diff options
Diffstat (limited to 'tools/perf/arch')
73 files changed, 491 insertions, 1215 deletions
diff --git a/tools/perf/arch/arc/annotate/instructions.c b/tools/perf/arch/arc/annotate/instructions.c index 2f00e995c7e3..e5619770a1af 100644 --- a/tools/perf/arch/arc/annotate/instructions.c +++ b/tools/perf/arch/arc/annotate/instructions.c @@ -5,5 +5,7 @@ static int arc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) { arch->initialized = true; arch->objdump.comment_char = ';'; + arch->e_machine = EM_ARC; + arch->e_flags = 0; return 0; } diff --git a/tools/perf/arch/arm/Makefile b/tools/perf/arch/arm/Makefile index 1d88fdab13bf..8b59ce8efb89 100644 --- a/tools/perf/arch/arm/Makefile +++ b/tools/perf/arch/arm/Makefile @@ -1,5 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif PERF_HAVE_JITDUMP := 1 diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c index 2ff6cedeb9c5..cf91a43362b0 100644 --- a/tools/perf/arch/arm/annotate/instructions.c +++ b/tools/perf/arch/arm/annotate/instructions.c @@ -53,6 +53,8 @@ static int arm__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->associate_instruction_ops = arm__associate_instruction_ops; arch->objdump.comment_char = ';'; arch->objdump.skip_functions_char = '+'; + arch->e_machine = EM_ARM; + arch->e_flags = 0; return 0; out_free_call: diff --git a/tools/perf/arch/arm/util/Build b/tools/perf/arch/arm/util/Build index e6dd7cd79ebd..f7a8b37d1c68 100644 --- a/tools/perf/arch/arm/util/Build +++ b/tools/perf/arch/arm/util/Build @@ -1,7 +1,5 @@ perf-util-y += perf_regs.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o - perf-util-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/arm/util/dwarf-regs.c b/tools/perf/arch/arm/util/dwarf-regs.c deleted file mode 100644 index fc5f71c91802..000000000000 --- a/tools/perf/arch/arm/util/dwarf-regs.c +++ /dev/null @@ -1,61 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2010 Will Deacon, ARM Ltd. - */ - -#include <stddef.h> -#include <linux/stringify.h> -#include <dwarf-regs.h> - -struct pt_regs_dwarfnum { - const char *name; - unsigned int dwarfnum; -}; - -#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num} -#define GPR_DWARFNUM_NAME(num) \ - {.name = __stringify(%r##num), .dwarfnum = num} -#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0} - -/* - * Reference: - * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0040a/IHI0040A_aadwarf.pdf - */ -static const struct pt_regs_dwarfnum regdwarfnum_table[] = { - GPR_DWARFNUM_NAME(0), - GPR_DWARFNUM_NAME(1), - GPR_DWARFNUM_NAME(2), - GPR_DWARFNUM_NAME(3), - GPR_DWARFNUM_NAME(4), - GPR_DWARFNUM_NAME(5), - GPR_DWARFNUM_NAME(6), - GPR_DWARFNUM_NAME(7), - GPR_DWARFNUM_NAME(8), - GPR_DWARFNUM_NAME(9), - GPR_DWARFNUM_NAME(10), - REG_DWARFNUM_NAME("%fp", 11), - REG_DWARFNUM_NAME("%ip", 12), - REG_DWARFNUM_NAME("%sp", 13), - REG_DWARFNUM_NAME("%lr", 14), - REG_DWARFNUM_NAME("%pc", 15), - REG_DWARFNUM_END, -}; - -/** - * get_arch_regstr() - lookup register name from it's DWARF register number - * @n: the DWARF register number - * - * get_arch_regstr() returns the name of the register in struct - * regdwarfnum_table from it's DWARF register number. If the register is not - * found in the table, this returns NULL; - */ -const char *get_arch_regstr(unsigned int n) -{ - const struct pt_regs_dwarfnum *roff; - for (roff = regdwarfnum_table; roff->name != NULL; roff++) - if (roff->dwarfnum == n) - return roff->name; - return NULL; -} diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile index 5735ed4479bb..91570d5d428e 100644 --- a/tools/perf/arch/arm64/Makefile +++ b/tools/perf/arch/arm64/Makefile @@ -1,9 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif PERF_HAVE_JITDUMP := 1 -PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 HAVE_KVM_STAT_SUPPORT := 1 # diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c index f86d9f4798bd..d465d093e7eb 100644 --- a/tools/perf/arch/arm64/annotate/instructions.c +++ b/tools/perf/arch/arm64/annotate/instructions.c @@ -113,6 +113,8 @@ static int arm64__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->associate_instruction_ops = arm64__associate_instruction_ops; arch->objdump.comment_char = '/'; arch->objdump.skip_functions_char = '+'; + arch->e_machine = EM_AARCH64; + arch->e_flags = 0; return 0; out_free_call: diff --git a/tools/perf/arch/arm64/util/Build b/tools/perf/arch/arm64/util/Build index 343ef7589a77..a74521b79eaa 100644 --- a/tools/perf/arch/arm64/util/Build +++ b/tools/perf/arch/arm64/util/Build @@ -4,7 +4,6 @@ perf-util-y += perf_regs.o perf-util-y += tsc.o perf-util-y += pmu.o perf-util-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o perf-util-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c index 2be99fdf997d..22b19dcc6beb 100644 --- a/tools/perf/arch/arm64/util/arm-spe.c +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -23,9 +23,12 @@ #include "../../../util/debug.h" #include "../../../util/auxtrace.h" #include "../../../util/record.h" +#include "../../../util/header.h" #include "../../../util/arm-spe.h" #include <tools/libc_compat.h> // reallocarray +#define ARM_SPE_CPU_MAGIC 0x1010101010101010ULL + #define KiB(x) ((x) * 1024) #define MiB(x) ((x) * 1024 * 1024) @@ -37,11 +40,84 @@ struct arm_spe_recording { bool *wrapped; }; +/* + * arm_spe_find_cpus() returns a new cpu map, and the caller should invoke + * perf_cpu_map__put() to release the map after use. + */ +static struct perf_cpu_map *arm_spe_find_cpus(struct evlist *evlist) +{ + struct perf_cpu_map *event_cpus = evlist->core.user_requested_cpus; + struct perf_cpu_map *online_cpus = perf_cpu_map__new_online_cpus(); + struct perf_cpu_map *intersect_cpus; + + /* cpu map is not "any" CPU , we have specific CPUs to work with */ + if (!perf_cpu_map__has_any_cpu(event_cpus)) { + intersect_cpus = perf_cpu_map__intersect(event_cpus, online_cpus); + perf_cpu_map__put(online_cpus); + /* Event can be "any" CPU so count all CPUs. */ + } else { + intersect_cpus = online_cpus; + } + + return intersect_cpus; +} + static size_t arm_spe_info_priv_size(struct auxtrace_record *itr __maybe_unused, - struct evlist *evlist __maybe_unused) + struct evlist *evlist) +{ + struct perf_cpu_map *cpu_map = arm_spe_find_cpus(evlist); + size_t size; + + if (!cpu_map) + return 0; + + size = ARM_SPE_AUXTRACE_PRIV_MAX + + ARM_SPE_CPU_PRIV_MAX * perf_cpu_map__nr(cpu_map); + size *= sizeof(u64); + + perf_cpu_map__put(cpu_map); + return size; +} + +static int arm_spe_save_cpu_header(struct auxtrace_record *itr, + struct perf_cpu cpu, __u64 data[]) { - return ARM_SPE_AUXTRACE_PRIV_SIZE; + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct perf_pmu *pmu = NULL; + char *cpuid = NULL; + u64 val; + + /* Read CPU MIDR */ + cpuid = get_cpuid_allow_env_override(cpu); + if (!cpuid) + return -ENOMEM; + val = strtol(cpuid, NULL, 16); + + data[ARM_SPE_MAGIC] = ARM_SPE_CPU_MAGIC; + data[ARM_SPE_CPU] = cpu.cpu; + data[ARM_SPE_CPU_NR_PARAMS] = ARM_SPE_CPU_PRIV_MAX - ARM_SPE_CPU_MIDR; + data[ARM_SPE_CPU_MIDR] = val; + + /* Find the associate Arm SPE PMU for the CPU */ + if (perf_cpu_map__has(sper->arm_spe_pmu->cpus, cpu)) + pmu = sper->arm_spe_pmu; + + if (!pmu) { + /* No Arm SPE PMU is found */ + data[ARM_SPE_CPU_PMU_TYPE] = ULLONG_MAX; + data[ARM_SPE_CAP_MIN_IVAL] = 0; + } else { + data[ARM_SPE_CPU_PMU_TYPE] = pmu->type; + + if (perf_pmu__scan_file(pmu, "caps/min_interval", "%lu", &val) != 1) + val = 0; + data[ARM_SPE_CAP_MIN_IVAL] = val; + } + + free(cpuid); + return ARM_SPE_CPU_PRIV_MAX; } static int arm_spe_info_fill(struct auxtrace_record *itr, @@ -49,20 +125,46 @@ static int arm_spe_info_fill(struct auxtrace_record *itr, struct perf_record_auxtrace_info *auxtrace_info, size_t priv_size) { + int i, ret; + size_t offset; 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_cpu_map *cpu_map; + struct perf_cpu cpu; + __u64 *data; - if (priv_size != ARM_SPE_AUXTRACE_PRIV_SIZE) + if (priv_size != arm_spe_info_priv_size(itr, session->evlist)) return -EINVAL; if (!session->evlist->core.nr_mmaps) return -EINVAL; + cpu_map = arm_spe_find_cpus(session->evlist); + if (!cpu_map) + return -EINVAL; + auxtrace_info->type = PERF_AUXTRACE_ARM_SPE; - auxtrace_info->priv[ARM_SPE_PMU_TYPE] = arm_spe_pmu->type; + auxtrace_info->priv[ARM_SPE_HEADER_VERSION] = ARM_SPE_HEADER_CURRENT_VERSION; + auxtrace_info->priv[ARM_SPE_HEADER_SIZE] = + ARM_SPE_AUXTRACE_PRIV_MAX - ARM_SPE_HEADER_VERSION; + auxtrace_info->priv[ARM_SPE_PMU_TYPE_V2] = arm_spe_pmu->type; + auxtrace_info->priv[ARM_SPE_CPUS_NUM] = perf_cpu_map__nr(cpu_map); + + offset = ARM_SPE_AUXTRACE_PRIV_MAX; + perf_cpu_map__for_each_cpu(cpu, i, cpu_map) { + assert(offset < priv_size); + data = &auxtrace_info->priv[offset]; + ret = arm_spe_save_cpu_header(itr, cpu, data); + if (ret < 0) + goto out; + offset += ret; + } - return 0; + ret = 0; +out: + perf_cpu_map__put(cpu_map); + return ret; } static void @@ -188,9 +290,9 @@ static int arm_spe_recording_options(struct auxtrace_record *itr, evlist__for_each_entry(evlist, evsel) { if (evsel__is_aux_event(evsel)) { - if (!strstarts(evsel->pmu_name, ARM_SPE_PMU_NAME)) { + if (!strstarts(evsel->pmu->name, ARM_SPE_PMU_NAME)) { pr_err("Found