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2023-12-07perf annotate: Ensure init/exit for global optionsNamhyung Kim1-8/+11
Now it only cares about the global options so it can just handle it without the argument. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231128175441.721579-7-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-12-07perf annotate: Use global annotation_optionsNamhyung Kim1-63/+55
Now it can directly use the global options and no need to pass it as an argument. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231128175441.721579-5-namhyung@kernel.org [ Fixup build with GTK2=1 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-12-07perf annotate: Introduce global annotation_optionsNamhyung Kim1-0/+3
The annotation options are to control the behavior of objdump and the output. It's basically used by 'perf annotate' but 'perf report' and 'perf top' can call it on TUI dynamically. But it doesn't need to have a copy of annotation options in many places. As most of the work is done in the util/annotate.c file, add a global variable and set/use it instead of having their own copies. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231128175441.721579-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-27perf annotate: Check if operand has multiple regsNamhyung Kim1-0/+36
It needs to check all possible information in an instruction. Let's add a field indicating if the operand has multiple registers. I'll be used to search type information like in an array access on x86 like: mov 0x10(%rax,%rbx,8), %rcx ------------- here Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: linux-toolchains@vger.kernel.org Cc: linux-trace-devel@vger.kernel.org Link: https://lore.kernel.org/r/20231012035111.676789-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-10perf annotate: Move raw_comment and raw_func_start fields out of 'struct ins_operands'Namhyung Kim1-4/+13
Thoese two fields are used only for the jump_ops, so move them into the union to save some bytes. Also add jump__delete() callback not to free the fields as they didn't allocate new strings. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: WANG Rui <wangrui@loongson.cn> Cc: linux-toolchains@vger.kernel.org Cc: linux-trace-devel@vger.kernel.org Link: https://lore.kernel.org/r/20231110000012.3538610-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-10perf annotate: Pass "-l" option to objdump conditionallyNamhyung Kim1-1/+2
The "-l" option is to print line numbers in the objdump output. perf annotate TUI only can show the line numbers later but it causes big slow downs for the kernel binary. Similarly, showing source code also takes a long time and it already has an option to control it. $ time objdump ... -d -S -C vmlinux > /dev/null real 0m3.474s user 0m3.047s sys 0m0.428s $ time objdump ... -d -l -C vmlinux > /dev/null real 0m1.796s user 0m1.459s sys 0m0.338s $ time objdump ... -d -C vmlinux > /dev/null real 0m0.051s user 0m0.036s sys 0m0.016s As it's not needed for data type profiling, let's make it conditional so that it can skip the unnecessary work. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: linux-toolchains@vger.kernel.org Cc: linux-trace-devel@vger.kernel.org Link: https://lore.kernel.org/r/20231110000012.3538610-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-09perf annotate: Move offsets array from 'struct annotation' to 'struct annotated_source'Namhyung Kim1-10/+10
The offsets array keeps pointers to 'struct annotation_line' entries which are available in the 'struct annotated_source'. Let's move it to there. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231103191907.54531-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-09perf annotate: Move some source code related fields from 'struct annotation' to 'struct annotated_source'Namhyung Kim1-8/+9
Some fields in the 'struct annotation' are only used with 'struct annotated_source' so better to be moved there in order to reduce memory consumption for other symbols. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231103191907.54531-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-09perf annotate: Move max_coverage from 'struct annotation' to 'struct annotated_branch'Namhyung Kim1-1/+1
The max_coverage field is only used when branch stack info is available so it'd be natural to move to 'struct annotated_branch'. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231103191907.54531-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-09perf annotate: Split branch stack cycles info from 'struct annotation'Namhyung Kim1-45/+54
The cycles info is only meaningful when sample has branch stacks. To save the memory for normal cases, move those fields to a new 'struct annotated_branch' and dynamically allocate it when needed. Also move cycles_hist from annotated_source as it's related here. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231103191907.54531-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-11-09perf annotate: Split branch stack cycles information out of 'struct annotation_line'Namhyung Kim1-17/+44
The cycles info is used only when branch stack is provided. Separate them from 'struct annotation_line' into a separate struct and lazy allocate them to save some memory. Committer notes: Make annotation__compute_ipc() check if the lazy allocation works, bailing out if so, its callers already do error checking and propagation. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20231103191907.54531-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-03perf annotate bpf: Don't enclose non-debug code with an assert()Arnaldo Carvalho de Melo1-3/+7
