diff options
Diffstat (limited to 'tools/perf/arch')
29 files changed, 870 insertions, 79 deletions
diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c index b39b16395aac..f64516d5b23e 100644 --- a/tools/perf/arch/arm/annotate/instructions.c +++ b/tools/perf/arch/arm/annotate/instructions.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/compiler.h> #include <sys/types.h> #include <regex.h> @@ -24,7 +25,7 @@ static struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const c return ops; } -static int arm__annotate_init(struct arch *arch) +static int arm__annotate_init(struct arch *arch, char *cpuid __maybe_unused) { struct arm_annotate *arm; int err; diff --git a/tools/perf/arch/arm/util/auxtrace.c b/tools/perf/arch/arm/util/auxtrace.c index 8edf2cb71564..2323581b157d 100644 --- a/tools/perf/arch/arm/util/auxtrace.c +++ b/tools/perf/arch/arm/util/auxtrace.c @@ -22,6 +22,42 @@ #include "../../util/evlist.h" #include "../../util/pmu.h" #include "cs-etm.h" +#include "arm-spe.h" + +static struct perf_pmu **find_all_arm_spe_pmus(int *nr_spes, int *err) +{ + struct perf_pmu **arm_spe_pmus = NULL; + int ret, i, nr_cpus = sysconf(_SC_NPROCESSORS_CONF); + /* arm_spe_xxxxxxxxx\0 */ + char arm_spe_pmu_name[sizeof(ARM_SPE_PMU_NAME) + 10]; + + arm_spe_pmus = zalloc(sizeof(struct perf_pmu *) * nr_cpus); + if (!arm_spe_pmus) { + pr_err("spes alloc failed\n"); + *err = -ENOMEM; + return NULL; + } + + for (i = 0; i < nr_cpus; i++) { + ret = sprintf(arm_spe_pmu_name, "%s%d", ARM_SPE_PMU_NAME, i); + if (ret < 0) { + pr_err("sprintf failed\n"); + *err = -ENOMEM; + return NULL; + } + + arm_spe_pmus[*nr_spes] = perf_pmu__find(arm_spe_pmu_name); + if (arm_spe_pmus[*nr_spes]) { + pr_debug2("%s %d: arm_spe_pmu %d type %d name %s\n", + __func__, __LINE__, *nr_spes, + arm_spe_pmus[*nr_spes]->type, + arm_spe_pmus[*nr_spes]->name); + (*nr_spes)++; + } + } + + return arm_spe_pmus; +} struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist, int *err) @@ -29,22 +65,51 @@ struct auxtrace_record struct perf_pmu *cs_etm_pmu; struct perf_evsel *evsel; bool found_etm = false; + bool found_spe = false; + static struct perf_pmu **arm_spe_pmus = NULL; + static int nr_spes = 0; + int i; + + if (!evlist) + return NULL; cs_etm_pmu = perf_pmu__find(CORESIGHT_ETM_PMU_NAME); - if (evlist) { - evlist__for_each_entry(evlist, evsel) { - if (cs_etm_pmu && - evsel->attr.type == cs_etm_pmu->type) - found_etm = true; + if (!arm_spe_pmus) + arm_spe_pmus = find_all_arm_spe_pmus(&nr_spes, err); + + evlist__for_each_entry(evlist, evsel) { + if (cs_etm_pmu && + evsel->attr.type == cs_etm_pmu->type) + found_etm = true; + + if (!nr_spes) + continue; + + for (i = 0; i < nr_spes; i++) { + if (evsel->attr.type == arm_spe_pmus[i]->type) { + found_spe = true; + break; + } } } + if (found_etm && found_spe) { + pr_err("Concurrent ARM Coresight ETM and SPE operation not currently supported\n"); + *err = -EOPNOTSUPP; + return NULL; + } + if (found_etm) return cs_etm_record_init(err); +#if defined(__aarch64__) + if (found_spe) + return arm_spe_recording_init(err, arm_spe_pmus[i]); +#endif + /* - * Clear 'err' even if we haven't found a cs_etm event - that way perf + * Clear 'err' even if we haven't found an event - that way perf * record can still be used even if tracers aren't present. The NULL * return value will take care of telling the infrastructure HW tracing * isn't available. diff --git a/tools/perf/arch/arm/util/pmu.c b/tools/perf/arch/arm/util/pmu.c index 98d67399a0d6..ac4dffc807b8 100644 --- a/tools/perf/arch/arm/util/pmu.c +++ b/tools/perf/arch/arm/util/pmu.c @@ -20,6 +20,7 @@ #include <linux/perf_event.h> #include "cs-etm.h" +#include "arm-spe.h" #include "../../util/pmu.h" struct perf_event_attr @@ -30,7 +31,12 @@ struct perf_event_attr /* add ETM default config here */ pmu->selectable = true; pmu->set_drv_config = cs_etm_set_drv_config; +#if defined(__aarch64__) + } else if (strstarts(pmu->name, ARM_SPE_PMU_NAME)) { + return arm_spe_pmu_default_config(pmu); +#endif } + #endif return NULL; } diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c index 9a3e0523e2c9..6688977e4ac7 100644 --- a/tools/perf/arch/arm64/annotate/instructions.c +++ b/tools/perf/arch/arm64/annotate/instructions.