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Alan Maguire 45251bcfe0 libbpf/btf: Fix string handling to support multi-split BTF 
[ Upstream commit 4e29128a9a ]

libbpf handling of split BTF has been written largely with the
assumption that multiple splits are possible, i.e. split BTF on top of
split BTF on top of base BTF.  One area where this does not quite work
is string handling in split BTF; the start string offset should be the
base BTF string section length + the base BTF string offset.  This
worked in the past because for a single split BTF with base the start
string offset was always 0.

Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250519165935.261614-2-alan.maguire@oracle.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-06-27 11:11:29 +01:00
..
accounting delayacct: track delays from IRQ/SOFTIRQ 2023-04-18 16:39:34 -07:00
arch x86/insn: Fix opcode map (!REX2) superscript tags 2025-06-19 15:31:28 +02:00
bootconfig tools/bootconfig: Fix the wrong format specifier 2025-02-08 09:58:00 +01:00
bpf tools/resolve_btfids: Fix build when cross compiling kernel with clang. 2025-06-19 15:32:33 +02:00
build tools/build: Don't pass test log files to linker 2025-05-29 11:02:08 +02:00
certs tools/certs: Add print-cert-tbs-hash.sh 2022-05-23 18:47:49 +03:00
cgroup proc: rewrite stable_page_flags() 2024-04-25 20:56:15 -07:00
counter tools/counter: Remove unneeded semicolon 2023-12-20 11:43:31 -05:00
crypto crypto: tools/ccp - Remove unused variable 2024-08-30 18:22:30 +08:00
debugging tools: Add new "test" taint to kernel-chktaint 2022-09-07 14:51:12 -06:00
firewire treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
firmware Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
gpio gpio: sloppy-logic-analyzer remove reference to rcu_momentary_dyntick_idle() 2024-12-05 14:01:28 +01:00
hv tools: hv: Fix a complier warning in the fcopy uio daemon 2024-12-27 14:02:15 +01:00
iio tools: iio: rm .*.cmd when make clean 2024-09-05 19:27:13 +01:00
include bpf: Allow pre-ordering for bpf cgroup progs 2025-05-29 11:02:17 +02:00
kvm/kvm_stat tools/kvm_stat: use canonical ftrace path 2023-03-29 06:52:08 -04:00
laptop change email address for Pali Rohár 2020-04-10 15:36:22 -07:00
leds .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
lib libbpf/btf: Fix string handling to support multi-split BTF 2025-06-27 11:11:29 +01:00
memory-model tools/memory-model: simple.txt: Fix stale reference to recipes-pairs.txt 2024-09-13 23:56:44 -07:00
mm tools/mm: fix compile error 2024-11-14 22:43:48 -08:00
net tools: ynl-gen: validate 0 len strings from kernel 2025-05-29 11:03:12 +02:00
objtool objtool/rust: relax slice condition to cover more noreturn Rust functions 2025-06-19 15:32:33 +02:00
pci tools: PCI: Remove unused BILLION macro 2024-09-13 22:37:06 +00:00
pcmcia .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
perf perf callchain: Always populate the addr_location map when adding IP 2025-06-19 15:32:08 +02:00
power tools/power turbostat: Fix AMD package-energy reporting 2025-06-19 15:32:21 +02:00
rcu tools/rcu: Remove RCU Tasks Rude asynchronous APIs from rcu-updaters.sh 2024-07-29 07:39:32 +05:30
sched_ext tools/sched_ext: Add helper to check task migration state 2025-03-22 12:54:28 -07:00
scripts tools: Override makefile ARCH variable if defined, but empty 2024-12-14 20:03:15 +01:00
sound ASoC: dapm-graph: set fill colour of turned on nodes 2025-03-22 12:54:20 -07:00
spi spi: spidev_fdx: Fix the wrong format specifier 2024-09-04 16:50:33 +01:00
testing selftests: net: build net/lib dependency in all target 2025-06-19 15:32:18 +02:00
thermal tools/thermal/tmon: Fix compilation warning for wrong format 2024-01-02 09:33:19 +01:00
time treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
tracing rtla/timerlat_top: Abort event processing on second signal 2025-02-21 14:01:25 +01:00
usb usbip: tools: Fix detach_port() invalid port error path 2024-10-29 04:23:23 +01:00
verification verification/dot2: Improve dot parser robustness 2024-12-14 20:04:03 +01:00
virtio Fix typo in vringh_test.c 2024-11-06 04:40:07 -05:00
wmi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
workqueue workqueue: remove unnecessary import and function in wq_monitor.py 2024-03-25 10:11:32 -10:00
writeback writeback: add wb_monitor.py script to monitor writeback info on bdi 2024-05-05 17:53:51 -07:00
Makefile sched_ext: Add scx_simple and scx_example_qmap example schedulers 2024-06-18 10:09:17 -10:00