In 616b14b47a86d880 ("perf build: Conditionally define NDEBUG") we started using NDEBUG=1 when DEBUG=1 isn't present, so code that is enclosed with assert() is not called. In dd317df072071903 ("perf build: Make binutil libraries opt in") we stopped linking against binutils-devel, for licensing reasons. Recently people asked me why annotation of BPF programs wasn't working, i.e. this: $ perf annotate bpf_prog_5280546344e3f45c_kfree_skb was returning: case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); This was on a fedora rpm, so its new enough that I had to try to test by rebuilding using BUILD_NONDISTRO=1, only to get it segfaulting on me. This combination made this libopcode function not to be called: assert(bfd_check_format(bfdf, bfd_object)); Changing it to: if (!bfd_check_format(bfdf, bfd_object)) abort(); Made it work, looking at this "check" function made me realize it changes the 'bfdf' internal state, i.e. we better call it. So stop using assert() on it, just call it and abort if it fails. Probably it is better to propagate the error, etc, but it seems it is unlikely to fail from the usage done so far and we really need to stop using libopcodes, so do the quick fix above and move on. With it we have BPF annotation back working when built with BUILD_NONDISTRO=1: ⬢[acme@toolbox perf-tools-next]$ perf annotate --stdio2 bpf_prog_5280546344e3f45c_kfree_skb | head No kallsyms or vmlinux with build-id 939bc71a1a51cdc434e60af93c7e734f7d5c0e7e was found Samples: 12 of event 'cpu-clock:ppp', 4000 Hz, Event count (approx.): 3000000, [percent: local period] bpf_prog_5280546344e3f45c_kfree_skb() bpf_prog_5280546344e3f45c_kfree_skb Percent int kfree_skb(struct trace_event_raw_kfree_skb *args) { nop 33.33 xchg %ax,%ax push %rbp mov %rsp,%rbp sub $0x180,%rsp push %rbx push %r13 ⬢[acme@toolbox perf-tools-next]$ Fixes: 6987561c9e86eace ("perf annotate: Enable annotation of BPF programs") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mohamed Mahmoud <mmahmoud@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Dave Tucker <datucker@redhat.com> Cc: Derek Barbosa <debarbos@redhat.com> Cc: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/lkml/ZMrMzoQBe0yqMek1@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-06-20perf annotate: Fix instruction association and parsing for LoongArchWANG Rui1-2/+6
In the perf annotate view for LoongArch, there is no arrowed line pointing to the target from the branch instruction. This issue is caused by incorrect instruction association and parsing. $ perf record alloc-6276705c94ad1398 # rust benchmark $ perf report 0.28 │ ori $a1, $zero, 0x63 │ move $a2, $zero 10.55 │ addi.d $a3, $a2, 1(0x1) │ sltu $a4, $a3, $s7 9.53 │ masknez $a4, $s7, $a4 │ sub.d $a3, $a3, $a4 12.12 │ st.d $a1, $fp, 24(0x18) │ st.d $a3, $fp, 16(0x10) 16.29 │ slli.d $a2, $a2, 0x2 │ ldx.w $a2, $s8, $a2 12.77 │ st.w $a2, $sp, 724(0x2d4) │ st.w $s0, $sp, 720(0x2d0) 7.03 │ addi.d $a2, $sp, 720(0x2d0) │ addi.d $a1, $a1, -1(0xfff) 12.03 │ move $a2, $a3 │ → bne $a1, $s3, -52(0x3ffcc) # 82ce8 <test::bench::Bencher::iter+0x3f4> 2.50 │ addi.d $a0, $a0, 1(0x1) This patch fixes instruction association issues, such as associating branch instructions with jump_ops instead of call_ops, and corrects false instruction matches. It also implements branch instruction parsing specifically for LoongArch. With this patch, we will be able to see the arrowed line. 0.79 │3ec: ori $a1, $zero, 0x63 │ move $a2, $zero 10.32 │3f4:┌─→addi.d $a3, $a2, 1(0x1) │ │ sltu $a4, $a3, $s7 10.44 │ │ masknez $a4, $s7, $a4 │ │ sub.d $a3, $a3, $a4 14.17 │ │ st.d $a1, $fp, 24(0x18) │ │ st.d $a3, $fp, 16(0x10) 13.15 │ │ slli.d $a2, $a2, 0x2 │ │ ldx.w $a2, $s8, $a2 11.00 │ │ st.w $a2, $sp, 724(0x2d4) │ │ st.w $s0, $sp, 720(0x2d0) 8.00 │ │ addi.d $a2, $sp, 720(0x2d0) │ │ addi.d $a1, $a1, -1(0xfff) 11.99 │ │ move $a2, $a3 │ └──bne $a1, $s3, 3f4 3.17 │ addi.d $a0, $a0, 1(0x1) Signed-off-by: WANG Rui <wangrui@loongson.cn> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: loongarch@lists.linux.dev Cc: loongson-kernel@lists.loongnix.cn Cc: Huacai Chen <chenhuacai@loongson.cn> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: WANG Xuerui <kernel@xen0n.name> Link: https://lore.kernel.org/r/20230620132025.105563-1-wangrui@loongson.cn Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2023-06-20perf annotation: Switch lock from a mutex to a sharded_mutexIan Rogers1-9/+57
Remove the "struct mutex lock" variable from annotation that is allocated per symbol. This removes in the region of 40 bytes per symbol allocation. Use a sharded mutex where the number of shards is set to the number of CPUs. Assuming good hashing of the annotation (done based on the pointer), this means in order to contend there needs to be more threads than CPUs, which is not currently true in any perf command. Were contention an issue it is straightforward to increase the number of shards in the mutex. On my Debian/glibc based machine, this reduces the size of struct annotation from 136 bytes to 96 bytes, or nearly 30%. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Andres Freund <andres@anarazel.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Yuan Can <yuancan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Link: https://lore.kernel.org/r/20230615040715.2064350-2-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2023-06-16perf annotate: Work with vmlinux outside symfsVincent Whitchurch1-1/+4
It is currently possible to use --symfs along with a vmlinux which lies outside of the symfs by passing an absolute path to --vmlinux, thanks to the check in dso__load_vmlinux() which handles this explicitly. However, the annotate code lacks this check and thus 'perf annotate' does not work ("Internal error: Invalid -1 error code") for kernel functions with this combination. Add the missing handling. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel@axis.com Link: https://lore.kernel.org/r/20221125114210.2353820-1-vincent.whitchurch@axis.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-06-12perf annotate: Allow whitespace between insn operandsNamhyung Kim1-1/+1
The llvm-objdump adds a space between the operands while GNU objdump does not. Allow a space to handle the both. In GNU objdump: Disassembly of section .text: here | ffffffff81000000 <_stext>: v ffffffff81000000: 48 8d 25 51 1f 40 01 lea 0x1401f51(%rip),%rsp ffffffff81000007: e8 d4 00 00 00 call ffffffff810000e0 <verify_cpu> ffffffff8100000c: 48 8d 3d ed ff ff ff lea -0x13(%rip),%rdi In llvm-objdump: Disassembly of section .text: here | ffffffff81000000 <startup_64>: v ffffffff81000000: 48 8d 25 51 1f 40 01 leaq 20979537(%rip), %rsp ffffffff81000007: e8 d4 00 00 00 callq 0xffffffff810000e0 <verify_cpu> ffffffff8100000c: 48 8d 3d ed ff ff ff leaq -19(%rip), %rdi Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230612230026.3887586-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-06-12perf srcline: Change free_srcline to zfree_srclineIan Rogers1-1/+1
