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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
linux/tools/lib
James Clark 8988c4b919 perf tools: Fix in-source libperf build
When libperf is built alone in-source, $(OUTPUT) isn't set. This causes
the generated uapi path to resolve to '/../arch' which results in a
permissions error:

  mkdir: cannot create directory '/../arch': Permission denied

Fix it by removing the preceding '/..' which means that it gets
generated either in the tools/lib/perf part of the tree or the OUTPUT
folder. Some other rules that rely on OUTPUT further refine this
conditionally depending on whether it's an in-source or out-of-source
build, but I don't think we need the extra complexity here. And this
rule is slightly different to others because the header is needed by
both libperf and Perf. This is further complicated by the fact that Perf
always passes O=... to libperf even for in source builds, meaning that
OUTPUT isn't set consistently between projects.

Because we're no longer going one level up to try to generate the file
in the tools/ folder, Perf's include rule needs to descend into libperf.
Also fix the clean rule while we're here.

Reported-by: Thorsten Leemhuis <linux@leemhuis.info>
Closes: https://lore.kernel.org/linux-perf-users/7703f88e-ccb7-4c98-9da4-8aad224e780f@leemhuis.info/
Fixes: bfb713ea53 ("perf tools: Fix arm64 build by generating unistd_64.h")
Signed-off-by: James Clark <james.clark@linaro.org>
Tested-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/20250429-james-perf-fix-libperf-in-source-build-v1-1-a1a827ac15e5@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-04-29 12:32:31 -07:00
..
api libapi: Add missing header with NAME_MAX define to io_dir.h 2025-03-13 00:29:36 -07:00
bpf bpf-next-6.15 2025-03-30 12:43:03 -07:00
perf perf tools: Fix in-source libperf build 2025-04-29 12:32:31 -07:00
subcmd perf tools changes for v6.13 2024-11-26 14:54:00 -08:00
symbol tools: Drop nonsensical -O6 2024-09-11 13:08:36 -03:00
thermal tools: Remove redundant quiet setup 2025-02-18 16:27:43 -03:00
argv_split.c
bitmap.c lib/interval_tree: add test case for interval_tree_iter_xxx() helpers 2025-03-17 12:17:00 -07:00
cmdline.c memblock test: fix implicit declaration of function 'memparse' 2024-08-06 08:21:25 +03:00
ctype.c
find_bit.c tools: sync find_bit() implementation 2022-09-21 12:21:44 -07:00
hweight.c
list_sort.c tools/lib/list_sort: remove unnecessary header includes 2024-11-05 17:12:33 -08:00
rbtree.c tools lib rbtree: pick some improvements from the kernel rbtree code 2024-05-08 08:41:27 -07:00
slab.c lib/rbtree: enable userland test suite for rbtree related data structure 2025-03-17 12:17:00 -07:00
str_error_r.c
string.c perf annotate: Add disasm_line__parse() to parse raw instruction for powerpc 2024-07-31 16:12:59 -03:00
vsprintf.c
zalloc.c