/* Target-dependent code for the VAX.
- Copyright (C) 1986-2014 Free Software Foundation, Inc.
+ Copyright (C) 1986-2023 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 <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",
"ps",
};
- if (regnum >= 0 && regnum < ARRAY_SIZE (register_names))
- return register_names[regnum];
-
- return NULL;
+ gdb_static_assert (VAX_NUM_REGS == ARRAY_SIZE (register_names));
+ return register_names[regnum];
}
/* Return the GDB type object for the "standard" data type of data in
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_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 = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte buf[4];
int count = 0;
/* Push arguments in reverse order. */
for (i = nargs - 1; i >= 0; i--)
{
- int len = TYPE_LENGTH (value_enclosing_type (args[i]));
+ int len = args[i]->enclosing_type ()->length ();
sp -= (len + 3) & ~3;
count += (len + 3) / 4;
- write_memory (sp, value_contents_all (args[i]), len);
+ write_memory (sp, args[i]->contents_all ().data (), len);
}
/* Push argument count. */
/* Update the argument pointer. */
store_unsigned_integer (buf, 4, byte_order, sp);
- regcache_cooked_write (regcache, VAX_AP_REGNUM, buf);
+ 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);
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. */
/* Update the stack pointer and frame pointer. */
store_unsigned_integer (buf, 4, byte_order, sp);
- regcache_cooked_write (regcache, VAX_SP_REGNUM, buf);
- regcache_cooked_write (regcache, VAX_FP_REGNUM, buf);
+ 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_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
+vax_dummy_id (struct gdbarch *gdbarch, frame_info_ptr this_frame)
{
CORE_ADDR fp;
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
- int len = TYPE_LENGTH (type);
+ int len = type->length ();
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
- find the return value. */
+ Consequently a function must return the address where we can
+ find the return value. */
if (readbuf)
{
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. */
CORE_ADDR base;
/* Table of saved registers. */
- struct trad_frame_saved_reg *saved_regs;
+ trad_frame_saved_reg *saved_regs;
};
static struct vax_frame_cache *
-vax_frame_cache (struct frame_info *this_frame, void **this_cache)
+vax_frame_cache (frame_info_ptr 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);
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;
- cache->saved_regs[VAX_FP_REGNUM].addr = cache->base + 12;
- cache->saved_regs[VAX_AP_REGNUM].addr = cache->base + 8;
- cache->saved_regs[VAX_PS_REGNUM].addr = cache->base + 4;
+ cache->saved_regs[VAX_PC_REGNUM].set_addr (cache->base + 16);
+ cache->saved_regs[VAX_FP_REGNUM].set_addr (cache->base + 12);
+ cache->saved_regs[VAX_AP_REGNUM].set_addr (cache->base + 8);
+ cache->saved_regs[VAX_PS_REGNUM].set_addr (cache->base + 4);
/* Scan the register save mask and record the location of the saved
registers. */
{
if (mask & (1 << regnum))
{
- cache->saved_regs[regnum].addr = addr;
+ cache->saved_regs[regnum].set_addr (addr);
addr += 4;
}
}
ULONGEST numarg;
/* This is a procedure with Stack Argument List. Adjust the
- stack address for the arguments that were pushed onto the
- stack. The return instruction will automatically pop the
- arguments from the stack. */
+ 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 (this_frame, addr, 1);
addr += 4 + numarg * 4;
}
/* Bits 1:0 of the stack pointer were saved in the control bits. */
- trad_frame_set_value (cache->saved_regs, VAX_SP_REGNUM, addr + (mask >> 14));
+ cache->saved_regs[VAX_SP_REGNUM].set_value (addr + (mask >> 14));
return cache;
}
static void
-vax_frame_this_id (struct frame_info *this_frame, void **this_cache,
+vax_frame_this_id (frame_info_ptr this_frame, void **this_cache,
struct frame_id *this_id)
{
struct vax_frame_cache *cache = vax_frame_cache (this_frame, this_cache);
}
static struct value *
-vax_frame_prev_register (struct frame_info *this_frame,
+vax_frame_prev_register (frame_info_ptr this_frame,
void **this_cache, int regnum)
{
struct vax_frame_cache *cache = vax_frame_cache (this_frame, this_cache);
static const struct frame_unwind vax_frame_unwind =
{
+ "vax prologue",
NORMAL_FRAME,
default_frame_unwind_stop_reason,
vax_frame_this_id,
\f
static CORE_ADDR
-vax_frame_base_address (struct frame_info *this_frame, void **this_cache)
+vax_frame_base_address (frame_info_ptr this_frame, void **this_cache)
{
struct vax_frame_cache *cache = vax_frame_cache (this_frame, this_cache);
}
static CORE_ADDR
-vax_frame_args_address (struct frame_info *this_frame, void **this_cache)
+vax_frame_args_address (frame_info_ptr this_frame, void **this_cache)
{
return get_frame_register_unsigned (this_frame, VAX_AP_REGNUM);
}
/* Return number of arguments for FRAME. */
static int
-vax_frame_num_args (struct frame_info *frame)
+vax_frame_num_args (frame_info_ptr frame)
{
CORE_ADDR args;
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);
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. */
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 / binutils-gdb.git / blobdiff