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Makefile.in (LIBGCOV_INTERFACE): Add _gcov_dump from ... 

* Makefile.in (LIBGCOV_INTERFACE): Add _gcov_dump from ...
	(LIBGCOV_DRIVER): ... here.
	* libgcov-driver.c (gcov_master): New.
	(gcov_exit): Remove from master chain.
	(__gcov_init): Add to master chain if version compatible.  Don't
	clear the version.
	* libgcov_interface (__gcov_flust): Call gcov_dump_int.
	(gcov_reset_int): Clear master chain, if compatible.
	(gcov_dump_int): New internal interface.  Dump master chain, if
	compatible.
	(gcov_dump): Alias for gcov_dump_int.
	* libgcov.h (struct gcov_root): Add next and prev fields.
	(struct gcov_master): New struct.
	(__gcov_master): New.
	(gcov_dump_int): Declare.

From-SVN: r215337
This commit is contained in:
Nathan Sidwell 2014-09-17 20:13:17 +00:00 committed by Nathan Sidwell
parent c83ee18019
commit cadb2b9689
5 changed files with 79 additions and 13 deletions
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18
libgcc/ChangeLog
View File

@ -1,3 +1,21 @@
2014-09-17 Nathan sidwell <nathan@acm.org>
* Makefile.in (LIBGCOV_INTERFACE): Add _gcov_dump from ...
(LIBGCOV_DRIVER): ... here.
* libgcov-driver.c (gcov_master): New.
(gcov_exit): Remove from master chain.
(__gcov_init): Add to master chain if version compatible. Don't
clear the version.
* libgcov_interface (__gcov_flust): Call gcov_dump_int.
(gcov_reset_int): Clear master chain, if compatible.
(gcov_dump_int): New internal interface. Dump master chain, if
compatible.
(gcov_dump): Alias for gcov_dump_int.
* libgcov.h (struct gcov_root): Add next and prev fields.
(struct gcov_master): New struct.
(__gcov_master): New.
(gcov_dump_int): Declare.
2014-09-17 Olivier Hainque <hainque@adacore.com>
* config.host (x86_64-*-mingw*): Add i386/t-cygming to tmake_file

5
libgcc/Makefile.in
View File

@ -858,9 +858,10 @@ LIBGCOV_PROFILER = _gcov_interval_profiler _gcov_pow2_profiler \
_gcov_one_value_profiler _gcov_indirect_call_profiler \
_gcov_average_profiler _gcov_ior_profiler \
_gcov_indirect_call_profiler_v2 _gcov_time_profiler
LIBGCOV_INTERFACE = _gcov_flush _gcov_fork _gcov_execl _gcov_execlp \
LIBGCOV_INTERFACE = _gcov_dump _gcov_flush _gcov_fork \
_gcov_execl _gcov_execlp \
_gcov_execle _gcov_execv _gcov_execvp _gcov_execve _gcov_reset
LIBGCOV_DRIVER = _gcov _gcov_dump
LIBGCOV_DRIVER = _gcov
libgcov-merge-objects = $(patsubst %,%$(objext),$(LIBGCOV_MERGE))
libgcov-profiler-objects = $(patsubst %,%$(objext),$(LIBGCOV_PROFILER))

25
libgcc/libgcov-driver.c
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@ -777,13 +777,23 @@ __gcov_dump_one (struct gcov_root *root)
root->run_counted = 1;
}
/* Per-program/shared-object gcov state. */
/* Per-dynamic-object gcov state. */
struct gcov_root __gcov_root;
/* Exactly one of these will be live in the process image. */
struct gcov_master __gcov_master =
{GCOV_VERSION, 0};
static void
gcov_exit (void)
{
__gcov_dump_one (&__gcov_root);
if (__gcov_root.next)
__gcov_root.next->prev = __gcov_root.prev;
if (__gcov_root.prev)
__gcov_root.prev->next = __gcov_root.next;
else
__gcov_master.root = __gcov_root.next;
}
/* Add a new object file onto the bb chain. Invoked automatically
@ -797,12 +807,21 @@ __gcov_init (struct gcov_info *info)
if (gcov_version (info, info->version, 0))
{
if (!__gcov_root.list)
atexit (gcov_exit);
{
/* Add to master list and at exit function. */
if (gcov_version (NULL, __gcov_master.version, "<master>"))
{
__gcov_root.next = __gcov_master.root;
if (__gcov_master.root)
__gcov_master.root->prev = &__gcov_root;
__gcov_master.root = &__gcov_root;
}
atexit (gcov_exit);
}
info->next = __gcov_root.list;
__gcov_root.list = info;
}
info->version = 0;
}
#endif /* !IN_GCOV_TOOL */
#endif /* L_gcov */

