/* Definitions of target machine for GNU compiler, for DEC Alpha w/ELF.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2007, 2008,
+ 2009, 2010 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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 option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#undef OBJECT_FORMAT_COFF
#undef EXTENDED_COFF
#define OBJECT_FORMAT_ELF
-#define DBX_DEBUGGING_INFO
-#define DWARF2_DEBUGGING_INFO
+/* ??? Move all SDB stuff from alpha.h to osf.h. */
+#undef SDB_DEBUGGING_INFO
+#undef MIPS_DEBUGGING_INFO
+#undef DBX_DEBUGGING_INFO
+
+#define DWARF2_DEBUGGING_INFO 1
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#undef ASM_FINAL_SPEC
+/* alpha/ doesn't use elfos.h for some reason. */
+#define TARGET_OBJFMT_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define ("__ELF__"); \
+ } \
+ while (0)
+
#undef CC1_SPEC
#define CC1_SPEC "%{G*}"
#undef ASM_SPEC
#define ASM_SPEC "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug}"
-#undef LINK_SPEC
-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax} \
- %{O*:-O3} %{!O*:-O1} \
- %{shared:-shared} \
- %{!shared: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker %(elf_dynamic_linker)}} \
- %{static:-static}}"
-
-/* Output at beginning of assembler file. */
-#undef ASM_FILE_START
-#define ASM_FILE_START(FILE) \
-do { \
- if (write_symbols == DBX_DEBUG) \
- { \
- alpha_write_verstamp (FILE); \
- output_file_directive (FILE, main_input_filename); \
- } \
- fprintf (FILE, "\t.set noat\n"); \
- fprintf (FILE, "\t.set noreorder\n"); \
- if (TARGET_EXPLICIT_RELOCS) \
- fprintf (FILE, "\t.set nomacro\n"); \
- if (TARGET_BWX | TARGET_MAX | TARGET_FIX | TARGET_CIX) \
- { \
- fprintf (FILE, "\t.arch %s\n", \
- (TARGET_CPU_EV6 ? "ev6" \
- : TARGET_MAX ? "pca56" : "ev56")); \
- } \
-} while (0)
-
#undef IDENT_ASM_OP
#define IDENT_ASM_OP "\t.ident\t"
-/* Allow #sccs in preprocessor. */
-#define SCCS_DIRECTIVE
-
/* Output #ident as a .ident. */
#undef ASM_OUTPUT_IDENT
#define ASM_OUTPUT_IDENT(FILE, NAME) \
#undef ASM_OUTPUT_SKIP
#define ASM_OUTPUT_SKIP(FILE, SIZE) \
- fprintf (FILE, "%s%u\n", SKIP_ASM_OP, (SIZE))
+ fprintf (FILE, "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n", SKIP_ASM_OP, (SIZE))
/* Output the label which precedes a jumptable. Note that for all svr4
systems where we actually generate jumptables (which is to say every
#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE) \
do { \
ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
+ (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM); \
} while (0)
/* The standard SVR4 assembler seems to require that certain builtin
#undef ASM_OUTPUT_EXTERNAL_LIBCALL
#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
- ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0))
+ (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0))
/* This says how to output assembler code to declare an
uninitialized external linkage data object. Under SVR4,
do { \
fprintf ((FILE), "%s", COMMON_ASM_OP); \
assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
+ fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED ",%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
} while (0)
/* This says how to output assembler code to declare an
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
- if ((SIZE) <= g_switch_value) \
- sbss_section(); \
+ if ((SIZE) <= (unsigned HOST_WIDE_INT) g_switch_value) \
+ switch_to_section (sbss_section); \
else \
- bss_section(); \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
+ switch_to_section (bss_section); \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
if (!flag_inhibit_size_directive) \
- { \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, ",%d\n", (SIZE)); \
- } \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
ASM_OUTPUT_ALIGN ((FILE), exact_log2((ALIGN) / BITS_PER_UNIT)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
- ASM_OUTPUT_SKIP((FILE), (SIZE)); \
+ ASM_OUTPUT_SKIP((FILE), (SIZE) ? (SIZE) : 1); \
} while (0)
-/* This is the pseudo-op used to generate a 64-bit word of data with a
- specific value in some section. */
+/* This says how to output assembler code to declare an
+ uninitialized external linkage data object. */
-#undef INT_ASM_OP
-#define INT_ASM_OP "\t.quad\t"
+#undef ASM_OUTPUT_ALIGNED_BSS
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+do { \
+ ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
+} while (0)
-/* Biggest alignment supported by the object file format of this
- machine. Use this macro to limit the alignment which can be
- specified using the `__attribute__ ((aligned (N)))' construct. If
- not defined, the default value is `BIGGEST_ALIGNMENT'.
