Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#include <ctype.h> /* XXX for isupper () */
+
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "gdbcore.h"
#include "symfile.h"
#include "gdb_string.h"
-#include "coff/internal.h" /* Internal format of COFF symbols in BFD */
#include "dis-asm.h" /* For register flavors. */
-#include <ctype.h> /* for isupper () */
#include "regcache.h"
#include "doublest.h"
#include "value.h"
+#include "arch-utils.h"
#include "solib-svr4.h"
+
+#include "arm-tdep.h"
+
#include "elf-bfd.h"
#include "coff/internal.h"
+#include "elf/arm.h"
/* 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)
+/* This table matches the indicees assigned to enum arm_abi. Keep
+ them in sync. */
+
+static const char * const arm_abi_names[] =
+{
+ "<unknown>",
+ "ARM EABI (version 1)",
+ "ARM EABI (version 2)",
+ "GNU/Linux",
+ "NetBSD (a.out)",
+ "NetBSD (ELF)",
+ "APCS",
+ "FreeBSD",
+ "Windows CE",
+ NULL
+};
+
/* Number of different reg name sets (options). */
static int num_flavor_options;
/* Disassembly flavor to use. Default to "std" register names. */
static const char *disassembly_flavor;
-static int current_option; /* Index to that option in the opcodes table. */
+/* 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. */
#define MAKE_THUMB_ADDR(addr) ((addr) | 1)
#define UNMAKE_THUMB_ADDR(addr) ((addr) & ~1)
-/* Will a function return an aggregate type in memory or in a
- register? Return 0 if an aggregate type can be returned in a
- register, 1 if it must be returned in memory. */
-
-int
-arm_use_struct_convention (int gcc_p, struct type *type)
-{
- int nRc;
- register enum type_code code;
-
- /* 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.
-
- This function is based on the behaviour of GCC 2.95.1.
- See: gcc/arm.c: arm_return_in_memory() for details.
-
- Note: All versions of GCC before GCC 2.95.2 do not set up the
- parameters correctly for a function returning the following
- structure: struct { float f;}; This should be returned in memory,
- not a register. Richard Earnshaw sent me a patch, but I do not
- know of any way to detect if a function like the above has been
- compiled with the correct calling convention. */
-
- /* All aggregate types that won't fit in a register must be returned
- in memory. */
- if (TYPE_LENGTH (type) > REGISTER_SIZE)
- {
- return 1;
- }
-
- /* The only aggregate types that can be returned in a register are
- structs and unions. Arrays must be returned in memory. */
- code = TYPE_CODE (type);
- if ((TYPE_CODE_STRUCT != code) && (TYPE_CODE_UNION != code))
- {
- return 1;
- }
-
- /* Assume all other aggregate types can be returned in a register.
- Run a check for structures, unions and arrays. */
- nRc = 0;
-
- if ((TYPE_CODE_STRUCT == code) || (TYPE_CODE_UNION == code))
- {
- 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. */
-
- /* For each field in the object, check:
- 1) Is it FP? --> yes, nRc = 1;
- 2) Is it addressable (bitpos != 0) and
- not packed (bitsize == 0)?
- --> yes, nRc = 1
- */
-
- for (i = 0; i < TYPE_NFIELDS (type); i++)
- {
- enum type_code field_type_code;
- field_type_code = TYPE_CODE (TYPE_FIELD_TYPE (type, i));
-
- /* Is it a floating point type field? */
- if (field_type_code == TYPE_CODE_FLT)
- {
- nRc = 1;
- break;
- }
-
- /* If bitpos != 0, then we have to care about it. */
- if (TYPE_FIELD_BITPOS (type, i) != 0)
- {
- /* Bitfields are not addressable. If the field bitsize is
- zero, then the field is not packed. Hence it cannot be
- a bitfield or any other packed type. */
- if (TYPE_FIELD_BITSIZE (type, i) == 0)
- {
- nRc = 1;
- break;
- }
- }
- }
- }
-
- return nRc;
-}
-
-int
+static int
arm_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
{
return (chain != 0 && (FRAME_SAVED_PC (thisframe) >= LOWEST_PC));
}
/* Remove useless bits from addresses in a running program. */
-CORE_ADDR
+static CORE_ADDR
arm_addr_bits_remove (CORE_ADDR val)
{
if (arm_pc_is_thumb (val))
/* When reading symbols, we need to zap the low bit of the address,
which may be set to 1 for Thumb functions. */
-CORE_ADDR
+static CORE_ADDR
arm_smash_text_address (CORE_ADDR val)
{
return val & ~1;
}
-CORE_ADDR
+/* Immediately after a function call, return the saved pc. Can't
+ always go through the frames for this because on some machines the
+ new frame is not set up until the new function executes some
+ instructions. */
+
+static CORE_ADDR
arm_saved_pc_after_call (struct frame_info *frame)
{
- return ADDR_BITS_REMOVE (read_register (LR_REGNUM));
+ return ADDR_BITS_REMOVE (read_register (ARM_LR_REGNUM));
}
/* Determine whether the function invocation represented by FI has a
frame on the stack associated with it. If it does return zero,
otherwise return 1. */
-int
+static int
arm_frameless_function_invocation (struct frame_info *fi)
{
CORE_ADDR func_start, after_prologue;
}
/* The address of the arguments in the frame. */
-CORE_ADDR
+static CORE_ADDR
arm_frame_args_address (struct frame_info *fi)
{
return fi->frame;
}
/* The address of the local variables in the frame. */
-CORE_ADDR
+static CORE_ADDR
arm_frame_locals_address (struct frame_info *fi)
{
return fi->frame;
}
/* The number of arguments being passed in the frame. */
-int
+static int
arm_frame_num_args (struct frame_info *fi)
{
/* We have no way of knowing. */
thumb_skip_prologue (CORE_ADDR pc, CORE_ADDR func_end)
{
CORE_ADDR current_pc;
- int findmask = 0; /* findmask:
- bit 0 - push { rlist }
- bit 1 - mov r7, sp OR add r7, sp, #imm (setting of r7)
- bit 2 - sub sp, #simm OR add sp, #simm (adjusting of sp)
- */
-
- for (current_pc = pc; current_pc + 2 < func_end && current_pc < pc + 40; current_pc += 2)
+ /* findmask:
+ bit 0 - push { rlist }
+ bit 1 - mov r7, sp OR add r7, sp, #imm (setting of r7)
+ bit 2 - sub sp, #simm OR add sp, #simm (adjusting of sp)
+ */
+ int findmask = 0;
+
+ for (current_pc = pc;
+ current_pc + 2 < func_end && current_pc < pc + 40;
+ current_pc += 2)
{
unsigned short insn = read_memory_unsigned_integer (current_pc, 2);
{
findmask |= 1; /* push found */
}
- else if ((insn & 0xff00) == 0xb000) /* add sp, #simm OR sub sp, #simm */
+ else if ((insn & 0xff00) == 0xb000) /* add sp, #simm OR
+ sub sp, #simm */
{
if ((findmask & 1) == 0) /* before push ? */
continue;
}
else if (findmask == (4+2+1))
{
- break; /* We have found one of each type of prologue instruction */
+ /* We have found one of each type of prologue instruction */
+ break;
}
else
- continue; /* something in the prolog that we don't care about or some
- instruction from outside the prolog scheduled here for optimization */
+ /* something in the prolog that we don't care about or some
+ instruction from outside the prolog scheduled here for
+ optimization */
+ continue;
}
return current_pc;
}
-/* The APCS (ARM Procedure Call Standard) defines the following
+/* Advance the PC across any function entry prologue instructions to
+ reach some "real" code.
