summaryrefslogtreecommitdiff
path: root/gmon
diff options
context:
space:
mode:
Diffstat (limited to 'gmon')
-rw-r--r--gmon/gmon.c94
-rw-r--r--gmon/sys/gmon_out.h48
2 files changed, 85 insertions, 57 deletions
diff --git a/gmon/gmon.c b/gmon/gmon.c
index 6dc4cb5998..e00b339367 100644
--- a/gmon/gmon.c
+++ b/gmon/gmon.c
@@ -34,6 +34,7 @@
#include <sys/time.h>
#include <sys/gmon.h>
#include <sys/gmon_out.h>
+#include <sys/uio.h>
#include <stdio.h>
#include <fcntl.h>
@@ -165,21 +166,26 @@ static void
write_hist (fd)
int fd;
{
- const u_char tag = GMON_TAG_TIME_HIST;
- struct gmon_hist_hdr thdr;
+ u_char tag = GMON_TAG_TIME_HIST;
+ struct gmon_hist_hdr thdr __attribute__ ((aligned (__alignof__ (char *))));
if (_gmonparam.kcountsize > 0)
{
- thdr.low_pc = _gmonparam.lowpc;
- thdr.high_pc = _gmonparam.highpc;
- thdr.hist_size = _gmonparam.kcountsize / sizeof(HISTCOUNTER);
- thdr.prof_rate = __profile_frequency();
- strncpy(thdr.dimen, "seconds", sizeof(thdr.dimen));
+ struct iovec iov[3] =
+ {
+ { &tag, sizeof (tag) },
+ { &thdr, sizeof (struct gmon_hist_hdr) },
+ { _gmonparam.kcount, _gmonparam.kcountsize }
+ };
+
+ *(char **) thdr.low_pc = (char *) _gmonparam.lowpc;
+ *(char **) thdr.high_pc = (char *) _gmonparam.highpc;
+ *(int *) thdr.hist_size = _gmonparam.kcountsize / sizeof (HISTCOUNTER);
+ *(int *) thdr.prof_rate = __profile_frequency ();
+ strncpy (thdr.dimen, "seconds", sizeof (thdr.dimen));
thdr.dimen_abbrev = 's';
- write(fd, &tag, sizeof(tag));
- write(fd, &thdr, sizeof(thdr));
- write(fd, _gmonparam.kcount, _gmonparam.kcountsize);
+ __writev (fd, iov, 3);
}
}
@@ -188,12 +194,19 @@ static void
write_call_graph (fd)
int fd;
{
- const u_char tag = GMON_TAG_CG_ARC;
- struct gmon_cg_arc_record raw_arc;
+ u_char tag = GMON_TAG_CG_ARC;
+ struct gmon_cg_arc_record raw_arc
+ __attribute__ ((aligned (__alignof__ (char*))));
int from_index, to_index, from_len;
u_long frompc;
- from_len = _gmonparam.fromssize / sizeof(*_gmonparam.froms);
+ struct iovec iov[2] =
+ {
+ { &tag, sizeof (tag) },
+ { &raw_arc, sizeof (struct gmon_cg_arc_record) }
+ };
+
+ from_len = _gmonparam.fromssize / sizeof (*_gmonparam.froms);
for (from_index = 0; from_index < from_len; ++from_index)
{
if (_gmonparam.froms[from_index] == 0)
@@ -201,17 +214,16 @@ write_call_graph (fd)
frompc = _gmonparam.lowpc;
frompc += (from_index * _gmonparam.hashfraction
- * sizeof(*_gmonparam.froms));
+ * sizeof (*_gmonparam.froms));
for (to_index = _gmonparam.froms[from_index];
to_index != 0;
to_index = _gmonparam.tos[to_index].link)
{
- raw_arc.from_pc = frompc;
- raw_arc.self_pc = _gmonparam.tos[to_index].selfpc;
- raw_arc.count = _gmonparam.tos[to_index].count;
+ *(char **) raw_arc.from_pc = (char *)frompc;
+ *(char **) raw_arc.self_pc = (char *)_gmonparam.tos[to_index].selfpc;
+ *(int *) raw_arc.count = _gmonparam.tos[to_index].count;
- write(fd, &tag, sizeof(tag));
- write(fd, &raw_arc, sizeof(raw_arc));
+ __writev (fd, iov, 2);
}
}
}
@@ -222,22 +234,32 @@ write_bb_counts (fd)
int fd;
{
struct __bb *grp;
- const u_char tag = GMON_TAG_BB_COUNT;
+ u_char tag = GMON_TAG_BB_COUNT;
int ncounts;
int i;
+ struct iovec bbhead[2] =
+ {
+ { &tag, sizeof (tag) },
+ { &ncounts, sizeof (ncounts) }
+ };
+ struct iovec bbbody[2];
+
+ bbbody[0].iov_len = sizeof (grp->addresses[0]);
+ bbbody[1].iov_len = sizeof (grp->addresses[0]);
+
/* Write each group of basic-block info (all basic-blocks in a
compilation unit form a single group). */
for (grp = __bb_head; grp; grp = grp->next)