Make use after free more unlikely. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ali Saidi <alisaidi@amazon.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Brian Robbins <brianrob@linux.microsoft.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Fangrui Song <maskray@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Babrou <ivan@cloudflare.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: Will Deacon <will@kernel.org> Cc: Yang Jihong <yangjihong1@huawei.com> Cc: Ye Xingchen <ye.xingchen@zte.com.cn> Cc: Yuan Can <yuancan@huawei.com> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230608232823.4027869-26-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-06-12perf annotate: Fix parse_objdump_line memory leakIan Rogers1-1/+2
fileloc is used to hold a previous line, before overwriting it ensure the previous contents is freed. Free the storage once done in symbol__disassemble. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ali Saidi <alisaidi@amazon.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Brian Robbins <brianrob@linux.microsoft.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Fangrui Song <maskray@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Babrou <ivan@cloudflare.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: Will Deacon <will@kernel.org> Cc: Yang Jihong <yangjihong1@huawei.com> Cc: Ye Xingchen <ye.xingchen@zte.com.cn> Cc: Yuan Can <yuancan@huawei.com> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230608232823.4027869-22-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-06-09perf annotate: Handle x86 instruction suffix generallyNamhyung Kim1-0/+22
In AT&T asm syntax, most of x86 instructions can have size suffix like b, w, l or q. Instead of adding all these instructions in the table, we can handle them in a general way. For example, it can try to find an instruction as is. If not found, assuming it has a suffix and it'd try again without the suffix if it's one of the allowed suffixes. This way, we can reduce the instruction table size for duplicated entries of the same instructions with a different suffix. If an instruction xyz and others like xyz<suffix> are completely different ones, then they both need to be listed in the table so that they can be found before the second attempt (without the suffix). Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230524205054.3087004-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-15perf annotate: Parse x86 SIB addressing properlyNamhyung Kim1-0/+13
When the source argument of the "mov" instruction looks like below, it didn't parse the whole operand and just stopped at the first comma. mov (%rbx,%rax,1),%rcx Fix it by checking the parentheses and move it to the closing one. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230511062725.514752-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-07Merge tag 'perf-tools-for-v6.4-3-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linuxLinus Torvalds1-29/+56
Pull perf tool updates from Arnaldo Carvalho de Melo: "Third version of perf tool updates, with the build problems with with using a 'vmlinux.h' generated from the main build fixed, and the bpf skeleton build disabled by default. Build: - Require libtraceevent to build, one can disable it using NO_LIBTRACEEVENT=1. It is required for tools like 'perf sched', 'perf kvm', 'perf trace', etc. libtraceevent is available in most distros so installing 'libtraceevent-devel' should be a one-time event to continue building perf as usual. Using NO_LIBTRACEEVENT=1 produces tooling that is functional and sufficient for lots of users not interested in those libtraceevent dependent features. - Allow Python support in 'perf script' when libtraceevent isn't linked, as not all features requires it, for instance Intel PT does not use tracepoints. - Error if the python interpreter needed for jevents to work isn't available and NO_JEVENTS=1 isn't set, preventing a build without support for JSON vendor events, which is a rare but possible condition. The two check error messages: $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.) $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.) - Make libbpf 1.0 the minimum required when building with out of tree, distro provided libbpf. - Use libsdtc++'s and LLVM's libcxx's __cxa_demangle, a portable C++ demangler, add 'perf test' entry for it. - Make binutils libraries opt in, as distros disable building with it due to licensing, they were used for C++ demangling, for instance. - Switch libpfm4 to opt-out rather than opt-in, if libpfm-devel (or equivalent) isn't installed, we'll just have a build warning: Makefile.config:1144: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev - Add a feature test for scandirat(), that is not implemented so far in musl and uclibc, disabling features that need it, such as scanning for tracepoints in /sys/kernel/tracing/events. perf BPF filters: - New feature where BPF can be used to filter samples, for instance: $ sudo ./perf record -e cycles --filter 'period > 1000' true $ sudo ./perf script perf-exec 2273949 546850.708501: 5029 cycles: ffffffff826f9e25 finish_wait+0x5 ([kernel.kallsyms]) perf-exec 2273949 546850.708508: 32409 cycles: ffffffff826f9e25 finish_wait+0x5 ([kernel.kallsyms]) perf-exec 2273949 546850.708526: 143369 cycles: ffffffff82b4cdbf xas_start+0x5f ([kernel.kallsyms]) perf-exec 2273949 546850.708600: 372650 cycles: ffffffff8286b8f7 __pagevec_lru_add+0x117 ([kernel.kallsyms]) perf-exec 2273949 546850.708791: 482953 cycles: ffffffff829190de __mod_memcg_lruvec_state+0x4e ([kernel.kallsyms]) true 2273949 546850.709036: 501985 cycles: ffffffff828add7c tlb_gather_mmu+0x4c ([kernel.kallsyms]) true 2273949 546850.709292: 503065 cycles: 7f2446d97c03 _dl_map_object_deps+0x973 (/usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2) - In addition to 'period' (PERF_SAMPLE_PERIOD), the other PERF_SAMPLE_ can be used for filtering, and also some other sample accessible values, from tools/perf/Documentation/perf-record.txt: Essentially the BPF filter expression is: <term> <operator> <value> (("," | "||") <term> <operator> <value>)* The <term> can be one of: ip, id, tid, pid, cpu, time, addr, period, txn, weight, phys_addr, code_pgsz, data_pgsz, weight1, weight2, weight3, ins_lat, retire_lat, p_stage_cyc, mem_op, mem_lvl, mem_snoop, mem_remote, mem_lock, mem_dtlb, mem_blk, mem_hops The <operator> can be one of: ==, !