/* Common target dependent code for GDB on ARM systems.
Copyright 1988, 1989, 1991, 1992, 1993, 1995, 1996, 1998, 1999, 2000,
- 2001, 2002 Free Software Foundation, Inc.
+ 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbcore.h"
#include "symfile.h"
#include "gdb_string.h"
-#include "dis-asm.h" /* For register flavors. */
+#include "dis-asm.h" /* For register styles. */
#include "regcache.h"
#include "doublest.h"
#include "value.h"
#include "arch-utils.h"
#include "solib-svr4.h"
+#include "osabi.h"
#include "arm-tdep.h"
#include "gdb/sim-arm.h"
#include "gdb_assert.h"
+static int arm_debug;
+
/* Each OS has a different mechanism for accessing the various
registers stored in the sigcontext structure.
#define MSYMBOL_SIZE(msym) \
((long) MSYMBOL_INFO (msym) & 0x7fffffff)
+/* The list of available "set arm ..." and "show arm ..." commands. */
+static struct cmd_list_element *setarmcmdlist = NULL;
+static struct cmd_list_element *showarmcmdlist = NULL;
+
+/* The type of floating-point to use. Keep this in sync with enum
+ arm_float_model, and the help string in _initialize_arm_tdep. */
+static const char *fp_model_strings[] =
+{
+ "auto",
+ "softfpa",
+ "fpa",
+ "softvfp",
+ "vfp"
+};
+
+/* A variable that can be configured by the user. */
+static enum arm_float_model arm_fp_model = ARM_FLOAT_AUTO;
+static const char *current_fp_model = "auto";
+
/* Number of different reg name sets (options). */
-static int num_flavor_options;
+static int num_disassembly_options;
/* We have more registers than the disassembler as gdb can print the value
of special registers as well.
"fps", "cpsr" }; /* 24 25 */
static char **arm_register_names = arm_register_name_strings;
-/* Valid register name flavors. */
-static const char **valid_flavors;
+/* Valid register name styles. */
+static const char **valid_disassembly_styles;
-/* Disassembly flavor to use. Default to "std" register names. */
-static const char *disassembly_flavor;
+/* Disassembly style to use. Default to "std" register names. */
+static const char *disassembly_style;
/* Index to that option in the opcodes table. */
static int current_option;
/* This is used to keep the bfd arch_info in sync with the disassembly
- flavor. */
-static void set_disassembly_flavor_sfunc(char *, int,
+ style. */
+static void set_disassembly_style_sfunc(char *, int,
struct cmd_list_element *);
-static void set_disassembly_flavor (void);
+static void set_disassembly_style (void);
-static void convert_from_extended (void *ptr, void *dbl);
+static void convert_from_extended (const struct floatformat *, const void *,
+ void *);
+static void convert_to_extended (const struct floatformat *, void *,
+ const void *);
/* Define other aspects of the stack frame. We keep the offsets of
all saved registers, 'cause we need 'em a lot! We also keep the
static int
arm_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
{
- return (chain != 0 && (FRAME_SAVED_PC (thisframe) >= LOWEST_PC));
+ return (DEPRECATED_FRAME_SAVED_PC (thisframe) >= LOWEST_PC);
}
/* Set to true if the 32-bit mode is in use. */
frame location (true if we have not pushed large data structures or
gone too many levels deep) and that our 1024 is not enough to consider
code regions as part of the stack (true for most practical purposes). */
- if (PC_IN_CALL_DUMMY (memaddr, sp, sp + 1024))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (memaddr, sp, sp + 1024))
return caller_is_thumb;
else
return 0;
static CORE_ADDR
arm_addr_bits_remove (CORE_ADDR val)
{
- if (arm_pc_is_thumb (val))
- return (val & (arm_apcs_32 ? 0xfffffffe : 0x03fffffe));
+ if (arm_apcs_32)
+ return (val & (arm_pc_is_thumb (val) ? 0xfffffffe : 0xfffffffc));
else
- return (val & (arm_apcs_32 ? 0xfffffffc : 0x03fffffc));
+ return (val & 0x03fffffc);
}
/* When reading symbols, we need to zap the low bit of the address,
stmdb sp!, {}
sub sp, ip, #4. */
- func_start = (get_pc_function_start ((fi)->pc) + FUNCTION_START_OFFSET);
+ func_start = (get_frame_func (fi) + FUNCTION_START_OFFSET);
after_prologue = SKIP_PROLOGUE (func_start);
/* There are some frameless functions whose first two instructions
static CORE_ADDR
arm_frame_args_address (struct frame_info *fi)
{
- return fi->frame;
+ return get_frame_base (fi);
}
/* The address of the local variables in the frame. */
static CORE_ADDR
arm_frame_locals_address (struct frame_info *fi)
{
- return fi->frame;
+ return get_frame_base (fi);
}
/* The number of arguments being passed in the frame. */
struct symtab_and_line sal;
/* If we're in a dummy frame, don't even try to skip the prologue. */
- if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (pc, 0, 0))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (pc, 0, 0))
return pc;
/* See what the symbol table says. */
struct symbol *sym;
/* Found a function. */
- sym = lookup_symbol (func_name, NULL, VAR_NAMESPACE, NULL, NULL);
+ sym = lookup_symbol (func_name, NULL, VAR_DOMAIN, NULL, NULL);
if (sym && SYMBOL_LANGUAGE (sym) != language_asm)
{
/* Don't use this trick for assembly source files. */
int i;
/* Don't try to scan dummy frames. */
- if (USE_GENERIC_DUMMY_FRAMES
- && fi != NULL
- && PC_IN_CALL_DUMMY (fi->pc, 0, 0))
+ if (fi != NULL
+ && DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), 0, 0))
return;
- if (find_pc_partial_function (fi->pc, NULL, &prologue_start, &prologue_end))
+ if (find_pc_partial_function (get_frame_pc (fi), NULL, &prologue_start, &prologue_end))
{
struct symtab_and_line sal = find_pc_line (prologue_start, 0);
if (sal.line == 0) /* no line info, use current PC */
- prologue_end = fi->pc;
+ prologue_end = get_frame_pc (fi);
else if (sal.end < prologue_end) /* next line begins after fn end */
prologue_end = sal.end; /* (probably means no prologue) */
}
16 pushes, an add, and "mv fp,sp". */
prologue_end = prologue_start + 40;
- prologue_end = min (prologue_end, fi->pc);
+ prologue_end = min (prologue_end, get_frame_pc (fi));
/* Initialize the saved register map. When register H is copied to
register L, we will put H in saved_reg[L]. */
frame pointer, adjust the stack pointer, and save registers.
Do this until all basic prolog instructions are found. */
- fi->extra_info->framesize = 0;
+ get_frame_extra_info (fi)->framesize = 0;
for (current_pc = prologue_start;
(current_pc < prologue_end) && ((findmask & 7) != 7);
current_pc += 2)
for (regno = ARM_LR_REGNUM; regno >= 0; regno--)
if (mask & (1 << regno))
{
- fi->extra_info->framesize += 4;
- fi->saved_regs[saved_reg[regno]] =
- -(fi->extra_info->framesize);
+ get_frame_extra_info (fi)->framesize += 4;
+ get_frame_saved_regs (fi)[saved_reg[regno]] =
+ -(get_frame_extra_info (fi)->framesize);
/* Reset saved register map. */
saved_reg[regno] = regno;
}
offset = (insn & 0x7f) << 2; /* get scaled offset */
if (insn & 0x80) /* is it signed? (==subtracting) */
{
- fi->extra_info->frameoffset += offset;
+ get_frame_extra_info (fi)->frameoffset += offset;
offset = -offset;
}
- fi->extra_info->framesize -= offset;
+ get_frame_extra_info (fi)->framesize -= offset;
}
else if ((insn & 0xff00) == 0xaf00) /* add r7, sp, #imm */
{
findmask |= 2; /* setting of r7 found */
- fi->extra_info->framereg = THUMB_FP_REGNUM;
+ get_frame_extra_info (fi)->framereg = THUMB_FP_REGNUM;
/* get scaled offset */
- fi->extra_info->frameoffset = (insn & 0xff) << 2;
+ get_frame_extra_info (fi)->frameoffset = (insn & 0xff) << 2;
}
else if (insn == 0x466f) /* mov r7, sp */
{
findmask |= 2; /* setting of r7 found */
- fi->extra_info->framereg = THUMB_FP_REGNUM;
- fi->extra_info->frameoffset = 0;
+ get_frame_extra_info (fi)->framereg = THUMB_FP_REGNUM;
+ get_frame_extra_info (fi)->frameoffset = 0;
saved_reg[THUMB_FP_REGNUM] = ARM_SP_REGNUM;
}
else if ((insn & 0xffc0) == 0x4640) /* mov r0-r7, r8-r15 */
}
}
-/* Check if prologue for this frame's PC has already been scanned. If
- it has, copy the relevant information about that prologue and
- return non-zero. Otherwise do not copy anything and return zero.
