Kumar Kartikeya Dwivedi aaa619ebcc bpf: Refactor check_btf_func and split into two phases ... This patch splits the check_btf_info's check_btf_func check into two separate phases. The first phase sets up the BTF and prepares func_info, but does not perform any validation of required invariants for subprogs just yet. This is left to the second phase, which happens where check_btf_info executes currently, and performs the line_info and CO-RE relocation. The reason to perform this split is to obtain the userspace supplied func_info information before we perform the add_subprog call, where we would now require finding and adding subprogs that may not have a bpf_pseudo_call or bpf_pseudo_func instruction in the program. We require this as we want to enable userspace to supply exception callbacks that can override the default hidden subprogram generated by the verifier (which performs a hardcoded action). In such a case, the exception callback may never be referenced in an instruction, but will still be suitably annotated (by way of BTF declaration tags). For finding this exception callback, we would require the program's BTF information, and the supplied func_info information which maps BTF type IDs to subprograms. Since the exception callback won't actually be referenced through instructions, later checks in check_cfg and do_check_subprogs will not verify the subprog. This means that add_subprog needs to add them in the add_subprog_and_kfunc phase before we move forward, which is why the BTF and func_info are required at that point. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20230912233214.1518551-6-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2023-09-16 09:34:21 -07:00
..
bpf	bpf: Refactor check_btf_func and split into two phases	2023-09-16 09:34:21 -07:00
cgroup	cgroup: fix build when CGROUP_SCHED is not enabled	2023-09-02 08:27:17 -07:00
configs	Kbuild updates for v6.6	2023-09-05 11:01:47 -07:00
debug	printk changes for 6.6	2023-09-04 13:20:19 -07:00
dma	swiotlb: optimize get_max_slots()	2023-08-08 10:29:21 -07:00
entry	entry: Remove empty addr_limit_user_check()	2023-08-23 10:32:39 +02:00
events	powerpc updates for 6.6	2023-08-31 12:43:10 -07:00
futex	mm/mm_init.c: remove obsolete macro HASH_SMALL	2023-08-18 10:12:07 -07:00
gcov	gcov: shut up missing prototype warnings for internal stubs	2023-08-18 10:18:58 -07:00
irq	Boring updates for the interrupt subsystem:	2023-08-28 14:33:11 -07:00
kcsan	kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures	2023-06-09 23:29:50 +10:00
livepatch	livepatch: Make 'klp_stack_entries' static	2023-06-05 13:56:52 +02:00
locking	- An extensive rework of kexec and crash Kconfig from Eric DeVolder	2023-08-29 14:53:51 -07:00
module	module/decompress: use vmalloc() for zstd decompression workspace	2023-08-29 09:39:08 -07:00
power	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
printk	printk changes for 6.6	2023-09-04 13:20:19 -07:00
rcu	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
sched	sched/fair: Make update_entity_lag() static	2023-08-29 21:05:28 +02:00
time	Fix false positive "softirq work is pending" messages on -rt	2023-09-02 09:01:48 -07:00
trace	Probes updates for v6.6:	2023-09-02 11:10:50 -07:00
.gitignore
acct.c	audit/stable-6.6 PR 20230829	2023-08-30 08:17:35 -07:00
async.c
audit_fsnotify.c
audit_tree.c
audit_watch.c	audit_init_parent(): constify path	2022-09-01 17:39:30 -04:00
audit.c	audit: move trailing statements to next line	2023-08-15 18:16:14 -04:00
audit.h	audit: correct audit_filter_inodes() definition	2023-07-21 12:17:25 -04:00
auditfilter.c	audit: move trailing statements to next line	2023-08-15 18:16:14 -04:00
auditsc.c	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