=, >, >=, <, <=, & The <value> can be one of: <number> (for any term) na, load, store, pfetch, exec (for mem_op) l1, l2, l3, l4, cxl, io, any_cache, lfb, ram, pmem (for mem_lvl) na, none, hit, miss, hitm, fwd, peer (for mem_snoop) remote (for mem_remote) na, locked (for mem_locked) na, l1_hit, l1_miss, l2_hit, l2_miss, any_hit, any_miss, walk, fault (for mem_dtlb) na, by_data, by_addr (for mem_blk) hops0, hops1, hops2, hops3 (for mem_hops) perf lock contention: - Show lock type with address. - Track and show mmap_lock, siglock and per-cpu rq_lock with address. This is done for mmap_lock by following the current->mm pointer: $ sudo ./perf lock con -abl -- sleep 10 contended total wait max wait avg wait address symbol ... 16344 312.30 ms 2.22 ms 19.11 us ffff8cc702595640 17686 310.08 ms 1.49 ms 17.53 us ffff8cc7025952c0 3 84.14 ms 45.79 ms 28.05 ms ffff8cc78114c478 mmap_lock 3557 76.80 ms 68.75 us 21.59 us ffff8cc77ca3af58 1 68.27 ms 68.27 ms 68.27 ms ffff8cda745dfd70 9 54.53 ms 7.96 ms 6.06 ms ffff8cc7642a48b8 mmap_lock 14629 44.01 ms 60.00 us 3.01 us ffff8cc7625f9ca0 3481 42.63 ms 140.71 us 12.24 us ffffffff937906ac vmap_area_lock 16194 38.73 ms 42.15 us 2.39 us ffff8cd397cbc560 11 38.44 ms 10.39 ms 3.49 ms ffff8ccd6d12fbb8 mmap_lock 1 5.43 ms 5.43 ms 5.43 ms ffff8cd70018f0d8 1674 5.38 ms 422.93 us 3.21 us ffffffff92e06080 tasklist_lock 581 4.51 ms 130.68 us 7.75 us ffff8cc9b1259058 5 3.52 ms 1.27 ms 703.23 us ffff8cc754510070 112 3.47 ms 56.47 us 31.02 us ffff8ccee38b3120 381 3.31 ms 73.44 us 8.69 us ffffffff93790690 purge_vmap_area_lock 255 3.19 ms 36.35 us 12.49 us ffff8d053ce30c80 - Update default map size to 16384. - Allocate single letter option -M for --map-nr-entries, as it is proving being frequently used. - Fix struct rq lock access for older kernels with BPF's CO-RE (Compile once, run everywhere). - Fix problems found with MSAn. perf report/top: - Add inline information when using --call-graph=fp or lbr, as was already done to the --call-graph=dwarf callchain mode. - Improve the 'srcfile' sort key performance by really using an optimization introduced in 6.2 for the 'srcline' sort key that avoids calling addr2line for comparision with each sample. perf sched: - Make 'perf sched latency/map/replay' to use "sched:sched_waking" instead of "sched:sched_waking", consistent with 'perf record' since d566a9c2d482 ("perf sched: Prefer sched_waking event when it exists"). perf ftrace: - Make system wide the default target for latency subcommand, run the following command then generate some network traffic and press control+C: # perf ftrace latency -T __kfree_skb ^C DURATION | COUNT | GRAPH | 0 - 1 us | 27 | ############# | 1 - 2 us | 22 | ########### | 2 - 4 us | 8 | #### | 4 - 8 us | 5 | ## | 8 - 16 us | 24 | ############ | 16 - 32 us | 2 | # | 32 - 64 us | 1 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | # perf top: - Add --branch-history (LBR: Last Branch Record) option, just like already available for 'perf record'. - Fix segfault in thread__comm_len() where thread->comm was being used outside thread->comm_lock. perf annotate: - Allow configuring objdump and addr2line in ~/.perfconfig., so that you can use alternative binaries, such as llvm's. perf kvm: - Add TUI mode for 'perf kvm stat report'. Reference counting: - Add reference count checking infrastructure to check for use after free, done to the 'cpumap', 'namespaces', 'maps' and 'map' structs, more to come. To build with it use -DREFCNT_CHECKING=1 in the make command line to build tools/perf. Documented at: https://perf.wiki.kernel.org/index.php/Reference_Count_Checking - The above caught, for instance, fix, present in this series: - Fix maps use after put in 'perf test "Share thread maps"': 'maps' is copied from leader, but the leader is put on line 79 and then 'maps' is used to read the reference count below - so a use after put, with the put of maps happening within thread__put. Fixed by reversing the order of puts so that the leader is put last. - Also several fixes were made to places where reference counts were not being held. - Make this one of the tests in 'make -C tools/perf build-test' to regularly build test it and to make sure no direct access to the reference counted structs are made, doing that via accessors to check the validity of the struct pointer. ARM64: - Fix 'perf report' segfault when filtering coresight traces by sparse lists of CPUs. - Add support for 'simd' as a sort field for 'perf report', to show ARM's NEON SIMD's predicate flags: "partial" and "empty". arm64 vendor events: - Add N1 metrics. Intel vendor events: - Add graniterapids, grandridge and sierraforrest events. - Refresh events for: alderlake, aldernaken, broadwell, broadwellde, broadwellx, cascadelakx, haswell, haswellx, icelake, icelakex, jaketown, meteorlake, knightslanding, sandybridge, sapphirerapids, silvermont, skylake, tigerlake and westmereep-dp - Refresh metrics for alderlake-n, broadwell, broadwellde, broadwellx, haswell, haswellx, icelakex, ivybridge, ivytown and skylakex. perf stat: - Implement --topdown using JSON metrics. - Add TopdownL1 JSON metric as a default if present, but disable it for now for some Intel hybrid architectures, a series of patches addressing this is being reviewed and will be submitted for v6.5. - Use metrics for --smi-cost. - Update topdown documentation. Vendor events (JSON) infrastructure: - Add support for computing and printing metric threshold values. For instance, here is one found in thesapphirerapids json file: { "BriefDescription": "Percentage of cycles spent in System Management Interrupts.", "MetricExpr": "((msr@aperf@ - cycles) / msr@aperf@ if msr@smi@ > 0 else 0)", "MetricGroup": "smi", "MetricName": "smi_cycles", "MetricThreshold": "smi_cycles > 0.1", "ScaleUnit": "100%" }, - Test parsing metric thresholds with the fake PMU in 'perf test pmu-events'. - Support for printing metric thresholds in 'perf list'. - Add --metric-no-threshold option to 'perf stat'. - Add rand (reverse and) and has_pmem (optane memory) support to metrics. - Sort list of input files to avoid depending on the order from readdir() helping in obtaining reproducible builds. S/390: - Add common metrics: - CPI (cycles per instruction), prbstate (ratio of instructions executed in problem state compared to total number of instructions), l1mp (Level one instruction and data cache misses per 100 instructions). - Add cache metrics for z13, z14, z15 and z16. - Add metric for TLB and cache. ARM: - Add raw decoding for SPE (Statistical Profiling Extension) v1.3 MTE (Memory Tagging Extension) and MOPS (Memory Operations) load/store. Intel PT hardware tracing: - Add event type names UINTR (User interrupt delivered) and UIRET (Exiting from user interrupt routine), documented in table 32-50 "CFE Packet Type and Vector Fields Details" in the Intel Processor Trace chapter of The Intel SDM Volume 3 version 078. - Add support for new branch instructions ERETS and ERETU. - Fix CYC timestamps after standalone CBR ARM CoreSight hardware tracing: - Allow user to override timestamp and contextid settings. - Fix segfault in dso lookup. - Fix timeless decode mode detection. - Add separate decode paths for timeless and per-thread modes. auxtrace: - Fix address filter entire kernel size. Miscellaneous: - Fix use-after-free and unaligned bugs in the PLT handling routines. - Use zfree() to reduce chances of use after free. - Add missing 0x prefix for addresses printed in hexadecimal in 'perf probe'. - Suppress massive unsupported target platform errors in the unwind code. - Fix return incorrect build_id size in elf_read_build_id(). - Fix 'perf scripts intel-pt-events.py' IPC output for Python 2 . - Add missing new parameter in kfree_skb tracepoint to the python scripts using it. - Add 'perf bench syscall fork' benchmark. - Add support for printing PERF_MEM_LVLNUM_UNC (Uncached access) in 'perf mem'. - Fix wrong size expectation for perf test 'Setup struct perf_event_attr' caused by the patch adding perf_event_attr::config3. - Fix some spelling mistakes" * tag 'perf-tools-for-v6.4-3-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (365 commits) Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL" Revert "perf build: Warn for BPF skeletons if endian mismatches" perf metrics: Fix SEGV with --for-each-cgroup perf bpf skels: Stop using vmlinux.h generated from BTF, use subset of used structs + CO-RE perf stat: Separate bperf from bpf_profiler perf test record+probe_libc_inet_pton: Fix call chain match on x86_64 perf test record+probe_libc_inet_pton: Fix call chain match on s390 perf tracepoint: Fix memory leak in is_valid_tracepoint() perf cs-etm: Add fix for coresight trace for any range of CPUs perf build: Fix unescaped # in perf build-test perf unwind: Suppress massive unsupported target platform errors perf script: Add new parameter in kfree_skb tracepoint to the python scripts using it perf script: Print raw ip instead of binary offset for callchain perf symbols: Fix return incorrect build_id size in elf_read_build_id() perf list: Modify the warning message about scandirat(3) perf list: Fix memory leaks in print_tracepoint_events() perf lock contention: Rework offset calculation with BPF CO-RE perf lock contention: Fix struct rq lock access perf stat: Disable TopdownL1 on hybrid perf stat: Avoid SEGV on counter->name ...
2023-05-01tools/perf: Add basic support for LoongArchHuacai Chen1-0/+8
Add basic support for LoongArch, which is very similar to the MIPS version. Signed-off-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-04-17perf dso: Add dso__filename_with_chroot() to reduce number of accesses to dso->nsinfo membersArnaldo Carvalho de Melo1-2/+1
We'll need to reference count dso->nsinfo, so reduce the number of direct accesses by having a shorter form of obtaining a filename with a chroot (namespace one). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/ZD26ZlqSbgSyH5lX@kernel.org [ Used nsinfo__pid(dso->nsinfo), as it was already present ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-12perf annotate: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Also include the missing linux/zalloc.h header directive. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-06perf map: Add helper for ->map_ip() and ->unmap_ip()Ian Rogers1-7/+7
Later changes will add reference count checking for struct map, add a helper function to invoke the map_ip and unmap_ip function pointers. The helper allows the reference count check to be in fewer places. Committer notes: Add missing conversions to: tools/perf/util/map.c tools/perf/util/cs-etm.c tools/perf/util/annotate.c tools/perf/arch/powerpc/util/sym-handling.c tools/perf/arch/s390/annotate/instructions.c Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Hao Luo <haoluo@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miaoqian Lin <linmq006@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Song Liu <song@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Yury Norov <yury.norov@gmail.com> Link: https://lore.kernel.org/r/20230404205954.2245628-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04perf map: Add accessor for start and endIan Rogers1-2/+2
Later changes will add reference count checking for struct map, start and end are frequently accessed variables. Add an accessor so that the reference count check is only necessary in one place. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Hao Luo <haoluo@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miaoqian Lin <linmq006@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Song Liu <song@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Yury Norov <yury.norov@gmail.com> Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04perf map: Add accessor for dsoIan Rogers1-8/+8
Later changes will add reference count checking for struct map, with dso being the most frequently accessed variable. Add an accessor so that the reference count check is only necessary in one place. Additional changes: - add a dso variable to avoid repeated map__dso calls. - in builtin-mem.c dump_raw_samples, code only partially tested for dso == NULL. Make the possibility of NULL consistent. - in thread.c thread__memcpy fix use of spaces and use tabs. Committer notes: Did missing conversions on these files: tools/perf/arch/powerpc/util/skip-callchain-idx.c tools/perf/arch/powerpc/util/sym-handling.c tools/perf/ui/browsers/hists.c tools/perf/ui/gtk/annotate.c tools/perf/util/cs-etm.c tools/perf/util/thread.c tools/perf/util/unwind-libunwind-local.c tools/perf/util/unwind-libunwind.c Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Hao Luo <haoluo@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miaoqian Lin <linmq006@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Song Liu <song@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Yury Norov <yury.norov@gmail.com> Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04perf symbol: Add command line support for addr2line pathIan Rogers1-0/+6
