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66f69b2197167cb99330c77a550da50f1f597abc
873307 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Masami Hiramatsu
|
66f69b2197 |
perf probe: Support DW_AT_const_value constant value
Support DW_AT_const_value for variable assignment instead of location. Note that this requires ftrace supporting immediate value. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tom Zanussi <tom.zanussi@linux.intel.com> Link: http://lore.kernel.org/lkml/157406476012.24476.16096289871757175775.stgit@devnote2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Masami Hiramatsu
|
72363540c0 |
perf probe: Support multiprobe event
Support multiprobe event if the event is based on function and lines and
kernel supports it. In this case, perf probe creates the first probe
with an event, and tries to append following probes on that event, since
those probes must be on the same source code line.
Before this patch;
# perf probe -a vfs_read:18
Added new events:
probe:vfs_read_L18 (on vfs_read:18)
probe:vfs_read_L18_1 (on vfs_read:18)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_read_L18_1 -aR sleep 1
#
After this patch (on multiprobe supported kernel)
# perf probe -a vfs_read:18
Added new events:
probe:vfs_read_L18 (on vfs_read:18)
probe:vfs_read_L18 (on vfs_read:18)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_read_L18 -aR sleep 1
#
Committer testing:
On a kernel that doesn't support multiprobe events, after this patch:
# uname -a
Linux quaco 5.3.8-200.fc30.x86_64 #1 SMP Tue Oct 29 14:46:22 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
# grep append /sys/kernel/debug/tracing/README
be modified by appending '.descending' or '.ascending' to a
can be modified by appending any of the following modifiers
#
# perf probe -a vfs_read:18
Added new events:
probe:vfs_read_L18 (on vfs_read:18)
probe:vfs_read_L18_1 (on vfs_read:18)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_read_L18_1 -aR sleep 1
# perf probe -l
probe:vfs_read_L18 (on vfs_read:18@fs/read_write.c)
probe:vfs_read_L18_1 (on vfs_read:18@fs/read_write.c)
#
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Link: http://lore.kernel.org/lkml/157406475010.24476.586290752591512351.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Masami Hiramatsu
|
15354d5469 |
perf probe: Generate event name with line number
Generate event name from function name with line number as
<function>_L<line_number>. Note that this is only for the new event
which is defined by the line number of function (except for line 0).
If there is another event on same line, you have to use
"-f" option. In that case, the new event has "_1" suffix.
e.g.
# perf probe -a kernel_read:2
Added new event:
probe:kernel_read_L2 (on kernel_read:2)
You can now use it in all perf tools, such as:
perf record -e probe:kernel_read_L2 -aR sleep 1
But if we omit the line number or 0th line, it will
have no suffix.
# perf probe -a kernel_read:0
Added new event:
probe:kernel_read (on kernel_read)
You can now use it in all perf tools, such as:
perf record -e probe:kernel_read -aR sleep 1
probe:kernel_read (on kernel_read@linux-5.0.0/fs/read_write.c)
probe:kernel_read_L2 (on kernel_read:2@linux-5.0.0/fs/read_write.c)
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Link: http://lore.kernel.org/lkml/157406474026.24476.2828897745502059569.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Masami Hiramatsu
|
499144c83d |
perf probe: Do not show non representive lines by perf-probe -L
Since perf probe -L shows non representive lines, it can be mislead
users where user can put probes. This prevents to show such non
representive lines so that user can understand which lines user can
probe.
# perf probe -L kernel_read
<kernel_read@/build/linux-pvZVvI/linux-5.0.0/fs/read_write.c:0>
0 ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
{
2 mm_segment_t old_fs;
ssize_t result;
old_fs = get_fs();
6 set_fs(get_ds());
/* The cast to a user pointer is valid due to the set_fs() */
8 result = vfs_read(file, (void __user *)buf, count, pos);
9 set_fs(old_fs);
10 return result;
}
EXPORT_SYMBOL(kernel_read);
Committer testing:
Before:
# perf probe -L kernel_read
<kernel_read@/usr/src/debug/kernel-5.3.fc30/linux-5.3.8-200.fc30.x86_64/fs/read_write.c:0>
0 ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
1 {
2 mm_segment_t old_fs;
3 ssize_t result;
5 old_fs = get_fs();
6 set_fs(KERNEL_DS);
/* The cast to a user pointer is valid due to the set_fs() */
8 result = vfs_read(file, (void __user *)buf, count, pos);
9 set_fs(old_fs);
10 return result;
}
EXPORT_SYMBOL(kernel_read);
#
See the 1, 3, 5 lines? They shouldn't be there, after this patch:
# perf probe -L kernel_read
<kernel_read@/usr/src/debug/kernel-5.3.fc30/linux-5.3.8-200.fc30.x86_64/fs/read_write.c:0>
0 ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
{
2 mm_segment_t old_fs;
ssize_t result;
old_fs = get_fs();
6 set_fs(KERNEL_DS);
/* The cast to a user pointer is valid due to the set_fs() */
8 result = vfs_read(file, (void __user *)buf, count, pos);
9 set_fs(old_fs);
10 return result;
}
EXPORT_SYMBOL(kernel_read);
#
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Link: http://lore.kernel.org/lkml/157406473064.24476.2913278267727587314.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Masami Hiramatsu
|
1ae5d88a4e |
perf probe: Verify given line is a representive line
Verify user given probe line is a representive line (which doesn't share
the address with other lines or the line is the least line among the
lines which shares same address), and if not, it shows what is the
representive line.
Without this fix, user can put a probe on the lines which is not a a
representive line. But since this is not a representive line, perf probe
-l shows a representive line number instead of user given line number.
e.g. (put kernel_read:3, but listed as kernel_read:2)
# perf probe -a kernel_read:3
Added new event:
probe:kernel_read (on kernel_read:3)
You can now use it in all perf tools, such as:
perf record -e probe:kernel_read -aR sleep 1
# perf probe -l
probe:kernel_read (on kernel_read:2@linux-5.0.0/fs/read_write.c)
With this fix, perf probe doesn't allow user to put a probe on a
representive line, and tell what is the representive line.
# perf probe -a kernel_read:3
This line is sharing the addrees with other lines.
Please try to probe at kernel_read:2 instead.
Error: Failed to add events.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Link: http://lore.kernel.org/lkml/157406472071.24476.14915451439785001021.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Masami Hiramatsu
|
57f95bf5f8 |
perf probe: Show correct statement line number by perf probe -l
The dwarf_getsrc_die() can return the line which is not a statement nor
the least line number among the lines which shares same address.
This can lead perf probe --list shows incorrect line number for probed
address.
To fix this, this introduces cu_getsrc_die() which returns only a
statement line and which is the least line number (we call it the
representive line for an address), and use it in cu_find_lineinfo().
Also, if the given address is the entry address of a real function,
cu_find_lineinfo() returns the function declared line number instead of
the start line number of the function body.
For example, without this change perf probe -l shows incorrect line as
below.