unexpected auxtrace event: %s\n", - evsel->pmu_name); + evsel->pmu->name); return -EINVAL; } opts->full_auxtrace = true; diff --git a/tools/perf/arch/arm64/util/dwarf-regs.c b/tools/perf/arch/arm64/util/dwarf-regs.c deleted file mode 100644 index 917b97d7c5d3..000000000000 --- a/tools/perf/arch/arm64/util/dwarf-regs.c +++ /dev/null @@ -1,92 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2010 Will Deacon, ARM Ltd. - */ - -#include <errno.h> -#include <stddef.h> -#include <string.h> -#include <dwarf-regs.h> -#include <linux/ptrace.h> /* for struct user_pt_regs */ -#include <linux/stringify.h> - -struct pt_regs_dwarfnum { - const char *name; - unsigned int dwarfnum; -}; - -#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num} -#define GPR_DWARFNUM_NAME(num) \ - {.name = __stringify(%x##num), .dwarfnum = num} -#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0} -#define DWARFNUM2OFFSET(index) \ - (index * sizeof((struct user_pt_regs *)0)->regs[0]) - -/* - * Reference: - * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0057b/IHI0057B_aadwarf64.pdf - */ -static const struct pt_regs_dwarfnum regdwarfnum_table[] = { - GPR_DWARFNUM_NAME(0), - GPR_DWARFNUM_NAME(1), - GPR_DWARFNUM_NAME(2), - GPR_DWARFNUM_NAME(3), - GPR_DWARFNUM_NAME(4), - GPR_DWARFNUM_NAME(5), - GPR_DWARFNUM_NAME(6), - GPR_DWARFNUM_NAME(7), - GPR_DWARFNUM_NAME(8), - GPR_DWARFNUM_NAME(9), - GPR_DWARFNUM_NAME(10), - GPR_DWARFNUM_NAME(11), - GPR_DWARFNUM_NAME(12), - GPR_DWARFNUM_NAME(13), - GPR_DWARFNUM_NAME(14), - GPR_DWARFNUM_NAME(15), - GPR_DWARFNUM_NAME(16), - GPR_DWARFNUM_NAME(17), - GPR_DWARFNUM_NAME(18), - GPR_DWARFNUM_NAME(19), - GPR_DWARFNUM_NAME(20), - GPR_DWARFNUM_NAME(21), - GPR_DWARFNUM_NAME(22), - GPR_DWARFNUM_NAME(23), - GPR_DWARFNUM_NAME(24), - GPR_DWARFNUM_NAME(25), - GPR_DWARFNUM_NAME(26), - GPR_DWARFNUM_NAME(27), - GPR_DWARFNUM_NAME(28), - GPR_DWARFNUM_NAME(29), - REG_DWARFNUM_NAME("%lr", 30), - REG_DWARFNUM_NAME("%sp", 31), - REG_DWARFNUM_END, -}; - -/** - * get_arch_regstr() - lookup register name from it's DWARF register number - * @n: the DWARF register number - * - * get_arch_regstr() returns the name of the register in struct - * regdwarfnum_table from it's DWARF register number. If the register is not - * found in the table, this returns NULL; - */ -const char *get_arch_regstr(unsigned int n) -{ - const struct pt_regs_dwarfnum *roff; - for (roff = regdwarfnum_table; roff->name != NULL; roff++) - if (roff->dwarfnum == n) - return roff->name; - return NULL; -} - -int regs_query_register_offset(const char *name) -{ - const struct pt_regs_dwarfnum *roff; - - for (roff = regdwarfnum_table; roff->name != NULL; roff++) - if (!strcmp(roff->name, name)) - return DWARFNUM2OFFSET(roff->dwarfnum); - return -EINVAL; -} diff --git a/tools/perf/arch/arm64/util/header.c b/tools/perf/arch/arm64/util/header.c index 741df3614a09..f445a2dd6293 100644 --- a/tools/perf/arch/arm64/util/header.c +++ b/tools/perf/arch/arm64/util/header.c @@ -14,73 +14,66 @@ #define MIDR_REVISION_MASK GENMASK(3, 0) #define MIDR_VARIANT_MASK GENMASK(23, 20) -static int _get_cpuid(char *buf, size_t sz, struct perf_cpu_map *cpus) +static int _get_cpuid(char *buf, size_t sz, struct perf_cpu cpu) { + char path[PATH_MAX]; + FILE *file; const char *sysfs = sysfs__mountpoint(); - struct perf_cpu cpu; - int idx, ret = EINVAL; + assert(cpu.cpu != -1); if (!sysfs || sz < MIDR_SIZE) return EINVAL; - perf_cpu_map__for_each_cpu(cpu, idx, cpus) { - char path[PATH_MAX]; - FILE *file; - - scnprintf(path, PATH_MAX, "%s/devices/system/cpu/cpu%d" MIDR, - sysfs, cpu.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); + scnprintf(path, PATH_MAX, "%s/devices/system/cpu/cpu%d" MIDR, sysfs, cpu.cpu); - /* got midr break loop */ - ret = 0; - break; + file = fopen(path, "r"); + if (!file) { + pr_debug("fopen failed for file %s\n", path); + return EINVAL; } - return ret; + if (!fgets(buf, MIDR_SIZE, file)) { + pr_debug("Failed to read file %s\n", path); + fclose(file); + return EINVAL; + } + fclose(file); + return 0; } -int get_cpuid(char *buf, size_t sz) +int get_cpuid(char *buf, size_t sz, struct perf_cpu cpu) { - struct perf_cpu_map *cpus = perf_cpu_map__new_online_cpus(); - int ret; + struct perf_cpu_map *cpus; + int idx; + if (cpu.cpu != -1) + return _get_cpuid(buf, sz, cpu); + + cpus = perf_cpu_map__new_online_cpus(); if (!cpus) return EINVAL; - ret = _get_cpuid(buf, sz, cpus); - - perf_cpu_map__put(cpus); + perf_cpu_map__for_each_cpu(cpu, idx, cpus) { + int ret = _get_cpuid(buf, sz, cpu); - return ret; + if (ret == 0) + return 0; + } + return EINVAL; } -char *get_cpuid_str(struct perf_pmu *pmu) +char *get_cpuid_str(struct perf_cpu cpu) { - char *buf = NULL; + char *buf = malloc(MIDR_SIZE); int res; - if (!pmu || !pmu->cpus) - return NULL; - - buf = malloc(MIDR_SIZE); if (!buf) return NULL; /* read midr from list of cpus mapped to this pmu */ - res = _get_cpuid(buf, MIDR_SIZE, pmu->cpus); + res = get_cpuid(buf, MIDR_SIZE, cpu); if (res) { - pr_err("failed to get cpuid string for PMU %s\n", pmu->name); + pr_err("failed to get cpuid string for CPU %d\n", cpu.cpu); free(buf); buf = NULL; } diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c index 2a4eab2d160e..895fb0d0610c 100644 --- a/tools/perf/arch/arm64/util/pmu.c +++ b/tools/perf/arch/arm64/util/pmu.c @@ -1,30 +1,11 @@ // SPDX-License-Identifier: GPL-2.0 -#include <internal/cpumap.h> -#include "../../../util/cpumap.h" -#include "../../../util/header.h" #include "../../../util/pmu.h" #include "../../../util/pmus.h" +#include "../../../util/tool_pmu.h" #include <api/fs/fs.h> -#include <math.h> -const struct pmu_metrics_table *pmu_metrics_table__find(void) -{ - struct perf_pmu *pmu; - - /* Metrics aren't currently supported on heterogeneous Arm systems */ - if (perf_pmus__num_core_pmus() > 1) - return NULL; - - /* Doesn't matter which one here because they'll all be the same */ - pmu = perf_pmus__find_core_pmu(); - if (pmu) - return perf_pmu__find_metrics_table(pmu); - - return NULL; -} - -double perf_pmu__cpu_slots_per_cycle(void) +u64 tool_pmu__cpu_slots_per_cycle(void) { char path[PATH_MAX]; unsigned long long slots = 0; @@ -41,5 +22,5 @@ double perf_pmu__cpu_slots_per_cycle(void) filename__read_ull(path, &slots); } - return slots ? (double)slots : NAN; + return slots; } diff --git a/tools/perf/arch/csky/Makefile b/tools/perf/arch/csky/Makefile deleted file mode 100644 index 88c08eed9c7b..000000000000 --- a/tools/perf/arch/csky/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif diff --git a/tools/perf/arch/csky/annotate/instructions.c b/tools/perf/arch/csky/annotate/instructions.c index 5337bfb7d5fc..14270311d215 100644 --- a/tools/perf/arch/csky/annotate/instructions.c +++ b/tools/perf/arch/csky/annotate/instructions.c @@ -43,6 +43,11 @@ static int csky__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->initialized = true; arch->objdump.comment_char = '/'; arch->associate_instruction_ops = csky__associate_ins_ops; - + arch->e_machine = EM_CSKY; +#if defined(__CSKYABIV2__) + arch->e_flags = EF_CSKY_ABIV2; +#else + arch->e_flags = EF_CSKY_ABIV1; +#endif return 0; } diff --git a/tools/perf/arch/csky/util/Build b/tools/perf/arch/csky/util/Build index 99d83f41bf43..5e6ea82c4202 100644 --- a/tools/perf/arch/csky/util/Build +++ b/tools/perf/arch/csky/util/Build @@ -1,4 +1,3 @@ perf-util-y += perf_regs.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/csky/util/dwarf-regs.c b/tools/perf/arch/csky/util/dwarf-regs.c deleted file mode 100644 index ca86ecaeacbb..000000000000 --- a/tools/perf/arch/csky/util/dwarf-regs.c +++ /dev/null @@ -1,49 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. -// Mapping of DWARF debug register numbers into register names. - -#include <stddef.h> -#include <dwarf-regs.h> - -#if defined(__CSKYABIV2__) -#define CSKY_MAX_REGS 73 -const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = { - /* r0 ~ r8 */ - "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", "%regs2", "%regs3", - /* r9 ~ r15 */ - "%regs4", "%regs5", "%regs6", "%regs7", "%regs8", "%regs9", "%sp", - "%lr", - /* r16 ~ r23 */ - "%exregs0", "%exregs1", "%exregs2", "%exregs3", "%exregs4", - "%exregs5", "%exregs6", "%exregs7", - /* r24 ~ r31 */ - "%exregs8", "%exregs9", "%exregs10", "%exregs11", "%exregs12", - "%exregs13", "%exregs14", "%tls", - "%pc", NULL, NULL, NULL, "%hi", "%lo", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - "%epc", -}; -#else -#define CSKY_MAX_REGS 57 -const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = { - /* r0 ~ r8 */ - "%sp", "%regs9", "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", - /* r9 ~ r15 */ - "%regs2", "%regs3", "%regs4", "%regs5", "%regs6", "%regs7", "%regs8", - "%lr", - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - "%epc", -}; -#endif - -const char *get_arch_regstr(unsigned int n) -{ - return (n < CSKY_MAX_REGS) ? csky_dwarf_regs_table[n] : NULL; -} diff --git a/tools/perf/arch/loongarch/Makefile b/tools/perf/arch/loongarch/Makefile index c89d6bb6b184..52544d59245b 100644 --- a/tools/perf/arch/loongarch/Makefile +++ b/tools/perf/arch/loongarch/Makefile @@ -1,8 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif -PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 PERF_HAVE_JITDUMP := 1 HAVE_KVM_STAT_SUPPORT := 1 diff --git a/tools/perf/arch/loongarch/annotate/instructions.c b/tools/perf/arch/loongarch/annotate/instructions.c index ab43b1ab51e3..70262d5f1444 100644 --- a/tools/perf/arch/loongarch/annotate/instructions.c +++ b/tools/perf/arch/loongarch/annotate/instructions.c @@ -131,6 +131,8 @@ int loongarch__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->associate_instruction_ops = loongarch__associate_ins_ops; arch->initialized = true; arch->objdump.comment_char = '#'; + arch->e_machine = EM_LOONGARCH; + arch->e_flags = 0; } return 0; diff --git a/tools/perf/arch/loongarch/util/Build b/tools/perf/arch/loongarch/util/Build index b6b97de48233..0aa31986ecb5 100644 --- a/tools/perf/arch/loongarch/util/Build +++ b/tools/perf/arch/loongarch/util/Build @@ -1,7 +1,6 @@ perf-util-y += header.o perf-util-y += perf_regs.