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-rw-r--r--gdb/config/arm/tm-arm.h443
1 files changed, 245 insertions, 198 deletions
diff --git a/gdb/config/arm/tm-arm.h b/gdb/config/arm/tm-arm.h
index d33477d..fb7f7b9 100644
--- a/gdb/config/arm/tm-arm.h
+++ b/gdb/config/arm/tm-arm.h
@@ -1,4 +1,4 @@
-/* Definitions to make GDB target for an ARM
+/* Definitions to target GDB to ARM targets.
Copyright 1986-1989, 1991, 1993-1999 Free Software Foundation, Inc.
This file is part of GDB.
@@ -18,120 +18,168 @@
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-/* Forward decls for prototypes */
+#ifndef TM_ARM_H
+#define TM_ARM_H
+
+/* Forward declarations for prototypes. */
struct type;
struct value;
#define TARGET_BYTE_ORDER_SELECTABLE
-/* IEEE format floating point */
+/* Target byte order on ARM defaults to selectable, and defaults to
+ little endian. */
+#define TARGET_BYTE_ORDER_SELECTABLE_P 1
+#define TARGET_BYTE_ORDER_DEFAULT LITTLE_ENDIAN
+/* IEEE format floating point. */
#define IEEE_FLOAT
+#define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
+ ? &floatformat_ieee_double_big \
+ : &floatformat_ieee_double_littlebyte_bigword)
-/* FIXME: may need a floatformat_ieee_double_bigbyte_littleword format for
- BIG_ENDIAN use. -fnf */
-
-#define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
- ? &floatformat_ieee_double_big \
- : &floatformat_ieee_double_littlebyte_bigword)
-
-/* When reading symbols, we need to zap the low bit of the address, which
- may be set to 1 for Thumb functions. */
+/* When reading symbols, we need to zap the low bit of the address,
+ which may be set to 1 for Thumb functions. */
#define SMASH_TEXT_ADDRESS(addr) ((addr) &= ~0x1)
/* Remove useless bits from addresses in a running program. */
-CORE_ADDR arm_addr_bits_remove PARAMS ((CORE_ADDR));
+CORE_ADDR arm_addr_bits_remove (CORE_ADDR);
-#define ADDR_BITS_REMOVE(val) (arm_addr_bits_remove (val))
+#define ADDR_BITS_REMOVE(val) (arm_addr_bits_remove (val))
-/* Offset from address of function to start of its code.
- Zero on most machines. */
+/* Offset from address of function to start of its code. Zero on most
+ machines. */
-#define FUNCTION_START_OFFSET 0
+#define FUNCTION_START_OFFSET 0
-/* Advance PC across any function entry prologue instructions
- to reach some "real" code. */
+/* Advance PC across any function entry prologue instructions to reach
+ some "real" code. */
-extern CORE_ADDR arm_skip_prologue PARAMS ((CORE_ADDR pc));
+extern CORE_ADDR arm_skip_prologue (CORE_ADDR pc);
-#define SKIP_PROLOGUE(pc) (arm_skip_prologue (pc))
+#define SKIP_PROLOGUE(pc) (arm_skip_prologue (pc))
-/* 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. */
+/* 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. */
-#define SAVED_PC_AFTER_CALL(frame) arm_saved_pc_after_call (frame)
+#define SAVED_PC_AFTER_CALL(frame) arm_saved_pc_after_call (frame)
struct frame_info;
-extern CORE_ADDR arm_saved_pc_after_call PARAMS ((struct frame_info *));
-
-/* I don't know the real values for these. */
-#define TARGET_UPAGES UPAGES
-#define TARGET_NBPG NBPG
-
-/* Address of end of stack space. */
-
-#define STACK_END_ADDR (0x01000000 - (TARGET_UPAGES * TARGET_NBPG))
+extern CORE_ADDR arm_saved_pc_after_call (struct frame_info *);
+
+/* 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. ARM Linux, RisciX,
+ and I suspect NetBSD will all use a software interrupt rather than
+ an undefined instruction to force a trap. This can be handled by
+ redefining some or all of the following in a target dependent
+ fashion. */
+
+#define ARM_LE_BREAKPOINT {0xFE,0xDE,0xFF,0xE7}
+#define ARM_BE_BREAKPOINT {0xE7,0xFF,0xDE,0xFE}
+#define THUMB_LE_BREAKPOINT {0xfe,0xdf}
+#define THUMB_BE_BREAKPOINT {0xdf,0xfe}
/* Stack grows downward. */
#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
-/* !!!! 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
+/* !!!! 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. */
-/* BREAKPOINT_FROM_PC uses the program counter value to determine whether a
- 16- 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 pc (if necessary) to
- point to the actual memory location where the breakpoint should be
- inserted. */
+/* BREAKPOINT_FROM_PC uses the program counter value to determine
+ whether a 16- 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 pc (if
+ necessary) to point to the actual memory location where the
+ breakpoint should be inserted. */
extern breakpoint_from_pc_fn arm_breakpoint_from_pc;
#define BREAKPOINT_FROM_PC(pcptr, lenptr) arm_breakpoint_from_pc (pcptr, lenptr)
-/* Amount PC must be decremented by after a breakpoint.
