linux/kernel/trace
Adrian Hunter fc0ea795f5 ftrace: Add symbols for ftrace trampolines
Symbols are needed for tools to describe instruction addresses. Pages
allocated for ftrace's purposes need symbols to be created for them.
Add such symbols to be visible via /proc/kallsyms.

Example on x86 with CONFIG_DYNAMIC_FTRACE=y

	# echo function > /sys/kernel/debug/tracing/current_tracer
	# cat /proc/kallsyms | grep '\[__builtin__ftrace\]'
	ffffffffc0238000 t ftrace_trampoline    [__builtin__ftrace]

Note: This patch adds "__builtin__ftrace" as a module name in /proc/kallsyms for
symbols for pages allocated for ftrace's purposes, even though "__builtin__ftrace"
is not a module.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200512121922.8997-7-adrian.hunter@intel.com
2020-06-15 14:09:49 +02:00
..
blktrace.c blktrace: fix endianness for blk_log_remap() 2020-06-04 21:23:38 -06:00
bpf_trace.c maccess: always use strict semantics for probe_kernel_read 2020-06-09 09:39:15 -07:00
fgraph.c
ftrace_internal.h x86/ftrace: Have ftrace trampolines turn read-only at the end of system boot up 2020-05-12 18:24:34 -04:00
ftrace.c ftrace: Add symbols for ftrace trampolines 2020-06-15 14:09:49 +02:00
Kconfig Tracing updates for 5.8: 2020-06-09 10:06:18 -07:00
kprobe_event_gen_test.c
Makefile Rebase locking/kcsan to locking/urgent 2020-06-11 20:02:46 +02:00
power-traces.c
preemptirq_delay_test.c tracing: Wait for preempt irq delay thread to execute 2020-05-11 17:00:34 -04:00
ring_buffer_benchmark.c
ring_buffer.c ring-buffer: Remove all BUG() calls 2020-05-14 08:51:02 -04:00
rpm-traces.c
synth_event_gen_test.c tracing: Have synthetic event test use raw_smp_processor_id() 2020-02-20 17:43:41 -05:00
trace_benchmark.c
trace_benchmark.h
trace_boot.c tracing/boottime: Fix kprobe event API usage 2020-05-06 09:04:11 -04:00
trace_branch.c
trace_clock.c
trace_dynevent.c tracing: Use seq_buf for building dynevent_cmd string 2020-02-01 13:10:15 -05:00
trace_dynevent.h tracing: Remove check_arg() callbacks from dynevent args 2020-02-01 13:09:23 -05:00
trace_entries.h tracing: Have hwlat ts be first instance and record count of instances 2020-03-03 17:33:43 -05:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c
trace_events_hist.c tracing: Move synthetic events to a separate file 2020-06-01 08:23:22 -04:00
trace_events_inject.c
trace_events_synth.c tracing: Move synthetic events to a separate file 2020-06-01 08:23:22 -04:00
trace_events_trigger.c tracing: Fix the race between registering 'snapshot' event trigger and triggering 'snapshot' operation 2020-04-14 22:02:10 -04:00
trace_events.c tracing: Add hist_debug trace event files for histogram debugging 2020-06-01 08:22:30 -04:00
trace_export.c
trace_functions_graph.c ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance() 2020-03-19 19:11:19 -04:00
trace_functions.c
trace_hwlat.c tracing: Have hwlat ts be first instance and record count of instances 2020-03-03 17:33:43 -05:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
trace_mmiotrace.c
trace_nop.c
trace_output.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
trace_output.h
trace_preemptirq.c x86/entry: Rename trace_hardirqs_off_prepare() 2020-06-11 15:15:24 +02:00
trace_printk.c
trace_probe_tmpl.h
trace_probe.c tracing/probe: reverse arguments to list_add 2020-05-19 21:10:50 -04:00
trace_probe.h
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest_dynamic.c
trace_selftest.c
trace_seq.c
trace_stack.c trace: fix an incorrect __user annotation on stack_trace_sysctl 2020-06-08 10:13:56 -04:00
trace_stat.c
trace_stat.h
trace_synth.h tracing: Move synthetic events to a separate file 2020-06-01 08:23:22 -04:00
trace_syscalls.c Tracing updates: 2020-02-06 07:12:11 +00:00
trace_uprobe.c tracing/probe: Fix bpf_task_fd_query() for kprobes and uprobes 2020-06-09 11:10:12 -07:00
trace.c Tracing updates for 5.8: 2020-06-09 10:06:18 -07:00
trace.h tracing: Add hist_debug trace event files for histogram debugging 2020-06-01 08:22:30 -04:00
tracing_map.c tracing: Convert local functions in tracing_map.c to static 2020-04-22 22:07:26 -04:00
tracing_map.h