Allow addr2line to be set either on the command line or via the perfconfig file. This doesn't currently work with llvm-addr2line as the addr2line code emits two things: 1) the address to decode, 2) a bogus ',' value. The expectation is the bogus value will generate: ?? ??:0 that terminates the addr2line reading. However, the output from llvm-addr2line is a single line with just the input ',' locking up the addr2line reading that is expecting a second line. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Tom Rix <trix@redhat.com> Cc: llvm@lists.linux.dev Link: https://lore.kernel.org/r/20230328235543.1082207-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04perf annotate: Allow objdump to be set in perfconfigIan Rogers1-0/+6
Allow the setting of the objdump command in the perfconfig. Update man page for this new option. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Tom Rix <trix@redhat.com> Cc: llvm@lists.linux.dev Link: https://lore.kernel.org/r/20230328235543.1082207-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04perf annotate: Own objdump_path and disassembler_style stringsIan Rogers1-2/+8
Make struct annotation_options own the strings objdump_path and disassembler_style, freeing them on exit. Add missing strdup for disassembler_style when read from a config file. Committer notes: Converted free(obj->member) to zfree(&obj->member) in annotation_options__exit() Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Tom Rix <trix@redhat.com> Cc: llvm@lists.linux.dev Link: https://lore.kernel.org/r/20230328235543.1082207-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04perf annotate: Add init/exit to annotation_options remove defaultIan Rogers1-8/+17
The annotation__default_options global variable was used to initialize annotation_options. Switch to the init/exit pattern as later changes will give ownership over strings and this will be necessary to avoid memory leaks. Committer note: Fix the GTK2=1 build, hist_entry__gtk_annotate() needs to receive a 'struct annotation_options' pointer. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Tom Rix <trix@redhat.com> Cc: llvm@lists.linux.dev Link: https://lore.kernel.org/r/20230328235543.1082207-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-04perf annotate: Toggle full address <-> offset displayNamhyung Kim1-1/+18
Handle 'f' key to toggle the display offset and full address. Obviously it only works when users set to see disassembler output ('o' key). It'd be useful when users want to see the full virtual address in the TUI annotate browser. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220923173142.805896-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-04perf dso: Hold lock when accessing nsinfoIan Rogers1-0/+2
There may be threads racing to update dso->nsinfo: https://lore.kernel.org/linux-perf-users/CAP-5=fWZH20L4kv-BwVtGLwR=Em3AOOT+Q4QGivvQuYn5AsPRg@mail.gmail.com/ Holding the dso->lock avoids use-after-free, memory leaks and other such bugs. Apply the fix in: https://lore.kernel.org/linux-perf-users/20211118193714.2293728-1-irogers@google.com/ of there being a missing nsinfo__put now that the accesses are data race free. Fixes test "Lookup mmap thread" when compiled with address sanitizer. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Truong <alexandre.truong@arm.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: André Almeida <andrealmeid@igalia.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Colin Ian King <colin.king@intel.com> Cc: Dario Petrillo <dario.pk1@gmail.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Fangrui Song <maskray@google.com> Cc: Hewenliang <hewenliang4@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jason Wang <wangborong@cdjrlc.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Pavithra Gurushankar <gpavithrasha@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Tom Rix <trix@redhat.com> Cc: Weiguo Li <liwg06@foxmail.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: William Cohen <wcohen@redhat.com> Cc: Zechuan Chen <chenzechuan1@huawei.com> Cc: bpf@vger.kernel.org Cc: llvm@lists.linux.dev Cc: yaowenbin <yaowenbin1@huawei.com> Link: https://lore.kernel.org/r/20220826164242.43412-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-04perf annotate: Update use of pthread mutexIan Rogers1-7/+6
Switch to the use of mutex wrappers that provide better error checking. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Truong <alexandre.truong@arm.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: André Almeida <andrealmeid@igalia.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Colin Ian King <colin.king@intel.com> Cc: Dario Petrillo <dario.pk1@gmail.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Fangrui Song <maskray@google.com> Cc: Hewenliang <hewenliang4@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jason Wang <wangborong@cdjrlc.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Pavithra Gurushankar <gpavithrasha@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Tom Rix <trix@redhat.com> Cc: Weiguo Li <liwg06@foxmail.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: William Cohen <wcohen@redhat.com> Cc: Zechuan Chen <chenzechuan1@huawei.com> Cc: bpf@vger.kernel.org Cc: llvm@lists.linux.dev Cc: yaowenbin <yaowenbin1@huawei.com> Link: https://lore.kernel.org/r/20220826164242.43412-13-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-01tools perf: Fix compilation error with new binutilsAndres Freund1-3/+4