# perf probe -a kernel_read:2
Added new event:
probe:kernel_read (on kernel_read:2)
You can now use it in all perf tools, such as:
perf record -e probe:kernel_read -aR sleep 1
# perf probe -l
probe:kernel_read (on kernel_read:1@linux-5.0.0/fs/read_write.c)
With this fix, it shows correct line number as below;
# perf probe -l
probe:kernel_read (on kernel_read:2@linux-5.0.0/fs/read_write.c)
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Link: http://lore.kernel.org/lkml/157406471067.24476.17463149618465494448.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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|
Adrian Hunter
|
b980be189c |
x86/insn: Add some Intel instructions to the opcode map
Add to the opcode map the following instructions:
cldemote
tpause
umonitor
umwait
movdiri
movdir64b
enqcmd
enqcmds
encls
enclu
enclv
pconfig
wbnoinvd
For information about the instructions, refer Intel SDM May 2019
(325462-070US) and Intel Architecture Instruction Set Extensions
May 2019 (319433-037).
The instruction decoding can be tested using the perf tools'
"x86 instruction decoder - new instructions" test as folllows:
$ perf test -v "new " 2>&1 | grep -i cldemote
Decoded ok: 0f 1c 00 cldemote (%eax)
Decoded ok: 0f 1c 05 78 56 34 12 cldemote 0x12345678
Decoded ok: 0f 1c 84 c8 78 56 34 12 cldemote 0x12345678(%eax,%ecx,8)
Decoded ok: 0f 1c 00 cldemote (%rax)
Decoded ok: 41 0f 1c 00 cldemote (%r8)
Decoded ok: 0f 1c 04 25 78 56 34 12 cldemote 0x12345678
Decoded ok: 0f 1c 84 c8 78 56 34 12 cldemote 0x12345678(%rax,%rcx,8)
Decoded ok: 41 0f 1c 84 c8 78 56 34 12 cldemote 0x12345678(%r8,%rcx,8)
$ perf test -v "new " 2>&1 | grep -i tpause
Decoded ok: 66 0f ae f3 tpause %ebx
Decoded ok: 66 0f ae f3 tpause %ebx
Decoded ok: 66 41 0f ae f0 tpause %r8d
$ perf test -v "new " 2>&1 | grep -i umonitor
Decoded ok: 67 f3 0f ae f0 umonitor %ax
Decoded ok: f3 0f ae f0 umonitor %eax
Decoded ok: 67 f3 0f ae f0 umonitor %eax
Decoded ok: f3 0f ae f0 umonitor %rax
Decoded ok: 67 f3 41 0f ae f0 umonitor %r8d
$ perf test -v "new " 2>&1 | grep -i umwait
Decoded ok: f2 0f ae f0 umwait %eax
Decoded ok: f2 0f ae f0 umwait %eax
Decoded ok: f2 41 0f ae f0 umwait %r8d
$ perf test -v "new " 2>&1 | grep -i movdiri
Decoded ok: 0f 38 f9 03 movdiri %eax,(%ebx)
Decoded ok: 0f 38 f9 88 78 56 34 12 movdiri %ecx,0x12345678(%eax)
Decoded ok: 48 0f 38 f9 03 movdiri %rax,(%rbx)
Decoded ok: 48 0f 38 f9 88 78 56 34 12 movdiri %rcx,0x12345678(%rax)
$ perf test -v "new " 2>&1 | grep -i movdir64b
Decoded ok: 66 0f 38 f8 18 movdir64b (%eax),%ebx
Decoded ok: 66 0f 38 f8 88 78 56 34 12 movdir64b 0x12345678(%eax),%ecx
Decoded ok: 67 66 0f 38 f8 1c movdir64b (%si),%bx
Decoded ok: 67 66 0f 38 f8 8c 34 12 movdir64b 0x1234(%si),%cx
Decoded ok: 66 0f 38 f8 18 movdir64b (%rax),%rbx
Decoded ok: 66 0f 38 f8 88 78 56 34 12 movdir64b 0x12345678(%rax),%rcx
Decoded ok: 67 66 0f 38 f8 18 movdir64b (%eax),%ebx
Decoded ok: 67 66 0f 38 f8 88 78 56 34 12 movdir64b 0x12345678(%eax),%ecx
$ perf test -v "new " 2>&1 | grep -i enqcmd
Decoded ok: f2 0f 38 f8 18 enqcmd (%eax),%ebx
Decoded ok: f2 0f 38 f8 88 78 56 34 12 enqcmd 0x12345678(%eax),%ecx
Decoded ok: 67 f2 0f 38 f8 1c enqcmd (%si),%bx
Decoded ok: 67 f2 0f 38 f8 8c 34 12 enqcmd 0x1234(%si),%cx
Decoded ok: f3 0f 38 f8 18 enqcmds (%eax),%ebx
Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx
Decoded ok: 67 f3 0f 38 f8 1c enqcmds (%si),%bx
Decoded ok: 67 f3 0f 38 f8 8c 34 12 enqcmds 0x1234(%si),%cx
Decoded ok: f2 0f 38 f8 18 enqcmd (%rax),%rbx
Decoded ok: f2 0f 38 f8 88 78 56 34 12 enqcmd 0x12345678(%rax),%rcx
Decoded ok: 67 f2 0f 38 f8 18 enqcmd (%eax),%ebx
Decoded ok: 67 f2 0f 38 f8 88 78 56 34 12 enqcmd 0x12345678(%eax),%ecx
Decoded ok: f3 0f 38 f8 18 enqcmds (%rax),%rbx
Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%rax),%rcx
Decoded ok: 67 f3 0f 38 f8 18 enqcmds (%eax),%ebx
Decoded ok: 67 f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx
$ perf test -v "new " 2>&1 | grep -i enqcmds
Decoded ok: f3 0f 38 f8 18 enqcmds (%eax),%ebx
Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx
Decoded ok: 67 f3 0f 38 f8 1c enqcmds (%si),%bx
Decoded ok: 67 f3 0f 38 f8 8c 34 12 enqcmds 0x1234(%si),%cx
Decoded ok: f3 0f 38 f8 18 enqcmds (%rax),%rbx
Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%rax),%rcx
Decoded ok: 67 f3 0f 38 f8 18 enqcmds (%eax),%ebx
Decoded ok: 67 f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx
$ perf test -v "new " 2>&1 | grep -i encls
Decoded ok: 0f 01 cf encls
Decoded ok: 0f 01 cf encls
$ perf test -v "new " 2>&1 | grep -i enclu
Decoded ok: 0f 01 d7 enclu
Decoded ok: 0f 01 d7 enclu
$ perf test -v "new " 2>&1 | grep -i enclv
Decoded ok: 0f 01 c0 enclv
Decoded ok: 0f 01 c0 enclv
$ perf test -v "new " 2>&1 | grep -i pconfig
Decoded ok: 0f 01 c5 pconfig
Decoded ok: 0f 01 c5 pconfig
$ perf test -v "new " 2>&1 | grep -i wbnoinvd
Decoded ok: f3 0f 09 wbnoinvd
Decoded ok: f3 0f 09 wbnoinvd
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20191115135447.6519-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Adrian Hunter
|
1e5f015442 |
x86/insn: perf tools: Add some instructions to the new instructions test
Add to the "x86 instruction decoder - new instructions" test the following instructions: cldemote tpause umonitor umwait movdiri movdir64b enqcmd enqcmds encls enclu enclv pconfig wbnoinvd For information about the instructions, refer Intel SDM May 2019 (325462-070US) and Intel Architecture Instruction Set Extensions May 2019 (319433-037). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/20191115135447.6519-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
