summaryrefslogtreecommitdiff
path: root/src/basic/log.c
diff options
context:
space:
mode:
authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-11-06 12:48:23 -0500
committerSven Eden <yamakuzure@gmx.net>2017-07-17 17:58:34 +0200
commitee3f331e539dc37e88e558583c8a9a7a2383f5e0 (patch)
tree70d48583fde7115949f46bf2f72032d3927e0f31 /src/basic/log.c
parent2a4a438b7c7306da5f698d2247e646263f3c45c0 (diff)
tree-wide: add SD_ID128_MAKE_STR, remove LOG_MESSAGE_ID
Embedding sd_id128_t's in constant strings was rather cumbersome. We had SD_ID128_CONST_STR which returned a const char[], but it had two problems: - it wasn't possible to statically concatanate this array with a normal string - gcc wasn't really able to optimize this, and generated code to perform the "conversion" at runtime. Because of this, even our own code in coredumpctl wasn't using SD_ID128_CONST_STR. Add a new macro to generate a constant string: SD_ID128_MAKE_STR. It is not as elegant as SD_ID128_CONST_STR, because it requires a repetition of the numbers, but in practice it is more convenient to use, and allows gcc to generate smarter code: $ size .libs/elogind{,-logind,-journald}{.old,} text data bss dec hex filename 1265204 149564 4808 1419576 15a938 .libs/elogind.old 1260268 149564 4808 1414640 1595f0 .libs/elogind 246805 13852 209 260866 3fb02 .libs/elogind-logind.old 240973 13852 209 255034 3e43a .libs/elogind-logind 146839 4984 34 151857 25131 .libs/elogind-journald.old 146391 4984 34 151409 24f71 .libs/elogind-journald It is also much easier to check if a certain binary uses a certain MESSAGE_ID: $ strings .libs/elogind.old|grep MESSAGE_ID MESSAGE_ID=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x MESSAGE_ID=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x MESSAGE_ID=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x MESSAGE_ID=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x $ strings .libs/elogind|grep MESSAGE_ID MESSAGE_ID=c7a787079b354eaaa9e77b371893cd27 MESSAGE_ID=b07a249cd024414a82dd00cd181378ff MESSAGE_ID=641257651c1b4ec9a8624d7a40a9e1e7 MESSAGE_ID=de5b426a63be47a7b6ac3eaac82e2f6f MESSAGE_ID=d34d037fff1847e6ae669a370e694725 MESSAGE_ID=7d4958e842da4a758f6c1cdc7b36dcc5 MESSAGE_ID=1dee0369c7fc4736b7099b38ecb46ee7 MESSAGE_ID=39f53479d3a045ac8e11786248231fbf MESSAGE_ID=be02cf6855d2428ba40df7e9d022f03d MESSAGE_ID=7b05ebc668384222baa8881179cfda54 MESSAGE_ID=9d1aaa27d60140bd96365438aad20286
Diffstat (limited to 'src/basic/log.c')
-rw-r--r--src/basic/log.c114
1 files changed, 55 insertions, 59 deletions
diff --git a/src/basic/log.c b/src/basic/log.c
index d84c9bf11..0783372c5 100644
--- a/src/basic/log.c
+++ b/src/basic/log.c
@@ -37,7 +37,7 @@
#include "alloc-util.h"
#include "fd-util.h"
-#include "formats-util.h"
+#include "format-util.h"
#include "io-util.h"
#include "log.h"
#include "macro.h"
@@ -249,14 +249,14 @@ int log_open(void) {
return 0;
}
- if ((log_target != LOG_TARGET_AUTO && log_target != LOG_TARGET_SAFE) ||
+ if (!IN_SET(log_target, LOG_TARGET_AUTO, LOG_TARGET_SAFE) ||
getpid() == 1 ||
isatty(STDERR_FILENO) <= 0) {
#if 0 /// elogind does not support logging to systemd-journald
- if (log_target == LOG_TARGET_AUTO ||
- log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
