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Diffstat (limited to 'gdb/m-pyr.h')
| -rw-r--r-- | gdb/m-pyr.h | 612 |
1 files changed, 612 insertions, 0 deletions
diff --git a/gdb/m-pyr.h b/gdb/m-pyr.h new file mode 100644 index 0000000..89d8444 --- /dev/null +++ b/gdb/m-pyr.h @@ -0,0 +1,612 @@ +/* Definitions to make GDB run on a Pyramidax under OSx 4.0 (4.2bsd). + Copyright (C) 1988, 1989 Free Software Foundation, Inc. + +This file is part of GDB. + +GDB is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 1, or (at your option) +any later version. + +GDB is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GDB; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* The FSF prefers to define "pyramid on Pyramid 90x machines; the + manufacturer insists on "pyr". Define both. */ + +#ifndef pyr +#define pyr +#endif + +#ifndef pyramid +#define pyramid +#endif + +/* Define PYRAMID_CONTROL_FRAME_DEBUGGING to get copious messages + about reading the control stack on standard output. This + makes gdb unusable as a debugger. */ + +/* #define PYRAMID_CONTROL_FRAME_DEBUGGING */ + +/* Define PYRAMID_FRAME_DEBUGGING +/* use Pyramid's slightly strange ptrace */ +#define PYRAMID_PTRACE + +/* Traditional Unix virtual address spaces have thre regions: text, + data and stack. The text, initialised data, and uninitialised data + are represented in separate segments of the a.out file. + When a process dumps core, the data and stack regions are written + to a core file. This gives a debugger enough information to + reconstruct (and debug) the virtual address space at the time of + the coredump. + Pyramids have an distinct fourth region of the virtual address + space, in which the contents of the windowed registers are stacked + in fixed-size frames. Pyramid refer to this region as the control + stack. Each call (or trap) automatically allocates a new register + frame; each return deallocates the current frame and restores the + windowed registers to their values before the call. + + When dumping core, the control stack is written to a core files as + a third segment. The core-handling functions need to know to deal + with it. */ +/* Tell core.c there is an extra segment. */ +#define REG_STACK_SEGMENT +/* Tell dep.c what the extra segment is. */ +#define PYRAMID_CORE + +/* Define the bit, byte, and word ordering of the machine. */ +#define BITS_BIG_ENDIAN +#define BYTES_BIG_ENDIAN +#define WORDS_BIG_ENDIAN + +/* Floating point is IEEE compatible on most Pyramid hardware + (Older processors do not have IEEE NaNs). */ +#define IEEE_FLOAT + +#define NO_SIGINTERRUPT + +#define HAVE_WAIT_STRUCT + +/* Get rid of any system-imposed stack limit if possible. */ + +#define SET_STACK_LIMIT_HUGE + +/* Define this if the C compiler puts an underscore at the front + of external names before giving them to the linker. */ + +#define NAMES_HAVE_UNDERSCORE + +/* Debugger information will be in DBX format. */ + +#define READ_DBX_FORMAT + +/* Offset from address of function to start of its code. + Zero on most machines. */ + +#define FUNCTION_START_OFFSET 0 + +/* Advance PC across any function entry prologue instructions + to reach some "real" code. */ + +/* FIXME -- do we want to skip insns to allocate the local frame? + If so, what do they look like? + This is becoming harder, since tege@sics.SE wants to change + gcc to not output a prologue when no frame is needed. */ +#define SKIP_PROLOGUE(pc) do {} while (0) + + +/* 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) FRAME_SAVED_PC(frame) + +/* This is the amount to subtract from u.u_ar0 + to get the offset in the core file of the register values. */ + +#define KERNEL_U_ADDR (0x80000000 - (UPAGES * NBPG)) + +/* Address of end of stack space. */ +/* This seems to be right for the 90x comp.vuw.ac.nz. + The correct value at any site may be a function of the configured + maximum control stack depth. If so, I don't know where the + control-stack depth is configured, so I can't #include it here. */ +#define STACK_END_ADDR (0xc00cc000) + +/* Register window stack (Control stack) stack definitions + - Address of beginning of control stack. + - size of control stack frame + (Note that since crts0 is usually the first function called, + main()'s control stack is one frame (0x80 bytes) beyond this value. */ + +#define CONTROL_STACK_ADDR (0xc00cd000) + +/* Bytes in a register window -- 16 parameter regs, 16 local regs + for each call, is 32 regs * 4 bytes */ + +#define CONTROL_STACK_FRAME_SIZE (32*4) + +/* FIXME. On a pyr, Data Stack grows downward; control stack goes upwards. + Which direction should we use for INNER_THAN, PC_INNER_THAN ?? */ + +#define INNER_THAN < +#define PC_INNER_THAN > + +/* Stack has strict alignment. */ + +#define STACK_ALIGN(ADDR) (((ADDR)+3)&-4) + +/* Sequence of bytes for breakpoint instruction. */ + +#define BREAKPOINT {0xf0, 00, 00, 00} + +/* 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 + +/* Nonzero if instruction at PC is a return instruction. + On a pyr, this is either "ret" or "retd". + It would be friendly to check that any "retd" always had an + argument of 0, since anything else is invalid. */ + +#define ABOUT_TO_RETURN(pc) \ +(((read_memory_integer (pc, 2) & 0x3ff0) == 0x3090) || \ + ((read_memory_integer (pc, 2) & 0x0ff0) == 0x00a0)) + +/* Return 1 if P points to an invalid floating point value. + LEN is the length in bytes -- not relevant on the Vax. */ +/* FIXME -- this is ok for a vax, bad for big-endian ieee format. + I would use the definition for a Sun; but it is no better! */ + +#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000) + +/* Larges integer type */ +#define LONGEST long + +/* Name of the builtin type for the LONGEST type above. */ +#define BUILTIN_TYPE_LONGEST builtin_type_long + +/* Say how long (ordinary) registers are. */ + +#define REGISTER_TYPE long + +/* Number of machine registers */ +/* pyramids have 64, plus one for the PSW; plus perhaps one more for the + kernel stack pointer (ksp) and control-stack pointer (CSP) */ + +#define NUM_REGS 67 + +/* Initializer for an array of names of registers. + There should be NUM_REGS strings in this initializer. */ + +#define REGISTER_NAMES \ +{"gr0", "gr1", "gr2", "gr3", "gr4", "gr5", "gr6", "gr7", \ + "gr8", "gr9", "gr10", "gr11", "logpsw", "cfp", "sp", "pc", \ + "pr0", "pr1", "pr2", "pr3", "pr4", "pr5", "pr6", "pr7", \ + "pr8", "pr9", "pr10", "pr11", "pr12", "pr13", "pr14", "pr15", \ + "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", \ + "lr8", "lr9", "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", \ + "tr0", "tr1", "tr2", "tr3", "tr4", "tr5", "tr6", "tr7", \ + "tr8", "tr9", "tr10", "tr11", "tr12", "tr13", "tr14", "tr15", \ + "psw", "ksp", "csp"} + +/* 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. */ + +/* pseudo-registers: */ +#define PS_REGNUM 64 /* Contains processor status */ +#define PSW_REGNUM 64 /* Contains current psw, whatever it is.*/ +#define CSP_REGNUM 65 /* address of this control stack frame*/ +#define KSP_REGNUM 66 /* Contains process's Kernel Stack Pointer */ + +#define CFP_REGNUM 13 /* Current data-stack frame ptr */ +#define TR0_REGNUM 48 /* After function call, contains + function result */ + +/* Registers interesting to the machine-independent part of gdb*/ + +#define FP_REGNUM CSP_REGNUM /* Contains address of executing (control) + stack frame */ +#define SP_REGNUM 14 /* Contains address of top of stack -??*/ +#define PC_REGNUM 15 /* Contains program counter */ + +/* Define DO_REGISTERS_INFO() to do machine-specific formatting + of register dumps. */ + +#define DO_REGISTERS_INFO(_regnum) pyr_do_registers_info(_regnum) + +/* need this so we can find the global registers: they never get saved. */ +extern unsigned int global_reg_offset; +extern unsigned int last_frame_offset; +extern unsigned int reg_stack_start; +extern unsigned int reg_stack_end; +extern unsigned int reg_stack_offset; + + +/* Define offsets of registers in the core file (or maybe u area) */ +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ struct user __u; \ + addr = blockend + (regno - 16 ) * 4; \ + if (regno == 67) { \ + printf("\\geting reg 67\\"); \ + addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ + } else if (regno == KSP_REGNUM) { \ + printf("\\geting KSP (reg %d)\\", KSP_REGNUM); \ + addr = (int)(&__u.u_pcb.pcb_ksp) - (int) &__u; \ + } else if (regno == CSP_REGNUM) { \ + printf("\\geting CSP (reg %d\\",CSP_REGNUM); \ + addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ + } else if (regno == 64) { \ + printf("\\geting reg 64\\"); \ + addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ + } else if (regno == PS_REGNUM) \ + addr = blockend - 4; \ + else if (1 && ((16 > regno) && (regno > 11))) \ + addr = last_frame_offset + (4 *(regno+32)); \ + else if (0 && (12 > regno)) \ + addr = global_reg_offset + (4 *regno); \ + else if (16 > regno) \ + addr = global_reg_offset + (4 *regno); \ + else \ + addr = blockend + (regno - 16 ) * 4; \ +} + + + +/* Total