Viktor Malik 903fad4394 tools/resolve_btfids: Fix cross-compilation to non-host endianness ... The .BTF_ids section is pre-filled with zeroed BTF ID entries during the build and afterwards patched by resolve_btfids with correct values. Since resolve_btfids always writes in host-native endianness, it relies on libelf to do the translation when the target ELF is cross-compiled to a different endianness (this was introduced in commit 61e8aeda93 ("bpf: Fix libelf endian handling in resolv_btfids")). Unfortunately, the translation will corrupt the flags fields of SET8 entries because these were written during vmlinux compilation and are in the correct endianness already. This will lead to numerous selftests failures such as: $ sudo ./test_verifier 502 502 #502/p sleepable fentry accept FAIL Failed to load prog 'Invalid argument'! bpf_fentry_test1 is not sleepable verification time 34 usec stack depth 0 processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 Summary: 0 PASSED, 0 SKIPPED, 1 FAILED Since it's not possible to instruct libelf to translate just certain values, let's manually bswap the flags (both global and entry flags) in resolve_btfids when needed, so that libelf then translates everything correctly. Fixes: ef2c6f370a ("tools/resolve_btfids: Add support for 8-byte BTF sets") Signed-off-by: Viktor Malik <vmalik@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/7b6bff690919555574ce0f13d2a5996cacf7bf69.1707223196.git.vmalik@redhat.com		2024-02-07 15:56:18 -08:00
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accounting
arch	- Add synthetic X86_FEATURE flags for the different AMD Zen generations	2024-01-08 15:45:31 -08:00
bootconfig
bpf	tools/resolve_btfids: Fix cross-compilation to non-host endianness	2024-02-07 15:56:18 -08:00
build
certs
cgroup
counter	tools/counter: Remove unneeded semicolon	2023-12-20 11:43:31 -05:00
crypto	crypto: tcrypt - add script tcrypt_speed_compare.py	2023-12-29 11:25:55 +08:00
debugging
edid
firewire
firmware
gpio
hv
iio
include	tools/resolve_btfids: Refactor set sorting with types from btf_ids.h	2024-02-07 15:56:18 -08:00
kvm/kvm_stat
laptop
leds
lib	libbpf: Use OPTS_SET() macro in bpf_xdp_query()	2024-02-06 09:51:26 -08:00
memory-model
mm
net/ynl
objtool	Address a GCC-14 warning: there's no real bug, but indeed the calloc order doesn't match	2024-01-08 18:31:27 -08:00
pci
pcmcia
perf	perf tools improvements and fixes for v6.8:	2024-01-19 14:25:23 -08:00
power
rcu
scripts
spi
testing	bpf: Use -Wno-address-of-packed-member in some selftests	2024-02-06 09:40:25 -08:00
thermal	tools/thermal/tmon: Fix compilation warning for wrong format	2024-01-02 09:33:19 +01:00
time
tracing
usb
verification
virtio
wmi
workqueue
Makefile