+
+ The APCS (ARM Procedure Call Standard) defines the following
prologue:
mov ip, sp
[stfe f4, [sp, #-12]!]
sub fp, ip, #nn @@ nn == 20 or 4 depending on second insn */
-CORE_ADDR
+static CORE_ADDR
arm_skip_prologue (CORE_ADDR pc)
{
unsigned long inst;
}
if ((inst & 0xfffff000) == 0xe24cb000) /* sub fp, ip, #nn */
+ {
+ skip_pc += 4;
+ inst = read_memory_integer (skip_pc, 4);
+ }
+
+ if ((inst & 0xfffff000) == 0xe24dd000) /* sub sp, sp, #nn */
skip_pc += 4;
return skip_pc;
The frame size would thus be 36 bytes, and the frame offset would be
12 bytes. The frame register is R7.
- The comments for thumb_skip_prolog() describe the algorithm we use to detect
- the end of the prolog */
+ The comments for thumb_skip_prolog() describe the algorithm we use
+ to detect the end of the prolog. */
/* *INDENT-ON* */
static void
CORE_ADDR prologue_start;
CORE_ADDR prologue_end;
CORE_ADDR current_pc;
- int saved_reg[16]; /* which register has been copied to register n? */
- int findmask = 0; /* findmask:
- bit 0 - push { rlist }
- bit 1 - mov r7, sp OR add r7, sp, #imm (setting of r7)
- bit 2 - sub sp, #simm OR add sp, #simm (adjusting of sp)
- */
+ /* Which register has been copied to register n? */
+ int saved_reg[16];
+ /* findmask:
+ bit 0 - push { rlist }
+ bit 1 - mov r7, sp OR add r7, sp, #imm (setting of r7)
+ bit 2 - sub sp, #simm OR add sp, #simm (adjusting of sp)
+ */
+ int findmask = 0;
int i;
if (find_pc_partial_function (fi->pc, NULL, &prologue_start, &prologue_end))
prologue_end = sal.end; /* (probably means no prologue) */
}
else
- prologue_end = prologue_start + 40; /* We're in the boondocks: allow for */
- /* 16 pushes, an add, and "mv fp,sp" */
+ /* We're in the boondocks: allow for
+ 16 pushes, an add, and "mv fp,sp". */
+ prologue_end = prologue_start + 40;
prologue_end = min (prologue_end, fi->pc);
mask = (insn & 0xff) | ((insn & 0x100) << 6);
/* Calculate offsets of saved R0-R7 and LR. */
- for (regno = LR_REGNUM; regno >= 0; regno--)
+ 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);
- saved_reg[regno] = regno; /* reset saved register map */
+ /* Reset saved register map. */
+ saved_reg[regno] = regno;
}
}
- else if ((insn & 0xff00) == 0xb000) /* add sp, #simm OR sub sp, #simm */
+ else if ((insn & 0xff00) == 0xb000) /* add sp, #simm OR
+ sub sp, #simm */
{
if ((findmask & 1) == 0) /* before push ? */
continue;
findmask |= 2; /* setting of r7 found */
fi->extra_info->framereg = THUMB_FP_REGNUM;
fi->extra_info->frameoffset = 0;
- saved_reg[THUMB_FP_REGNUM] = SP_REGNUM;
+ saved_reg[THUMB_FP_REGNUM] = ARM_SP_REGNUM;
}
else if ((insn & 0xffc0) == 0x4640) /* mov r0-r7, r8-r15 */
{
- int lo_reg = insn & 7; /* dest. register (r0-r7) */
+ int lo_reg = insn & 7; /* dest. register (r0-r7) */
int hi_reg = ((insn >> 3) & 7) + 8; /* source register (r8-15) */
saved_reg[lo_reg] = hi_reg; /* remember hi reg was saved */
}
else
- continue; /* something in the prolog that we don't care about or some
- instruction from outside the prolog scheduled here for optimization */
+ /* Something in the prolog that we don't care about or some
+ instruction from outside the prolog scheduled here for
+ optimization. */
+ continue;
}
}
return;
/* Assume there is no frame until proven otherwise. */
- fi->extra_info->framereg = SP_REGNUM;
+ fi->extra_info->framereg = ARM_SP_REGNUM;
fi->extra_info->framesize = 0;
fi->extra_info->frameoffset = 0;
int mask = insn & 0xffff;
/* Calculate offsets of saved registers. */
- for (regno = PC_REGNUM; regno >= 0; regno--)
+ for (regno = ARM_PC_REGNUM; regno >= 0; regno--)
if (mask & (1 << regno))
{
sp_offset -= 4;
unsigned rot = (insn & 0xf00) >> 7; /* rotate amount */
imm = (imm >> rot) | (imm << (32 - rot));
fp_offset = -imm;
- fi->extra_info->framereg = FP_REGNUM;
+ fi->extra_info->framereg = ARM_FP_REGNUM;
}
else if ((insn & 0xfffff000) == 0xe24dd000) /* sub sp, sp #n */
{
else if ((insn & 0xffff7fff) == 0xed6d0103) /* stfe f?, [sp, -#c]! */
{
sp_offset -= 12;
- regno = F0_REGNUM + ((insn >> 12) & 0x07);
+ regno = ARM_F0_REGNUM + ((insn >> 12) & 0x07);
fi->saved_regs[regno] = sp_offset;
}
else if ((insn & 0xffbf0fff) == 0xec2d0200) /* sfmfd f0, 4, [sp!] */
n_saved_fp_regs = 4;
}
- fp_start_reg = F0_REGNUM + ((insn >> 12) & 0x7);
+ fp_start_reg = ARM_F0_REGNUM + ((insn >> 12) & 0x7);
fp_bound_reg = fp_start_reg + n_saved_fp_regs;
for (; fp_start_reg < fp_bound_reg; fp_start_reg++)
{
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 == FP_REGNUM)
+ if (fi->extra_info->framereg == ARM_FP_REGNUM)
fi->extra_info->frameoffset = fp_offset - sp_offset;
else
fi->extra_info->frameoffset = 0;
{
for (; fi; fi = fi->next)
-#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
+#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
return generic_read_register_dummy (fi->pc, fi->frame, regnum);
else
REGISTER_RAW_SIZE (regnum));
return read_register (regnum);
}
-/* *INDENT-OFF* */
-/* 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.
-
- The original definition of this function was a macro in tm-arm.h:
- { In the case of the ARM, the frame's nominal address is the FP value,
- and 12 bytes before comes the saved previous FP value as a 4-byte word. }
-
- #define FRAME_CHAIN(thisframe) \
- ((thisframe)->pc >= LOWEST_PC ? \
- read_memory_integer ((thisframe)->frame - 12, 4) :\
- 0)
-*/
-/* *INDENT-ON* */
+/* 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. */
-CORE_ADDR
+static CORE_ADDR
arm_frame_chain (struct frame_info *fi)
{
-#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
+#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
CORE_ADDR fn_start, callers_pc, fp;
/* is this a dummy frame? */
/* is caller-of-this a dummy frame? */
callers_pc = FRAME_SAVED_PC (fi); /* find out who called us: */
- fp = arm_find_callers_reg (fi, FP_REGNUM);
+ fp = arm_find_callers_reg (fi, ARM_FP_REGNUM);
if (PC_IN_CALL_DUMMY (callers_pc, fp, fp))
return fp; /* dummy frame's frame may bear no relation to ours */
/* If the caller used a frame register, return its value.
