+++ /dev/null
-2006-12-07 H.J. Lu <hongjiu.lu@intel.com>
-
- Backport from mainline:
- 2006-12-11 H.J. Lu <hongjiu.lu@intel.com>
- PR middle-end/17982
- PR middle-end/20218
- * cgraphunit.c (cgraph_optimize): Remove call to
- process_pending_assemble_externals.
-
- * config/elfos.h (ASM_OUTPUT_EXTERNAL): New.
-
- * config/ia64/hpux.h (TARGET_ASM_FILE_END): Removed.
-
- * config/ia64/ia64.c (ia64_asm_output_external): Rewritten.
- (ia64_hpux_add_extern_decl): Removed.
- (ia64_hpux_file_end): Likewise.
- (extern_func_list): Likewise.
- (extern_func_head): Likewise.
-
- * output.h (assemble_external): Update comments.
- (default_elf_asm_output_external): New.
- (maybe_assemble_visibility): New.
-
- * toplev.c (compile_file): Update comment.
-
- * varasm.c (assemble_external): Always put it on
- pending_assemble_externals.
- (maybe_assemble_visibility): Make it extern and return int.
- (default_elf_asm_output_external): New.
-
---- gcc/cgraphunit.c.global 2006-12-07 05:45:18.000000000 -0800
-+++ gcc/cgraphunit.c 2006-12-07 05:47:22.000000000 -0800
-@@ -1536,8 +1536,6 @@ cgraph_optimize (void)
- return;
- }
-
-- process_pending_assemble_externals ();
--
- /* Frontend may output common variables after the unit has been finalized.
- It is safe to deal with them here as they are always zero initialized. */
- cgraph_varpool_analyze_pending_decls ();
---- gcc/config/elfos.h.global 2006-11-30 12:45:20.000000000 -0800
-+++ gcc/config/elfos.h 2006-12-07 05:47:22.000000000 -0800
-@@ -499,3 +499,13 @@ Boston, MA 02110-1301, USA. */
- fprintf ((FILE), "\"\n"); \
- } \
- while (0)
-+
-+/* 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 whch 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
---- gcc/config/ia64/hpux.h.global 2006-10-29 17:03:12.000000000 -0800
-+++ gcc/config/ia64/hpux.h 2006-12-07 05:47:22.000000000 -0800
-@@ -144,10 +144,6 @@ do { \
- definitions, so do not use them in gthr-posix.h. */
- #define GTHREAD_USE_WEAK 0
-
--/* Put out the needed function declarations at the end. */
--
--#define TARGET_ASM_FILE_END ia64_hpux_file_end
--
- #undef CTORS_SECTION_ASM_OP
- #define CTORS_SECTION_ASM_OP "\t.section\t.init_array,\t\"aw\",\"init_array\""
-
---- gcc/config/ia64/ia64.c.global 2006-12-07 05:45:17.000000000 -0800
-+++ gcc/config/ia64/ia64.c 2006-12-07 05:47:22.000000000 -0800
-@@ -255,10 +255,6 @@ static section *ia64_rwreloc_select_rtx_
- unsigned HOST_WIDE_INT)
- ATTRIBUTE_UNUSED;
- static unsigned int ia64_section_type_flags (tree, const char *, int);
--static void ia64_hpux_add_extern_decl (tree decl)
-- ATTRIBUTE_UNUSED;
--static void ia64_hpux_file_end (void)
-- ATTRIBUTE_UNUSED;
- static void ia64_init_libfuncs (void)
- ATTRIBUTE_UNUSED;
- static void ia64_hpux_init_libfuncs (void)
-@@ -5021,49 +5017,6 @@ ia64_secondary_reload_class (enum reg_cl
- }
-
- \f
--/* Emit text to declare externally defined variables and functions, because
-- the Intel assembler does not support undefined externals. */
--
--void
--ia64_asm_output_external (FILE *file, tree decl, const char *name)
--{
-- int save_referenced;
--
-- /* GNU as does not need anything here, but the HP linker does need
-- something for external functions. */
--
-- if (TARGET_GNU_AS
-- && (!TARGET_HPUX_LD
-- || TREE_CODE (decl) != FUNCTION_DECL
-- || strstr (name, "__builtin_") == name))
-- return;
--
-- /* ??? The Intel assembler creates a reference that needs to be satisfied by
-- the linker when we do this, so we need to be careful not to do this for
-- builtin functions which have no library equivalent. Unfortunately, we
-- can't tell here whether or not a function will actually be called by
-- expand_expr, so we pull in library functions even if we may not need
