Mathieu Desnoyers [Mon, 13 Apr 2020 20:34:30 +0000 (16:34 -0400)]
instrumentation: skb: remove unused version.h include
Mathieu Desnoyers [Mon, 13 Apr 2020 20:34:08 +0000 (16:34 -0400)]
instrumentation: signal: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:33:23 +0000 (16:33 -0400)]
instrumentation: scsi: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:32:41 +0000 (16:32 -0400)]
instrumentation: sched: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:30:49 +0000 (16:30 -0400)]
instrumentation: rpc: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:29:14 +0000 (16:29 -0400)]
instrumentation: regmap: remove unused include version.h
Mathieu Desnoyers [Mon, 13 Apr 2020 20:28:50 +0000 (16:28 -0400)]
instrumentation: rcu: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:23:57 +0000 (16:23 -0400)]
instrumentation: random: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:23:32 +0000 (16:23 -0400)]
instrumentation: printk: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:23:05 +0000 (16:23 -0400)]
instrumentation: preemptirq: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:21:59 +0000 (16:21 -0400)]
instrumentation: power: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:18:35 +0000 (16:18 -0400)]
instrumentation: net: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:17:44 +0000 (16:17 -0400)]
instrumentation: napi: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:17:12 +0000 (16:17 -0400)]
instrumentation: module: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:16:45 +0000 (16:16 -0400)]
instrumentation: mm_vmscan: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:14:34 +0000 (16:14 -0400)]
instrumentation: lttng-test.h: remove unused include version.h
Mathieu Desnoyers [Mon, 13 Apr 2020 20:14:15 +0000 (16:14 -0400)]
instrumentation: lttng-statedump: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:13:10 +0000 (16:13 -0400)]
instrumentation: kvm: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:11:45 +0000 (16:11 -0400)]
instrumentation: kmem: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:07:41 +0000 (16:07 -0400)]
instrumentation: jbd: remove deprecated probe
Mathieu Desnoyers [Mon, 13 Apr 2020 20:06:58 +0000 (16:06 -0400)]
instrumentation: jbd2: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:05:45 +0000 (16:05 -0400)]
instrumentation: ext3: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 20:00:50 +0000 (16:00 -0400)]
instrumentation: remove deprecated ext3 probe
Mathieu Desnoyers [Mon, 13 Apr 2020 19:58:51 +0000 (15:58 -0400)]
instrumentation: compaction: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 19:57:54 +0000 (15:57 -0400)]
instrumentation: btrfs: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 19:51:53 +0000 (15:51 -0400)]
instrumentation: block: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 19:48:23 +0000 (15:48 -0400)]
instrumentation: remove asoc probe
Mathieu Desnoyers [Mon, 13 Apr 2020 19:47:26 +0000 (15:47 -0400)]
instrumentation: 9p: remove compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 19:43:49 +0000 (15:43 -0400)]
instrumentation: syscalls: remove backward compatibility for older kernels
Mathieu Desnoyers [Mon, 13 Apr 2020 19:41:00 +0000 (15:41 -0400)]
wrapper: user_namespace.h: remove backward compatibility code
Mathieu Desnoyers [Mon, 13 Apr 2020 19:37:48 +0000 (15:37 -0400)]
wrapper: remove list wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 19:26:36 +0000 (15:26 -0400)]
wrapper: remove kallsyms wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 19:25:58 +0000 (15:25 -0400)]
wrapper: remove inline_memcpy.h
Mathieu Desnoyers [Mon, 13 Apr 2020 19:20:57 +0000 (15:20 -0400)]
wrapper: compiler.h: remove READ_ONCE/WRITE_ONCE wrappers
Mathieu Desnoyers [Mon, 13 Apr 2020 19:19:25 +0000 (15:19 -0400)]
wrapper: remove atomic.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 19:13:06 +0000 (15:13 -0400)]
callstack context: use GPL-exported symbols
Mathieu Desnoyers [Mon, 13 Apr 2020 18:51:23 +0000 (14:51 -0400)]
wrapper: remove genhd wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:48:32 +0000 (14:48 -0400)]
wrapper: remove task prio wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:46:22 +0000 (14:46 -0400)]