- This is often the number of bytes in BREAKPOINT
- but not always. */
+/* Amount PC must be decremented by after a breakpoint. This is often
+ the number of bytes in BREAKPOINT but not always. */
#define DECR_PC_AFTER_BREAK 0
-/* code to execute to print interesting information about the
- * floating point processor (if any)
- * No need to define if there is nothing to do.
- */
+/* Code to execute to print interesting information about the floating
+ point processor (if any) or emulator. No need to define if there
+ is nothing to do. */
extern void arm_float_info (void);
-#define FLOAT_INFO { arm_float_info (); }
+#define FLOAT_INFO { arm_float_info (); }
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
-#define REGISTER_SIZE 4
-
-/* Number of machine registers */
-
-/* Note: I make a fake copy of the pc in register 25 (calling it ps) so
- that I can clear the status bits from pc (register 15) */
-
-#define NUM_REGS 26
+#define REGISTER_SIZE 4
+
+/* Say how long FP registers are. Used for documentation purposes and
+ code readability in this header. IEEE extended doubles are 80
+ bits. DWORD aligned they use 96 bits. */
+#define FP_REGISTER_RAW_SIZE 12
+
+/* GCC doesn't support long doubles (extended IEEE values). The FP
+ register virtual size is therefore 64 bits. Used for documentation
+ purposes and code readability in this header. */
+#define FP_REGISTER_VIRTUAL_SIZE 8
+
+/* Status registers are the same size as general purpose registers.
+ Used for documentation purposes and code readability in this
+ header. */
+#define STATUS_REGISTER_SIZE REGISTER_SIZE
+
+/* Number of machine registers. The only define actually required
+ is NUM_REGS. The other definitions are used for documentation
+ purposes and code readability. */
+/* For 26 bit ARM code, a fake copy of the PC is placed in register 25 (PS)
+ (and called PS for processor status) so the status bits can be cleared
+ from the PC (register 15). For 32 bit ARM code, a copy of CPSR is placed
+ in PS. */
+#define NUM_FREGS 8 /* Number of floating point registers. */
+#define NUM_SREGS 2 /* Number of status registers. */
+#define NUM_GREGS 16 /* Number of general purpose registers. */
+#define NUM_REGS (NUM_GREGS + NUM_FREGS + NUM_SREGS)
/* An array of names of registers. */
-
extern char **arm_register_names;
+
#define REGISTER_NAME(i) arm_register_names[i]
-/* Register numbers of various important registers.