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o perf-util-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o perf-util-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o diff --git a/tools/perf/arch/loongarch/util/dwarf-regs.c b/tools/perf/arch/loongarch/util/dwarf-regs.c deleted file mode 100644 index 0f6ebc387463..000000000000 --- a/tools/perf/arch/loongarch/util/dwarf-regs.c +++ /dev/null @@ -1,44 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * dwarf-regs.c : Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2020-2023 Loongson Technology Corporation Limited - */ - -#include <stdio.h> -#include <errno.h> /* for EINVAL */ -#include <string.h> /* for strcmp */ -#include <dwarf-regs.h> - -struct pt_regs_dwarfnum { - const char *name; - unsigned int dwarfnum; -}; - -static struct pt_regs_dwarfnum loongarch_gpr_table[] = { - {"%r0", 0}, {"%r1", 1}, {"%r2", 2}, {"%r3", 3}, - {"%r4", 4}, {"%r5", 5}, {"%r6", 6}, {"%r7", 7}, - {"%r8", 8}, {"%r9", 9}, {"%r10", 10}, {"%r11", 11}, - {"%r12", 12}, {"%r13", 13}, {"%r14", 14}, {"%r15", 15}, - {"%r16", 16}, {"%r17", 17}, {"%r18", 18}, {"%r19", 19}, - {"%r20", 20}, {"%r21", 21}, {"%r22", 22}, {"%r23", 23}, - {"%r24", 24}, {"%r25", 25}, {"%r26", 26}, {"%r27", 27}, - {"%r28", 28}, {"%r29", 29}, {"%r30", 30}, {"%r31", 31}, - {NULL, 0} -}; - -const char *get_arch_regstr(unsigned int n) -{ - n %= 32; - return loongarch_gpr_table[n].name; -} - -int regs_query_register_offset(const char *name) -{ - const struct pt_regs_dwarfnum *roff; - - for (roff = loongarch_gpr_table; roff->name != NULL; roff++) - if (!strcmp(roff->name, name)) - return roff->dwarfnum; - return -EINVAL; -} diff --git a/tools/perf/arch/loongarch/util/header.c b/tools/perf/arch/loongarch/util/header.c index d962dff55512..0c6d823334a2 100644 --- a/tools/perf/arch/loongarch/util/header.c +++ b/tools/perf/arch/loongarch/util/header.c @@ -70,7 +70,7 @@ out_free: return cpuid; } -int get_cpuid(char *buffer, size_t sz) +int get_cpuid(char *buffer, size_t sz, struct perf_cpu cpu __maybe_unused) { int ret = 0; char *cpuid = _get_cpuid(); @@ -90,7 +90,7 @@ out_free: return ret; } -char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused) +char *get_cpuid_str(struct perf_cpu cpu __maybe_unused) { return _get_cpuid(); } diff --git a/tools/perf/arch/mips/Makefile b/tools/perf/arch/mips/Makefile index cd0b011b3be5..827168f1077a 100644 --- a/tools/perf/arch/mips/Makefile +++ b/tools/perf/arch/mips/Makefile @@ -1,8 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif - # Syscall table generation for perf out := $(OUTPUT)arch/mips/include/generated/asm header := $(out)/syscalls_n64.c diff --git a/tools/perf/arch/mips/annotate/instructions.c b/tools/perf/arch/mips/annotate/instructions.c index 340993f2a897..b50b46c613d6 100644 --- a/tools/perf/arch/mips/annotate/instructions.c +++ b/tools/perf/arch/mips/annotate/instructions.c @@ -40,6 +40,8 @@ int mips__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->associate_instruction_ops = mips__associate_ins_ops; arch->initialized = true; arch->objdump.comment_char = '#'; + arch->e_machine = EM_MIPS; + arch->e_flags = 0; } return 0; diff --git a/tools/perf/arch/mips/util/Build b/tools/perf/arch/mips/util/Build index e4644f1e68a0..691fa2051958 100644 --- a/tools/perf/arch/mips/util/Build +++ b/tools/perf/arch/mips/util/Build @@ -1,3 +1,2 @@ perf-util-y += perf_regs.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o perf-util-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o diff --git a/tools/perf/arch/mips/util/dwarf-regs.c b/tools/perf/arch/mips/util/dwarf-regs.c deleted file mode 100644 index 25c13a91c2a7..000000000000 --- a/tools/perf/arch/mips/util/dwarf-regs.c +++ /dev/null @@ -1,38 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * dwarf-regs.c : Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2013 Cavium, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <stdio.h> -#include <dwarf-regs.h> - -static const char *mips_gpr_names[32] = { - "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9", - "$10", "$11", "$12", "$13", "$14", "$15", "$16", "$17", "$18", "$19", - "$20", "$21", "$22", "$23", "$24", "$25", "$26", "$27", "$28", "$29", - "$30", "$31" -}; - -const char *get_arch_regstr(unsigned int n) -{ - if (n < 32) - return mips_gpr_names[n]; - if (n == 64) - return "hi"; - if (n == 65) - return "lo"; - return NULL; -} diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile index bf6d323574f6..dc8f4fb8e324 100644 --- a/tools/perf/arch/powerpc/Makefile +++ b/tools/perf/arch/powerpc/Makefile @@ -1,10 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif - HAVE_KVM_STAT_SUPPORT := 1 -PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 PERF_HAVE_JITDUMP := 1 # diff --git a/tools/perf/arch/powerpc/annotate/instructions.c b/tools/perf/arch/powerpc/annotate/instructions.c index ede9eeade0ab..ca567cfdcbdb 100644 --- a/tools/perf/arch/powerpc/annotate/instructions.c +++ b/tools/perf/arch/powerpc/annotate/instructions.c @@ -255,7 +255,7 @@ static struct ins_ops *check_ppc_insn(struct disasm_line *dl) * is moved to r31. update_insn_state_powerpc tracks these state * changes */ -#ifdef HAVE_DWARF_SUPPORT +#ifdef HAVE_LIBDW_SUPPORT static void update_insn_state_powerpc(struct type_state *state, struct data_loc_info *dloc, Dwarf_Die * cu_die __maybe_unused, struct disasm_line *dl) @@ -300,7 +300,7 @@ static void update_insn_state_powerpc(struct type_state *state, insn_offset, src->reg1, dst->reg1); pr_debug_type_name(&tsr->type, tsr->kind); } -#endif /* HAVE_DWARF_SUPPORT */ +#endif /* HAVE_LIBDW_SUPPORT */ static int powerpc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) { @@ -309,6 +309,8 @@ static int powerpc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->associate_instruction_ops = powerpc__associate_instruction_ops; arch->objdump.comment_char = '#'; annotate_opts.show_asm_raw = true; + arch->e_machine = EM_PPC; + arch->e_flags = 0; } return 0; diff --git a/tools/perf/arch/powerpc/util/Build b/tools/perf/arch/powerpc/util/Build index 6c588ecdf3bd..ed82715080f9 100644 --- a/tools/perf/arch/powerpc/util/Build +++ b/tools/perf/arch/powerpc/util/Build @@ -7,8 +7,7 @@ perf-util-y += sym-handling.o perf-util-y += evsel.o perf-util-y += event.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o -perf-util-$(CONFIG_DWARF) += skip-callchain-idx.o +perf-util-$(CONFIG_LIBDW) += skip-callchain-idx.o perf-util-$(CONFIG_LIBUNWIND) += unwind-libunwind.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/powerpc/util/dwarf-regs.c b/tools/perf/arch/powerpc/util/dwarf-regs.c deleted file mode 100644 index 104c7ae5c433..000000000000 --- a/tools/perf/arch/powerpc/util/dwarf-regs.c +++ /dev/null @@ -1,153 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2010 Ian Munsie, IBM Corporation. - */ - -#include <stddef.h> -#include <errno.h> -#include <string.h> -#include <dwarf-regs.h> -#include <linux/ptrace.h> -#include <linux/kernel.h> -#include <linux/stringify.h> - -struct pt_regs_dwarfnum { - const char *name; - unsigned int dwarfnum; - unsigned int ptregs_offset; -}; - -#define REG_DWARFNUM_NAME(r, num) \ - {.name = __stringify(%)__stringify(r), .dwarfnum = num, \ - .ptregs_offset = offsetof(struct pt_regs, r)} -#define GPR_DWARFNUM_NAME(num) \ - {.name = __stringify(%gpr##num), .dwarfnum = num, \ - .ptregs_offset = offsetof(struct pt_regs, gpr[num])} -#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0, .ptregs_offset = 0} - -/* - * Reference: - * http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html - */ -static const struct pt_regs_dwarfnum regdwarfnum_table[] = { - GPR_DWARFNUM_NAME(0), - GPR_DWARFNUM_NAME(1), - GPR_DWARFNUM_NAME(2), - GPR_DWARFNUM_NAME(3), - GPR_DWARFNUM_NAME(4), - GPR_DWARFNUM_NAME(5), - GPR_DWARFNUM_NAME(6), - GPR_DWARFNUM_NAME(7), - GPR_DWARFNUM_NAME(8), - GPR_DWARFNUM_NAME(9), - GPR_DWARFNUM_NAME(10), - GPR_DWARFNUM_NAME(11), - GPR_DWARFNUM_NAME(12), - GPR_DWARFNUM_NAME(13), - GPR_DWARFNUM_NAME(14), - GPR_DWARFNUM_NAME(15), - GPR_DWARFNUM_NAME(16), - GPR_DWARFNUM_NAME(17), - GPR_DWARFNUM_NAME(18), - GPR_DWARFNUM_NAME(19), - GPR_DWARFNUM_NAME(20), - GPR_DWARFNUM_NAME(21), - GPR_DWARFNUM_NAME(22), - GPR_DWARFNUM_NAME(23), - GPR_DWARFNUM_NAME(24), - GPR_DWARFNUM_NAME(25), - GPR_DWARFNUM_NAME(26), - GPR_DWARFNUM_NAME(27), - GPR_DWARFNUM_NAME(28), - GPR_DWARFNUM_NAME(29), - GPR_DWARFNUM_NAME(30), - GPR_DWARFNUM_NAME(31), - REG_DWARFNUM_NAME(msr, 