7624e69465 |
perf map: Move seldom used ->flags field to second cacheline
So we start with:
$ pahole -C map ~/bin/perf
struct map {
union {
struct rb_node rb_node __attribute__((__aligned__(8))); /* 0 24 */
struct list_head node; /* 0 16 */
} __attribute__((__aligned__(8))); /* 0 24 */
u64 start; /* 24 8 */
u64 end; /* 32 8 */
_Bool erange_warned:1; /* 40: 0 1 */
_Bool priv:1; /* 40: 1 1 */
/* XXX 6 bits hole, try to pack */
/* XXX 3 bytes hole, try to pack */
u32 prot; /* 44 4 */
u32 flags; /* 48 4 */
/* XXX 4 bytes hole, try to pack */
u64 pgoff; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
u64 reloc; /* 64 8 */
u32 maj; /* 72 4 */
u32 min; /* 76 4 */
u64 ino; /* 80 8 */
u64 ino_generation; /* 88 8 */
u64 (*map_ip)(struct map *, u64); /* 96 8 */
u64 (*unmap_ip)(struct map *, u64); /* 104 8 */
struct dso * dso; /* 112 8 */
refcount_t refcnt; /* 120 4 */
/* size: 128, cachelines: 2, members: 17 */
/* sum members: 116, holes: 2, sum holes: 7 */
/* sum bitfield members: 2 bits, bit holes: 1, sum bit holes: 6 bits */
/* padding: 4 */
/* forced alignments: 1 */
} __attribute__((__aligned__(8)));
$
and 'flags' is seldom used when printing details about the map or with
the "cacheline" sort order, we can move them it to the second cacheline,
that will allow combining it with 'refcnt', that is only four bytes:
$ pahole -C map ~/bin/perf
struct map {
union {
struct rb_node rb_node __attribute__((__aligned__(8))); /* 0 24 */
struct list_head node; /* 0 16 */
} __attribute__((__aligned__(8))); /* 0 24 */
u64 start; /* 24 8 */
u64 end; /* 32 8 */
_Bool erange_warned:1; /* 40: 0 1 */
_Bool priv:1; /* 40: 1 1 */
/* XXX 6 bits hole, try to pack */
/* XXX 3 bytes hole, try to pack */
u32 prot; /* 44 4 */
u64 pgoff; /* 48 8 */
u64 reloc; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
u32 maj; /* 64 4 */
u32 min; /* 68 4 */
u64 ino; /* 72 8 */
u64 ino_generation; /* 80 8 */
u64 (*map_ip)(struct map *, u64); /* 88 8 */
u64 (*unmap_ip)(struct map *, u64); /* 96 8 */
struct dso * dso; /* 104 8 */
refcount_t refcnt; /* 112 4 */
u32 flags; /* 116 4 */
/* size: 120, cachelines: 2, members: 17 */
/* sum members: 116, holes: 1, sum holes: 3 */
/* sum bitfield members: 2 bits, bit holes: 1, sum bit holes: 6 bits */
/* forced alignments: 1 */
/* last cacheline: 56 bytes */
} __attribute__((__aligned__(8)));
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-2cdw3zlw1mkamaf7nqtdlxfi@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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|
Arnaldo Carvalho de Melo
|
dbc984c961 |
perf map: Use bitmap for booleans
The map->priv and map->erange_warned are seldom used, the first only in
tests/vmlinux-kallsyms.c, the later only when hist_entry__inc_addr_samples()
returns -ERANGE in 'perf top', which are really rare occasions, so make
them a bool bitfield.
This will open up space for other members on the first cacheline.
$ pahole -C map ~/bin/perf
struct map {
union {
struct rb_node rb_node __attribute__((__aligned__(8))); /* 0 24 */
struct list_head node; /* 0 16 */
} __attribute__((__aligned__(8))); /* 0 24 */
u64 start; /* 24 8 */
u64 end; /* 32 8 */
_Bool erange_warned:1; /* 40: 0 1 */
_Bool priv:1; /* 40: 1 1 */
/* XXX 6 bits hole, try to pack */
/* XXX 3 bytes hole, try to pack */
u32 prot; /* 44 4 */
u32 flags; /* 48 4 */
/* XXX 4 bytes hole, try to pack */
u64 pgoff; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
u64 reloc; /* 64 8 */
u32 maj; /* 72 4 */
u32 min; /* 76 4 */
u64 ino; /* 80 8 */
u64 ino_generation; /* 88 8 */
u64 (*map_ip)(struct map *, u64); /* 96 8 */
u64 (*unmap_ip)(struct map *, u64); /* 104 8 */
struct dso * dso; /* 112 8 */
refcount_t refcnt; /* 120 4 */
/* size: 128, cachelines: 2, members: 17 */
/* sum members: 116, holes: 2, sum holes: 7 */
/* sum bitfield members: 2 bits, bit holes: 1, sum bit holes: 6 bits */
/* padding: 4 */
/* forced alignments: 1 */
} __attribute__((__aligned__(8)));
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-g5545pcq4ff0wr17tfb1piqt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Konstantin Khlebnikov
|
10f64581b1 |
libtraceevent: Fix parsing of event %o and %X argument types
Add missing "%o" and "%X". Ext4 events use "%o" for printing i_mode. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Link: http://lore.kernel.org/lkml/157338066113.6548.11461421296091086041.stgit@buzz Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Adrian Hunter
|
aceb98261e |
perf callchain: Fix segfault in thread__resolve_callchain_sample()
Do not dereference 'chain' when it is NULL.
$ perf record -e intel_pt//u -e branch-misses:u uname
$ perf report --itrace=l --branch-history
perf: Segmentation fault
Fixes:
|
||
|
Arnaldo Carvalho de Melo
|
a7c2b572e2 |
perf map_groups: Auto sort maps by name, if needed
There are still lots of lookups by name, even if just when loading
vmlinux, till that code is studied to figure out if its possible to do
away with those map lookup by names, provide a way to sort it using
libc's qsort/bsearch.
Doing it at the first lookup defers the sorting a bit, and as the code
stands now, is never done for user maps, just for the kernel ones.
