From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Stephane Eranian <eranian@google.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Andi Kleen <ak@linux.intel.com>,
linux-trace-devel@vger.kernel.org,
linux-toolchains@vger.kernel.org
Subject: Re: [PATCH 32/52] perf dwarf-aux: Add die_find_variable_by_addr()
Date: Mon, 27 Nov 2023 19:07:53 -0300 [thread overview]
Message-ID: <ZWUTOdJukt/GNp2t@kernel.org> (raw)
In-Reply-To: <20231110000012.3538610-33-namhyung@kernel.org>
Em Thu, Nov 09, 2023 at 03:59:51PM -0800, Namhyung Kim escreveu:
> The die_find_variable_by_addr() is to find a variables in the given DIE
> using given (PC-relative) address. Global variables will have a
> location expression with DW_OP_addr which has an address so can simply
> compare it with the address.
>
> <1><143a7>: Abbrev Number: 2 (DW_TAG_variable)
> <143a8> DW_AT_name : loops_per_jiffy
> <143ac> DW_AT_type : <0x1cca>
> <143b0> DW_AT_external : 1
> <143b0> DW_AT_decl_file : 193
> <143b1> DW_AT_decl_line : 213
> <143b2> DW_AT_location : 9 byte block: 3 b0 46 41 82 ff ff ff ff
> (DW_OP_addr: ffffffff824146b0)
>
> Note that the type-offset should be calculated from the base address of
> the global variable.
>
> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Thanks, applied to perf-tools-next.
- Arnaldo
next prev parent reply other threads:[~2023-11-27 22:07 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-09 23:59 [RFC 00/52] perf tools: Introduce data type profiling (v2) Namhyung Kim
2023-11-09 23:59 ` [PATCH 01/52] perf annotate: Pass "-l" option to objdump conditionally Namhyung Kim
2023-11-09 23:59 ` [PATCH 02/52] perf annotate: Move raw_comment and raw_func_start Namhyung Kim
2023-11-09 23:59 ` [PATCH 03/52] perf tools: Add util/debuginfo.[ch] files Namhyung Kim
2023-11-09 23:59 ` [PATCH 04/52] perf dwarf-aux: Fix die_get_typename() for void * Namhyung Kim
2023-11-09 23:59 ` [PATCH 05/52] perf dwarf-aux: Move #ifdef code to the header file Namhyung Kim
2023-11-09 23:59 ` [PATCH 06/52] perf dwarf-aux: Add die_get_scopes() helper Namhyung Kim
2023-11-09 23:59 ` [PATCH 07/52] perf dwarf-aux: Add die_find_variable_by_reg() helper Namhyung Kim
2023-11-09 23:59 ` [PATCH 08/52] perf build: Add feature check for dwarf_getcfi() Namhyung Kim
2023-11-10 10:26 ` Masami Hiramatsu
2023-11-09 23:59 ` [PATCH 09/52] perf probe: Convert to check dwarf_getcfi feature Namhyung Kim
2023-11-10 10:25 ` Masami Hiramatsu
2023-11-09 23:59 ` [PATCH 10/52] perf dwarf-aux: Factor out die_get_typename_from_type() Namhyung Kim
2023-11-09 23:59 ` [PATCH 11/52] perf dwarf-regs: Add get_dwarf_regnum() Namhyung Kim
2023-11-09 23:59 ` [PATCH 12/52] perf annotate-data: Add find_data_type() Namhyung Kim
[not found] ` <CA+JHD90fkWNrQWO5DrHeV8mCmFyKKqJ8fV=KwztRi7TSw+8yDg@mail.gmail.com>
2023-11-20 20:43 ` Namhyung Kim
2023-11-09 23:59 ` [PATCH 13/52] perf annotate-data: Add dso->data_types tree Namhyung Kim
2023-12-21 20:10 ` Arnaldo Carvalho de Melo
2023-12-21 20:13 ` Arnaldo Carvalho de Melo
2023-12-21 20:32 ` Arnaldo Carvalho de Melo
2023-11-09 23:59 ` [PATCH 14/52] perf annotate: Factor out evsel__get_arch() Namhyung Kim
2023-12-23 14:14 ` Arnaldo Carvalho de Melo
2023-11-09 23:59 ` [PATCH 15/52] perf annotate: Check if operand has multiple regs Namhyung Kim
2023-11-09 23:59 ` [PATCH 16/52] perf annotate: Add annotate_get_insn_location() Namhyung Kim
2023-11-09 23:59 ` [PATCH 17/52] perf annotate: Implement hist_entry__get_data_type() Namhyung Kim
2023-11-09 23:59 ` [PATCH 18/52] perf report: Add 'type' sort key Namhyung Kim
2023-11-21 17:55 ` Arnaldo Carvalho de Melo
