ac8ab9fe50
* config.gcc: Don't include mips/abi64.h in $tm_file. * hard-reg-set.h (call_really_used_regs): Declare. * config/mips/abi64.h: Remove file. * config/mips/linux.h, * config/mips/iris6.h: Don't include it. * config/mips/mips-protos.h (mips_conditional_register_usage): Declare. * config/mips/mips.h (CONDITIONAL_REGISTER_USAGE): Use it. (REG_PARM_STACK_SPACE, STACK_BOUNDARY, STRICT_ARGUMENT_NAMING, FUNCTION_ARG_PASS_BY_REFERENCE, FUNCTION_ARG_PADDING, FUNCTION_ARG_CALLEE_COPIES, MUST_PASS_IN_STACK, MIPS_STACK_ALIGN): Bring across definitions from abi64.h. (GP_ARG_LAST, FP_ARG_LAST): Use MAX_ARGS_IN_REGISTERS. (BIGGEST_MAX_ARGS_IN_REGISTERS): New. (struct mips_args): Use it. * config/mips/mips.c (mips_conditional_register_usage): Define. From-SVN: r55986
254 lines
8.4 KiB
C
254 lines
8.4 KiB
C
/* Definitions for MIPS running Linux-based GNU systems with ELF format.
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Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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/* If defined, a C expression whose value is a string containing the
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assembler operation to identify the following data as
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uninitialized global data. If not defined, and neither
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`ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
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uninitialized global data will be output in the data section if
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`-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
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used. */
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#define BSS_SECTION_ASM_OP "\t.section\t.bss"
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#define SBSS_SECTION_ASM_OP "\t.section .sbss"
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/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
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separate, explicit argument. If you define this macro, it is used
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in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
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handling the required alignment of the variable. The alignment is
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specified as the number of bits.
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Try to use function `asm_output_aligned_bss' defined in file
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`varasm.c' when defining this macro. */
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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do { \
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ASM_GLOBALIZE_LABEL (FILE, NAME); \
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if (SIZE > 0 && SIZE <= mips_section_threshold) \
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sbss_section (); \
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else \
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bss_section (); \
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ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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last_assemble_variable_decl = DECL; \
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ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
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ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \
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} while (0)
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/* These macros generate the special .type and .size directives which
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are used to set the corresponding fields of the linker symbol table
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entries in an ELF object file under SVR4. These macros also output
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the starting labels for the relevant functions/objects. */
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/* Write the extra assembler code needed to declare an object properly. */
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#undef ASM_DECLARE_OBJECT_NAME
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#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
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do { \
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HOST_WIDE_INT size; \
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ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
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size_directive_output = 0; \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
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{ \
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size_directive_output = 1; \
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size = int_size_in_bytes (TREE_TYPE (DECL)); \
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ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
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} \
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mips_declare_object (FILE, NAME, "", ":\n", 0); \
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} while (0)
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#define TARGET_ASM_UNIQUE_SECTION mips_unique_section
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/* A list of other sections which the compiler might be "in" at any
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given time. */
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_sdata, in_sbss
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP) \
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SECTION_FUNCTION_TEMPLATE(sbss_section, in_sbss, SBSS_SECTION_ASM_OP)
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#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \
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void FN () \
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{ \
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if (in_section != ENUM) \
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{ \
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fprintf (asm_out_file, "%s\n", OP); \
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in_section = ENUM; \
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} \
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}
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#undef TARGET_VERSION
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#if TARGET_ENDIAN_DEFAULT == 0
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#define TARGET_VERSION fprintf (stderr, " (MIPSel GNU/Linux with ELF)");
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#else
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#define TARGET_VERSION fprintf (stderr, " (MIPS GNU/Linux with ELF)");
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#endif
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#undef MD_EXEC_PREFIX
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#undef MD_STARTFILE_PREFIX
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/* Required to keep collect2.c happy */
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#undef OBJECT_FORMAT_COFF
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/* If we don't set MASK_ABICALLS, we can't default to PIC. */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT (MASK_ABICALLS|MASK_GAS)
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#define TARGET_OS_CPP_BUILTINS() \
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do { \
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builtin_define ("__gnu_linux__"); \
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builtin_define ("__ELF__"); \
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builtin_define ("__PIC__"); \
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builtin_define ("__pic__"); \
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builtin_define_std ("unix"); \
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builtin_define_std ("linux"); \
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builtin_assert ("system=linux"); \
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/* The GNU C++ standard library requires this. */ \
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if (c_language = clk_cplusplus) \
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builtin_define ("_GNU_SOURCE"); \
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\