wrapper: remove namespace.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:42:50 +0000 (14:42 -0400)]
wrapper: remove page_alloc wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:40:18 +0000 (14:40 -0400)]
wrapper: remove perf wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:38:51 +0000 (14:38 -0400)]
Fix: wrapper random documentation
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 18:35:58 +0000 (14:35 -0400)]
wrapper: remove syscall wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:31:50 +0000 (14:31 -0400)]
wrapper: remove timer wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:27:55 +0000 (14:27 -0400)]
wrapper: remove uprobes wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:26:24 +0000 (14:26 -0400)]
wrapper: remove types.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:24:16 +0000 (14:24 -0400)]
wrapper: remove percpu-defs.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:22:27 +0000 (14:22 -0400)]
wrapper: remove mm.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:18:51 +0000 (14:18 -0400)]
wrapper: remove frame.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:14:41 +0000 (14:14 -0400)]
wrapper: remove file.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:10:19 +0000 (14:10 -0400)]
wrapper: remove irq wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 18:08:04 +0000 (14:08 -0400)]
wrapper: remove poll wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:49:11 +0000 (12:49 -0400)]
wrapper: remove kref_get wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:39:24 +0000 (12:39 -0400)]
wrapper: remove tracepoint wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:34:46 +0000 (12:34 -0400)]
wrapper: remove lttng_access_ok() wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:32:17 +0000 (12:32 -0400)]
wrapper: remove time.h wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:31:00 +0000 (12:31 -0400)]
wrapper: remove writeback wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:26:59 +0000 (12:26 -0400)]
wrapper: remove fdtable wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:23:25 +0000 (12:23 -0400)]
wrapper: remove splice_to_pipe wrapper
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 16:20:27 +0000 (12:20 -0400)]
wrapper: Remove irqdesc wrapper
Mathieu Desnoyers [Mon, 13 Apr 2020 16:18:36 +0000 (12:18 -0400)]
Fix: add missing wrapper include to lttng-context-callstack.c
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 15:09:13 +0000 (11:09 -0400)]
wrapper: remove vmalloc_sync_all
Mathieu Desnoyers [Mon, 13 Apr 2020 16:16:43 +0000 (12:16 -0400)]
Use guid_gen for kernels >= 5.7.0
** note: removes backward compatibility. **
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 16:13:39 +0000 (12:13 -0400)]
Update writeback instrumentation for kernel >= 5.7.0
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 16:06:05 +0000 (12:06 -0400)]
Update x86 kvm instrumentation for kernel >= 5.7.0
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 15:44:23 +0000 (11:44 -0400)]
instrumentation: update x86 kvm instrumentation for kernel >= 5.7.0
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 13 Apr 2020 15:38:48 +0000 (11:38 -0400)]
instrumentation: update mm_vmscan for kernel >= 5.7.0
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 7 Apr 2020 17:07:54 +0000 (13:07 -0400)]
tracepoint: Refactor representation of nested types
Refactor enumeration, sequence, array, structure, and variant types.
Implement internal data structures to support nested types.
All probe providers using ctf_enum(), ctf_array*() and ctf_sequence*()
are switched to this new internal type representation.
Each of sequence, array, struct and variant gain a "alignment" property,
which is a feature which was needed in lttng-modules to express
alignment for an array or sequence of bits.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 6 Apr 2020 16:00:47 +0000 (12:00 -0400)]
wrapper/compiler.h: Implement __LTTNG_COMPOUND_LITERAL
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michael Jeanson [Tue, 31 Mar 2020 18:29:29 +0000 (14:29 -0400)]
Update to SPDX v3.0 identifiers
The short form of GPL-2.0 and LGPL-2.1 were deprecated in favour of the
clearer GPL-2.0-only and GPL-2.0-or-later in the SPDX license list v3.0.
