perf annotate-data: Update debug messages

In check_matching_type(), it'd be easier to display the typename in
question if it's available.

For example, check out the line starts with 'chk'.
  -----------------------------------------------------------
  find data type for 0x10(reg0) at cpuacct_charge+0x13
  CU for kernel/sched/build_utility.c (die:0x137ee0b)
  frame base: cfa=1 fbreg=7
  scope: [3/3] (die:13d9632)
  bb: [c - 13]
  var [c] reg5 type='struct task_struct*' size=0x8 (die:0x1381230)
  mov [c] 0xdf8(reg5) -> reg0 type='struct css_set*' size=0x8 (die:0x1385c56)
  chk [13] reg0 offset=0x10 ok=1 kind=1 (struct css_set*) : Good!         <<<--- here
  found by insn track: 0x10(reg0) type-offset=0x10
  final result:  type='struct css_set' size=0x250 (die:0x1385b0e)

Another example:
  -----------------------------------------------------------
  find data type for 0x8(reg0) at menu_select+0x279
  CU for drivers/cpuidle/governors/menu.c (die:0x7b0fe79)
  frame base: cfa=1 fbreg=7
  scope: [2/2] (die:7b11010)
  bb: [273 - 277]
  bb: [279 - 279]
  chk [279] reg0 offset=0x8 ok=0 kind=0 cfa : no type information
  scope: [1/2] (die:7b10cbc)
  bb: [0 - 64]
  ...
  mov [26a] imm=0xffffffff -> reg15
  bb: [273 - 277]
  bb: [279 - 279]
  chk [279] reg0 offset=0x8 ok=1 kind=1 (long long unsigned int) : no/void pointer    <<<--- here
  final result: no/void pointer

Also change some places to print negative offsets properly.

Before:
  -----------------------------------------------------------
  find data type for 0xffffff40(reg6) at __tcp_transmit_skb+0x58

After:
  -----------------------------------------------------------
  find data type for -0xc0(reg6) at __tcp_transmit_skb+0x58

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions