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| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2018-10-29 23:35:40 +0100 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-22 08:21:05 -0500 |
| commit | 59dd974bc079079c23b5429cba841696fa7fae41 (patch) | |
| tree | 22fadf53110bc0fe9e0fede28f8bdd8184601512 /kernel/trace/trace_output.c | |
| parent | 05ddb25cb31491b0901d057c40ad50d01b3db783 (diff) | |
| download | lwn-59dd974bc079079c23b5429cba841696fa7fae41.tar.gz lwn-59dd974bc079079c23b5429cba841696fa7fae41.zip | |
tracing: Merge seq_print_sym_short() and seq_print_sym_offset()
These two functions are nearly identical, so we can avoid some code
duplication by moving the conditional into a common implementation.
Link: http://lkml.kernel.org/r/20181029223542.26175-2-linux@rasmusvillemoes.dk
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 34 |
1 files changed, 7 insertions, 27 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 6e6cc64faa38..85ecd061c7be 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -339,34 +339,17 @@ static inline const char *kretprobed(const char *name) #endif /* CONFIG_KRETPROBES */ static void -seq_print_sym_short(struct trace_seq *s, const char *fmt, unsigned long address) +seq_print_sym(struct trace_seq *s, const char *fmt, unsigned long address, + bool offset) { char str[KSYM_SYMBOL_LEN]; #ifdef CONFIG_KALLSYMS const char *name; - kallsyms_lookup(address, NULL, NULL, NULL, str); - - name = kretprobed(str); - - if (name && strlen(name)) { - trace_seq_printf(s, fmt, name); - return; - } -#endif - snprintf(str, KSYM_SYMBOL_LEN, "0x%08lx", address); - trace_seq_printf(s, fmt, str); -} - -static void -seq_print_sym_offset(struct trace_seq *s, const char *fmt, - unsigned long address) -{ - char str[KSYM_SYMBOL_LEN]; -#ifdef CONFIG_KALLSYMS - const char *name; - - sprint_symbol(str, address); + if (offset) + sprint_symbol(str, address); + else + kallsyms_lookup(address, NULL, NULL, NULL, str); name = kretprobed(str); if (name && strlen(name)) { @@ -424,10 +407,7 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags) goto out; } - if (sym_flags & TRACE_ITER_SYM_OFFSET) - seq_print_sym_offset(s, "%s", ip); - else - seq_print_sym_short(s, "%s", ip); + seq_print_sym(s, "%s", ip, sym_flags & TRACE_ITER_SYM_OFFSET); if (sym_flags & TRACE_ITER_SYM_ADDR) trace_seq_printf(s, " <" IP_FMT ">", ip); |