-- them later. */
-- if (! strcmp (name, "__builtin_next_arg")
-- || ! strcmp (name, "alloca")
-- || ! strcmp (name, "__builtin_constant_p")
-- || ! strcmp (name, "__builtin_args_info"))
-- return;
--
-- if (TARGET_HPUX_LD)
-- ia64_hpux_add_extern_decl (decl);
-- else
-- {
-- /* assemble_name will set TREE_SYMBOL_REFERENCED, so we must save and
-- restore it. */
-- save_referenced = TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl));
-- if (TREE_CODE (decl) == FUNCTION_DECL)
-- ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function");
-- (*targetm.asm_out.globalize_label) (file, name);
-- TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)) = save_referenced;
-- }
--}
--\f
- /* Parse the -mfixed-range= option string. */
-
- static void
-@@ -9174,55 +9127,33 @@ ia64_hpux_function_arg_padding (enum mac
- return DEFAULT_FUNCTION_ARG_PADDING (mode, type);
- }
-
--/* Linked list of all external functions that are to be emitted by GCC.
-- We output the name if and only if TREE_SYMBOL_REFERENCED is set in
-- order to avoid putting out names that are never really used. */
--
--struct extern_func_list GTY(())
--{
-- struct extern_func_list *next;
-- tree decl;
--};
--
--static GTY(()) struct extern_func_list *extern_func_head;
--
--static void
--ia64_hpux_add_extern_decl (tree decl)
--{
-- struct extern_func_list *p = ggc_alloc (sizeof (struct extern_func_list));
--
-- p->decl = decl;
-- p->next = extern_func_head;
-- extern_func_head = p;
--}
--
--/* Print out the list of used global functions. */
-+/* Emit text to declare externally defined variables and functions, because
-+ the Intel assembler does not support undefined externals. */
-
--static void
--ia64_hpux_file_end (void)
-+void
-+ia64_asm_output_external (FILE *file, tree decl, const char *name)
- {
-- struct extern_func_list *p;
--
-- for (p = extern_func_head; p; p = p->next)
-- {
-- tree decl = p->decl;
-- tree id = DECL_ASSEMBLER_NAME (decl);
--
-- gcc_assert (id);
--
-- if (!TREE_ASM_WRITTEN (decl) && TREE_SYMBOL_REFERENCED (id))
-- {
-- const char *name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
--
-- TREE_ASM_WRITTEN (decl) = 1;
-- (*targetm.asm_out.globalize_label) (asm_out_file, name);
-- fputs (TYPE_ASM_OP, asm_out_file);
-- assemble_name (asm_out_file, name);
-- fprintf (asm_out_file, "," TYPE_OPERAND_FMT "\n", "function");
-- }
-+ /* We output the name if and only if TREE_SYMBOL_REFERENCED is
-+ set in order to avoid putting out names that are never really
-+ used. */
-+ if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
-+ {
-+ /* maybe_assemble_visibility will return 1 if the assembler
-+ visibility directive is outputed. */
-+ int need_visibility = ((*targetm.binds_local_p) (decl)
-+ && maybe_assemble_visibility (decl));
-+
-+ /* GNU as does not need anything here, but the HP linker does
-+ need something for external functions. */
-+ if ((TARGET_HPUX_LD || !TARGET_GNU_AS)
-+ && TREE_CODE (decl) == FUNCTION_DECL)
-+ {
-+ ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function");
-+ (*targetm.asm_out.globalize_label) (file, name);
-+ }
-+ else if (need_visibility && !TARGET_GNU_AS)
-+ (*targetm.asm_out.globalize_label) (file, name);
- }
--
-- extern_func_head = 0;
- }
-
- /* Set SImode div/mod functions, init_integral_libfuncs only initializes
---- gcc/output.h.global 2006-10-21 13:45:54.000000000 -0700
-+++ gcc/output.h 2006-12-07 05:47:22.000000000 -0800
-@@ -204,9 +204,9 @@ extern void assemble_variable (tree, int
- DONT_OUTPUT_DATA is from assemble_variable. */
- extern void align_variable (tree decl, bool dont_output_data);
-
--/* Output something to declare an external symbol to the assembler.