Otherwise, return the caller's stack pointer. */
- if (framereg == FP_REGNUM || framereg == THUMB_FP_REGNUM)
+ if (framereg == ARM_FP_REGNUM || framereg == THUMB_FP_REGNUM)
return arm_find_callers_reg (fi, framereg);
else
return fi->frame + fi->extra_info->framesize;
this is true, then the frame value for this frame is still in the
fp register. */
-void
+static void
arm_init_extra_frame_info (int fromleaf, struct frame_info *fi)
{
int reg;
memset (fi->saved_regs, '\000', sizeof fi->saved_regs);
-#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
+#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
{
- /* We need to setup fi->frame here because run_stack_dummy gets it wrong
- by assuming it's always FP. */
- fi->frame = generic_read_register_dummy (fi->pc, fi->frame, SP_REGNUM);
+ /* We need to setup fi->frame here because run_stack_dummy gets
+ it wrong by assuming it's always FP. */
+ fi->frame = generic_read_register_dummy (fi->pc, fi->frame,
+ ARM_SP_REGNUM);
fi->extra_info->framesize = 0;
fi->extra_info->frameoffset = 0;
return;
else
#endif
- /* Compute stack pointer for this frame. We use this value for both the
- sigtramp and call dummy cases. */
+ /* Compute stack pointer for this frame. We use this value for both
+ the sigtramp and call dummy cases. */
if (!fi->next)
sp = read_sp();
else
sp = (fi->next->frame - fi->next->extra_info->frameoffset
+ fi->next->extra_info->framesize);
- /* Determine whether or not we're in a sigtramp frame.
+ /* 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 IN_SIGTRAMP to determine if we need
- to use the sigcontext addresses for the saved registers.
+ fi->signal_handler_caller and PC_IN_SIGTRAMP to determine if we
+ need to use the sigcontext addresses for the saved registers.
- Note: If an ARM 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 IN_SIGTRAMP. */
+ 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. */
if (SIGCONTEXT_REGISTER_ADDRESS_P ()
- && (fi->signal_handler_caller || IN_SIGTRAMP (fi->pc, (char *)0)))
+ && (fi->signal_handler_caller || PC_IN_SIGTRAMP (fi->pc, (char *)0)))
{
for (reg = 0; reg < NUM_REGS; reg++)
fi->saved_regs[reg] = SIGCONTEXT_REGISTER_ADDRESS (sp, fi->pc, reg);
/* FIXME: What about thumb mode? */
- fi->extra_info->framereg = SP_REGNUM;
+ 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));
rp = fi->frame - REGISTER_SIZE;
/* Fill in addresses of saved registers. */
- fi->saved_regs[PS_REGNUM] = rp;
- rp -= REGISTER_RAW_SIZE (PS_REGNUM);
- for (reg = PC_REGNUM; reg >= 0; reg--)
+ 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[SP_REGNUM],
- REGISTER_RAW_SIZE (SP_REGNUM));
- fi->extra_info->framereg = FP_REGNUM;
+ 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;
}
if (!fi->next)
/* this is the innermost frame? */
fi->frame = read_register (fi->extra_info->framereg);
- else if (fi->extra_info->framereg == FP_REGNUM
+ else if (fi->extra_info->framereg == ARM_FP_REGNUM
|| fi->extra_info->framereg == THUMB_FP_REGNUM)
{
/* not the innermost frame */
}
-/* Find the caller of this frame. We do this by seeing if LR_REGNUM
+/* Find the caller of this frame. We do this by seeing if ARM_LR_REGNUM
is saved in the stack anywhere, otherwise we get it from the
registers.
#define FRAME_SAVED_PC(FRAME) \
ADDR_BITS_REMOVE (read_memory_integer ((FRAME)->frame - 4, 4)) */
-CORE_ADDR
+static CORE_ADDR
arm_frame_saved_pc (struct frame_info *fi)
{
-#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
+#if 0 /* FIXME: enable this code if we convert to new call dummy scheme. */
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
- return generic_read_register_dummy (fi->pc, fi->frame, PC_REGNUM);
+ return generic_read_register_dummy (fi->pc, fi->frame, ARM_PC_REGNUM);
else
#endif
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame - fi->extra_info->frameoffset,
fi->frame))
{
- return read_memory_integer (fi->saved_regs[PC_REGNUM],
- REGISTER_RAW_SIZE (PC_REGNUM));
+ return read_memory_integer (fi->saved_regs[ARM_PC_REGNUM],
+ REGISTER_RAW_SIZE (ARM_PC_REGNUM));
}
else
{
- CORE_ADDR pc = arm_find_callers_reg (fi, LR_REGNUM);
+ CORE_ADDR pc = arm_find_callers_reg (fi, ARM_LR_REGNUM);
return IS_THUMB_ADDR (pc) ? UNMAKE_THUMB_ADDR (pc) : pc;
}
}
/* Return the frame address. On ARM, it is R11; on Thumb it is R7.
Examine the Program Status Register to decide which state we're in. */
-CORE_ADDR
-arm_target_read_fp (void)
+static CORE_ADDR
+arm_read_fp (void)
{
- if (read_register (PS_REGNUM) & 0x20) /* Bit 5 is Thumb state bit */
+ if (read_register (ARM_PS_REGNUM) & 0x20) /* Bit 5 is Thumb state bit */
return read_register (THUMB_FP_REGNUM); /* R7 if Thumb */
else
- return read_register (FP_REGNUM); /* R11 if ARM */
+ return read_register (ARM_FP_REGNUM); /* R11 if ARM */
}
-/* Calculate the frame offsets of the saved registers (ARM version). */
+/* Store into a struct frame_saved_regs the addresses of the saved
+ registers of frame described by FRAME_INFO. This includes special
+ registers such as PC and FP saved in special ways in the stack
+ frame. SP is even more special: the address we return for it IS
+ the sp for the next frame. */
-void
+static void
arm_frame_init_saved_regs (struct frame_info *fip)
{
arm_init_extra_frame_info (0, fip);
}
-void
+/* Push an empty stack frame, to record the current PC, etc. */
+
+static void
arm_push_dummy_frame (void)
{
- CORE_ADDR old_sp = read_register (SP_REGNUM);
+ CORE_ADDR old_sp = read_register (ARM_SP_REGNUM);
CORE_ADDR sp = old_sp;
CORE_ADDR fp, prologue_start;
int regnum;
fp = sp = push_word (sp, prologue_start + 12);
/* Push the processor status. */
- sp = push_word (sp, read_register (PS_REGNUM));
+ sp = push_word (sp, read_register (ARM_PS_REGNUM));
/* Push all 16 registers starting with r15. */
- for (regnum = PC_REGNUM; regnum >= 0; regnum--)
+ for (regnum = ARM_PC_REGNUM; regnum >= 0; regnum--)
sp = push_word (sp, read_register (regnum));
/* Update fp (for both Thumb and ARM) and sp. */
- write_register (FP_REGNUM, fp);
+ write_register (ARM_FP_REGNUM, fp);
write_register (THUMB_FP_REGNUM, fp);
- write_register (SP_REGNUM, sp);
+ write_register (ARM_SP_REGNUM, sp);
}
/* CALL_DUMMY_WORDS:
Note this is 12 bytes. */
-LONGEST arm_call_dummy_words[] =
+static LONGEST arm_call_dummy_words[] =
{
0xe1a0e00f, 0xe1a0f004, 0xe7ffdefe
};
+/* Adjust the call_dummy_breakpoint_offset for the bp_call_dummy
+ breakpoint to the proper address in the call dummy, so that
+ `finish' after a stop in a call dummy works.