-
- The information saved in the cache includes:
- * the frame register number;
- * the size of the stack frame;
- * the offsets of saved regs (relative to the old SP); and
- * the offset from the stack pointer to the frame pointer
-
- The cache contains only one entry, since this is adequate for the
- typical sequence of prologue scan requests we get. When performing
- a backtrace, GDB will usually ask to scan the same function twice
- in a row (once to get the frame chain, and once to fill in the
- extra frame information). */
-
-static struct frame_info prologue_cache;
-
-static int
-check_prologue_cache (struct frame_info *fi)
-{
- int i;
-
- if (fi->pc == prologue_cache.pc)
- {
- fi->extra_info->framereg = prologue_cache.extra_info->framereg;
- fi->extra_info->framesize = prologue_cache.extra_info->framesize;
- fi->extra_info->frameoffset = prologue_cache.extra_info->frameoffset;
- for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
- fi->saved_regs[i] = prologue_cache.saved_regs[i];
- return 1;
- }
- else
- return 0;
-}
-
-
-/* Copy the prologue information from fi to the prologue cache. */
-
-static void
-save_prologue_cache (struct frame_info *fi)
-{
- int i;
-
- prologue_cache.pc = fi->pc;
- prologue_cache.extra_info->framereg = fi->extra_info->framereg;
- prologue_cache.extra_info->framesize = fi->extra_info->framesize;
- prologue_cache.extra_info->frameoffset = fi->extra_info->frameoffset;
-
- for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
- prologue_cache.saved_regs[i] = fi->saved_regs[i];
-}
-
-
/* This function decodes an ARM function prologue to determine:
1) the size of the stack frame
2) which registers are saved on it
LONGEST return_value;
CORE_ADDR prologue_start, prologue_end, current_pc;
- /* Check if this function is already in the cache of frame information. */
- if (check_prologue_cache (fi))
- return;
-
/* Assume there is no frame until proven otherwise. */
- fi->extra_info->framereg = ARM_SP_REGNUM;
- fi->extra_info->framesize = 0;
- fi->extra_info->frameoffset = 0;
+ get_frame_extra_info (fi)->framereg = ARM_SP_REGNUM;
+ get_frame_extra_info (fi)->framesize = 0;
+ get_frame_extra_info (fi)->frameoffset = 0;
/* Check for Thumb prologue. */
- if (arm_pc_is_thumb (fi->pc))
+ if (arm_pc_is_thumb (get_frame_pc (fi)))
{
thumb_scan_prologue (fi);
- save_prologue_cache (fi);
return;
}
/* Find the function prologue. If we can't find the function in
the symbol table, peek in the stack frame to find the PC. */
- if (find_pc_partial_function (fi->pc, NULL, &prologue_start, &prologue_end))
+ if (find_pc_partial_function (get_frame_pc (fi), NULL, &prologue_start, &prologue_end))
{
/* One way to find the end of the prologue (which works well
for unoptimized code) is to do the following:
struct symtab_and_line sal = find_pc_line (prologue_start, 0);
if (sal.line == 0)
- prologue_end = fi->pc;
+ prologue_end = get_frame_pc (fi);
else if (sal.end < prologue_end)
prologue_end = sal.end;
{
/* Get address of the stmfd in the prologue of the callee;
the saved PC is the address of the stmfd + 8. */
- if (!safe_read_memory_integer (fi->frame, 4, &return_value))
+ if (!safe_read_memory_integer (get_frame_base (fi), 4, &return_value))
return;
else
{
if (mask & (1 << regno))
{
sp_offset -= 4;
- fi->saved_regs[regno] = sp_offset;
+ get_frame_saved_regs (fi)[regno] = sp_offset;
}
}
else if ((insn & 0xffffc000) == 0xe54b0000 || /* strb rx,[r11,#-n] */
unsigned rot = (insn & 0xf00) >> 7; /* rotate amount */
imm = (imm >> rot) | (imm << (32 - rot));
fp_offset = -imm;
- fi->extra_info->framereg = ARM_FP_REGNUM;
+ get_frame_extra_info (fi)->framereg = ARM_FP_REGNUM;
}
else if ((insn & 0xfffff000) == 0xe24dd000) /* sub sp, sp #n */
{
{
sp_offset -= 12;
regno = ARM_F0_REGNUM + ((insn >> 12) & 0x07);
- fi->saved_regs[regno] = sp_offset;
+ get_frame_saved_regs (fi)[regno] = sp_offset;
}
else if ((insn & 0xffbf0fff) == 0xec2d0200) /* sfmfd f0, 4, [sp!] */
{
for (; fp_start_reg < fp_bound_reg; fp_start_reg++)
{
sp_offset -= 12;
- fi->saved_regs[fp_start_reg++] = sp_offset;
+ get_frame_saved_regs (fi)[fp_start_reg++] = sp_offset;
}
}
else if ((insn & 0xf0000000) != 0xe0000000)
/* The frame size is just the negative of the offset (from the
original SP) of the last thing thing we pushed on the stack.
The frame offset is [new FP] - [new SP]. */
- fi->extra_info->framesize = -sp_offset;
- if (fi->extra_info->framereg == ARM_FP_REGNUM)
- fi->extra_info->frameoffset = fp_offset - sp_offset;
+ get_frame_extra_info (fi)->framesize = -sp_offset;
+ if (get_frame_extra_info (fi)->framereg == ARM_FP_REGNUM)
+ get_frame_extra_info (fi)->frameoffset = fp_offset - sp_offset;
else
- fi->extra_info->frameoffset = 0;
-
- save_prologue_cache (fi);
+ get_frame_extra_info (fi)->frameoffset = 0;
}
/* Find REGNUM on the stack. Otherwise, it's in an active register.
/* NOTE: cagney/2002-05-03: This function really shouldn't be
needed. Instead the (still being written) register unwind
function could be called directly. */
- for (; fi; fi = fi->next)
+ for (; fi; fi = get_next_frame (fi))
{
- if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (fi->pc, 0, 0))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), 0, 0))
{
- return generic_read_register_dummy (fi->pc, fi->frame, regnum);
+ return deprecated_read_register_dummy (get_frame_pc (fi),
+ get_frame_base (fi), regnum);
}
- else if (fi->saved_regs[regnum] != 0)
+ else if (get_frame_saved_regs (fi)[regnum] != 0)
{
/* NOTE: cagney/2002-05-03: This would normally need to
handle ARM_SP_REGNUM as a special case as, according to
the frame.h comments, saved_regs[SP_REGNUM] contains the
SP value not its address. It appears that the ARM isn't
doing this though. */
- return read_memory_integer (fi->saved_regs[regnum],
+ return read_memory_integer (get_frame_saved_regs (fi)[regnum],
REGISTER_RAW_SIZE (regnum));
}
}
}
/* Function: frame_chain Given a GDB frame, determine the address of
the calling function's frame. This will be used to create a new
- GDB frame struct, and then INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC
- will be called for the new frame. For ARM, we save the frame size
- when we initialize the frame_info. */
+ GDB frame struct, and then DEPRECATED_INIT_EXTRA_FRAME_INFO and
+ DEPRECATED_INIT_FRAME_PC will be called for the new frame. For
+ ARM, we save the frame size when we initialize the frame_info. */
static CORE_ADDR
arm_frame_chain (struct frame_info *fi)
{
CORE_ADDR caller_pc;
- int framereg = fi->extra_info->framereg;
+ int framereg = get_frame_extra_info (fi)->framereg;
- if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (fi->pc, 0, 0))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), 0, 0))
/* A generic call dummy's frame is the same as caller's. */
- return fi->frame;
+ return get_frame_base (fi);
- if (fi->pc < LOWEST_PC)
+ if (get_frame_pc (fi) < LOWEST_PC)
return 0;
/* If the caller is the startup code, we're at the end of the chain. */
- caller_pc = FRAME_SAVED_PC (fi);
+ caller_pc = DEPRECATED_FRAME_SAVED_PC (fi);
/* If the caller is Thumb and the caller is ARM, or vice versa,
the frame register of the caller is different from ours.
frame register number. */
/* XXX Fixme, we should try to do this without creating a temporary
caller_fi. */
- if (arm_pc_is_thumb (caller_pc) != arm_pc_is_thumb (fi->pc))
+ if (arm_pc_is_thumb (caller_pc) != arm_pc_is_thumb (get_frame_pc (fi)))
{
- struct frame_info caller_fi;
- struct cleanup *old_chain;
-
- /* Create a temporary frame suitable for scanning the caller's
- prologue. (Ugh.) */
- memset (&caller_fi, 0, sizeof (caller_fi));
- caller_fi.extra_info = (struct frame_extra_info *)
- xcalloc (1, sizeof (struct frame_extra_info));
- old_chain = make_cleanup (xfree, caller_fi.extra_info);
- caller_fi.saved_regs = (CORE_ADDR *)
- xcalloc (1, SIZEOF_FRAME_SAVED_REGS);
- make_cleanup (xfree, caller_fi.saved_regs);
+ struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
+ struct frame_info *caller_fi =
+ deprecated_frame_xmalloc_with_cleanup (SIZEOF_FRAME_SAVED_REGS,
+ sizeof (struct frame_extra_info));
/* Now, scan the prologue and obtain the frame register. */
- caller_fi.pc = caller_pc;
- arm_scan_prologue (&caller_fi);
- framereg = caller_fi.extra_info->framereg;
+ deprecated_update_frame_pc_hack (caller_fi, caller_pc);
+ arm_scan_prologue (caller_fi);
+ framereg = get_frame_extra_info (caller_fi)->framereg;
/* Deallocate the storage associated with the temporary frame
created above. */
if (framereg == ARM_FP_REGNUM || framereg == THUMB_FP_REGNUM)
return arm_find_callers_reg (fi, framereg);
else
- return fi->frame + fi->extra_info->framesize;
+ return get_frame_base (fi) + get_frame_extra_info (fi)->framesize;
}
/* This function actually figures out the frame address for a given pc
int reg;
CORE_ADDR sp;
- if (fi->saved_regs == NULL)
+ if (get_frame_saved_regs (fi) == NULL)
frame_saved_regs_zalloc (fi);
- fi->extra_info = (struct frame_extra_info *)
- frame_obstack_alloc (sizeof (struct frame_extra_info));
+ frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
- fi->extra_info->framesize = 0;
- fi->extra_info->frameoffset = 0;
- fi->extra_info->framereg = 0;
+ get_frame_extra_info (fi)->framesize = 0;
+ get_frame_extra_info (fi)->frameoffset = 0;
+ get_frame_extra_info (fi)->framereg = 0;
- if (fi->next)
- fi->pc = FRAME_SAVED_PC (fi->next);
+ if (get_next_frame (fi))
+ deprecated_update_frame_pc_hack (fi, DEPRECATED_FRAME_SAVED_PC (get_next_frame (fi)));
- memset (fi->saved_regs, '\000', sizeof fi->saved_regs);
+ memset (get_frame_saved_regs (fi), '\000', sizeof get_frame_saved_regs (fi));
/* Compute stack pointer for this frame. We use this value for both
the sigtramp and call dummy cases. */
- if (!fi->next)
+ if (!get_next_frame (fi))
sp = read_sp();
- else if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (fi->next->pc, 0, 0))
+ else if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (get_next_frame (fi)), 0, 0))
/* For generic dummy frames, pull the value direct from the frame.
