On Mon, Nov 6, 2023 at 7:25 AM Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > > On Wed, 11 Oct 2023 20:50:51 -0700 > Namhyung Kim <namhyung@xxxxxxxxxx> wrote: > > > 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. > > > > Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx> > > Looks good to me. > > Acked-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> > > BTW, for the global variable, you can also find it via maps. Can't you? What do you mean by 'via maps'? The map in perf? Thanks, Namhyung
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