-- (Most assemblers don't need this, so we normally output nothing.)
-- Do nothing if DECL is not external. */
-+/* Queue for outputing something to declare an external symbol to the
-+ assembler. (Most assemblers don't need this, so we normally output
-+ nothing.) Do nothing if DECL is not external. */
- extern void assemble_external (tree);
-
- /* Assemble code to leave SIZE bytes of zeros. */
-@@ -619,6 +619,10 @@ extern void default_file_start (void);
- extern void file_end_indicate_exec_stack (void);
- extern bool default_valid_pointer_mode (enum machine_mode);
-
-+extern void default_elf_asm_output_external (FILE *file, tree,
-+ const char *);
-+extern int maybe_assemble_visibility (tree);
-+
- extern int default_address_cost (rtx);
-
- /* dbxout helper functions */
---- gcc/toplev.c.global 2006-12-07 05:45:18.000000000 -0800
-+++ gcc/toplev.c 2006-12-07 05:58:23.000000000 -0800
-@@ -1076,9 +1076,7 @@ compile_file (void)
-
- dw2_output_indirect_constants ();
-
-- /* Flush any pending external directives. cgraph did this for
-- assemble_external calls from the front end, but the RTL
-- expander can also generate them. */
-+ /* Flush any pending external directives. */
- process_pending_assemble_externals ();
-
- /* Attach a special .ident directive to the end of the file to identify
---- gcc/varasm.c.global 2006-12-07 05:45:18.000000000 -0800
-+++ gcc/varasm.c 2006-12-07 05:49:16.000000000 -0800
-@@ -126,7 +126,6 @@ static unsigned HOST_WIDE_INT array_size
- static unsigned min_align (unsigned, unsigned);
- static void output_constructor (tree, unsigned HOST_WIDE_INT, unsigned int);
- static void globalize_decl (tree);
--static void maybe_assemble_visibility (tree);
- #ifdef BSS_SECTION_ASM_OP
- #ifdef ASM_OUTPUT_BSS
- static void asm_output_bss (FILE *, tree, const char *,
-@@ -1964,11 +1963,10 @@ assemble_external (tree decl ATTRIBUTE_U
- if (!DECL_P (decl) || !DECL_EXTERNAL (decl) || !TREE_PUBLIC (decl))
- return;
-
-- if (flag_unit_at_a_time)
-- pending_assemble_externals = tree_cons (0, decl,
-- pending_assemble_externals);
-- else
-- assemble_external_real (decl);
-+ /* We want to output external symbols at very last to check if they
-+ are references or not. */
-+ pending_assemble_externals = tree_cons (0, decl,
-+ pending_assemble_externals);
- #endif
- }
-
-@@ -5071,13 +5069,18 @@ default_assemble_visibility (tree decl,
-
- /* A helper function to call assemble_visibility when needed for a decl. */
-
--static void
-+int
- maybe_assemble_visibility (tree decl)
- {
- enum symbol_visibility vis = DECL_VISIBILITY (decl);
-
- if (vis != VISIBILITY_DEFAULT)
-- targetm.asm_out.visibility (decl, vis);
-+ {
-+ targetm.asm_out.visibility (decl, vis);
-+ return 1;
-+ }
-+ else
-+ return 0;
- }
-
- /* Returns 1 if the target configuration supports defining public symbols
-@@ -6327,4 +6330,19 @@ elf_record_gcc_switches (print_switch_ty
- return 0;
- }
-
-+/* Emit text to declare externally defined symbols. It is needed to
-+ properly support non-default visibility. */
-+void
-+default_elf_asm_output_external (FILE *file ATTRIBUTE_UNUSED,
-+ tree decl,
-+ const char *name ATTRIBUTE_UNUSED)
-+{
-+ /* We output the name if and only if TREE_SYMBOL_REFERENCED is
-+ set in order to avoid putting out names that are never really
-+ used. */
-+ if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))
-+ && targetm.binds_local_p (decl))
-+ maybe_assemble_visibility (decl);
-+}
-+
- #include "gt-varasm.h"
projects / packages / crossppc-gcc.git / commitdiff