re PR middle-end/17982 (stop calling assemble_external before final assembly output time)
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. From-SVN: r119764
This commit is contained in:
H.J. Lu
H.J. Lu
parent
864abd46ca
commit
c47c29c896
|
|
@ -1,3 +1,31 @@
|
|||
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.
|
||||
|
||||
2006-12-11 Daniel Berlin <dberlin@dberlin.org>
|
||||
|
||||
* tree-ssa-structalias.c (handle_ptr_arith): Return false when we
|
||||
|
|
|
|||
|
|
@ -1388,8 +1388,6 @@ 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. */
|
||||
varpool_analyze_pending_decls ();
|
||||
|
|
|
|||
|
|
@ -504,3 +504,13 @@ Boston, MA 02110-1301, USA. */
|
|||
elf_record_gcc_switches function defined in varasm.c. */
|
||||
#undef TARGET_ASM_RECORD_GCC_SWITCHES
|
||||
#define TARGET_ASM_RECORD_GCC_SWITCHES elf_record_gcc_switches
|
||||
|
||||
/* 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
|
||||
|
|
|
|||
|
|
@ -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\""
|
||||
|
||||
|
|
|
|||
|
|
@ -255,10 +255,6 @@ static section *ia64_rwreloc_select_rtx_section (enum machine_mode, 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)
|
||||
|
|
@ -5020,49 +5016,6 @@ ia64_secondary_reload_class (enum reg_class class,
|
|||
return NO_REGS;
|
||||
}
|
||||
|
||||
|
||||
/* 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;
|
||||
}
|
||||
}
|
||||
|
||||
/* Parse the -mfixed-range= option string. */
|
||||
|
||||
|
|
@ -9174,55 +9127,33 @@ ia64_hpux_function_arg_padding (enum machine_mode mode, tree type)
|
|||
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. */
|
||||
/* Emit text to declare externally defined variables and functions, because
|
||||
the Intel assembler does not support undefined externals. */
|
||||
|
||||
struct extern_func_list GTY(())
|
||||
void
|
||||
ia64_asm_output_external (FILE *file, tree decl, const char *name)
|
||||
{
|
||||
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. */
|
||||
|
||||
static void
|
||||
ia64_hpux_file_end (void)
|
||||
{
|
||||
struct extern_func_list *p;
|
||||
|
||||
for (p = extern_func_head; p; p = p->next)
|
||||
/* 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)))
|
||||
{
|
||||
tree decl = p->decl;
|
||||
tree id = 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));
|
||||
|
||||
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");
|
||||
}
|
||||
/* 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
|
||||
|
|
|
|||
10
gcc/output.h
10
gcc/output.h
|
|
@ -204,9 +204,9 @@ extern void assemble_variable (tree, int, int, 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 */
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
34
gcc/varasm.c
34
gcc/varasm.c
|
|
@ -126,7 +126,6 @@ static unsigned HOST_WIDE_INT array_size_for_constructor (tree);
|
|||
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_UNUSED)
|
|||
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, int vis)
|
|||
|
||||
/* 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_type type, const char * name)
|
|||
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"
|
||||
|
|
|
|||
Loading…
Reference in New Issue