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: If2337f5c67a2548d7f25043e67006211213cbe3e
Michael Jeanson [Thu, 2 Apr 2020 18:08:36 +0000 (14:08 -0400)]
fix: uaccess wrapper for CentOS >= 4.18.0-147
Fixes: #1253
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I2a79c1c0e897a6148e60e5599949cd2778d09d50
Michael Jeanson [Thu, 2 Apr 2020 18:08:09 +0000 (14:08 -0400)]
fix: ext4 instrumentation for CentOS >= 4.18.0-147
Fixes: #1253
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I1fd54af16fbb02cd4b3ab7fc7d9232708088f1fd
Michael Jeanson [Thu, 2 Apr 2020 18:07:47 +0000 (14:07 -0400)]
fix: signal instrumentation for CentOS >= 4.18.0-147
Fixes: #1253
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I280013402df6f14222fbb912cdf64d80af3ab265
Michael Jeanson [Thu, 2 Apr 2020 18:07:21 +0000 (14:07 -0400)]
fix: kvm instrumentation for CentOS >= 4.18.0-147
Fixes: #1253
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Ide20ebf51bec503866ffc96dda3e0b09ebeb14d6
Michael Jeanson [Thu, 2 Apr 2020 18:06:17 +0000 (14:06 -0400)]
fix: rcu instrumentation for CentOS >= 4.18.0-80
Fixes: #1253
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I1735d2caa7215ce94272aaaa98cbbc8f3a10743d
Michael Jeanson [Mon, 30 Mar 2020 21:43:16 +0000 (17:43 -0400)]
Fix: update kvm instrumentation for Ubuntu 5.3.0-45
This commit introduced in 5.3.0-43 was dropped in 5.3.0-45 and reintroduced
in 5.3.0-46:
commit
795f8a34f279e17c279bba46da10f15c5dd00264
Author: Sean Christopherson <sean.j.christopherson@intel.com>
Date: Fri Dec 6 15:57:14 2019 -0800
KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit KVM
BugLink: https://bugs.launchpad.net/bugs/1867051
[ Upstream commit
736c291c9f36b07f8889c61764c28edce20e715d ]
Fun times!
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Ia5f1a4ba355f592f09e964038b6334ddb3ad5153
Michael Jeanson [Tue, 24 Mar 2020 18:20:48 +0000 (14:20 -0400)]
Fix: update kvm instrumentation for Ubuntu 5.3.0-43
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I1ce5f9ebba997fcc4cfbae6901eed479e2e1a79e
Mathieu Desnoyers [Tue, 24 Mar 2020 13:42:23 +0000 (09:42 -0400)]
Fix: fcntl enum: only emit F_GETOWNER_UIDS for kernels >= 3.6
It appears in upstream Linux kernel
commit
1d151c337d79 "c/r: fcntl: add F_GETOWNER_UIDS option"
which was first released in v3.6.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Geneviève Bastien [Wed, 11 Mar 2020 16:38:51 +0000 (12:38 -0400)]
syscalls: Make the cmd field of fcntl an enum
The fcntl system call has a cmd parameter which is one of multiple
values defined in the linux/fcntl.h file. This field is now an
enumeration of the various possible values.
Here's an example babeltrace output of the fcntl system call:
[...] syscall_entry_fcntl: { cpu_id = 3 }, { fd = 35,
cmd = ( "F_GETFL" : container = 3 ), arg =
140388746332169 }
Change-Id: I06f511d5dba986aaf01b50057cbe6eac789bbea7
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Geneviève Bastien [Wed, 11 Mar 2020 16:33:04 +0000 (12:33 -0400)]
syscalls: Make the flags and mode fields of open[at] enumerations
The open and openat system call have a flags and mode fields, whose values
are defined in the linux/fcntl.h file. These fields are now
enumerations that can be read as a bit field enum, to make the values more
readable / meaningful.
Here's an example babeltrace output of the open system call:
[...] syscall_entry_openat: { cpu_id = 0 }, { dfd = -100,
filename = "/tmp/edg0_383407",
flags = ( "O_RDWR" | "O_CREAT" | "O_TRUNC" : container = 578 ),
mode = ( "S_IWOTH" | "S_IROTH" | "S_IWGRP" | "S_IRGRP" |
"S_IWUSR" | "S_IRUSR" : container = 438 ) }
Change-Id: Id7a516670b03e52fc75f9ff3c6ba8114c61a3865
Signed-off-by: Geneviève Bastien <gbastien@versatic.net>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michael Jeanson [Mon, 23 Mar 2020 18:48:24 +0000 (14:48 -0400)]
Fix: update kvm instrumentation for Ubuntu 4.15.0-92
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Ib367b9a0ce3846f45313906e710a9a6d644e3955
Francis Deslauriers [Fri, 20 Mar 2020 20:23:17 +0000 (16:23 -0400)]
Record event as soon as one filter evaluates to TRUE
This is a tiny optimization but it can reduce tracing cost in cases
where multiple filters are attached to a probe.
