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Read the tpidr register from NT_ARM_TLS core dump notes on FreeBSD/Aarch64.

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This commit is contained in:
John Baldwin
2022-05-03 16:05:10 -07:00
parent 414d5848bb
commit 0a765c1a8e
2 changed files with 37 additions and 0 deletions
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34
gdb/aarch64-fbsd-tdep.c
View File

@ -142,10 +142,42 @@ aarch64_fbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
void *cb_data, void *cb_data,
const struct regcache *regcache) const struct regcache *regcache)
{ {
aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
cb (".reg", AARCH64_FBSD_SIZEOF_GREGSET, AARCH64_FBSD_SIZEOF_GREGSET, cb (".reg", AARCH64_FBSD_SIZEOF_GREGSET, AARCH64_FBSD_SIZEOF_GREGSET,
&aarch64_fbsd_gregset, NULL, cb_data); &aarch64_fbsd_gregset, NULL, cb_data);
cb (".reg2", AARCH64_FBSD_SIZEOF_FPREGSET, AARCH64_FBSD_SIZEOF_FPREGSET, cb (".reg2", AARCH64_FBSD_SIZEOF_FPREGSET, AARCH64_FBSD_SIZEOF_FPREGSET,
&aarch64_fbsd_fpregset, NULL, cb_data); &aarch64_fbsd_fpregset, NULL, cb_data);
if (tdep->has_tls ())
{
const struct regcache_map_entry aarch64_fbsd_tls_regmap[] =
{
{ 1, tdep->tls_regnum, 8 },
{ 0 }
};
const struct regset aarch64_fbsd_tls_regset =
{
aarch64_fbsd_tls_regmap,
regcache_supply_regset, regcache_collect_regset
};
cb (".reg-aarch-tls", AARCH64_FBSD_SIZEOF_TLSREGSET,
AARCH64_FBSD_SIZEOF_TLSREGSET, &aarch64_fbsd_tls_regset,
"TLS register", cb_data);
}
}
/* Implement the "core_read_description" gdbarch method. */
static const struct target_desc *
aarch64_fbsd_core_read_description (struct gdbarch *gdbarch,
struct target_ops *target, bfd *abfd)
{
asection *tls = bfd_get_section_by_name (abfd, ".reg-aarch-tls");
return aarch64_read_description (0, false, false, tls != nullptr);
} }
/* Implement the 'init_osabi' method of struct gdb_osabi_handler. */ /* Implement the 'init_osabi' method of struct gdb_osabi_handler. */
@ -168,6 +200,8 @@ aarch64_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_iterate_over_regset_sections set_gdbarch_iterate_over_regset_sections
(gdbarch, aarch64_fbsd_iterate_over_regset_sections); (gdbarch, aarch64_fbsd_iterate_over_regset_sections);
set_gdbarch_core_read_description (gdbarch,
aarch64_fbsd_core_read_description);
} }
void _initialize_aarch64_fbsd_tdep (); void _initialize_aarch64_fbsd_tdep ();

3
gdb/aarch64-fbsd-tdep.h
View File

@ -32,6 +32,9 @@
alignment. */ alignment. */
#define AARCH64_FBSD_SIZEOF_FPREGSET (33 * V_REGISTER_SIZE) #define AARCH64_FBSD_SIZEOF_FPREGSET (33 * V_REGISTER_SIZE)
/* The TLS regset consists of a single register. */
#define AARCH64_FBSD_SIZEOF_TLSREGSET (X_REGISTER_SIZE)
extern const struct regset aarch64_fbsd_gregset; extern const struct regset aarch64_fbsd_gregset;
extern const struct regset aarch64_fbsd_fpregset; extern const struct regset aarch64_fbsd_fpregset;