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Add an arm-tls feature which includes the tpidruro register from CP15.

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This commit is contained in:
John Baldwin
2022-05-03 16:05:10 -07:00
parent 40c23d8803
commit 92d48a1e4e
12 changed files with 66 additions and 17 deletions
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25
gdb/arm-tdep.c
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@@ -240,7 +240,7 @@ static const char **valid_disassembly_styles;
static const char *disassembly_style;
/* All possible arm target descriptors. */
static struct target_desc *tdesc_arm_list[ARM_FP_TYPE_INVALID];
static struct target_desc *tdesc_arm_list[ARM_FP_TYPE_INVALID][2];
static struct target_desc *tdesc_arm_mprofile_list[ARM_M_TYPE_INVALID];
/* This is used to keep the bfd arch_info in sync with the disassembly
@@ -9606,6 +9606,7 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
int m_profile_psp_ns_regnum = -1;
int m_profile_msp_s_regnum = -1;
int m_profile_psp_s_regnum = -1;
int tls_regnum = 0;
/* If we have an object to base this architecture on, try to determine
its ABI. */
@@ -9973,6 +9974,19 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
}
/* Check for the TLS register feature. */
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.arm.tls");
if (feature != nullptr)
{
valid_p &= tdesc_numbered_register (feature, tdesc_data.get (),
register_count, "tpidruro");
if (!valid_p)
return nullptr;
tls_regnum = register_count;
register_count++;
}
/* Check for MVE after all the checks for GPR's, VFP and Neon.
MVE (Helium) is an M-profile extension. */
if (is_m)
@@ -10128,6 +10142,7 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->have_s_pseudos = have_s_pseudos;
tdep->have_q_pseudos = have_q_pseudos;
tdep->have_neon = have_neon;
tdep->tls_regnum = tls_regnum;
/* Adjust the MVE feature settings. */
if (have_mve)
@@ -14416,14 +14431,14 @@ arm_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
/* See arm-tdep.h. */
const target_desc *
arm_read_description (arm_fp_type fp_type)
arm_read_description (arm_fp_type fp_type, bool tls)
{
struct target_desc *tdesc = tdesc_arm_list[fp_type];
struct target_desc *tdesc = tdesc_arm_list[fp_type][tls];
if (tdesc == nullptr)
{
tdesc = arm_create_target_description (fp_type);
tdesc_arm_list[fp_type] = tdesc;
tdesc = arm_create_target_description (fp_type, tls);
tdesc_arm_list[fp_type][tls] = tdesc;
}
return tdesc;