@@ -3085,7 +3085,6 @@ aarch64_supports_hardware_single_step (void)
struct linux_target_ops the_low_target =
{
- NULL, /* fetch_register */
aarch64_get_pc,
aarch64_set_pc,
aarch64_breakpoint_kind_from_pc,
@@ -1027,7 +1027,6 @@ arm_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
arm_breakpoint_kind_from_pc,
@@ -135,7 +135,6 @@ bfin_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */
@@ -132,7 +132,6 @@ cris_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */
@@ -429,7 +429,6 @@ crisv32_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */
@@ -38,6 +38,8 @@ protected:
bool low_cannot_fetch_register (int regno) override;
bool low_cannot_store_register (int regno) override;
+
+ bool low_fetch_register (regcache *regcache, int regno) override;
};
/* The singleton target ops object. */
@@ -304,8 +306,8 @@ ia64_target::low_cannot_fetch_register (int regno)
#define IA64_FR0_REGNUM 128
#define IA64_FR1_REGNUM 129
-static int
-ia64_fetch_register (struct regcache *regcache, int regnum)
+bool
+ia64_target::low_fetch_register (regcache *regcache, int regnum)
{
/* r0 cannot be fetched but is always zero. */
if (regnum == IA64_GR0_REGNUM)
@@ -314,7 +316,7 @@ ia64_fetch_register (struct regcache *regcache, int regnum)
gdb_assert (sizeof (zero) == register_size (regcache->tdesc, regnum));
supply_register (regcache, regnum, zero);
- return 1;
+ return true;
}
/* fr0 cannot be fetched but is always zero. */
@@ -324,7 +326,7 @@ ia64_fetch_register (struct regcache *regcache, int regnum)
gdb_assert (sizeof (f_zero) == register_size (regcache->tdesc, regnum));
supply_register (regcache, regnum, f_zero);
- return 1;
+ return true;
}
/* fr1 cannot be fetched but is always one (1.0). */
@@ -335,10 +337,10 @@ ia64_fetch_register (struct regcache *regcache, int regnum)
gdb_assert (sizeof (f_one) == register_size (regcache->tdesc, regnum));
supply_register (regcache, regnum, f_one);
- return 1;
+ return true;
}
- return 0;
+ return false;
}
static struct usrregs_info ia64_usrregs_info =
@@ -367,7 +369,6 @@ ia64_target::low_arch_setup ()
struct linux_target_ops the_low_target = {
- ia64_fetch_register,
};
/* The linux target ops object. */
@@ -5569,10 +5569,9 @@ linux_process_target::fetch_registers (regcache *regcache, int regno)
if (regno == -1)
{
- if (the_low_target.fetch_register != NULL
- && regs_info->usrregs != NULL)
+ if (regs_info->usrregs != NULL)
for (regno = 0; regno < regs_info->usrregs->num_regs; regno++)
- (*the_low_target.fetch_register) (regcache, regno);
+ low_fetch_register (regcache, regno);
all = regsets_fetch_inferior_registers (regs_info->regsets_info, regcache);
if (regs_info->usrregs != NULL)
@@ -5580,8 +5579,7 @@ linux_process_target::fetch_registers (regcache *regcache, int regno)
}
else
{
- if (the_low_target.fetch_register != NULL
- && (*the_low_target.fetch_register) (regcache, regno))
+ if (low_fetch_register (regcache, regno))
return;
use_regsets = linux_register_in_regsets (regs_info, regno);
@@ -5618,6 +5616,11 @@ linux_process_target::store_registers (regcache *regcache, int regno)
}
}
+bool
+linux_process_target::low_fetch_register (regcache *regcache, int regno)
+{
+ return false;
+}
/* A wrapper for the read_memory target op. */
@@ -131,13 +131,6 @@ struct lwp_info;
struct linux_target_ops
{
- /* Hook to fetch a register in some non-standard way. Used for
- example by backends that have read-only registers with hardcoded
- values (e.g., IA64's gr0/fr0/fr1). Returns true if register
- REGNO was supplied, false if not, and we should fallback to the
- standard ptrace methods. */
- int (*fetch_register) (struct regcache *regcache, int regno);
-
CORE_ADDR (*get_pc) (struct regcache *regcache);
void (*set_pc) (struct regcache *regcache, CORE_ADDR newpc);
@@ -598,6 +591,13 @@ class linux_process_target : public process_stratum_target
virtual bool low_cannot_fetch_register (int regno) = 0;
virtual bool low_cannot_store_register (int regno) = 0;
+
