/* Target definitions for GNU compiler for PowerPC running System V.4
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005 Free Software Foundation, Inc.
+ 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
License for more details.
You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING. If not, write to the
- Free Software Foundation, 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA. */
+ along with GCC; see the file COPYING3. If not see
+ <http://www.gnu.org/licenses/>. */
/* Header files should be C++ aware in general. */
#undef NO_IMPLICIT_EXTERN_C
\
/* Treat -fPIC the same as -mrelocatable. */ \
if (flag_pic > 1 && DEFAULT_ABI != ABI_AIX) \
- target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
+ { \
+ target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC; \
+ TARGET_NO_FP_IN_TOC = 1; \
+ } \
\
else if (TARGET_RELOCATABLE) \
flag_pic = 2; \
so it is not available to the normal user. */
#define FIXED_R13 1
-/* Size of the V.4 varargs area if needed. */
-/* Override rs6000.h definition. */
-#undef RS6000_VARARGS_AREA
-#define RS6000_VARARGS_AREA (current_function_stdarg ? RS6000_VARARGS_SIZE : 0)
-
/* Override default big endianism definitions in rs6000.h. */
#undef BYTES_BIG_ENDIAN
#undef WORDS_BIG_ENDIAN
#define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
#define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
-/* Besides the usual ELF sections, we need a toc section. */
-/* Override elfos.h definition. */
-#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
-
-/* Override elfos.h definition. */
-#undef EXTRA_SECTION_FUNCTIONS
-#define EXTRA_SECTION_FUNCTIONS \
- TOC_SECTION_FUNCTION \
- SDATA_SECTION_FUNCTION \
- SDATA2_SECTION_FUNCTION \
- SBSS_SECTION_FUNCTION \
- INIT_SECTION_FUNCTION \
- FINI_SECTION_FUNCTION
-
-#define TOC_SECTION_FUNCTION \
-void \
-toc_section (void) \
-{ \
- if (in_section != in_toc) \
- { \
- in_section = in_toc; \
- if (DEFAULT_ABI == ABI_AIX \
- && TARGET_MINIMAL_TOC \
- && !TARGET_RELOCATABLE) \
- { \
- if (! toc_initialized) \
- { \
- toc_initialized = 1; \
- fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
- (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); \
- fprintf (asm_out_file, "\t.tc "); \
- ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
- ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
- fprintf (asm_out_file, "\n"); \
- \
- fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
- ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
- fprintf (asm_out_file, " = .+32768\n"); \
- } \
- else \
- fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
- } \
- else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) \
- fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
- else \
- { \
- fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
- if (! toc_initialized) \
- { \
- ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
- fprintf (asm_out_file, " = .+32768\n"); \
- toc_initialized = 1; \
- } \
- } \
- } \
-} \
- \
-extern int in_toc_section (void); \
-int in_toc_section (void) \
-{ \
- return in_section == in_toc; \
-}
-
-#define SDATA_SECTION_FUNCTION \
-void \
-sdata_section (void) \
-{ \
- if (in_section != in_sdata) \
- { \
- in_section = in_sdata; \
- fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
- } \
-}
-
-#define SDATA2_SECTION_FUNCTION \
-void \
-sdata2_section (void) \
-{ \
- if (in_section != in_sdata2) \
- { \
- in_section = in_sdata2; \
- fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP); \
- } \
-}
-
-#define SBSS_SECTION_FUNCTION \
-void \
-sbss_section (void) \
-{ \
- if (in_section != in_sbss) \
- { \
- in_section = in_sbss; \
- fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \
- } \
-}
-
-#define INIT_SECTION_FUNCTION \
-void \
-init_section (void) \
-{ \
- if (in_section != in_init) \
- { \
- in_section = in_init; \
- fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP); \
- } \
-}
-
-#define FINI_SECTION_FUNCTION \
-void \
-fini_section (void) \
-{ \
- if (in_section != in_fini) \
- { \
- in_section = in_fini; \
- fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP); \
- } \
-}
-
/* Override default elf definitions. */
+#define TARGET_ASM_INIT_SECTIONS rs6000_elf_asm_init_sections
+#undef TARGET_ASM_RELOC_RW_MASK
+#define TARGET_ASM_RELOC_RW_MASK rs6000_elf_reloc_rw_mask
#undef TARGET_ASM_SELECT_RTX_SECTION
#define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
-#undef TARGET_ASM_SELECT_SECTION
-#define TARGET_ASM_SELECT_SECTION rs6000_elf_select_section
-#define TARGET_ASM_UNIQUE_SECTION rs6000_elf_unique_section
