/* Ravenscar PowerPC target support.
- Copyright (C) 2011-2018 Free Software Foundation, Inc.
+ Copyright (C) 2011-2023 Free Software Foundation, Inc.
This file is part of GDB.
NO_OFFSET, 176
};
-/* The register layout info. */
-
-struct ravenscar_reg_info
-{
- /* A table providing the offset relative to the context structure
- where each register is saved. */
- const int *context_offsets;
-
- /* The number of elements in the context_offsets table above. */
- int context_offsets_size;
-};
-
-/* supply register REGNUM, which has been saved on REGISTER_ADDR, to the
- regcache. */
-
-static void
-supply_register_at_address (struct regcache *regcache, int regnum,
- CORE_ADDR register_addr)
-{
- struct gdbarch *gdbarch = regcache->arch ();
- int buf_size = register_size (gdbarch, regnum);
- gdb_byte *buf;
-
- buf = (gdb_byte *) alloca (buf_size);
- read_memory (register_addr, buf, buf_size);
- regcache->raw_supply (regnum, buf);
-}
-
-/* Return true if, for a non-running thread, REGNUM has been saved on the
- Thread_Descriptor. */
-
-static int
-register_in_thread_descriptor_p (const struct ravenscar_reg_info *reg_info,
- int regnum)
-{
- return (regnum < reg_info->context_offsets_size
- && reg_info->context_offsets[regnum] != NO_OFFSET);
-}
-
-/* to_fetch_registers when inferior_ptid is different from the running
- thread. */
-
-static void
-ppc_ravenscar_generic_fetch_registers
- (const struct ravenscar_reg_info *reg_info,
- struct regcache *regcache, int regnum)
-{
- struct gdbarch *gdbarch = regcache->arch ();
- const int num_regs = gdbarch_num_regs (gdbarch);
- int current_regnum;
- CORE_ADDR current_address;
- CORE_ADDR thread_descriptor_address;
-
- /* The tid is the thread_id field, which is a pointer to the thread. */
- thread_descriptor_address = (CORE_ADDR) ptid_get_tid (inferior_ptid);
-
- /* Read registers. */
- for (current_regnum = 0; current_regnum < num_regs; current_regnum++)
- {
- if (register_in_thread_descriptor_p (reg_info, current_regnum))
- {
- current_address = thread_descriptor_address
- + reg_info->context_offsets[current_regnum];
- supply_register_at_address (regcache, current_regnum,
- current_address);
- }
- }
-}
-
-/* to_prepare_to_store when inferior_ptid is different from the running
- thread. */
-
-static void
-ppc_ravenscar_generic_prepare_to_store (struct regcache *regcache)
-{
- /* Nothing to do. */
-}
-
-/* to_store_registers when inferior_ptid is different from the running
- thread. */
-
-static void
-ppc_ravenscar_generic_store_registers
- (const struct ravenscar_reg_info *reg_info,
- struct regcache *regcache, int regnum)
-{
- struct gdbarch *gdbarch = regcache->arch ();
- int buf_size = register_size (gdbarch, regnum);
- gdb_byte buf[buf_size];
- ULONGEST register_address;
-
- if (register_in_thread_descriptor_p (reg_info, regnum))
- register_address
- = ptid_get_tid (inferior_ptid) + reg_info->context_offsets [regnum];
- else
- return;
-
- regcache->raw_collect (regnum, buf);
- write_memory (register_address,
- buf,
- buf_size);
-}
-
-/* The ravenscar_reg_info for most PowerPC targets. */
-
-static const struct ravenscar_reg_info ppc_reg_info =
-{
- powerpc_context_offsets,
- ARRAY_SIZE (powerpc_context_offsets),
-};
-
-/* Implement the to_fetch_registers ravenscar_arch_ops method
- for most PowerPC targets. */
-
-static void
-ppc_ravenscar_powerpc_fetch_registers (struct regcache *regcache, int regnum)
-{
- ppc_ravenscar_generic_fetch_registers (&ppc_reg_info, regcache, regnum);
-}
-
-/* Implement the to_store_registers ravenscar_arch_ops method
- for most PowerPC targets. */
-
-static void
-ppc_ravenscar_powerpc_store_registers (struct regcache *regcache, int regnum)
-{
- ppc_ravenscar_generic_store_registers (&ppc_reg_info, regcache, regnum);
-}
-
/* The ravenscar_arch_ops vector for most PowerPC targets. */
-static struct ravenscar_arch_ops ppc_ravenscar_powerpc_ops =
-{
- ppc_ravenscar_powerpc_fetch_registers,
- ppc_ravenscar_powerpc_store_registers,
- ppc_ravenscar_generic_prepare_to_store
-};
+static struct ravenscar_arch_ops ppc_ravenscar_powerpc_ops
+ (powerpc_context_offsets);
/* Register ppc_ravenscar_powerpc_ops in GDBARCH. */
set_gdbarch_ravenscar_ops (gdbarch, &ppc_ravenscar_powerpc_ops);
}
-/* The ravenscar_reg_info for E500 targets. */
-
-static const struct ravenscar_reg_info e500_reg_info =
-{
- e500_context_offsets,
- ARRAY_SIZE (e500_context_offsets),
-};
-
-/* Implement the to_fetch_registers ravenscar_arch_ops method
- for E500 targets. */
-
-static void
-ppc_ravenscar_e500_fetch_registers (struct regcache *regcache, int regnum)
-{
- ppc_ravenscar_generic_fetch_registers (&e500_reg_info, regcache, regnum);
-}
-
-/* Implement the to_store_registers ravenscar_arch_ops method
- for E500 targets. */
-
-static void
-ppc_ravenscar_e500_store_registers (struct regcache *regcache, int regnum)
-{
- ppc_ravenscar_generic_store_registers (&e500_reg_info, regcache, regnum);
-}
-
/* The ravenscar_arch_ops vector for E500 targets. */
-static struct ravenscar_arch_ops ppc_ravenscar_e500_ops =
-{
- ppc_ravenscar_e500_fetch_registers,
- ppc_ravenscar_e500_store_registers,
- ppc_ravenscar_generic_prepare_to_store
-};
+static struct ravenscar_arch_ops ppc_ravenscar_e500_ops (e500_context_offsets);
/* Register ppc_ravenscar_e500_ops in GDBARCH. */