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Add Init_priority support.

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Added TARGET_ASM_CONSTRUCTOR and TARGET_ASM_DESTRUCTOR macros. These
macros allows users to control the order of initialization of objects
defined at namespace scope with the init_priority attribute by
specifying a relative priority.

ChangeLog:
2014-07-28  Ajit Agarwal  <ajitkum@xilinx.com>

	* config/microblaze/microblaze.c (microblaze_elf_asm_cdtor): New.
	(microblaze_elf_asm_constructor,microblaze_elf_asm_destructor): New.
	* config/microblaze/microblaze.h
	(TARGET_ASM_CONSTRUCTOR,TARGET_ASM_DESTRUCTOR): New Macros.

From-SVN: r214110
This commit is contained in:
Ajit Agarwal 2014-08-18 17:04:41 +00:00 • committed by Michael Eager
parent f8df6750f4
commit 57fb889f41
3 changed files with 57 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2014-08-18 Ajit Agarwal <ajitkum@xilinx.com>
* config/microblaze/microblaze.c (microblaze_elf_asm_cdtor): New.
(microblaze_elf_asm_constructor,microblaze_elf_asm_destructor): New.
* config/microblaze/microblaze.h
(TARGET_ASM_CONSTRUCTOR,TARGET_ASM_DESTRUCTOR): New Macros.
2014-08-18 H.J. Lu <hongjiu.lu@intel.com>
PR other/62168

44
gcc/config/microblaze/microblaze.c
View file

@ -231,6 +231,9 @@ const struct attribute_spec microblaze_attribute_table[] = {
static int microblaze_interrupt_function_p (tree);
static void microblaze_elf_asm_constructor (rtx, int) ATTRIBUTE_UNUSED;
static void microblaze_elf_asm_destructor (rtx, int) ATTRIBUTE_UNUSED;
section *sdata2_section;
#ifdef HAVE_AS_TLS
@ -2714,6 +2717,47 @@ microblaze_function_end_prologue (FILE * file)
}
}
static void
microblaze_elf_asm_cdtor (rtx symbol, int priority, bool is_ctor)
{
section *s;
if (priority != DEFAULT_INIT_PRIORITY)
{
char buf[18];
sprintf (buf, "%s.%.5u",
is_ctor ? ".ctors" : ".dtors",
MAX_INIT_PRIORITY - priority);
s = get_section (buf, SECTION_WRITE, NULL_TREE);
}
else if (is_ctor)
s = ctors_section;
else
s = dtors_section;
switch_to_section (s);
assemble_align (POINTER_SIZE);
fputs ("\t.word\t", asm_out_file);
output_addr_const (asm_out_file, symbol);
fputs ("\n", asm_out_file);
}
/* Add a function to the list of static constructors. */
static void
microblaze_elf_asm_constructor (rtx symbol, int priority)
{
microblaze_elf_asm_cdtor (symbol, priority, /*is_ctor=*/true);
}
/* Add a function to the list of static destructors. */
static void
microblaze_elf_asm_destructor (rtx symbol, int priority)
{
microblaze_elf_asm_cdtor (symbol, priority, /*is_ctor=*/false);
}
/* Expand the prologue into a bunch of separate insns. */
void

6
gcc/config/microblaze/microblaze.h
View file

@ -691,6 +691,12 @@ do { \
{ \
}
#undef TARGET_ASM_CONSTRUCTOR
#define TARGET_ASM_CONSTRUCTOR microblaze_elf_asm_constructor
#undef TARGET_ASM_DESTRUCTOR
#define TARGET_ASM_DESTRUCTOR microblaze_elf_asm_destructor
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
sprintf ((LABEL), "*%s%s%ld", (LOCAL_LABEL_PREFIX), (PREFIX), (long)(NUM))