- Note that some of these values are "real" register numbers,
- and correspond to the general registers of the machine,
- and some are "phony" register numbers which are too large
- to be actual register numbers as far as the user is concerned
- but do serve to get the desired values when passed to read_register. */
+/* Register numbers of various important registers. Note that some of
+ these values are "real" register numbers, and correspond to the
+ general registers of the machine, and some are "phony" register
+ numbers which are too large to be actual register numbers as far as
+ the user is concerned but do serve to get the desired values when
+ passed to read_register. */
#define A1_REGNUM 0 /* first integer-like argument */
#define A4_REGNUM 3 /* last integer-like argument */
@@ -180,88 +228,97 @@ extern char **arm_register_names;
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. */
-#define REGISTER_BYTES (16*4 + 12*8 + 4 + 4)
+
+#define REGISTER_BYTES ((NUM_GREGS * REGISTER_SIZE) + \
+ (NUM_FREGS * FP_REGISTER_RAW_SIZE) + \
+ (NUM_SREGS * STATUS_REGISTER_SIZE))
/* Index within `registers' of the first byte of the space for
register N. */
-#define REGISTER_BYTE(N) (((N) < F0_REGNUM) ? (N)*4 : \
- (((N) < PS_REGNUM) ? 16*4 + ((N) - 16)*12 : \
- 16*4 + 8*12 + ((N) - FPS_REGNUM) * 4))
-
-/* Number of bytes of storage in the actual machine representation
- for register N. On the vax, all regs are 4 bytes. */
-
-#define REGISTER_RAW_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 12)
-
-/* Number of bytes of storage in the program's representation
- for register N. On the vax, all regs are 4 bytes. */
-
-#define REGISTER_VIRTUAL_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 8)
+#define REGISTER_BYTE(N) \
+ ((N) < F0_REGNUM \
+ ? (N) * REGISTER_SIZE \
+ : ((N) < PS_REGNUM \
+ ? (NUM_GREGS * REGISTER_SIZE + \
+ ((N) - F0_REGNUM) * FP_REGISTER_RAW_SIZE) \
+ : (NUM_GREGS * REGISTER_SIZE + \
+ NUM_FREGS * FP_REGISTER_RAW_SIZE + \
+ ((N) - 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. */
+#define REGISTER_RAW_SIZE(N) \
+ ((N) < F0_REGNUM ? REGISTER_SIZE : \
+ (N) < FPS_REGNUM ? FP_REGISTER_RAW_SIZE : STATUS_REGISTER_SIZE)
+
+/* Number of bytes of storage in a program's representation
+ for register N. */
+#define REGISTER_VIRTUAL_SIZE(N) \
+ ((N) < F0_REGNUM ? REGISTER_SIZE : \
+ (N) < FPS_REGNUM ? FP_REGISTER_VIRTUAL_SIZE : STATUS_REGISTER_SIZE)
/* Largest value REGISTER_RAW_SIZE can have. */
-#define MAX_REGISTER_RAW_SIZE 12
+#define MAX_REGISTER_RAW_SIZE FP_REGISTER_RAW_SIZE
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
+#define MAX_REGISTER_VIRTUAL_SIZE FP_REGISTER_VIRTUAL_SIZE
-#define MAX_REGISTER_VIRTUAL_SIZE 8
-
-/* Nonzero if register N requires conversion
- from raw format to virtual format. */
-#define REGISTER_CONVERTIBLE(N) ((unsigned)(N) - F0_REGNUM < 8)
-
-/* Convert data from raw format for register REGNUM in buffer FROM
- to virtual format with type TYPE in buffer TO. */
+/* Nonzero if register N requires conversion from raw format to
+ virtual format. */
+extern int arm_register_convertible (unsigned int);
+#define REGISTER_CONVERTIBLE(REGNUM) (arm_register_convertible (REGNUM))
-void convert_from_extended (void *ptr, /*double*/void *dbl);
+/* Convert data from raw format for register REGNUM in buffer FROM to
+ virtual format with type TYPE in buffer TO. */
+extern void arm_register_convert_to_virtual (unsigned int regnum,
+ struct type *type,
+ void *from, void *to);
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
-{ \
- double val; \
- convert_from_extended ((FROM), & val); \
- store_floating ((TO), TYPE_LENGTH (TYPE), val); \
-}
+ arm_register_convert_to_virtual (REGNUM, TYPE, FROM, TO)
-/* Convert data from virtual format with type TYPE in buffer FROM
- to raw format for register REGNUM in buffer TO. */
+/* Convert data from virtual format with type TYPE in buffer FROM to
+ raw format for register REGNUM in buffer TO. */
-extern void convert_to_extended (void *ptr, /*double*/void *dbl);
+extern void arm_register_convert_to_raw (unsigned int regnum,
+ struct type *type,
+ void *from, void *to);
+#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
+ arm_register_convert_to_raw (REGNUM, TYPE, FROM, TO)
-#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