2023-11-22 18:49 ` Namhyung Kim
2023-11-22 19:54 ` Arnaldo Carvalho de Melo
2023-11-22 21:13 ` Namhyung Kim
2023-11-23 13:40 ` Arnaldo Carvalho de Melo
2023-11-09 23:59 ` [PATCH 19/52] perf report: Support data type profiling Namhyung Kim
2023-11-09 23:59 ` [PATCH 20/52] perf annotate-data: Add member field in the data type Namhyung Kim
2023-11-09 23:59 ` [PATCH 21/52] perf annotate-data: Update sample histogram for type Namhyung Kim
2023-11-09 23:59 ` [PATCH 22/52] perf report: Add 'typeoff' sort key Namhyung Kim
2023-11-09 23:59 ` [PATCH 23/52] perf report: Add 'symoff' " Namhyung Kim
2023-12-23 14:29 ` Arnaldo Carvalho de Melo
2023-11-09 23:59 ` [PATCH 24/52] perf annotate: Add --data-type option Namhyung Kim
2023-11-09 23:59 ` [PATCH 25/52] perf annotate: Support event group display Namhyung Kim
2023-11-09 23:59 ` [PATCH 26/52] perf annotate: Add --type-stat option for debugging Namhyung Kim
2023-11-09 23:59 ` [PATCH 27/52] perf annotate: Add --insn-stat " Namhyung Kim
2023-11-09 23:59 ` [PATCH 28/52] perf annotate-data: Parse 'lock' prefix from llvm-objdump Namhyung Kim
2023-11-09 23:59 ` [PATCH 29/52] perf annotate-data: Handle macro fusion on x86 Namhyung Kim
2023-11-09 23:59 ` [PATCH 30/52] perf annotate-data: Handle array style accesses Namhyung Kim
2023-11-09 23:59 ` [PATCH 31/52] perf annotate-data: Add stack operation pseudo type Namhyung Kim
2023-11-09 23:59 ` [PATCH 32/52] perf dwarf-aux: Add die_find_variable_by_addr() Namhyung Kim
2023-11-27 22:07 ` Arnaldo Carvalho de Melo [this message]
2023-11-09 23:59 ` [PATCH 33/52] perf annotate-data: Handle PC-relative addressing Namhyung Kim
2023-11-09 23:59 ` [PATCH 34/52] perf annotate-data: Support global variables Namhyung Kim
2023-11-09 23:59 ` [PATCH 35/52] perf dwarf-aux: Add die_get_cfa() Namhyung Kim
2023-11-09 23:59 ` [PATCH 36/52] perf annotate-data: Support stack variables Namhyung Kim
2023-11-09 23:59 ` [PATCH 37/52] perf dwarf-aux: Check allowed DWARF Ops Namhyung Kim
2023-11-09 23:59 ` [PATCH 38/52] perf dwarf-aux: Add die_collect_vars() Namhyung Kim
2023-11-09 23:59 ` [PATCH 39/52] perf dwarf-aux: Handle type transfer for memory access Namhyung Kim
2023-11-09 23:59 ` [PATCH 40/52] perf annotate-data: Introduce struct data_loc_info Namhyung Kim
2023-11-10 0:00 ` [PATCH 41/52] perf map: Add map__objdump_2rip() Namhyung Kim
2023-11-10 0:00 ` [PATCH 42/52] perf annotate: Add annotate_get_basic_blocks() Namhyung Kim
2023-11-10 0:00 ` [PATCH 43/52] perf annotate-data: Maintain variable type info Namhyung Kim
2023-11-10 0:00 ` [PATCH 44/52] perf annotate-data: Add update_insn_state() Namhyung Kim
2023-11-10 0:00 ` [PATCH 45/52] perf annotate-data: Handle global variable access Namhyung Kim
2023-11-10 0:00 ` [PATCH 46/52] perf annotate-data: Handle call instructions Namhyung Kim
2023-11-10 0:00 ` [PATCH 47/52] perf annotate-data: Implement instruction tracking Namhyung Kim
2023-11-10 0:00 ` [PATCH 48/52] perf annotate: Parse x86 segment register location Namhyung Kim
2023-11-10 0:00 ` [PATCH 49/52] perf annotate-data: Handle this-cpu variables in kernel Namhyung Kim
2023-11-10 0:00 ` [PATCH 50/52] perf annotate-data: Track instructions with a this-cpu variable Namhyung Kim
2023-11-10 0:00 ` [PATCH 51/52] perf annotate-data: Add stack canary type Namhyung Kim
2023-11-10 0:00 ` [PATCH 52/52] perf annotate-data: Add debug message Namhyung Kim
2023-11-10 12:05 ` [RFC 00/52] perf tools: Introduce data type profiling (v2) Arnaldo Carvalho de Melo
2023-11-11 2:27 ` Namhyung Kim
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