From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ian Rogers <irogers@google.com>, Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
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>,
linux-toolchains@vger.kernel.org,
linux-trace-devel@vger.kernel.org
Subject: Re: [PATCH 09/23] perf annotate-data: Maintain variable type info
Date: Tue, 19 Mar 2024 13:34:05 -0700 [thread overview]
Message-ID: <CAM9d7chUL9P5xBqezArz5sh4e+PFemCPCPt+a+PphGXJJYjRmw@mail.gmail.com> (raw)
In-Reply-To: <ZfnVjPlo_L5l51Bq@x1>
On Tue, Mar 19, 2024 at 11:12 AM Arnaldo Carvalho de Melo
<acme@kernel.org> wrote:
>
> On Tue, Mar 19, 2024 at 10:44:31AM -0700, Namhyung Kim wrote:
> > On Tue, Mar 19, 2024 at 7:07 AM Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > > > +void exit_type_state(struct type_state *state)
> > > > +{
> > > > + struct type_state_stack *stack, *tmp;
> > > > +
> > > > + list_for_each_entry_safe(stack, tmp, &state->stack_vars, list) {
> > > > + list_del(&stack->list);
>
> > > list_del_init()?
>
> > Maybe.. but I'm not sure how much value it'd have as we free it right after.
>
> Usually the value is in catching use after free more quickly, i.e.
> someone may have a pointer to a freed list and then it would be able to
> traverse the list of freed elements.
Ok, then. :)
next prev parent reply other threads:[~2024-03-19 20:34 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-19 5:50 [PATCHSET 00/23] Remaining bits of data type profiling (v7) Namhyung Kim
2024-03-19 5:50 ` [PATCH 01/23] perf dwarf-aux: Remove unused pc argument Namhyung Kim
2024-03-19 13:43 ` Arnaldo Carvalho de Melo
2024-03-19 17:39 ` Namhyung Kim
2024-03-19 5:50 ` [PATCH 02/23] perf dwarf-aux: Add die_collect_vars() Namhyung Kim
2024-03-19 13:45 ` Arnaldo Carvalho de Melo
2024-03-19 5:50 ` [PATCH 03/23] perf dwarf-aux: Handle type transfer for memory access Namhyung Kim
2024-03-19 13:55 ` Arnaldo Carvalho de Melo
2024-03-19 17:41 ` Namhyung Kim
2024-03-19 5:50 ` [PATCH 04/23] perf dwarf-aux: Add die_find_func_rettype() Namhyung Kim
2024-03-19 13:56 ` Arnaldo Carvalho de Melo
2024-03-19 17:42 ` Namhyung Kim
2024-03-19 18:19 ` Arnaldo Carvalho de Melo
2024-03-19 20:33 ` Namhyung Kim
2024-03-19 5:50 ` [PATCH 05/23] perf map: Add map__objdump_2rip() Namhyung Kim
2024-03-19 5:50 ` [PATCH 06/23] perf annotate-data: Introduce struct data_loc_info Namhyung Kim
2024-03-19 5:50 ` [PATCH 07/23] perf annotate: Add annotate_get_basic_blocks() Namhyung Kim
2024-03-19 5:51 ` [PATCH 08/23] perf annotate-data: Add debug messages Namhyung Kim
2024-03-19 14:05 ` Arnaldo Carvalho de Melo
2024-03-19 5:51 ` [PATCH 09/23] perf annotate-data: Maintain variable type info Namhyung Kim
2024-03-19 14:07 ` Arnaldo Carvalho de Melo
2024-03-19 17:44 ` Namhyung Kim
2024-03-19 18:12 ` Arnaldo Carvalho de Melo
2024-03-19 20:34 ` Namhyung Kim [this message]
2024-03-19 5:51 ` [PATCH 10/23] perf annotate-data: Add update_insn_state() Namhyung Kim
2024-03-19 5:51 ` [PATCH 11/23] perf annotate-data: Add get_global_var_type() Namhyung Kim
2024-03-19 5:51 ` [PATCH 12/23] perf annotate-data: Handle global variable access Namhyung Kim
2024-03-19 5:51 ` [PATCH 13/23] perf annotate-data: Handle call instructions Namhyung Kim
2024-03-19 5:51 ` [PATCH 14/23] perf annotate-data: Implement instruction tracking Namhyung Kim
2024-03-19 5:51 ` [PATCH 15/23] perf annotate-data: Check register state for type Namhyung Kim
2024-03-19 5:51 ` [PATCH 16/23] perf annotate: Parse x86 segment register location Namhyung Kim
2024-03-19 5:51 ` [PATCH 17/23] perf annotate-data: Handle this-cpu variables in kernel Namhyung Kim
2024-03-19 5:51 ` [PATCH 18/23] perf annotate-data: Track instructions with a this-cpu variable Namhyung Kim
2024-03-19 5:51 ` [PATCH 19/23] perf annotate-data: Support general per-cpu access Namhyung Kim
2024-03-19 5:51 ` [PATCH 20/23] perf annotate-data: Handle ADD instructions Namhyung Kim
2024-03-19 5:51 ` [PATCH 21/23] perf annotate-data: Add stack canary type Namhyung Kim
2024-03-19 5:51 ` [PATCH 22/23] perf annotate-data: Add a cache for global variable types Namhyung Kim
2024-03-19 18:05 ` Namhyung Kim
2024-03-19 18:07 ` Arnaldo Carvalho de Melo
2024-03-19 18:09 ` Arnaldo Carvalho de Melo
2024-03-19 18:09 ` Namhyung Kim
2024-03-19 5:51 ` [PATCH 23/23] perf annotate-data: Do not retry for invalid types Namhyung Kim
2024-03-19 14:17 ` [PATCHSET 00/23] Remaining bits of data type profiling (v7) Arnaldo Carvalho de Melo
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