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tracing: Only create branch tracer options when compiled in 

When the branch tracer is not compiled in, do not create the option files
associated to it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-09-29 10:19:35 -04:00 committed by Steven Rostedt
parent 729358da95
commit 4ee4301c4b
1 changed files with 9 additions and 2 deletions
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11
kernel/trace/trace.h
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@ -895,6 +895,13 @@ extern int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
# define FUNCTION_GRAPH_DEFAULT_FLAGS 0UL
#endif
#ifdef CONFIG_BRANCH_TRACER
# define BRANCH_FLAGS \
C(BRANCH, "branch"),
#else
# define BRANCH_FLAGS
#endif
/*
* trace_iterator_flags is an enumeration that defines bit
* positions into trace_flags that controls the output.
@ -913,7 +920,6 @@ extern int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
C(BLOCK, "block"), \
C(STACKTRACE, "stacktrace"), \
C(PRINTK, "trace_printk"), \
C(BRANCH, "branch"), \
C(ANNOTATE, "annotate"), \
C(USERSTACKTRACE, "userstacktrace"), \
C(SYM_USEROBJ, "sym-userobj"), \
@ -926,7 +932,8 @@ extern int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
C(IRQ_INFO, "irq-info"), \
C(MARKERS, "markers"), \
C(FUNCTION, "function-trace"), \
FGRAPH_FLAGS
FGRAPH_FLAGS \
BRANCH_FLAGS
/*
* By defining C, we can make TRACE_FLAGS a list of bit names