/* Target-dependent code for the VAX.
- Copyright (C) 1986, 1989, 1991, 1992, 1995, 1996, 1998, 1999, 2000, 2002,
- 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "arch-utils.h"
#include "dis-asm.h"
-#include "floatformat.h"
#include "frame.h"
#include "frame-base.h"
#include "frame-unwind.h"
#include "trad-frame.h"
#include "value.h"
-#include "gdb_string.h"
-
#include "vax-tdep.h"
/* Return the name of register REGNUM. */
static const char *
vax_register_name (struct gdbarch *gdbarch, int regnum)
{
- static char *register_names[] =
+ static const char *register_names[] =
{
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "ap", "fp", "sp", "pc",
}
/* Return the GDB type object for the "standard" data type of data in
- register REGNUM. */
+ register REGNUM. */
static struct type *
vax_register_type (struct gdbarch *gdbarch, int regnum)
{
- return builtin_type_int;
+ return builtin_type (gdbarch)->builtin_int;
}
\f
/* Core file support. */
vax_supply_gregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
- const gdb_byte *regs = gregs;
+ const gdb_byte *regs = (const gdb_byte *) gregs;
int i;
for (i = 0; i < VAX_NUM_REGS; i++)
{
if (regnum == i || regnum == -1)
- regcache_raw_supply (regcache, i, regs + i * 4);
+ regcache->raw_supply (i, regs + i * 4);
}
}
/* VAX register set. */
-static struct regset vax_gregset =
+static const struct regset vax_gregset =
{
NULL,
vax_supply_gregset
};
-/* Return the appropriate register set for the core section identified
- by SECT_NAME and SECT_SIZE. */
+/* Iterate over core file register note sections. */
-static const struct regset *
-vax_regset_from_core_section (struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size)
+static void
+vax_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- if (strcmp (sect_name, ".reg") == 0 && sect_size >= VAX_NUM_REGS * 4)
- return &vax_gregset;
-
- return NULL;
+ cb (".reg", VAX_NUM_REGS * 4, VAX_NUM_REGS * 4, &vax_gregset, NULL, cb_data);
}
\f
/* The VAX UNIX calling convention uses R1 to pass a structure return
vax_store_arguments (struct regcache *regcache, int nargs,
struct value **args, CORE_ADDR sp)
{
+ struct gdbarch *gdbarch = regcache->arch ();
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte buf[4];
int count = 0;
int i;
/* Push argument count. */
sp -= 4;
- store_unsigned_integer (buf, 4, count);
+ store_unsigned_integer (buf, 4, byte_order, count);
write_memory (sp, buf, 4);
/* Update the argument pointer. */
- store_unsigned_integer (buf, 4, sp);
- regcache_cooked_write (regcache, VAX_AP_REGNUM, buf);
+ store_unsigned_integer (buf, 4, byte_order, sp);
+ regcache->cooked_write (VAX_AP_REGNUM, buf);
return sp;
}
static CORE_ADDR
vax_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
- struct value **args, CORE_ADDR sp, int struct_return,
+ struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method,
CORE_ADDR struct_addr)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR fp = sp;
gdb_byte buf[4];
sp = vax_store_arguments (regcache, nargs, args, sp);
/* Store return value address. */
- if (struct_return)
+ if (return_method == return_method_struct)
regcache_cooked_write_unsigned (regcache, VAX_R1_REGNUM, struct_addr);
/* Store return address in the PC slot. */
sp -= 4;
- store_unsigned_integer (buf, 4, bp_addr);
+ store_unsigned_integer (buf, 4, byte_order, bp_addr);
write_memory (sp, buf, 4);
/* Store the (fake) frame pointer in the FP slot. */
sp -= 4;
- store_unsigned_integer (buf, 4, fp);
+ store_unsigned_integer (buf, 4, byte_order, fp);
write_memory (sp, buf, 4);
/* Skip the AP slot. */
/* Store register save mask and control bits. */
sp -= 4;
- store_unsigned_integer (buf, 4, 0);
+ store_unsigned_integer (buf, 4, byte_order, 0);
write_memory (sp, buf, 4);
/* Store condition handler. */
sp -= 4;
- store_unsigned_integer (buf, 4, 0);
+ store_unsigned_integer (buf, 4, byte_order, 0);
write_memory (sp, buf, 4);
/* Update the stack pointer and frame pointer. */
- store_unsigned_integer (buf, 4, sp);
- regcache_cooked_write (regcache, VAX_SP_REGNUM, buf);
- regcache_cooked_write (regcache, VAX_FP_REGNUM, buf);
+ store_unsigned_integer (buf, 4, byte_order, sp);
+ regcache->cooked_write (VAX_SP_REGNUM, buf);
+ regcache->cooked_write (VAX_FP_REGNUM, buf);
/* Return the saved (fake) frame pointer. */
return fp;
}
static struct frame_id
-vax_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
+vax_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
CORE_ADDR fp;
- fp = frame_unwind_register_unsigned (next_frame, VAX_FP_REGNUM);
- return frame_id_build (fp, frame_pc_unwind (next_frame));
+ fp = get_frame_register_unsigned (this_frame, VAX_FP_REGNUM);
+ return frame_id_build (fp, get_frame_pc (this_frame));
}
\f
static enum return_value_convention
-vax_return_value (struct gdbarch *gdbarch, struct type *type,
- struct regcache *regcache, gdb_byte *readbuf,
- const gdb_byte *writebuf)
+vax_return_value (struct gdbarch *gdbarch, struct value *function,
+ struct type *type, struct regcache *regcache,
+ gdb_byte *readbuf, const gdb_byte *writebuf)
{
int len = TYPE_LENGTH (type);
gdb_byte buf[8];
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
- || TYPE_CODE (type) == TYPE_CODE_ARRAY)
+ if (type->code () == TYPE_CODE_STRUCT
+ || type->code () == TYPE_CODE_UNION
+ || type->code () == TYPE_CODE_ARRAY)
{
/* The default on VAX is to return structures in static memory.