66), - REG_DWARFNUM_NAME(ctr, 109), - REG_DWARFNUM_NAME(link, 108), - REG_DWARFNUM_NAME(xer, 101), - REG_DWARFNUM_NAME(dar, 119), - REG_DWARFNUM_NAME(dsisr, 118), - REG_DWARFNUM_END, -}; - -/** - * get_arch_regstr() - lookup register name from it's DWARF register number - * @n: the DWARF register number - * - * get_arch_regstr() returns the name of the register in struct - * regdwarfnum_table from it's DWARF register number. If the register is not - * found in the table, this returns NULL; - */ -const char *get_arch_regstr(unsigned int n) -{ - const struct pt_regs_dwarfnum *roff; - for (roff = regdwarfnum_table; roff->name != NULL; roff++) - if (roff->dwarfnum == n) - return roff->name; - return NULL; -} - -int regs_query_register_offset(const char *name) -{ - const struct pt_regs_dwarfnum *roff; - for (roff = regdwarfnum_table; roff->name != NULL; roff++) - if (!strcmp(roff->name, name)) - return roff->ptregs_offset; - return -EINVAL; -} - -#define PPC_OP(op) (((op) >> 26) & 0x3F) -#define PPC_RA(a) (((a) >> 16) & 0x1f) -#define PPC_RT(t) (((t) >> 21) & 0x1f) -#define PPC_RB(b) (((b) >> 11) & 0x1f) -#define PPC_D(D) ((D) & 0xfffe) -#define PPC_DS(DS) ((DS) & 0xfffc) -#define OP_LD 58 -#define OP_STD 62 - -static int get_source_reg(u32 raw_insn) -{ - return PPC_RA(raw_insn); -} - -static int get_target_reg(u32 raw_insn) -{ - return PPC_RT(raw_insn); -} - -static int get_offset_opcode(u32 raw_insn) -{ - int opcode = PPC_OP(raw_insn); - - /* DS- form */ - if ((opcode == OP_LD) || (opcode == OP_STD)) - return PPC_DS(raw_insn); - else - return PPC_D(raw_insn); -} - -/* - * Fills the required fields for op_loc depending on if it - * is a source or target. - * D form: ins RT,D(RA) -> src_reg1 = RA, offset = D, dst_reg1 = RT - * DS form: ins RT,DS(RA) -> src_reg1 = RA, offset = DS, dst_reg1 = RT - * X form: ins RT,RA,RB -> src_reg1 = RA, src_reg2 = RB, dst_reg1 = RT - */ -void get_powerpc_regs(u32 raw_insn, int is_source, - struct annotated_op_loc *op_loc) -{ - if (is_source) - op_loc->reg1 = get_source_reg(raw_insn); - else - op_loc->reg1 = get_target_reg(raw_insn); - - if (op_loc->multi_regs) - op_loc->reg2 = PPC_RB(raw_insn); - - /* TODO: Implement offset handling for X Form */ - if ((op_loc->mem_ref) && (PPC_OP(raw_insn) != 31)) - op_loc->offset = get_offset_opcode(raw_insn); -} diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c index 6b00efd53638..c7df534dbf8f 100644 --- a/tools/perf/arch/powerpc/util/header.c +++ b/tools/perf/arch/powerpc/util/header.c @@ -10,9 +10,21 @@ #include "utils_header.h" #include "metricgroup.h" #include <api/fs/fs.h> +#include <sys/auxv.h> + +static bool is_compat_mode(void) +{ + u64 base_platform = getauxval(AT_BASE_PLATFORM); + u64 platform = getauxval(AT_PLATFORM); + + if (!strcmp((char *)platform, (char *)base_platform)) + return false; + + return true; +} int -get_cpuid(char *buffer, size_t sz) +get_cpuid(char *buffer, size_t sz, struct perf_cpu cpu __maybe_unused) { unsigned long pvr; int nb; @@ -30,11 +42,29 @@ get_cpuid(char *buffer, size_t sz) } char * -get_cpuid_str(struct perf_pmu *pmu __maybe_unused) +get_cpuid_str(struct perf_cpu cpu __maybe_unused) { char *bufp; + unsigned long pvr; + + /* + * IBM Power System supports compatible mode. That is + * Nth generation platform can support previous generation + * OS in a mode called compatibile mode. For ex. LPAR can be + * booted in a Power9 mode when the system is a Power10. + * + * In the compatible mode, care must be taken when generating + * PVR value. When read, PVR will be of the AT_BASE_PLATFORM + * To support generic events, return 0x00ffffff as pvr when + * booted in compat mode. Based on this pvr value, json will + * pick events from pmu-events/arch/powerpc/compat + */ + if (!is_compat_mode()) + pvr = mfspr(SPRN_PVR); + else + pvr = 0x00ffffff; - if (asprintf(&bufp, "0x%.8lx", mfspr(SPRN_PVR)) < 0) + if (asprintf(&bufp, "0x%.8lx", pvr) < 0) bufp = NULL; return bufp; diff --git a/tools/perf/arch/riscv/Makefile b/tools/perf/arch/riscv/Makefile index 90c3c476a242..18ad078000e2 100644 --- a/tools/perf/arch/riscv/Makefile +++ b/tools/perf/arch/riscv/Makefile @@ -1,6 +1,25 @@ -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif -PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 +# SPDX-License-Identifier: GPL-2.0 PERF_HAVE_JITDUMP := 1 HAVE_KVM_STAT_SUPPORT := 1 + +# +# Syscall table generation for perf +# + +out := $(OUTPUT)arch/riscv/include/generated/asm +header := $(out)/syscalls.c +incpath := $(srctree)/tools +sysdef := $(srctree)/tools/arch/riscv/include/uapi/asm/unistd.h +sysprf := $(srctree)/tools/perf/arch/riscv/entry/syscalls/ +systbl := $(sysprf)/mksyscalltbl + +# Create output directory if not already present +$(shell [ -d '$(out)' ] || mkdir -p '$(out)') + +$(header): $(sysdef) $(systbl) + $(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@ + +clean:: + $(call QUIET_CLEAN, riscv) $(RM) $(header) + +archheaders: $(header) diff --git a/tools/perf/arch/riscv/entry/syscalls/mksyscalltbl b/tools/perf/arch/riscv/entry/syscalls/mksyscalltbl new file mode 100755 index 000000000000..c59f5e852b97 --- /dev/null +++ b/tools/perf/arch/riscv/entry/syscalls/mksyscalltbl @@ -0,0 +1,47 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Generate system call table for perf. Derived from +# powerpc script. +# +# Copyright IBM Corp. 2017 +# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> +# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> +# Changed by: Kim Phillips <kim.phillips@arm.com> +# Changed by: Björn Töpel <bjorn@rivosinc.com> + +gcc=$1 +hostcc=$2 +incpath=$3 +input=$4 + +if ! test -r $input; then + echo "Could not read input file" >&2 + exit 1 +fi + +create_sc_table() +{ + local sc nr max_nr + + while read sc nr; do + printf "%s\n" " [$nr] = \"$sc\"," + max_nr=$nr + done + + echo "#define SYSCALLTBL_RISCV_MAX_ID $max_nr" +} + +create_table() +{ + echo "#include \"$input\"" + echo "static const char *const syscalltbl_riscv[] = {" + create_sc_table + echo "};" +} + +$gcc -E -dM -x c -I $incpath/include/uapi $input \ + |awk '$2 ~ "__NR" && $3 !~ "__NR3264_" { + sub("^#define __NR(3264)?_", ""); + print | "sort -k2 -n"}' \ + |create_table diff --git a/tools/perf/arch/riscv/include/dwarf-regs-table.h b/tools/perf/arch/riscv/include/dwarf-regs-table.h new file mode 100644 index 000000000000..a45b63a6d5a8 --- /dev/null +++ b/tools/perf/arch/riscv/include/dwarf-regs-table.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifdef DEFINE_DWARF_REGSTR_TABLE +/* This is included in perf/util/dwarf-regs.c */ + +#define REG_DWARFNUM_NAME(reg, idx) [idx] = "%" #reg + +static const char * const riscv_regstr_tbl[] = { + REG_DWARFNUM_NAME("%zero", 0), + REG_DWARFNUM_NAME("%ra", 1), + REG_DWARFNUM_NAME("%sp", 2), + REG_DWARFNUM_NAME("%gp", 3), + REG_DWARFNUM_NAME("%tp", 4), + REG_DWARFNUM_NAME("%t0", 5), + REG_DWARFNUM_NAME("%t1", 6), + REG_DWARFNUM_NAME("%t2", 7), + REG_DWARFNUM_NAME("%s0", 8), + REG_DWARFNUM_NAME("%s1", 9), + REG_DWARFNUM_NAME("%a0", 10), + REG_DWARFNUM_NAME("%a1", 11), + REG_DWARFNUM_NAME("%a2", 12), + REG_DWARFNUM_NAME("%a3", 13), + REG_DWARFNUM_NAME("%a4", 14), + REG_DWARFNUM_NAME("%a5", 15), + REG_DWARFNUM_NAME("%a6", 16), + REG_DWARFNUM_NAME("%a7", 17), + REG_DWARFNUM_NAME("%s2", 18), + REG_DWARFNUM_NAME("%s3", 19), + REG_DWARFNUM_NAME("%s4", 20), + REG_DWARFNUM_NAME("%s5", 21), + REG_DWARFNUM_NAME("%s6", 22), + REG_DWARFNUM_NAME("%s7", 23), + REG_DWARFNUM_NAME("%s8", 24), + REG_DWARFNUM_NAME("%s9", 25), + REG_DWARFNUM_NAME("%s10", 26), + REG_DWARFNUM_NAME("%s11", 27), + REG_DWARFNUM_NAME("%t3", 28), + REG_DWARFNUM_NAME("%t4", 29), + REG_DWARFNUM_NAME("%t5", 30), + REG_DWARFNUM_NAME("%t6", 31), +}; + +#endif diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build index f865cb0489ec..58a672246024 100644 --- a/tools/perf/arch/riscv/util/Build +++ b/tools/perf/arch/riscv/util/Build @@ -2,5 +2,4 @@ perf-util-y += perf_regs.o perf-util-y += header.o perf-util-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/riscv/util/dwarf-regs.c b/tools/perf/arch/riscv/util/dwarf-regs.c deleted file mode 100644 index cd0504c02e2e..000000000000 --- a/tools/perf/arch/riscv/util/dwarf-regs.c +++ /dev/null @@ -1,72 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. - * Mapping of DWARF debug register numbers into register names. - */ - -#include <stddef.h> -#include <errno.h> /* for EINVAL */ -#include <string.h> /* for strcmp */ -#include <dwarf-regs.h> - -struct pt_regs_dwarfnum { - const char *name; - unsigned int dwarfnum; -}; - -#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num} -#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0} - -struct pt_regs_dwarfnum riscv_dwarf_regs_table[] = { - REG_DWARFNUM_NAME("%zero", 0), - REG_DWARFNUM_NAME("%ra", 1), - REG_DWARFNUM_NAME("%sp", 2), - REG_DWARFNUM_NAME("%gp", 3), - REG_DWARFNUM_NAME("%tp", 4), - REG_DWARFNUM_NAME("%t0", 5), - REG_DWARFNUM_NAME("%t1", 