-{ \
- double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
- convert_to_extended (&val, (TO)); \
-}
-/* Return the GDB type object for the "standard" data type
- of data in register N. */
+/* Return the GDB type object for the "standard" data type of data in
+ register N. */
#define REGISTER_VIRTUAL_TYPE(N) \
- (((unsigned)(N) - F0_REGNUM) < 8 ? builtin_type_double : builtin_type_int)
-
+ (((unsigned)(N) - F0_REGNUM) < NUM_FREGS \
+ ? builtin_type_double : builtin_type_int)
+
/* The system C compiler uses a similar structure return convention to gcc */
extern use_struct_convention_fn arm_use_struct_convention;
-#define USE_STRUCT_CONVENTION(gcc_p, type) arm_use_struct_convention (gcc_p, type)
+#define USE_STRUCT_CONVENTION(gcc_p, type) \
+ arm_use_struct_convention (gcc_p, type)
/* Store the address of the place in which to copy the structure the
subroutine will return. This is called from call_function. */
#define STORE_STRUCT_RETURN(ADDR, SP) \
- { write_register (0, (ADDR)); }
+ write_register (A1_REGNUM, (ADDR))
-/* Extract from an array REGBUF containing the (raw) register state
- a function return value of type TYPE, and copy that, in virtual format,
- into VALBUF. */
+/* Extract from an array REGBUF containing the (raw) register state a
+ function return value of type TYPE, and copy that, in virtual
+ format, into VALBUF. */
+extern void arm_extract_return_value (struct type *, char[], char *);
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
- if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
- convert_from_extended (REGBUF + REGISTER_BYTE (F0_REGNUM), VALBUF); \
- else \
- memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE))
+ arm_extract_return_value ((TYPE), (REGBUF), (VALBUF))
-/* Write into appropriate registers a function return value
- of type TYPE, given in virtual format. */
+/* Write into appropriate registers a function return value of type
+ TYPE, given in virtual format. */
+extern void convert_to_extended (void *dbl, void *ptr);
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) { \
char _buf[MAX_REGISTER_RAW_SIZE]; \
@@ -275,7 +332,7 @@ extern use_struct_convention_fn arm_use_struct_convention;
as a CORE_ADDR (or an expression that can be used as one). */
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
- (extract_address ((PTR) (REGBUF), REGISTER_RAW_SIZE(0)))
+ (extract_address ((PTR)(REGBUF), REGISTER_RAW_SIZE(0)))
/* Specify that for the native compiler variables for a particular
lexical context are listed after the beginning LBRAC instead of
@@ -283,11 +340,11 @@ extern use_struct_convention_fn arm_use_struct_convention;
#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) (!(gcc_p))
-/* 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 current size of the stack frame, and the offset of
- the frame pointer from the stack pointer (for frameless functions, and
- when we're still in the prologue of a function with a frame) */
+/* 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
+ current size of the stack frame, and the offset of the frame
+ pointer from the stack pointer (for frameless functions, and when
+ we're still in the prologue of a function with a frame) */
#define EXTRA_FRAME_INFO \
struct frame_saved_regs fsr; \
@@ -295,29 +352,29 @@ extern use_struct_convention_fn arm_use_struct_convention;
int frameoffset; \
int framereg;
-extern void arm_init_extra_frame_info PARAMS ((int fromleaf,
- struct frame_info *fi));
+extern void arm_init_extra_frame_info (int fromleaf, struct frame_info * fi);
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
- arm_init_extra_frame_info (fromleaf, fi)
+ arm_init_extra_frame_info ((fromleaf), (fi))
/* Return the frame address. On ARM, it is R11; on Thumb it is R7. */
-CORE_ADDR arm_target_read_fp PARAMS ((void));
+CORE_ADDR arm_target_read_fp (void);
#define TARGET_READ_FP() arm_target_read_fp ()
-/* Describe the pointer in each stack frame to the previous stack frame
- (its caller). */
+/* Describe the pointer in each stack frame to the previous stack
+ frame (its caller). */
-/* FRAME_CHAIN takes a frame's nominal address
- and produces the frame's chain-pointer.
+/* FRAME_CHAIN takes a frame's nominal address and produces the
+ frame's chain-pointer.
