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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-16 17:23:55 +08:00
linux-next/tools/include/linux
Peter Zijlstra 9ae1e990f1 perf tools: Remove broken __no_tail_call attribute
The GCC specific __attribute__((optimize)) attribute does not what is
commonly expected and is explicitly recommended against using in
production code by the GCC people.

Unlike what is often expected, it doesn't add to the optimization flags,
but it fully replaces them, loosing any and all optimization flags
provided by the compiler commandline.

The only guaranteed upon means of inhibiting tail-calls is by placing a
volatile asm with side-effects after the call such that the tail-call simply
cannot be done.

Given the original commit wasn't specific on which calls were the problem, this
removal might re-introduce the problem, which can then be re-analyzed and cured
properly.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20201028081123.GT2628@hirez.programming.kicks-ass.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-03 08:32:15 -03:00
..
sched tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
unaligned License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atomic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitmap.h tools bitmap: Implement bitmap_equal() operation at bitmap API 2020-01-06 11:46:04 -03:00
bitops.h bitops: more BITS_TO_* macros 2020-02-04 03:05:26 +00:00
bits.h Raise gcc version requirement to 4.9 2020-07-08 10:48:35 -07:00
btf_ids.h btf: Add BTF_ID_LIST_SINGLE macro 2020-09-21 15:00:40 -07:00
bug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
build_bug.h tools headers: Synchronize linux/bits.h with the kernel sources 2020-04-14 11:40:05 -03:00
compiler-gcc.h perf tools: Remove broken __no_tail_call attribute 2020-11-03 08:32:15 -03:00
compiler.h perf tools: Remove broken __no_tail_call attribute 2020-11-03 08:32:15 -03:00
const.h tools headers: Update linux/vdso.h and grab a copy of vdso/const.h 2020-04-14 08:55:03 -03:00
coresight-pmu.h coresight: etm4x: Add kernel configuration for CONTEXTID 2019-04-25 22:00:16 +02:00
ctype.h tools perf: Move from sane_ctype.h obtained from git to the Linux's original 2019-06-25 21:02:47 -03:00
debug_locks.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
delay.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
err.h docs: fix broken documentation links 2019-06-08 13:42:13 -06:00
export.h tools: Restore export.h 2015-08-25 09:44:22 +02:00
filter.h bpf, selftest: test {rd, wr}only flags and direct value access 2019-04-09 17:05:47 -07:00
ftrace.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
gfp.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
hardirq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hash.h tools/headers: Synchronize kernel ABI headers 2017-11-04 09:27:46 +01:00
hashtable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
interrupt.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
irqflags.h lockdep: Remove lockdep_hardirq{s_enabled,_context}() argument 2020-07-10 12:00:02 +02:00
jhash.h tools/: replace HTTP links with HTTPS ones 2020-08-07 11:33:21 -07:00
kallsyms.h kallsyms/printk: add loglvl to print_ip_sym() 2020-06-09 09:39:10 -07:00
kern_levels.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kernel.h tools headers: Synchronize linux/bits.h with the kernel sources 2020-04-14 11:40:05 -03:00
linkage.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
list.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lockdep.h tools/lib/lockdep: Add dummy task_struct state member 2018-09-10 13:48:24 +02:00
log2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
module.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mutex.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
nmi.h tools/lib/lockdep: Add empty nmi.h 2018-09-10 13:48:23 +02:00
numa.h tools/: replace open encodings for NUMA_NO_NODE 2019-03-05 21:07:14 -08:00
objtool.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
overflow.h tools: bpf: make use of reallocarray 2018-07-11 22:13:34 +02:00
poison.h Drop flex_arrays 2019-03-12 10:04:03 -07:00
proc_fs.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
rbtree_augmented.h docs: Add rbtree documentation to the core-api 2020-04-21 10:29:19 -06:00
rbtree.h docs: Add rbtree documentation to the core-api 2020-04-21 10:29:19 -06:00
rcu.h rcu: Don't return a value from rcu_assign_pointer() 2019-06-13 15:38:34 -07:00
refcount.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ring_buffer.h tools headers: Add missing perf_event.h include 2019-08-22 11:12:36 -03:00
seq_file.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
sizes.h tools: bpftool: add "prog run" subcommand to test-run programs 2019-07-05 23:48:07 +02:00
spinlock.h xarray: Add XArray unconditional store operations 2018-10-21 10:45:57 -04:00
stacktrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
static_call_types.h static_call: Handle tail-calls 2020-09-01 09:58:06 +02:00
string.h tools lib: Fix builds when glibc contains strlcpy() 2020-01-06 11:46:10 -03:00
stringify.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
time64.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
zalloc.h tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00