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/compiler.h> #include <sys/types.h> #include <regex.h> @@ -26,7 +27,7 @@ static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const return ops; } -static int arm64__annotate_init(struct arch *arch) +static int arm64__annotate_init(struct arch *arch, char *cpuid __maybe_unused) { struct arm64_annotate *arm; int err; diff --git a/tools/perf/arch/arm64/util/Build b/tools/perf/arch/arm64/util/Build index cef6fb38d17e..c0b8dfef98ba 100644 --- a/tools/perf/arch/arm64/util/Build +++ b/tools/perf/arch/arm64/util/Build @@ -1,6 +1,9 @@ +libperf-y += header.o +libperf-y += sym-handling.o libperf-$(CONFIG_DWARF) += dwarf-regs.o libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o libperf-$(CONFIG_AUXTRACE) += ../../arm/util/pmu.o \ ../../arm/util/auxtrace.o \ - ../../arm/util/cs-etm.o + ../../arm/util/cs-etm.o \ + arm-spe.o diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c new file mode 100644 index 000000000000..1120e39c1b00 --- /dev/null +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -0,0 +1,225 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Arm Statistical Profiling Extensions (SPE) support + * Copyright (c) 2017-2018, Arm Ltd. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/log2.h> +#include <time.h> + +#include "../../util/cpumap.h" +#include "../../util/evsel.h" +#include "../../util/evlist.h" +#include "../../util/session.h" +#include "../../util/util.h" +#include "../../util/pmu.h" +#include "../../util/debug.h" +#include "../../util/auxtrace.h" +#include "../../util/arm-spe.h" + +#define KiB(x) ((x) * 1024) +#define MiB(x) ((x) * 1024 * 1024) + +struct arm_spe_recording { + struct auxtrace_record itr; + struct perf_pmu *arm_spe_pmu; + struct perf_evlist *evlist; +}; + +static size_t +arm_spe_info_priv_size(struct auxtrace_record *itr __maybe_unused, + struct perf_evlist *evlist __maybe_unused) +{ + return ARM_SPE_AUXTRACE_PRIV_SIZE; +} + +static int arm_spe_info_fill(struct auxtrace_record *itr, + struct perf_session *session, + struct auxtrace_info_event *auxtrace_info, + size_t priv_size) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct perf_pmu *arm_spe_pmu = sper->arm_spe_pmu; + + if (priv_size != ARM_SPE_AUXTRACE_PRIV_SIZE) + return -EINVAL; + + if (!session->evlist->nr_mmaps) + return -EINVAL; + + auxtrace_info->type = PERF_AUXTRACE_ARM_SPE; + auxtrace_info->priv[ARM_SPE_PMU_TYPE] = arm_spe_pmu->type; + + return 0; +} + +static int arm_spe_recording_options(struct auxtrace_record *itr, + struct perf_evlist *evlist, + struct record_opts *opts) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct perf_pmu *arm_spe_pmu = sper->arm_spe_pmu; + struct perf_evsel *evsel, *arm_spe_evsel = NULL; + bool privileged = geteuid() == 0 || perf_event_paranoid() < 0; + struct perf_evsel *tracking_evsel; + int err; + + sper->evlist = evlist; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->attr.type == arm_spe_pmu->type) { + if (arm_spe_evsel) { + pr_err("There may be only one " ARM_SPE_PMU_NAME "x event\n"); + return -EINVAL; + } + evsel->attr.freq = 0; + evsel->attr.sample_period = 1; + arm_spe_evsel = evsel; + opts->full_auxtrace = true; + } + } + + if (!opts->full_auxtrace) + return 0; + + /* We are in full trace mode but '-m,xyz' wasn't specified */ + if (opts->full_auxtrace && !opts->auxtrace_mmap_pages) { + if (privileged) { + opts->auxtrace_mmap_pages = MiB(4) / page_size; + } else { + opts->auxtrace_mmap_pages = KiB(128) / page_size; + if (opts->mmap_pages == UINT_MAX) + opts->mmap_pages = KiB(256) / page_size; + } + } + + /* Validate auxtrace_mmap_pages */ + if (opts->auxtrace_mmap_pages) { + size_t sz = opts->auxtrace_mmap_pages * (size_t)page_size; + size_t min_sz = KiB(8); + + if (sz < min_sz || !is_power_of_2(sz)) { + pr_err("Invalid mmap size for ARM SPE: must be at least %zuKiB and a power of 2\n", + min_sz / 1024); + return -EINVAL; + } + } + + + /* + * To obtain the auxtrace buffer file descriptor, the auxtrace event + * must come first. + */ + perf_evlist__to_front(evlist, arm_spe_evsel); + + perf_evsel__set_sample_bit(arm_spe_evsel, CPU); + perf_evsel__set_sample_bit(arm_spe_evsel, TIME); + perf_evsel__set_sample_bit(arm_spe_evsel, TID); + + /* Add dummy event to keep tracking */ + err = parse_events(evlist, "dummy:u", NULL); + if (err) + return err; + + tracking_evsel = perf_evlist__last(evlist); + perf_evlist__set_tracking_event(evlist, tracking_evsel); + + tracking_evsel->attr.freq = 0; + tracking_evsel->attr.sample_period = 1; + perf_evsel__set_sample_bit(tracking_evsel, TIME); + perf_evsel__set_sample_bit(tracking_evsel, CPU); + perf_evsel__reset_sample_bit(tracking_evsel, BRANCH_STACK); + + return 0; +} + +static u64 arm_spe_reference(struct auxtrace_record *itr __maybe_unused) +{ + struct timespec ts; + + clock_gettime(CLOCK_MONOTONIC_RAW, &ts); + + return ts.tv_sec ^ ts.tv_nsec; +} + +static void arm_spe_recording_free(struct auxtrace_record *itr) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + + free(sper); +} + +static int arm_spe_read_finish(struct auxtrace_record *itr, int idx) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct perf_evsel *evsel; + + evlist__for_each_entry(sper->evlist, evsel) { + if (evsel->attr.type == sper->arm_spe_pmu->type) + return perf_evlist__enable_event_idx(sper->evlist, + evsel, idx); + } + return -EINVAL; +} + +struct auxtrace_record *arm_spe_recording_init(int *err, + struct perf_pmu *arm_spe_pmu) +{ + struct arm_spe_recording *sper; + + if (!arm_spe_pmu) { + *err = -ENODEV; + return NULL; + } + + sper = zalloc(sizeof(struct arm_spe_recording)); + if (!sper) { + *err = -ENOMEM; + return NULL; + } + + sper->arm_spe_pmu = arm_spe_pmu; + sper->itr.recording_options = arm_spe_recording_options; + sper->itr.info_priv_size = arm_spe_info_priv_size; + sper->itr.info_fill = arm_spe_info_fill; + sper->itr.free = arm_spe_recording_free; + sper->itr.reference = arm_spe_reference; + sper->itr.read_finish = arm_spe_read_finish; + sper->itr.alignment = 0; + + return &sper->itr; +} + +struct perf_event_attr +*arm_spe_pmu_default_config(struct perf_pmu *arm_spe_pmu) +{ + struct perf_event_attr *attr; + + attr = zalloc(sizeof(struct perf_event_attr)); + if (!attr) { + pr_err("arm_spe default config cannot allocate a perf_event_attr\n"); + return NULL; + } + + /* + * If kernel driver doesn't advertise a minimum, + * use max allowable by PMSIDR_EL1.INTERVAL + */ + if (perf_pmu__scan_file(arm_spe_pmu, "caps/min_interval", "%llu", + &attr->sample_period) != 1) { + pr_debug("arm_spe driver doesn't advertise a min. interval. Using 4096\n"); + attr->sample_period = 4096; + } + + arm_spe_pmu->selectable = true; + arm_spe_pmu->is_uncore = false; + + return attr; +} diff --git a/tools/perf/arch/arm64/util/header.c b/tools/perf/arch/arm64/util/header.c new file mode 100644 index 000000000000..534cd2507d83 --- /dev/null +++ b/tools/perf/arch/arm64/util/header.c @@ -0,0 +1,65 @@ +#include <stdio.h> +#include <stdlib.h> +#include <api/fs/fs.h> +#include "header.h" + +#define MIDR "/regs/identification/midr_el1" +#define MIDR_SIZE 19 +#define MIDR_REVISION_MASK 0xf +#define MIDR_VARIANT_SHIFT 20 +#define MIDR_VARIANT_MASK (0xf << MIDR_VARIANT_SHIFT) + +char *get_cpuid_str(struct perf_pmu *pmu) +{ + char *buf = NULL; + char path[PATH_MAX]; + const char *sysfs = sysfs__mountpoint(); + int cpu; + u64 midr = 0; + struct cpu_map *cpus; + FILE *file; + + if (!sysfs || !pmu || !pmu->cpus) + return NULL; + + buf = malloc(MIDR_SIZE); + if (!buf) + return NULL; + + /* read midr from list of cpus mapped to this pmu */ + cpus = cpu_map__get(pmu->cpus); + for (cpu = 0; cpu < cpus->nr; cpu++) { + scnprintf(path, PATH_MAX, "%s/devices/system/cpu/cpu%d"MIDR, + sysfs, cpus->map[cpu]); + + file = fopen(path, "r"); + if (!file) { + pr_debug("fopen failed for file %s\n", path); + continue; + } + + if (!fgets(buf, MIDR_SIZE, file)) { + fclose(file); + continue; + } + fclose(file); + + /* Ignore/clear Variant[23:20] and + * Revision[3:0] of MIDR + */ + midr = strtoul(buf, NULL, 16); + midr &= (~(MIDR_VARIANT_MASK | MIDR_REVISION_MASK)); + scnprintf(buf, MIDR_SIZE, "0x%016lx", midr); + /* got midr break loop */ + break; + } + + if (!midr) { + pr_err("failed to get cpuid string for PMU %s\n", pmu->name); + free(buf); + buf = NULL; + } + + cpu_map__put(cpus); + return buf; +} diff --git a/tools/perf/arch/arm64/util/sym-handling.c b/tools/perf/arch/arm64/util/sym-handling.c new file mode 100644 index 000000000000..0051b1ee8450 --- /dev/null +++ b/tools/perf/arch/arm64/util/sym-handling.c @@ -0,0 +1,22 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * Copyright (C) 2015 Naveen N. Rao, IBM Corporation + */ + +#include "debug.h" +#include "symbol.h" +#include "map.h" +#include "probe-event.h" +#include "probe-file.h" + +#ifdef HAVE_LIBELF_SUPPORT +bool elf__needs_adjust_symbols(GElf_Ehdr ehdr) +{ + return ehdr.e_type == ET_EXEC || + ehdr.e_type == ET_REL || + ehdr.e_type == ET_DYN; +} +#endif diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c index 8c0cfeb55f8e..c6f373508a4f 100644 --- a/tools/perf/arch/common.c +++ b/tools/perf/arch/common.c @@ -1,12 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 #include <stdio.h> -#include <sys/utsname.h> #include "common.h" +#include "../util/env.h" #include "../util/util.h" #include "../util/debug.h" -#include "sane_ctype.h" - const char *const arm_triplets[] = { "arm-eabi-", "arm-linux-androideabi-", @@ -120,55 +118,19 @@ static int lookup_triplets(const char *const *triplets, const char *name) return -1; } -/* - * Return architecture name in a normalized form. - * The conversion logic comes from the Makefile. - */ -const char *normalize_arch(char *arch) -{ - if (!strcmp(arch, "x86_64")) - return "x86"; - if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6') - return "x86"; - if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5)) - return "sparc"; - if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64")) - return "arm64"; - if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110")) - return "arm"; - if (!strncmp(arch, "s390", 4)) - return "s390"; - if (!strncmp(arch, "parisc", 6)) - return "parisc"; - if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3)) - return "powerpc"; - if (!strncmp(arch, "mips", 4)) - return "mips"; - if (!strncmp(arch, "sh", 2) && isdigit(arch[2])) - return "sh"; - - return arch; -} - static int perf_env__lookup_binutils_path(struct perf_env *env, const char *name, const char **path) { int idx; - const char *arch, *cross_env; - struct utsname uts; + const char *arch = perf_env__arch(env), *cross_env; const char *const *path_list; char *buf = NULL; - arch = normalize_arch(env->arch); - - if (uname(&uts) < 0) - goto out; - /* * We don't need to try to find objdump path for native system. * Just use default binutils path (e.g.: "objdump"). */ - if (!strcmp(normalize_arch(uts.machine), arch)) + if (!strcmp(perf_env__arch(NULL), arch)) goto out; cross_env = getenv("CROSS_COMPILE"); diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h index a1546509ad24..2d875baa92e6 100644 --- a/tools/perf/arch/common.h +++ b/tools/perf/arch/common.h @@ -7,6 +7,5 @@ extern const char *objdump_path; int perf_env__lookup_objdump(struct perf_env *env); -const char *normalize_arch(char *arch); #endif /* ARCH_PERF_COMMON_H */ diff --git a/tools/perf/arch/powerpc/annotate/instructions.c b/tools/perf/arch/powerpc/annotate/instructions.c index b7bc04980fe8..a3f423c27cae 100644 --- a/tools/perf/arch/powerpc/annotate/instructions.c +++ b/tools/perf/arch/powerpc/annotate/instructions.c @@ -1,4 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/compiler.h> + static struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, const char *name) { int i; @@ -47,7 +49,7 @@ static struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, con return ops; } -static int powerpc__annotate_init(struct arch *arch) +static int powerpc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) { if (!arch->initialized) { arch->initialized = true; diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c index 7a4cf80c207a..0b242664f5ea 100644 --- a/tools/perf/arch/powerpc/util/header.c +++ b/tools/perf/arch/powerpc/util/header.c @@ -35,7 +35,7 @@ get_cpuid(char *buffer, size_t sz) } char * -get_cpuid_str(void) +get_cpuid_str(struct perf_pmu *pmu __maybe_unused) { char *bufp; diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/powerpc/util/sym-handling.c index 9c4e23d8c8ce..53d83d7e6a09 100644 --- a/tools/perf/arch/powerpc/util/sym-handling.c +++ b/tools/perf/arch/powerpc/util/sym-handling.c @@ -64,6 +64,14 @@ int arch__compare_symbol_names_n(const char *namea, const char *nameb, return strncmp(namea, nameb, n); } + +const char *arch__normalize_symbol_name(const char *name) +{ + /* Skip over initial dot */ + if (name && *name == '.') + name++; + return name; +} #endif #if defined(_CALL_ELF) && _CALL_ELF == 2 diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile index 21322e0385b8..48228de415d0 100644 --- a/tools/perf/arch/s390/Makefile +++ b/tools/perf/arch/s390/Makefile @@ -2,3 +2,25 @@ ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 endif HAVE_KVM_STAT_SUPPORT := 1 +PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 + +# +# Syscall table generation for perf +# + +out := $(OUTPUT)arch/s390/include/generated/asm +header := $(out)/syscalls_64.c +sysdef := $(srctree)/tools/arch/s390/include/uapi/asm/unistd.h +sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls/ +systbl := $(sysprf)/mksyscalltbl + +# Create output directory if not already present +_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)') + +$(header): $(sysdef) $(systbl) + $(Q)$(SHELL) '$(systbl)' '$(CC)' $(sysdef) > $@ + +clean:: + $(call QUIET_CLEAN, s390) $(RM) $(header) + +archheaders: $(header) diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index c9a81673e8aa..8c72b44444cb 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -1,4 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/compiler.h> + static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name) { struct ins_ops *ops = NULL; @@ -16,11 +18,12 @@ static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *na if (!strcmp(name, "br")) ops = &ret_ops; - arch__associate_ins_ops(arch, name, ops); + if (ops) + arch__associate_ins_ops(arch, name, ops); return ops; } -static int s390__annotate_init(struct arch *arch) +static int s390__annotate_init(struct arch *arch, char *cpuid __maybe_unused) { if (!arch->initialized) { arch->initialized = true; diff --git a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl new file mode 100755 index 000000000000..7fa0d0abd419 --- /dev/null +++ b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl @@ -0,0 +1,36 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Generate system call table for perf +# +# +# Copyright IBM Corp. 2017 +# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> +# + +gcc=$1 +input=$2 + +if ! test -r $input; then + echo "Could not read input file" >&2 + exit 1 +fi + +create_table() +{ + local max_nr + + echo 'static const char *syscalltbl_s390_64[] = {' + while read sc nr; do + printf '\t[%d] = "%s",\n' $nr $sc + max_nr=$nr + done + echo '};' + echo "#define SYSCALLTBL_S390_64_MAX_ID $max_nr" +} + + +$gcc -m64 -E -dM -x c $input \ + |sed -ne 's/^#define __NR_//p' \ + |sort -t' ' -k2 -nu \ + |create_table diff --git a/tools/perf/arch/s390/include/dwarf-regs-table.h b/tools/perf/arch/s390/include/dwarf-regs-table.h index 792d4c277225..671553525f41 100644 --- a/tools/perf/arch/s390/include/dwarf-regs-table.h +++ b/tools/perf/arch/s390/include/dwarf-regs-table.h @@ -1,9 +1,72 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifdef DEFINE_DWARF_REGSTR_TABLE -/* This is included in perf/util/dwarf-regs.c */ +#ifndef S390_DWARF_REGS_TABLE_H +#define S390_DWARF_REGS_TABLE_H -static const char * const s390_regstr_tbl[] = { +#define REG_DWARFNUM_NAME(reg, idx) [idx] = "%" #reg + +/* + * For reference, see DWARF register mapping: + * http://refspecs.linuxfoundation.org/ELF/zSeries/lzsabi0_s390/x1542.html + */ +static const char * const s390_dwarf_regs[] = { "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", + REG_DWARFNUM_NAME(f0, 16), + REG_DWARFNUM_NAME(f1, 20), + REG_DWARFNUM_NAME(f2, 17), + REG_DWARFNUM_NAME(f3, 21), + REG_DWARFNUM_NAME(f4, 18), + REG_DWARFNUM_NAME(f5, 22), + REG_DWARFNUM_NAME(f6, 19), + REG_DWARFNUM_NAME(f7, 23), + REG_DWARFNUM_NAME(f8, 24), + REG_DWARFNUM_NAME(f9, 28), + REG_DWARFNUM_NAME(f10, 25), + REG_DWARFNUM_NAME(f11, 29), + REG_DWARFNUM_NAME(f12, 26), + REG_DWARFNUM_NAME(f13, 30), + REG_DWARFNUM_NAME(f14, 27), + REG_DWARFNUM_NAME(f15, 31), + REG_DWARFNUM_NAME(c0, 32), + REG_DWARFNUM_NAME(c1, 33), + REG_DWARFNUM_NAME(c2, 34), + REG_DWARFNUM_NAME(c3, 35), + REG_DWARFNUM_NAME(c4, 36), + REG_DWARFNUM_NAME(c5, 37), + REG_DWARFNUM_NAME(c6, 38), + REG_DWARFNUM_NAME(c7, 39), + REG_DWARFNUM_NAME(c8, 40), + REG_DWARFNUM_NAME(c9, 41), + REG_DWARFNUM_NAME(c10, 42), + REG_DWARFNUM_NAME(c11, 43), + REG_DWARFNUM_NAME(c12, 44), + REG_DWARFNUM_NAME(c13, 45), + REG_DWARFNUM_NAME(c14, 46), + REG_DWARFNUM_NAME(c15, 47), + REG_DWARFNUM_NAME(a0, 48), + REG_DWARFNUM_NAME(a1, 49), + REG_DWARFNUM_NAME(a2, 50), + REG_DWARFNUM_NAME(a3, 51), + REG_DWARFNUM_NAME(a4, 52), + REG_DWARFNUM_NAME(a5, 53), + REG_DWARFNUM_NAME(a6, 54), + REG_DWARFNUM_NAME(a7, 55), + REG_DWARFNUM_NAME(a8, 