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* gmon/gmon.c: Use only not-cancelable syscalls to write profiling
	data.
This commit is contained in:
Ulrich Drepper 2003-09-04 14:26:36 +00:00
parent ce42435cab
commit fbb37d259d
2 changed files with 16 additions and 11 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2003-09-04 Ulrich Drepper <drepper@redhat.com>
* gmon/gmon.c: Use only not-cancelable syscalls to write profiling
data.
* sysdeps/generic/utmp_file.c: Use not-cancelable syscalls all
over the place. It would be allowed to have these fucntions as
cancellation points but the cleanup would be ugly and a lot of

24
gmon/gmon.c
View File

@ -42,6 +42,7 @@
#include <string.h>
#include <unistd.h>
#include <libc-internal.h>
#include <not-cancel.h>
#ifdef USE_IN_LIBIO
# include <wchar.h>
@ -58,7 +59,7 @@ struct gmonparam _gmonparam attribute_hidden = { GMON_PROF_OFF };
static int s_scale;
#define SCALE_1_TO_1 0x10000L
#define ERR(s) __write (STDERR_FILENO, s, sizeof (s) - 1)
#define ERR(s) write_not_cancel (STDERR_FILENO, s, sizeof (s) - 1)
void moncontrol __P ((int mode));
void __moncontrol __P ((int mode));
@ -198,7 +199,7 @@ write_hist (fd)
strncpy (thdr.dimen, "seconds", sizeof (thdr.dimen));
thdr.dimen_abbrev = 's';
__writev (fd, iov, 3);
writev_not_cancel_no_status (fd, iov, 3);
}
}
@ -256,13 +257,13 @@ write_call_graph (fd)
if (++nfilled == NARCS_PER_WRITEV)
{
__writev (fd, iov, 2 * nfilled);
writev_not_cancel_no_status (fd, iov, 2 * nfilled);
nfilled = 0;
}
}
}
if (nfilled > 0)
__writev (fd, iov, 2 * nfilled);
writev_not_cancel_no_status (fd, iov, 2 * nfilled);
}
@ -296,12 +297,12 @@ write_bb_counts (fd)
for (grp = __bb_head; grp; grp = grp->next)
{
ncounts = grp->ncounts;
__writev (fd, bbhead, 2);
writev_not_cancel_no_status (fd, bbhead, 2);
for (nfilled = i = 0; i < ncounts; ++i)
{
if (nfilled > (sizeof (bbbody) / sizeof (bbbody[0])) - 2)
{
__writev (fd, bbbody, nfilled);
writev_not_cancel_no_status (fd, bbbody, nfilled);
nfilled = 0;
}
@ -309,7 +310,7 @@ write_bb_counts (fd)
bbbody[nfilled++].iov_base = &grp->counts[i];
}
if (nfilled > 0)
__writev (fd, bbbody, nfilled);
writev_not_cancel_no_status (fd, bbbody, nfilled);
}
}
@ -331,12 +332,13 @@ write_gmon (void)
size_t len = strlen (env);
char buf[len + 20];
sprintf (buf, "%s.%u", env, __getpid ());
fd = __open (buf, O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666);
fd = open_not_cancel (buf, O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666);
}
if (fd == -1)
{
fd = __open ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666);
fd = open_not_cancel ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW,
0666);
if (fd < 0)
{
char buf[300];
@ -357,7 +359,7 @@ write_gmon (void)
memset (&ghdr, '\0', sizeof (struct gmon_hdr));
memcpy (&ghdr.cookie[0], GMON_MAGIC, sizeof (ghdr.cookie));
*(int32_t *) ghdr.version = GMON_VERSION;
__write (fd, &ghdr, sizeof (struct gmon_hdr));
write_not_cancel (fd, &ghdr, sizeof (struct gmon_hdr));
/* write PC histogram: */
write_hist (fd);
@ -368,7 +370,7 @@ write_gmon (void)
/* write basic-block execution counts: */
write_bb_counts (fd);
__close (fd);
close_not_cancel_no_status (fd);
}