However, if FRAME_CHAIN_VALID returns zero,
it means the given frame is the outermost one and has no caller. */
-#define FRAME_CHAIN(thisframe) (CORE_ADDR) arm_frame_chain (thisframe)
-extern CORE_ADDR arm_frame_chain PARAMS ((struct frame_info *));
+#define FRAME_CHAIN(thisframe) arm_frame_chain (thisframe)
+extern CORE_ADDR arm_frame_chain (struct frame_info *);
-extern int arm_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
-#define FRAME_CHAIN_VALID(chain, thisframe) arm_frame_chain_valid (chain, thisframe)
+extern int arm_frame_chain_valid (CORE_ADDR, struct frame_info *);
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+ arm_frame_chain_valid (chain, thisframe)
/* Define other aspects of the stack frame. */
@@ -325,14 +382,14 @@ extern int arm_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
by FI does not have a frame on the stack associated with it. If it
does not, FRAMELESS is set to 1, else 0.
- Sometimes we have functions that do a little setup (like saving the vN
- registers with the stmdb instruction, but DO NOT set up a frame.
+ Sometimes we have functions that do a little setup (like saving the
+ vN registers with the stmdb instruction, but DO NOT set up a frame.
The symbol table will report this as a prologue. However, it is
- important not to try to parse these partial frames as frames, or we
+ important not to try to parse these partial frames as frames, or we
will get really confused.
- So I will demand 3 instructions between the start & end of the prologue
- before I call it a real prologue, i.e. at least
+ So I will demand 3 instructions between the start & end of the
+ prologue before I call it a real prologue, i.e. at least
mov ip, sp,
stmdb sp!, {}
sub sp, ip, #4. */
@@ -340,11 +397,11 @@ extern int arm_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
extern int arm_frameless_function_invocation (struct frame_info *fi);
#define FRAMELESS_FUNCTION_INVOCATION(FI) \
(arm_frameless_function_invocation (FI))
-
+
/* Saved Pc. */
#define FRAME_SAVED_PC(FRAME) arm_frame_saved_pc (FRAME)
-extern CORE_ADDR arm_frame_saved_pc PARAMS ((struct frame_info *));
+extern CORE_ADDR arm_frame_saved_pc (struct frame_info *);
#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
@@ -355,15 +412,15 @@ extern CORE_ADDR arm_frame_saved_pc PARAMS ((struct frame_info *));
#define FRAME_NUM_ARGS(fi) (-1)
-/* Return number of bytes at start of arglist that are not really args. */
+/* Return number of bytes at start of arglist that are not really args. */
#define FRAME_ARGS_SKIP 0
-/* Put here the code to store, into a struct frame_saved_regs,
- the addresses of the saved registers of frame described by FRAME_INFO.
+/* Put here the code to 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. */
+ ways in the stack frame. sp is even more special: the address we
+ return for it IS the sp for the next frame. */
struct frame_saved_regs;
struct frame_info;
@@ -371,24 +428,24 @@ void arm_frame_find_saved_regs (struct frame_info * fi,
struct frame_saved_regs * fsr);
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
- arm_frame_find_saved_regs (frame_info, &(frame_saved_regs));
-
+ arm_frame_find_saved_regs (frame_info, &(frame_saved_regs));
/* Things needed for making the inferior call functions. */
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
- (arm_push_arguments ((nargs), (args), (sp), (struct_return), (struct_addr)))
-extern CORE_ADDR arm_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
+ sp = arm_push_arguments ((nargs), (args), (sp), (struct_return), (struct_addr))
+extern CORE_ADDR arm_push_arguments (int, struct value **, CORE_ADDR, int,
+ CORE_ADDR);
/* Push an empty stack frame, to record the current PC, etc. */
-void arm_push_dummy_frame PARAMS ((void));
+void arm_push_dummy_frame (void);
#define PUSH_DUMMY_FRAME arm_push_dummy_frame ()
/* Discard from the stack the innermost frame, restoring all registers. */
-void arm_pop_frame PARAMS ((void));
+void arm_pop_frame (void);
#define POP_FRAME arm_pop_frame ()
@@ -400,69 +457,59 @@ void arm_pop_frame PARAMS ((void));
Note this is 12 bytes. */
-#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xE7FFDEFE}
