Josh Poimboeuf e55a73251d bpf: Fix ORC unwinding in non-JIT BPF code ...

Objtool previously ignored ___bpf_prog_run() because it didn't understand
the jump table.  This resulted in the ORC unwinder not being able to unwind
through non-JIT BPF code.

Now that objtool knows how to read jump tables, remove the whitelist and
annotate the jump table so objtool can recognize it.

Also add an additional "const" to the jump table definition to clarify that
the text pointers are constant.  Otherwise GCC sets the section writable
flag and the assembler spits out warnings.

Fixes: d15d356887 ("perf/x86: Make perf callchains work without CONFIG_FRAME_POINTER")
Reported-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kairui Song <kasong@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lkml.kernel.org/r/881939122b88f32be4c374d248c09d7527a87e35.1561685471.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2019-07-09 13:55:57 +02:00

..

arraymap.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

bpf_lru_list.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

bpf_lru_list.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

btf.c

bpf: allow for key-less BTF in array map

2019-04-09 17:05:46 -07:00

cgroup.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 451

2019-06-19 17:09:08 +02:00

core.c

bpf: Fix ORC unwinding in non-JIT BPF code

2019-07-09 13:55:57 +02:00

cpumap.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 363

2019-06-05 17:37:09 +02:00

devmap.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-06-17 15:55:34 -07:00

disasm.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

disasm.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

hashtab.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

helpers.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

inode.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

local_storage.c

bpf: add program side {rd, wr}only support for maps

2019-04-09 17:05:46 -07:00

lpm_trie.c

Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

2019-06-21 09:58:42 -07:00

Makefile

bpf: add queue and stack maps

2018-10-19 13:24:31 -07:00

map_in_map.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

map_in_map.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

offload.c

bpf: offload: add priv field for drivers

2019-02-12 17:07:09 +01:00

percpu_freelist.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

percpu_freelist.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

queue_stack_maps.c

bpf: add program side {rd, wr}only support for maps

2019-04-09 17:05:46 -07:00

reuseport_array.c

bpf: Introduce BPF_MAP_TYPE_REUSEPORT_SOCKARRAY

2018-08-11 01:58:46 +02:00

stackmap.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

syscall.c

Merge branch 'timers/vdso' into timers/core

2019-07-03 10:50:21 +02:00

tnum.c

treewide: Add SPDX license identifier for missed files

2019-05-21 10:50:45 +02:00

verifier.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-06-17 15:55:34 -07:00

xskmap.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2018-10-19 11:03:06 -07:00