Since we want to trace an event if any of its filter expressions
evaluates to TRUE, there is no need to keep on evaluating expressions
once one is found to be TRUE.
Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I6b5b7697869d3e25dc24d38dc39c34ae1d49dcc9
Florian Walbroel via lttng-dev [Tue, 17 Mar 2020 09:03:19 +0000 (10:03 +0100)]
Add UDP and ICMP packet header information to the tracepoint
* UDP transport header
* ICMP transport header
Signed-off-by: Florian Walbroel <walbroel@silexica.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 10 Mar 2020 19:00:29 +0000 (15:00 -0400)]
statedump: introduce file_table_address
Currently the LTTng-modules statedump simply iterates over all processes
in the system and assumes all threads share the same file descriptor
table, which is only true if threads were created with clone
CLONE_FILES.
Directly invoking clone without the CLONE_FILES creates threads which
belong to the same process, but have their own file descriptor table.
Therefore, model-wise, we cannot assume that all threads in a process
have the same fd table content.
Add a new "file_table_address" field to the lttng_statedump_process_state
event, which dumps the address of the thread's struct files_struct
pointer. This pointer is guaranteed to never be re-used while we hold
the RCU read-side lock (so for the entire iteration over
processes/threads).
For the lttng_statedump_file_descriptor event, remove the "pid" field
(which is semantically inaccurate) and add a "file_table_address" field,
which contains the struct files_struct address of the file table
containing the file descriptor.
An optimization is performed to eliminate most duplcated file table
content by skipping file table dump if the same file table address is
encountered consecutively while iterating over a process' threads.
This introduces a semantic change to the statedump fields, and will
therefore be introduced in lttng-modules 2.12 onwards, not backported as
a fix.
Fixes: #1245
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michael Jeanson [Wed, 4 Mar 2020 20:45:18 +0000 (15:45 -0500)]
Remove kernel version from syscall headers name
This will reduce the delta when updating the syscall headers and make it
easier to track the changes.
Add a comment in the headers to track the version they were generated
from.
Change-Id: I939e1ebd8ab18d880ff1394e771982b5491d3b19
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michael Jeanson [Wed, 4 Mar 2020 20:37:11 +0000 (15:37 -0500)]
Add script to automate the syscall extraction process
Change-Id: Ic8e1e62058616f221569e1f5ed2ffb9d54275af5
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michael Jeanson [Wed, 4 Mar 2020 20:21:03 +0000 (15:21 -0500)]
Update lttng-syscalls-extractor for v5.6.0
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I48e4d82484d6edcc7601a40d2f94e5c46ad5184b
Michael Jeanson [Wed, 4 Mar 2020 20:06:41 +0000 (15:06 -0500)]
Add a Makefile for the lttng-syscalls-extractor module
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I0c1cc650d8594ef01b4039bb3d2af94bfddea54d
Michael Jeanson [Fri, 14 Feb 2020 21:38:27 +0000 (16:38 -0500)]
Cleanup: Syscall headers scripts shellcheck warnings
Change-Id: Ia616724d942f43f5fde2186bff28446120b17c43
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 2 Mar 2020 16:26:39 +0000 (11:26 -0500)]
Remove lttng-ftrace integration
The lttng-ftrace integration (LTTNG_KERNEL_FUNCTION instrumentation
type) was unused for a while now. The "function" probing is actually
done with kprobes and kretprobes (LTTNG_KERNEL_KPROBE and
LTTNG_KERNEL_KRETPROBE).
Remove it so a use of kallsyms_lookup_name() can be removed as well.
Note that in the future we could add back this support by using
register_ftrace_function() which is exported to kernel modules, but
considering that we have not been using this code for a while,
just remove the implementation for now.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 2 Mar 2020 16:03:19 +0000 (11:03 -0500)]
Remove dependency on kallsyms for splice_to_pipe (kernel 4.2+)
Upstream commit
2b514574f7e88 "net: af_unix: implement splice for stream
af_unix sockets" exported the "splice_to_pipe" symbol, so use it to
remove a dependency on kallsyms_lookup_name().
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 2 Mar 2020 15:52:54 +0000 (10:52 -0500)]
Remove dependency on kallsyms for irq_to_desc (kernel 3.4+)
Upstream commit
3911ff30f5d "genirq: export handle_edge_irq() and
irq_to_desc()" exported the irq_to_desc symbol, so use it to remove a
dependency on kallsyms_lookup_name().
