diff options
Diffstat (limited to 'gcc/config/pa/pa-linux.h')
| -rw-r--r-- | gcc/config/pa/pa-linux.h | 185 |
1 files changed, 154 insertions, 31 deletions
diff --git a/gcc/config/pa/pa-linux.h b/gcc/config/pa/pa-linux.h index 6ef2b3f567a..baa1cf5b4a5 100644 --- a/gcc/config/pa/pa-linux.h +++ b/gcc/config/pa/pa-linux.h @@ -1,5 +1,5 @@ /* Definitions for PA_RISC with ELF format - Copyright (C) 1999 Free Software Foundation, Inc. + Copyright 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of GNU CC. @@ -18,38 +18,161 @@ along with GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* FIXME - this doesn't seem to be used anywhere */ -#define LINUX_DEFAULT_ELF - -#undef SIZE_TYPE -#define SIZE_TYPE "unsigned int" - -#undef PTRDIFF_TYPE -#define PTRDIFF_TYPE "int" +/* Use DWARF2 debugging info and unwind. */ +#undef PREFERRED_DEBUGGING_TYPE +#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG +#define DWARF2_ASM_LINE_DEBUG_INFO 1 +#define DWARF2_UNWIND_INFO 1 #undef CPP_PREDEFINES #define CPP_PREDEFINES "-D__ELF__ -Dunix -D__hppa__ -Dlinux -Asystem=unix -Asystem=posix -Acpu=hppa -Amachine=hppa -Amachine=bigendian" -#undef CPP_SPEC -#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}\ - %{msnake:-D_PA_RISC1_1}\ - %{mpa-risc-1-1:-D_PA_RISC1_1}" - #undef LIB_SPEC -#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} -lmilli" - -/* How to renumber registers for dbx and gdb. - - It is entirely possible linux will use a different numbering scheme. - Until we know for sure, it's the same as hpux, osf & bsd, but we're - ready if it needs to be different. - - Registers 0 - 31 remain unchanged. - - Registers 32 - 87 are mapped to 72 - 127 - - Register 88 is mapped to 32. */ - -#define DBX_REGISTER_NUMBER(REGNO) \ - ((REGNO) <= 31 ? (REGNO) : \ - ((REGNO) > 31 && (REGNO) <= 87 ? (REGNO) + 40 : 32)) +#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" + +#undef ASM_SPEC +#define ASM_SPEC \ + "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}" + +/* Define this for shared library support because it isn't in the main + linux.h file. */ + +#undef LINK_SPEC +#define LINK_SPEC "\ + %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \ + %{static:-static}}" + +/* Sibcalls, stubs, and elf sections don't play well. */ +#undef FUNCTION_OK_FOR_SIBCALL +#define FUNCTION_OK_FOR_SIBCALL(x) 0 + +/* glibc's profiling functions don't need gcc to allocate counters. */ +#define NO_PROFILE_COUNTERS 1 + +/* Put plabels into the data section so we can relocate them. */ +#undef SELECT_RTX_SECTION +#define SELECT_RTX_SECTION(MODE,RTX) \ + if (flag_pic && function_label_operand (RTX, MODE)) \ + data_section (); \ + else \ + readonly_data_section (); + +/* A C expression whose value is RTL representing the location of the + incoming return address at the beginning of any function, before the + prologue. */ +#define INCOMING_RETURN_ADDR_RTX (gen_rtx_REG (word_mode, 2)) +#define DWARF_FRAME_RETURN_COLUMN (DWARF_FRAME_REGNUM (2)) + +/* Define the strings used for the special svr4 .type and .size directives. + These strings generally do not vary from one system running svr4 to + another, but if a given system (e.g. m88k running svr) needs to use + different pseudo-op names for these, they may be overridden in the + file which includes this one. */ + +#undef