# perf probe -l
# perf probe -x ~/bin/perf -L __map_groups__find_by_name
<__map_groups__find_by_name@/home/acme/git/perf/tools/perf/util/symbol.c:0>
0 static struct map *__map_groups__find_by_name(struct map_groups *mg, const char *name)
1 {
struct map **mapp;
4 if (mg->maps_by_name == NULL &&
5 map__groups__sort_by_name_from_rbtree(mg))
6 return NULL;
8 mapp = bsearch(name, mg->maps_by_name, mg->nr_maps, sizeof(*mapp), map__strcmp_name);
9 if (mapp)
10 return *mapp;
11 return NULL;
12 }
struct map *map_groups__find_by_name(struct map_groups *mg, const char *name)
{
# perf probe -x ~/bin/perf 'found=__map_groups__find_by_name:10 name:string'
Added new event:
probe_perf:found (on __map_groups__find_by_name:10 in /home/acme/bin/perf with name:string)
You can now use it in all perf tools, such as:
perf record -e probe_perf:found -aR sleep 1
#
# perf probe -x ~/bin/perf -L map_groups__find_by_name
<map_groups__find_by_name@/home/acme/git/perf/tools/perf/util/symbol.c:0>
0 struct map *map_groups__find_by_name(struct map_groups *mg, const char *name)
1 {
2 struct maps *maps = &mg->maps;
struct map *map;
5 down_read(&maps->lock);
7 if (mg->last_search_by_name && strcmp(mg->last_search_by_name->dso->short_name, name) == 0) {
8 map = mg->last_search_by_name;
9 goto out_unlock;
}
/*
* If we have mg->maps_by_name, then the name isn't in the rbtree,
* as mg->maps_by_name mirrors the rbtree when lookups by name are
* made.
*/
16 map = __map_groups__find_by_name(mg, name);
17 if (map || mg->maps_by_name != NULL)
18 goto out_unlock;
/* Fallback to traversing the rbtree... */
21 maps__for_each_entry(maps, map)
22 if (strcmp(map->dso->short_name, name) == 0) {
23 mg->last_search_by_name = map;
24 goto out_unlock;
}
27 map = NULL;
out_unlock:
30 up_read(&maps->lock);
31 return map;
32 }
int dso__load_vmlinux(struct dso *dso, struct map *map,
const char *vmlinux, bool vmlinux_allocated)
# perf probe -x ~/bin/perf 'fallback=map_groups__find_by_name:21 name:string'
Added new events:
probe_perf:fallback (on map_groups__find_by_name:21 in /home/acme/bin/perf with name:string)
probe_perf:fallback_1 (on map_groups__find_by_name:21 in /home/acme/bin/perf with name:string)
You can now use it in all perf tools, such as:
perf record -e probe_perf:fallback_1 -aR sleep 1
#
# perf probe -l
probe_perf:fallback (on map_groups__find_by_name:21@util/symbol.c in /home/acme/bin/perf with name_string)
probe_perf:fallback_1 (on map_groups__find_by_name:21@util/symbol.c in /home/acme/bin/perf with name_string)
probe_perf:found (on __map_groups__find_by_name:10@util/symbol.c in /home/acme/bin/perf with name_string)
#
# perf stat -e probe_perf:*
Now run 'perf top' in another term and then, after a while, stop 'perf stat':
Furthermore, if we ask for interval printing, we can see that that is done just
at the start of the workload:
# perf stat -I1000 -e probe_perf:*
# time counts unit events
1.000319513 0 probe_perf:found
1.000319513 0 probe_perf:fallback_1
1.000319513 0 probe_perf:fallback
2.001868092 23,251 probe_perf:found
2.001868092 0 probe_perf:fallback_1
2.001868092 0 probe_perf:fallback
3.002901597 0 probe_perf:found
3.002901597 0 probe_perf:fallback_1
3.002901597 0 probe_perf:fallback
4.003358591 0 probe_perf:found
4.003358591 0 probe_perf:fallback_1
4.003358591 0 probe_perf:fallback
^C
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-c5lmbyr14x448rcfii7y6t3k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
a94ab91a54 |
perf machine: No need to check if kernel module maps pre-exist
We'only populating maps for kernel modules either from perf.data file PERF_RECORD_MMAP records or when parsing /proc/modules, so there is no need to first look if we already have those module maps in the list, that would mean the kernel has duplicate entries. So ditch one use of looking up maps by name. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-gnzjg2hhuz6jnrw91m35059y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
6e0a9b3dfa |
perf record: No need to process the synthesized MMAP events twice
At the end of a 'perf record' session, by default, we'll process all samples and populate the threads, maps, etc so as to find out which of the DSOs got samples, to reduce the size of the build-id table we'll add to the perf.data headers. But we don't need to process the PERF_RECORD_MMAP events synthesized for the kernel modules, as we have those already via perf_session__create_kernel_maps(), so add mmap/mmap2 handlers that first look at event->header.misc to see if the event is for a user map, bailing out if not. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-mofoxvcx2dryppcw3o689jdd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
f068435d9b |
perf map: No need to adjust the long name of modules
At some point in the past we needed to make sure we would get the long
name of modules and not just what we get from /proc/modules, but that
need, as described in the cset that introduced the adjustment function:
Fixes:
|
||
|
Arnaldo Carvalho de Melo
|
1ae14516cb |
perf map_groups: Add a front end cache for map lookups by name
Lets see if it helps:
First look at the probeable lines for the function that does lookups by
name in a map_groups struct:
# perf probe -x ~/bin/perf -L map_groups__find_by_name
<map_groups__find_by_name@/home/acme/git/perf/tools/perf/util/symbol.c:0>
0 struct map *map_groups__find_by_name(struct map_groups *mg, const char *name)
1 {
2 struct maps *maps = &mg->maps;
struct map *map;
5 down_read(&maps->lock);
7 if (mg->last_search_by_name && strcmp(mg->last_search_by_name->dso->short_name, name) == 0) {
8 map = mg->last_search_by_name;
9 goto out_unlock;
}
12 maps__for_each_entry(maps, map)
13 if (strcmp(map->dso->short_name, name) == 0) {
14 mg->last_search_by_name = map;
15 goto out_unlock;
}
18 map = NULL;
out_unlock:
21 up_read(&maps->lock);
22 return map;
23 }
int dso__load_vmlinux(struct dso *dso, struct map *map,
const char *vmlinux, bool vmlinux_allocated)
#
Now add a probe to the place where we reuse the last search:
# perf probe -x ~/bin/perf map_groups__find_by_name:8
Added new event:
probe_perf:map_groups__find_by_name (on map_groups__find_by_name:8 in /home/acme/bin/perf)
You can now use it in all perf tools, such as:
perf record -e probe_perf:map_groups__find_by_name -aR sleep 1
#
Now lets do a system wide 'perf stat' counting those events:
# perf stat -e probe_perf:*
Leave it running and lets do a 'perf top', then, after a while, stop the
'perf stat':
# perf stat -e probe_perf:*
^C
Performance counter stats for 'system wide':
3,603 probe_perf:map_groups__find_by_name
44.565253139 seconds time elapsed
#
yeah, good to have.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-tcz37g3nxv3tvxw3q90vga3p@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
c5c584d2db |
perf maps: Do not use an rbtree to sort by map name
This is only used for the kernel maps, shave 24 bytes out 'struct map'
and just traverse the existing per ip rbtree to look for maps by name,
use a front end cache to reuse the last search if its the same name.
