Qais Yousef 6939f4ef16 trace: bpf: Allow bpf to attach to bare tracepoints ... Some subsystems only have bare tracepoints (a tracepoint with no associated trace event) to avoid the problem of trace events being an ABI that can't be changed. >From bpf presepective, bare tracepoints are what it calls RAW_TRACEPOINT(). Since bpf assumed there's 1:1 mapping, it relied on hooking to DEFINE_EVENT() macro to create bpf mapping of the tracepoints. Since bare tracepoints use DECLARE_TRACE() to create the tracepoint, bpf had no knowledge about their existence. By teaching bpf_probe.h to parse DECLARE_TRACE() in a similar fashion to DEFINE_EVENT(), bpf can find and attach to the new raw tracepoints. Enabling that comes with the contract that changes to raw tracepoints don't constitute a regression if they break existing bpf programs. We need the ability to continue to morph and modify these raw tracepoints without worrying about any ABI. Update Documentation/bpf/bpf_design_QA.rst to document this contract. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210119122237.2426878-2-qais.yousef@arm.com		2021-01-20 14:13:59 -08:00
..
ABI	More power management updates for 5.11-rc1	2020-12-22 14:12:10 -08:00
accounting
admin-guide	xen: branch for v5.11-rc4	2021-01-15 10:52:00 -08:00
arm	ARM updates for 5.11:	2020-12-22 13:34:27 -08:00
arm64	ARM:	2020-12-20 10:44:05 -08:00
block
bpf	trace: bpf: Allow bpf to attach to bare tracepoints	2021-01-20 14:13:59 -08:00
cdrom
core-api	atomic: remove further references to atomic_ops	2020-12-31 15:51:33 -07:00
cpu-freq
crypto
dev-tools	Merge branch 'akpm' (patches from Andrew)	2020-12-22 13:38:17 -08:00
devicetree	dt-binding: net: ti: k3-am654-cpsw-nuss: update bindings for am64x cpsw3g	2021-01-19 17:32:34 -08:00
doc-guide	Documentation: doc-guide: fixes to sphinx.rst	2020-12-31 15:49:51 -07:00
driver-api	RTC for 5.11	2020-12-20 10:12:06 -08:00
fault-injection
fb
features	ARM updates for 5.11:	2020-12-22 13:34:27 -08:00
filesystems	Various bug fixes and cleanups for ext4; no new features this cycle.	2020-12-24 14:16:02 -08:00
firmware_class
firmware-guide	Documentation: ACPI: EINJ: Fix error type values for PCIe errors	2021-01-14 13:11:25 +01:00
fpga
gpu	drm/docs: Fix todo.rst	2020-11-18 11:51:58 +01:00
hid	Merge branch 'for-5.11/core' into for-linus	2020-12-16 11:38:38 +01:00
hwmon	hwmon: (sbtsi_temp) Fix Documenation kernel-doc warning	2020-12-30 08:05:20 -08:00
i2c
ia64	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
ide
iio
infiniband
input	Input: document inhibiting	2020-12-02 22:10:37 -08:00
isdn
kbuild	Documentation: kbuild: Fix section reference	2021-01-11 05:14:38 +09:00
kernel-hacking	docs: Fix reST markup when linking to sections	2020-12-31 15:44:47 -07:00
leds	Changes for 5.11-rc1. Small cleanups/fixes mostly thanks to Marek,	2020-12-16 14:56:29 -08:00
litmus-tests
livepatch
locking	Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g	2020-12-09 17:08:49 +01:00
m68k	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
maintainer
mhi
mips	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
misc-devices	Documentation: remove mic/index from misc-devices/index.rst	2020-11-04 11:38:32 +01:00
netlabel
networking	docs, bpf: Add minimal markup to address doc warning	2021-01-20 14:10:35 -08:00
nios2	docs: nios2: add missing ReST file	2020-12-07 08:35:21 -07:00
nvdimm
openrisc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
parisc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
PCI
pcmcia
power	PM: EM: Update Energy Model with new flag indicating power scale	2020-11-10 20:29:28 +01:00
powerpc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
process	docs: remove mention of ENABLE_MUST_CHECK	2021-01-07 14:41:38 -07:00
RCU	docs: Fix reST markup when linking to sections	2020-12-31 15:44:47 -07:00
riscv	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
s390	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
scheduler	Power management updates for 5.11-rc1	2020-12-15 16:30:31 -08:00
scsi
security
sh	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
sound	sound fixes for 5.11-rc4	2021-01-13 11:55:14 -08:00
sparc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
sphinx	Kbuild updates for v5.11	2020-12-22 14:02:39 -08:00
sphinx-static
spi
staging
target	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
timers
trace	Kbuild updates for v5.11	2020-12-22 14:02:39 -08:00
translations	Networking updates for 5.11	2020-12-15 13:22:29 -08:00
usb
userspace-api	"Intel SGX is new hardware functionality that can be used by	2020-12-14 13:14:57 -08:00
virt	KVM/arm64 fixes for 5.11, take #1	2021-01-08 05:02:40 -05:00
vm	mm/lru: revise the comments of lru_lock	2020-12-15 14:48:04 -08:00
w1	w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'	2020-11-12 08:50:13 +01:00
watchdog
x86	A much quieter cycle for documentation (happily), with, one hopes, the bulk	2020-12-14 16:55:54 -08:00
xtensa	A much quieter cycle for documentation (happily), with, one hopes, the bulk	2020-12-14 16:55:54 -08:00
.gitignore
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py	docs: Note that sphinx 1.7 will be required soon	2020-12-11 13:53:38 -07:00
COPYING-logo
docutils.conf
dontdiff
index.rst	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
Kconfig	docs: Kconfig/Makefile: add a check for broken ABI files	2020-10-30 13:08:07 +01:00
logo.gif
Makefile	A small number of fixes, plus a build tweak to respect the desire for	2020-11-03 09:57:30 -08:00
memory-barriers.txt	docs/memory-barriers.txt: Fix a typo in CPU MEMORY BARRIERS section	2020-11-06 17:24:51 -08:00
SubmittingPatches
watch_queue.rst