+
+ 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. */
+
+
+static void
+arm_set_call_dummy_breakpoint_offset (void)
+{
+ if (caller_is_thumb)
+ set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 4);
+ else
+ set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 8);
+}
+
/* Fix up the call dummy, based on whether the processor is currently
in Thumb or ARM mode, and whether the target function is Thumb or
ARM. There are three different situations requiring three
All three call dummies expect to receive the target function
address in R4, with the low bit set if it's a Thumb function. */
-void
+static void
arm_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
struct value **args, struct type *type, int gcc_p)
{
/* Set flag indicating whether the current PC is in a Thumb function. */
caller_is_thumb = arm_pc_is_thumb (read_pc ());
+ arm_set_call_dummy_breakpoint_offset ();
/* If the target function is Thumb, set the low bit of the function
address. And if the CPU is currently in ARM mode, patch the
write_register (4, fun);
}
-/* Return the offset in the call dummy of the instruction that needs
- to have a breakpoint placed on it. This is the offset of the 'swi
- 24' instruction, which is no longer actually used, but simply acts
- as a place-holder now.
-
- This implements the CALL_DUMMY_BREAK_OFFSET macro. */
-
-int
-arm_call_dummy_breakpoint_offset (void)
-{
- if (caller_is_thumb)
- return 4;
- else
- return 8;
-}
-
/* Note: ScottB
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. */
-CORE_ADDR
+static CORE_ADDR
arm_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
arg_type = check_typedef (VALUE_TYPE (args[argnum]));
len = TYPE_LENGTH (arg_type);
- /* ANSI C code passes float arguments as integers, K&R code
- passes float arguments as doubles. Correct for this here. */
- if (TYPE_CODE_FLT == TYPE_CODE (arg_type) && REGISTER_SIZE == len)
- nstack_size += FP_REGISTER_VIRTUAL_SIZE;
- else
- nstack_size += len;
+ nstack_size += len;
}
/* Allocate room on the stack, and initialize our stack frame
}
/* Initialize the integer argument register pointer. */
- argreg = A1_REGNUM;
+ argreg = ARM_A1_REGNUM;
/* The struct_return pointer occupies the first parameter passing
register. */
typecode = TYPE_CODE (arg_type);
val = (char *) VALUE_CONTENTS (args[argnum]);
- /* ANSI C code passes float arguments as integers, K&R code
- passes float arguments as doubles. The .stabs record for
- for ANSI prototype floating point arguments records the
- type as FP_INTEGER, while a K&R style (no prototype)
- .stabs records the type as FP_FLOAT. In this latter case
- the compiler converts the float arguments to double before
- calling the function. */
- if (TYPE_CODE_FLT == typecode && REGISTER_SIZE == len)
- {
- DOUBLEST dblval;
- dblval = extract_floating (val, len);
- len = TARGET_DOUBLE_BIT / TARGET_CHAR_BIT;
- val = alloca (len);
- store_floating (val, len, dblval);
- }
#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
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. */
-void
+/* 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;
read_memory_integer (frame->saved_regs[regnum],
REGISTER_RAW_SIZE (regnum)));
- write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
- write_register (SP_REGNUM, old_SP);
+ write_register (ARM_PC_REGNUM, FRAME_SAVED_PC (frame));
+ write_register (ARM_SP_REGNUM, old_SP);
flush_cached_frames ();
}
/* Print interesting information about the floating point processor
(if present) or emulator. */
-void
+static void
arm_print_float_info (void)
{
- register unsigned long status = read_register (FPS_REGNUM);
+ register unsigned long status = read_register (ARM_FPS_REGNUM);
int type;
type = (status >> 24) & 127;
print_fpu_flags (status);
}
-struct type *
+/* Return the GDB type object for the "standard" data type of data in
+ register N. */
+
+static struct type *
arm_register_type (int regnum)
{
- if (regnum >= F0_REGNUM && regnum < F0_REGNUM + NUM_FREGS)
+ if (regnum >= ARM_F0_REGNUM && regnum < ARM_F0_REGNUM + NUM_FREGS)
{
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
return builtin_type_arm_ext_big;
return builtin_type_int32;
}
+/* Index within `registers' of the first byte of the space for
+ register N. */
+
+static int
+arm_register_byte (int regnum)
+{
+ if (regnum < ARM_F0_REGNUM)
+ return regnum * INT_REGISTER_RAW_SIZE;
+ else if (regnum < ARM_PS_REGNUM)
+ return (NUM_GREGS * INT_REGISTER_RAW_SIZE
+ + (regnum - ARM_F0_REGNUM) * FP_REGISTER_RAW_SIZE);
+ else
+ return (NUM_GREGS * INT_REGISTER_RAW_SIZE
+ + NUM_FREGS * FP_REGISTER_RAW_SIZE
+ + (regnum - ARM_FPS_REGNUM) * STATUS_REGISTER_SIZE);
+}
+
+/* Number of bytes of storage in the actual machine representation for
+ register N. All registers are 4 bytes, except fp0 - fp7, which are
+ 12 bytes in length. */
+
+static int
+arm_register_raw_size (int regnum)
+{
+ if (regnum < ARM_F0_REGNUM)
+ return INT_REGISTER_RAW_SIZE;
+ else if (regnum < ARM_FPS_REGNUM)
+ return FP_REGISTER_RAW_SIZE;
+ else
+ return STATUS_REGISTER_SIZE;
+}
+
+/* Number of bytes of storage in a program's representation
+ for register N. */
+static int
+arm_register_virtual_size (int regnum)
+{
+ if (regnum < ARM_F0_REGNUM)
+ return INT_REGISTER_VIRTUAL_SIZE;
+ else if (regnum < ARM_FPS_REGNUM)
+ return FP_REGISTER_VIRTUAL_SIZE;
+ else
+ return STATUS_REGISTER_SIZE;
+}
+
+
/* NOTE: cagney/2001-08-20: Both convert_from_extended() and
convert_to_extended() use floatformat_arm_ext_littlebyte_bigword.
It is thought that this is is the floating-point register format on
floatformat_from_doublest (TARGET_DOUBLE_FORMAT, &d, dbl);
}
-void
+static void
convert_to_extended (void *dbl, void *ptr)
{
DOUBLEST d;
return nbits;
}
-static CORE_ADDR
+CORE_ADDR
thumb_get_next_pc (CORE_ADDR pc)
{
unsigned long pc_val = ((unsigned long) pc) + 4; /* PC after prefetch */
/* Fetch the saved PC from the stack. It's stored above
all of the other registers. */
offset = bitcount (bits (inst1, 0, 7)) * REGISTER_SIZE;
- sp = read_register (SP_REGNUM);
+ sp = read_register (ARM_SP_REGNUM);
nextpc = (CORE_ADDR) read_memory_integer (sp + offset, 4);
nextpc = ADDR_BITS_REMOVE (nextpc);
if (nextpc == pc)
}
else if ((inst1 & 0xf000) == 0xd000) /* conditional branch */
{
- unsigned long status = read_register (PS_REGNUM);
+ unsigned long status = read_register (ARM_PS_REGNUM);
unsigned long cond = bits (inst1, 8, 11);
if (cond != 0x0f && condition_true (cond, status)) /* 0x0f = SWI */
nextpc = pc_val + (sbits (inst1, 0, 7) << 1);
pc_val = (unsigned long) pc;
this_instr = read_memory_integer (pc, 4);
- status = read_register (PS_REGNUM);
+ status = read_register (ARM_PS_REGNUM);
nextpc = (CORE_ADDR) (pc_val + 4); /* Default case */
if (condition_true (bits (this_instr, 28, 31), status))
break;
default:
- fprintf (stderr, "Bad bit-field extraction\n");
+ fprintf_filtered (gdb_stderr, "Bad bit-field extraction\n");
return (pc);
}
}
single_step is also called just after the inferior stops. If we had
set up a simulated single-step, we undo our damage. */
-void
-arm_software_single_step (int ignore, int insert_bpt)
+static void
+arm_software_single_step (enum target_signal sig, int insert_bpt)
{
static int next_pc; /* State between setting and unsetting. */
static char break_mem[BREAKPOINT_MAX]; /* Temporary storage for mem@bpt */
if (insert_bpt)
{
- next_pc = arm_get_next_pc (read_register (PC_REGNUM));
+ next_pc = arm_get_next_pc (read_register (ARM_PC_REGNUM));
target_insert_breakpoint (next_pc, break_mem);
}
else
if (csym.native == NULL)
{
- /* Create a fake symbol vector containing a Thumb symbol. This is
- solely so that the code in print_insn_little_arm() and
- print_insn_big_arm() in opcodes/arm-dis.c will detect the presence
- of a Thumb symbol and switch to decoding Thumb instructions. */
+ /* Create a fake symbol vector containing a Thumb symbol.