30
libgcc/libgcov-interface.c
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@ -85,7 +85,7 @@ __gcov_flush (void)
init_mx_once ();
__gthread_mutex_lock (&__gcov_flush_mx);
__gcov_dump_one (&__gcov_root);
__gcov_dump_int ();
__gcov_reset_int ();
__gthread_mutex_unlock (&__gcov_flush_mx);
@ -132,8 +132,16 @@ gcov_clear (const struct gcov_info *list)
void
__gcov_reset_int (void)
{
gcov_clear (__gcov_root.list);
__gcov_root.dumped = 0;
struct gcov_root *root;
/* If we're compatible with the master, iterate over everything,
otherise just do us. */
for (root = __gcov_master.version == GCOV_VERSION
? __gcov_master.root : &__gcov_root; root; root = root->next)
{
gcov_clear (root->list);
root->dumped = 0;
}
}
ALIAS_void_fn (__gcov_reset_int, __gcov_reset);
@ -145,11 +153,19 @@ ALIAS_void_fn (__gcov_reset_int, __gcov_reset);
so far, in order to collect profile in region of interest. */
void
__gcov_dump (void)
__gcov_dump_int (void)
{
__gcov_dump_one (&__gcov_root);
struct gcov_root *root;
/* If we're compatible with the master, iterate over everything,
otherise just do us. */
for (root = __gcov_master.version == GCOV_VERSION
? __gcov_master.root : &__gcov_root; root; root = root->next)
__gcov_dump_one (root);
}
ALIAS_void_fn (__gcov_dump_int, __gcov_dump);
#endif /* L_gcov_dump */
#ifdef L_gcov_fork
@ -169,8 +185,8 @@ __gcov_fork (void)
#endif
#ifdef L_gcov_execl
/* A wrapper for the execl function. Flushes the accumulated profiling data, so
that they are not lost. */
/* A wrapper for the execl function. Flushes the accumulated
profiling data, so that they are not lost. */
int
__gcov_execl (const char *path, char *arg, ...)

14
libgcc/libgcov.h
View File

@ -212,10 +212,21 @@ struct gcov_root
struct gcov_info *list;
unsigned dumped : 1; /* counts have been dumped. */
unsigned run_counted : 1; /* run has been accounted for. */
struct gcov_root *next;
struct gcov_root *prev;
};
extern struct gcov_root __gcov_root ATTRIBUTE_HIDDEN;
struct gcov_master
{
gcov_unsigned_t version;
struct gcov_root *root;
};
/* Exactly one of these will be active in the process. */
extern struct gcov_master __gcov_master;
/* Dump a set of gcov objects. */
extern void __gcov_dump_one (struct gcov_root *) ATTRIBUTE_HIDDEN;
@ -230,8 +241,9 @@ extern void __gcov_flush (void) ATTRIBUTE_HIDDEN;
extern void __gcov_reset (void);
extern void __gcov_reset_int (void) ATTRIBUTE_HIDDEN;
/* Function to enable early write of profile information so far. */
/* User function to enable early write of profile information so far. */
extern void __gcov_dump (void);
extern void __gcov_dump_int (void) ATTRIBUTE_HIDDEN;
/* The merge function that just sums the counters. */
extern void __gcov_merge_add (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;