binutils changed the signature of init_disassemble_info(), which now causes compilation failures for tools/perf/util/annotate.c, e.g. on debian unstable. Relevant binutils commit: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07 Wire up the feature test and switch to init_disassemble_info_compat(), which were introduced in prior commits, fixing the compilation failure. I verified that perf can still disassemble bpf programs by using bpftrace under load, recording a perf trace, and then annotating the bpf "function" with and without the changes. With old binutils there's no change in output before/after this patch. When comparing the output from old binutils (2.35) to new bintuils with the patch (upstream snapshot) there are a few output differences, but they are unrelated to this patch. An example hunk is: 1.15 : 55:mov %rbp,%rdx 0.00 : 58:add $0xfffffffffffffff8,%rdx 0.00 : 5c:xor %ecx,%ecx - 1.03 : 5e:callq 0xffffffffe12aca3c + 1.03 : 5e:call 0xffffffffe12aca3c 0.00 : 63:xor %eax,%eax - 2.18 : 65:leaveq - 2.82 : 66:retq + 2.18 : 65:leave + 2.82 : 66:ret Signed-off-by: Andres Freund <andres@anarazel.de> Acked-by: Quentin Monnet <quentin@isovalent.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Ben Hutchings <benh@debian.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de Link: https://lore.kernel.org/r/20220801013834.156015-5-andres@anarazel.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout outputIan Rogers1-0/+1
If objdump writes to stderr it can block waiting for it to be read. As perf doesn't read stderr then progress stops with perf waiting for stdout output. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Truong <alexandre.truong@arm.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: Denis Nikitin <denik@chromium.org> Cc: German Gomez <german.gomez@arm.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Lexi Shao <shaolexi@huawei.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Cc: William Cohen <wcohen@redhat.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lore.kernel.org/lkml/20220407230503.1265036-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-10perf annotate: Try chroot filename for objdumpNamhyung Kim1-0/+10
Likewise, it should use a proper name in case the task runs under chroot. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20220202070828.143303-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06perf annotate: Set error stream of objdump process for TUINamhyung Kim1-0/+1
The stderr should be set to a pipe when using TUI. Otherwise it'd print to stdout and break TUI windows with an error message. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20220202070828.143303-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-11-13perf symbols: Factor out annotation init/exitIan Rogers1-0/+11
The exit function fixes a memory leak with the src field as detected by leak sanitizer. An example of which is: Indirect leak of 25133184 byte(s) in 207 object(s) allocated from: #0 0x7f199ecfe987 in __interceptor_calloc libsanitizer/asan/asan_malloc_linux.cpp:154 #1 0x55defe638224 in annotated_source__alloc_histograms util/annotate.c:803 #2 0x55defe6397e4 in symbol__hists util/annotate.c:952 #3 0x55defe639908 in symbol__inc_addr_samples util/annotate.c:968 #4 0x55defe63aa29 in hist_entry__inc_addr_samples util/annotate.c:1119 #5 0x55defe499a79 in hist_iter__report_callback tools/perf/builtin-report.c:182 #6 0x55defe7a859d in hist_entry_iter__add util/hist.c:1236 #7 0x55defe49aa63 in process_sample_event tools/perf/builtin-report.c:315 #8 0x55defe731bc8 in evlist__deliver_sample util/session.c:1473 #9 0x55defe731e38 in machines__deliver_event util/session.c:1510 #10 0x55defe732a23 in perf_session__deliver_event util/session.c:1590 #11 0x55defe72951e in ordered_events__deliver_event util/session.c:183 #12 0x55defe740082 in do_flush util/ordered-events.c:244 #13 0x55defe7407cb in __ordered_events__flush util/ordered-events.c:323 #14 0x55defe740a61 in ordered_events__flush util/ordered-events.c:341 #15 0x55defe73837f in __perf_session__process_events util/session.c:2390 #16 0x55defe7385ff in perf_session__process_events util/session.c:2420 ... Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20211112035124.94327-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-11-13perf symbols: Bit pack to save a byteIan Rogers1-1/+1
Use a bit field alongside the earlier bit fields. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20211112035124.94327-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-11-01perf bpf: Pull in bpf_program__get_prog_info_linear()Dave Marchevsky1-1/+2
To prepare for impending deprecation of libbpf's bpf_program__get_prog_info_linear(), pull in the function and associated helpers into the perf codebase and migrate existing uses to the perf copy. Since libbpf's deprecated definitions will still be visible to perf, it is necessary to rename perf's definitions. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20211011082031.4148337-4-davemarchevsky@fb.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-27perf annotate: Add riscv64 supportWilliam Cohen1-0/+5
This patch adds basic arch initialization and instruction associate support for the riscv64 CPU architecture. Example output: $ perf annotate --stdio2 Samples: 122K of event 'task-clock:u', 4000 Hz, Event count (approx.): 30637250000, [percent: local period] strcmp() /usr/lib64/libc-2.32.so Percent Disassembly of section .text: 0000000000069a30 <strcmp>: __GI_strcmp(): const unsigned char *s2 = (const unsigned char *) p2; unsigned char c1, c2; do { c1 = (unsigned char) *s1++; 37.30 lbu a5,0(a0) c2 = (unsigned char) *s2++; 1.23 addi a1,a1,1 c1 = (unsigned char) *s1++; 18.68 addi a0,a0,1 c2 = (unsigned char) *s2++; 1.37 lbu a4,-1(a1) if (c1 == '\0') 18.71 ↓ beqz a5,18 return c1 - c2; } Signed-off-by: William Cohen <wcohen@redhat.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-riscv@lists.infradead.org Link: http://lore.kernel.org/lkml/20210927005115.610264-1-wcohen@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-15perf annotate: Add fusion logic for AMD microarchsRavi Bangoria1-1/+0
