Peter Zijlstra aebfd12521 x86/ibt,ftrace: Search for __fentry__ location ...

Currently a lot of ftrace code assumes __fentry__ is at sym+0. However
with Intel IBT enabled the first instruction of a function will most
likely be ENDBR.

Change ftrace_location() to not only return the __fentry__ location
when called for the __fentry__ location, but also when called for the
sym+0 location.

Then audit/update all callsites of this function to consistently use
these new semantics.

Suggested-by: Steven Rostedt <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Acked-by: Josh Poimboeuf <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

2022-03-15 10:32:37 +01:00

..

blktrace.c

blktrace: fix use after free for struct blk_trace

2022-02-28 06:36:33 -07:00

bpf_trace.c

bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.

2021-12-18 13:27:41 -08:00

bpf_trace.h

…

error_report-traces.c

…

fgraph.c

x86/ftrace: Make function graph use ftrace directly

2021-10-20 23:44:43 -04:00

ftrace_internal.h

…

ftrace.c

x86/ibt,ftrace: Search for __fentry__ location

2022-03-15 10:32:37 +01:00

Kconfig

ftrace: Have architectures opt-in for mcount build time sorting

2022-01-27 19:15:44 -05:00

kprobe_event_gen_test.c

…

Makefile

tracing: Place trace_pid_list logic into abstract functions

2021-10-05 17:30:08 -04:00

pid_list.c

tracing: Initialize upper and lower vars in pid_list_refill_irq()

2021-10-07 09:56:38 -04:00

pid_list.h

tracing: Create a sparse bitmask for pid filtering

2021-10-05 17:38:45 -04:00

power-traces.c

…

preemptirq_delay_test.c

…

ring_buffer_benchmark.c

…

ring_buffer.c

ring-buffer: make use of the helper function kthread_run_on_cpu()

2022-01-15 16:30:23 +02:00

rpm-traces.c

…

synth_event_gen_test.c

tracing: Fix various typos in comments

2021-03-23 14:08:18 -04:00

trace_benchmark.c

…

trace_benchmark.h

…

trace_boot.c

tracing: Fix missing trace_boot_init_histograms kstrdup NULL checks

2021-10-26 09:18:10 -04:00

trace_branch.c

…

trace_clock.c

tracing: Do no increment trace_clock_global() by one

2021-06-18 09:10:00 -04:00

trace_dynevent.c

tracing: Disable "other" permission bits in the tracefs files

2021-10-08 18:08:43 -04:00

trace_dynevent.h

tracing: Add DYNAMIC flag for dynamic events

2021-08-18 18:10:32 -04:00

trace_entries.h

trace: Add timerlat tracer

2021-06-25 19:57:24 -04:00

trace_eprobe.c

eprobes: Remove redundant event type information

2022-02-25 12:07:01 -05:00

trace_event_perf.c

tracing: Show size of requested perf buffer

2021-10-27 12:25:09 -04:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Add ustring operation to filtering string pointers

2022-01-14 03:42:24 -05:00

trace_events_hist.c

tracing/histogram: Fix sorting on old "cpu" value

2022-03-01 22:48:30 -05:00

trace_events_inject.c

tracing: Support __rel_loc relative dynamic data location attribute

2021-12-06 15:37:21 -05:00

trace_events_synth.c

Merge tag 'trace-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2022-01-16 10:15:32 +02:00

trace_events_trigger.c

tracing: Uninline trace_trigger_soft_disabled() partly

2022-02-25 12:07:01 -05:00

trace_events.c

tracing: Remove duplicate warnings when calling trace_create_file()

2022-01-13 17:02:42 -05:00

trace_export.c

…

trace_functions_graph.c

tracing: in_irq() cleanup

2021-10-13 18:19:41 -04:00

trace_functions.c

ftrace: disable preemption when recursion locked

2021-10-27 11:21:49 -04:00

trace_hwlat.c

trace/hwlat: make use of the helper function kthread_run_on_cpu()

2022-01-15 16:30:24 +02:00

trace_irqsoff.c

…

trace_kdb.c

kdb: Rename members of struct kdbtab_t

2021-07-27 17:05:06 +01:00

trace_kprobe_selftest.c

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trace_kprobe_selftest.h

…

trace_kprobe.c

tracing: Fix return value of __setup handlers

2022-03-04 13:46:13 -05:00

trace_mmiotrace.c

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trace_nop.c

…

trace_osnoise.c

tracing/osnoise: Force quiescent states while tracing

2022-03-09 11:51:42 -05:00

trace_output.c

tracing: Account bottom half disabled sections.

2022-01-13 16:23:04 -05:00

trace_output.h

…

trace_preemptirq.c

…

trace_printk.c

tracing: Disable "other" permission bits in the tracefs files

2021-10-08 18:08:43 -04:00

trace_probe_tmpl.h

tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs

2021-08-19 09:09:03 -04:00

trace_probe.c

eprobes: Remove redundant event type information

2022-02-25 12:07:01 -05:00

trace_probe.h

eprobes: Remove redundant event type information

2022-02-25 12:07:01 -05:00

trace_recursion_record.c

tracing: Disable "other" permission bits in the tracefs files

2021-10-08 18:08:43 -04:00

trace_sched_switch.c

…

trace_sched_wakeup.c

tracing: Change variable type as bool for clean-up

2021-06-30 09:19:14 -04:00

trace_selftest_dynamic.c

…

trace_selftest.c

tracing: Fix selftest config check for function graph start up test

2022-02-25 21:05:29 -05:00

trace_seq.c

tracing: Fix various typos in comments

2021-03-23 14:08:18 -04:00

trace_stack.c

tracing: Disable "other" permission bits in the tracefs files

2021-10-08 18:08:43 -04:00

trace_stat.c

tracing: Disable "other" permission bits in the tracefs files

2021-10-08 18:08:43 -04:00

trace_stat.h

…

trace_synth.h

tracing: synth events: increase max fields count

2021-09-08 15:29:16 -04:00

trace_syscalls.c

tracing: Have syscall trace events use trace_event_buffer_lock_reserve()

2022-01-13 16:23:05 -05:00

trace_uprobe.c

Merge tag 'trace-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2022-01-16 10:15:32 +02:00

trace.c

tracing: Fix return value of __setup handlers

2022-03-04 13:46:13 -05:00

trace.h

eprobes: Remove redundant event type information

2022-02-25 12:07:01 -05:00

tracing_map.c

tracing: Fix a kmemleak false positive in tracing_map

2021-12-01 21:04:34 -05:00

tracing_map.h

…