-
-#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
+#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xe7ffdefe}
+#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
#define CALL_DUMMY_BREAKPOINT_OFFSET arm_call_dummy_breakpoint_offset()
-extern int arm_call_dummy_breakpoint_offset PARAMS ((void));
+extern int arm_call_dummy_breakpoint_offset (void);
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
+/* Insert the specified number of args and function address into a
+ call sequence of the above form stored at DUMMYNAME. */
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
- arm_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
-
-void arm_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun,
- int nargs, struct value ** args,
- struct type * type, int gcc_p));
+ arm_fix_call_dummy ((dummyname), (pc), (fun), (nargs), (args), (type), (gcc_p))
-CORE_ADDR arm_get_next_pc PARAMS ((CORE_ADDR));
+void arm_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun,
+ int nargs, struct value ** args,
+ struct type * type, int gcc_p);
-/* Functions for dealing with Thumb call thunks. */
-#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) arm_in_call_stub (pc, name)
-#define SKIP_TRAMPOLINE_CODE(pc) arm_skip_stub (pc)
-extern int arm_in_call_stub PARAMS ((CORE_ADDR pc, char *name));
-extern CORE_ADDR arm_skip_stub PARAMS ((CORE_ADDR pc));
+CORE_ADDR arm_get_next_pc (CORE_ADDR pc);
-/* Function to determine whether MEMADDR is in a Thumb function. */
-extern int arm_pc_is_thumb PARAMS ((bfd_vma memaddr));
-
-/* Function to determine whether MEMADDR is in a call dummy called from
- a Thumb function. */
-extern int arm_pc_is_thumb_dummy PARAMS ((bfd_vma memaddr));
-
-/* Macros for setting and testing a bit in a minimal symbol that
- marks it as Thumb function. The MSB of the minimal symbol's
- "info" field is used for this purpose. This field is already
- being used to store the symbol size, so the assumption is
- that the symbol size cannot exceed 2^31.
+/* Macros for setting and testing a bit in a minimal symbol that marks
+ it as Thumb function. The MSB of the minimal symbol's "info" field
+ is used for this purpose. This field is already being used to store
+ the symbol size, so the assumption is that the symbol size cannot
+ exceed 2^31.
COFF_MAKE_MSYMBOL_SPECIAL
- ELF_MAKE_MSYMBOL_SPECIAL tests whether the COFF or ELF symbol corresponds
- to a thumb function, and sets a "special" bit in a
- minimal symbol to indicate that it does
- MSYMBOL_SET_SPECIAL actually sets the "special" bit
- MSYMBOL_IS_SPECIAL tests the "special" bit in a minimal symbol
- MSYMBOL_SIZE returns the size of the minimal symbol, i.e.
- the "info" field with the "special" bit masked out
- */
+ ELF_MAKE_MSYMBOL_SPECIAL
+
+ These macros test whether the COFF or ELF symbol corresponds to a
+ thumb function, and set a "special" bit in a minimal symbol to
+ indicate that it does.
+
+ MSYMBOL_SET_SPECIAL Actually sets the "special" bit.
+ MSYMBOL_IS_SPECIAL Tests the "special" bit in a minimal symbol.
+ MSYMBOL_SIZE Returns the size of the minimal symbol,
+ i.e. the "info" field with the "special" bit
+ masked out
+ */
extern int coff_sym_is_thumb (int val);
+
#define MSYMBOL_SET_SPECIAL(msym) \
- MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000)
+ MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000)
#define MSYMBOL_IS_SPECIAL(msym) \
(((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
#define MSYMBOL_SIZE(msym) \
((long) MSYMBOL_INFO (msym) & 0x7fffffff)
-/* Thumb symbol are of type STT_LOPROC, (synonymous with STT_ARM_TFUNC) */
+/* Thumb symbols are of type STT_LOPROC, (synonymous with STT_ARM_TFUNC) */
#define ELF_MAKE_MSYMBOL_SPECIAL(sym,msym) \
- { if(ELF_ST_TYPE(((elf_symbol_type *)(sym))->internal_elf_sym.st_info) == STT_LOPROC) \
- MSYMBOL_SET_SPECIAL(msym); }
+ { if(ELF_ST_TYPE(((elf_symbol_type *)(sym))->internal_elf_sym.st_info) == STT_LOPROC) \
+ MSYMBOL_SET_SPECIAL(msym); }
#define COFF_MAKE_MSYMBOL_SPECIAL(val,msym) \
{ if(coff_sym_is_thumb(val)) MSYMBOL_SET_SPECIAL(msym); }
-#undef IN_SIGTRAMP
-#define IN_SIGTRAMP(pc, name) 0
+#endif /* TM_ARM_H */