+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
/***
- bootchart.c - This file is part of systemd-bootchart
+ This file is part of systemd.
Copyright (C) 2009-2013 Intel Coproration
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+/***
+
+ Many thanks to those who contributed ideas and code:
+ - Ziga Mahkovec - Original bootchart author
+ - Anders Norgaard - PyBootchartgui
+ - Michael Meeks - bootchart2
+ - Scott James Remnant - Ubuntu C-based logger
+ - Arjan van der Ven - for the idea to merge bootgraph.pl functionality
+
+ ***/
+
#include <sys/time.h>
#include <sys/types.h>
#include <sys/resource.h>
#include <fcntl.h>
#include <stdbool.h>
-
-#include "bootchart.h"
#include "util.h"
#include "fileio.h"
#include "macro.h"
#include "conf-parser.h"
#include "strxcpyx.h"
+#include "path-util.h"
+#include "store.h"
+#include "svg.h"
+#include "bootchart.h"
double graph_start;
double log_start;
int sysfd=-1;
/* graph defaults */
-bool entropy = false;
+bool arg_entropy = false;
bool initcall = true;
-bool relative = false;
-bool filter = true;
-bool pss = false;
+bool arg_relative = false;
+bool arg_filter = true;
+bool arg_show_cmdline = false;
+bool arg_pss = false;
int samples;
-int len = 500; /* we record len+1 (1 start sample) */
-double hz = 25.0; /* 20 seconds log time */
-double scale_x = 100.0; /* 100px = 1sec */
-double scale_y = 20.0; /* 16px = 1 process bar */
+int arg_samples_len = 500; /* we record len+1 (1 start sample) */
+double arg_hz = 25.0; /* 20 seconds log time */
+double arg_scale_x = 100.0; /* 100px = 1sec */
+double arg_scale_y = 20.0; /* 16px = 1 process bar */
-char init_path[PATH_MAX] = "/sbin/init";
-char output_path[PATH_MAX] = "/run/log";
+char arg_init_path[PATH_MAX] = "/sbin/init";
+char arg_output_path[PATH_MAX] = "/run/log";
static struct rlimit rlim;
-static void signal_handler(int sig)
-{
+static void signal_handler(int sig) {
if (sig++)
sig--;
exiting = 1;
}
-
-int main(int argc, char *argv[])
-{
+int main(int argc, char *argv[]) {
_cleanup_free_ char *build = NULL;
struct sigaction sig;
struct ps_struct *ps;
char *init = NULL, *output = NULL;
const ConfigTableItem items[] = {
- { "Bootchart", "Samples", config_parse_int, 0, &len },
- { "Bootchart", "Frequency", config_parse_double, 0, &hz },
- { "Bootchart", "Relative", config_parse_bool, 0, &relative },
- { "Bootchart", "Filter", config_parse_bool, 0, &filter },
- { "Bootchart", "Output", config_parse_path, 0, &output },
- { "Bootchart", "Init", config_parse_path, 0, &init },
- { "Bootchart", "PlotMemoryUsage", config_parse_bool, 0, &pss },
- { "Bootchart", "PlotEntropyGraph", config_parse_bool, 0, &entropy },
- { "Bootchart", "ScaleX", config_parse_double, 0, &scale_x },
- { "Bootchart", "ScaleY", config_parse_double, 0, &scale_y },
+ { "Bootchart", "Samples", config_parse_int, 0, &arg_samples_len },
+ { "Bootchart", "Frequency", config_parse_double, 0, &arg_hz },
+ { "Bootchart", "Relative", config_parse_bool, 0, &arg_relative },
+ { "Bootchart", "Filter", config_parse_bool, 0, &arg_filter },
+ { "Bootchart", "Output", config_parse_path, 0, &output },
+ { "Bootchart", "Init", config_parse_path, 0, &init },
+ { "Bootchart", "PlotMemoryUsage", config_parse_bool, 0, &arg_pss },
+ { "Bootchart", "PlotEntropyGraph", config_parse_bool, 0, &arg_entropy },
+ { "Bootchart", "ScaleX", config_parse_double, 0, &arg_scale_x },
+ { "Bootchart", "ScaleY", config_parse_double, 0, &arg_scale_y },
{ NULL, NULL, NULL, 0, NULL }
};
log_warning("Failed to parse configuration file: %s", strerror(-r));
if (init != NULL)
- strscpy(init_path, sizeof(init_path), init);
+ strscpy(arg_init_path, sizeof(arg_init_path), init);
if (output != NULL)