Having an unwind function to do this would be nice. */
- sp = generic_read_register_dummy (fi->next->pc, fi->next->frame,
- ARM_SP_REGNUM);
+ sp = deprecated_read_register_dummy (get_frame_pc (get_next_frame (fi)),
+ get_frame_base (get_next_frame (fi)),
+ ARM_SP_REGNUM);
else
- sp = (fi->next->frame - fi->next->extra_info->frameoffset
- + fi->next->extra_info->framesize);
+ sp = (get_frame_base (get_next_frame (fi))
+ - get_frame_extra_info (get_next_frame (fi))->frameoffset
+ + get_frame_extra_info (get_next_frame (fi))->framesize);
/* Determine whether or not we're in a sigtramp frame.
- Unfortunately, it isn't sufficient to test
- fi->signal_handler_caller because this value is sometimes set
- after invoking INIT_EXTRA_FRAME_INFO. So we test *both*
- fi->signal_handler_caller and PC_IN_SIGTRAMP to determine if we
- need to use the sigcontext addresses for the saved registers.
+ Unfortunately, it isn't sufficient to test (get_frame_type (fi)
+ == SIGTRAMP_FRAME) because this value is sometimes set after
+ invoking DEPRECATED_INIT_EXTRA_FRAME_INFO. So we test *both*
+ (get_frame_type (fi) == SIGTRAMP_FRAME) and PC_IN_SIGTRAMP to
+ determine if we need to use the sigcontext addresses for the
+ saved registers.
Note: If an ARM PC_IN_SIGTRAMP method ever needs to compare
against the name of the function, the code below will have to be
changed to first fetch the name of the function and then pass
this name to PC_IN_SIGTRAMP. */
+ /* FIXME: cagney/2002-11-18: This problem will go away once
+ frame.c:get_prev_frame() is modified to set the frame's type
+ before calling functions like this. */
+
if (SIGCONTEXT_REGISTER_ADDRESS_P ()
- && (fi->signal_handler_caller || PC_IN_SIGTRAMP (fi->pc, (char *)0)))
+ && ((get_frame_type (fi) == SIGTRAMP_FRAME) || PC_IN_SIGTRAMP (get_frame_pc (fi), (char *)0)))
{
for (reg = 0; reg < NUM_REGS; reg++)
- fi->saved_regs[reg] = SIGCONTEXT_REGISTER_ADDRESS (sp, fi->pc, reg);
+ get_frame_saved_regs (fi)[reg] = SIGCONTEXT_REGISTER_ADDRESS (sp, get_frame_pc (fi), reg);
/* FIXME: What about thumb mode? */
- fi->extra_info->framereg = ARM_SP_REGNUM;
- fi->frame =
- read_memory_integer (fi->saved_regs[fi->extra_info->framereg],
- REGISTER_RAW_SIZE (fi->extra_info->framereg));
- fi->extra_info->framesize = 0;
- fi->extra_info->frameoffset = 0;
+ get_frame_extra_info (fi)->framereg = ARM_SP_REGNUM;
+ deprecated_update_frame_base_hack (fi, read_memory_integer (get_frame_saved_regs (fi)[get_frame_extra_info (fi)->framereg], REGISTER_RAW_SIZE (get_frame_extra_info (fi)->framereg)));
+ get_frame_extra_info (fi)->framesize = 0;
+ get_frame_extra_info (fi)->frameoffset = 0;
}
- else if (PC_IN_CALL_DUMMY (fi->pc, sp, fi->frame))
- {
- CORE_ADDR rp;
- CORE_ADDR callers_sp;
-
- /* Set rp point at the high end of the saved registers. */
- rp = fi->frame - REGISTER_SIZE;
-
- /* Fill in addresses of saved registers. */
- fi->saved_regs[ARM_PS_REGNUM] = rp;
- rp -= REGISTER_RAW_SIZE (ARM_PS_REGNUM);
- for (reg = ARM_PC_REGNUM; reg >= 0; reg--)
- {
- fi->saved_regs[reg] = rp;
- rp -= REGISTER_RAW_SIZE (reg);
- }
-
- callers_sp = read_memory_integer (fi->saved_regs[ARM_SP_REGNUM],
- REGISTER_RAW_SIZE (ARM_SP_REGNUM));
- fi->extra_info->framereg = ARM_FP_REGNUM;
- fi->extra_info->framesize = callers_sp - sp;
- fi->extra_info->frameoffset = fi->frame - sp;
- }
else
{
arm_scan_prologue (fi);
- if (!fi->next)
+ if (!get_next_frame (fi))
/* This is the innermost frame? */
- fi->frame = read_register (fi->extra_info->framereg);
- else if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (fi->next->pc, 0, 0))
+ deprecated_update_frame_base_hack (fi, read_register (get_frame_extra_info (fi)->framereg));
+ else if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (get_next_frame (fi)), 0, 0))
/* Next inner most frame is a dummy, just grab its frame.