+ This is solely so that the code in print_insn_little_arm()
+ and print_insn_big_arm() in opcodes/arm-dis.c will detect
+ the presence of a Thumb symbol and switch to decoding
+ Thumb instructions. */
fake_target.flavour = bfd_target_coff_flavour;
fake_bfd.xvec = &fake_target;
return print_insn_little_arm (memaddr, info);
}
-/* This function implements the BREAKPOINT_FROM_PC macro. It uses the
- program counter value to determine whether a 16-bit or 32-bit
+/* The following define instruction sequences that will cause ARM
+ cpu's to take an undefined instruction trap. These are used to
+ signal a breakpoint to GDB.
+
+ The newer ARMv4T cpu's are capable of operating in ARM or Thumb
+ modes. A different instruction is required for each mode. The ARM
+ cpu's can also be big or little endian. Thus four different
+ instructions are needed to support all cases.
+
+ Note: ARMv4 defines several new instructions that will take the
+ undefined instruction trap. ARM7TDMI is nominally ARMv4T, but does
+ not in fact add the new instructions. The new undefined
+ instructions in ARMv4 are all instructions that had no defined
+ behaviour in earlier chips. There is no guarantee that they will
+ raise an exception, but may be treated as NOP's. In practice, it
+ may only safe to rely on instructions matching:
+
+ 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+ 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ C C C C 0 1 1 x x x x x x x x x x x x x x x x x x x x 1 x x x x
+
+ Even this may only true if the condition predicate is true. The
+ following use a condition predicate of ALWAYS so it is always TRUE.
+
+ There are other ways of forcing a breakpoint. GNU/Linux, RISC iX,
+ and NetBSD all use a software interrupt rather than an undefined
+ instruction to force a trap. This can be handled by by the
+ abi-specific code during establishment of the gdbarch vector. */
+
+
+/* NOTE rearnsha 2002-02-18: for now we allow a non-multi-arch gdb to
+ override these definitions. */
+#ifndef ARM_LE_BREAKPOINT
+#define ARM_LE_BREAKPOINT {0xFE,0xDE,0xFF,0xE7}
+#endif
+#ifndef ARM_BE_BREAKPOINT
+#define ARM_BE_BREAKPOINT {0xE7,0xFF,0xDE,0xFE}
+#endif
+#ifndef THUMB_LE_BREAKPOINT
+#define THUMB_LE_BREAKPOINT {0xfe,0xdf}
+#endif
+#ifndef THUMB_BE_BREAKPOINT
+#define THUMB_BE_BREAKPOINT {0xdf,0xfe}
+#endif
+
+static const char arm_default_arm_le_breakpoint[] = ARM_LE_BREAKPOINT;
+static const char arm_default_arm_be_breakpoint[] = ARM_BE_BREAKPOINT;
+static const char arm_default_thumb_le_breakpoint[] = THUMB_LE_BREAKPOINT;
+static const char arm_default_thumb_be_breakpoint[] = THUMB_BE_BREAKPOINT;
+
+/* Determine the type and size of breakpoint to insert at PCPTR. Uses
+ the program counter value to determine whether a 16-bit or 32-bit
breakpoint should be used. It returns a pointer to a string of
bytes that encode a breakpoint instruction, stores the length of
the string to *lenptr, and adjusts the program counter (if
necessary) to point to the actual memory location where the
breakpoint should be inserted. */
-unsigned char *
+/* XXX ??? from old tm-arm.h: if we're using RDP, then we're inserting
+ breakpoints and storing their handles instread of what was in
+ memory. It is nice that this is the same size as a handle -
+ otherwise remote-rdp will have to change. */
+
+static const unsigned char *
arm_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
if (arm_pc_is_thumb (*pcptr) || arm_pc_is_thumb_dummy (*pcptr))
{
- if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
- {
- static char thumb_breakpoint[] = THUMB_BE_BREAKPOINT;
- *pcptr = UNMAKE_THUMB_ADDR (*pcptr);
- *lenptr = sizeof (thumb_breakpoint);
- return thumb_breakpoint;
- }
- else
- {
- static char thumb_breakpoint[] = THUMB_LE_BREAKPOINT;
- *pcptr = UNMAKE_THUMB_ADDR (*pcptr);
- *lenptr = sizeof (thumb_breakpoint);
- return thumb_breakpoint;
- }
+ *pcptr = UNMAKE_THUMB_ADDR (*pcptr);
+ *lenptr = tdep->thumb_breakpoint_size;
+ return tdep->thumb_breakpoint;
}
else
{
- if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
- {
- static char arm_breakpoint[] = ARM_BE_BREAKPOINT;
- *lenptr = sizeof (arm_breakpoint);
- return arm_breakpoint;
- }
- else
- {
- static char arm_breakpoint[] = ARM_LE_BREAKPOINT;
- *lenptr = sizeof (arm_breakpoint);
- return arm_breakpoint;
- }
+ *lenptr = tdep->arm_breakpoint_size;
+ return tdep->arm_breakpoint;
}
}
function return value of type TYPE, and copy that, in virtual
format, into VALBUF. */
-void
+static void
arm_extract_return_value (struct type *type,
char regbuf[REGISTER_BYTES],
char *valbuf)
{
if (TYPE_CODE_FLT == TYPE_CODE (type))
- convert_from_extended (®buf[REGISTER_BYTE (F0_REGNUM)], valbuf);
+ {
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ switch (tdep->fp_model)
+ {
+ case ARM_FLOAT_FPA:
+ convert_from_extended (®buf[REGISTER_BYTE (ARM_F0_REGNUM)],
+ valbuf);
+ break;
+
+ case ARM_FLOAT_SOFT:
+ case ARM_FLOAT_SOFT_VFP:
+ memcpy (valbuf, ®buf[REGISTER_BYTE (ARM_A1_REGNUM)],
+ TYPE_LENGTH (type));
+ break;
+
+ default:
+ internal_error
+ (__FILE__, __LINE__,
+ "arm_extract_return_value: Floating point model not supported");
+ break;
+ }
+ }
else
- memcpy (valbuf, ®buf[REGISTER_BYTE (A1_REGNUM)], TYPE_LENGTH (type));
+ memcpy (valbuf, ®buf[REGISTER_BYTE (ARM_A1_REGNUM)],
+ TYPE_LENGTH (type));
}
-/* Return non-zero if the PC is inside a thumb call thunk. */
+/* Extract from an array REGBUF containing the (raw) register state
+ the address in which a function should return its structure value. */
-int
-arm_in_call_stub (CORE_ADDR pc, char *name)
+static CORE_ADDR
+arm_extract_struct_value_address (char *regbuf)
{
- CORE_ADDR start_addr;
-
- /* Find the starting address of the function containing the PC. If
- the caller didn't give us a name, look it up at the same time. */
- if (find_pc_partial_function (pc, name ? NULL : &name, &start_addr, NULL) == 0)
- return 0;
-
- return strncmp (name, "_call_via_r", 11) == 0;
+ return extract_address (regbuf, REGISTER_RAW_SIZE(ARM_A1_REGNUM));
}
-/* If PC is in a Thumb call or return stub, return the address of the
- target PC, which is in a register. The thunk functions are called
- _called_via_xx, where x is the register name. The possible names
- are r0-r9, sl, fp, ip, sp, and lr. */
-
+/* Will a function return an aggregate type in memory or in a
+ register? Return 0 if an aggregate type can be returned in a
+ register, 1 if it must be returned in memory. */
+
+static int
+arm_use_struct_convention (int gcc_p, struct type *type)
+{
+ int nRc;
+ register enum type_code code;
+
+ /* 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.
