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build-sys: use -Og instead of -O0 to catch warnings
$ touch src/core/dbus.c; make CFLAGS=-O0 make --no-print-directory all-recursive Making all in . CC src/core/libsystemd_core_la-dbus.lo CCLD libsystemd-core.la $ touch src/core/dbus.c; make CFLAGS=-Og make --no-print-directory all-recursive Making all in . CC src/core/libsystemd_core_la-dbus.lo src/core/dbus.c: In function 'init_registered_system_bus': src/core/dbus.c:798:18: warning: 'id' may be used uninitialized in this function [-Wmaybe-uninitialized] dbus_free(id); ^ CCLD libsystemd-core.la -Og Optimize debugging experience. -Og enables optimizations that do not interfere with debugging. It should be the optimization level of choice for the standard edit-compile-debug cycle, offering a reasonable level of optimization while maintaining fast compilation and a good debugging experience.
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@ -54,7 +54,7 @@ args="$args \
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fi
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if [ "x$1" = "xc" ]; then
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./configure CFLAGS='-g -O0' $args
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./configure CFLAGS='-g -Og' $args
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make clean
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else
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echo
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@ -153,7 +153,7 @@ static int generate(char id[34]) {
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int machine_id_setup(void) {
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_cleanup_close_ int fd = -1;
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int r;
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bool writable;
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bool writable = false;
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struct stat st;
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char id[34]; /* 32 + \n + \0 */
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@ -2062,7 +2062,7 @@ void manager_dispatch_bus_query_pid_done(
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int manager_open_serialization(Manager *m, FILE **_f) {
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char *path = NULL;
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int fd;
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int fd = -1;
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FILE *f;
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assert(_f);
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@ -250,7 +250,8 @@ static int create_socket(char **name) {
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} sa = {
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.un.sun_family = AF_UNIX,
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};
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int one = 1, r;
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int one = 1;
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int r = 0;
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char *c;
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assert(name);
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@ -465,8 +465,10 @@ static int item_set_perms(Item *i, const char *path) {
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}
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static int write_one_file(Item *i, const char *path) {
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int r, e, fd, flags;
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int e, flags;
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int fd = -1;
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struct stat st;
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int r = 0;
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flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
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i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
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@ -638,8 +640,9 @@ static int glob_item(Item *i, int (*action)(Item *, const char *)) {
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}
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static int create_item(Item *i) {
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int r, e;
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int e;
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struct stat st;
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int r = 0;
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assert(i);
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