/* Definitions for PA_RISC with ELF format
- Copyright (C) 1999 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of GNU CC.
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"
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__hppa__ -Dlinux -Asystem=unix -Asystem=posix -Acpu=hppa -Amachine=hppa -Amachine=bigendian"
+/* A C expression whose value is RTL representing the location of the
+ incoming return address at the beginning of any function, before the
+ prologue. You only need to define this macro if you want to support
+ call frame debugging information like that provided by DWARF 2. */
+#define INCOMING_RETURN_ADDR_RTX (gen_rtx_REG (word_mode, 2))
+#define DWARF_FRAME_RETURN_COLUMN (DWARF_FRAME_REGNUM (2))
+
+/* This macro chooses the encoding of pointers embedded in the exception
+ handling sections. If at all possible, this should be defined such
+ that the exception handling section will not require dynamic relocations,
+ and so may be read-only.
+
+ FIXME: We use DW_EH_PE_aligned to output a PLABEL constructor for
+ global function pointers. */
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
+ (CODE == 2 && GLOBAL ? DW_EH_PE_aligned : DW_EH_PE_absptr)
+
+/* Handle special EH pointer encodings. Absolute, pc-relative, and
+ indirect are handled automatically. Since pc-relative encoding is
+ not possible on the PA and we don't have the infrastructure for
+ data relative encoding, we use aligned plabels for global function
+ pointers. */
+#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
+ do { \
+ if (((ENCODING) & 0x0F) == DW_EH_PE_aligned) \
+ { \
+ fputs (integer_asm_op (SIZE, FALSE), FILE); \
+ fputs ("P%", FILE); \
+ assemble_name (FILE, XSTR (ADDR, 0)); \
+ goto DONE; \
+ } \
+ } while (0)
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define ("__ELF__"); \
+ builtin_define ("__gnu_linux__"); \
+ builtin_define_std ("linux"); \
+ builtin_define_std ("unix"); \
+ builtin_assert ("machine=bigendian"); \
+ builtin_assert ("system=posix"); \
+ builtin_assert ("system=unix"); \
+ } \
+ while (0)
#undef CPP_SPEC
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}\
- %{msnake:-D_PA_RISC1_1}\
- %{mpa-risc-1-1:-D_PA_RISC1_1}"
+#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}"
#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 \
+ "%{shared: -lgcc -lc} \
+ %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
+ %{shared-libgcc: -lgcc} %{profile:-lc_p} %{!profile: -lc}}"
+
+#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}}"
+
+/* glibc's profiling functions don't need gcc to allocate counters. */
+#define NO_PROFILE_COUNTERS 1
+
+/* 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)
+
+/* We want local labels to start with period if made with asm_fprintf. */
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* 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)
+
+/* Use the default. */
+#undef ASM_OUTPUT_LABEL
+
+/* 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. */
+
+/* Use the default. */
+#undef TARGET_ASM_GLOBALIZE_LABEL
+/* Globalizing directive for a label. */
+#define GLOBAL_ASM_OP ".globl "
+
+/* 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 \
+ { \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
+ ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
+ } \
+ while (0)
+
+/* As well as globalizing the label, we need to encode the label
+ to ensure a plabel is generated in an indirect call. */
+
+#undef ASM_OUTPUT_EXTERNAL_LIBCALL
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
+ do \
+ { \
+ if (!FUNCTION_NAME_P (XSTR (FUN, 0))) \
+ hppa_encode_label (FUN); \
+ (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
+ } \
+ while (0)
+
+/* Linux always uses gas. */
+#undef TARGET_GAS
+#define TARGET_GAS 1
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