+ /* Hook to fetch a register in some non-standard way. Used for
+ example by backends that have read-only registers with hardcoded
+ values (e.g., IA64's gr0/fr0/fr1). Returns true if register
+ REGNO was supplied, false if not, and we should fallback to the
+ standard ptrace methods. */
+ virtual bool low_fetch_register (regcache *regcache, int regno);
};
extern linux_process_target *the_linux_target;
@@ -134,7 +134,6 @@ m32r_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_from_pc */
@@ -229,7 +229,6 @@ m68k_supports_hardware_single_step (void)
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */
@@ -40,6 +40,8 @@ protected:
bool low_cannot_fetch_register (int regno) override;
bool low_cannot_store_register (int regno) override;
+
+ bool low_fetch_register (regcache *regcache, int regno) override;
};
/* The singleton target ops object. */
@@ -263,18 +265,18 @@ mips_target::low_cannot_store_register (int regno)
return false;
}
-static int
-mips_fetch_register (struct regcache *regcache, int regno)
+bool
+mips_target::low_fetch_register (regcache *regcache, int regno)
{
const struct target_desc *tdesc = current_process ()->tdesc;
if (find_regno (tdesc, "r0") == regno)
{
supply_register_zeroed (regcache, regno);
- return 1;
+ return true;
}
- return 0;
+ return false;
}
static CORE_ADDR
@@ -950,7 +952,6 @@ mips_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- mips_fetch_register,
mips_get_pc,
mips_set_pc,
NULL, /* breakpoint_kind_from_pc */
@@ -251,7 +251,6 @@ nios2_target::get_regs_info ()
struct linux_target_ops the_low_target =
{
- NULL,
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */
@@ -3392,7 +3392,6 @@ ppc_get_ipa_tdesc_idx (void)
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
ppc_get_pc,
ppc_set_pc,
NULL, /* breakpoint_kind_from_pc */
@@ -45,6 +45,8 @@ protected:
bool low_cannot_fetch_register (int regno) override;
bool low_cannot_store_register (int regno) override;
+
+ bool low_fetch_register (regcache *regcache, int regno) override;
};
/* The singleton target ops object. */
@@ -188,17 +190,17 @@ riscv_target::get_regs_info ()
return &riscv_regs;
}
-/* Implementation of linux_target_ops method "fetch_register". */
+/* Implementation of linux target ops method "low_fetch_register". */
-static int
-riscv_fetch_register (struct regcache *regcache, int regno)
+bool
+riscv_target::low_fetch_register (regcache *regcache, int regno)
{
const struct target_desc *tdesc = regcache->tdesc;
if (regno != find_regno (tdesc, "zero"))
- return 0;
+ return false;
supply_register_zeroed (regcache, regno);
- return 1;
+ return true;
}
/* Implementation of linux_target_ops method "get_pc". */
@@ -291,7 +293,6 @@ riscv_breakpoint_at (CORE_ADDR pc)
/* RISC-V/Linux target operations. */
struct linux_target_ops the_low_target =
{
- riscv_fetch_register,
riscv_get_pc,
riscv_set_pc,
riscv_breakpoint_kind_from_pc,
@@ -2812,7 +2812,6 @@ s390_emit_ops (void)
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
s390_get_pc,
s390_set_pc,
NULL, /* breakpoint_kind_from_pc */
@@ -164,7 +164,6 @@ sh_target::low_arch_setup ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */
@@ -319,7 +319,6 @@ sparc_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_64bit,
/* No sparc_set_pc is needed. */
NULL,
@@ -407,7 +407,6 @@ tic6x_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
tic6x_get_pc,
tic6x_set_pc,
NULL, /* breakpoint_kind_from_pc */
@@ -196,7 +196,6 @@ tile_supports_hardware_single_step (void)
struct linux_target_ops the_low_target =
{
- NULL,
linux_get_pc_64bit,
linux_set_pc_64bit,
NULL, /* breakpoint_kind_from_pc */
@@ -2885,7 +2885,6 @@ x86_get_ipa_tdesc_idx (void)
struct linux_target_ops the_low_target =
{
- NULL, /* fetch_register */
x86_get_pc,
x86_set_pc,
NULL, /* breakpoint_kind_from_pc */
@@ -302,7 +302,6 @@ xtensa_target::get_regs_info ()
}
struct linux_target_ops the_low_target = {
- NULL, /* fetch_register */
linux_get_pc_32bit,
linux_set_pc_32bit,
NULL, /* breakpoint_kind_from_pc */