diff options
| author | Lennart Poettering <lennart@poettering.net> | 2012-02-01 22:33:15 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2012-02-01 22:33:15 +0100 |
| commit | 5d6b158473100a7a85e790f8ead0b826baa13b5e (patch) | |
| tree | b85b3165d677dcccb639b6678023206edce2fdc3 /src/execute.c | |
| parent | a6927d7ffc18c51fbb9940f5f1e89f5c7695ed63 (diff) | |
exec: include path name of binary we are about to execute when renaming forked off processes
Immediately after forking off a process change the comm name and argv[0]
to "(foobar)" where "foobar" is the basename of the path we are about to
execute.
This should be useful when charting boot progress.
Diffstat (limited to 'src/execute.c')
| -rw-r--r-- | src/execute.c | 39 |
1 files changed, 34 insertions, 5 deletions
diff --git a/src/execute.c b/src/execute.c index 13f4561f27..536877d68c 100644 --- a/src/execute.c +++ b/src/execute.c @@ -770,8 +770,8 @@ static int setup_pam( * termination */ /* This string must fit in 10 chars (i.e. the length - * of "/sbin/init") */ - rename_process("sd(PAM)"); + * of "/sbin/init"), to look pretty in /bin/ps */ + rename_process("(sd-pam)"); /* Make sure we don't keep open the passed fds in this child. We assume that otherwise only those fds are @@ -919,6 +919,37 @@ finish: return r; } +static void rename_process_from_path(const char *path) { + char process_name[11]; + const char *p; + size_t l; + + /* This resulting string must fit in 10 chars (i.e. the length + * of "/sbin/init") to look pretty in /bin/ps */ + + p = file_name_from_path(path); + if (isempty(p)) { + rename_process("(...)"); + return; + } + + l = strlen(p); + if (l > 8) { + /* The end of the process name is usually more + * interesting, since the first bit might just be + * "systemd-" */ + p = p + l - 8; + l = 8; + } + + process_name[0] = '('; + memcpy(process_name+1, p, l); + process_name[1+l] = ')'; + process_name[1+l+1] = 0; + + rename_process(process_name); +} + int exec_spawn(ExecCommand *command, char **argv, const ExecContext *context, @@ -997,9 +1028,7 @@ int exec_spawn(ExecCommand *command, /* child */ - /* This string must fit in 10 chars (i.e. the length - * of "/sbin/init") */ - rename_process("sd(EXEC)"); + rename_process_from_path(command->path); /* We reset exactly these signals, since they are the * only ones we set to SIG_IGN in the main daemon. All |