56), + REG_DWARFNUM_NAME(a9, 57), + REG_DWARFNUM_NAME(a10, 58), + REG_DWARFNUM_NAME(a11, 59), + REG_DWARFNUM_NAME(a12, 60), + REG_DWARFNUM_NAME(a13, 61), + REG_DWARFNUM_NAME(a14, 62), + REG_DWARFNUM_NAME(a15, 63), + REG_DWARFNUM_NAME(pswm, 64), + REG_DWARFNUM_NAME(pswa, 65), }; -#endif + +#ifdef DEFINE_DWARF_REGSTR_TABLE +/* This is included in perf/util/dwarf-regs.c */ + +#define s390_regstr_tbl s390_dwarf_regs + +#endif /* DEFINE_DWARF_REGSTR_TABLE */ +#endif /* S390_DWARF_REGS_TABLE_H */ diff --git a/tools/perf/arch/s390/include/perf_regs.h b/tools/perf/arch/s390/include/perf_regs.h new file mode 100644 index 000000000000..bcfbaed78cc2 --- /dev/null +++ b/tools/perf/arch/s390/include/perf_regs.h @@ -0,0 +1,95 @@ +#ifndef ARCH_PERF_REGS_H +#define ARCH_PERF_REGS_H + +#include <stdlib.h> +#include <linux/types.h> +#include <asm/perf_regs.h> + +void perf_regs_load(u64 *regs); + +#define PERF_REGS_MASK ((1ULL << PERF_REG_S390_MAX) - 1) +#define PERF_REGS_MAX PERF_REG_S390_MAX +#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64 + +#define PERF_REG_IP PERF_REG_S390_PC +#define PERF_REG_SP PERF_REG_S390_R15 + +static inline const char *perf_reg_name(int id) +{ + switch (id) { + case PERF_REG_S390_R0: + return "R0"; + case PERF_REG_S390_R1: + return "R1"; + case PERF_REG_S390_R2: + return "R2"; + case PERF_REG_S390_R3: + return "R3"; + case PERF_REG_S390_R4: + return "R4"; + case PERF_REG_S390_R5: + return "R5"; + case PERF_REG_S390_R6: + return "R6"; + case PERF_REG_S390_R7: + return "R7"; + case PERF_REG_S390_R8: + return "R8"; + case PERF_REG_S390_R9: + return "R9"; + case PERF_REG_S390_R10: + return "R10"; + case PERF_REG_S390_R11: + return "R11"; + case PERF_REG_S390_R12: + return "R12"; + case PERF_REG_S390_R13: + return "R13"; + case PERF_REG_S390_R14: + return "R14"; + case PERF_REG_S390_R15: + return "R15"; + case PERF_REG_S390_FP0: + return "FP0"; + case PERF_REG_S390_FP1: + return "FP1"; + case PERF_REG_S390_FP2: + return "FP2"; + case PERF_REG_S390_FP3: + return "FP3"; + case PERF_REG_S390_FP4: + return "FP4"; + case PERF_REG_S390_FP5: + return "FP5"; + case PERF_REG_S390_FP6: + return "FP6"; + case PERF_REG_S390_FP7: + return "FP7"; + case PERF_REG_S390_FP8: + return "FP8"; + case PERF_REG_S390_FP9: + return "FP9"; + case PERF_REG_S390_FP10: + return "FP10"; + case PERF_REG_S390_FP11: + return "FP11"; + case PERF_REG_S390_FP12: + return "FP12"; + case PERF_REG_S390_FP13: + return "FP13"; + case PERF_REG_S390_FP14: + return "FP14"; + case PERF_REG_S390_FP15: + return "FP15"; + case PERF_REG_S390_MASK: + return "MASK"; + case PERF_REG_S390_PC: + return "PC"; + default: + return NULL; + } + + return NULL; +} + +#endif /* ARCH_PERF_REGS_H */ diff --git a/tools/perf/arch/s390/util/Build b/tools/perf/arch/s390/util/Build index 5bd7b9260cc0..4a233683c684 100644 --- a/tools/perf/arch/s390/util/Build +++ b/tools/perf/arch/s390/util/Build @@ -2,5 +2,8 @@ libperf-y += header.o libperf-y += kvm-stat.o libperf-$(CONFIG_DWARF) += dwarf-regs.o +libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o libperf-y += machine.o + +libperf-$(CONFIG_AUXTRACE) += auxtrace.o diff --git a/tools/perf/arch/s390/util/auxtrace.c b/tools/perf/arch/s390/util/auxtrace.c new file mode 100644 index 000000000000..6cb48e4cffd9 --- /dev/null +++ b/tools/perf/arch/s390/util/auxtrace.c @@ -0,0 +1,118 @@ +#include <stdbool.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/log2.h> + +#include "../../util/evlist.h" +#include "../../util/auxtrace.h" +#include "../../util/evsel.h" + +#define PERF_EVENT_CPUM_SF 0xB0000 /* Event: Basic-sampling */ +#define PERF_EVENT_CPUM_SF_DIAG 0xBD000 /* Event: Combined-sampling */ +#define DEFAULT_AUX_PAGES 128 +#define DEFAULT_FREQ 4000 + +static void cpumsf_free(struct auxtrace_record *itr) +{ + free(itr); +} + +static size_t cpumsf_info_priv_size(struct auxtrace_record *itr __maybe_unused, + struct perf_evlist *evlist __maybe_unused) +{ + return 0; +} + +static int +cpumsf_info_fill(struct auxtrace_record *itr __maybe_unused, + struct perf_session *session __maybe_unused, + struct auxtrace_info_event *auxtrace_info __maybe_unused, + size_t priv_size __maybe_unused) +{ + return 0; +} + +static unsigned long +cpumsf_reference(struct auxtrace_record *itr __maybe_unused) +{ + return 0; +} + +static int +cpumsf_recording_options(struct auxtrace_record *ar __maybe_unused, + struct perf_evlist *evlist __maybe_unused, + struct record_opts *opts) +{ + unsigned int factor = 1; + unsigned int pages; + + opts->full_auxtrace = true; + + /* + * The AUX buffer size should be set properly to avoid + * overflow of samples if it is not set explicitly. + * DEFAULT_AUX_PAGES is an proper size when sampling frequency + * is DEFAULT_FREQ. It is expected to hold about 1/2 second + * of sampling data. The size used for AUX buffer will scale + * according to the specified frequency and DEFAULT_FREQ. + */ + if (!opts->auxtrace_mmap_pages) { + if (opts->user_freq != UINT_MAX) + factor = (opts->user_freq + DEFAULT_FREQ + - 1) / DEFAULT_FREQ; + pages = DEFAULT_AUX_PAGES * factor; + opts->auxtrace_mmap_pages = roundup_pow_of_two(pages); + } + + return 0; +} + +static int +cpumsf_parse_snapshot_options(struct auxtrace_record *itr __maybe_unused, + struct record_opts *opts __maybe_unused, + const char *str __maybe_unused) +{ + return 0; +} + +/* + * auxtrace_record__init is called when perf record + * check if the event really need auxtrace + */ +struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist, + int *err) +{ + struct auxtrace_record *aux; + struct perf_evsel *pos; + int diagnose = 0; + + if (evlist->nr_entries == 0) + return NULL; + + evlist__for_each_entry(evlist, pos) { + if (pos->attr.config == PERF_EVENT_CPUM_SF_DIAG) { + diagnose = 1; + break; + } + } + + if (!diagnose) + return NULL; + + /* sampling in diagnose mode. alloc aux buffer */ + aux = zalloc(sizeof(*aux)); + if (aux == NULL) { + *err = -ENOMEM; + return NULL; + } + + aux->parse_snapshot_options = cpumsf_parse_snapshot_options; + aux->recording_options = cpumsf_recording_options; + aux->info_priv_size = cpumsf_info_priv_size; + aux->info_fill = cpumsf_info_fill; + aux->free = cpumsf_free; + aux->reference = cpumsf_reference; + + return aux; +} diff --git a/tools/perf/arch/s390/util/dwarf-regs.c b/tools/perf/arch/s390/util/dwarf-regs.c index 0dff5b2ed1e5..a8ace5cc6301 100644 --- a/tools/perf/arch/s390/util/dwarf-regs.c +++ b/tools/perf/arch/s390/util/dwarf-regs.c @@ -2,22 +2,43 @@ /* * Mapping of DWARF debug register numbers into register names. * - * Copyright IBM Corp. 2010 - * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>, + * Copyright IBM Corp. 2010, 2017 + * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>, + * Hendrik Brueckner <brueckner@linux.vnet.ibm.com> * */ +#include <errno.h> #include <stddef.h> +#include <stdlib.h> +#include <linux/kernel.h> +#include <asm/ptrace.h> +#include <string.h> #include <dwarf-regs.h> - -#define NUM_GPRS 16 - -static const char *gpr_names[NUM_GPRS] = { - "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", - "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", -}; +#include "dwarf-regs-table.h" const char *get_arch_regstr(unsigned int n) { - return (n >= NUM_GPRS) ? NULL : gpr_names[n]; + return (n >= ARRAY_SIZE(s390_dwarf_regs)) ? NULL : s390_dwarf_regs[n]; +} + +/* + * Convert the register name into an offset to struct pt_regs (kernel). + * This is required by the BPF prologue generator. The BPF + * program is called in the BPF overflow handler in the perf + * core. + */ +int regs_query_register_offset(const char *name) +{ + unsigned long gpr; + + if (!name || strncmp(name, "%r", 2)) + return -EINVAL; + + errno = 0; + gpr = strtoul(name + 2, NULL, 10); + if (errno || gpr >= 16) + return -EINVAL; + + return offsetof(user_pt_regs, gprs) + 8 * gpr; } diff --git a/tools/perf/arch/s390/util/unwind-libdw.c b/tools/perf/arch/s390/util/unwind-libdw.c new file mode 100644 index 000000000000..387c698cdd1b --- /dev/null +++ b/tools/perf/arch/s390/util/unwind-libdw.c @@ -0,0 +1,63 @@ +#include <linux/kernel.h> +#include <elfutils/libdwfl.h> +#include "../../util/unwind-libdw.h" +#include "../../util/perf_regs.h" +#include "../../util/event.h" +#include "dwarf-regs-table.h" + + +bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) +{ + struct unwind_info *ui = arg; + struct regs_dump *user_regs = &ui->sample->user_regs; + Dwarf_Word dwarf_regs[ARRAY_SIZE(s390_dwarf_regs)]; + +#define REG(r) ({ \ + Dwarf_Word val = 0; \ + perf_reg_value(&val, user_regs, PERF_REG_S390_##r); \ + val; \ +}) + /* + * For DWARF register mapping details, + * see also