Dummy frames always have the same FP as their caller. */
- fi->frame = fi->next->frame;
- else if (fi->extra_info->framereg == ARM_FP_REGNUM
- || fi->extra_info->framereg == THUMB_FP_REGNUM)
+ deprecated_update_frame_base_hack (fi, get_frame_base (get_next_frame (fi)));
+ else if (get_frame_extra_info (fi)->framereg == ARM_FP_REGNUM
+ || get_frame_extra_info (fi)->framereg == THUMB_FP_REGNUM)
{
/* not the innermost frame */
/* If we have an FP, the callee saved it. */
- if (fi->next->saved_regs[fi->extra_info->framereg] != 0)
- fi->frame =
- read_memory_integer (fi->next
- ->saved_regs[fi->extra_info->framereg], 4);
+ if (get_frame_saved_regs (get_next_frame (fi))[get_frame_extra_info (fi)->framereg] != 0)
+ deprecated_update_frame_base_hack (fi, read_memory_integer (get_frame_saved_regs (get_next_frame (fi))[get_frame_extra_info (fi)->framereg], 4));
else if (fromleaf)
/* If we were called by a frameless fn. then our frame is
still in the frame pointer register on the board... */
- fi->frame = read_fp ();
+ deprecated_update_frame_base_hack (fi, deprecated_read_fp ());
}
/* Calculate actual addresses of saved registers using offsets
determined by arm_scan_prologue. */
for (reg = 0; reg < NUM_REGS; reg++)
- if (fi->saved_regs[reg] != 0)
- fi->saved_regs[reg] += (fi->frame + fi->extra_info->framesize
- - fi->extra_info->frameoffset);
+ if (get_frame_saved_regs (fi)[reg] != 0)
+ get_frame_saved_regs (fi)[reg]
+ += (get_frame_base (fi)
+ + get_frame_extra_info (fi)->framesize
+ - get_frame_extra_info (fi)->frameoffset);
}
}
arm_frame_saved_pc (struct frame_info *fi)
{
/* If a dummy frame, pull the PC out of the frame's register buffer. */
- if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (fi->pc, 0, 0))
- return generic_read_register_dummy (fi->pc, fi->frame, ARM_PC_REGNUM);
-
- if (PC_IN_CALL_DUMMY (fi->pc, fi->frame - fi->extra_info->frameoffset,
- fi->frame))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), 0, 0))
+ return deprecated_read_register_dummy (get_frame_pc (fi),
+ get_frame_base (fi), ARM_PC_REGNUM);
+
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi),
+ (get_frame_base (fi)
+ - get_frame_extra_info (fi)->frameoffset),
+ get_frame_base (fi)))
{
- return read_memory_integer (fi->saved_regs[ARM_PC_REGNUM],
+ return read_memory_integer (get_frame_saved_regs (fi)[ARM_PC_REGNUM],
REGISTER_RAW_SIZE (ARM_PC_REGNUM));
}
else
arm_frame_init_saved_regs (struct frame_info *fip)
{
- if (fip->saved_regs)
+ if (get_frame_saved_regs (fip))
return;
arm_init_extra_frame_info (0, fip);
write_register (ARM_SP_REGNUM, sp);
}
-/* CALL_DUMMY_WORDS:
+/* DEPRECATED_CALL_DUMMY_WORDS:
This sequence of words is the instructions
mov lr,pc
FIXME rearnsha 2002-02018: Tweeking current_gdbarch is not an
optimal solution, but the call to arm_fix_call_dummy is immediately
- followed by a call to run_stack_dummy, which is the only function
- where call_dummy_breakpoint_offset is actually used. */
+ followed by a call to call_function_by_hand, which is the only
+ function where call_dummy_breakpoint_offset is actually used. */
static void
arm_set_call_dummy_breakpoint_offset (void)
{
if (caller_is_thumb)
- set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 4);
+ set_gdbarch_deprecated_call_dummy_breakpoint_offset (current_gdbarch, 4);
else
- set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 8);
+ set_gdbarch_deprecated_call_dummy_breakpoint_offset (current_gdbarch, 8);
}
/* Fix up the call dummy, based on whether the processor is currently
write_register (4, fun);
}
-/* Note: ScottB
+/* Pop the current frame. So long as the frame info has been
+ initialized properly (see arm_init_extra_frame_info), this code
+ works for dummy frames as well as regular frames. I.e, there's no
+ need to have a special case for dummy frames. */
+static void
+arm_pop_frame (void)
+{
+ int regnum;
+ struct frame_info *frame = get_current_frame ();
+ CORE_ADDR old_SP = (get_frame_base (frame)
+ - get_frame_extra_info (frame)->frameoffset
+ + get_frame_extra_info (frame)->framesize);
- This function does not support passing parameters using the FPA
- variant of the APCS. It passes any floating point arguments in the
- general registers and/or on the stack. */
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame),
+ get_frame_base (frame),
+ get_frame_base (frame)))
+ {
+ generic_pop_dummy_frame ();
+ flush_cached_frames ();
+ return;
+ }
+
+ for (regnum = 0; regnum < NUM_REGS; regnum++)
+ if (get_frame_saved_regs (frame)[regnum] != 0)
+ write_register (regnum,
+ read_memory_integer (get_frame_saved_regs (frame)[regnum],
+ REGISTER_RAW_SIZE (regnum)));
+
+ write_register (ARM_PC_REGNUM, DEPRECATED_FRAME_SAVED_PC (frame));
+ write_register (ARM_SP_REGNUM, old_SP);
+
+ flush_cached_frames ();
+}
+
+/* When arguments must be pushed onto the stack, they go on in reverse
+ order. The code below implements a FILO (stack) to do this. */
+
+struct stack_item
+{
+ int len;
+ struct stack_item *prev;
+ void *data;
+};
+
+static struct stack_item *
+push_stack_item (struct stack_item *prev, void *contents, int len)
+{
+ struct stack_item *si;
+ si = xmalloc (sizeof (struct stack_item));
+ si->data = xmalloc (len);
+ si->len = len;
+ si->prev = prev;
+ memcpy (si->data, contents, len);
+ return si;
+}
+
+static struct stack_item *
+pop_stack_item (struct stack_item *si)
+{
+ struct stack_item *dead = si;
+ si = si->prev;
+ xfree (dead->data);
+ xfree (dead);
+ return si;
+}
+
+/* We currently only support passing parameters in integer registers. This
+ conforms with GCC's default model. Several other variants exist and
+ we should probably support some of them based on the selected ABI. */
static CORE_ADDR
-arm_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
- int struct_return, CORE_ADDR struct_addr)
+arm_push_dummy_call (struct gdbarch *gdbarch, struct regcache *regcache,
+ CORE_ADDR dummy_addr, int nargs, struct value **args,
+ CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr)
{
- char *fp;
- int argnum, argreg, nstack_size;
+ int argnum;
+ int argreg;
+ int nstack;
+ struct stack_item *si = NULL;
+
+ /* Set the return address. For the ARM, the return breakpoint is always
+ at DUMMY_ADDR. */
+ /* XXX Fix for Thumb. */
+ regcache_cooked_write_unsigned (regcache, ARM_LR_REGNUM, dummy_addr);
/* Walk through the list of args and determine how large a temporary
stack is required. Need to take care here as structs may be
passed on the stack, and we have to to push them. */
- nstack_size = -4 * REGISTER_SIZE; /* Some arguments go into A1-A4. */
- if (struct_return) /* The struct address goes in A1. */
- nstack_size += REGISTER_SIZE;
-
- /* Walk through the arguments and add their size to nstack_size. */
- for (argnum = 0; argnum < nargs; argnum++)
- {
- int len;
- struct type *arg_type;
+ nstack = 0;
- arg_type = check_typedef (VALUE_TYPE (args[argnum]));
- len = TYPE_LENGTH (arg_type);
+ argreg = ARM_A1_REGNUM;
+ nstack = 0;
- nstack_size += len;
- }
+ /* Some platforms require a double-word aligned stack. Make sure sp
+ is correctly aligned before we start. We always do this even if
+ it isn't really needed -- it can never hurt things. */
+ sp &= ~(CORE_ADDR)(2 * DEPRECATED_REGISTER_SIZE - 1);
- /* Allocate room on the stack, and initialize our stack frame
- pointer. */
- fp = NULL;
- if (nstack_size > 0)
+ /* The struct_return pointer occupies the first parameter
+ passing register. */
+ if (struct_return)
{
- sp -= nstack_size;
- fp = (char *) sp;
+ if (arm_debug)
+ fprintf_unfiltered (gdb_stdlog, "struct return in %s = 0x%s\n",
+ REGISTER_NAME (argreg), paddr (struct_addr));
+ regcache_cooked_write_unsigned (regcache, argreg, struct_addr);
+ argreg++;
}
- /* Initialize the integer argument register pointer. */
- argreg = ARM_A1_REGNUM;
-
- /* The struct_return pointer occupies the first parameter passing
- register. */
- if (struct_return)
- write_register (argreg++, struct_addr);
-
- /* Process arguments from left to right. Store as many as allowed
- in the parameter passing registers (A1-A4), and save the rest on
- the temporary stack. */
for (argnum = 0; argnum < nargs; argnum++)
{
int len;
- char *val;
- CORE_ADDR regval;
+ struct type *arg_type;
+ struct type *target_type;
enum type_code typecode;
- struct type *arg_type, *target_type;
+ char *val;
arg_type = check_typedef (VALUE_TYPE (args[argnum]));
- target_type = TYPE_TARGET_TYPE (arg_type);
len = TYPE_LENGTH (arg_type);
+ target_type = TYPE_TARGET_TYPE (arg_type);
typecode = TYPE_CODE (arg_type);
- val = (char *) VALUE_CONTENTS (args[argnum]);
-
-#if 1
- /* I don't know why this code was disable. The only logical use
- for a function pointer is to call that function, so setting
- the mode bit is perfectly fine. FN */