After this 'struct map' is down to just two cachelines:
$ pahole -C map ~/bin/perf
struct map {
union {
struct rb_node rb_node __attribute__((__aligned__(8))); /* 0 24 */
struct list_head node; /* 0 16 */
} __attribute__((__aligned__(8))); /* 0 24 */
u64 start; /* 24 8 */
u64 end; /* 32 8 */
_Bool erange_warned; /* 40 1 */
/* XXX 3 bytes hole, try to pack */
u32 priv; /* 44 4 */
u32 prot; /* 48 4 */
u32 flags; /* 52 4 */
u64 pgoff; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
u64 reloc; /* 64 8 */
u32 maj; /* 72 4 */
u32 min; /* 76 4 */
u64 ino; /* 80 8 */
u64 ino_generation; /* 88 8 */
u64 (*map_ip)(struct map *, u64); /* 96 8 */
u64 (*unmap_ip)(struct map *, u64); /* 104 8 */
struct dso * dso; /* 112 8 */
refcount_t refcnt; /* 120 4 */
/* size: 128, cachelines: 2, members: 17 */
/* sum members: 121, holes: 1, sum holes: 3 */
/* padding: 4 */
/* forced alignments: 1 */
} __attribute__((__aligned__(8)));
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-bvr8fqfgzxtgnhnwt5sssx5g@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
bcb8af5c46 |
perf maps: Purge the entries from maps->names in __maps__purge()
No need to iterate via the ->names rbtree, as all the entries there
as in maps->entries as well, reuse __maps__purge() for that.
Doing it this way we can kill maps__for_each_entry_by_name(),
maps__for_each_entry_by_name_safe(), maps__{first,next}_by_name().
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-ps0nrio8pydyo23rr2s696ue@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Adrian Hunter
|
af833988c0 |
perf scripts python: exported-sql-viewer.py: Fix use of TRUE with SQLite
Prior to version 3.23 SQLite does not support TRUE or FALSE, so always
use 1 and 0 for SQLite.
Fixes:
|
||
|
James Clark
|
da3ef7f6cd |
perf vendor events power9: Fix commas so PMU event files are valid JSON
No functional change.
Remove extra commas in the power9 JSON files so that the files
can be parsed and validated by other utilities such as Python
that fail to parse invalid JSON.
Before:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/powerpc/power9/cache.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x300
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/floating-point.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x141
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/frontend.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x250
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/marked.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x301
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/memory.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x300
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/other.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x308
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/pipeline.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x4D0
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/pmc.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x200
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power9/translation.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x1E"
(right here) ------^
JSON is invalid
$
After:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/powerpc/power9/cache.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/floating-point.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/frontend.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/marked.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/memory.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/other.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/pipeline.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/pmc.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power9/translation.json
JSON is valid
$
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kevin Mooney <kevin.mooney@arm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Mamatha Inamdar <mamatha4@linux.vnet.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: nd@arm.com
Link: http://lore.kernel.org/lkml/20191112160342.26470-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
James Clark
|
835e5bd909 |
perf vendor events power8: Fix commas so PMU event files are valid JSON
No functional change.
Remove extra commas in the power8 JSON files so that the files
can be parsed and validated by other utilities such as Python
that fail to parse invalid JSON.
Committer testing:
Before:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/powerpc/power8/cache.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x4c0
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/floating-point.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x200
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/frontend.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x250
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/marked.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x351
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/memory.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x100
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/other.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x1f0
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/pipeline.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x100
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/pmc.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x200
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/powerpc/power8/translation.json
parse error: invalid object key (must be a string)
[ {, "EventCode": "0x4c0
(right here) ------^
JSON is invalid
$
After:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/powerpc/power8/cache.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/floating-point.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/frontend.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/marked.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/memory.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/other.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/pipeline.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/pmc.json
JSON is valid
tools/perf/pmu-events/arch/powerpc/power8/translation.json
JSON is valid
$
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kevin Mooney <kevin.mooney@arm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Mamatha Inamdar <mamatha4@linux.vnet.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: nd@arm.com
Link: http://lore.kernel.org/lkml/20191112160342.26470-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
James Clark
|
a44e4f3ab1 |
perf vendor events arm64: Fix commas so PMU event files are valid JSON
No functional change.
Add and remove extra commas in the arm64 JSON files so that the files
can be parsed and validated by other utilities such as Python that fail
to parse invalid JSON.
Committer testing:
Before:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/arm64/ampere/emag/branch.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/bus.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/cache.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/clock.json
parse error: unallowed token at this point in JSON text
[ { "PublicDescrip
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/exception.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/instruction.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/intrinsic.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/memory.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/ampere/emag/pipeline.json
parse error: unallowed token at this point in JSON text
[ { "PublicDescrip
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/branch.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent": "BR
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/bus.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent":
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/other.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent":
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/armv8-recommended.json
parse error: after array element, I expect ',' or ']'
[ { "PublicDescrip
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/cavium/thunderx2/core-imp-def.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/core-imp-def.json
parse error: invalid object key (must be a string)
[ { "ArchStdEvent"
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json
parse error: invalid object key (must be a string)
[ { "EventCode": "0x00
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-hha.json
parse error: invalid object key (must be a string)
[ { "EventCode": "0x00
(right here) ------^
JSON is invalid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-l3c.json
parse error: invalid object key (must be a string)
[ { "EventCode": "0x00
(right here) ------^
JSON is invalid
$
After:
$ diffstat -l -p1 /wb/1.patch | while read filename ; do echo $filename ; cat $filename | json_verify ; done
tools/perf/pmu-events/arch/arm64/ampere/emag/branch.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/bus.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/cache.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/clock.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/exception.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/instruction.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/intrinsic.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/memory.json
JSON is valid
tools/perf/pmu-events/arch/arm64/ampere/emag/pipeline.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/branch.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/bus.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a53/other.json
JSON is valid
tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json
JSON is valid
tools/perf/pmu-events/arch/arm64/armv8-recommended.json
JSON is valid
tools/perf/pmu-events/arch/arm64/cavium/thunderx2/core-imp-def.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/core-imp-def.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-ddrc.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-hha.json
JSON is valid
tools/perf/pmu-events/arch/arm64/hisilicon/hip08/uncore-l3c.json
JSON is valid
$
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kevin Mooney <kevin.mooney@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: nd@arm.com
Link: http://lore.kernel.org/lkml/20191112160342.26470-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Ian Rogers
|
e1e9b78d39 |
perf parse: Use YYABORT to clear stack after failure, plugging leaks
Using return rather than YYABORT means that the stack isn't cleared up following a failure. The change to YYABORT means the return value is 1 rather than -1, but the callers just check for a result of 0 (success). Add missing free of a list when an error occurs in event_pmu. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20191109075840.181231-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ravi Bangoria
|
ccd26741f5 |
perf tool: Provide an option to print perf_event_open args and return value
Perf record with verbose=2 already prints this information along with
whole lot of other traces which requires lot of scrolling. Introduce
an option to print only perf_event_open() arguments and return value.
