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gcc/config/picflag.m4
Douglas Rupp daecebc805 Interix resurrection
2012-01-22  Douglas B Rupp  <rupp@gnat.com>

	* <toplevel>/config/mh-interix: Remove as unneeded.
	* <toplevel>/config/picflag.m4 (i[[34567]]86-*-interix3*):
	Change triplet to i[[34567]]86-*-interix[[3-9]]*.

	* <toplevel>/configure.ac: Remove reference to mh-interix.
	* <toplevel>/configure: Regenerate.

	* <toplevel>/libada/configure: Regenerate.

	* <toplevel>libgcc/config.host (i[34567]86-*-interix3*):
	Change triplet to i[34567]86-*-interix[3-9]*.
	* <toplevel>/libgcc/configure: Regenerate.

	* <toplevel>/liberty/configure: Regenerate.

	* config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
	configurations. Change triplet to i[34567]86-*-interix[3-9]*.
	(extra_options) interix.opt -> i386/interix.opt"
	(extra_objs):Add winnt-stubs.o
	* configure.ac: Add interix to target_os .comm on PE check.
	* configure: Regenerate.
	* config/interix3.h: Delete and move bits to..
	* config/interix.h: Delete and move bits to..
	* config/i386/i386-interix3.h: Delete and move bits to..
	* config/i386/i386-interix.h: ..here.
	(TARGET_CPU_DEFAULT): Remove redefinition.
	(TARGET_ASM_CONSTRUCTOR): Undefine.
	(SUBTARGET_SWITCHES): Define for ms-bitfields.
	(TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
	(PTRDIFF_TYPE): Define.
	(LONG_DOUBLE_TYPE_SIZE): Define.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
	(SUBTARGET_OVERRIDE_OPTIONS): Remove.
	(TARGET_SECTION_TYPE_FLAGS): Define.
	(ASM_DECLARE_FUNCTION_NAME): Define.
	(ASM_OUTPUT_EXTERNAL): Define.
	(ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
	(ASM_OUTPUT_ALIGNED_BSS): Define.
	(PCC_BITFIELD_TYPE_MATTERS): Define.
	(USE_CONST_SECTION): Define.
	(SUBTARGET_ENCODE_SECTION_INFO): Remove.
	(TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
	(SUPPORTS_ONE_ONLY): Remove.
	(I386_PE_STRIP_ENCODING): Define.
	* config/interix.opt: Delete and move bits to..
	* config/i386/interix.opt: ..here. New.
	(mpe-aligned-commons): Add.
	* config/i386/t-interix: Add copyright header.
	(winnt-stubs.o): Add rule.

	* testsuite/gcc.dg/builtins-config.h: (HAVE_C99_RUNTIME):
	Do not define for Interix.

From-SVN: r183406
2012-01-23 06:25:28 +00:00

93 lines
2.3 KiB
Plaintext

# _GCC_PICFLAG(FLAG, DISPATCH)
# ----------------------------
# Store PIC flag corresponding to DISPATCH triplet in FLAG.
# Explit use of -fpic in CFLAGS corresponding to FLAG overrides default.
AC_DEFUN([_GCC_PICFLAG], [
case "${$2}" in
# PIC is the default on some targets or must not be used.
*-*-darwin*)
# PIC is the default on this platform
# Common symbols not allowed in MH_DYLIB files
$1=-fno-common
;;
alpha*-dec-osf5*)
# PIC is the default.
;;
hppa*64*-*-hpux*)
# PIC is the default for 64-bit PA HP-UX.
;;
i[[34567]]86-*-cygwin* | i[[34567]]86-*-mingw* | x86_64-*-mingw*)
;;
i[[34567]]86-*-interix[[3-9]]*)
# Interix 3.x gcc -fpic/-fPIC options generate broken code.
# Instead, we relocate shared libraries at runtime.
;;
i[[34567]]86-*-nto-qnx*)
# QNX uses GNU C++, but need to define -shared option too, otherwise
# it will coredump.
$1='-fPIC -shared'
;;
i[[34567]]86-pc-msdosdjgpp*)
# DJGPP does not support shared libraries at all.
;;
ia64*-*-hpux*)
# On IA64 HP-UX, PIC is the default but the pic flag
# sets the default TLS model and affects inlining.
$1=-fPIC
;;
mips-sgi-irix6*)
# PIC is the default.
;;
rs6000-ibm-aix* | powerpc-ibm-aix*)
# All AIX code is PIC.
;;
# Some targets support both -fPIC and -fpic, but prefer the latter.
# FIXME: Why?
i[[34567]]86-*-* | x86_64-*-*)
$1=-fpic
;;
m68k-*-*)
$1=-fpic
;;
# FIXME: Override -fPIC default in libgcc only?
sh-*-linux* | sh[[2346lbe]]*-*-linux*)
$1=-fpic
;;
# FIXME: Simplify to sh*-*-netbsd*?
sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
sh64-*-netbsd* | sh64l*-*-netbsd*)
$1=-fpic
;;
# Default to -fPIC unless specified otherwise.
*)
$1=-fPIC
;;
esac
# If the user explicitly uses -fpic/-fPIC, keep that.
case "${m4_bpatsubsts($1, PICFLAG, CFLAGS)}" in
*-fpic*)
$1=-fpic
;;
*-fPIC*)
$1=-fPIC
;;
esac
])
# GCC_PICFLAG
# -----------
# Store host PIC flag in PICFLAG.
AC_DEFUN([GCC_PICFLAG], [
AC_REQUIRE([AC_CANONICAL_HOST])
_GCC_PICFLAG([PICFLAG], [host])])
# GCC_PICFLAG_FOR_TARGET
# ----------------------
# Store target PIC flag in PICFLAG_FOR_TARGET.
AC_DEFUN([GCC_PICFLAG_FOR_TARGET], [
AC_REQUIRE([AC_CANONICAL_TARGET])
_GCC_PICFLAG([PICFLAG_FOR_TARGET], [target])])