+
+ This function is based on the behaviour of GCC 2.95.1.
+ See: gcc/arm.c: arm_return_in_memory() for details.
+
+ Note: All versions of GCC before GCC 2.95.2 do not set up the
+ parameters correctly for a function returning the following
+ structure: struct { float f;}; This should be returned in memory,
+ not a register. Richard Earnshaw sent me a patch, but I do not
+ know of any way to detect if a function like the above has been
+ compiled with the correct calling convention. */
+
+ /* All aggregate types that won't fit in a register must be returned
+ in memory. */
+ if (TYPE_LENGTH (type) > REGISTER_SIZE)
+ {
+ return 1;
+ }
+
+ /* The only aggregate types that can be returned in a register are
+ structs and unions. Arrays must be returned in memory. */
+ code = TYPE_CODE (type);
+ if ((TYPE_CODE_STRUCT != code) && (TYPE_CODE_UNION != code))
+ {
+ return 1;
+ }
+
+ /* Assume all other aggregate types can be returned in a register.
+ Run a check for structures, unions and arrays. */
+ nRc = 0;
+
+ if ((TYPE_CODE_STRUCT == code) || (TYPE_CODE_UNION == code))
+ {
+ 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. */
+
+ /* For each field in the object, check:
+ 1) Is it FP? --> yes, nRc = 1;
+ 2) Is it addressable (bitpos != 0) and
+ not packed (bitsize == 0)?
+ --> yes, nRc = 1
+ */
+
+ for (i = 0; i < TYPE_NFIELDS (type); i++)
+ {
+ enum type_code field_type_code;
+ field_type_code = TYPE_CODE (TYPE_FIELD_TYPE (type, i));
+
+ /* Is it a floating point type field? */
+ if (field_type_code == TYPE_CODE_FLT)
+ {
+ nRc = 1;
+ break;
+ }
+
+ /* If bitpos != 0, then we have to care about it. */
+ if (TYPE_FIELD_BITPOS (type, i) != 0)
+ {
+ /* Bitfields are not addressable. If the field bitsize is
+ zero, then the field is not packed. Hence it cannot be
+ a bitfield or any other packed type. */
+ if (TYPE_FIELD_BITSIZE (type, i) == 0)
+ {
+ nRc = 1;
+ break;
+ }
+ }
+ }
+ }
+
+ return nRc;
+}
+
+/* Write into appropriate registers a function return value of type
+ TYPE, given in virtual format. */
+
+static void
+arm_store_return_value (struct type *type, char *valbuf)
+{
+ if (TYPE_CODE (type) == TYPE_CODE_FLT)
+ {
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ char buf[MAX_REGISTER_RAW_SIZE];
+
+ switch (tdep->fp_model)
+ {
+ case ARM_FLOAT_FPA:
+
+ convert_to_extended (valbuf, buf);
+ write_register_bytes (REGISTER_BYTE (ARM_F0_REGNUM), buf,
+ MAX_REGISTER_RAW_SIZE);
+ break;
+
+ case ARM_FLOAT_SOFT:
+ case ARM_FLOAT_SOFT_VFP:
+ write_register_bytes (ARM_A1_REGNUM, valbuf, TYPE_LENGTH (type));
+ break;
+
+ default:
+ internal_error
+ (__FILE__, __LINE__,
+ "arm_store_return_value: Floating point model not supported");
+ break;
+ }
+ }
+ else
+ write_register_bytes (ARM_A1_REGNUM, valbuf, TYPE_LENGTH (type));
+}
+
+/* Store the address of the place in which to copy the structure the
+ subroutine will return. This is called from call_function. */
+
+static void
+arm_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
+{
+ write_register (ARM_A1_REGNUM, addr);
+}
+
+static int
+arm_get_longjmp_target (CORE_ADDR *pc)
+{
+ CORE_ADDR jb_addr;
+ char buf[INT_REGISTER_RAW_SIZE];
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ jb_addr = read_register (ARM_A1_REGNUM);
+
+ if (target_read_memory (jb_addr + tdep->jb_pc * tdep->jb_elt_size, buf,
+ INT_REGISTER_RAW_SIZE))
+ return 0;
+
+ *pc = extract_address (buf, INT_REGISTER_RAW_SIZE);
+ return 1;
+}
+
+/* Return non-zero if the PC is inside a thumb call thunk. */
+
+int
+arm_in_call_stub (CORE_ADDR pc, char *name)
+{
+ CORE_ADDR start_addr;
+
+ /* Find the starting address of the function containing the PC. If
+ the caller didn't give us a name, look it up at the same time. */
+ if (find_pc_partial_function (pc, name ? NULL : &name, &start_addr, NULL) == 0)
+ return 0;
+
+ return strncmp (name, "_call_via_r", 11) == 0;
+}
+
+/* If PC is in a Thumb call or return stub, return the address of the
+ target PC, which is in a register. The thunk functions are called
+ _called_via_xx, where x is the register name. The possible names
+ are r0-r9, sl, fp, ip, sp, and lr. */
+
CORE_ADDR
arm_skip_stub (CORE_ADDR pc)
{
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. */
+/* 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_disassembly_flavor_sfunc (char *args, int from_tty,
}
\f
/* Return the ARM register name corresponding to register I. */
-char *
-arm_register_name(int i)
+static char *
+arm_register_name (int i)
{
return arm_register_names[i];
}
arm_register_names[j] = (char *) regnames[j];
/* Adjust case. */
- if (isupper (*regnames[PC_REGNUM]))
+ if (isupper (*regnames[ARM_PC_REGNUM]))
{
- arm_register_names[FPS_REGNUM] = "FPS";
- arm_register_names[PS_REGNUM] = "CPSR";
+ arm_register_names[ARM_FPS_REGNUM] = "FPS";
+ arm_register_names[ARM_PS_REGNUM] = "CPSR";
}
else
{
- arm_register_names[FPS_REGNUM] = "fps";
- arm_register_names[PS_REGNUM] = "cpsr";
+ arm_register_names[ARM_FPS_REGNUM] = "fps";
+ arm_register_names[ARM_PS_REGNUM] = "cpsr";
}
/* Synchronize the disassembler. */
an address in thumb code, and set a "special" bit in a minimal
symbol to indicate that it does. */
-void
+static void
arm_elf_make_msymbol_special(asymbol *sym, struct minimal_symbol *msym)
{
/* Thumb symbols are of type STT_LOPROC, (synonymous with
MSYMBOL_SET_SPECIAL (msym);
}
-void
+static void
arm_coff_make_msymbol_special(int val, struct minimal_symbol *msym)
{
if (coff_sym_is_thumb (val))
MSYMBOL_SET_SPECIAL (msym);
}
+\f
+static void
+process_note_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
+{
+ enum arm_abi *os_ident_ptr = obj;
+ const char *name;
+ unsigned int sectsize;
+
+ name = bfd_get_section_name (abfd, sect);
+ sectsize = bfd_section_size (abfd, sect);
+
+ if (strcmp (name, ".note.ABI-tag") == 0 && sectsize > 0)
+ {
+ unsigned int name_length, data_length, note_type;
+ char *note;
+
+ /* If the section is larger than this, it's probably not what we are
+ looking for. */
+ if (sectsize > 128)
+ sectsize = 128;
+
+ note = alloca (sectsize);
+
+ bfd_get_section_contents (abfd, sect, note,
+ (file_ptr) 0, (bfd_size_type) sectsize);
+
+ name_length = bfd_h_get_32 (abfd, note);
+ data_length = bfd_h_get_32 (abfd, note + 4);
+ note_type = bfd_h_get_32 (abfd, note + 8);
+
+ if (name_length == 4 && data_length == 16 && note_type == 1
+ && strcmp (note + 12, "GNU") == 0)
+ {
+ int os_number = bfd_h_get_32 (abfd, note + 16);
+
+ /* The case numbers are from abi-tags in glibc. */
+ switch (os_number)
+ {
+ case 0 :
+ *os_ident_ptr = ARM_ABI_LINUX;
+ break;
+
+ case 1 :
+ internal_error
+ (__FILE__, __LINE__,
+ "process_note_abi_sections: Hurd objects not supported");
+ break;
+
+ case 2 :
+ internal_error
+ (__FILE__, __LINE__,
+ "process_note_abi_sections: Solaris objects not supported");
+ break;
+
+ default :
+ internal_error
+ (__FILE__, __LINE__,
+ "process_note_abi_sections: unknown OS number %d",
+ os_number);
+ break;
+ }
+ }
+ }
+ /* NetBSD uses a similar trick. */
+ else if (strcmp (name, ".note.netbsd.ident") == 0 && sectsize > 0)
+ {
+ unsigned int name_length, desc_length, note_type;
+ char *note;
+
+ /* If the section is larger than this, it's probably not what we are
+ looking for. */
+ if (sectsize > 128)
+ sectsize = 128;
+
+ note = alloca (sectsize);
+
+ bfd_get_section_contents (abfd, sect, note,
+ (file_ptr) 0, (bfd_size_type) sectsize);
+
+ name_length = bfd_h_get_32 (abfd, note);
+ desc_length = bfd_h_get_32 (abfd, note + 4);
+ note_type = bfd_h_get_32 (abfd, note + 8);
+
+ if (name_length == 7 && desc_length == 4 && note_type == 1
+ && strcmp (note + 12, "NetBSD") == 0)
+ /* XXX Should we check the version here?