Sample o/p:
$ perf --debug perf-event-open=1 record -- ls > /dev/null
------------------------------------------------------------
perf_event_attr:
size 112
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|PERIOD
read_format ID
disabled 1
inherit 1
exclude_kernel 1
mmap 1
comm 1
freq 1
enable_on_exec 1
task 1
precise_ip 3
sample_id_all 1
exclude_guest 1
mmap2 1
comm_exec 1
ksymbol 1
bpf_event 1
------------------------------------------------------------
sys_perf_event_open: pid 4308 cpu 0 group_fd -1 flags 0x8 = 4
sys_perf_event_open: pid 4308 cpu 1 group_fd -1 flags 0x8 = 5
sys_perf_event_open: pid 4308 cpu 2 group_fd -1 flags 0x8 = 6
sys_perf_event_open: pid 4308 cpu 3 group_fd -1 flags 0x8 = 8
sys_perf_event_open: pid 4308 cpu 4 group_fd -1 flags 0x8 = 9
sys_perf_event_open: pid 4308 cpu 5 group_fd -1 flags 0x8 = 10
sys_perf_event_open: pid 4308 cpu 6 group_fd -1 flags 0x8 = 11
sys_perf_event_open: pid 4308 cpu 7 group_fd -1 flags 0x8 = 12
------------------------------------------------------------
perf_event_attr:
type 1
size 112
config 0x9
watermark 1
sample_id_all 1
bpf_event 1
{ wakeup_events, wakeup_watermark } 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8
sys_perf_event_open failed, error -13
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (9 samples) ]
Committer notes:
Just like the 'verbose' variable this new 'debug_peo_args' needs to be
added to util/python.c, since we don't link the debug.o file in the
python binding, which ended up making 'perf test python' fail with:
# perf test -v python
18: 'import perf' in python :
--- start ---
test child forked, pid 19237
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /tmp/build/perf/python/perf.so: undefined symbol: debug_peo_args
test child finished with -1
---- end ----
'import perf' in python: FAILED!
#
After adding that new variable to util/python.c:
# perf test -v python
18: 'import perf' in python :
--- start ---
test child forked, pid 22364
test child finished with 0
---- end ----
'import perf' in python: Ok
#
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191108094128.28769-1-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
7b018e2987 |
perf map: Remove ->groups from 'struct map'
With this 'struct map' uses a bit over 3 cachelines: $ pahole -C map ~/bin/perf <SNIP> /* --- cacheline 2 boundary (128 bytes) --- */ u64 (*unmap_ip)(struct map *, u64); /* 128 8 */ struct dso * dso; /* 136 8 */ refcount_t refcnt; /* 144 4 */ /* size: 152, cachelines: 3, members: 18 */ /* sum members: 145, holes: 1, sum holes: 3 */ /* padding: 4 */ /* forced alignments: 2 */ /* last cacheline: 24 bytes */ } __attribute__((__aligned__(8))); $ We probably can move map->map/unmap_ip() moved to 'struct map_groups', that will shave more 16 bytes, getting this almost to two cachelines. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-ymlv3nzpofv2fugnjnizkrwy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
3f662fc08d |
perf map: Combine maps__fixup_overlappings with its only use
In the process we can kill some of the struct map->groups usage, trying to get rid of this per-full struct map fields getting in the way of sharing a map across father/parent processes. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-e50eqtqw3za24vmbjnqmmcs6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
94e44b9ca5 |
perf annotate: Stop using map->groups, use map_symbol->mg instead
These were the last uses of map->groups, next cset will nuke it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-n3g0foos7l7uxq9nar0zo0vj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
08f6680e62 |
perf tools: Add a 'struct map_groups' pointer to 'struct map_symbol'
And fill it whenever we setup a a 'struct map_symbol', now we need to use it, next cset. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-fzwfcnddenz1o7uj1fzw3g46@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
93fcce96c7 |
perf symbols: Use kmaps(map)->machine when we know its a kernel map
And then stop using map->groups to achieve that.
To test that that branch is being taken, probe the function that is only
called from there and then run something like 'perf top' in another
xterm:
# perf probe -x ~/bin/perf machine__map_x86_64_entry_trampolines
Added new event:
probe_perf:machine__map_x86_64_entry_trampolines (on machine__map_x86_64_entry_trampolines in /home/acme/bin/perf)
You can now use it in all perf tools, such as:
perf record -e probe_perf:machine__map_x86_64_entry_trampolines -aR sleep 1
# perf trace -e probe_perf:*
0.000 bash/10614 probe_perf:machine__map_x86_64_entry_trampolines(__probe_ip: 5224944)
^C#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-lgrrzdxo2p9liq2keivcg887@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
d46a4cdf49 |
pref tools: Make 'struct addr_map_symbol' contain 'struct map_symbol'
So that we pass that substructure around and with it consolidate lots of functions that receive a (map, symbol) pair and now can receive just a 'struct map_symbol' pointer. This further paves the way to add 'struct map_groups' to 'struct map_symbol' so that we can have all we need for annotation so that we can ditch 'struct map'->groups, i.e. have the map_groups pointer in a more central place, avoiding the pointer in the 'struct map' that have tons of instances. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-fs90ttd9q12l7989fo7pw81q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
5f0fef8ac3 |
perf callchain: Use 'struct map_symbol' in 'struct callchain_cursor_node'
To ease passing around map+symbol, just like done for other parts of the tree recently. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
c1529738f5 |
perf unwind: Use 'struct map_symbol' in 'struct unwind_entry'
To help in passing that info around to callchain routines that, for the same reason, are moving to use 'struct map_symbol'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-epsiibeprpxa8qpwji47uskc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
2975489458 |
perf annotate: Pass a 'map_symbol' in places receiving a pair of 'map' and 'symbol' pointers
We are already passing things like: symbol__annotate(ms->sym, ms->map, ...) So shorten the signature of such functions to receive the 'map_symbol' pointer. This also paves the way to having the 'struct map_groups' pointer in the 'struct map_symbol' so that we can get rid of 'struct map'->groups. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-23yx8v1t41nzpkpi7rdrozww@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
d3a022cbdc |
perf tools: Add map_groups to 'struct addr_location'
From there we can get al->mg->machine, so replace that field with the more useful 'struct map_groups' that for now we're obtaining from al->map->groups, and that is one thing getting into the way of maps being fully shareable. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-4qdducrm32tgrjupcp0kjh1e@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
9d355b381b |
perf map_groups: Pass the object to map_groups__find_ams()
We were just passing a map to look for and reuse its map->groups member, but the idea is that this is going away, as a map can be in multiple rb_trees when being reused via a map_node, so do as all the other map_groups methods and pass as its first arg the object being operated on. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-nmi2pbggqloogwl6vxrvex5a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
f2baa060cd |
perf symbols: Stop using map->groups, we can use kmaps instead
To test that that function is being called I just added a probe on that
place, enabled it via 'perf trace' asking for at most 16 levels of
backtraces, system wide, and then ran 'perf top' on another xterm,
voilà:
# perf probe -x ~/bin/perf dso__process_kernel_symbol
Added new event:
probe_perf:dso__process_kernel_symbol (on dso__process_kernel_symbol in /home/acme/bin/perf)
You can now use it in all perf tools, such as:
perf record -e probe_perf:dso__process_kernel_symbol -aR sleep 1
# perf trace -e probe_perf:dso__process_kernel_symbol/max-stack=16/ --max-events=2
# perf trace -e probe_perf:dso__process_kernel_symbol/max-stack=16/ --max-events=2
0.000 :17345/17345 probe_perf:dso__process_kernel_symbol(__probe_ip: 5680224)
dso__process_kernel_symbol (/home/acme/bin/perf)
dso__load_vmlinux (/home/acme/bin/perf)
dso__load_vmlinux_path (/home/acme/bin/perf)
dso__load (/home/acme/bin/perf)
map__load (/home/acme/bin/perf)
thread__find_map (/home/acme/bin/perf)
machine__resolve (/home/acme/bin/perf)
deliver_event (/home/acme/bin/perf)
__ordered_events__flush.part.0 (/home/acme/bin/perf)
process_thread (/home/acme/bin/perf)
start_thread (/usr/lib64/libpthread-2.29.so)
0.064 :17345/17345 probe_perf:dso__process_kernel_symbol(__probe_ip: 5680224)
dso__process_kernel_symbol (/home/acme/bin/perf)
dso__load_vmlinux (/home/acme/bin/perf)
dso__load_vmlinux_path (/home/acme/bin/perf)
dso__load (/home/acme/bin/perf)
map__load (/home/acme/bin/perf)
thread__find_map (/home/acme/bin/perf)
machine__resolve (/home/acme/bin/perf)
deliver_event (/home/acme/bin/perf)
__ordered_events__flush.part.0 (/home/acme/bin/perf)
process_thread (/home/acme/bin/perf)
start_thread (/usr/lib64/libpthread-2.29.so)
#
# perf stat -e probe_perf:dso__process_kernel_symbol
^C
Performance counter stats for 'system wide':
107,308 probe_perf:dso__process_kernel_symbol
8.215399813 seconds time elapsed
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-5fy66x5hr5ct9pmw84jkiwvm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
de90d513b2 |
perf map: Use map->dso->kernel + map__kmaps() in map__kmaps()
Its equivalent to using map->groups to obtain the machine struct. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-bdbazuj4ggrmzxdviaqdrdwh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ingo Molnar
|
56b2147f34 |
Merge tag 'perf-core-for-mingo-5.5-20191107' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
perf report:
Jin Yao:
- Introduce --total-cycles, for basic block profiling, further using data
obtained from LBR, an example should suffice:
# perf record -b
^C[ perf record: Woken up 595 times to write data ]
[ perf record: Captured and wrote 156.672 MB perf.data (196873 samples) ]
# perf evlist -v
cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|CPU|PERIOD|BRANCH_STACK, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, branch_sample_type: ANY
# perf report --total-cycles --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
# Total Lost Samples: 0
#
# Samples: 6M of event 'cycles'
# Event count (approx.): 6299936
#
# Sampled Sampled Avg Avg
# Cycles% Cycles Cycles% Cycles [Program Block Range] Shared Object
# ....... ...... ....... ..... .................................... ................
#
2.17% 1.7M 0.08% 607 [compiler.h:199 -> common.c:221] [kernel.vmlinux]
0.72% 544.5K 0.03% 230 [entry_64.S:657 -> entry_64.S:662] [kernel.vmlinux]
0.56% 541.8K 0.09% 672 [compiler.h:199 -> common.c:300] [kernel.vmlinux]
0.39% 293.2K 0.01% 104 [list_debug.c:43 -> list_debug.c:61] [kernel.vmlinux]
0.36% 278.6K 0.03% 272 [entry_64.S:1289 -> entry_64.S:1308] [kernel.vmlinux]
perf record:
Adrian Hunter:
- Allow storing perf.data in a directory together with a copy of /proc/kcore.
Jiwei Sun:
- Add support for limit perf output file size, i.e.:
# perf record --all-cpus -F 10000 --max-size=4M sleep 10h
[ perf record: perf size limit reached (4097 KB), stopping session ]
[ perf record: Woken up 6 times to write data ]
[ perf record: Captured and wrote 4.048 MB perf.data (54094 samples) ]
Terminated
# ls -lah perf.data
-rw-------. 1 root root 4.1M Nov 7 15:27 perf.data
#
perf stat:
Jiri Olsa:
- Add --per-node agregation support:
In live mode:
# perf stat -a -I 1000 -e cycles --per-node
# time node cpus counts unit events
1.000542550 N0 20 6,202,097 cycles
1.000542550 N1 20 639,559 cycles
2.002040063 N0 20 7,412,495 cycles
2.002040063 N1 20 2,185,577 cycles
3.003451699 N0 20 6,508,917 cycles
3.003451699 N1 20 765,607 cycles
...
Or in the record/report stat session:
# perf stat record -a -I 1000 -e cycles
# time counts unit events
1.000536937 10,008,468 cycles
2.002090152 9,578,539 cycles
3.003625233 7,647,869 cycles
4.005135036 7,032,086 cycles
^C 4.340902364 3,923,893 cycles
# perf stat report --per-node
# time node cpus counts unit events
1.000536937 N0 20 9,355,086 cycles
1.000536937 N1 20 653,382 cycles
2.002090152 N0 20 7,712,838 cycles
2.002090152 N1 20 1,865,701 cycles
...
perf probe:
Masami Hiramatsu:
Various fixes related to recent additions to the DWARF format:
- Fix to find range-only function instance
- Walk function lines in lexical blocks
- Fix to show function entry line as probe-able
- Fix wrong address verification
- Fix to probe a function which has no entry pc
- Fix to probe an inline function which has no entry pc
- Fix to list probe event with correct line number
- Fix to show inlined function callsite without entry_pc
- Fix to show ranges of variables in functions without entry_pc
- Return a better scope DIE if there is no best scope
- Skip end-of-sequence and non statement lines
- Filter out instances except for inlined subroutine and subprogram
- Fix to show calling lines of inlined functions
- Skip overlapped location on searching variables
perf inject:
Adrian Hunter:
- Do not strip evsels with --strip, as they are needed for create_gcov
(see the autofdo example in tools/perf/Documentation/intel-pt.txt).
Intel PT:
Adrian Hunter:
- Intel PT uses an auxtrace_cache to store the results of code-walking, to avoid
repeated decoding. Add an auxtrace_cache__remove to handle text poke events.
core:
Andi Kleen:
- Always preserve errno while cleaning up perf_event_open failures.
llvm:
Arnaldo Carvalho de Melo:
- No need to tell that the request for saving a .o file for BPF events, as
expressed in ~/.perfconfig was satisfied, make that a debug message.
perf vendor events:
Intel:
Haiyan Song:
- Update CascadelakeX events to v1.05.
- Update all the Intel JSON metrics from TMAM 3.6.
Treewide:
Ian Rogers:
- Improve error paths, plugging leaks found using LLVM tools
such as libFuzzer.
jevents:
Yunfeng Ye:
- Fix resource leak in process_mapfile() and main()
perf kvm:
Igor Lubashev:
- Use evlist layer api when possible.
libsubcmd:
James Clark:
- Move EXTRA_FLAGS to the end to allow overriding existing flags.
- Use -O0 with DEBUG=1
perf diff:
Jin Yao:
- Don't use hack to skip column length calculation
CoreSight ETM:
Leo yan:
- Fix definition of macro TO_CS_QUEUE_NR
ARM64:
John Garry:
- Do not try to include libelf header files when its feature detection
failed, fixing the cross build for ARM64.
perf tests:
Leo Yan:
- Fix out of bounds memory access in the backward ring buffer test.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Zheng Yongjun
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8f05c1ff8b |
perf/x86/amd: Remove set but not used variable 'active'
'-Wunused-but-set-variable' triggers this warning:
arch/x86/events/amd/core.c: In function amd_pmu_handle_irq:
arch/x86/events/amd/core.c:656:6: warning: variable active set but not used [-Wunused-but-set-variable]
GCC is right, 'active' is not used anymore.
