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linux/kernel/trace
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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
tracing: Define MCOUNT_INSN_SIZE when not defined without direct calls
2020-01-02 21:56:44 -05:00
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
tracing: Add kprobe event command generation test module
2020-01-30 09:46:28 -05:00
Makefile
Rebase locking/kcsan to locking/urgent
2020-06-11 20:02:46 +02:00
power-traces.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
tracing: Make struct ring_buffer less ambiguous
2020-01-13 13:19:38 -05:00
ring_buffer.c
ring-buffer: Remove all BUG() calls
2020-05-14 08:51:02 -04:00
rpm-traces.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: Use pr_warn instead of pr_warning
2019-10-18 15:01:57 +02:00
trace_benchmark.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_boot.c
tracing/boottime: Fix kprobe event API usage
2020-05-06 09:04:11 -04:00
trace_branch.c
tracing: Make struct ring_buffer less ambiguous
2020-01-13 13:19:38 -05:00
trace_clock.c
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
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
Merge branch 'perf/urgent' into perf/core, to pick up fixes
2019-10-28 12:38:26 +01:00
trace_events_filter_test.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_events_filter.c
tracing: Avoid memory leak in process_system_preds()
2019-12-19 18:24:17 -05:00
trace_events_hist.c
tracing: Move synthetic events to a separate file
2020-06-01 08:23:22 -04:00
trace_events_inject.c
tracing: Initialize val to zero in parse_entry of inject code
2020-01-02 19:04:57 -05:00
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
Linux 5.5-rc1
2019-12-10 10:11:00 +01:00
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
tracing: Rename trace_buffer to array_buffer
2020-01-13 13:19:38 -05:00
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
tracing: Rename trace_buffer to array_buffer
2020-01-13 13:19:38 -05:00
trace_kdb.c
tracing: Rename trace_buffer to array_buffer
2020-01-13 13:19:38 -05:00
trace_kprobe_selftest.c
selftest/ftrace: Move kprobe selftest function to separate compile unit
2018-07-30 18:41:04 -04:00
trace_kprobe_selftest.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
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
tracing: Make struct ring_buffer less ambiguous
2020-01-13 13:19:38 -05:00
trace_nop.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_preemptirq.c
x86/entry: Rename trace_hardirqs_off_prepare()
2020-06-11 15:15:24 +02:00
trace_printk.c
tracing: Add locked_down checks to the open calls of files created for tracefs
2019-10-12 20:48:06 -04:00
trace_probe_tmpl.h
tracing/probe: Support user-space dereference
2019-05-25 23:04:42 -04:00
trace_probe.c
tracing/probe: reverse arguments to list_add
2020-05-19 21:10:50 -04:00
trace_probe.h
tracing/uprobe: Fix to make trace_uprobe_filter alignment safe
2020-01-22 07:09:20 -05:00
trace_sched_switch.c
tracing: Fix sched switch start/stop refcount racy updates
2020-01-30 09:46:10 -05:00
trace_sched_wakeup.c
tracing: Make struct ring_buffer less ambiguous
2020-01-13 13:19:38 -05:00
trace_selftest_dynamic.c
ftrace: Mark function tracer test functions noinline/noclone
2018-01-23 15:57:29 -05:00
trace_selftest.c
tracing: Rename trace_buffer to array_buffer
2020-01-13 13:19:38 -05:00
trace_seq.c
tracing: Remove unused TRACE_SEQ_BUF_USED
2020-01-21 18:39:54 -05:00
trace_stack.c
trace: fix an incorrect __user annotation on stack_trace_sysctl
2020-06-08 10:13:56 -04:00
trace_stat.c
tracing: Fix tracing_stat return values in error handling paths
2020-01-24 18:06:48 -05:00
trace_stat.h
tracing: Use generic type for comparator function
2019-11-14 13:15:11 -05:00
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
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00