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| Filename | Latest commit message | Latest commit date |
|---|---|---|
3be8c5caa5
[ Upstream commit 18e21eb671dc87a4f0546ba505a89ea93598a634 ]
Fix 'perf probe --line' option to show inlined function callsite lines
even if the function DIE has only ranges.
Without this:
# perf probe -L amd_put_event_constraints
...
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
__amd_put_nb_event_constraints(cpuc, event);
5 }
With this patch:
# perf probe -L amd_put_event_constraints
...
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
4 __amd_put_nb_event_constraints(cpuc, event);
5 }
Committer testing:
Before:
[root@quaco ~]# perf probe -L amd_put_event_constraints
<amd_put_event_constraints@/usr/src/debug/kernel-5.2.fc30/linux-5.2.18-200.fc30.x86_64/arch/x86/events/amd/core.c:0>
0 static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
struct perf_event *event)
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
__amd_put_nb_event_constraints(cpuc, event);
5 }
PMU_FORMAT_ATTR(event, "config:0-7,32-35");
PMU_FORMAT_ATTR(umask, "config:8-15" );
[root@quaco ~]#
After:
[root@quaco ~]# perf probe -L amd_put_event_constraints
<amd_put_event_constraints@/usr/src/debug/kernel-5.2.fc30/linux-5.2.18-200.fc30.x86_64/arch/x86/events/amd/core.c:0>
0 static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
struct perf_event *event)
2 {
3 if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
4 __amd_put_nb_event_constraints(cpuc, event);
5 }
PMU_FORMAT_ATTR(event, "config:0-7,32-35");
PMU_FORMAT_ATTR(umask, "config:8-15" );
[root@quaco ~]# perf probe amd_put_event_constraints:4
Added new event:
probe:amd_put_event_constraints (on amd_put_event_constraints:4)
You can now use it in all perf tools, such as:
perf record -e probe:amd_put_event_constraints -aR sleep 1
[root@quaco ~]#
[root@quaco ~]# perf probe -l
probe:amd_put_event_constraints (on amd_put_event_constraints:4@arch/x86/events/amd/core.c)
probe:clear_tasks_mm_cpumask (on clear_tasks_mm_cpumask@kernel/cpu.c)
[root@quaco ~]#
Using it:
[root@quaco ~]# perf trace -e probe:*
^C[root@quaco ~]#
Ok, Intel system here... :-)
Fixes:
|
||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.