backtracetest.c
bounds.c	mm: multi-gen LRU: minimal implementation	2022-09-26 19:46:09 -07:00
capability.c	lsm: constify the 'target' parameter in security_capget()	2023-08-08 16:48:47 -04:00
cfi.c	cfi: Switch to -fsanitize=kcfi	2022-09-26 10:13:13 -07:00
compat.c	sched_getaffinity: don't assume 'cpumask_size()' is fully initialized	2023-03-14 19:32:38 -07:00
configs.c
context_tracking.c	locking/atomic: treewide: use raw_atomic*_<op>()	2023-06-05 09:57:20 +02:00
cpu_pm.c	cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()	2023-01-13 11:48:15 +01:00
cpu.c	cpu/hotplug: Prevent self deadlock on CPU hot-unplug	2023-08-30 12:24:22 +02:00
crash_core.c	- An extensive rework of kexec and crash Kconfig from Eric DeVolder	2023-08-29 14:53:51 -07:00
crash_dump.c
cred.c	cred: convert printks to pr_<level>	2023-08-18 10:18:49 -07:00
delayacct.c	delayacct: track delays from IRQ/SOFTIRQ	2023-04-18 16:39:34 -07:00
dma.c
exec_domain.c
exit.c	fork, vhost: Use CLONE_THREAD to fix freezer/ps regression	2023-06-01 17:15:33 -04:00
extable.c
fail_function.c	kernel/fail_function: fix memory leak with using debugfs_lookup()	2023-02-08 13:36:22 +01:00
fork.c	percpu: changes for v6.6	2023-09-01 15:44:45 -07:00
freezer.c	freezer,sched: Rewrite core freezer logic	2022-09-07 21:53:50 +02:00
gen_kheaders.sh	Revert "kheaders: substituting --sort in archive creation"	2023-05-28 16:20:21 +09:00
groups.c
hung_task.c	kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static	2023-04-08 13:45:37 -07:00
iomem.c	kernel/iomem.c: remove __weak ioremap_cache helper	2023-08-21 13:37:28 -07:00
irq_work.c	trace: Add trace_ipi_send_cpu()	2023-03-24 11:01:29 +01:00
jump_label.c	jump_label: Prevent key->enabled int overflow	2022-12-01 15:53:05 -08:00
kallsyms_internal.h	kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]	2022-11-12 18:47:36 -08:00
kallsyms_selftest.c	Modules changes for v6.6-rc1	2023-08-29 17:32:32 -07:00
kallsyms_selftest.h	kallsyms: Add self-test facility	2022-11-15 00:42:02 -08:00
kallsyms.c	kallsyms: Change func signature for cleanup_symbol_name()	2023-08-25 15:00:36 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.kexec	crash: hotplug support for kexec_load()	2023-08-24 16:25:14 -07:00
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: add prototypes for helper functions	2023-06-09 17:44:17 -07:00
kexec_core.c	crash: add generic infrastructure for crash hotplug support	2023-08-24 16:25:13 -07:00
kexec_elf.c
kexec_file.c	integrity-v6.6	2023-08-30 09:16:56 -07:00
kexec_internal.h	panic, kexec: make __crash_kexec() NMI safe	2022-09-11 21:55:06 -07:00
kexec.c	crash: hotplug support for kexec_load()	2023-08-24 16:25:14 -07:00
kheaders.c	kheaders: Use array declaration instead of char	2023-03-24 20:10:59 -07:00
kprobes.c	kernel: kprobes: Use struct_size()	2023-08-23 09:38:17 +09:00
ksyms_common.c	kallsyms: make kallsyms_show_value() as generic function	2023-06-08 12:27:20 -07:00
ksysfs.c	crash: hotplug support for kexec_load()	2023-08-24 16:25:14 -07:00
kthread.c	kthread: unexport __kthread_should_park()	2023-08-18 10:18:59 -07:00
latencytop.c	latencytop: use the last element of latency_record of system	2022-09-11 21:55:12 -07:00
Makefile	v6.5-rc1-modules-next	2023-06-28 15:51:08 -07:00
module_signature.c
notifier.c	notifiers: add tracepoints to the notifiers infrastructure	2023-04-08 13:45:38 -07:00
nsproxy.c	nsproxy: Convert nsproxy.count to refcount_t	2023-08-21 11:29:12 -07:00
padata.c	padata: use alignment when calculating the number of worker threads	2023-03-14 17:06:44 +08:00
panic.c	mm: remove arguments of show_mem()	2023-08-18 10:12:02 -07:00
params.c	kernel: params: Remove unnecessary ‘0’ values from err	2023-07-10 12:47:01 -07:00