{
ncounts = grp->ncounts;
- write(fd, &tag, sizeof(tag));
- write(fd, &ncounts, sizeof(ncounts));
+ __writev (fd, bbhead, 2);
for (i = 0; i < ncounts; ++i)
{
- write(fd, &grp->addresses[i], sizeof(grp->addresses[0]));
- write(fd, &grp->counts[i], sizeof(grp->counts[0]));
+ bbbody[0].iov_base = (char *) &grp->addresses[i];
+ bbbody[1].iov_base = &grp->counts[i];
+ __writev (fd, bbbody, 2);
}
}
}
@@ -246,31 +268,31 @@ write_bb_counts (fd)
void
_mcleanup ()
{
- struct gmon_hdr ghdr;
+ struct gmon_hdr ghdr __attribute__ ((aligned (__alignof__ (int))));
int fd;
- moncontrol(0);
- fd = open("gmon.out", O_CREAT|O_TRUNC|O_WRONLY, 0666);
+ moncontrol (0);
+ fd = __open ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY, 0666);
if (fd < 0)
{
- perror("_mcleanup: gmon.out");
+ perror ("_mcleanup: gmon.out");
return;
}
/* write gmon.out header: */
- memset(&ghdr, 0, sizeof(ghdr));
- memcpy(&ghdr.cookie[0], GMON_MAGIC, sizeof(ghdr.cookie));
- ghdr.version = GMON_VERSION;
- write(fd, &ghdr, sizeof(ghdr));
+ memset (&ghdr, 0, sizeof (struct gmon_hdr));
+ memcpy (&ghdr.cookie[0], GMON_MAGIC, sizeof (ghdr.cookie));
+ *(int *) ghdr.version = GMON_VERSION;
+ __write (fd, &ghdr, sizeof (struct gmon_hdr));
/* write PC histogram: */
- write_hist(fd);
+ write_hist (fd);
/* write call-graph: */
- write_call_graph(fd);
+ write_call_graph (fd);
/* write basic-block execution counts: */
- write_bb_counts(fd);
+ write_bb_counts (fd);
- close(fd);
+ __close (fd);
}
diff --git a/gmon/sys/gmon_out.h b/gmon/sys/gmon_out.h
index 94e815d94b..36059cc572 100644
--- a/gmon/sys/gmon_out.h
+++ b/gmon/sys/gmon_out.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Mosberger <davidm@cs.arizona.edu>.
@@ -40,30 +40,36 @@ __BEGIN_DECLS
* always comes first in gmon.out and is then followed by a series
* records defined below.
*/
-struct gmon_hdr {
- char cookie[4];
- int version;
- int spare[3];
-};
+struct gmon_hdr
+ {
+ char cookie[4];
+ char version[4];
+ char spare[3 * 4];
+ };
/* types of records in this file: */
-typedef enum {
- GMON_TAG_TIME_HIST = 0, GMON_TAG_CG_ARC = 1, GMON_TAG_BB_COUNT = 2
-} GMON_Record_Tag;
+typedef enum
+ {
+ GMON_TAG_TIME_HIST = 0,
+ GMON_TAG_CG_ARC = 1,
+ GMON_TAG_BB_COUNT = 2
+ } GMON_Record_Tag;
-struct gmon_hist_hdr {
- unsigned long low_pc; /* base pc address of sample buffer */
- unsigned long high_pc; /* max pc address of sampled buffer */
- int hist_size; /* size of sample buffer */
- int prof_rate; /* profiling clock rate */
- char dimen[15]; /* phys. dim., usually "seconds" */
- char dimen_abbrev; /* usually 's' for "seconds" */
-};
+struct gmon_hist_hdr
+ {
+ char low_pc[sizeof (char *)]; /* base pc address of sample buffer */
+ char high_pc[sizeof (char *)]; /* max pc address of sampled buffer */
+ char hist_size[4]; /* size of sample buffer */
+ char prof_rate[4]; /* profiling clock rate */
+ char dimen[15]; /* phys. dim., usually "seconds" */
+ char dimen_abbrev; /* usually 's' for "seconds" */
+ };
-struct gmon_cg_arc_record {
- unsigned long from_pc; /* address within caller's body */
- unsigned long self_pc; /* address within callee's body */
- int count; /* number of arc traversals */
+struct gmon_cg_arc_record
+ {
+ char from_pc[sizeof (char *)]; /* address within caller's body */
+ char self_pc[sizeof (char *)]; /* address within callee's body */
+ char count[4]; /* number of arc traversals */
};
__END_DECLS
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-13 13:25:33 +0000