+/* The biggest alignment supported by ELF in bits. 32-bit ELF
+ supports section alignment up to (0x80000000 * 8), while
+ 64-bit ELF supports (0x8000000000000000 * 8). If this macro
+ is not defined, the default is the largest alignment supported
+ by 32-bit ELF and representable on a 32-bit host. Use this
+ macro to limit the alignment which can be specified using
+ the `__attribute__ ((aligned (N)))' construct.
This value is really 2^63. Since gcc figures the alignment in bits,
- we could only potentially get to 2^60 on suitible hosts. Due to other
+ we could only potentially get to 2^60 on suitable hosts. Due to other
considerations in varasm, we must restrict this to what fits in an int. */
#undef MAX_OFILE_ALIGNMENT
-#define MAX_OFILE_ALIGNMENT \
- (1 << (HOST_BITS_PER_INT < 64 ? HOST_BITS_PER_INT - 2 : 62))
+#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)
/* This is the pseudo-op used to generate a contiguous sequence of byte
values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
#undef ASCII_DATA_ASM_OP
#define ASCII_DATA_ASM_OP "\t.ascii\t"
-/* Support const sections and the ctors and dtors sections for g++.
- Note that there appears to be two different ways to support const
- sections at the moment. You can either #define the symbol
- READONLY_DATA_SECTION (giving it some code which switches to the
- readonly data section) or else you can #define the symbols
- EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
- SELECT_RTX_SECTION. We do both here just to be on the safe side. */
-
-#undef USE_CONST_SECTION
-#define USE_CONST_SECTION 1
-
-#undef CONST_SECTION_ASM_OP
-#define CONST_SECTION_ASM_OP "\t.section\t.rodata"
-
+#undef READONLY_DATA_SECTION_ASM_OP
+#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata"
#undef BSS_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP "\t.section\t.bss"
#undef SBSS_SECTION_ASM_OP
#endif
-/* A default list of other sections which we might be "in" at any given
- time. For targets that use additional sections (e.g. .tdesc) you
- should override this definition in the target-specific file which
- includes this file. */
-
-#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_const, in_sbss, in_sdata
-
-/* A default list of extra section function definitions. For targets
- that use additional sections (e.g. .tdesc) you should override this
- definition in the target-specific file which includes this file. */
-
-#undef EXTRA_SECTION_FUNCTIONS
-#define EXTRA_SECTION_FUNCTIONS \
- CONST_SECTION_FUNCTION \
- SECTION_FUNCTION_TEMPLATE(sbss_section, in_sbss, SBSS_SECTION_ASM_OP) \
- SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP)
-
-extern void sbss_section PARAMS ((void));
-extern void sdata_section PARAMS ((void));
-
-#undef READONLY_DATA_SECTION
-#define READONLY_DATA_SECTION() const_section ()
-
-#undef CONST_SECTION_FUNCTION
-#define CONST_SECTION_FUNCTION \
-void \
-const_section () \
-{ \
- if (!USE_CONST_SECTION) \
- text_section(); \
- else if (in_section != in_const) \
- { \
- fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
- in_section = in_const; \
- } \
-}
-
-#undef SECTION_FUNCTION_TEMPLATE
-#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \
-void FN () \
-{ \
- if (in_section != ENUM) \
- { \
- fprintf (asm_out_file, "%s\n", OP); \
- in_section = ENUM; \
- } \
-}
-
/* Switch into a generic section. */
#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
-
-/* A C statement or statements to switch to the appropriate
- section for output of DECL. DECL is either a `VAR_DECL' node
- or a constant of some sort. RELOC indicates whether forming
- the initial value of DECL requires link-time relocations.