- /* If the argument is a pointer to a function, and it is a Thumb
- function, set the low bit of the pointer. */
+ val = VALUE_CONTENTS (args[argnum]);
+
+ /* If the argument is a pointer to a function, and it is a
+ Thumb function, create a LOCAL copy of the value and set
+ the THUMB bit in it. */
if (TYPE_CODE_PTR == typecode
- && NULL != target_type
+ && target_type != NULL
&& TYPE_CODE_FUNC == TYPE_CODE (target_type))
{
CORE_ADDR regval = extract_address (val, len);
if (arm_pc_is_thumb (regval))
- store_address (val, len, MAKE_THUMB_ADDR (regval));
+ {
+ val = alloca (len);
+ store_unsigned_integer (val, len, MAKE_THUMB_ADDR (regval));
+ }
}
-#endif
+
/* Copy the argument to general registers or the stack in
- register-sized pieces. Large arguments are split between
- registers and stack. */
+ register-sized pieces. Large arguments are split between
+ registers and stack. */
while (len > 0)
{
- int partial_len = len < REGISTER_SIZE ? len : REGISTER_SIZE;
+ int partial_len = len < DEPRECATED_REGISTER_SIZE ? len : DEPRECATED_REGISTER_SIZE;
if (argreg <= ARM_LAST_ARG_REGNUM)
{
- /* It's an argument being passed in a general register. */
- regval = extract_address (val, partial_len);
- write_register (argreg++, regval);
+ /* The argument is being passed in a general purpose
+ register. */
+ CORE_ADDR regval = extract_address (val, partial_len);
+ if (arm_debug)
+ fprintf_unfiltered (gdb_stdlog, "arg %d in %s = 0x%s\n",
+ argnum, REGISTER_NAME (argreg),
+ phex (regval, DEPRECATED_REGISTER_SIZE));
+ regcache_cooked_write_unsigned (regcache, argreg, regval);
+ argreg++;
}
else
{
/* Push the arguments onto the stack. */
- write_memory ((CORE_ADDR) fp, val, REGISTER_SIZE);
- fp += REGISTER_SIZE;
+ if (arm_debug)
+ fprintf_unfiltered (gdb_stdlog, "arg %d @ sp + %d\n",
+ argnum, nstack);
+ si = push_stack_item (si, val, DEPRECATED_REGISTER_SIZE);
+ nstack += DEPRECATED_REGISTER_SIZE;
}
-
+
len -= partial_len;
val += partial_len;
}
}
+ /* If we have an odd number of words to push, then decrement the stack
+ by one word now, so first stack argument will be dword aligned. */
+ if (nstack & 4)
+ sp -= 4;
- /* Return adjusted stack pointer. */
- return sp;
-}
-
-/* Pop the current frame. So long as the frame info has been
- initialized properly (see arm_init_extra_frame_info), this code
- works for dummy frames as well as regular frames. I.e, there's no
- need to have a special case for dummy frames. */
-static void
-arm_pop_frame (void)
-{
- int regnum;
- struct frame_info *frame = get_current_frame ();
- CORE_ADDR old_SP = (frame->frame - frame->extra_info->frameoffset
- + frame->extra_info->framesize);
-
- if (USE_GENERIC_DUMMY_FRAMES
- && PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
+ while (si)
{
- generic_pop_dummy_frame ();
- flush_cached_frames ();
- return;
+ sp -= si->len;
+ write_memory (sp, si->data, si->len);
+ si = pop_stack_item (si);
}
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- if (frame->saved_regs[regnum] != 0)
- write_register (regnum,
- read_memory_integer (frame->saved_regs[regnum],
- REGISTER_RAW_SIZE (regnum)));
-
- write_register (ARM_PC_REGNUM, FRAME_SAVED_PC (frame));
- write_register (ARM_SP_REGNUM, old_SP);
+ /* Finally, update teh SP register. */
+ regcache_cooked_write_unsigned (regcache, ARM_SP_REGNUM, sp);
- flush_cached_frames ();
+ return sp;
}
static void
(if present) or emulator. */
static void
arm_print_float_info (struct gdbarch *gdbarch, struct ui_file *file,
- struct frame_info *frame)
+ struct frame_info *frame, const char *args)
{
register unsigned long status = read_register (ARM_FPS_REGNUM);
int type;
little-endian systems. */
static void
-convert_from_extended (void *ptr, void *dbl)
+convert_from_extended (const struct floatformat *fmt, const void *ptr,
+ void *dbl)
{
DOUBLEST d;
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
else
floatformat_to_doublest (&floatformat_arm_ext_littlebyte_bigword,
ptr, &d);
- floatformat_from_doublest (TARGET_DOUBLE_FORMAT, &d, dbl);
+ floatformat_from_doublest (fmt, &d, dbl);
}
static void
-convert_to_extended (void *dbl, void *ptr)
+convert_to_extended (const struct floatformat *fmt, void *dbl, const void *ptr)
{
DOUBLEST d;
- floatformat_to_doublest (TARGET_DOUBLE_FORMAT, ptr, &d);
+ floatformat_to_doublest (fmt, ptr, &d);
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
floatformat_from_doublest (&floatformat_arm_ext_big, &d, dbl);
else
/* Fetch the saved PC from the stack. It's stored above
all of the other registers. */
- offset = bitcount (bits (inst1, 0, 7)) * REGISTER_SIZE;
+ offset = bitcount (bits (inst1, 0, 7)) * DEPRECATED_REGISTER_SIZE;
sp = read_register (ARM_SP_REGNUM);
nextpc = (CORE_ADDR) read_memory_integer (sp + offset, 4);
nextpc = ADDR_BITS_REMOVE (nextpc);
static asymbol *asym;
static combined_entry_type ce;
static struct coff_symbol_struct csym;
- static struct _bfd fake_bfd;
+ static struct bfd fake_bfd;
static bfd_target fake_target;
if (csym.native == NULL)
static void
arm_extract_return_value (struct type *type,
- char regbuf[REGISTER_BYTES],
- char *valbuf)
+ struct regcache *regs,
+ void *dst)
{
+ bfd_byte *valbuf = dst;
+
if (TYPE_CODE_FLT == TYPE_CODE (type))
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
-
- switch (tdep->fp_model)
+ switch (arm_get_fp_model (current_gdbarch))
{
case ARM_FLOAT_FPA:
- convert_from_extended (®buf[REGISTER_BYTE (ARM_F0_REGNUM)],
- valbuf);
+ {
+ /* The value is in register F0 in internal format. We need to
+ extract the raw value and then convert it to the desired
+ internal type. */
+ bfd_byte tmpbuf[FP_REGISTER_RAW_SIZE];
+
+ regcache_cooked_read (regs, ARM_F0_REGNUM, tmpbuf);
+ convert_from_extended (floatformat_from_type (type), tmpbuf,
+ valbuf);
+ }
break;
- case ARM_FLOAT_SOFT:
+ case ARM_FLOAT_SOFT_FPA:
case ARM_FLOAT_SOFT_VFP:
- memcpy (valbuf, ®buf[REGISTER_BYTE (ARM_A1_REGNUM)],
- TYPE_LENGTH (type));
+ regcache_cooked_read (regs, ARM_A1_REGNUM, valbuf);
+ if (TYPE_LENGTH (type) > 4)
+ regcache_cooked_read (regs, ARM_A1_REGNUM + 1,
+ valbuf + INT_REGISTER_RAW_SIZE);
break;
default:
break;
}
}
+ else if (TYPE_CODE (type) == TYPE_CODE_INT
+ || TYPE_CODE (type) == TYPE_CODE_CHAR
+ || TYPE_CODE (type) == TYPE_CODE_BOOL
+ || TYPE_CODE (type) == TYPE_CODE_PTR
+ || TYPE_CODE (type) == TYPE_CODE_REF
+ || TYPE_CODE (type) == TYPE_CODE_ENUM)
+ {
+ /* If the the type is a plain integer, then the access is
+ straight-forward. Otherwise we have to play around a bit more. */
+ int len = TYPE_LENGTH (type);
+ int regno = ARM_A1_REGNUM;
+ ULONGEST tmp;
+
+ while (len > 0)
+ {
+ /* By using store_unsigned_integer we avoid having to do
+ anything special for small big-endian values. */
+ regcache_cooked_read_unsigned (regs, regno++, &tmp);
+ store_unsigned_integer (valbuf,
+ (len > INT_REGISTER_RAW_SIZE
+ ? INT_REGISTER_RAW_SIZE : len),
+ tmp);
+ len -= INT_REGISTER_RAW_SIZE;
+ valbuf += INT_REGISTER_RAW_SIZE;
+ }
+ }
else
- memcpy (valbuf, ®buf[REGISTER_BYTE (ARM_A1_REGNUM)],
- TYPE_LENGTH (type));
+ {
+ /* For a structure or union the behaviour is as if the value had
+ been stored to word-aligned memory and then loaded into
+ registers with 32-bit load instruction(s). */
+ int len = TYPE_LENGTH (type);
+ int regno = ARM_A1_REGNUM;
+ bfd_byte tmpbuf[INT_REGISTER_RAW_SIZE];
+
+ while (len > 0)
+ {
+ regcache_cooked_read (regs, regno++, tmpbuf);
+ memcpy (valbuf, tmpbuf,
+ len > INT_REGISTER_RAW_SIZE ? INT_REGISTER_RAW_SIZE : len);
+ len -= INT_REGISTER_RAW_SIZE;
+ valbuf += INT_REGISTER_RAW_SIZE;
+ }
+ }
}
/* Extract from an array REGBUF containing the (raw) register state
the address in which a function should return its structure value. */
static CORE_ADDR
-arm_extract_struct_value_address (char *regbuf)
+arm_extract_struct_value_address (struct regcache *regcache)
{
- return extract_address (regbuf, REGISTER_RAW_SIZE(ARM_A1_REGNUM));
+ ULONGEST ret;
+
+ regcache_cooked_read_unsigned (regcache, ARM_A1_REGNUM, &ret);
+ return ret;
}
/* Will a function return an aggregate type in memory or in a
/* In the ARM ABI, "integer" like aggregate types are returned in
registers. For an aggregate type to be integer like, its size
- must be less than or equal to REGISTER_SIZE and the offset of
- each addressable subfield must be zero. Note that bit fields are
- not addressable, and all addressable subfields of unions always
- start at offset zero.
+ must be less than or equal to DEPRECATED_REGISTER_SIZE and the
+ offset of each addressable subfield must be zero. Note that bit
+ fields are not addressable, and all addressable subfields of
+ unions always start at offset zero.
This function is based on the behaviour of GCC 2.95.1.
See: gcc/arm.c: arm_return_in_memory() for details.
