl

View File

@ -290,7 +290,7 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
elif test "`uname -s`" = "Darwin"; then elif test "`uname -s`" = "Darwin"; then
# If Tcl was built as a framework, attempt to use the libraries # If Tcl was built as a framework, attempt to use the libraries
# from the framework at the given location so that linking works # from the framework at the given location so that linking works
# against Tcl.framework installed in an arbitary location. # against Tcl.framework installed in an arbitrary location.
case ${TCL_DEFS} in case ${TCL_DEFS} in
*TCL_FRAMEWORK*) *TCL_FRAMEWORK*)
if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
@ -373,7 +373,7 @@ AC_DEFUN([SC_LOAD_TKCONFIG], [
elif test "`uname -s`" = "Darwin"; then elif test "`uname -s`" = "Darwin"; then
# If Tk was built as a framework, attempt to use the libraries # If Tk was built as a framework, attempt to use the libraries
# from the framework at the given location so that linking works # from the framework at the given location so that linking works
# against Tk.framework installed in an arbitary location. # against Tk.framework installed in an arbitrary location.
case ${TK_DEFS} in case ${TK_DEFS} in
*TK_FRAMEWORK*) *TK_FRAMEWORK*)
if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
@ -815,7 +815,7 @@ AC_DEFUN([SC_ENABLE_LANGINFO], [
# #
# Defines the following variable: # Defines the following variable:
# #
# MAN_FLAGS - The apropriate flags for installManPage # MAN_FLAGS - The appropriate flags for installManPage
# according to the user's selection. # according to the user's selection.
# #
#-------------------------------------------------------------------- #--------------------------------------------------------------------

47
config/weakref.m4 Normal file
View File

@ -0,0 +1,47 @@
dnl Check if the target supports weak.
AC_DEFUN([GCC_CHECK_ATTRIBUTE_WEAK], [
AC_CACHE_CHECK([whether the target supports weak],
ac_cv_have_attribute_weak, [
weakref_m4_saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror"
AC_TRY_COMPILE([void __attribute__((weak)) foo(void) { }],
[], ac_cv_have_attribute_weak=yes,
ac_cv_have_attribute_weak=no)
CFLAGS="$weakref_m4_saved_CFLAGS"])
if test x"$ac_cv_have_attribute_weak" = xyes; then
AC_DEFINE(HAVE_ATTRIBUTE_WEAK, 1,
[Define to 1 if the target supports __attribute__((weak)).])
fi])
dnl Check whether weak refs work like the ELF ones.
dnl This means that the weak reference works without having to satify
dnl linkage for the item.
dnl There are targets (at least Darwin) where we have fully functional
dnl weakrefs at runtime, but must supply the referenced item at link time.
AC_DEFUN([GCC_CHECK_ELF_STYLE_WEAKREF], [
AC_CACHE_CHECK([whether weak refs work like ELF],
ac_cv_have_elf_style_weakref, [
weakref_m4_saved_CFLAGS="$CFLAGS"
case "${host}" in
*-apple-darwin*) CFLAGS="$CFLAGS -Wl,-undefined,dynamic_lookup" ;;
*) ;;
esac
AC_RUN_IFELSE([AC_LANG_SOURCE([[
extern void fNotToBeFound(void) __attribute__((weak));
int main ()
{
if (fNotToBeFound)
return 1;
else
return 0;
}
]])], ac_cv_have_elf_style_weakref=yes, ac_cv_have_elf_style_weakref=no, [
case "${host}" in
*-apple-darwin[[89]]*) ac_cv_have_elf_style_weakref=no ;;
*) ac_cv_have_elf_style_weakref=yes;;
esac])CFLAGS="$weakref_m4_saved_CFLAGS"])
if test x"$ac_cv_have_elf_style_weakref" = xyes; then
AC_DEFINE(HAVE_ELF_STYLE_WEAKREF, 1, [Define to 1 if target has a weakref that works like the ELF one.])
fi])