AMD family 15h and above microarchs fuse a subset of cmp/test/ALU instructions with branch instructions[1][2]. Add perf annotate fused instruction support for these microarchs. Before: │ testb $0x80,0x51(%rax) │ ┌──jne 5b3 0.78 │ │ mov %r13,%rdi │ │→ callq mark_page_accessed 1.08 │5b3:└─→mov 0x8(%r13),%rax After: │ ┌──testb $0x80,0x51(%rax) │ ├──jne 5b3 0.78 │ │ mov %r13,%rdi │ │→ callq mark_page_accessed 1.08 │5b3:└─→mov 0x8(%r13),%rax [1] https://bugzilla.kernel.org/attachment.cgi?id=298553 [2] https://bugzilla.kernel.org/attachment.cgi?id=298555 Committer testing: On a: $ grep -m1 "model name" /proc/cpuinfo model name : AMD Ryzen 9 3900X 12-Core Processor $ Samples: 44K of event 'cycles', 4000 Hz, Event count (approx.): 7533249650 _int_malloc /usr/lib64/libc-2.33.so [Percent: local period] Percent│ ┌──test %eax,%eax │ ├──jne 884 │ │↓ jmpq 943 │ │ nop │878:│ add $0x10,%rdx 0.64 │ │ add %eax,%eax 0.57 │ │↓ je cc9 0.77 │884:└─→test %esi,%eax │ ↑ je 878 │ mov 0x18(%rdx),%r15 Reported-by: Kim Phillips <kim.phillips@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https //lore.kernel.org/r/20210911043854.8373-2-ravi.bangoria@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-08-31perf bpf: Fix memory leaks relating to BTF.Ian Rogers1-1/+1
BTF needs to be freed with btf__free(). Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@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/20210826184833.408563-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-08-03perf annotate: Add disassembly warnings for annotate --stdioJames Clark1-2/+18
Currently 'perf annotate --stdio' (and --stdio2) will exit without printing anything if there are disassembly errors. Apply the same error handler that's used for TUI and GTK modes. This makes comparing disassembly across the different modes more consistent. Signed-off-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lore.kernel.org/lkml/20210729155805.2830-4-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-08-02perf annotate: Add error log in symbol__annotate()Li Huafei1-1/+3
When users use 'perf annotate' on unsupported machines, error logs should be printed for user feedback. Signed-off-by: Li Huafei <lihuafei1@huawei.com> Reviewed-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Dengcheng Zhu <dzhu@wavecomp.com> Cc: Ian Rogers <irogers@google.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Zhang Jinhao <zhangjinhao2@huawei.com> Link: http://lore.kernel.org/lkml/20210726123854.13463-2-lihuafei1@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-07-09libperf: Move 'idx' from tools/perf to perf_evsel::idxJiri Olsa1-4/+4
Move evsel::idx to perf_evsel::idx, so we can move the group interface to libperf. Committer notes: Fixup evsel->idx usage in tools/perf/util/bpf_counter_cgroup.c, that appeared in my tree in my local tree. Also fixed up these: $ find tools/perf/ -name "*.[ch]" | xargs grep 'evsel->idx' tools/perf/ui/gtk/annotate.c: evsel->idx + i); tools/perf/ui/gtk/annotate.c: evsel->idx); $ That running 'make -C tools/perf build-test' caught. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Requested-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210706151704.73662-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-04-20perf annotate: Add line number like in TUI and source location at EOLMartin Liška1-16/+14
The patch changes the output format in 2 ways: - line number is displayed for all source lines (matching TUI mode) - source locations for the hottest lines are printed at the line end in order to preserve layout Before: 0.00 : 405ef1: inc %r15 : tmpsd * (TD + tmpsd * TDD))); 0.01 : 405ef4: vfmadd213sd 0x2b9b3(%rip),%xmm0,%xmm3 # 4318b0 <_IO_stdin_used+0x8b0> : tmpsd * (TC + eff.c:1811 0.67 : 405efd: vfmadd213sd 0x2b9b2(%rip),%xmm0,%xmm3 # 4318b8 <_IO_stdin_used+0x8b8> : TA + tmpsd * (TB + 0.35 : 405f06: vfmadd213sd 0x2b9b1(%rip),%xmm0,%xmm3 # 4318c0 <_IO_stdin_used+0x8c0> : dumbo = eff.c:1809 1.41 : 405f0f: vfmadd213sd 0x2b9b0(%rip),%xmm0,%xmm3 # 4318c8 <_IO_stdin_used+0x8c8> : sumi -= sj * tmpsd * dij2i * dumbo; eff.c:1813 2.58 : 405f18: vmulsd %xmm3,%xmm0,%xmm0 2.81 : 405f1c: vfnmadd213sd 0x30(%rsp),%xmm1,%xmm0 3.78 : 405f23: vmovsd %xmm0,0x30(%rsp) : for (k = 0; k < lpears[i] + upears[i]; k++) { eff.c:1761 0.90 : 405f29: cmp %r15d,%r12d After: 0.00 : 405ef1: inc %r15 : 1812 tmpsd * (TD + tmpsd * TDD))); 0.01 : 405ef4: vfmadd213sd 0x2b9b3(%rip),%xmm0,%xmm3 # 4318b0 <_IO_stdin_used+0x8b0> : 1811 tmpsd * (TC + 0.67 : 405efd: vfmadd213sd 0x2b9b2(%rip),%xmm0,%xmm3 # 4318b8 <_IO_stdin_used+0x8b8> // eff.c:1811 : 1810 TA + tmpsd * (TB + 0.35 : 405f06: vfmadd213sd 0x2b9b1(%rip),%xmm0,%xmm3 # 4318c0 <_IO_stdin_used+0x8c0> : 1809 dumbo = 1.41 : 405f0f: vfmadd213sd 0x2b9b0(%rip),%xmm0,%xmm3 # 4318c8 <_IO_stdin_used+0x8c8> // eff.c:1809 : 1813 sumi -= sj * tmpsd * dij2i * dumbo; 2.58 : 405f18: vmulsd %xmm3,%xmm0,%xmm0 // eff.c:1813 2.81 : 405f1c: vfnmadd213sd 0x30(%rsp),%xmm1,%xmm0 3.78 : 405f23: vmovsd %xmm0,0x30(%rsp) : 1761 for (k = 0; k < lpears[i] + upears[i]; k++) { Where e.g. '// eff.c:1811' shares the same color as the percentantage at the line beginning. Signed-off-by: Martin Liška <mliska@suse.cz> Link: http://lore.kernel.org/lkml/a0d53f31-f633-5013-c386-a4452391b081@suse.cz Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf annotate: Show full source location with 'l' hotkeyMartin Liska1-2/+10
Right now, when Line numbers are displayed, one can't easily find a source file that the line corresponds to. When a source line is selected and 'l' is pressed, full source file location is displayed in perf UI footer line. The hotkey works only for source code lines. Signed-off-by: Martin Liška <mliska@suse.cz> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: http://lore.kernel.org/lkml/25a6384f-d862-5dda-4fec-8f0555599c75@suse.cz Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf config: Add annotate.demangle{,_kernel}Martin Liska1-0/+4
Committer notes: This allows setting this in from the command line: $ perf config annotate.demangle $ perf config annotate.demangle=yes $ perf config annotate.demangle annotate.demangle=yes $ cat ~/.perfconfig # this file is auto-generated. [report] sort-order = srcline [annotate] demangle = yes $ $ $ perf config annotate.demangle_kernel $ perf config annotate.demangle_kernel=yes $ perf config annotate.demangle_kernel annotate.demangle_kernel=yes $ cat ~/.perfconfig # this file is auto-generated. [report] sort-order = srcline [annotate] demangle = yes demangle_kernel = yes $ Signed-off-by: Martin Liška <mliska@suse.cz> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: https://lore.kernel.org/r/c96aabe7-791f-9503-295f-3147a9d19b60@suse.cz Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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