/* All aggregate types that won't fit in a register must be returned
in memory. */
- if (TYPE_LENGTH (type) > REGISTER_SIZE)
+ if (TYPE_LENGTH (type) > DEPRECATED_REGISTER_SIZE)
{
return 1;
}
int i;
/* Need to check if this struct/union is "integer" like. For
this to be true, its size must be less than or equal to
- REGISTER_SIZE and the offset of each addressable subfield
- must be zero. Note that bit fields are not addressable, and
- unions always start at offset zero. If any of the subfields
- is a floating point type, the struct/union cannot be an
- integer type. */
+ DEPRECATED_REGISTER_SIZE and the offset of each addressable
+ subfield must be zero. Note that bit fields are not
+ addressable, and unions always start at offset zero. If any
+ of the subfields is a floating point type, the struct/union
+ cannot be an integer type. */
/* For each field in the object, check:
1) Is it FP? --> yes, nRc = 1;
TYPE, given in virtual format. */
static void
-arm_store_return_value (struct type *type, char *valbuf)
+arm_store_return_value (struct type *type, struct regcache *regs,
+ const void *src)
{
+ const bfd_byte *valbuf = src;
+
if (TYPE_CODE (type) == TYPE_CODE_FLT)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
char buf[ARM_MAX_REGISTER_RAW_SIZE];
- switch (tdep->fp_model)
+ switch (arm_get_fp_model (current_gdbarch))
{
case ARM_FLOAT_FPA:
- convert_to_extended (valbuf, buf);
- write_register_bytes (REGISTER_BYTE (ARM_F0_REGNUM), buf,
- FP_REGISTER_RAW_SIZE);
+ convert_to_extended (floatformat_from_type (type), buf, valbuf);
+ regcache_cooked_write (regs, ARM_F0_REGNUM, buf);
break;
- case ARM_FLOAT_SOFT:
+ case ARM_FLOAT_SOFT_FPA:
case ARM_FLOAT_SOFT_VFP:
- write_register_bytes (ARM_A1_REGNUM, valbuf, TYPE_LENGTH (type));
+ regcache_cooked_write (regs, ARM_A1_REGNUM, valbuf);
+ if (TYPE_LENGTH (type) > 4)
+ regcache_cooked_write (regs, ARM_A1_REGNUM + 1,
+ valbuf + INT_REGISTER_RAW_SIZE);
break;
default:
break;
}
}
- else
- write_register_bytes (ARM_A1_REGNUM, valbuf, TYPE_LENGTH (type));
-}
+ else if (TYPE_CODE (type) == TYPE_CODE_INT
+ || TYPE_CODE (type) == TYPE_CODE_CHAR
+ || TYPE_CODE (type) == TYPE_CODE_BOOL
+ || TYPE_CODE (type) == TYPE_CODE_PTR
+ || TYPE_CODE (type) == TYPE_CODE_REF
+ || TYPE_CODE (type) == TYPE_CODE_ENUM)
+ {
+ if (TYPE_LENGTH (type) <= 4)
+ {
+ /* Values of one word or less are zero/sign-extended and
+ returned in r0. */
+ bfd_byte tmpbuf[INT_REGISTER_RAW_SIZE];
+ LONGEST val = unpack_long (type, valbuf);
+
+ store_signed_integer (tmpbuf, INT_REGISTER_RAW_SIZE, val);
+ regcache_cooked_write (regs, ARM_A1_REGNUM, tmpbuf);
+ }
+ else
+ {
+ /* Integral values greater than one word are stored in consecutive
+ registers starting with r0. This will always be a multiple of
+ the regiser size. */
+ int len = TYPE_LENGTH (type);
+ int regno = ARM_A1_REGNUM;
-/* Store the address of the place in which to copy the structure the
- subroutine will return. This is called from call_function. */
+ while (len > 0)
+ {
+ regcache_cooked_write (regs, regno++, valbuf);
+ len -= INT_REGISTER_RAW_SIZE;
+ valbuf += INT_REGISTER_RAW_SIZE;
+ }
+ }
+ }
+ else
+ {
+ /* For a structure or union the behaviour is as if the value had
+ been stored to word-aligned memory and then loaded into
+ registers with 32-bit load instruction(s). */
+ int len = TYPE_LENGTH (type);
+ int regno = ARM_A1_REGNUM;
+ bfd_byte tmpbuf[INT_REGISTER_RAW_SIZE];
-static void
-arm_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
-{
- write_register (ARM_A1_REGNUM, addr);
+ while (len > 0)
+ {
+ memcpy (tmpbuf, valbuf,
+ len > INT_REGISTER_RAW_SIZE ? INT_REGISTER_RAW_SIZE : len);
+ regcache_cooked_write (regs, regno++, tmpbuf);
+ len -= INT_REGISTER_RAW_SIZE;
+ valbuf += INT_REGISTER_RAW_SIZE;
+ }
+ }
}
static int
return 0; /* not a stub */
}
-/* If the user changes the register disassembly flavor used for info
- register and other commands, we have to also switch the flavor used
- in opcodes for disassembly output. This function is run in the set
- disassembly_flavor command, and does that. */
+static void
+set_arm_command (char *args, int from_tty)
+{
+ printf_unfiltered ("\"set arm\" must be followed by an apporpriate subcommand.\n");
+ help_list (setarmcmdlist, "set arm ", all_commands, gdb_stdout);
+}
static void
-set_disassembly_flavor_sfunc (char *args, int from_tty,
+show_arm_command (char *args, int from_tty)
+{
+ cmd_show_list (showarmcmdlist, from_tty, "");
+}
+
+enum arm_float_model
+arm_get_fp_model (struct gdbarch *gdbarch)
+{
+ if (arm_fp_model == ARM_FLOAT_AUTO)
+ return gdbarch_tdep (gdbarch)->fp_model;
+
+ return arm_fp_model;
+}
+
+static void
+arm_set_fp (struct gdbarch *gdbarch)
+{
+ enum arm_float_model fp_model = arm_get_fp_model (gdbarch);
+
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE
+ && (fp_model == ARM_FLOAT_SOFT_FPA || fp_model == ARM_FLOAT_FPA))
+ {
+ set_gdbarch_double_format (gdbarch,
+ &floatformat_ieee_double_littlebyte_bigword);
+ set_gdbarch_long_double_format
+ (gdbarch, &floatformat_ieee_double_littlebyte_bigword);
+ }
+ else
+ {
+ set_gdbarch_double_format (gdbarch, &floatformat_ieee_double_little);
+ set_gdbarch_long_double_format (gdbarch,
+ &floatformat_ieee_double_little);
+ }
+}
+
+static void
+set_fp_model_sfunc (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ enum arm_float_model fp_model;
+
+ for (fp_model = ARM_FLOAT_AUTO; fp_model != ARM_FLOAT_LAST; fp_model++)
+ if (strcmp (current_fp_model, fp_model_strings[fp_model]) == 0)
+ {
+ arm_fp_model = fp_model;
+ break;
+ }
+
+ if (fp_model == ARM_FLOAT_LAST)
+ internal_error (__FILE__, __LINE__, "Invalid fp model accepted: %s.",
+ current_fp_model);
+
+ if (gdbarch_bfd_arch_info (current_gdbarch)->arch == bfd_arch_arm)
+ arm_set_fp (current_gdbarch);
+}
+
+static void
+show_fp_model (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ if (arm_fp_model == ARM_FLOAT_AUTO
+ && gdbarch_bfd_arch_info (current_gdbarch)->arch == bfd_arch_arm)
+ printf_filtered (" - the default for the current ABI is \"%s\".\n",
+ fp_model_strings[tdep->fp_model]);
+}
+
+/* If the user changes the register disassembly style used for info
+ register and other commands, we have to also switch the style used
+ in opcodes for disassembly output. This function is run in the "set
+ arm disassembly" command, and does that. */
+
+static void
+set_disassembly_style_sfunc (char *args, int from_tty,
struct cmd_list_element *c)
{
- set_disassembly_flavor ();
+ set_disassembly_style ();
}
\f
/* Return the ARM register name corresponding to register I. */
-static char *
+static const char *
arm_register_name (int i)
{
return arm_register_names[i];
}
static void
-set_disassembly_flavor (void)
+set_disassembly_style (void)
{
const char *setname, *setdesc, **regnames;
int numregs, j;
- /* Find the flavor that the user wants in the opcodes table. */
+ /* Find the style that the user wants in the opcodes table. */
int current = 0;
numregs = get_arm_regnames (current, &setname, &setdesc, ®names);
- while ((disassembly_flavor != setname)
- && (current < num_flavor_options))
+ while ((disassembly_style != setname)
+ && (current < num_disassembly_options))
get_arm_regnames (++current, &setname, &setdesc, ®names);
current_option = current;
set_arm_regname_option (current);
}
-/* arm_othernames implements the "othernames" command. This is kind
- of hacky, and I prefer the set-show disassembly-flavor which is
- also used for the x86 gdb. I will keep this around, however, in
- case anyone is actually using it. */
+/* arm_othernames implements the "othernames" command. This is deprecated
+ by the "set arm disassembly" command. */
static void
arm_othernames (char *names, int n)
{
/* Circle through the various flavors. */
- current_option = (current_option + 1) % num_flavor_options;
+ current_option = (current_option + 1) % num_disassembly_options;
- disassembly_flavor = valid_flavors[current_option];
- set_disassembly_flavor ();
+ disassembly_style = valid_disassembly_styles[current_option];
+ set_disassembly_style ();
}
/* Fetch, and possibly build, an appropriate link_map_offsets structure
{
struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
- enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
/* Try to deterimine the ABI of the object we are loading. */
- if (info.abfd != NULL)
+ if (info.abfd != NULL && info.osabi == GDB_OSABI_UNKNOWN)
{
- osabi = gdbarch_lookup_osabi (info.abfd);
- if (osabi == GDB_OSABI_UNKNOWN)
+ switch (bfd_get_flavour (info.abfd))
{
- switch (bfd_get_flavour (info.abfd))
- {
- case bfd_target_aout_flavour:
- /* Assume it's an old APCS-style ABI. */
- osabi = GDB_OSABI_ARM_APCS;
- break;
+ case bfd_target_aout_flavour:
+ /* Assume it's an old APCS-style ABI. */
+ info.osabi = GDB_OSABI_ARM_APCS;
+ break;
- case bfd_target_coff_flavour:
- /* Assume it's an old APCS-style ABI. */
- /* XXX WinCE? */
- osabi = GDB_OSABI_ARM_APCS;
- break;
+ case bfd_target_coff_flavour:
+ /* Assume it's an old APCS-style ABI. */
+ /* XXX WinCE? */
+ info.osabi = GDB_OSABI_ARM_APCS;
+ break;
- default:
- /* Leave it as "unknown". */
- }
+ default:
+ /* Leave it as "unknown". */
+ break;
}
}
- /* Find a candidate among extant architectures. */
- for (arches = gdbarch_list_lookup_by_info (arches, &info);
- arches != NULL;
- arches = gdbarch_list_lookup_by_info (arches->next, &info))
- {
- /* Make sure the ABI selection matches. */
- tdep = gdbarch_tdep (arches->gdbarch);
- if (tdep && tdep->osabi == osabi)
- return arches->gdbarch;
- }
+ /* If there is already a candidate, use it. */
+ arches = gdbarch_list_lookup_by_info (arches, &info);
+ if (arches != NULL)
+ return arches->gdbarch;
tdep = xmalloc (sizeof (struct gdbarch_tdep));
gdbarch = gdbarch_alloc (&info, tdep);
- tdep->osabi = osabi;
+ /* NOTE: cagney/2002-12-06: This can be deleted when this arch is
+ ready to unwind the PC first (see frame.c:get_prev_frame()). */
+ set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default);
- /* This is the way it has always defaulted. */
- tdep->fp_model = ARM_FLOAT_FPA;
+ /* We used to default to FPA for generic ARM, but almost nobody uses that
+ now, and we now provide a way for the user to force the model. So
+ default to the most useful variant. */
+ tdep->fp_model = ARM_FLOAT_SOFT_FPA;
/* Breakpoints. */
switch (info.byte_order)
tdep->lowest_pc = 0x20;
tdep->jb_pc = -1; /* Longjump support not enabled by default. */
-#if OLD_STYLE_ARM_DUMMY_FRAMES
- /* NOTE: cagney/2002-05-07: Enable the below to restore the old ARM
- specific (non-generic) dummy frame code. Might be useful if
- there appears to be a problem with the generic dummy frame
- mechanism that replaced it. */
- set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
-
- /* Call dummy code. */
- set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
- set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
- /* We have to give this a value now, even though we will re-set it
- during each call to arm_fix_call_dummy. */
- set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 8);
- set_gdbarch_call_dummy_p (gdbarch, 1);
- set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
-
- set_gdbarch_call_dummy_words (gdbarch, arm_call_dummy_words);
- set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (arm_call_dummy_words));
- set_gdbarch_call_dummy_start_offset (gdbarch, 0);
- set_gdbarch_call_dummy_length (gdbarch, 0);
-
- set_gdbarch_fix_call_dummy (gdbarch, arm_fix_call_dummy);
-
- set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_on_stack);
-#else
- set_gdbarch_use_generic_dummy_frames (gdbarch, 1);
- set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
-
- set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
- set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
-
- set_gdbarch_call_dummy_p (gdbarch, 1);
- set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
+ set_gdbarch_deprecated_call_dummy_words (gdbarch, arm_call_dummy_words);
+ set_gdbarch_deprecated_sizeof_call_dummy_words (gdbarch, 0);
- set_gdbarch_call_dummy_words (gdbarch, arm_call_dummy_words);
- set_gdbarch_sizeof_call_dummy_words (gdbarch, 0);
- set_gdbarch_call_dummy_start_offset (gdbarch, 0);
- set_gdbarch_call_dummy_length (gdbarch, 0);
-
- set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy);
- set_gdbarch_pc_in_call_dummy (gdbarch, generic_pc_in_call_dummy);
-
- set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
- set_gdbarch_push_return_address (gdbarch, arm_push_return_address);
-#endif
-
- set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register);
- set_gdbarch_push_arguments (gdbarch, arm_push_arguments);
- set_gdbarch_coerce_float_to_double (gdbarch,
- standard_coerce_float_to_double);
+ set_gdbarch_push_dummy_call (gdbarch, arm_push_dummy_call);
/* Frame handling. */
- set_gdbarch_frame_chain_valid (gdbarch, arm_frame_chain_valid);
- set_gdbarch_init_extra_frame_info (gdbarch, arm_init_extra_frame_info);
- set_gdbarch_read_fp (gdbarch, arm_read_fp);
- set_gdbarch_frame_chain (gdbarch, arm_frame_chain);
+ set_gdbarch_deprecated_frame_chain_valid (gdbarch, arm_frame_chain_valid);
+ set_gdbarch_deprecated_init_extra_frame_info (gdbarch, arm_init_extra_frame_info);
+ set_gdbarch_deprecated_target_read_fp (gdbarch, arm_read_fp);
+ set_gdbarch_deprecated_frame_chain (gdbarch, arm_frame_chain);
set_gdbarch_frameless_function_invocation
(gdbarch, arm_frameless_function_invocation);
- set_gdbarch_frame_saved_pc (gdbarch, arm_frame_saved_pc);
+ set_gdbarch_deprecated_frame_saved_pc (gdbarch, arm_frame_saved_pc);
set_gdbarch_frame_args_address (gdbarch, arm_frame_args_address);
set_gdbarch_frame_locals_address (gdbarch, arm_frame_locals_address);
set_gdbarch_frame_num_args (gdbarch, arm_frame_num_args);
set_gdbarch_frame_args_skip (gdbarch, 0);
- set_gdbarch_frame_init_saved_regs (gdbarch, arm_frame_init_saved_regs);
-#if OLD_STYLE_ARM_DUMMY_FRAMES
- /* NOTE: cagney/2002-05-07: Enable the below to restore the old ARM
- specific (non-generic) dummy frame code. Might be useful if
- there appears to be a problem with the generic dummy frame
- mechanism that replaced it. */
- set_gdbarch_push_dummy_frame (gdbarch, arm_push_dummy_frame);
-#else
- set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
-#endif
- set_gdbarch_pop_frame (gdbarch, arm_pop_frame);
+ set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, arm_frame_init_saved_regs);
+ set_gdbarch_deprecated_pop_frame (gdbarch, arm_pop_frame);
/* Address manipulation. */
set_gdbarch_smash_text_address (gdbarch, arm_smash_text_address);
set_gdbarch_skip_prologue (gdbarch, arm_skip_prologue);
/* Get the PC when a frame might not be available. */
- set_gdbarch_saved_pc_after_call (gdbarch, arm_saved_pc_after_call);
+ set_gdbarch_deprecated_saved_pc_after_call (gdbarch, arm_saved_pc_after_call);
/* The stack grows downward. */
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
/* Information about registers, etc. */
set_gdbarch_print_float_info (gdbarch, arm_print_float_info);
- set_gdbarch_fp_regnum (gdbarch, ARM_FP_REGNUM); /* ??? */
+ set_gdbarch_deprecated_fp_regnum (gdbarch, ARM_FP_REGNUM); /* ??? */
set_gdbarch_sp_regnum (gdbarch, ARM_SP_REGNUM);
set_gdbarch_pc_regnum (gdbarch, ARM_PC_REGNUM);
set_gdbarch_register_byte (gdbarch, arm_register_byte);
set_gdbarch_num_regs (gdbarch, NUM_GREGS + NUM_FREGS + NUM_SREGS);
set_gdbarch_register_raw_size (gdbarch, arm_register_raw_size);
set_gdbarch_register_virtual_size (gdbarch, arm_register_virtual_size);
- set_gdbarch_max_register_raw_size (gdbarch, FP_REGISTER_RAW_SIZE);
- set_gdbarch_max_register_virtual_size (gdbarch, FP_REGISTER_VIRTUAL_SIZE);
+ set_gdbarch_deprecated_max_register_raw_size (gdbarch, FP_REGISTER_RAW_SIZE);
+ set_gdbarch_deprecated_max_register_virtual_size (gdbarch, FP_REGISTER_VIRTUAL_SIZE);
set_gdbarch_register_virtual_type (gdbarch, arm_register_type);
/* Internal <-> external register number maps. */
set_gdbarch_register_sim_regno (gdbarch, arm_register_sim_regno);
/* Integer registers are 4 bytes. */
- set_gdbarch_register_size (gdbarch, 4);
+ set_gdbarch_deprecated_register_size (gdbarch, 4);
set_gdbarch_register_name (gdbarch, arm_register_name);
/* Returning results. */
set_gdbarch_extract_return_value (gdbarch, arm_extract_return_value);