6), - REG_DWARFNUM_NAME("%t2", 7), - REG_DWARFNUM_NAME("%s0", 8), - REG_DWARFNUM_NAME("%s1", 9), - REG_DWARFNUM_NAME("%a0", 10), - REG_DWARFNUM_NAME("%a1", 11), - REG_DWARFNUM_NAME("%a2", 12), - REG_DWARFNUM_NAME("%a3", 13), - REG_DWARFNUM_NAME("%a4", 14), - REG_DWARFNUM_NAME("%a5", 15), - REG_DWARFNUM_NAME("%a6", 16), - REG_DWARFNUM_NAME("%a7", 17), - REG_DWARFNUM_NAME("%s2", 18), - REG_DWARFNUM_NAME("%s3", 19), - REG_DWARFNUM_NAME("%s4", 20), - REG_DWARFNUM_NAME("%s5", 21), - REG_DWARFNUM_NAME("%s6", 22), - REG_DWARFNUM_NAME("%s7", 23), - REG_DWARFNUM_NAME("%s8", 24), - REG_DWARFNUM_NAME("%s9", 25), - REG_DWARFNUM_NAME("%s10", 26), - REG_DWARFNUM_NAME("%s11", 27), - REG_DWARFNUM_NAME("%t3", 28), - REG_DWARFNUM_NAME("%t4", 29), - REG_DWARFNUM_NAME("%t5", 30), - REG_DWARFNUM_NAME("%t6", 31), - REG_DWARFNUM_END, -}; - -#define RISCV_MAX_REGS ((sizeof(riscv_dwarf_regs_table) / \ - sizeof(riscv_dwarf_regs_table[0])) - 1) - -const char *get_arch_regstr(unsigned int n) -{ - return (n < RISCV_MAX_REGS) ? riscv_dwarf_regs_table[n].name : NULL; -} - -int regs_query_register_offset(const char *name) -{ - const struct pt_regs_dwarfnum *roff; - - for (roff = riscv_dwarf_regs_table; roff->name; roff++) - if (!strcmp(roff->name, name)) - return roff->dwarfnum; - return -EINVAL; -} diff --git a/tools/perf/arch/riscv/util/header.c b/tools/perf/arch/riscv/util/header.c index 1b29030021ee..4b839203d4a5 100644 --- a/tools/perf/arch/riscv/util/header.c +++ b/tools/perf/arch/riscv/util/header.c @@ -81,7 +81,7 @@ free: return cpuid; } -int get_cpuid(char *buffer, size_t sz) +int get_cpuid(char *buffer, size_t sz, struct perf_cpu cpu __maybe_unused) { char *cpuid = _get_cpuid(); int ret = 0; @@ -98,7 +98,7 @@ free: } char * -get_cpuid_str(struct perf_pmu *pmu __maybe_unused) +get_cpuid_str(struct perf_cpu cpu __maybe_unused) { return _get_cpuid(); } diff --git a/tools/perf/arch/riscv64/annotate/instructions.c b/tools/perf/arch/riscv64/annotate/instructions.c index 869a0eb28953..55cf911633f8 100644 --- a/tools/perf/arch/riscv64/annotate/instructions.c +++ b/tools/perf/arch/riscv64/annotate/instructions.c @@ -28,6 +28,8 @@ int riscv64__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->associate_instruction_ops = riscv64__associate_ins_ops; arch->initialized = true; arch->objdump.comment_char = '#'; + arch->e_machine = EM_RISCV; + arch->e_flags = 0; } return 0; diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile index 56994e63b43a..c431c21b11ef 100644 --- a/tools/perf/arch/s390/Makefile +++ b/tools/perf/arch/s390/Makefile @@ -1,9 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif HAVE_KVM_STAT_SUPPORT := 1 -PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 PERF_HAVE_JITDUMP := 1 # diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index eeac25cca699..c61193f1e096 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -166,6 +166,8 @@ static int s390__annotate_init(struct arch *arch, char *cpuid __maybe_unused) if (s390__cpuid_parse(arch, cpuid)) err = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING; } + arch->e_machine = EM_S390; + arch->e_flags = 0; } return err; diff --git a/tools/perf/arch/s390/util/Build b/tools/perf/arch/s390/util/Build index 1ac830030ff3..736c0ad09194 100644 --- a/tools/perf/arch/s390/util/Build +++ b/tools/perf/arch/s390/util/Build @@ -2,7 +2,6 @@ perf-util-y += header.o perf-util-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o perf-util-y += perf_regs.o -perf-util-$(CONFIG_DWARF) += dwarf-regs.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o perf-util-y += machine.o diff --git a/tools/perf/arch/s390/util/dwarf-regs.c b/tools/perf/arch/s390/util/dwarf-regs.c deleted file mode 100644 index dfddb3099bfa..000000000000 --- a/tools/perf/arch/s390/util/dwarf-regs.c +++ /dev/null @@ -1,43 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright IBM Corp. 2010, 2017 - * Author(s): 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> -#include "dwarf-regs-table.h" - -const char *get_arch_regstr(unsigned int 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/header.c b/tools/perf/arch/s390/util/header.c index 7933f6871c81..db54677a17d2 100644 --- a/tools/perf/arch/s390/util/header.c +++ b/tools/perf/arch/s390/util/header.c @@ -27,7 +27,7 @@ #define SYSINFO "/proc/sysinfo" #define SRVLVL "/proc/service_levels" -int get_cpuid(char *buffer, size_t sz) +int get_cpuid(char *buffer, size_t sz, struct perf_cpu cpu __maybe_unused) { char *cp, *line = NULL, *line2; char type[8], model[33], version[8], manufacturer[32], authorization[8]; @@ -137,11 +137,11 @@ skip_sysinfo: return (nbytes >= sz) ? ENOBUFS : 0; } -char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused) +char *get_cpuid_str(struct perf_cpu cpu) { char *buf = malloc(128); - if (buf && get_cpuid(buf, 128)) + if (buf && get_cpuid(buf, 128, cpu)) zfree(&buf); return buf; } diff --git a/tools/perf/arch/sh/Build b/tools/perf/arch/sh/Build deleted file mode 100644 index e63eabc2c8f4..000000000000 --- a/tools/perf/arch/sh/Build +++ /dev/null @@ -1 +0,0 @@ -perf-util-y += util/ diff --git a/tools/perf/arch/sh/Makefile b/tools/perf/arch/sh/Makefile deleted file mode 100644 index 88c08eed9c7b..000000000000 --- a/tools/perf/arch/sh/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif diff --git a/tools/perf/arch/sh/util/Build b/tools/perf/arch/sh/util/Build deleted file mode 100644 index 32f44fc4ab98..000000000000 --- a/tools/perf/arch/sh/util/Build +++ /dev/null @@ -1 +0,0 @@ -perf-util-$(CONFIG_DWARF) += dwarf-regs.o diff --git a/tools/perf/arch/sh/util/dwarf-regs.c b/tools/perf/arch/sh/util/dwarf-regs.c deleted file mode 100644 index 4b17fc86c73b..000000000000 --- a/tools/perf/arch/sh/util/dwarf-regs.c +++ /dev/null @@ -1,41 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2010 Matt Fleming <matt@console-pimps.org> - */ - -#include <stddef.h> -#include <dwarf-regs.h> - -/* - * Generic dwarf analysis helpers - */ - -#define SH_MAX_REGS 18 -const char *sh_regs_table[SH_MAX_REGS] = { - "r0", - "r1", - "r2", - "r3", - "r4", - "r5", - "r6", - "r7", - "r8", - "r9", - "r10", - "r11", - "r12", - "r13", - "r14", - "r15", - "pc", - "pr", -}; - -/* Return architecture dependent register string (for kprobe-tracer) */ -const char *get_arch_regstr(unsigned int n) -{ - return (n < SH_MAX_REGS) ? sh_regs_table[n] : NULL; -} diff --git a/tools/perf/arch/sparc/Build b/tools/perf/arch/sparc/Build deleted file mode 100644 index e63eabc2c8f4..000000000000 --- a/tools/perf/arch/sparc/Build +++ /dev/null @@ -1 +0,0 @@ -perf-util-y += util/ diff --git a/tools/perf/arch/sparc/Makefile b/tools/perf/arch/sparc/Makefile index 4031db72ba71..8b59ce8efb89 100644 --- a/tools/perf/arch/sparc/Makefile +++ b/tools/perf/arch/sparc/Makefile @@ -1,6 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif - PERF_HAVE_JITDUMP := 1 diff --git a/tools/perf/arch/sparc/annotate/instructions.c b/tools/perf/arch/sparc/annotate/instructions.c index 2614c010c235..68c31580ccfc 100644 --- a/tools/perf/arch/sparc/annotate/instructions.c +++ b/tools/perf/arch/sparc/annotate/instructions.c @@ -163,6 +163,8 @@ static int sparc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arch->initialized = true; arch->associate_instruction_ops = sparc__associate_instruction_ops; arch->objdump.comment_char = '#'; + arch->e_machine = EM_SPARC; + arch->e_flags = 0; } return 0; diff --git a/tools/perf/arch/sparc/util/Build b/tools/perf/arch/sparc/util/Build deleted file mode 100644 index 32f44fc4ab98..000000000000 --- a/tools/perf/arch/sparc/util/Build +++ /dev/null @@ -1 +0,0 @@ -perf-util-$(CONFIG_DWARF) += dwarf-regs.o diff --git a/tools/perf/arch/sparc/util/dwarf-regs.c b/tools/perf/arch/sparc/util/dwarf-regs.c deleted file mode 100644 index 1282cb2dc7bd..000000000000 --- a/tools/perf/arch/sparc/util/dwarf-regs.c +++ /dev/null @@ -1,39 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2010 David S. Miller <davem@davemloft.net> - */ - -#include <stddef.h> -#include <dwarf-regs.h> - -#define SPARC_MAX_REGS 96 - -const char *sparc_regs_table[SPARC_MAX_REGS] = { - "%g0", "%g1", "%g2", "%g3", "%g4", "%g5", "%g6", "%g7", - "%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%sp", "%o7", - "%l0", "%l1", "%l2", "%l3", "%l4", "%l5", "%l6", "%l7", - "%i0", "%i1", "%i2", "%i3", "%i4", "%i5", "%fp", "%i7", - "%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7", - "%f8", "%f9", "%f10", "%f11", "%f12", "%f13", "%f14", "%f15", - "%f16", "%f17", "%f18", "%f19", "%f20", "%f21", "%f22", "%f23", - "%f24", "%f25", "%f26", "%f27", "%f28", "%f29", "%f30", "%f31", - "%f32", "%f33", "%f34", "%f35", "%f36", "%f37", "%f38", "%f39", - "%f40", "%f41", "%f42", "%f43", "%f44", "%f45", "%f46", "%f47", - "%f48", "%f49", "%f50", "%f51", "%f52", "%f53", "%f54", "%f55", - "%f56", "%f57", "%f58", "%f59", "%f60", "%f61", "%f62", "%f63", -}; - -/** - * get_arch_regstr() - lookup register name from it's DWARF register number - * @n: the DWARF register number - * - * get_arch_regstr() returns the name of the register in struct - * regdwarfnum_table from it's DWARF register number. If the register is not - * found in the table, this returns