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if (mips_abi == ABI_N32) \
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{ \
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builtin_define ("_ABIN32=2"); \
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builtin_define ("_MIPS_SIM=_ABIN32"); \
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builtin_define ("_MIPS_SZLONG=32"); \
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builtin_define ("_MIPS_SZPTR=32"); \
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} \
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else if (mips_abi == ABI_64) \
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{ \
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builtin_define ("_ABI64=3"); \
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builtin_define ("_MIPS_SIM=_ABI64"); \
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builtin_define ("_MIPS_SZLONG=64"); \
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builtin_define ("_MIPS_SZPTR=64"); \
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} \
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else \
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{ \
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builtin_define ("_MIPS_SIM=_MIPS_SIM_ABI32"); \
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builtin_define ("_MIPS_SZLONG=32"); \
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builtin_define ("_MIPS_SZPTR=32"); \
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} \
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if (TARGET_FLOAT64) \
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builtin_define ("_MIPS_FPSET=32"); \
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else \
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builtin_define ("_MIPS_FPSET=16"); \
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\
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if (TARGET_INT64) \
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builtin_define ("_MIPS_SZINT=64"); \
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else \
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builtin_define ("_MIPS_SZINT=32"); \
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} while (0)
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#undef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC "\
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%{fno-PIC:-U__PIC__ -U__pic__} %{fno-pic:-U__PIC__ -U__pic__} \
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%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
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%{pthread:-D_REENTRANT}"
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/* From iris5.h */
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/* -G is incompatible with -KPIC which is the default, so only allow objects
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in the small data section if the user explicitly asks for it. */
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#undef MIPS_DEFAULT_GVALUE
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#define MIPS_DEFAULT_GVALUE 0
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/* Borrowed from sparc/linux.h */
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#undef LINK_SPEC
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#define LINK_SPEC \
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"%(endian_spec) \
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%{shared:-shared} \
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%{!shared: \
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%{!ibcs: \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
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%{static:-static}}}"
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#undef SUBTARGET_ASM_SPEC
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#define SUBTARGET_ASM_SPEC "\
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%{mabi=64: -64} \
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%{!fno-PIC:%{!fno-pic:-KPIC}} \
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%{fno-PIC:-non_shared} %{fno-pic:-non_shared}"
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#undef SUBTARGET_ASM_DEBUGGING_SPEC
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#define SUBTARGET_ASM_DEBUGGING_SPEC "-g0"
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/* The MIPS assembler has different syntax for .set. We set it to
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.dummy to trap any errors. */
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#undef SET_ASM_OP
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#define SET_ASM_OP "\t.dummy\t"
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#undef ASM_OUTPUT_DEF
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#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
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do { \
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fputc ( '\t', FILE); \
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assemble_name (FILE, LABEL1); \
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fputs ( " = ", FILE); \
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assemble_name (FILE, LABEL2); \
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fputc ( '\n', FILE); \
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} while (0)
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#undef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
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do { \
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if (!flag_inhibit_size_directive) \
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{ \
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fputs ("\t.ent\t", STREAM); \
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assemble_name (STREAM, NAME); \
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putc ('\n', STREAM); \
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} \
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ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, NAME, "function"); \
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assemble_name (STREAM, NAME); \
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fputs (":\n", STREAM); \
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} while (0)
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#undef ASM_DECLARE_FUNCTION_SIZE
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#define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) \
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do { \
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if (!flag_inhibit_size_directive) \
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{ \
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fputs ("\t.end\t", STREAM); \
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assemble_name (STREAM, NAME); \
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putc ('\n', STREAM); \
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} \
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} while (0)
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/* Tell function_prologue in mips.c that we have already output the .ent/.end
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pseudo-ops. */
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#define FUNCTION_NAME_ALREADY_DECLARED
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#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
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(flag_pic \
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? ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4\
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: DW_EH_PE_absptr)
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/* The glibc _mcount stub will save $v0 for us. Don't mess with saving
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it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the
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presence of $gp-relative calls. */
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#undef ASM_OUTPUT_REG_PUSH
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#undef ASM_OUTPUT_REG_POP
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/* The current Linux binutils uses MIPS_STABS_ELF and doesn't support
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COFF. */
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#undef SDB_DEBUGGING_INFO
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