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gdb: LoongArch: Implement the iterate_over_regset_sections gdbarch method

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When execute the following command on LoongArch:

  make check-gdb TESTS="gdb.base/auxv.exp"

there exist the following unsupported and failed testcases:

  UNSUPPORTED: gdb.base/auxv.exp: gcore
  FAIL: gdb.base/auxv.exp: load core file for info auxv on native core dump
  FAIL: gdb.base/auxv.exp: info auxv on native core dump
  FAIL: gdb.base/auxv.exp: matching auxv data from live and core
  UNSUPPORTED: gdb.base/auxv.exp: info auxv on gcore-created dump
  UNSUPPORTED: gdb.base/auxv.exp: matching auxv data from live and gcore

we can see the following messages in gdb/testsuite/gdb.log:

  gcore /home/loongson/build.git/gdb/testsuite/outputs/gdb.base/auxv/auxv.gcore
  Target does not support core file generation.
  (gdb) UNSUPPORTED: gdb.base/auxv.exp: gcore

In order to fix the above issues, implement the iterate_over_regset_sections
gdbarch method to iterate over core file register note sections on LoongArch.

By the way, with this patch, the failed testcases in gdb.base/corefile.exp
and gdb.base/gcore.exp can also be fixed.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
This commit is contained in:
Tiezhu Yang
2022-05-23 15:53:06 +08:00
parent 01a62a6d5f
commit a6b446b222
1 changed files with 16 additions and 0 deletions
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16
gdb/loongarch-linux-tdep.c
View File

@ -20,6 +20,7 @@
#include "defs.h"
#include "glibc-tdep.h"
#include "gregset.h"
#include "inferior.h"
#include "linux-tdep.h"
#include "loongarch-tdep.h"
@ -163,6 +164,18 @@ static const struct tramp_frame loongarch_linux_rt_sigframe =
NULL
};
/* Implement the "iterate_over_regset_sections" gdbarch method. */
static void
loongarch_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
cb (".reg", sizeof (elf_gregset_t), sizeof (elf_gregset_t),
&loongarch_gregset, NULL, cb_data);
}
/* Initialize LoongArch Linux ABI info. */
static void
@ -186,6 +199,9 @@ loongarch_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* Prepend tramp frame unwinder for signal. */
tramp_frame_prepend_unwinder (gdbarch, &loongarch_linux_rt_sigframe);
/* Core file support. */
set_gdbarch_iterate_over_regset_sections (gdbarch, loongarch_iterate_over_regset_sections);
}
/* Initialize LoongArch Linux target support. */