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9d5da30e4a
This will allow writing formulas that are conditional on a specific
CPU type or CPU version. It calls through to the existing
strcmp_cpuid_str() function in Perf which has a default weak version,
and an arch specific version for x86 and arm64.
The function takes an 'ID' type value, which is a string. But in this
case Arm CPU IDs are hex numbers prefixed with '0x'. metric.py
assumes strings are only used by event names, and that they can't start
with a number ('0'), so an additional change has to be made to the
regex to convert hex numbers back to 'ID' types.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Haixin Yu <yuhaixin.yhx@linux.alibaba.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Forrington <nick.forrington@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230816114841.1679234-5-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
60 lines
2 KiB
C
60 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef PARSE_CTX_H
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#define PARSE_CTX_H 1
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struct hashmap;
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struct metric_ref;
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struct expr_scanner_ctx {
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char *user_requested_cpu_list;
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int runtime;
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bool system_wide;
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bool is_test;
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};
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struct expr_parse_ctx {
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struct hashmap *ids;
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struct expr_scanner_ctx sctx;
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};
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struct expr_id_data;
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struct hashmap *ids__new(void);
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void ids__free(struct hashmap *ids);
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int ids__insert(struct hashmap *ids, const char *id);
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/*
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* Union two sets of ids (hashmaps) and construct a third, freeing ids1 and
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* ids2.
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*/
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struct hashmap *ids__union(struct hashmap *ids1, struct hashmap *ids2);
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struct expr_parse_ctx *expr__ctx_new(void);
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void expr__ctx_clear(struct expr_parse_ctx *ctx);
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void expr__ctx_free(struct expr_parse_ctx *ctx);
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void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
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int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
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int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
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int expr__add_id_val_source_count(struct expr_parse_ctx *ctx, const char *id,
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double val, int source_count);
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int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
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int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
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struct expr_id_data **data);
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bool expr__subset_of_ids(struct expr_parse_ctx *haystack,
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struct expr_parse_ctx *needles);
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int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id,
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struct expr_id_data **datap);
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int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
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const char *expr);
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int expr__find_ids(const char *expr, const char *one,
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struct expr_parse_ctx *ids);
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double expr_id_data__value(const struct expr_id_data *data);
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double expr_id_data__source_count(const struct expr_id_data *data);
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double expr__get_literal(const char *literal, const struct expr_scanner_ctx *ctx);
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double expr__has_event(const struct expr_parse_ctx *ctx, bool compute_ids, const char *id);
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double expr__strcmp_cpuid_str(const struct expr_parse_ctx *ctx, bool compute_ids, const char *id);
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#endif
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