/* Return nonzero if this entry is to be written into the constant pool
in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
|| (!TARGET_NO_FP_IN_TOC \
&& !TARGET_RELOCATABLE \
&& GET_CODE (X) == CONST_DOUBLE \
- && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
+ && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
&& BITS_PER_WORD == HOST_BITS_PER_INT)))
/* These macros generate the special .type and .size directives which
#define LCOMM_ASM_OP "\t.lcomm\t"
-/* Override elfos.h definition. */
-#undef ASM_OUTPUT_ALIGNED_LOCAL
-#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
+/* Describe how to emit uninitialized local items. */
+#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
do { \
- if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \
- && (SIZE) <= g_switch_value) \
+ if ((DECL) && rs6000_elf_in_small_data_p (DECL)) \
{ \
- sbss_section (); \
+ switch_to_section (sbss_section); \
ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
ASM_OUTPUT_LABEL (FILE, NAME); \
ASM_OUTPUT_SKIP (FILE, SIZE); \
/* Describe how to emit uninitialized external linkage items. */
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
do { \
- ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
+ ASM_OUTPUT_ALIGNED_DECL_LOCAL (FILE, DECL, NAME, SIZE, ALIGN); \
} while (0)
#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
/* Historically we have also supported stabs debugging. */
#define DBX_DEBUGGING_INFO 1
-#define DBX_REGISTER_NUMBER(REGNO) rs6000_dbx_register_number (REGNO)
-
-/* Map register numbers held in the call frame info that gcc has
- collected using DWARF_FRAME_REGNUM to those that should be output in
- .debug_frame and .eh_frame. We continue to use gcc hard reg numbers
- for .eh_frame, but use the numbers mandated by the various ABIs for
- .debug_frame. rs6000_emit_prologue has translated any combination of
- CR2, CR3, CR4 saves to a save of CR2. The actual code emitted saves
- the whole of CR, so we map CR2_REGNO to the DWARF reg for CR. */
-#define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) \
- ((FOR_EH) ? (REGNO) \
- : (REGNO) == CR2_REGNO ? 64 \
- : DBX_REGISTER_NUMBER (REGNO))
-
#define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info
#define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p
-#define TARGET_SECTION_TYPE_FLAGS rs6000_elf_section_type_flags
/* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
#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"); \
/* Override svr4.h definition. */
#undef ASM_SPEC
#define ASM_SPEC "%(asm_cpu) \
-%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
+%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
%{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
%{memb|msdata|msdata=eabi: -memb} \
#endif
/* Pass -G xxx to the compiler and set correct endian mode. */
-#define CC1_SPEC "%{G*} \
+#define CC1_SPEC "%{G*} %(cc1_cpu) \
%{mlittle|mlittle-endian: %(cc1_endian_little); \
mbig |mbig-endian : %(cc1_endian_big); \
mcall-aixdesc | \
%{profile: -p}"
/* Don't put -Y P,<path> for cross compilers. */
-#ifndef CROSS_COMPILE
+#ifndef CROSS_DIRECTORY_STRUCTURE
#define LINK_PATH_SPEC "\
%{!R*:%{L*:-R %*}} \
%{!nostdlib: %{!YP,*: \
mcall-openbsd: %(startfile_openbsd) ; \
: %(startfile_default) }"
-#define STARTFILE_DEFAULT_SPEC ""
+#define STARTFILE_DEFAULT_SPEC "ecrti.o%s crtbegin.o%s"
/* Override svr4.h definition. */
#undef LIB_SPEC
mcall-openbsd: %(lib_openbsd) ; \
: %(lib_default) }"
-#define LIB_DEFAULT_SPEC ""
+#define LIB_DEFAULT_SPEC "-lc"
/* Override svr4.h definition. */
#undef ENDFILE_SPEC
#define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
-#define ENDFILE_DEFAULT_SPEC ""
+#define ENDFILE_DEFAULT_SPEC "crtend.o%s ecrtn.o%s"
/* Motorola ADS support. */
#define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
#define LINK_OS_FREEBSD_SPEC "\
%{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
- %{Wl,*:%*} \
%{v:-V} \
%{assert*} %{R*} %{rpath*} %{defsym*} \
%{shared:-Bshareable %{h*} %{soname*}} \
#define LINK_START_LINUX_SPEC ""
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#if UCLIBC_DEFAULT
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}"
+#else
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}"
+#endif
+#define LINUX_DYNAMIC_LINKER \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
+
#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}}}"
#if defined(HAVE_LD_EH_FRAME_HDR)
# define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
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