+2005-11-21 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * c-cppbuiltin.c (c_cpp_builtins): Define __pic__ and __PIC__ when
+ flag_pic is set.
+
+ * config/alpha/freebsd.h, config/alpha/linux.h,
+ config/arm/linux-elf.h, config/bfin/bfin.h,
+ config/cris/linux.h, config/darwin.h, config/freebsd-spec.h,
+ config/i386/beos-elf.h, config/i386/gnu.h,
+ config/i386/linux.h, config/i386/linux64.h, config/i386/nto.h,
+ config/i386/sco5.h, config/m32r/m32r.h, config/m68k/linux.h,
+ config/m68k/m68k.h, config/mips/linux.h, config/pa/pa-linux.h,
+ config/rs6000/linux64.h, config/rs6000/sysv4.h,
+ config/rs6000/vxworks.h, config/s390/linux.h, config/s390/tpf.h,
+ config/sh/linux.h, config/sh/sh.h, config/sol2.h,
+ config/sparc/linux.h, config/sparc/linux64.h,
+ config/xtensa/xtensa.h: Don't define __pic__ or __PIC__.
+
+ * doc/invoke.texi: Document that the macros __pic__ and __PIC__
+ are both defined when either flag -fpic or -fPIC are used.
+
2005-11-22 Joseph S. Myers <joseph@codesourcery.com>
* config/fp-bit.c (clzusi): New function.
cpp_define (pfile, "__FINITE_MATH_ONLY__=1");
else
cpp_define (pfile, "__FINITE_MATH_ONLY__=0");
+ if (flag_pic)
+ {
+ builtin_define_with_int_value ("__pic__", flag_pic);
+ builtin_define_with_int_value ("__PIC__", flag_pic);
+ }
if (flag_iso)
cpp_define (pfile, "__STRICT_ANSI__");
#define SUBTARGET_EXTRA_SPECS \
{ "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
-/* Provide a FBSD_TARGET_CPU_CPP_BUILTINS and CPP_SPEC appropriate for
- FreeBSD/alpha. Besides the dealing with
- the GCC option `-posix', and PIC issues as on all FreeBSD platforms, we must
- deal with the Alpha's FP issues. */
-
-#undef FBSD_TARGET_CPU_CPP_BUILTINS
-#define FBSD_TARGET_CPU_CPP_BUILTINS() \
- do \
- { \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
- } \
- while (0)
+/* Provide a CPP_SPEC appropriate for FreeBSD/alpha. Besides the
+ dealing with the GCC option `-posix', we must deal with the Alpha's
+ FP issues. */
#undef CPP_SPEC
#define CPP_SPEC "%(cpp_subtarget) %{posix:-D_POSIX_SOURCE}"
/* The GNU C++ standard library requires this. */ \
if (c_dialect_cxx ()) \
builtin_define ("_GNU_SOURCE"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} while (0)
#undef LIB_SPEC
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
{ \
builtin_define ("bfin"); \
builtin_define ("BFIN"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
#endif
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
if (flag_leading_underscore <= 0) \
builtin_define ("__NO_UNDERSCORES__"); \
} \
{ "-unexported_symbols_list", "-Zunexported_symbols_list" }, \
SUBTARGET_OPTION_TRANSLATE_TABLE
-#define SUBTARGET_OS_CPP_BUILTINS() \
- do \
- { \
- if (flag_pic) \
- builtin_define ("__PIC__"); \
- } \
- while (0)
-
/* These compiler options take n arguments. */
#undef WORD_SWITCH_TAKES_ARG
#define FBSD_CPP_SPEC " \
%(cpp_cpu) \
%(cpp_arch) \
- %{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE}"
/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add
builtin_define ("__stdcall=__attribute__((__stdcall__))"); \
builtin_define ("__cdecl=__attribute__((__cdecl__))"); \
builtin_assert ("system=beos"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
do \
{ \
HURD_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_assert ("system=qnxnto"); \
builtin_assert ("system=nto"); \
builtin_assert ("system=unix"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_assert ("system=svr3"); \
if (flag_iso) \
cpp_define (pfile, "_STRICT_ANSI"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_assert ("machine=m32r"); \
builtin_define (TARGET_BIG_ENDIAN \
? "__BIG_ENDIAN__" : "__LITTLE_ENDIAN__"); \
- if (flag_pic) \
- { \
- builtin_define ("__pic__"); \
- builtin_define ("__PIC__"); \
- } \
