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Differential D38759 Diff 119034 devel/gdb/files/kgdb/riscv-fbsd-kern.c

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devel/gdb/files/kgdb/riscv-fbsd-kern.c

Show First 20 Lines • Show All 90 Lines • ▼ Show 20 Linesstatic const struct regcache_map_entry riscv_fbsd_tfmap[] =
{ 1, RISCV_PC_REGNUM, 0 }, { 1, RISCV_PC_REGNUM, 0 },
{ 1, RISCV_CSR_SSTATUS_REGNUM, 0 }, { 1, RISCV_CSR_SSTATUS_REGNUM, 0 },
{ 1, RISCV_CSR_STVAL_REGNUM, 0 }, { 1, RISCV_CSR_STVAL_REGNUM, 0 },
{ 1, RISCV_CSR_SCAUSE_REGNUM, 0 }, { 1, RISCV_CSR_SCAUSE_REGNUM, 0 },
{ 0 } { 0 }
}; };
static struct trad_frame_cache * static struct trad_frame_cache *
riscv_fbsd_trapframe_cache (struct frame_info *this_frame, void **this_cache) riscv_fbsd_trapframe_cache (frame_info_ptr this_frame, void **this_cache)
{ {
struct gdbarch *gdbarch = get_frame_arch (this_frame); struct gdbarch *gdbarch = get_frame_arch (this_frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct trad_frame_cache *cache; struct trad_frame_cache *cache;
CORE_ADDR func, pc, sp; CORE_ADDR func, pc, sp;
const char *name; const char *name;
int xlen; int xlen;
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/* Construct the frame ID using the function start. */ /* Construct the frame ID using the function start. */
trad_frame_set_id (cache, frame_id_build (sp + 35 * xlen, func)); trad_frame_set_id (cache, frame_id_build (sp + 35 * xlen, func));
} }
return cache; return cache;
} }
static void static void
riscv_fbsd_trapframe_this_id (struct frame_info *this_frame, riscv_fbsd_trapframe_this_id (frame_info_ptr this_frame,
void **this_cache, struct frame_id *this_id) void **this_cache, struct frame_id *this_id)
{ {
struct trad_frame_cache *cache = struct trad_frame_cache *cache =
riscv_fbsd_trapframe_cache (this_frame, this_cache); riscv_fbsd_trapframe_cache (this_frame, this_cache);
trad_frame_get_id (cache, this_id); trad_frame_get_id (cache, this_id);
} }
static struct value * static struct value *
riscv_fbsd_trapframe_prev_register (struct frame_info *this_frame, riscv_fbsd_trapframe_prev_register (frame_info_ptr this_frame,
void **this_cache, int regnum) void **this_cache, int regnum)
{ {
struct trad_frame_cache *cache = struct trad_frame_cache *cache =
riscv_fbsd_trapframe_cache (this_frame, this_cache); riscv_fbsd_trapframe_cache (this_frame, this_cache);
return trad_frame_get_register (cache, this_frame, regnum); return trad_frame_get_register (cache, this_frame, regnum);
} }
static int static int
riscv_fbsd_trapframe_sniffer (const struct frame_unwind *self, riscv_fbsd_trapframe_sniffer (const struct frame_unwind *self,
struct frame_info *this_frame, frame_info_ptr this_frame,
void **this_prologue_cache) void **this_prologue_cache)
{ {
const char *name; const char *name;
find_pc_partial_function (get_frame_func (this_frame), &name, NULL, NULL); find_pc_partial_function (get_frame_func (this_frame), &name, NULL, NULL);
return (name != NULL return (name != NULL
&& ((strcmp (name, "cpu_exception_handler_user") == 0) || && ((strcmp (name, "cpu_exception_handler_user") == 0) ||
(strcmp (name, "cpu_exception_handler_supervisor") == 0))); (strcmp (name, "cpu_exception_handler_supervisor") == 0)));
} }
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/* Implement the 'init_osabi' method of struct gdb_osabi_handler. */ /* Implement the 'init_osabi' method of struct gdb_osabi_handler. */
static void static void
riscv_fbsd_kernel_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) riscv_fbsd_kernel_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{ {
frame_unwind_prepend_unwinder (gdbarch, &riscv_fbsd_trapframe_unwind); frame_unwind_prepend_unwinder (gdbarch, &riscv_fbsd_trapframe_unwind);
set_solib_ops (gdbarch, &kld_so_ops); set_gdbarch_so_ops (gdbarch, &kld_so_ops);
set_gdbarch_software_single_step (gdbarch, riscv_software_single_step); set_gdbarch_software_single_step (gdbarch, riscv_software_single_step);
fbsd_vmcore_set_supply_pcb (gdbarch, riscv_fbsd_supply_pcb); fbsd_vmcore_set_supply_pcb (gdbarch, riscv_fbsd_supply_pcb);
fbsd_vmcore_set_cpu_pcb_addr (gdbarch, kgdb_trgt_stop_pcb); fbsd_vmcore_set_cpu_pcb_addr (gdbarch, kgdb_trgt_stop_pcb);
} }
void _initialize_riscv_kgdb_tdep (); void _initialize_riscv_kgdb_tdep ();
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