This variable was introduced earlier this year and then removed in:
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Ingo Molnar
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1ca7feb590 |
Merge tag 'v5.4-rc7' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
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31f4f5b495 | Linux 5.4-rc7 v5.4-rc7 | ||
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Linus Torvalds
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4486695680 |
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A set of fixes that have trickled in over the last couple of weeks:
- MAINTAINER update for Cavium/Marvell ThunderX2
- stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for
CAN interfaces
- i.MX fixes for voltage regulator GPIO mappings, fixes voltage
scaling issues
- More i.MX fixes for various issues on i.MX eval boards: interrupt
storm due to u-boot leaving pins in new states, fixing power button
config, a couple of compatible-string corrections.
- Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets
- A few documentation tweaks and a fix of a memory leak in the reset
subsystem"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: update Cavium ThunderX2 maintainers
ARM: dts: stm32: change joystick pinctrl definition on stm32mp157c-ev1
ARM: dts: stm32: remove OV5640 pinctrl definition on stm32mp157c-ev1
ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
arm64: dts: zii-ultra: fix ARM regulator GPIO handle
ARM: sunxi: Fix CPU powerdown on A83T
ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
arm64: dts: imx8mn: fix compatible string for sdma
arm64: dts: imx8mm: fix compatible string for sdma
reset: fix reset_control_ops kerneldoc comment
ARM: dts: imx6-logicpd: Re-enable SNVS power key
soc: imx: gpc: fix initialiser format
ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
arm64: dts: ls1028a: fix a compatible issue
reset: fix reset_control_get_exclusive kerneldoc comment
reset: fix reset_control_lookup kerneldoc comment
reset: fix of_reset_control_get_count kerneldoc comment
reset: fix of_reset_simple_xlate kerneldoc comment
reset: Fix memory leak in reset_control_array_put()
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Linus Torvalds
|
dd892625d0 |
Merge tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull IIO fixes and staging driver from Greg KH: "Here is a mix of a number of IIO driver fixes for 5.4-rc7, and a whole new staging driver. The IIO fixes resolve some reported issues, all are tiny. The staging driver addition is the vboxsf filesystem, which is the VirtualBox guest shared folder code. Hans has been trying to get filesystem reviewers to review the code for many months now, and Christoph finally said to just merge it in staging now as it is stand-alone and the filesystem people can review it easier over time that way. I know it's late for this big of an addition, but it is stand-alone. The code has been in linux-next for a while, long enough to pick up a few tiny fixes for it already so people are looking at it. All of these have been in linux-next with no reported issues" * tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: Fix error return code in vboxsf_fill_super() staging: vboxsf: fix dereference of pointer dentry before it is null checked staging: vboxsf: Remove unused including <linux/version.h> staging: Add VirtualBox guest shared folder (vboxsf) support iio: adc: stm32-adc: fix stopping dma iio: imu: inv_mpu6050: fix no data on MPU6050 iio: srf04: fix wrong limitation in distance measuring iio: imu: adis16480: make sure provided frequency is positive |
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Linus Torvalds
|
3de2a3e937 |
Merge tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH: "Here are a number of late-arrival driver fixes for issues reported for some char/misc drivers for 5.4-rc7 These all come from the different subsystem/driver maintainers as things that they had reports for and wanted to see fixed. All of these have been in linux-next with no reported issues" * tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: intel_th: pci: Add Jasper Lake PCH support intel_th: pci: Add Comet Lake PCH support intel_th: msu: Fix possible memory leak in mode_store() intel_th: msu: Fix overflow in shift of an unsigned int intel_th: msu: Fix missing allocation failure check on a kstrndup intel_th: msu: Fix an uninitialized mutex intel_th: gth: Fix the window switching sequence soundwire: slave: fix scanf format soundwire: intel: fix intel_register_dai PDI offsets and numbers interconnect: Add locking in icc_set_tag() interconnect: qcom: Fix icc_onecell_data allocation soundwire: depend on ACPI || OF soundwire: depend on ACPI thunderbolt: Drop unnecessary read when writing LC command in Ice Lake thunderbolt: Fix lockdep circular locking depedency warning thunderbolt: Read DP IN adapter first two dwords in one go |
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Linus Torvalds
|
a5871fcba4 |
Merge tag 'configfs-for-5.4-2' of git://git.infradead.org/users/hch/configfs
Pull configfs regression fix from Christoph Hellwig: "Fix a regression from this merge window in the configfs symlink handling (Honggang Li)" * tag 'configfs-for-5.4-2' of git://git.infradead.org/users/hch/configfs: configfs: calculate the depth of parent item |
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Linus Torvalds
|
9805a68371 |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of fixes for x86:
- Make the tsc=reliable/nowatchdog command line parameter work again.
It was broken with the introduction of the early TSC clocksource.
- Prevent the evaluation of exception stacks before they are set up.
This causes a crash in dumpstack because the stack walk termination
gets screwed up.
- Prevent a NULL pointer dereference in the rescource control file
system.
- Avoid bogus warnings about APIC id mismatch related to the LDR
which can happen when the LDR is not in use and therefore not
initialized. Only evaluate that when the APIC is in logical
destination mode"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tsc: Respect tsc command line paraemeter for clocksource_tsc_early
x86/dumpstack/64: Don't evaluate exception stacks before setup
x86/apic/32: Avoid bogus LDR warnings
x86/resctrl: Prevent NULL pointer dereference when reading mondata
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Linus Torvalds
|
621084cd3d |
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A small set of fixes for timekeepoing and clocksource drivers:
- VDSO data was updated conditional on the availability of a VDSO
capable clocksource. This causes the VDSO functions which do not
depend on a VDSO capable clocksource to operate on stale data.
Always update unconditionally.
- Prevent a double free in the mediatek driver
- Use the proper helper in the sh_mtu2 driver so it won't attempt to
initialize non-existing interrupts"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping/vsyscall: Update VDSO data unconditionally
clocksource/drivers/sh_mtu2: Do not loop using platform_get_irq_by_name()
clocksource/drivers/mediatek: Fix error handling
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Linus Torvalds
|
81388c2b3f |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Two fixes for scheduler regressions:
- Plug a subtle race condition which was introduced with the rework
of the next task selection functionality. The change of task
properties became unprotected which can be observed inconsistently
causing state corruption.
- A trivial compile fix for CONFIG_CGROUPS=n"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix pick_next_task() vs 'change' pattern race
sched/core: Fix compilation error when cgroup not selected
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Linus Torvalds
|
b584a17628 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner: - Fix the time sorting algorithm which was broken due to truncation of big numbers - Fix the python script generator fail caused by a broken tracepoint array iterator * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Fix time sorting perf tools: Remove unused trace_find_next_event() perf scripting engines: Iterate on tep event arrays directly |