Marco Elver c82389947d tracing: Add sched_prepare_exec tracepoint ... Add "sched_prepare_exec" tracepoint, which is run right after the point of no return but before the current task assumes its new exec identity. Unlike the tracepoint "sched_process_exec", the "sched_prepare_exec" tracepoint runs before flushing the old exec, i.e. while the task still has the original state (such as original MM), but when the new exec either succeeds or crashes (but never returns to the original exec). Being able to trace this event can be helpful in a number of use cases: * allowing tracing eBPF programs access to the original MM on exec, before current->mm is replaced; * counting exec in the original task (via perf event); * profiling flush time ("sched_prepare_exec" to "sched_process_exec"). Example of tracing output: $ cat /sys/kernel/debug/tracing/trace_pipe <...>-379 [003] ..... 179.626921: sched_prepare_exec: interp=/usr/bin/sshd filename=/usr/bin/sshd pid=379 comm=sshd <...>-381 [002] ..... 180.048580: sched_prepare_exec: interp=/bin/bash filename=/bin/bash pid=381 comm=sshd <...>-385 [001] ..... 180.068277: sched_prepare_exec: interp=/usr/bin/tty filename=/usr/bin/tty pid=385 comm=bash <...>-389 [006] ..... 192.020147: sched_prepare_exec: interp=/usr/bin/dmesg filename=/usr/bin/dmesg pid=389 comm=bash Signed-off-by: Marco Elver <elver@google.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20240411102158.1272267-1-elver@google.com Signed-off-by: Kees Cook <keescook@chromium.org>		2024-04-11 09:02:21 -07:00
..
9p.h	9p: prevent read overrun in protocol dump tracepoint	2023-12-05 21:18:44 +09:00
afs.h	vfs-6.9.file	2024-03-11 10:37:45 -07:00
alarmtimer.h
asoc.h	ASoC: trace: add event to snd_soc_dapm trace events	2024-03-06 14:03:27 +00:00
avc.h
bcache.h
block.h	fs: add CONFIG_BUFFER_HEAD	2023-08-02 09:13:09 -06:00
bpf_test_run.h
bridge.h	net: bridge: Add a tracepoint for MDB overflows	2023-02-06 08:48:25 +00:00
btrfs.h	btrfs: use the flags of an extent map to identify the compression type	2023-12-15 22:59:02 +01:00
cachefiles.h	fscache,cachefiles: add prepare_ondemand_read() callback	2022-12-07 10:56:29 +08:00
cgroup.h
clk.h	clk: Add trace events for rate requests	2022-12-07 13:54:09 -08:00
cma.h	trace: cma: remove unnecessary event class cma_alloc_class	2023-04-05 19:42:58 -07:00
compaction.h	mm: compaction: update the cc->nr_migratepages when allocating or freeing the freepages	2024-02-22 10:24:50 -08:00
context_tracking.h
cpuhp.h
csd.h	smp: Change function signatures to use call_single_data_t	2023-09-13 14:59:24 +02:00
damon.h	mm/damon/core: use nr_accesses_bp as a source of damos_before_apply tracepoint	2023-10-04 10:32:31 -07:00
devfreq.h
devlink.h	devlink: Fix TP_STRUCT_entry in trace of devlink health report	2023-02-15 19:15:44 -08:00
dlm.h	fs: dlm: add plock dev tracepoints	2023-08-10 10:33:03 -05:00
dma_fence.h
erofs.h	erofs: adapt folios for z_erofs_read_folio()	2023-08-23 23:47:33 +08:00
error_report.h
ext4.h	ext4: remove 'needed' in trace_ext4_discard_preallocations	2024-01-18 10:52:45 -05:00
f2fs.h	f2fs: add tracepoint for f2fs_vm_page_mkwrite()	2023-12-11 13:37:53 -08:00
