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hpux.h (TARGET_HPUX_LD): New, define true. 

* config/ia64/hpux.h (TARGET_HPUX_LD): New, define true.
	(ASM_FILE_END) New.
	* config/ia64/ia64.h (TARGET_HPUX_LD): New, define false.
	* config/ia64/ia64-protos.h (ia64_hpux_asm_file_end): New.
	* config/ia64/ia64.c (ia64_asm_output_external): Create list
	of external functions if TARGET_HPUX_LD is true.
	(ia64_hpux_add_extern_decl): New, routine to put names on
	list of external functions.
	(ia64_hpux_asm_file_end): Put out declarations for external
	functions if and only if they are used.

From-SVN: r56986
This commit is contained in:
Steve Ellcey 2002-09-09 22:03:31 +00:00 committed by Steve Ellcey
parent 0c263f4ed2
commit 686f3bf031
5 changed files with 101 additions and 9 deletions
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13
gcc/ChangeLog
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@ -1,3 +1,16 @@
2002-09-09 Steve Ellcey <sje@cup.hp.com>
* config/ia64/hpux.h (TARGET_HPUX_LD): New, define true.
(ASM_FILE_END) New.
* config/ia64/ia64.h (TARGET_HPUX_LD): New, define false.
* config/ia64/ia64-protos.h (ia64_hpux_asm_file_end): New.
* config/ia64/ia64.c (ia64_asm_output_external): Create list
of external functions if TARGET_HPUX_LD is true.
(ia64_hpux_add_extern_decl): New, routine to put names on
list of external functions.
(ia64_hpux_asm_file_end): Put out declarations for external
functions if and only if they are used.
2002-09-09 John David Anglin <dave@hiauly1.hia.nrc.ca>
* pa.md (exception_receiver, builtin_setjmp_receiver): Add blockage

11
gcc/config/ia64/hpux.h
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@ -127,3 +127,14 @@ do { \
#define REGISTER_TARGET_PRAGMAS(PFILE) \
cpp_register_pragma (PFILE, 0, "builtin", ia64_hpux_handle_builtin_pragma)
/* Tell ia64.c that we are using the HP linker and we should delay output of
function extern declarations so that we don't output them for functions
which are never used (and may not be defined). */
#undef TARGET_HPUX_LD
#define TARGET_HPUX_LD 1
/* Put out the needed function declarations at the end. */
#define ASM_FILE_END(STREAM) ia64_hpux_asm_file_end(STREAM)

2
gcc/config/ia64/ia64-protos.h
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@ -148,3 +148,5 @@ extern enum direction ia64_hpux_function_arg_padding PARAMS ((enum machine_mode,
#ifdef GCC_C_PRAGMA_H
extern void ia64_hpux_handle_builtin_pragma PARAMS ((cpp_reader *));
#endif
extern void ia64_hpux_asm_file_end PARAMS ((FILE *));

82
gcc/config/ia64/ia64.c
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@ -171,6 +171,9 @@ static void ia64_aix_unique_section PARAMS ((tree, int))
static void ia64_aix_select_rtx_section PARAMS ((enum machine_mode, rtx,
unsigned HOST_WIDE_INT))
ATTRIBUTE_UNUSED;
static void ia64_hpux_add_extern_decl PARAMS ((const char *name))
ATTRIBUTE_UNUSED;
/* Table of valid machine attributes. */
static const struct attribute_spec ia64_attribute_table[] =
@ -4039,8 +4042,13 @@ ia64_asm_output_external (file, decl, name)
{
int save_referenced;
/* GNU as does not need anything here. */
if (TARGET_GNU_AS)
/* 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
@ -4055,13 +4063,18 @@ ia64_asm_output_external (file, decl, name)
|| ! strcmp (name, "__builtin_args_info"))
return;
/* 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;
if (TARGET_HPUX_LD)
ia64_hpux_add_extern_decl (name);
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. */
@ -8050,6 +8063,57 @@ ia64_hpux_function_arg_padding (mode, type)
: GET_MODE_BITSIZE (mode) < PARM_BOUNDARY)
? downward : upward);
}
/* 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
{
struct extern_func_list *next; /* next external */
char *name; /* name of the external */
} *extern_func_head = 0;
static void
ia64_hpux_add_extern_decl (name)
const char *name;
{
struct extern_func_list *p;
p = (struct extern_func_list *) xmalloc (sizeof (struct extern_func_list));
p->name = xmalloc (strlen (name) + 1);
strcpy(p->name, name);
p->next = extern_func_head;
extern_func_head = p;
}
/* Print out the list of used global functions. */
void
ia64_hpux_asm_file_end (file)
FILE *file;
{
while (extern_func_head)
{
char *real_name;
tree decl;
real_name = (* targetm.strip_name_encoding) (extern_func_head->name);
decl = get_identifier (real_name);
if (decl && ! TREE_ASM_WRITTEN (decl) && TREE_SYMBOL_REFERENCED (decl))
{
TREE_ASM_WRITTEN (decl) = 1;
(*targetm.asm_out.globalize_label) (file, real_name);
fprintf (file, "%s", TYPE_ASM_OP);
assemble_name (file, real_name);
putc (',', file);
fprintf (file, TYPE_OPERAND_FMT, "function");
putc ('\n', file);
}
extern_func_head = extern_func_head->next;
}
}
/* Switch to the section to which we should output X. The only thing
special we do here is to honor small data. */

2
gcc/config/ia64/ia64.h
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@ -127,6 +127,8 @@ extern int ia64_tls_size;
#define TARGET_TLS22 (ia64_tls_size == 22)
#define TARGET_TLS64 (ia64_tls_size == 64)
#define TARGET_HPUX_LD 0
/* This macro defines names of command options to set and clear bits in
`target_flags'. Its definition is an initializer with a subgrouping for
each command option. */