- log_target == LOG_TARGET_JOURNAL) {
+ if (IN_SET(log_target, LOG_TARGET_AUTO,
+ LOG_TARGET_JOURNAL_OR_KMSG,
+ LOG_TARGET_JOURNAL)) {
r = log_open_journal();
if (r >= 0) {
log_close_syslog();
@@ -266,8 +266,8 @@ int log_open(void) {
}
#endif // 0
- if (log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
- log_target == LOG_TARGET_SYSLOG) {
+ if (IN_SET(log_target, LOG_TARGET_SYSLOG_OR_KMSG,
+ LOG_TARGET_SYSLOG)) {
r = log_open_syslog();
if (r >= 0) {
log_close_journal();
@@ -276,11 +276,11 @@ int log_open(void) {
}
}
- if (log_target == LOG_TARGET_AUTO ||
- log_target == LOG_TARGET_SAFE ||
- log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
- log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
- log_target == LOG_TARGET_KMSG) {
+ if (IN_SET(log_target, LOG_TARGET_AUTO,
+ LOG_TARGET_SAFE,
+ LOG_TARGET_JOURNAL_OR_KMSG,
+ LOG_TARGET_SYSLOG_OR_KMSG,
+ LOG_TARGET_KMSG)) {
r = log_open_kmsg();
if (r >= 0) {
log_close_journal();
@@ -513,7 +513,7 @@ static int log_do_header(
line ? "CODE_LINE=" : "",
line ? 1 : 0, line, /* %.0d means no output too, special case for 0 */
line ? "\n" : "",
- isempty(func) ? "" : "CODE_FUNCTION=",
+ isempty(func) ? "" : "CODE_FUNC=",
isempty(func) ? "" : func,
isempty(func) ? "" : "\n",
error ? "ERRNO=" : "",
@@ -603,9 +603,9 @@ static int log_dispatch(
*(e++) = 0;
#if 0 /// elogind does not support logging to systemd-journald
- if (log_target == LOG_TARGET_AUTO ||
- log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
- log_target == LOG_TARGET_JOURNAL) {
+ if (IN_SET(log_target, LOG_TARGET_AUTO,
+ LOG_TARGET_JOURNAL_OR_KMSG,
+ LOG_TARGET_JOURNAL)) {
k = write_to_journal(level, error, file, line, func, object_field, object, extra_field, extra, buffer);
if (k < 0) {
@@ -616,8 +616,8 @@ static int log_dispatch(
}
#endif // 0
- if (log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
- log_target == LOG_TARGET_SYSLOG) {
+ if (IN_SET(log_target, LOG_TARGET_SYSLOG_OR_KMSG,
+ LOG_TARGET_SYSLOG)) {
k = write_to_syslog(level, error, file, line, func, buffer);
if (k < 0) {
@@ -628,11 +628,11 @@ static int log_dispatch(
}
if (k <= 0 &&
- (log_target == LOG_TARGET_AUTO ||
- log_target == LOG_TARGET_SAFE ||
- log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
- log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
- log_target == LOG_TARGET_KMSG)) {
+ IN_SET(log_target, LOG_TARGET_AUTO,
+ LOG_TARGET_SAFE,
+ LOG_TARGET_SYSLOG_OR_KMSG,
+ LOG_TARGET_JOURNAL_OR_KMSG,
+ LOG_TARGET_KMSG)) {
k = write_to_kmsg(level, error, file, line, func, buffer);
if (k < 0) {
@@ -898,9 +898,9 @@ int log_struct_internal(
level = log_facility | LOG_PRI(level);
#if 0 /// elogind does not support logging to systemd-journald
- if ((log_target == LOG_TARGET_AUTO ||
- log_target == LOG_TARGET_JOURNAL_OR_KMSG ||
- log_target == LOG_TARGET_JOURNAL) &&
+ if (IN_SET(log_target, LOG_TARGET_AUTO,
+ LOG_TARGET_JOURNAL_OR_KMSG,
+ LOG_TARGET_JOURNAL) &&
journal_fd >= 0) {
char header[LINE_MAX];
struct iovec iovec[17] = {};
@@ -999,24 +999,30 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
if (streq(key, "debug") && !value)
log_set_max_level(LOG_DEBUG);
- else if (streq(key, "systemd.log_target") && value) {
