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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 19:45:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 19:45:45 -0700
commit2074006dace5d289d90f2bd31ae1e4bc94965f55 (patch)
tree1352a7ad510372f5281672b7c981a1d6f2386908 /include/trace
parentf72e24a1240b78f421649c4d88f5c24ab1c896a1 (diff)
parent69d71879d2cf67a381055f698a1d7def00dc4ed7 (diff)
downloadop-kernel-dev-2074006dace5d289d90f2bd31ae1e4bc94965f55.zip
op-kernel-dev-2074006dace5d289d90f2bd31ae1e4bc94965f55.tar.gz
Merge tag 'trace-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "The new features of this release: - Added TRACE_DEFINE_SIZEOF() which allows trace events that use sizeof() it the TP_printk() to be converted to the actual size such that trace-cmd and perf can parse them correctly. - Some rework of the TRACE_DEFINE_ENUM() such that the above TRACE_DEFINE_SIZEOF() could reuse the same code. - Recording of tgid (Thread Group ID). This is similar to how task COMMs are recorded (cached at sched_switch), where it is in a table and used on output of the trace and trace_pipe files. - Have ":mod:<module>" be cached when written into set_ftrace_filter. Then the functions of the module will be traced at module load. - Some random clean ups and small fixes" * tag 'trace-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (26 commits) ftrace: Test for NULL iter->tr in regex for stack_trace_filter changes ftrace: Decrement count for dyn_ftrace_total_info for init functions ftrace: Unlock hash mutex on failed allocation in process_mod_list() tracing: Add support for display of tgid in trace output tracing: Add support for recording tgid of tasks ftrace: Decrement count for dyn_ftrace_total_info file ftrace: Remove unused function ftrace_arch_read_dyn_info() sh/ftrace: Remove only user of ftrace_arch_read_dyn_info() ftrace: Have cached module filters be an active filter ftrace: Implement cached modules tracing on module load ftrace: Have the cached module list show in set_ftrace_filter ftrace: Add :mod: caching infrastructure to trace_array tracing: Show address when function names are not found ftrace: Add missing comment for FTRACE_OPS_FL_RCU tracing: Rename update the enum_map file tracing: Add TRACE_DEFINE_SIZEOF() macros tracing: define TRACE_DEFINE_SIZEOF() macro to map sizeof's to their values tracing: Rename enum_replace to eval_replace trace: rename enum_map functions trace: rename trace.c enum functions ...
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/xen.h13
-rw-r--r--include/trace/trace_events.h26
2 files changed, 32 insertions, 7 deletions
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index 31acce9..b70a38b 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -30,6 +30,8 @@ DECLARE_EVENT_CLASS(xen_mc__batch,
DEFINE_XEN_MC_BATCH(xen_mc_batch);
DEFINE_XEN_MC_BATCH(xen_mc_issue);
+TRACE_DEFINE_SIZEOF(ulong);
+
TRACE_EVENT(xen_mc_entry,
TP_PROTO(struct multicall_entry *mc, unsigned nargs),
TP_ARGS(mc, nargs),
@@ -40,8 +42,8 @@ TRACE_EVENT(xen_mc_entry,
),
TP_fast_assign(__entry->op = mc->op;
__entry->nargs = nargs;
- memcpy(__entry->args, mc->args, sizeof(unsigned long) * nargs);
- memset(__entry->args + nargs, 0, sizeof(unsigned long) * (6 - nargs));
+ memcpy(__entry->args, mc->args, sizeof(ulong) * nargs);
+ memset(__entry->args + nargs, 0, sizeof(ulong) * (6 - nargs));
),
TP_printk("op %u%s args [%lx, %lx, %lx, %lx, %lx, %lx]",
__entry->op, xen_hypercall_name(__entry->op),
@@ -122,6 +124,7 @@ TRACE_EVENT(xen_mc_extend_args,
__entry->res == XEN_MC_XE_NO_SPACE ? "NO_SPACE" : "???")
);
+TRACE_DEFINE_SIZEOF(pteval_t);
/* mmu */
DECLARE_EVENT_CLASS(xen_mmu__set_pte,
TP_PROTO(pte_t *ptep, pte_t pteval),
@@ -199,6 +202,8 @@ TRACE_EVENT(xen_mmu_pte_clear,
__entry->mm, __entry->addr, __entry->ptep)
);
+TRACE_DEFINE_SIZEOF(pmdval_t);
+
TRACE_EVENT(xen_mmu_set_pmd,
TP_PROTO(pmd_t *pmdp, pmd_t pmdval),
TP_ARGS(pmdp, pmdval),
@@ -226,6 +231,8 @@ TRACE_EVENT(xen_mmu_pmd_clear,
#if CONFIG_PGTABLE_LEVELS >= 4
+TRACE_DEFINE_SIZEOF(pudval_t);
+
TRACE_EVENT(xen_mmu_set_pud,
TP_PROTO(pud_t *pudp, pud_t pudval),
TP_ARGS(pudp, pudval),
@@ -241,6 +248,8 @@ TRACE_EVENT(xen_mmu_set_pud,
(int)sizeof(pudval_t) * 2, (unsigned long long)__entry->pudval)
);
+TRACE_DEFINE_SIZEOF(p4dval_t);
+
TRACE_EVENT(xen_mmu_set_p4d,
TP_PROTO(p4d_t *p4dp, p4d_t *user_p4dp, p4d_t p4dval),
TP_ARGS(p4dp, user_p4dp, p4dval),
diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h
index 00f6431..3976fa1 100644
--- a/include/trace/trace_events.h
+++ b/include/trace/trace_events.h
@@ -35,15 +35,28 @@ TRACE_MAKE_SYSTEM_STR();
#undef TRACE_DEFINE_ENUM
#define TRACE_DEFINE_ENUM(a) \
- static struct trace_enum_map __used __initdata \
+ static struct trace_eval_map __used __initdata \
__##TRACE_SYSTEM##_##a = \
{ \
.system = TRACE_SYSTEM_STRING, \
- .enum_string = #a, \
- .enum_value = a \
+ .eval_string = #a, \
+ .eval_value = a \
}; \
- static struct trace_enum_map __used \
- __attribute__((section("_ftrace_enum_map"))) \
+ static struct trace_eval_map __used \
+ __attribute__((section("_ftrace_eval_map"))) \
+ *TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
+
+#undef TRACE_DEFINE_SIZEOF
+#define TRACE_DEFINE_SIZEOF(a) \
+ static struct trace_eval_map __used __initdata \
+ __##TRACE_SYSTEM##_##a = \
+ { \
+ .system = TRACE_SYSTEM_STRING, \
+ .eval_string = "sizeof(" #a ")", \
+ .eval_value = sizeof(a) \
+ }; \
+ static struct trace_eval_map __used \
+ __attribute__((section("_ftrace_eval_map"))) \
*TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
/*
@@ -158,6 +171,9 @@ TRACE_MAKE_SYSTEM_STR();
#undef TRACE_DEFINE_ENUM
#define TRACE_DEFINE_ENUM(a)
+#undef TRACE_DEFINE_SIZEOF
+#define TRACE_DEFINE_SIZEOF(a)
+
#undef __field
#define __field(type, item)
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