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 2 Mar 2020 15:40:26 +0000 (10:40 -0500)]
Remove work-around for signed tracepoint module tainting (kernel 3.15+)
Upstream commit
66cc69e34e86a "Fix: module signature vs tracepoints: add
new TAINT_UNSIGNED_MODULE" fixed an issue where the kernel was
considering unsigned modules as tainting the kernel in the same way as a
force-loaded modules, which was causing the tracepoints within those
modules to be hidden.
This fix was merged in kernel 3.15, so there is no use in applying this
work-around starting from that kernel.
This removes a dependency on kallsyms_lookup_name() for the symbol
"tracepoint_module_notify".
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Francis Deslauriers [Fri, 21 Feb 2020 21:59:33 +0000 (16:59 -0500)]
Change integer base to hex for fields representing addresses
It seems more expected to show addresses in hexadecimal.
I applied this to all fields named "ip" or "addr".
I haven't change the `addr` fields in the i2c.h file as I am not aware
of what is the convention when displaying I2C addresses.
Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I6ed00b31e319e1d966ab138471248dcf3d2c7315
Mathieu Desnoyers [Tue, 25 Feb 2020 15:18:11 +0000 (10:18 -0500)]
Fix: rcu: Fix data-race due to atomic_t copy-by-value (5.5.6, 5.4.22)
The following upstream commit has been backported to stable kernels
5.5.6 and 5.4.22:
commit
6cf539a87a61a4fbc43f625267dbcbcf283872ed
Author: Marco Elver <elver@google.com>
Date: Wed Oct 9 17:57:43 2019 +0200
rcu: Fix data-race due to atomic_t copy-by-value
This fixes a data-race where `atomic_t dynticks` is copied by value. The
copy is performed non-atomically, resulting in a data-race if `dynticks`
is updated concurrently.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michael Jeanson [Mon, 24 Feb 2020 20:11:03 +0000 (15:11 -0500)]
fix: y2038: hide timeval/timespec/itimerval/itimerspec types (v5.6)
See upstream commit:
commit
c766d1472c70d25ad475cf56042af1652e792b23
Author: Arnd Bergmann <arnd@arndb.de>
Date: Thu Feb 20 20:03:57 2020 -0800
y2038: hide timeval/timespec/itimerval/itimerspec types
There are no in-kernel users remaining, but there may still be users that
include linux/time.h instead of sys/time.h from user space, so leave the
types available to user space while hiding them from kernel space.
Only the __kernel_old_* versions of these types remain now.
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I986a813ad8b1c753ab1fa07f726b0cc481f049cb
Michael Jeanson [Mon, 24 Feb 2020 19:50:20 +0000 (14:50 -0500)]
fix: use timespec64 on kernels that have it
This fixes v5.6 which has hidden 'struct timespec' from kernel code and
makes 32bit archs y2038 compliant on v3.17 and newer.
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I1daedc4a93cbbebb8f5a1d99c4619cb27f6a9e07
Michael Jeanson [Mon, 24 Feb 2020 20:15:36 +0000 (15:15 -0500)]
fix: move lttng_close_on_exec to proper wrapper
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I330c6d63fc9c1af00c9a9471563d322d036b9a9c
Michael Jeanson [Mon, 24 Feb 2020 16:30:22 +0000 (11:30 -0500)]
fix: 'struct timex' removed upstream (v5.6)
The 'timex' struct was remove in v5.6 and replaced by 2 variants, one
that is y2038 compliant and a compat version for 32bit archs.
Add this temporary fix while we update our syscalls tracepoint headers,
the type of this struct has limited importance since it's only used to
record the adress in the trace.
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Change-Id: I085b22f282db57985f1c3d341e7c0866cb20e3c9
Mathieu Desnoyers [Thu, 20 Feb 2020 15:46:25 +0000 (10:46 -0500)]
Fix: statedump: consistently check task_cred_xxx() return value for NULL
trace_lttng_statedump_process_user_ns() internally checks whether
user_ns is NULL. While this does not appear to be a possible return
value for task_cred_xxx(), err on the safe side and check for NULL here
as well to be consistent with the paranoid behavior of
trace_lttng_statedump_process_user_ns().
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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