-
- Set SECNUM to:
- 0 .text
- 1 .rodata
- 2 .data
- 3 .sdata
- 4 .bss
- 5 .sbss
-*/
-
-#define DO_SELECT_SECTION(SECNUM, DECL, RELOC) \
- do \
- { \
- SECNUM = 1; \
- if (TREE_CODE (DECL) == FUNCTION_DECL) \
- SECNUM = 0; \
- else if (TREE_CODE (DECL) == STRING_CST) \
- { \
- if (flag_writable_strings) \
- SECNUM = 2; \
- else \
- SECNUM = 0x101; \
- } \
- else if (TREE_CODE (DECL) == VAR_DECL) \
- { \
- if (DECL_INITIAL (DECL) == NULL \
- || DECL_INITIAL (DECL) == error_mark_node) \
- SECNUM = 4; \
- else if ((flag_pic && RELOC) \
- || ! TREE_READONLY (DECL) \
- || TREE_SIDE_EFFECTS (DECL) \
- || ! TREE_CONSTANT (DECL_INITIAL (DECL))) \
- SECNUM = 2; \
- else if (flag_merge_constants >= 2) \
- { \
- /* C and C++ don't allow different variables to \
- share the same location. -fmerge-all-constants\
- allows even that (at the expense of not \
- conforming). */ \
- if (TREE_CODE (DECL_INITIAL (DECL)) == STRING_CST)\
- SECNUM = 0x201; \
- else \
- SECNUM = 0x301; \
- } \
- } \
- else if (TREE_CODE (DECL) == CONSTRUCTOR) \
- { \
- if ((flag_pic && RELOC) \
- || ! TREE_READONLY (DECL) \
- || TREE_SIDE_EFFECTS (DECL) \
- || ! TREE_CONSTANT (DECL)) \
- SECNUM = 2; \
- } \
- \
- /* Select small data sections based on size. */ \
- if ((SECNUM & 0xff) >= 2) \
- { \
- int size = int_size_in_bytes (TREE_TYPE (DECL)); \
- if (size >= 0 && size <= g_switch_value) \
- SECNUM += 1; \
- } \
- } \
- while (0)
-
-#undef SELECT_SECTION
-#define SELECT_SECTION(DECL, RELOC, ALIGN) \
- do \
- { \
- typedef void (*sec_fn) PARAMS ((void)); \
- static sec_fn const sec_functions[6] = \
- { \
- text_section, \
- const_section, \
- data_section, \
- sdata_section, \
- bss_section, \
- sbss_section \
- }; \
- \
- int sec; \
- \
- DO_SELECT_SECTION (sec, DECL, RELOC); \
- \
- switch (sec) \
- { \
- case 0x101: \
- mergeable_string_section (DECL, ALIGN, 0); \
- break; \
- case 0x201: \
- mergeable_string_section (DECL_INITIAL (DECL),\
- ALIGN, 0); \
- break; \
- case 0x301: \
- mergeable_constant_section (DECL_MODE (DECL), \
- ALIGN, 0); \
- break; \
- default: \
- (*sec_functions[sec]) (); \
- break; \
- } \
- } \
- while (0)
+#define TARGET_ASM_SELECT_SECTION default_elf_select_section
#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
-#undef UNIQUE_SECTION
-#define UNIQUE_SECTION(DECL, RELOC) \
- do \
- { \
- static const char * const prefixes[6][2] = \
- { \
- { ".text.", ".gnu.linkonce.t." }, \
- { ".rodata.", ".gnu.linkonce.r." }, \
- { ".data.", ".gnu.linkonce.d." }, \
- { ".sdata.", ".gnu.linkonce.s." }, \
- { ".bss.", ".gnu.linkonce.b." }, \
- { ".sbss.", ".gnu.linkonce.sb." } \
- }; \
- \
- int nlen, plen, sec; \
- const char *name, *prefix; \
- char *string; \
- \
- DO_SELECT_SECTION (sec, DECL, RELOC); \
- \
- name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
- STRIP_NAME_ENCODING (name, name); \
- nlen = strlen (name); \
- \
- prefix = prefixes[sec & 0xff][DECL_ONE_ONLY(DECL)]; \
- plen = strlen (prefix); \
- \
- string = alloca (nlen + plen + 1); \
- \
- memcpy (string, prefix, plen); \
- memcpy (string + plen, name, nlen + 1); \
- \
- DECL_SECTION_NAME (DECL) = build_string (nlen + plen, string); \
- } \
- while (0)
-
-/* A C statement or statements to switch to the appropriate
- section for output of RTX in mode MODE. RTX is some kind
- of constant in RTL. The argument MODE is redundant except
- in the case of a `const_int' rtx. Currently, these always
- go into the const section. */
-
