#define MAX_OFILE_ALIGNMENT (32768 * 8)
#endif
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC "crtend.o%s"
-
-#undef STARTFILE_SPEC
-#define STARTFILE_SPEC "%{!shared: \
- %{!symbolic: \
- %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\
- crtbegin.o%s"
-
/* Use periods rather than dollar signs in special g++ assembler names. */
#define NO_DOLLAR_IN_LABEL
#define DWARF2_DEBUGGING_INFO 1
#endif
-/* Also allow them to support STABS debugging. */
-
-#include "dbxelf.h"
-
-/* The GNU tools operate better with stabs. Since we don't have
- any native tools to be compatible with, default to stabs. */
+/* The GNU tools operate better with dwarf2, and it is required by some
+ psABI's. Since we don't have any native tools to be compatible with,
+ default to dwarf2. */
#ifndef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#endif
/* All SVR4 targets use the ELF object file format. */
#define IDENT_ASM_OP "\t.ident\t"
-#undef ASM_BYTE_OP
-#define ASM_BYTE_OP "\t.byte\t"
-
#undef SET_ASM_OP
#define SET_ASM_OP "\t.set\t"
with a period is not put into the linker symbol table by the assembler. */
#undef ASM_OUTPUT_INTERNAL_LABEL
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
- do \
- { \
- fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \
- } \
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
+ do \
+ { \
+ fprintf (FILE, ".%s%u:\n", PREFIX, (unsigned) (NUM)); \
+ } \
while (0)
/* This is how to store into the string LABEL
make sure that the location counter for the .rodata section gets pro-
perly re-aligned prior to the actual beginning of the jump table. */
+#undef ALIGN_ASM_OP
#define ALIGN_ASM_OP "\t.align\t"
#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
} \
while (0)
-/* This is the pseudo-op used to generate a reference to a specific
- symbol in some section. It is only used in machine-specific
- configuration files. This is the same for all known svr4
- assemblers, except those in targets that don't use 32-bit pointers.
- Those should override INT_ASM_OP. Yes, the name of the macro is
- misleading. */
-
-#ifndef INT_ASM_OP
-#define INT_ASM_OP "\t.long\t"
-#endif
-
/* This is the pseudo-op used to generate a contiguous sequence of byte
values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
const char *name; \
char *string; \
const char *prefix; \
- static const char *prefixes[4][2] = \
+ static const char *const prefixes[4][2] = \
{ \
{ ".text.", ".gnu.linkonce.t." }, \
{ ".rodata.", ".gnu.linkonce.r." }, \
/* 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. */
+ the initial value of DECL requires link-time relocations.
+
+ To optimize loading of shared programs, define following subsections
+ of data section by attaching:
+
+ .rel
+ Section with this string in name contains data that do have
+ relocations, so they get grouped together and dynamic linker
+ will visit fewer pages in memory.
+ .ro
+ Marks data read only otherwise. This is useful with prelinking
+ as most of relocations won't be dynamically linked and thus
+ stay read only.
+ .local
+ Marks data containing relocations only to local objects. These
+ relocation will get fully resolved by prelinking.
+ */
#undef SELECT_SECTION
#define SELECT_SECTION(DECL, RELOC, ALIGN) \
} \
else if (TREE_CODE (DECL) == VAR_DECL) \
{ \
- if ((flag_pic && RELOC) \
- || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
+ if (!TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
|| !DECL_INITIAL (DECL) \
|| (DECL_INITIAL (DECL) != error_mark_node \
&& !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
- data_section (); \
+ { \
+ if (flag_pic && ((RELOC) & 2)) \
+ named_section (NULL_TREE, ".data.rel", RELOC); \
+ else if (flag_pic && (RELOC)) \
+ named_section (NULL_TREE, ".data.rel.local", RELOC);\
+ else \
+ data_section (); \
+ } \
+ else if (flag_pic && ((RELOC) & 2)) \
+ named_section (NULL_TREE, ".data.rel.ro", RELOC); \
+ else if (flag_pic && (RELOC)) \
+ named_section (NULL_TREE, ".data.rel.ro.local", RELOC); \
else if (flag_merge_constants < 2) \
/* C and C++ don't allow different variables to share \
the same location. -fmerge-all-constants allows \
else if (TREE_CODE (DECL) == CONSTRUCTOR) \
{ \
if ((flag_pic && RELOC) \
- || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
+ || TREE_SIDE_EFFECTS (DECL) \
|| ! TREE_CONSTANT (DECL)) \
data_section (); \
else \
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