Consequently a function must return the address where we can
if (readbuf)
{
/* Read the contents of R0 and (if necessary) R1. */
- regcache_cooked_read (regcache, VAX_R0_REGNUM, buf);
+ regcache->cooked_read (VAX_R0_REGNUM, buf);
if (len > 4)
- regcache_cooked_read (regcache, VAX_R1_REGNUM, buf + 4);
+ regcache->cooked_read (VAX_R1_REGNUM, buf + 4);
memcpy (readbuf, buf, len);
}
if (writebuf)
{
/* Read the contents to R0 and (if necessary) R1. */
memcpy (buf, writebuf, len);
- regcache_cooked_write (regcache, VAX_R0_REGNUM, buf);
+ regcache->cooked_write (VAX_R0_REGNUM, buf);
if (len > 4)
- regcache_cooked_write (regcache, VAX_R1_REGNUM, buf + 4);
+ regcache->cooked_write (VAX_R1_REGNUM, buf + 4);
}
return RETURN_VALUE_REGISTER_CONVENTION;
encode a breakpoint instruction, store the length of the string in
*LEN and optionally adjust *PC to point to the correct memory
location for inserting the breakpoint. */
-
-static const gdb_byte *
-vax_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pc, int *len)
-{
- static gdb_byte break_insn[] = { 3 };
- *len = sizeof (break_insn);
- return break_insn;
-}
+constexpr gdb_byte vax_break_insn[] = { 3 };
+
+typedef BP_MANIPULATION (vax_break_insn) vax_breakpoint;
\f
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
static CORE_ADDR
-vax_skip_prologue (CORE_ADDR pc)
+vax_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
- gdb_byte op = read_memory_unsigned_integer (pc, 1);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ gdb_byte op = read_memory_unsigned_integer (pc, 1, byte_order);
if (op == 0x11)
pc += 2; /* skip brb */
if (op == 0x31)
pc += 3; /* skip brw */
if (op == 0xC2
- && (read_memory_unsigned_integer (pc + 2, 1)) == 0x5E)
+ && read_memory_unsigned_integer (pc + 2, 1, byte_order) == 0x5E)
pc += 3; /* skip subl2 */
if (op == 0x9E
- && (read_memory_unsigned_integer (pc + 1, 1)) == 0xAE
- && (read_memory_unsigned_integer (pc + 3, 1)) == 0x5E)
+ && read_memory_unsigned_integer (pc + 1, 1, byte_order) == 0xAE
+ && read_memory_unsigned_integer (pc + 3, 1, byte_order) == 0x5E)
pc += 4; /* skip movab */
if (op == 0x9E
- && (read_memory_unsigned_integer (pc + 1, 1)) == 0xCE
- && (read_memory_unsigned_integer (pc + 4, 1)) == 0x5E)
+ && read_memory_unsigned_integer (pc + 1, 1, byte_order) == 0xCE
+ && read_memory_unsigned_integer (pc + 4, 1, byte_order) == 0x5E)
pc += 5; /* skip movab */
if (op == 0x9E
- && (read_memory_unsigned_integer (pc + 1, 1)) == 0xEE
- && (read_memory_unsigned_integer (pc + 6, 1)) == 0x5E)
+ && read_memory_unsigned_integer (pc + 1, 1, byte_order) == 0xEE
+ && read_memory_unsigned_integer (pc + 6, 1, byte_order) == 0x5E)
pc += 7; /* skip movab */
return pc;
struct trad_frame_saved_reg *saved_regs;
};
-struct vax_frame_cache *
-vax_frame_cache (struct frame_info *next_frame, void **this_cache)
+static struct vax_frame_cache *
+vax_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct vax_frame_cache *cache;
CORE_ADDR addr;
int regnum;
if (*this_cache)
- return *this_cache;
+ return (struct vax_frame_cache *) *this_cache;
/* Allocate a new cache. */
cache = FRAME_OBSTACK_ZALLOC (struct vax_frame_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
/* The frame pointer is used as the base for the frame. */
- cache->base = frame_unwind_register_unsigned (next_frame, VAX_FP_REGNUM);
+ cache->base = get_frame_register_unsigned (this_frame, VAX_FP_REGNUM);
if (cache->base == 0)
return cache;
/* The register save mask and control bits determine the layout of
the stack frame. */
- mask = get_frame_memory_unsigned (next_frame, cache->base + 4, 4) >> 16;
+ mask = get_frame_memory_unsigned (this_frame, cache->base + 4, 4) >> 16;
/* These are always saved. */
cache->saved_regs[VAX_PC_REGNUM].addr = cache->base + 16;
stack address for the arguments that were pushed onto the
stack. The return instruction will automatically pop the
arguments from the stack. */
- numarg = get_frame_memory_unsigned (next_frame, addr, 1);