pid_namespace.c	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-08-21 13:37:59 -07:00
pid_sysctl.h	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-08-21 13:37:59 -07:00
pid.c	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-08-21 13:37:59 -07:00
profile.c	kernel/profile.c: simplify duplicated code in profile_setup()	2022-09-11 21:55:12 -07:00
ptrace.c	ptrace: Provide set/get interface for syscall user dispatch	2023-04-16 14:23:07 +02:00
range.c
reboot.c	kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode	2022-10-04 15:59:36 +02:00
regset.c
relay.c	kernel: relay: remove unnecessary NULL values from relay_open_buf	2023-08-18 10:18:55 -07:00
resource_kunit.c
resource.c	dax/kmem: Fix leak of memory-hotplug resources	2023-02-17 14:58:01 -08:00
rseq.c	rseq: Extend struct rseq with per-memory-map concurrency ID	2022-12-27 12:52:12 +01:00
scftorture.c	scftorture: Pause testing after memory-allocation failure	2023-07-14 15:02:57 -07:00
scs.c	scs: add support for dynamic shadow call stacks	2022-11-09 18:06:35 +00:00
seccomp.c	seccomp: Add missing kerndoc notations	2023-08-17 12:32:15 -07:00
signal.c	signal: print comm and exe name on fatal signals	2023-08-18 10:18:50 -07:00
smp.c	smp: Reduce NMI traffic from CSD waiters to CSD destination	2023-07-10 14:19:04 -07:00
smpboot.c	cpu/hotplug: Remove unused state functions	2023-05-15 13:45:00 +02:00
smpboot.h
softirq.c	sched/core: introduce sched_core_idle_cpu()	2023-07-13 15:21:50 +02:00
stackleak.c	stackleak: allow to specify arch specific stackleak poison function	2023-04-20 11:36:35 +02:00
stacktrace.c
static_call_inline.c	static_call: Add call depth tracking support	2022-10-17 16:41:16 +02:00
static_call.c
stop_machine.c
sys_ni.c	x86/shstk: Introduce map_shadow_stack syscall	2023-08-02 15:01:51 -07:00
sys.c	prctl: move PR_GET_AUXV out of PR_MCE_KILL	2023-07-17 12:53:21 -07:00
sysctl-test.c	kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred}	2022-09-08 16:56:45 -07:00
sysctl.c	v6.5-rc1-sysctl-next	2023-06-28 16:05:21 -07:00
task_work.c	task_work: use try_cmpxchg in task_work_add, task_work_cancel_match and task_work_run	2022-09-11 21:55:10 -07:00
taskstats.c	genetlink: start to validate reserved header bytes	2022-08-29 12:47:15 +01:00
torture.c	torture: Stop right-shifting torture_random() return values	2023-08-14 15:01:08 -07:00
tracepoint.c	tracepoint: Allow livepatch module add trace event	2023-02-18 14:34:36 -05:00
tsacct.c
ucount.c	sysctl: Add size to register_sysctl	2023-08-15 15:26:17 -07:00
uid16.c
uid16.h
umh.c	sysctl: fix unused proc_cap_handler() function warning	2023-06-29 15:19:43 -07:00
up.c
user_namespace.c	userns: fix a struct's kernel-doc notation	2023-02-02 22:50:04 -08:00
user-return-notifier.c
user.c	kernel/user: Allow user_struct::locked_vm to be usable for iommufd	2022-11-30 20:16:49 -04:00
usermode_driver.c
utsname_sysctl.c	utsname: simplify one-level sysctl registration for uts_kern_table	2023-04-13 11:49:35 -07:00
utsname.c
vhost_task.c	vhost: Fix worker hangs due to missed wake up calls	2023-06-08 15:43:09 -04:00
watch_queue.c	watch_queue: prevent dangling pipe pointer	2023-06-06 10:47:04 +02:00
watchdog_buddy.c	watchdog/hardlockup: move SMP barriers from common code to buddy code	2023-06-19 16:25:28 -07:00
watchdog_perf.c	watchdog/perf: add a weak function for an arch to detect if perf can use NMIs	2023-06-09 17:44:21 -07:00
watchdog.c	watchdog/hardlockup: avoid large stack frames in watchdog_hardlockup_check()	2023-08-18 10:19:00 -07:00
workqueue_internal.h	workqueue: Drop the special locking rule for worker->flags and worker_pool->flags	2023-08-07 15:57:22 -10:00
workqueue.c	workqueue: fix data race with the pwq->stats[] increment	2023-08-29 09:52:16 -10:00