- strscpy(output_path, sizeof(output_path), output);
+ strscpy(arg_output_path, sizeof(arg_output_path), output);
}
while (1) {
static struct option opts[] = {
- {"rel", 0, NULL, 'r'},
- {"freq", 1, NULL, 'f'},
- {"samples", 1, NULL, 'n'},
- {"pss", 0, NULL, 'p'},
- {"output", 1, NULL, 'o'},
- {"init", 1, NULL, 'i'},
- {"filter", 0, NULL, 'F'},
- {"help", 0, NULL, 'h'},
- {"scale-x", 1, NULL, 'x'},
- {"scale-y", 1, NULL, 'y'},
- {"entropy", 0, NULL, 'e'},
+ {"rel", no_argument, NULL, 'r'},
+ {"freq", required_argument, NULL, 'f'},
+ {"samples", required_argument, NULL, 'n'},
+ {"pss", no_argument, NULL, 'p'},
+ {"output", required_argument, NULL, 'o'},
+ {"init", required_argument, NULL, 'i'},
+ {"no-filter", no_argument, NULL, 'F'},
+ {"cmdline", no_argument, NULL, 'C'},
+ {"help", no_argument, NULL, 'h'},
+ {"scale-x", required_argument, NULL, 'x'},
+ {"scale-y", required_argument, NULL, 'y'},
+ {"entropy", no_argument, NULL, 'e'},
{NULL, 0, NULL, 0}
};
gind = 0;
- i = getopt_long(argc, argv, "erpf:n:o:i:Fhx:y:", opts, &gind);
+ i = getopt_long(argc, argv, "erpf:n:o:i:FChx:y:", opts, &gind);
if (i == -1)
break;
switch (i) {
case 'r':
- relative = true;
+ arg_relative = true;
break;
case 'f':
- hz = atof(optarg);
+ r = safe_atod(optarg, &arg_hz);
+ if (r < 0)
+ log_warning("failed to parse --freq/-f argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'F':
- filter = false;
+ arg_filter = false;
+ break;
+ case 'C':
+ arg_show_cmdline = true;
break;
case 'n':
- len = atoi(optarg);
+ r = safe_atoi(optarg, &arg_samples_len);
+ if (r < 0)
+ log_warning("failed to parse --samples/-n argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'o':
- strncpy(output_path, optarg, PATH_MAX - 1);
+ path_kill_slashes(optarg);
+ strscpy(arg_output_path, sizeof(arg_output_path), optarg);
break;
case 'i':
- strncpy(init_path, optarg, PATH_MAX - 1);
+ path_kill_slashes(optarg);
+ strscpy(arg_init_path, sizeof(arg_init_path), optarg);
break;
case 'p':
- pss = true;
+ arg_pss = true;
break;
case 'x':
- scale_x = atof(optarg);
+ r = safe_atod(optarg, &arg_scale_x);
+ if (r < 0)
+ log_warning("failed to parse --scale-x/-x argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'y':
- scale_y = atof(optarg);
+ r = safe_atod(optarg, &arg_scale_y);
+ if (r < 0)
+ log_warning("failed to parse --scale-y/-y argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'e':
- entropy = true;
+ arg_entropy = true;
break;
case 'h':
fprintf(stderr, "Usage: %s [OPTIONS]\n", argv[0]);
- fprintf(stderr, " --rel, -r Record time relative to recording\n");
- fprintf(stderr, " --freq, -f N Sample frequency [%f]\n", hz);
- fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", len);
- fprintf(stderr, " --scale-x, -x N Scale the graph horizontally [%f] \n", scale_x);
- fprintf(stderr, " --scale-y, -y N Scale the graph vertically [%f] \n", scale_y);
- fprintf(stderr, " --pss, -p Enable PSS graph (CPU intensive)\n");
- fprintf(stderr, " --entropy, -e Enable the entropy_avail graph\n");
- fprintf(stderr, " --output, -o [PATH] Path to output files [%s]\n", output_path);
- fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", init_path);
- fprintf(stderr, " --filter, -F Disable filtering of processes from the graph\n");
+ fprintf(stderr, " --rel, -r Record time relative to recording\n");
+ fprintf(stderr, " --freq, -f f Sample frequency [%f]\n", arg_hz);
+ fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", arg_samples_len);
+ fprintf(stderr, " --scale-x, -x N Scale the graph horizontally [%f] \n", arg_scale_x);
+ fprintf(stderr, " --scale-y, -y N Scale the graph vertically [%f] \n", arg_scale_y);
+ fprintf(stderr, " --pss, -p Enable PSS graph (CPU intensive)\n");