fib.h	net: Replace strlcpy with strscpy	2023-07-04 19:40:16 +01:00
fib6.h	net: Replace strlcpy with strscpy	2023-07-04 19:40:16 +01:00
filelock.h	filelock: split leases out of struct file_lock	2024-02-05 13:11:44 +01:00
filemap.h
fs_dax.h
fscache.h	fscache: Fix oops due to race with cookie_lru and use_cookie	2022-12-07 11:49:18 -08:00
fsi_master_aspeed.h
fsi_master_ast_cf.h
fsi_master_gpio.h
fsi_master_i2cr.h	fsi: Add IBM I2C Responder virtual FSI master	2023-08-11 13:32:14 +09:30
fsi.h	fsi: core: Add trace events for scan and unregister	2023-08-09 15:43:28 +09:30
gpio.h
gpu_mem.h
habanalabs.h	accel/habanalabs: minor cosmetics update to trace file	2023-10-09 12:37:23 +03:00
handshake.h	net/handshake: Trace events for TLS Alert helpers	2023-07-28 14:07:59 -07:00
host1x.h
huge_memory.h	mm/khugepaged: skip shmem with userfaultfd	2023-04-18 16:29:52 -07:00
hwmon.h
i2c_slave.h
i2c.h
ib_mad.h	IB/mad: Don't call to function that might sleep while in atomic context	2022-11-10 10:57:15 +02:00
ib_umad.h
initcall.h
intel_ifs.h	platform/x86/intel/ifs: Add current batch number to trace output	2024-01-31 11:57:27 +02:00
intel_ish.h
intel-sst.h
io_uring.h	io_uring: remove 'loops' argument from trace_io_uring_task_work_run()	2024-02-08 13:27:06 -07:00
iocost.h	blk-iocost: Trace vtime_base_rate instead of vtime_rate	2022-12-01 07:44:12 -07:00
iommu.h	iommu: Remove detach_dev callback	2023-01-13 16:39:18 +01:00
ipi.h	trace: Add trace_ipi_send_cpu()	2023-03-24 11:01:29 +01:00
irq_matrix.h
irq.h	softirq: Add trace points for tasklet entry/exit	2023-04-15 10:17:16 +02:00
iscsi.h
jbd2.h	jbd2: remove journal_clean_one_cp_list()	2023-07-10 23:09:21 -04:00
kmem.h	mm: add alloc_contig_migrate_range allocation statistics	2024-03-04 17:01:27 -08:00
ksm.h	mm/ksm: add tracepoint for ksm advisor	2023-12-29 11:58:27 -08:00
kvm.h	KVM: remove CONFIG_HAVE_KVM_IRQFD	2023-12-08 15:43:33 -05:00
kyber.h	kyber: Replace strlcpy with strscpy	2023-07-17 08:18:17 -06:00
libata.h
lock.h
maple_tree.h	Maple Tree: add new data structure	2022-09-26 19:46:13 -07:00
mce.h
mctp.h
mdio.h
migrate.h	mm/migrate: add nr_split to trace_mm_migrate_pages stats.	2023-10-25 16:47:13 -07:00
mlxsw.h
mmap_lock.h
mmap.h	mm: mmap: remove newline at the end of the trace	2023-03-23 17:18:36 -07:00
mmc.h
mmflags.h	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
module.h
mptcp.h	net: implement lockless SO_MAX_PACING_RATE	2023-10-01 19:09:54 +01:00
napi.h	net: dqs: add NIC stall detector based on BQL	2024-03-08 10:23:26 +00:00
nbd.h
neigh.h	neighbor: tracing: Move pin6 inside CONFIG_IPV6=y section	2023-10-18 11:16:43 +01:00
net_probe_common.h
net.h	net: fix net_dev_start_xmit trace event vs skb_transport_offset()	2023-07-03 09:13:23 +01:00
netfs.h	netfs: Implement a write-through caching option	2023-12-28 09:45:27 +00:00
netlink.h
nilfs2.h
nmi.h
notifier.h	notifiers: add tracepoints to the notifiers infrastructure	2023-04-08 13:45:38 -07:00
objagg.h
oom.h	mm: update mark_victim tracepoints fields	2024-03-04 17:01:16 -08:00
osnoise.h
page_isolation.h
page_pool.h	page_pool: split types and declarations from page_pool.h	2023-08-07 13:05:19 -07:00
page_ref.h
pagemap.h