STRING_ASM_OP +#define STRING_ASM_OP ".stringz" + +#define TEXT_SECTION_ASM_OP "\t.text" +#define DATA_SECTION_ASM_OP "\t.data" +#define BSS_SECTION_ASM_OP "\t.section\t.bss" + +/* Output at beginning of assembler file. We override the definition + from <linux.h> so that we can get the proper .LEVEL directive. */ +#undef ASM_FILE_START +#define ASM_FILE_START(FILE) \ + do \ + { \ + if (write_symbols != NO_DEBUG) \ + { \ + output_file_directive (FILE, main_input_filename); \ + fputs ("\t.version\t\"01.01\"\n", FILE); \ + } \ + if (TARGET_64BIT) \ + fputs("\t.LEVEL 2.0w\n", FILE); \ + else if (TARGET_PA_20) \ + fputs("\t.LEVEL 2.0\n", FILE); \ + else if (TARGET_PA_11) \ + fputs("\t.LEVEL 1.1\n", FILE); \ + else \ + fputs("\t.LEVEL 1.0\n", FILE); \ + if (profile_flag) \ + fputs ("\t.IMPORT _mcount, CODE\n", FILE); \ + } \ + while (0) + +/* Output a definition */ +#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ + do \ + { \ + fprintf ((FILE), "\t%s\t", SET_ASM_OP); \ + assemble_name (FILE, LABEL1); \ + fprintf (FILE, ","); \ + assemble_name (FILE, LABEL2); \ + fprintf (FILE, "\n"); \ + } \ + while (0) + +/* Define these to generate the Linux/ELF/SysV style of internal + labels all the time - i.e. to be compatible with + ASM_GENERATE_INTERNAL_LABEL in <elfos.h>. Compare these with the + ones in pa.h and note the lack of dollar signs in these. FIXME: + shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */ + +#undef ASM_OUTPUT_ADDR_VEC_ELT +#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ + if (TARGET_BIG_SWITCH) \ + fprintf (FILE, "\tstw %%r1,-16(%%r30)\n\tldil LR'.L%d,%%r1\n\tbe RR'.L%d(%%sr4,%%r1)\n\tldw -16(%%r30),%%r1\n", VALUE, VALUE); \ + else \ + fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE) + +#undef ASM_OUTPUT_ADDR_DIFF_ELT +#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ + if (TARGET_BIG_SWITCH) \ + fprintf (FILE, "\tstw %%r1,-16(%%r30)\n\tldw T'.L%d(%%r19),%%r1\n\tbv %%r0(%%r1)\n\tldw -16(%%r30),%%r1\n", VALUE); \ + else \ + fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE) + +/* This is how to output the definition of a user-level label named NAME, + such as the label on a static function or variable NAME. */ + +#undef ASM_OUTPUT_LABEL +#define ASM_OUTPUT_LABEL(FILE, NAME) \ + do \ + { \ + assemble_name (FILE, NAME); \ + fputs (":\n", FILE); \ + } \ + while (0) + +/* NOTE: ASM_OUTPUT_INTERNAL_LABEL() is defined for us by elfos.h, and + does what we want (i.e. uses colons). It must be compatible with + ASM_GENERATE_INTERNAL_LABEL(), so do not define it here. */ + +#undef ASM_GLOBALIZE_LABEL +#define ASM_GLOBALIZE_LABEL(FILE, NAME) \ + (fputs (".globl ", FILE), assemble_name (FILE, NAME), fputs ("\n", FILE)) + +/* FIXME: Hacked from the <elfos.h> one so that we avoid multiple + labels in a function declaration (since pa.c seems determined to do + it differently) */ + +#undef ASM_DECLARE_FUNCTION_NAME +#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ + do \ + { \ + fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ + assemble_name (FILE, NAME); \ + putc (',', FILE); \ + fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ + putc ('\n', FILE); \ + ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ + } \ + while (0) + +/* Linux always uses gas. */ +#undef TARGET_GAS +#define TARGET_GAS 1 |