+ fprintf(stderr, " --entropy, -e Enable the entropy_avail graph\n");
+ fprintf(stderr, " --output, -o [PATH] Path to output files [%s]\n", arg_output_path);
+ fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", arg_init_path);
+ fprintf(stderr, " --no-filter, -F Disable filtering of processes from the graph\n");
fprintf(stderr, " that are of less importance or short-lived\n");
- fprintf(stderr, " --help, -h Display this message\n");
- fprintf(stderr, "See the installed README and bootchartd.conf.example for more information.\n");
+ fprintf(stderr, " --cmdline, -C Display the full command line with arguments\n");
+ fprintf(stderr, " of processes, instead of only the process name\n");
+ fprintf(stderr, " --help, -h Display this message\n");
+ fprintf(stderr, "See bootchart.conf for more information.\n");
exit (EXIT_SUCCESS);
break;
default:
}
}
- if (len > MAXSAMPLES) {
+ if (arg_samples_len > MAXSAMPLES) {
fprintf(stderr, "Error: samples exceeds maximum\n");
exit(EXIT_FAILURE);
}
- if (hz <= 0.0) {
+ if (arg_hz <= 0.0) {
fprintf(stderr, "Error: Frequency needs to be > 0\n");
exit(EXIT_FAILURE);
}
/*
- * If the kernel executed us through init=/sbin/bootchartd, then
+ * If the kernel executed us through init=/usr/lib/systemd/systemd-bootchart, then
* fork:
* - parent execs executable specified via init_path[] (/sbin/init by default) as pid=1
* - child logs data
if (getpid() == 1) {
if (fork()) {
/* parent */
- execl(init_path, init_path, NULL);
+ execl(arg_init_path, arg_init_path, NULL);
}
}
- argv[0][0] = '@';
+ argv[0][0] = '@';
/* start with empty ps LL */
ps_first = calloc(1, sizeof(struct ps_struct));
sig.sa_handler = signal_handler;
sigaction(SIGHUP, &sig, NULL);
- interval = (1.0 / hz) * 1000000000.0;
+ interval = (1.0 / arg_hz) * 1000000000.0;
log_uptime();
sampletime[samples] = gettime_ns();
- if (!of && (access(output_path, R_OK|W_OK|X_OK) == 0)) {
+ if (!of && (access(arg_output_path, R_OK|W_OK|X_OK) == 0)) {
t = time(NULL);
strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
- snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", output_path, datestr);
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
of = fopen(output_file, "w");
}
- if (sysfd < 0) {
+ if (sysfd < 0)
sysfd = open("/sys", O_RDONLY);
- }
- if (!build) {
+ if (!build)
parse_env_file("/etc/os-release", NEWLINE,
"PRETTY_NAME", &build,
NULL);
- }
/* wait for /proc to become available, discarding samples */
if (!(graph_start > 0.0))
} else {
overrun++;
/* calculate how many samples we lost and scrap them */
- len = len + ((int)(newint_ns / interval));
+ arg_samples_len = arg_samples_len + ((int)(newint_ns / interval));
}
samples++;
- if (samples > len)
+ if (samples > arg_samples_len)
break;
}
if (!of) {
t = time(NULL);
strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
- snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", output_path, datestr);
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
of = fopen(output_file, "w");
}
if (!of) {
- perror("open output_file");
+ fprintf(stderr, "opening output file '%s': %m\n", output_file);
exit (EXIT_FAILURE);
}
svg_do(build);
- fprintf(stderr, "bootchartd: Wrote %s\n", output_file);
- fclose(of);
+ fprintf(stderr, "systemd-bootchart wrote %s\n", output_file);
+
+ if (of)
+ fclose(of);
closedir(proc);
- close(sysfd);
+ if (sysfd >= 0)
+ close(sysfd);
/* nitpic cleanups */
ps = ps_first;
/* don't complain when overrun once, happens most commonly on 1st sample */
if (overrun > 1)
- fprintf(stderr, "bootchartd: Warning: sample time overrun %i times\n", overrun);
+ fprintf(stderr, "systemd-boochart: Warning: sample time overrun %i times\n", overrun);
return 0;
}
~ianmdlvl / elogind.git / blobdiff