perf/arch/s390/include/dwarf-regs-table.h + */ + dwarf_regs[0] = REG(R0); + dwarf_regs[1] = REG(R1); + dwarf_regs[2] = REG(R2); + dwarf_regs[3] = REG(R3); + dwarf_regs[4] = REG(R4); + dwarf_regs[5] = REG(R5); + dwarf_regs[6] = REG(R6); + dwarf_regs[7] = REG(R7); + dwarf_regs[8] = REG(R8); + dwarf_regs[9] = REG(R9); + dwarf_regs[10] = REG(R10); + dwarf_regs[11] = REG(R11); + dwarf_regs[12] = REG(R12); + dwarf_regs[13] = REG(R13); + dwarf_regs[14] = REG(R14); + dwarf_regs[15] = REG(R15); + + dwarf_regs[16] = REG(FP0); + dwarf_regs[17] = REG(FP2); + dwarf_regs[18] = REG(FP4); + dwarf_regs[19] = REG(FP6); + dwarf_regs[20] = REG(FP1); + dwarf_regs[21] = REG(FP3); + dwarf_regs[22] = REG(FP5); + dwarf_regs[23] = REG(FP7); + dwarf_regs[24] = REG(FP8); + dwarf_regs[25] = REG(FP10); + dwarf_regs[26] = REG(FP12); + dwarf_regs[27] = REG(FP14); + dwarf_regs[28] = REG(FP9); + dwarf_regs[29] = REG(FP11); + dwarf_regs[30] = REG(FP13); + dwarf_regs[31] = REG(FP15); + + dwarf_regs[64] = REG(MASK); + dwarf_regs[65] = REG(PC); + + dwfl_thread_state_register_pc(thread, dwarf_regs[65]); + return dwfl_thread_state_registers(thread, 0, 32, dwarf_regs); +} diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c index 4adfb4ce2864..5bd1ba8c0282 100644 --- a/tools/perf/arch/x86/annotate/instructions.c +++ b/tools/perf/arch/x86/annotate/instructions.c @@ -123,3 +123,17 @@ static int x86__cpuid_parse(struct arch *arch, char *cpuid) return -1; } + +static int x86__annotate_init(struct arch *arch, char *cpuid) +{ + int err = 0; + + if (arch->initialized) + return 0; + + if (cpuid) + err = x86__cpuid_parse(arch, cpuid); + + arch->initialized = true; + return err; +} diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h index 9834fdc7c59e..c1bd979b957b 100644 --- a/tools/perf/arch/x86/include/arch-tests.h +++ b/tools/perf/arch/x86/include/arch-tests.h @@ -9,7 +9,6 @@ struct test; int test__rdpmc(struct test *test __maybe_unused, int subtest); int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest); int test__insn_x86(struct test *test __maybe_unused, int subtest); -int test__intel_cqm_count_nmi_context(struct test *test __maybe_unused, int subtest); #ifdef HAVE_DWARF_UNWIND_SUPPORT struct thread; diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build index cbb7e978166b..8e2c5a38c3b9 100644 --- a/tools/perf/arch/x86/tests/Build +++ b/tools/perf/arch/x86/tests/Build @@ -5,4 +5,3 @@ libperf-y += arch-tests.o libperf-y += rdpmc.o libperf-y += perf-time-to-tsc.o libperf-$(CONFIG_AUXTRACE) += insn-x86.o -libperf-y += intel-cqm.o diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c index 34a078136a47..cc1802ff5410 100644 --- a/tools/perf/arch/x86/tests/arch-tests.c +++ b/tools/perf/arch/x86/tests/arch-tests.c @@ -25,10 +25,6 @@ struct test arch_tests[] = { }, #endif { - .desc = "Intel cqm nmi context read", - .func = test__intel_cqm_count_nmi_context, - }, - { .func = NULL, }, diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c index b59678e8c1e2..06abe8108b33 100644 --- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c +++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c @@ -84,7 +84,7 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe CHECK__(perf_evlist__open(evlist)); - CHECK__(perf_evlist__mmap(evlist, UINT_MAX, false)); + CHECK__(perf_evlist__mmap(evlist, UINT_MAX)); pc = evlist->mmap[0].base; ret = perf_read_tsc_conversion(pc, &tc); diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c index 33027c5e6f92..fb0d71afee8b 100644 --- a/tools/perf/arch/x86/util/header.c +++ b/tools/perf/arch/x86/util/header.c @@ -66,11 +66,11 @@ get_cpuid(char *buffer, size_t sz) } char * -get_cpuid_str(void) +get_cpuid_str(struct perf_pmu *pmu __maybe_unused) { char *buf = malloc(128); - if (__get_cpuid(buf, 128, "%s-%u-%X$") < 0) { + if (buf && __get_cpuid(buf, 128, "%s-%u-%X$") < 0) { free(buf); return NULL; } diff --git a/tools/perf/arch/x86/util/unwind-libunwind.c b/tools/perf/arch/x86/util/unwind-libunwind.c index 9c917f80c906..05920e3edf7a 100644 --- a/tools/perf/arch/x86/util/unwind-libunwind.c +++ b/tools/perf/arch/x86/util/unwind-libunwind.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 -#ifndef REMOTE_UNWIND_LIBUNWIND #include <errno.h> +#ifndef REMOTE_UNWIND_LIBUNWIND #include <libunwind.h> #include "perf_regs.h" #include "../../util/unwind.h" |