-#undef SELECT_RTX_SECTION
-#define SELECT_RTX_SECTION(MODE, RTX, ALIGN) \
- mergeable_constant_section((MODE), (ALIGN), 0)
-
/* 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
/* This is how we tell the assembler that two symbols have the same value. */
#undef ASM_OUTPUT_DEF
-#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
- do { assemble_name(FILE, NAME1); \
- fputs(" = ", FILE); \
- assemble_name(FILE, NAME2); \
- fputc('\n', FILE); } while (0)
+#define ASM_OUTPUT_DEF(FILE, ALIAS, NAME) \
+ do { \
+ assemble_name(FILE, ALIAS); \
+ fputs(" = ", FILE); \
+ assemble_name(FILE, NAME); \
+ fputc('\n', FILE); \
+ } while (0)
+
+#undef ASM_OUTPUT_DEF_FROM_DECLS
+#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
+ do { \
+ const char *alias = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
+ const char *name = IDENTIFIER_POINTER (TARGET); \
+ if (TREE_CODE (DECL) == FUNCTION_DECL) \
+ { \
+ fputc ('$', FILE); \
+ assemble_name (FILE, alias); \
+ fputs ("..ng = $", FILE); \
+ assemble_name (FILE, name); \
+ fputs ("..ng\n", FILE); \
+ } \
+ assemble_name(FILE, alias); \
+ fputs(" = ", FILE); \
+ assemble_name(FILE, name); \
+ fputc('\n', FILE); \
+ } while (0)
/* The following macro defines the format used to output the second
operand of the .type assembler directive. Different svr4 assemblers
/* Write the extra assembler code needed to declare an object properly. */
+#ifdef HAVE_GAS_GNU_UNIQUE_OBJECT
+#define USE_GNU_UNIQUE_OBJECT 1
+#else
+#define USE_GNU_UNIQUE_OBJECT 0
+#endif
+
#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- HOST_WIDE_INT size; \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive \
- && DECL_SIZE (DECL) \
- && (size = int_size_in_bytes (TREE_TYPE (DECL))) > 0) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fputc (',', FILE); \
- fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, size); \
- fputc ('\n', FILE); \
- } \
- ASM_OUTPUT_LABEL(FILE, NAME); \
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
+ do { \
+ HOST_WIDE_INT size; \
+ \
+ /* For template static data member instantiations or \
+ inline fn local statics and their guard variables, use \
+ gnu_unique_object so that they will be combined even under \
+ RTLD_LOCAL. Don't use gnu_unique_object for typeinfo, \
+ vtables and other read-only artificial decls. */ \
+ if (USE_GNU_UNIQUE_OBJECT && DECL_ONE_ONLY (DECL) \
+ && (!DECL_ARTIFICIAL (DECL) || !TREE_READONLY (DECL))) \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "gnu_unique_object"); \
+ else \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
+ \
+ size_directive_output = 0; \
+ if (!flag_inhibit_size_directive \
+ && (DECL) && DECL_SIZE (DECL)) \
+ { \
+ size_directive_output = 1; \
+ size = int_size_in_bytes (TREE_TYPE (DECL)); \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
+ } \
+ \
+ ASM_OUTPUT_LABEL (FILE, NAME); \
} while (0)
/* Output the size directive for a decl in rest_of_decl_compilation
&& (size = int_size_in_bytes (TREE_TYPE (DECL))) > 0) \
{ \
size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, name); \
- fputc (',', FILE); \
- fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, size); \
- fputc ('\n', FILE); \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
} \
} while (0)
the i386) don't know about that. Also, we don't use \v
since some versions of gas, such as 2.2 did not accept it. */
-#undef ESCAPES
-#define ESCAPES \
+#undef ELF_ASCII_ESCAPES