+ numarg = get_frame_memory_unsigned (this_frame, addr, 1);
addr += 4 + numarg * 4;
}
}
static void
-vax_frame_this_id (struct frame_info *next_frame, void **this_cache,
+vax_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
- struct vax_frame_cache *cache = vax_frame_cache (next_frame, this_cache);
+ struct vax_frame_cache *cache = vax_frame_cache (this_frame, this_cache);
/* This marks the outermost frame. */
if (cache->base == 0)
return;
- (*this_id) = frame_id_build (cache->base,
- frame_func_unwind (next_frame, NORMAL_FRAME));
+ (*this_id) = frame_id_build (cache->base, get_frame_func (this_frame));
}
-static void
-vax_frame_prev_register (struct frame_info *next_frame, void **this_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, gdb_byte *valuep)
+static struct value *
+vax_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
{
- struct vax_frame_cache *cache = vax_frame_cache (next_frame, this_cache);
+ struct vax_frame_cache *cache = vax_frame_cache (this_frame, this_cache);
- trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
}
static const struct frame_unwind vax_frame_unwind =
{
NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
vax_frame_this_id,
- vax_frame_prev_register
+ vax_frame_prev_register,
+ NULL,
+ default_frame_sniffer
};
-
-static const struct frame_unwind *
-vax_frame_sniffer (struct frame_info *next_frame)
-{
- return &vax_frame_unwind;
-}
\f
static CORE_ADDR
-vax_frame_base_address (struct frame_info *next_frame, void **this_cache)
+vax_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
- struct vax_frame_cache *cache = vax_frame_cache (next_frame, this_cache);
+ struct vax_frame_cache *cache = vax_frame_cache (this_frame, this_cache);
return cache->base;
}
static CORE_ADDR
-vax_frame_args_address (struct frame_info *next_frame, void **this_cache)
+vax_frame_args_address (struct frame_info *this_frame, void **this_cache)
{
- return frame_unwind_register_unsigned (next_frame, VAX_AP_REGNUM);
+ return get_frame_register_unsigned (this_frame, VAX_AP_REGNUM);
}
static const struct frame_base vax_frame_base =
return get_frame_memory_unsigned (frame, args, 1);
}
-static CORE_ADDR
-vax_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- return frame_unwind_register_unsigned (next_frame, VAX_PC_REGNUM);
-}
\f
/* Initialize the current architecture based on INFO. If possible, re-use an
set_gdbarch_pc_regnum (gdbarch, VAX_PC_REGNUM);
set_gdbarch_ps_regnum (gdbarch, VAX_PS_REGNUM);
- set_gdbarch_regset_from_core_section
- (gdbarch, vax_regset_from_core_section);
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, vax_iterate_over_regset_sections);
/* Frame and stack info */
set_gdbarch_skip_prologue (gdbarch, vax_skip_prologue);
/* Call dummy code. */
set_gdbarch_push_dummy_call (gdbarch, vax_push_dummy_call);
- set_gdbarch_unwind_dummy_id (gdbarch, vax_unwind_dummy_id);
+ set_gdbarch_dummy_id (gdbarch, vax_dummy_id);
/* Breakpoint info */
- set_gdbarch_breakpoint_from_pc (gdbarch, vax_breakpoint_from_pc);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch, vax_breakpoint::kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch, vax_breakpoint::bp_from_kind);
/* Misc info */
set_gdbarch_deprecated_function_start_offset (gdbarch, 2);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
- set_gdbarch_print_insn (gdbarch, print_insn_vax);
-
- set_gdbarch_unwind_pc (gdbarch, vax_unwind_pc);
-
frame_base_set_default (gdbarch, &vax_frame_base);
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
- frame_unwind_append_sniffer (gdbarch, vax_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &vax_frame_unwind);
return (gdbarch);
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_vax_tdep (void);
-
+void _initialize_vax_tdep ();
void
-_initialize_vax_tdep (void)
+_initialize_vax_tdep ()
{
gdbarch_register (bfd_arch_vax, vax_gdbarch_init, NULL);
}
projects / deliverable / binutils-gdb.git / blobdiff