} \
while (0)
#undef CPP_SPEC
#if TARGET_DEFAULT & MASK_68881
#define CPP_SPEC \
- "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+ "%{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#else
#define CPP_SPEC \
- "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+ "%{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#endif
/* We override the ASM_SPEC from svr4.h because we must pass -m68040 down
} \
if (TARGET_CF_HWDIV) \
builtin_define ("__mcfhwdiv__"); \
- if (flag_pic) \
- { \
- builtin_define ("__pic__"); \
- if (flag_pic > 1) \
- builtin_define ("__PIC__"); \
- } \
builtin_assert ("cpu=m68k"); \
builtin_assert ("machine=m68k"); \
} \
#define TARGET_OS_CPP_BUILTINS() \
do { \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (TARGET_ABICALLS) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
/* The GNU C++ standard library requires this. */ \
if (c_dialect_cxx ()) \
builtin_define ("_GNU_SOURCE"); \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
builtin_assert ("machine=bigendian"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_define ("__PPC64__"); \
builtin_define ("__powerpc__"); \
builtin_define ("__powerpc64__"); \
- builtin_define ("__PIC__"); \
builtin_assert ("cpu=powerpc64"); \
builtin_assert ("machine=powerpc64"); \
} \
#define TARGET_OS_SYSV_CPP_BUILTINS() \
do \
{ \
- if (flag_pic == 1) \
- { \
- builtin_define ("__pic__=1"); \
- builtin_define ("__PIC__=1"); \
- } \
- else if (flag_pic == 2) \
- { \
- builtin_define ("__pic__=2"); \
- builtin_define ("__PIC__=2"); \
- } \
if (target_flags_explicit \
& MASK_RELOCATABLE) \
builtin_define ("_RELOCATABLE"); \
builtin_define ("__VXWORKS__"); \
if (!TARGET_SOFT_FLOAT) \
builtin_define ("__hardfp"); \
- if (flag_pic == 2) \
- { \
- builtin_define ("__PIC__=2"); \
- builtin_define ("__pic__=2"); \
- } \
- else if (flag_pic == 1) \
- { \
- builtin_define ("__PIC__=1"); \
- builtin_define ("__pic__=1"); \
- } \
\
/* C89 namespace violation! */ \
builtin_define ("CPU_FAMILY=PPC"); \
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_define_std ("tpf"); \
builtin_assert ("system=tpf"); \
builtin_define ("__ELF__"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_define ("__HITACHI__"); \
builtin_define (TARGET_LITTLE_ENDIAN \
? "__LITTLE_ENDIAN__" : "__BIG_ENDIAN__"); \
- if (flag_pic) \
- { \
- builtin_define ("__pic__"); \
- builtin_define ("__PIC__"); \
- } \
} while (0)
/* We can not debug without a frame pointer. */
builtin_define ("_LARGEFILE64_SOURCE=1"); \
builtin_define ("__EXTENSIONS__"); \
} \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
TARGET_SUB_OS_CPP_BUILTINS(); \
} while (0)
builtin_assert ("system=linux"); \
builtin_assert ("system=unix"); \
builtin_assert ("system=posix"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_assert ("system=linux"); \
builtin_assert ("system=unix"); \
builtin_assert ("system=posix"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} \
while (0)
builtin_define (TARGET_BIG_ENDIAN ? "__XTENSA_EB__" : "__XTENSA_EL__"); \
if (!TARGET_HARD_FLOAT) \
builtin_define ("__XTENSA_SOFT_FLOAT__"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
} while (0)
#define CPP_SPEC " %(subtarget_cpp_spec) "
but not for the Sun 386i. Code generated for the IBM RS/6000 is always
position-independent.
+When this flag is set, the macros @code{__pic__} and @code{__PIC__}
+are defined to 1.
+
@item -fPIC
@opindex fPIC
If supported for the target machine, emit position-independent code,
Position-independent code requires special support, and therefore works
only on certain machines.
+When this flag is set, the macros @code{__pic__} and @code{__PIC__}
+are defined to 2.
+
@item -fpie
@itemx -fPIE
@opindex fpie
projects / thirdparty / gcc.git / commitdiff