set_gdbarch_store_return_value (gdbarch, arm_store_return_value);
- set_gdbarch_store_struct_return (gdbarch, arm_store_struct_return);
set_gdbarch_use_struct_convention (gdbarch, arm_use_struct_convention);
set_gdbarch_extract_struct_value_address (gdbarch,
arm_extract_struct_value_address);
/* XXX For an RDI target we should ask the target if it can single-step. */
set_gdbarch_software_single_step (gdbarch, arm_software_single_step);
+ /* Disassembly. */
+ set_gdbarch_print_insn (gdbarch, gdb_print_insn_arm);
+
/* Minsymbol frobbing. */
set_gdbarch_elf_make_msymbol_special (gdbarch, arm_elf_make_msymbol_special);
set_gdbarch_coff_make_msymbol_special (gdbarch,
arm_coff_make_msymbol_special);
/* Hook in the ABI-specific overrides, if they have been registered. */
- gdbarch_init_osabi (info, gdbarch, osabi);
+ gdbarch_init_osabi (info, gdbarch);
/* Now we have tuned the configuration, set a few final things,
based on what the OS ABI has told us. */
case BFD_ENDIAN_LITTLE:
set_gdbarch_float_format (gdbarch, &floatformat_ieee_single_little);
- if (tdep->fp_model == ARM_FLOAT_VFP
- || tdep->fp_model == ARM_FLOAT_SOFT_VFP)
- {
- set_gdbarch_double_format (gdbarch, &floatformat_ieee_double_little);
- set_gdbarch_long_double_format (gdbarch,
- &floatformat_ieee_double_little);
- }
- else
- {
- set_gdbarch_double_format
- (gdbarch, &floatformat_ieee_double_littlebyte_bigword);
- set_gdbarch_long_double_format
- (gdbarch, &floatformat_ieee_double_littlebyte_bigword);
- }
+ arm_set_fp (gdbarch);
break;
default:
"arm_gdbarch_init: bad byte order for float format");
}
- /* We can't use SIZEOF_FRAME_SAVED_REGS here, since that still
- references the old architecture vector, not the one we are
- building here. */
- if (prologue_cache.saved_regs != NULL)
- xfree (prologue_cache.saved_regs);
-
- /* We can't use NUM_REGS nor NUM_PSEUDO_REGS here, since that still
- references the old architecture vector, not the one we are
- building here. */
- prologue_cache.saved_regs = (CORE_ADDR *)
- xcalloc (1, (sizeof (CORE_ADDR)
- * (gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch))));
-
return gdbarch;
}
if (tdep == NULL)
return;
- fprintf_unfiltered (file, "arm_dump_tdep: OS ABI = %s\n",
- gdbarch_osabi_name (tdep->osabi));
-
fprintf_unfiltered (file, "arm_dump_tdep: Lowest pc = 0x%lx",
(unsigned long) tdep->lowest_pc);
}
{
struct ui_file *stb;
long length;
- struct cmd_list_element *new_cmd;
+ struct cmd_list_element *new_set, *new_show;
const char *setname;
const char *setdesc;
const char **regnames;
arm_elf_osabi_sniffer);
/* Register some ABI variants for embedded systems. */
- gdbarch_register_osabi (bfd_arch_arm, GDB_OSABI_ARM_EABI_V1,
+ gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_ARM_EABI_V1,
arm_init_abi_eabi_v1);
- gdbarch_register_osabi (bfd_arch_arm, GDB_OSABI_ARM_EABI_V2,
+ gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_ARM_EABI_V2,
arm_init_abi_eabi_v2);
- gdbarch_register_osabi (bfd_arch_arm, GDB_OSABI_ARM_APCS,
+ gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_ARM_APCS,
arm_init_abi_apcs);
- tm_print_insn = gdb_print_insn_arm;
-
/* Get the number of possible sets of register names defined in opcodes. */
- num_flavor_options = get_arm_regname_num_options ();
+ num_disassembly_options = get_arm_regname_num_options ();
+
+ /* Add root prefix command for all "set arm"/"show arm" commands. */
+ add_prefix_cmd ("arm", no_class, set_arm_command,
+ "Various ARM-specific commands.",
+ &setarmcmdlist, "set arm ", 0, &setlist);
+
+ add_prefix_cmd ("arm", no_class, show_arm_command,
+ "Various ARM-specific commands.",
+ &showarmcmdlist, "show arm ", 0, &showlist);
/* Sync the opcode insn printer with our register viewer. */
parse_arm_disassembler_option ("reg-names-std");
/* Begin creating the help text. */
stb = mem_fileopen ();
- fprintf_unfiltered (stb, "Set the disassembly flavor.\n\
-The valid values are:\n");
+ fprintf_unfiltered (stb, "Set the disassembly style.\n"
+ "The valid values are:\n");
/* Initialize the array that will be passed to add_set_enum_cmd(). */
- valid_flavors = xmalloc ((num_flavor_options + 1) * sizeof (char *));
- for (i = 0; i < num_flavor_options; i++)
+ valid_disassembly_styles
+ = xmalloc ((num_disassembly_options + 1) * sizeof (char *));
+ for (i = 0; i < num_disassembly_options; i++)
{
numregs = get_arm_regnames (i, &setname, &setdesc, ®names);
- valid_flavors[i] = setname;
+ valid_disassembly_styles[i] = setname;
fprintf_unfiltered (stb, "%s - %s\n", setname,
setdesc);
/* Copy the default names (if found) and synchronize disassembler. */
if (!strcmp (setname, "std"))
{
- disassembly_flavor = setname;
+ disassembly_style = setname;
current_option = i;
for (j = 0; j < numregs; j++)
arm_register_names[j] = (char *) regnames[j];
}
}
/* Mark the end of valid options. */
- valid_flavors[num_flavor_options] = NULL;
+ valid_disassembly_styles[num_disassembly_options] = NULL;
/* Finish the creation of the help text. */
fprintf_unfiltered (stb, "The default is \"std\".");
helptext = ui_file_xstrdup (stb, &length);
ui_file_delete (stb);
- /* Add the disassembly-flavor command. */
- new_cmd = add_set_enum_cmd ("disassembly-flavor", no_class,
- valid_flavors,
- &disassembly_flavor,
+ /* Add the deprecated disassembly-flavor command. */
+ new_set = add_set_enum_cmd ("disassembly-flavor", no_class,
+ valid_disassembly_styles,
+ &disassembly_style,
helptext,
&setlist);
- set_cmd_sfunc (new_cmd, set_disassembly_flavor_sfunc);
- add_show_from_set (new_cmd, &showlist);
-
- /* ??? Maybe this should be a boolean. */
- add_show_from_set (add_set_cmd ("apcs32", no_class,
- var_zinteger, (char *) &arm_apcs_32,
- "Set usage of ARM 32-bit mode.\n", &setlist),
- &showlist);
+ set_cmd_sfunc (new_set, set_disassembly_style_sfunc);
+ deprecate_cmd (new_set, "set arm disassembly");
+ deprecate_cmd (add_show_from_set (new_set, &showlist),
+ "show arm disassembly");
+
+ /* And now add the new interface. */
+ new_set = add_set_enum_cmd ("disassembler", no_class,
+ valid_disassembly_styles, &disassembly_style,
+ helptext, &setarmcmdlist);
+
+ set_cmd_sfunc (new_set, set_disassembly_style_sfunc);
+ add_show_from_set (new_set, &showarmcmdlist);
+
+ add_setshow_cmd_full ("apcs32", no_class,
+ var_boolean, (char *) &arm_apcs_32,
+ "Set usage of ARM 32-bit mode.",
+ "Show usage of ARM 32-bit mode.",
+ NULL, NULL,
+ &setlist, &showlist, &new_set, &new_show);
+ deprecate_cmd (new_set, "set arm apcs32");
+ deprecate_cmd (new_show, "show arm apcs32");
+
+ add_setshow_boolean_cmd ("apcs32", no_class, &arm_apcs_32,
+ "Set usage of ARM 32-bit mode. "
+ "When off, a 26-bit PC will be used.",
+ "Show usage of ARM 32-bit mode. "
+ "When off, a 26-bit PC will be used.",
+ NULL, NULL,
+ &setarmcmdlist, &showarmcmdlist);
+
+ /* Add a command to allow the user to force the FPU model. */
+ new_set = add_set_enum_cmd
+ ("fpu", no_class, fp_model_strings, ¤t_fp_model,
+ "Set the floating point type.\n"
+ "auto - Determine the FP typefrom the OS-ABI.\n"
+ "softfpa - Software FP, mixed-endian doubles on little-endian ARMs.\n"
+ "fpa - FPA co-processor (GCC compiled).\n"
+ "softvfp - Software FP with pure-endian doubles.\n"
+ "vfp - VFP co-processor.",
+ &setarmcmdlist);
+ set_cmd_sfunc (new_set, set_fp_model_sfunc);
+ set_cmd_sfunc (add_show_from_set (new_set, &showarmcmdlist), show_fp_model);
/* Add the deprecated "othernames" command. */
-
- add_com ("othernames", class_obscure, arm_othernames,
- "Switch to the next set of register names.");
-
- /* Fill in the prologue_cache fields. */
- prologue_cache.saved_regs = NULL;
- prologue_cache.extra_info = (struct frame_extra_info *)
- xcalloc (1, sizeof (struct frame_extra_info));
+ deprecate_cmd (add_com ("othernames", class_obscure, arm_othernames,
+ "Switch to the next set of register names."),
+ "set arm disassembly");
+
+ /* Debugging flag. */
+ add_setshow_boolean_cmd ("arm", class_maintenance, &arm_debug,
+ "Set ARM debugging. "
+ "When on, arm-specific debugging is enabled.",
+ "Show ARM debugging. "
+ "When on, arm-specific debugging is enabled.",
+ NULL, NULL,
+ &setdebuglist, &showdebuglist);
}
projects / deliverable / binutils-gdb.git / blobdiff