+ Probably not necessary yet. */
+ *os_ident_ptr = ARM_ABI_NETBSD_ELF;
+ }
+}
+
+/* Return one of the ELFOSABI_ constants for BFDs representing ELF
+ executables. If it's not an ELF executable or if the OS/ABI couldn't
+ be determined, simply return -1. */
+
+static int
+get_elfosabi (bfd *abfd)
+{
+ int elfosabi;
+ enum arm_abi arm_abi = ARM_ABI_UNKNOWN;
+
+ elfosabi = elf_elfheader (abfd)->e_ident[EI_OSABI];
+
+ /* When elfosabi is 0 (ELFOSABI_NONE), this is supposed to indicate
+ that we're on a SYSV system. However, GNU/Linux uses a note section
+ to record OS/ABI info, but leaves e_ident[EI_OSABI] zero. So we
+ have to check the note sections too.
+
+ GNU/ARM tools set the EI_OSABI field to ELFOSABI_ARM, so handle that
+ as well. */
+ if (elfosabi == 0 || elfosabi == ELFOSABI_ARM)
+ {
+ bfd_map_over_sections (abfd,
+ process_note_abi_tag_sections,
+ &arm_abi);
+ }
+
+ if (arm_abi != ARM_ABI_UNKNOWN)
+ return arm_abi;
+
+ switch (elfosabi)
+ {
+ case ELFOSABI_NONE:
+ /* Existing ARM Tools don't set this field, so look at the EI_FLAGS
+ field for more information. */
+
+ switch (EF_ARM_EABI_VERSION(elf_elfheader(abfd)->e_flags))
+ {
+ case EF_ARM_EABI_VER1:
+ return ARM_ABI_EABI_V1;
+
+ case EF_ARM_EABI_VER2:
+ return ARM_ABI_EABI_V2;
+
+ case EF_ARM_EABI_UNKNOWN:
+ /* Assume GNU tools. */
+ return ARM_ABI_APCS;
+
+ default:
+ internal_error (__FILE__, __LINE__,
+ "get_elfosabi: Unknown ARM EABI version 0x%lx",
+ EF_ARM_EABI_VERSION(elf_elfheader(abfd)->e_flags));
+
+ }
+ break;
+
+ case ELFOSABI_NETBSD:
+ return ARM_ABI_NETBSD_ELF;
+
+ case ELFOSABI_FREEBSD:
+ return ARM_ABI_FREEBSD;
+
+ case ELFOSABI_LINUX:
+ return ARM_ABI_LINUX;
+
+ case ELFOSABI_ARM:
+ /* Assume GNU tools with the old APCS abi. */
+ return ARM_ABI_APCS;
+
+ default:
+ }
+
+ return ARM_ABI_UNKNOWN;
+}
+
+struct arm_abi_handler
+{
+ struct arm_abi_handler *next;
+ enum arm_abi abi;
+ void (*init_abi)(struct gdbarch_info, struct gdbarch *);
+};
+
+struct arm_abi_handler *arm_abi_handler_list = NULL;
+
+void
+arm_gdbarch_register_os_abi (enum arm_abi abi,
+ void (*init_abi)(struct gdbarch_info,
+ struct gdbarch *))
+{
+ struct arm_abi_handler **handler_p;
+
+ for (handler_p = &arm_abi_handler_list; *handler_p != NULL;
+ handler_p = &(*handler_p)->next)
+ {
+ if ((*handler_p)->abi == abi)
+ {
+ internal_error
+ (__FILE__, __LINE__,
+ "arm_gdbarch_register_os_abi: A handler for this ABI variant (%d)"
+ " has already been registered", (int)abi);
+ /* If user wants to continue, override previous definition. */
+ (*handler_p)->init_abi = init_abi;
+ return;
+ }
+ }
+
+ (*handler_p)
+ = (struct arm_abi_handler *) xmalloc (sizeof (struct arm_abi_handler));
+ (*handler_p)->next = NULL;
+ (*handler_p)->abi = abi;
+ (*handler_p)->init_abi = init_abi;
+}
+
+/* Initialize the current architecture based on INFO. If possible,
+ re-use an architecture from ARCHES, which is a list of
+ architectures already created during this debugging session.