+ else if (proc_cmdline_key_streq(key, "systemd.log_target")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
if (log_set_target_from_string(value) < 0)
log_warning("Failed to parse log target '%s'. Ignoring.", value);
- } else if (streq(key, "systemd.log_level") && value) {
+ } else if (proc_cmdline_key_streq(key, "systemd.log_level")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
if (log_set_max_level_from_string(value) < 0)
log_warning("Failed to parse log level '%s'. Ignoring.", value);
- } else if (streq(key, "systemd.log_color") && value) {
+ } else if (proc_cmdline_key_streq(key, "systemd.log_color")) {
- if (log_show_color_from_string(value) < 0)
+ if (log_show_color_from_string(value ?: "1") < 0)
log_warning("Failed to parse log color setting '%s'. Ignoring.", value);
- } else if (streq(key, "systemd.log_location") && value) {
+ } else if (proc_cmdline_key_streq(key, "systemd.log_location")) {
- if (log_show_location_from_string(value) < 0)
+ if (log_show_location_from_string(value ?: "1") < 0)
log_warning("Failed to parse log location setting '%s'. Ignoring.", value);
}
@@ -1027,10 +1033,9 @@ void log_parse_environment(void) {
const char *e;
if (get_ctty_devnr(0, NULL) < 0)
- /* Only try to read the command line in daemons.
- We assume that anything that has a controlling
- tty is user stuff. */
- (void) parse_proc_cmdline(parse_proc_cmdline_item, NULL, true);
+ /* Only try to read the command line in daemons. We assume that anything that has a controlling tty is
+ user stuff. */
+ (void) proc_cmdline_parse(parse_proc_cmdline_item, NULL, PROC_CMDLINE_STRIP_RD_PREFIX);
e = secure_getenv("SYSTEMD_LOG_TARGET");
if (e && log_set_target_from_string(e) < 0)
@@ -1096,8 +1101,8 @@ int log_show_location_from_string(const char *e) {
}
bool log_on_console(void) {
- if (log_target == LOG_TARGET_CONSOLE ||
- log_target == LOG_TARGET_CONSOLE_PREFIXED)
+ if (IN_SET(log_target, LOG_TARGET_CONSOLE,
+ LOG_TARGET_CONSOLE_PREFIXED))
return true;
return syslog_fd < 0 && kmsg_fd < 0 && journal_fd < 0;
@@ -1156,8 +1161,8 @@ int log_syntax_internal(
PROTECT_ERRNO;
char buffer[LINE_MAX];
- int r;
va_list ap;
+ const char *unit_fmt = NULL;
if (error < 0)
error = -error;
@@ -1176,24 +1181,15 @@ int log_syntax_internal(
va_end(ap);
if (unit)
- r = log_struct_internal(
- level, error,
- file, line, func,
- getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit,
- LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION),
- "CONFIG_FILE=%s", config_file,
- "CONFIG_LINE=%u", config_line,
- LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer),
- NULL);
- else
- r = log_struct_internal(
- level, error,
- file, line, func,
- LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION),
- "CONFIG_FILE=%s", config_file,
- "CONFIG_LINE=%u", config_line,
- LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer),
- NULL);
-
- return r;
+ unit_fmt = getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s";
+
+ return log_struct_internal(
+ level, error,
+ file, line, func,
+ "MESSAGE_ID=" SD_MESSAGE_INVALID_CONFIGURATION_STR,
+ "CONFIG_FILE=%s", config_file,
+ "CONFIG_LINE=%u", config_line,
+ LOG_MESSAGE("%s:%u: %s", config_file, config_line, buffer),
+ unit_fmt, unit,
+ NULL);
}