percpu.h
power_cpu_migrate.h
power.h
preemptirq.h
printk.h
pwc.h
pwm.h	pwm/tracing: Also record trace events for failed API calls	2022-12-06 12:46:23 +01:00
qdisc.h	tracing/net_sched: Fix tracepoints that save qdisc_dev() as a string	2024-03-04 09:35:54 +00:00
qla.h
qrtr.h	net: qrtr: correct types of trace event parameters	2023-04-04 18:58:43 -07:00
rcu.h	RCU Changes for 6.4:	2023-04-24 12:16:14 -07:00
rdma_core.h
regulator.h
rpcgss.h	SUNRPC: Record gss_wrap() errors in svcauth_gss_wrap_priv()	2023-02-20 09:20:25 -05:00
rpcrdma.h	svcrdma: Move write_info for Reply chunks into struct svc_rdma_send_ctxt	2024-03-01 09:12:28 -05:00
rpm.h	PM: runtime: add tracepoint for runtime_status changes	2024-02-22 20:27:39 +01:00
rseq.h	tracing/rseq: Add mm_cid field to rseq_update	2022-12-27 12:52:15 +01:00
rtc.h
rv.h
rwmmio.h	asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info	2022-11-21 22:02:10 +01:00
rxrpc.h	rxrpc: Use ktimes for call timeout tracking and set the timer lazily	2024-03-05 23:35:25 +00:00
sched.h	tracing: Add sched_prepare_exec tracepoint	2024-04-11 09:02:21 -07:00
scmi.h	include: trace: Add platform and channel instance references	2023-01-20 11:40:57 +00:00
scsi.h	scsi: core: Trace SCSI sense data	2023-05-31 11:05:34 -04:00
sctp.h
signal.h
siox.h
skb.h	net: add location to trace_consume_skb()	2023-02-20 08:28:49 +00:00
smbus.h
sock.h	inet: preserve const qualifier in inet_sk()	2023-03-17 08:56:37 +00:00
sof_intel.h	ASoC: SOF: Intel: replace dev_vdbg with tracepoints	2022-09-19 15:44:06 +01:00
sof.h	ASoC: SOF: replace ipc4-loader dev_vdbg with tracepoints	2022-09-19 15:44:08 +01:00
spi.h	spi: Fix spelling typos and acronyms capitalization	2023-07-11 14:14:32 +01:00
spmi.h
sunrpc.h	Tracing updates for 6.9:	2024-03-18 15:11:44 -07:00
sunvnet.h
swiotlb.h
syscalls.h
target.h
task.h	tracing: Replace strlcpy with strscpy in trace/events/task.h	2023-09-01 21:00:00 -04:00
tcp.h	tcp: Add skb addr and sock addr to arguments of tracepoint tcp_probe.	2024-03-08 10:25:47 +00:00
tegra_apb_dma.h
thermal_pressure.h
thp.h	powerpc/book3s64/mm: enable transparent pud hugepage	2023-08-18 10:12:55 -07:00
timer_migration.h	timer_migration: Add tracepoints	2024-02-22 17:52:32 +01:00
timer.h	tracing/timers: Add tracepoint for tracking timer base is_idle flag	2023-12-20 16:49:38 +01:00
tlb.h
udp.h
ufs.h	scsi: ufs: core: Include the SCSI ID in UFS command tracing output	2023-09-13 20:44:59 -04:00
v4l2.h
vb2.h
vmalloc.h	mm: vmalloc: add free_vmap_area_noflush trace event	2022-11-08 17:37:17 -08:00
vmscan.h	mm, vmscan: remove ISOLATE_UNMAPPED	2023-10-04 10:32:29 -07:00
vsock_virtio_transport_common.h	vsock/virtio: MSG_ZEROCOPY flag support	2023-09-21 12:34:00 +02:00
watchdog.h	watchdog: Add tracing events for the most usual watchdog events	2022-10-12 09:47:02 +02:00
wbt.h	blk-wbt: Replace strlcpy with strscpy	2023-07-17 08:18:17 -06:00
workqueue.h
writeback.h	writeback: fix dereferencing NULL mapping->host on writeback_page_template	2023-06-19 13:19:31 -07:00
xdp.h	net: invert the netdevice.h vs xdp.h dependency	2023-08-03 08:38:07 -07:00
xen.h	x86/xen: move paravirt lazy code	2023-09-19 07:04:49 +02:00