NULL; - */ -const char *get_arch_regstr(unsigned int n) -{ - return (n < SPARC_MAX_REGS) ? sparc_regs_table[n] : NULL; -} diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile index 67b4969a6738..a6b6e0a9308a 100644 --- a/tools/perf/arch/x86/Makefile +++ b/tools/perf/arch/x86/Makefile @@ -1,9 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif HAVE_KVM_STAT_SUPPORT := 1 -PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 PERF_HAVE_JITDUMP := 1 ### diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c index 5caf5a17f03d..ae94b1f0b9cc 100644 --- a/tools/perf/arch/x86/annotate/instructions.c +++ b/tools/perf/arch/x86/annotate/instructions.c @@ -202,12 +202,13 @@ static int x86__annotate_init(struct arch *arch, char *cpuid) if (x86__cpuid_parse(arch, cpuid)) err = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING; } - + arch->e_machine = EM_X86_64; + arch->e_flags = 0; arch->initialized = true; return err; } -#ifdef HAVE_DWARF_SUPPORT +#ifdef HAVE_LIBDW_SUPPORT static void update_insn_state_x86(struct type_state *state, struct data_loc_info *dloc, Dwarf_Die *cu_die, struct disasm_line *dl) diff --git a/tools/perf/arch/x86/tests/intel-cqm.c b/tools/perf/arch/x86/tests/intel-cqm.c deleted file mode 100644 index 360a082fc928..000000000000 --- a/tools/perf/arch/x86/tests/intel-cqm.c +++ /dev/null @@ -1,128 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "tests/tests.h" -#include "cloexec.h" -#include "debug.h" -#include "evlist.h" -#include "evsel.h" -#include "arch-tests.h" -#include <internal/lib.h> // page_size - -#include <signal.h> -#include <sys/mman.h> -#include <sys/wait.h> -#include <errno.h> -#include <string.h> - -static pid_t spawn(void) -{ - pid_t pid; - - pid = fork(); - if (pid) - return pid; - - while(1) - sleep(5); - return 0; -} - -/* - * Create an event group that contains both a sampled hardware - * (cpu-cycles) and software (intel_cqm/llc_occupancy/) event. We then - * wait for the hardware perf counter to overflow and generate a PMI, - * which triggers an event read for both of the events in the group. - * - * Since reading Intel CQM event counters requires sending SMP IPIs, the - * CQM pmu needs to handle the above situation gracefully, and return - * the last read counter value to avoid triggering a WARN_ON_ONCE() in - * smp_call_function_many() caused by sending IPIs from NMI context. - */ -int test__intel_cqm_count_nmi_context(struct test_suite *test __maybe_unused, int subtest __maybe_unused) -{ - struct evlist *evlist = NULL; - struct evsel *evsel = NULL; - struct perf_event_attr pe; - int i, fd[2], flag, ret; - size_t mmap_len; - void *event; - pid_t pid; - int err = TEST_FAIL; - - flag = perf_event_open_cloexec_flag(); - - evlist = evlist__new(); - if (!evlist) { - pr_debug("evlist__new failed\n"); - return TEST_FAIL; - } - - ret = parse_event(evlist, "intel_cqm/llc_occupancy/"); - if (ret) { - pr_debug("parse_events failed, is \"intel_cqm/llc_occupancy/\" available?\n"); - err = TEST_SKIP; - goto out; - } - - evsel = evlist__first(evlist); - if (!evsel) { - pr_debug("evlist__first failed\n"); - goto out; - } - - memset(&pe, 0, sizeof(pe)); - pe.size = sizeof(pe); - - pe.type = PERF_TYPE_HARDWARE; - pe.config = PERF_COUNT_HW_CPU_CYCLES; - pe.read_format = PERF_FORMAT_GROUP; - - pe.sample_period = 128; - pe.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_READ; - - pid = spawn(); - - fd[0] = sys_perf_event_open(&pe, pid, -1, -1, flag); - if (fd[0] < 0) { - pr_debug("failed to open event\n"); - goto out; - } - - memset(&pe, 0, sizeof(pe)); - pe.size = sizeof(pe); - - pe.type = evsel->attr.type; - pe.config = evsel->attr.config; - - fd[1] = sys_perf_event_open(&pe, pid, -1, fd[0], flag); - if (fd[1] < 0) { - pr_debug("failed to open event\n"); - goto out; - } - - /* - * Pick a power-of-two number of pages + 1 for the meta-data - * page (struct perf_event_mmap_page). See tools/perf/design.txt. - */ - mmap_len = page_size * 65; - - event = mmap(NULL, mmap_len, PROT_READ, MAP_SHARED, fd[0], 0); - if (event == (void *)(-1)) { - pr_debug("failed to mmap %d\n", errno); - goto out; - } - - sleep(1); - - err = TEST_OK; - - munmap(event, mmap_len); - - for (i = 0; i < 2; i++) - close(fd[i]); - - kill(pid, SIGKILL); - wait(NULL); -out: - evlist__delete(evlist); - return err; -} diff --git a/tools/perf/arch/x86/tests/intel-pt-test.c b/tools/perf/arch/x86/tests/intel-pt-test.c index 09d61fa736e3..b217ed67cd4e 100644 --- a/tools/perf/arch/x86/tests/intel-pt-test.c +++ b/tools/perf/arch/x86/tests/intel-pt-test.c @@ -375,7 +375,7 @@ static int get_pt_caps(int cpu, struct pt_caps *caps) return 0; } -static bool is_hydrid(void) +static bool is_hybrid(void) { unsigned int eax, ebx, ecx, edx = 0; bool result; @@ -441,7 +441,7 @@ int test__intel_pt_hybrid_compat(struct test_suite *test, int subtest) int ret = TEST_OK; int cpu; - if (!is_hydrid()) { + if (!is_hybrid()) { test->test_cases[subtest].skip_reason = "not hybrid"; return TEST_SKIP; } diff --git a/tools/perf/arch/x86/util/Build b/tools/perf/arch/x86/util/Build index 2607ed5c4296..848327378694 100644 --- a/tools/perf/arch/x86/util/Build +++ b/tools/perf/arch/x86/util/Build @@ -10,10 +10,6 @@ perf-util-y += evlist.o perf-util-y += mem-events.o perf-util-y += evsel.o perf-util-y += iostat.o -perf-util-y += env.o - -perf-util-$(CONFIG_DWARF) += dwarf-regs.o -perf-util-$(CONFIG_BPF_PROLOGUE) += dwarf-regs.o perf-util-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/x86/util/auxtrace.c b/tools/perf/arch/x86/util/auxtrace.c index 354780ff1605..ecbf61a7eb3a 100644 --- a/tools/perf/arch/x86/util/auxtrace.c +++ b/tools/perf/arch/x86/util/auxtrace.c @@ -55,11 +55,12 @@ struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, int *err) { char buffer[64]; + struct perf_cpu cpu = perf_cpu_map__min(evlist->core.all_cpus); int ret; *err = 0; - ret = get_cpuid(buffer, sizeof(buffer)); + ret = get_cpuid(buffer, sizeof(buffer), cpu); if (ret) { *err = ret; return NULL; diff --git a/tools/perf/arch/x86/util/dwarf-regs.c b/tools/perf/arch/x86/util/dwarf-regs.c deleted file mode 100644 index 399c4a0a29d8..000000000000 --- a/tools/perf/arch/x86/util/dwarf-regs.c +++ /dev/null @@ -1,153 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * dwarf-regs.c : Mapping of DWARF debug register numbers into register names. - * Extracted from probe-finder.c - * - * Written by Masami Hiramatsu <mhiramat@redhat.com> - */ - -#include <stddef.h> -#include <errno.h> /* for EINVAL */ -#include <string.h> /* for strcmp */ -#include <linux/ptrace.h> /* for struct pt_regs */ -#include <linux/kernel.h> /* for offsetof */ -#include <dwarf-regs.h> - -/* - * See arch/x86/kernel/ptrace.c. - * Different from it: - * - * - Since struct pt_regs is defined differently for user and kernel, - * but we want to use 'ax, bx' instead of 'rax, rbx' (which is struct - * field name of user's pt_regs), we make REG_OFFSET_NAME to accept - * both string name and reg field name. - * - * - Since accessing x86_32's pt_regs from x86_64 building is difficult - * and vise versa, we simply fill offset with -1, so - * get_arch_regstr() still works but regs_query_register_offset() - * returns error. - * The only inconvenience caused by it now is that we are not allowed - * to generate BPF prologue for a x86_64 kernel if perf is built for - * x86_32. This is really a rare usecase. - * - * - Order is different from kernel's ptrace.c for get_arch_regstr(). Use - * the order defined by dwarf. - */ - -struct pt_regs_offset { - const char *name; - int offset; -}; - -#define REG_OFFSET_END {.name = NULL, .offset = 0} - -#ifdef __x86_64__ -# define REG_OFFSET_NAME_64(n, r) {.name = n, .offset = offsetof(struct pt_regs, r)} -# define REG_OFFSET_NAME_32(n, r) {.name = n, .offset = -1} -#else -# define REG_OFFSET_NAME_64(n, r) {.name = n, .offset = -1} -# define REG_OFFSET_NAME_32(n, r) {.name = n, .offset = offsetof(struct pt_regs, r)} -#endif - -/* TODO: switching by dwarf address size */ -#ifndef __x86_64__ -static const struct pt_regs_offset x86_32_regoffset_table[] = { - REG_OFFSET_NAME_32("%ax", eax), - REG_OFFSET_NAME_32("%cx", ecx), - REG_OFFSET_NAME_32("%dx", edx), - REG_OFFSET_NAME_32("%bx", ebx), - REG_OFFSET_NAME_32("$stack", esp), /* Stack address instead of %sp */ - REG_OFFSET_NAME_32("%bp", ebp), - REG_OFFSET_NAME_32("%si", esi), - REG_OFFSET_NAME_32("%di", edi), - REG_OFFSET_END, -}; - -#define regoffset_table x86_32_regoffset_table -#else -static const struct pt_regs_offset x86_64_regoffset_table[] = { - REG_OFFSET_NAME_64("%ax", rax), - REG_OFFSET_NAME_64("%dx", rdx), - REG_OFFSET_NAME_64("%cx", rcx), - REG_OFFSET_NAME_64("%bx", rbx), - REG_OFFSET_NAME_64("%si", rsi), - REG_OFFSET_NAME_64("%di", rdi), - REG_OFFSET_NAME_64("%bp", rbp), - REG_OFFSET_NAME_64("%sp", rsp), - REG_OFFSET_NAME_64("%r8", r8), - REG_OFFSET_NAME_64("%r9", r9), - REG_OFFSET_NAME_64("%r10", r10), - REG_OFFSET_NAME_64("%r11", r11), - REG_OFFSET_NAME_64("%r12", r12), - REG_OFFSET_NAME_64("%r13", r13), - REG_OFFSET_NAME_64("%r14", r14), - REG_OFFSET_NAME_64("%r15", r15), - REG_OFFSET_END, -}; - -#define regoffset_table x86_64_regoffset_table -#endif - -/* Minus 