+#define ELF_ASCII_ESCAPES \
"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
If your target assembler doesn't support the .string directive, you
should define this to zero. */
-#undef STRING_LIMIT
-#define STRING_LIMIT ((unsigned) 256)
+#undef ELF_STRING_LIMIT
+#define ELF_STRING_LIMIT ((unsigned) 256)
+
#undef STRING_ASM_OP
#define STRING_ASM_OP "\t.string\t"
/* Provide a STARTFILE_SPEC appropriate for ELF. Here we add the
(even more) magical crtbegin.o file which provides part of the
support for getting C++ file-scope static object constructed
- before entering `main'.
+ before entering `main'. */
- Don't bother seeing crtstuff.c -- there is absolutely no hope
- of getting that file to understand multiple GPs. We provide a
- hand-coded assembly version. */
-
#undef STARTFILE_SPEC
+#ifdef HAVE_LD_PIE
#define STARTFILE_SPEC \
- "%{!shared: \
- %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
- crti.o%s %{shared:crtbeginS.o%s}%{!shared:crtbegin.o%s}"
+ "%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
+ crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+#else
+#define STARTFILE_SPEC \
+ "%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
+ crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+#endif
/* Provide a ENDFILE_SPEC appropriate for ELF. Here we tack on the
magical crtend.o file which provides part of the support for
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
- %{shared:crtendS.o%s}%{!shared:crtend.o%s} crtn.o%s"
-
-/* We support #pragma. */
-#define HANDLE_SYSV_PRAGMA
-
-/* Undo the auto-alignment stuff from alpha.h. ELF has unaligned data
- pseudos natively. */
-#undef UNALIGNED_SHORT_ASM_OP
-#undef UNALIGNED_INT_ASM_OP
-#undef UNALIGNED_DOUBLE_INT_ASM_OP
+ "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
+ %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
/* Select a format to encode pointers in exception handling data. CODE
is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
alpha_this_gpdisp_sequence_number = 0)
extern int alpha_this_literal_sequence_number;
extern int alpha_this_gpdisp_sequence_number;
+
+/* Since the bits of the _init and _fini function is spread across
+ many object files, each potentially with its own GP, we must assume
+ we need to load our GP. Further, the .init/.fini section can
+ easily be more than 4MB away from the function to call so we can't
+ use bsr. */
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
+ asm (SECTION_OP "\n" \
+" br $29,1f\n" \
+"1: ldgp $29,0($29)\n" \
+" unop\n" \
+" jsr $26," USER_LABEL_PREFIX #FUNC "\n" \
+" .align 3\n" \
+" .previous");
+
+/* If we have the capability create headers for efficient EH lookup.
+ As of Jan 2002, only glibc 2.2.4 can actually make use of this, but
+ I imagine that other systems will catch up. In the meantime, it
+ doesn't harm to make sure that the data exists to be used later. */
+#if defined(HAVE_LD_EH_FRAME_HDR)
+#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
+#endif
+
+/* A C statement (sans semicolon) to output to the stdio stream STREAM
+ any text necessary for declaring the name of an external symbol
+ named NAME which is referenced in this compilation but not defined.
+ It is needed to properly support non-default visibility. */
+
+#ifndef ASM_OUTPUT_EXTERNAL
+#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
+ default_elf_asm_output_external (FILE, DECL, NAME)
+#endif
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