+
+ Called e.g. at program startup, when reading a core file, and when
+ reading a binary file. */
+
+static struct gdbarch *
+arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+{
+ struct gdbarch_tdep *tdep;
+ struct gdbarch *gdbarch;
+ enum arm_abi arm_abi = ARM_ABI_UNKNOWN;
+ struct arm_abi_handler *abi_handler;
+
+ /* Try to deterimine the ABI of the object we are loading. */
+
+ if (info.abfd != NULL)
+ {
+ switch (bfd_get_flavour (info.abfd))
+ {
+ case bfd_target_elf_flavour:
+ arm_abi = get_elfosabi (info.abfd);
+ break;
+
+ case bfd_target_aout_flavour:
+ if (strcmp (bfd_get_target(info.abfd), "a.out-arm-netbsd") == 0)
+ arm_abi = ARM_ABI_NETBSD_AOUT;
+ else
+ /* Assume it's an old APCS-style ABI. */
+ arm_abi = ARM_ABI_APCS;
+ break;
+
+ case bfd_target_coff_flavour:
+ /* Assume it's an old APCS-style ABI. */
+ /* XXX WinCE? */
+ arm_abi = ARM_ABI_APCS;
+ break;
+
+ default:
+ /* Not sure what to do here, leave the ABI 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->arm_abi == arm_abi)
+ return arches->gdbarch;
+ }
+
+ tdep = xmalloc (sizeof (struct gdbarch_tdep));
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ tdep->arm_abi = arm_abi;
+ if (arm_abi < ARM_ABI_INVALID)
+ tdep->abi_name = arm_abi_names[arm_abi];
+ else
+ {
+ internal_error (__FILE__, __LINE__, "Invalid setting of arm_abi %d",
+ (int) arm_abi);
+ tdep->abi_name = "<invalid>";
+ }
+
+ /* This is the way it has always defaulted. */
+ tdep->fp_model = ARM_FLOAT_FPA;
+
+ /* Breakpoints. */
+ switch (info.byte_order)
+ {
+ case BFD_ENDIAN_BIG:
+ tdep->arm_breakpoint = arm_default_arm_be_breakpoint;
+ tdep->arm_breakpoint_size = sizeof (arm_default_arm_be_breakpoint);
+ tdep->thumb_breakpoint = arm_default_thumb_be_breakpoint;
+ tdep->thumb_breakpoint_size = sizeof (arm_default_thumb_be_breakpoint);
+
+ break;
+
+ case BFD_ENDIAN_LITTLE:
+ tdep->arm_breakpoint = arm_default_arm_le_breakpoint;
+ tdep->arm_breakpoint_size = sizeof (arm_default_arm_le_breakpoint);
+ tdep->thumb_breakpoint = arm_default_thumb_le_breakpoint;
+ tdep->thumb_breakpoint_size = sizeof (arm_default_thumb_le_breakpoint);
+
+ break;
+
+ default:
+ internal_error (__FILE__, __LINE__,
+ "arm_gdbarch_init: bad byte order for float format");
+ }
+
+ /* On ARM targets char defaults to unsigned. */
+ set_gdbarch_char_signed (gdbarch, 0);
+
+ /* This should be low enough for everything. */
+ tdep->lowest_pc = 0x20;
+ tdep->jb_pc = -1; /* Longjump support not enabled by default. */
+
+ 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);
+
+ 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);
+
+ /* 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_frameless_function_invocation
+ (gdbarch, arm_frameless_function_invocation);
+ set_gdbarch_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);
+ set_gdbarch_push_dummy_frame (gdbarch, arm_push_dummy_frame);
+ set_gdbarch_pop_frame (gdbarch, arm_pop_frame);
+
+ /* Address manipulation. */
+ set_gdbarch_smash_text_address (gdbarch, arm_smash_text_address);
+ set_gdbarch_addr_bits_remove (gdbarch, arm_addr_bits_remove);
+
+ /* Offset from address of function to start of its code. */
+ set_gdbarch_function_start_offset (gdbarch, 0);
+
+ /* Advance PC across function entry code. */
+ 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);
+
+ /* The stack grows downward. */
+ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+
+ /* Breakpoint manipulation. */
+ set_gdbarch_breakpoint_from_pc (gdbarch, arm_breakpoint_from_pc);
+ set_gdbarch_decr_pc_after_break (gdbarch, 0);
+
+ /* Information about registers, etc. */
+ set_gdbarch_print_float_info (gdbarch, arm_print_float_info);
+ set_gdbarch_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_register_bytes (gdbarch,
+ (NUM_GREGS * INT_REGISTER_RAW_SIZE
+ + NUM_FREGS * FP_REGISTER_RAW_SIZE
+ + NUM_SREGS * STATUS_REGISTER_SIZE));
+ 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_register_virtual_type (gdbarch, arm_register_type);
+
+ /* Integer registers are 4 bytes. */
+ set_gdbarch_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);
+
+ /* Single stepping. */
+ /* 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);
+
+ /* 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. */
+ if (arm_abi == ARM_ABI_UNKNOWN)
+ {
+ /* Don't complain about not knowing the ABI variant if we don't
+ have an inferior. */
+ if (info.abfd)
+ fprintf_filtered
+ (gdb_stderr, "GDB doesn't recognize the ABI of the inferior. "
+ "Attempting to continue with the default ARM settings");
+ }
+ else
+ {
+ for (abi_handler = arm_abi_handler_list; abi_handler != NULL;
+ abi_handler = abi_handler->next)
+ if (abi_handler->abi == arm_abi)
+ break;
+
+ if (abi_handler)
+ abi_handler->init_abi (info, gdbarch);
+ else
+ {
+ /* We assume that if GDB_MULTI_ARCH is less than
+ GDB_MULTI_ARCH_TM that an ABI variant can be supported by
+ overriding definitions in this file. */
+ if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
+ fprintf_filtered
+ (gdb_stderr,
+ "A handler for the ABI variant \"%s\" is not built into this "
+ "configuration of GDB. "
+ "Attempting to continue with the default ARM settings",
+ arm_abi_names[arm_abi]);
+ }
+ }
+
+ /* Now we have tuned the configuration, set a few final things,
+ based on what the OS ABI has told us. */
+
+ if (tdep->jb_pc >= 0)
+ set_gdbarch_get_longjmp_target (gdbarch, arm_get_longjmp_target);
+
+ /* Floating point sizes and format. */
+ switch (info.byte_order)
+ {
+ case BFD_ENDIAN_BIG:
+ set_gdbarch_float_format (gdbarch, &floatformat_ieee_single_big);
+ set_gdbarch_double_format (gdbarch, &floatformat_ieee_double_big);
+ set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
+
+ break;
+
+ 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);
+ }
+ break;
+
+ default:
+ internal_error (__FILE__, __LINE__,
+ "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);
+
+ prologue_cache.saved_regs = (CORE_ADDR *)
+ xcalloc (1, (sizeof (CORE_ADDR)
+ * (gdbarch_num_regs (gdbarch)
+ + gdbarch_num_pseudo_regs (gdbarch))));
+
+ return gdbarch;
+}
+
+static void
+arm_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ if (tdep == NULL)
+ return;
+
+ if (tdep->abi_name != NULL)
+ fprintf_unfiltered (file, "arm_dump_tdep: ABI = %s\n", tdep->abi_name);
+ else
+ internal_error (__FILE__, __LINE__,
+ "arm_dump_tdep: illegal setting of tdep->arm_abi (%d)",
+ (int) tdep->arm_abi);
+
+ fprintf_unfiltered (file, "arm_dump_tdep: Lowest pc = 0x%lx",
+ (unsigned long) tdep->lowest_pc);
+}
+
+static void
+arm_init_abi_eabi_v1 (struct gdbarch_info info,
+ struct gdbarch *gdbarch)
+{
+ /* Place-holder. */
+}
+
+static void
+arm_init_abi_eabi_v2 (struct gdbarch_info info,
+ struct gdbarch *gdbarch)
+{
+ /* Place-holder. */
+}
+
+static void
+arm_init_abi_apcs (struct gdbarch_info info,
+ struct gdbarch *gdbarch)
+{
+ /* Place-holder. */
+}
+
void
_initialize_arm_tdep (void)
{
int numregs, i, j;
static char *helptext;
+ if (GDB_MULTI_ARCH)
+ gdbarch_register (bfd_arch_arm, arm_gdbarch_init, arm_dump_tdep);
+
+ /* Register some ABI variants for embedded systems. */
+ arm_gdbarch_register_os_abi (ARM_ABI_EABI_V1, arm_init_abi_eabi_v1);
+ arm_gdbarch_register_os_abi (ARM_ABI_EABI_V2, arm_init_abi_eabi_v2);
+ arm_gdbarch_register_os_abi (ARM_ABI_APCS, arm_init_abi_apcs);
+
tm_print_insn = gdb_print_insn_arm;
/* Get the number of possible sets of register names defined in opcodes. */
"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));
- prologue_cache.saved_regs = (CORE_ADDR *)
- xcalloc (1, SIZEOF_FRAME_SAVED_REGS);
}
projects / deliverable / binutils-gdb.git / blobdiff