1 for the ending REG_OFFSET_END */ -#define ARCH_MAX_REGS ((sizeof(regoffset_table) / sizeof(regoffset_table[0])) - 1) - -/* Return architecture dependent register string (for kprobe-tracer) */ -const char *get_arch_regstr(unsigned int n) -{ - return (n < ARCH_MAX_REGS) ? regoffset_table[n].name : NULL; -} - -/* Reuse code from arch/x86/kernel/ptrace.c */ -/** - * regs_query_register_offset() - query register offset from its name - * @name: the name of a register - * - * regs_query_register_offset() returns the offset of a register in struct - * pt_regs from its name. If the name is invalid, this returns -EINVAL; - */ -int regs_query_register_offset(const char *name) -{ - const struct pt_regs_offset *roff; - for (roff = regoffset_table; roff->name != NULL; roff++) - if (!strcmp(roff->name, name)) - return roff->offset; - return -EINVAL; -} - -struct dwarf_regs_idx { - const char *name; - int idx; -}; - -static const struct dwarf_regs_idx x86_regidx_table[] = { - { "rax", 0 }, { "eax", 0 }, { "ax", 0 }, { "al", 0 }, - { "rdx", 1 }, { "edx", 1 }, { "dx", 1 }, { "dl", 1 }, - { "rcx", 2 }, { "ecx", 2 }, { "cx", 2 }, { "cl", 2 }, - { "rbx", 3 }, { "edx", 3 }, { "bx", 3 }, { "bl", 3 }, - { "rsi", 4 }, { "esi", 4 }, { "si", 4 }, { "sil", 4 }, - { "rdi", 5 }, { "edi", 5 }, { "di", 5 }, { "dil", 5 }, - { "rbp", 6 }, { "ebp", 6 }, { "bp", 6 }, { "bpl", 6 }, - { "rsp", 7 }, { "esp", 7 }, { "sp", 7 }, { "spl", 7 }, - { "r8", 8 }, { "r8d", 8 }, { "r8w", 8 }, { "r8b", 8 }, - { "r9", 9 }, { "r9d", 9 }, { "r9w", 9 }, { "r9b", 9 }, - { "r10", 10 }, { "r10d", 10 }, { "r10w", 10 }, { "r10b", 10 }, - { "r11", 11 }, { "r11d", 11 }, { "r11w", 11 }, { "r11b", 11 }, - { "r12", 12 }, { "r12d", 12 }, { "r12w", 12 }, { "r12b", 12 }, - { "r13", 13 }, { "r13d", 13 }, { "r13w", 13 }, { "r13b", 13 }, - { "r14", 14 }, { "r14d", 14 }, { "r14w", 14 }, { "r14b", 14 }, - { "r15", 15 }, { "r15d", 15 }, { "r15w", 15 }, { "r15b", 15 }, - { "rip", DWARF_REG_PC }, -}; - -int get_arch_regnum(const char *name) -{ - unsigned int i; - - if (*name != '%') - return -EINVAL; - - for (i = 0; i < ARRAY_SIZE(x86_regidx_table); i++) - if (!strcmp(x86_regidx_table[i].name, name + 1)) - return x86_regidx_table[i].idx; - return -ENOENT; -} diff --git a/tools/perf/arch/x86/util/env.c b/tools/perf/arch/x86/util/env.c deleted file mode 100644 index 3e537ffb1353..000000000000 --- a/tools/perf/arch/x86/util/env.c +++ /dev/null @@ -1,19 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "linux/string.h" -#include "util/env.h" -#include "env.h" - -bool x86__is_amd_cpu(void) -{ - struct perf_env env = { .total_mem = 0, }; - static int is_amd; /* 0: Uninitialized, 1: Yes, -1: No */ - - if (is_amd) - goto ret; - - perf_env__cpuid(&env); - is_amd = env.cpuid && strstarts(env.cpuid, "AuthenticAMD") ? 1 : -1; - perf_env__exit(&env); -ret: - return is_amd >= 1 ? true : false; -} diff --git a/tools/perf/arch/x86/util/env.h b/tools/perf/arch/x86/util/env.h deleted file mode 100644 index d78f080b6b3f..000000000000 --- a/tools/perf/arch/x86/util/env.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _X86_ENV_H -#define _X86_ENV_H - -bool x86__is_amd_cpu(void); - -#endif /* _X86_ENV_H */ diff --git a/tools/perf/arch/x86/util/evlist.c b/tools/perf/arch/x86/util/evlist.c index cebdd483149e..447a734e591c 100644 --- a/tools/perf/arch/x86/util/evlist.c +++ b/tools/perf/arch/x86/util/evlist.c @@ -1,91 +1,86 @@ // SPDX-License-Identifier: GPL-2.0 -#include <stdio.h> -#include "util/pmu.h" -#include "util/pmus.h" -#include "util/evlist.h" -#include "util/parse-events.h" -#include "util/event.h" +#include <string.h> +#include "../../../util/evlist.h" +#include "../../../util/evsel.h" #include "topdown.h" #include "evsel.h" -static int ___evlist__add_default_attrs(struct evlist *evlist, - struct perf_event_attr *attrs, - size_t nr_attrs) -{ - LIST_HEAD(head); - size_t i = 0; - - for (i = 0; i < nr_attrs; i++) - event_attr_init(attrs + i); - - if (perf_pmus__num_core_pmus() == 1) - return evlist__add_attrs(evlist, attrs, nr_attrs); - - for (i = 0; i < nr_attrs; i++) { - struct perf_pmu *pmu = NULL; - - if (attrs[i].type == PERF_TYPE_SOFTWARE) { - struct evsel *evsel = evsel__new(attrs + i); - - if (evsel == NULL) - goto out_delete_partial_list; - list_add_tail(&evsel->core.node, &head); - continue; - } - - while ((pmu = perf_pmus__scan_core(pmu)) != NULL) { - struct perf_cpu_map *cpus; - struct evsel *evsel; - - evsel = evsel__new(attrs + i); - if (evsel == NULL) - goto out_delete_partial_list; - evsel->core.attr.config |= (__u64)pmu->type << PERF_PMU_TYPE_SHIFT; - cpus = perf_cpu_map__get(pmu->cpus); - evsel->core.cpus = cpus; - evsel->core.own_cpus = perf_cpu_map__get(cpus); - evsel->pmu_name = strdup(pmu->name); - list_add_tail(&evsel->core.node, &head); - } - } - - evlist__splice_list_tail(evlist, &head); - - return 0; - -out_delete_partial_list: - { - struct evsel *evsel, *n; - - __evlist__for_each_entry_safe(&head, n, evsel) - evsel__delete(evsel); - } - return -1; -} - -int arch_evlist__add_default_attrs(struct evlist *evlist, - struct perf_event_attr *attrs, - size_t nr_attrs) -{ - if (!nr_attrs) - return 0; - - return ___evlist__add_default_attrs(evlist, attrs, nr_attrs); -} - int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs) { + /* + * Currently the following topdown events sequence are supported to + * move and regroup correctly. + * + * a. all events in a group + * perf stat -e "{instructions,topdown-retiring,slots}" -C0 sleep 1 + * WARNING: events were regrouped to match PMUs + * Performance counter stats for 'CPU(s) 0': + * 15,066,240 slots + * 1,899,760 instructions + * 2,126,998 topdown-retiring + * b. all events not in a group + * perf stat -e "instructions,topdown-retiring,slots" -C0 sleep 1 + * WARNING: events were regrouped to match PMUs + * Performance counter stats for 'CPU(s) 0': + * 2,045,561 instructions + * 17,108,370 slots + * 2,281,116 topdown-retiring + * c. slots event in a group but topdown metrics events outside the group + * perf stat -e "{instructions,slots},topdown-retiring" -C0 sleep 1 + * WARNING: events were regrouped to match PMUs + * Performance counter stats for 'CPU(s) 0': + * 20,323,878 slots + * 2,634,884 instructions + * 3,028,656 topdown-retiring + * d. slots event and topdown metrics events in two groups + * perf stat -e "{instructions,slots},{topdown-retiring}" -C0 sleep 1 + * WARNING: events were regrouped to match PMUs + * Performance counter stats for 'CPU(s) 0': + * 26,319,024 slots + * 2,427,791 instructions + * 2,683,508 topdown-retiring + * + * If slots event and topdown metrics events are not in same group, the + * topdown metrics events must be first event after the slots event group, + * otherwise topdown metrics events can't be regrouped correctly, e.g. + * + * a. perf stat -e "{instructions,slots},cycles,topdown-retiring" -C0 sleep 1 + * WARNING: events were regrouped to match PMUs + * Performance counter stats for 'CPU(s) 0': + * 17,923,134 slots + * 2,154,855 instructions + * 3,015,058 cycles + * <not supported> topdown-retiring + * + * If slots event and topdown metrics events are in two groups, the group which + * has topdown metrics events must contain only the topdown metrics event, + * otherwise topdown metrics event can't be regrouped correctly as well, e.g. + * + * a. perf stat -e "{instructions,slots},{topdown-retiring,cycles}" -C0 sleep 1 + * WARNING: events were regrouped to match PMUs + * Error: + * The sys_perf_event_open() syscall returned with 22 (Invalid argument) for + * event (topdown-retiring) + */ if (topdown_sys_has_perf_metrics() && (arch_evsel__must_be_in_group(lhs) || arch_evsel__must_be_in_group(rhs))) { /* Ensure the topdown slots comes first. */ - if (strcasestr(lhs->name, "slots") && !strcasestr(lhs->name, "uops_retired.slots")) + if (arch_is_topdown_slots(lhs)) return -1; - if (strcasestr(rhs->name, "slots") && !strcasestr(rhs->name, "uops_retired.slots")) + if (arch_is_topdown_slots(rhs)) return 1; - /* Followed by topdown events. */ - if (strcasestr(lhs->name, "topdown") && !strcasestr(rhs->name, "topdown")) + + /* + * Move topdown metrics events forward only when topdown metrics + * events are not in same group with previous slots event. If + * topdown metrics events are already in same group with slots + * event, do nothing. + */ + if (arch_is_topdown_metrics(lhs) && !arch_is_topdown_metrics(rhs) && + lhs->core.leader != rhs->core.leader) return -1; - if (!strcasestr(lhs->name, "topdown") && strcasestr(rhs->name, "topdown")) + if (!arch_is_topdown_metrics(lhs) && arch_is_topdown_metrics(rhs) && + lhs->core.leader != rhs->core.leader) return 1; } diff --git a/tools/perf/arch/x86/util/evsel.c b/tools/perf/arch/x86/util/evsel.c index 090d0f371891..3dd29ba2c23b 100644 --- a/tools/perf/arch/x86/util/evsel.c +++ b/tools/perf/arch/x86/util/evsel.c @@ -6,6 +6,7 @@ #include "util/pmu.h" #include "util/pmus.h" #include "linux/string.h" +#include "topdown.h" #include "evsel.h" #include "util/debug.h" #include "env.h" @@ -21,7 +22,8 @@ void arch_evsel__set_sample_weight(struct evsel *evsel) /* Check whether the evsel's PMU supports the perf metrics */ bool evsel__sys_has_perf_metrics(const struct evsel *evsel) { - const char *pmu_name = evsel->pmu_name ? evsel->pmu_name : "cpu"; + struct perf_pmu *pmu; + u32 type = evsel->core.attr.type; /* * The PERF_TYPE_RAW type is the core PMU type, e.g., "cpu" PMU @@ -31,11 +33,31 @@ bool evsel__sys_has_perf_metrics(const struct evsel *evsel) * Checking both the PERF_TYPE_RAW type and the slots event * should be good enough to detect the perf metrics feature. */ - if ((evsel->core.attr.type == PERF_TYPE_RAW) && - perf_pmus__have_event(pmu_name, "slots")) - return true; +again: + switch (type) { + case PERF_TYPE_HARDWARE: + case PERF_TYPE_HW_CACHE: + type = evsel->core.attr.config >> PERF_PMU_TYPE_SHIFT; + if (type) + goto again; + break; + case PERF_TYPE_RAW: + break; + default: + return false; + } + + pmu = evsel->pmu; + if (pmu && perf_pmu__is_fake(pmu)) + pmu = NULL; - return false; + if (!pmu) { + while ((pmu = perf_pmus__scan_core(pmu)) != NULL) { + if (pmu->type == PERF_TYPE_RAW) + break; + } + } + return pmu && perf_pmu__have_event(pmu, "slots"); } bool arch_evsel__must_be_in_group(const struct evsel *evsel) @@ -44,7 +66,7 @@ bool arch_evsel__must_be_in_group(const struct evsel *evsel) strcasestr(evsel->name, "uops_retired.slots")) return false; - return strcasestr(evsel->name, "topdown") || strcasestr(evsel->name, "slots"); + return arch_is_topdown_metrics(evsel) || arch_is_topdown_slots(evsel); } int arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size) @@ -63,7 +85,7 @@ int arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size) return scnprintf(bf, size, "%s", event_name); return scnprintf(bf, size, "%s/%s/", - evsel->pmu_name ? evsel->pmu_name : "cpu", + evsel->pmu ? evsel->pmu->name : "cpu", event_name); } @@ -108,7 +130,7 @@ int arch_evsel__open_strerror(struct evsel *evsel, char *msg, size_t size) return 0; if (!evsel->core.attr.precise_ip && - !(evsel->pmu_name && !strncmp(evsel->pmu_name, "ibs", 3))) + !(evsel->pmu && !strncmp(evsel->pmu->name, "ibs", 3))) return 0; /* More verbose IBS errors. */ diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c index a51444a77a5f..412977f8aa83 100644 --- a/tools/perf/arch/x86/util/header.c +++ b/tools/perf/arch/x86/util/header.c @@ -58,13 +58,12 @@ __get_cpuid(char *buffer, size_t sz, const char *fmt) } int -get_cpuid(char *buffer, size_t sz) +get_cpuid(char *buffer, size_t sz, struct perf_cpu cpu __maybe_unused) { return __get_cpuid(buffer, sz, "%s,%u,%u,%u$"); } -char * -get_cpuid_str(struct perf_pmu *pmu __maybe_unused) +char *get_cpuid_str(struct perf_cpu cpu __maybe_unused) { char *buf = malloc(128); diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index ea510a7486b1..8f235d8b67b6 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -75,7 +75,8 @@ static int intel_pt_parse_terms_with_default(const struct perf_pmu *pmu, goto out_free; attr.config = *config; - err = perf_pmu__config_terms(pmu, &attr, &terms, /*zero=*/true, /*err=*/NULL); + err = perf_pmu__config_terms(pmu, &attr, &terms, /*zero=*/true, /*apply_hardcoded=*/false, + /*err=*/NULL); if (err) goto out_free; diff --git a/tools/perf/arch/x86/util/iostat.c b/tools/perf/arch/x86/util/iostat.c index df7b5dfcc26a..366b44d0bb7e 100644 --- a/tools/perf/arch/x86/util/iostat.c +++ b/tools/perf/arch/x86/util/iostat.c @@ -444,7 +444,7 @@ void iostat_print_metric(struct perf_stat_config *config, struct evsel *evsel, iostat_value = (count->val - prev_count_val) / ((double) count->run / count->ena); } - out->print_metric(config, out->ctx, NULL, "%8.0f", iostat_metric, + out->print_metric(config, out->ctx, METRIC_THRESHOLD_UNKNOWN, "%8.0f", iostat_metric, iostat_value / (256 * 1024)); } diff --git a/tools/perf/arch/x86/util/pmu.c b/tools/perf/arch/x86/util/pmu.c index c3d89d6ba1bf..e0060dac2a9f 100644 --- a/tools/perf/arch/x86/util/pmu.c +++ b/tools/perf/arch/x86/util/pmu.c @@ -16,7 +16,7 @@ #include "../../../util/fncache.h" #include "../../../util/pmus.h" #include "mem-events.h" -#include "env.h" +#include "util/env.h" void perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused) { diff --git a/tools/perf/arch/x86/util/topdown.c b/tools/perf/arch/x86/util/topdown.c index 3f9a267d4501..f63747d0abdf 100644 --- a/tools/perf/arch/x86/util/topdown.c +++ b/tools/perf/arch/x86/util/topdown.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include "api/fs/fs.h" #include "util/evsel.h" +#include "util/evlist.h" #include "util/pmu.h" #include "util/pmus.h" #include "util/topdown.h" @@ -32,6 +33,31 @@ bool topdown_sys_has_perf_metrics(void) } #define TOPDOWN_SLOTS 0x0400 +bool arch_is_topdown_slots(const struct evsel *evsel) +{ + if (evsel->core.attr.config == TOPDOWN_SLOTS) + return true; + + return false; +} + +bool arch_is_topdown_metrics(const struct evsel *evsel) +{ + int config = evsel->core.attr.config; + const char *name_from_config; + struct perf_pmu *pmu; + + /* All topdown events have an event code of 0. */ + if ((config & 0xFF) != 0) + return false; + + pmu = evsel__find_pmu(evsel); + if (!pmu || !pmu->is_core) + return false; + + name_from_config = perf_pmu__name_from_config(pmu, config); + return name_from_config && strcasestr(name_from_config, "topdown"); +} /* * Check whether a topdown group supports sample-read. @@ -41,11 +67,24 @@ bool topdown_sys_has_perf_metrics(void) */ bool arch_topdown_sample_read(struct evsel *leader) { + struct evsel *evsel; + if (!evsel__sys_has_perf_metrics(leader)) return false; - if (leader->core.attr.config == TOPDOWN_SLOTS) - return true; + if (!arch_is_topdown_slots(leader)) + return false; + + /* + * If slots event as leader event but no topdown metric events + * in group, slots event should still sample as leader. + */ + evlist__for_each_entry(leader->evlist, evsel) { + if (evsel->core.leader != leader->core.leader) + return false; + if (evsel != leader && arch_is_topdown_metrics(evsel)) + return true; + } return false; } diff --git a/tools/perf/arch/x86/util/topdown.h b/tools/perf/arch/x86/util/topdown.h index 46bf9273e572..1bae9b1822d7 100644 --- a/tools/perf/arch/x86/util/topdown.h +++ b/tools/perf/arch/x86/util/topdown.h @@ -3,5 +3,7 @@ #define _TOPDOWN_H 1 bool topdown_sys_has_perf_metrics(void); +bool arch_is_topdown_slots(const struct evsel *evsel); +bool arch_is_topdown_metrics(const struct evsel *evsel); #endif diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c index e2d6cfe21057..3a439e4b12d2 100644 --- a/tools/perf/arch/x86/util/tsc.c +++ b/tools/perf/arch/x86/util/tsc.c @@ -24,9 +24,9 @@ u64 rdtsc(void) * ... * will return 3000000000. */ -static double cpuinfo_tsc_freq(void) +static u64 cpuinfo_tsc_freq(void) { - double result = 0; + u64 result = 0; FILE *cpuinfo; char *line = NULL; size_t len = 0; @@ -34,20 +34,22 @@ static double cpuinfo_tsc_freq(void) cpuinfo = fopen("/proc/cpuinfo", "r"); if (!cpuinfo) { pr_err("Failed to read /proc/cpuinfo for TSC frequency\n"); - return NAN; + return 0; } while (getline(&line, &len, cpuinfo) > 0) { if (!strncmp(line, "model name", 10)) { char *pos = strstr(line + 11, " @ "); + double float_result; - if (pos && sscanf(pos, " @ %lfGHz", &result) == 1) { - result *= 1000000000; + if (pos && sscanf(pos, " @ %lfGHz", &float_result) == 1) { + float_result *= 1000000000; + result = (u64)float_result; goto out; } } } out: - if (fpclassify(result) == FP_ZERO) + if (result == 0) pr_err("Failed to find TSC frequency in /proc/cpuinfo\n"); free(line); @@ -55,7 +57,7 @@ out: return result; } -double arch_get_tsc_freq(void) +u64 arch_get_tsc_freq(void) { unsigned int a, b, c, d, lvl; static bool cached; @@ -86,6 +88,6 @@ double arch_get_tsc_freq(void) return tsc; } - tsc = (double)c * (double)b / (double)a; + tsc = (u64)c * (u64)b / (u64)a; return tsc; } diff --git a/tools/perf/arch/xtensa/Build b/tools/perf/arch/xtensa/Build deleted file mode 100644 index e63eabc2c8f4..000000000000 --- a/tools/perf/arch/xtensa/Build +++ /dev/null @@ -1 +0,0 @@ -perf-util-y += util/ diff --git a/tools/perf/arch/xtensa/Makefile b/tools/perf/arch/xtensa/Makefile deleted file mode 100644 index 88c08eed9c7b..000000000000 --- a/tools/perf/arch/xtensa/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -ifndef NO_DWARF -PERF_HAVE_DWARF_REGS := 1 -endif diff --git a/tools/perf/arch/xtensa/util/Build b/tools/perf/arch/xtensa/util/Build deleted file mode 100644 index e813e618954b..000000000000 --- a/tools/perf/arch/xtensa/util/Build +++ /dev/null @@ -1 +0,0 @@ -perf-$(CONFIG_DWARF) += dwarf-regs.o diff --git a/tools/perf/arch/xtensa/util/dwarf-regs.c b/tools/perf/arch/xtensa/util/dwarf-regs.c deleted file mode 100644 index 12f5457300f5..000000000000 --- a/tools/perf/arch/xtensa/util/dwarf-regs.c +++ /dev/null @@ -1,21 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (c) 2015 Cadence Design Systems Inc. - */ - -#include <stddef.h> -#include <dwarf-regs.h> - -#define XTENSA_MAX_REGS 16 - -const char *xtensa_regs_table[XTENSA_MAX_REGS] = { - "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", - "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15", -}; - -const char *get_arch_regstr(unsigned int n) -{ - return n < XTENSA_MAX_REGS ? xtensa_regs_table[n] : NULL; -} |