amount of space needed to store our copies of the machine's + register state, the array `registers'. */ +#define REGISTER_BYTES (NUM_REGS*4) + +/* the Pyramid has register windows. */ + +#define HAVE_REGISTER_WINDOWS + +/* Is this register part of the register window system? A yes answer + implies that 1) The name of this register will not be the same in + other frames, and 2) This register is automatically "saved" (out + registers shifting into ins counts) upon subroutine calls and thus + there is no need to search more than one stack frame for it. */ + +#define REGISTER_IN_WINDOW_P(regnum) \ + ((regnum) >= 16 && (regnum) < 64) + +/* Index within `registers' of the first byte of the space for + register N. */ + +#define REGISTER_BYTE(N) ((N) * 4) + +/* Number of bytes of storage in the actual machine representation + for register N. On the Pyramid, all regs are 4 bytes. */ + +#define REGISTER_RAW_SIZE(N) 4 + +/* Number of bytes of storage in the program's representation + for register N. On the Pyramid, all regs are 4 bytes. */ + +#define REGISTER_VIRTUAL_SIZE(N) 4 + +/* Largest value REGISTER_RAW_SIZE can have. */ + +#define MAX_REGISTER_RAW_SIZE 4 + +/* Largest value REGISTER_VIRTUAL_SIZE can have. */ + +#define MAX_REGISTER_VIRTUAL_SIZE 4 + +/* Nonzero if register N requires conversion + from raw format to virtual format. */ + +#define REGISTER_CONVERTIBLE(N) 0 + +/* Convert data from raw format for register REGNUM + to virtual format for register REGNUM. */ + +#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \ + bcopy ((FROM), (TO), 4); + +/* Convert data from virtual format for register REGNUM + to raw format for register REGNUM. */ + +#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \ + bcopy ((FROM), (TO), 4); + +/* Return the GDB type object for the "standard" data type + of data in register N. */ + +#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int + +/* FIXME: It seems impossible for both EXTRACT_RETURN_VALUE and + STORE_RETURN_VALUE to be correct. */ + +/* Store the address of the place in which to copy the structure the + subroutine will return. This is called from call_function. */ + +/****FIXME****/ +#define STORE_STRUCT_RETURN(ADDR, SP) \ + { write_register (TR0_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. */ + +/* Note that on a register-windowing machine (eg, Pyr, SPARC), this is + where the value is found after the function call -- ie, it should + correspond to GNU CC's FUNCTION_VALUE rather than FUNCTION_OUTGOING_VALUE.*/ + +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + bcopy (((int *)(REGBUF))+TR0_REGNUM, VALBUF, TYPE_LENGTH (TYPE)) + +/* Write into appropriate registers a function return value + of type TYPE, given in virtual format. */ +/* on pyrs, values are returned in */ + +#define STORE_RETURN_VALUE(TYPE,VALBUF) \ + write_register_bytes (REGISTER_BYTE(TR0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)) + +/* Extract from an array REGBUF containing the (raw) register state + the address in which a function should return its structure value, + as a CORE_ADDR (or an expression that can be used as one). */ +/* FIXME */ +#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ + ( ((int *)(REGBUF)) [TR0_REGNUM]) + +/* Compensate for lack of `vprintf' function. */ +#define vprintf(format, ap) _doprnt (format, ap, stdout) + +/* Describe the pointer in each stack frame to the previous stack frame + (its caller). */ + +#define EXTRA_FRAME_INFO \ + FRAME_ADDR bottom; \ + CORE_ADDR frame_cfp; \ + CORE_ADDR frame_window_addr; + +#define INIT_EXTRA_FRAME_INFO(fci) \ +do { \ + (fci)->frame_window_addr = (fci)->frame; \ + (fci)->bottom = \ + ((fci)->next ? \ + ((fci)->frame == (fci)->next_frame ? \ + (fci)->next->bottom : (fci)->next->frame) : \ + read_register (SP_REGNUM)); \ + (fci)->frame_cfp = \ + read_register (CFP_REGNUM); \ + /***fprintf (stderr, \ + "[[creating new frame for %0x,pc=%0x,csp=%0x]]\n", \ + (fci)->frame, (fci)->pc,(fci)->frame_cfp);*/ \ +} while (0); + +/* FRAME_CHAIN takes a frame's nominal address + and produces the frame's chain-pointer. + + FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address + and produces the nominal address of the caller frame. + + However, if FRAME_CHAIN_VALID returns zero, + it means the given frame is the outermost one and has no caller. + In that case, FRAME_CHAIN_COMBINE is not used. */ + +/* In the case of the pyr, the frame's nominal address is the address + of parameter register 0. The previous frame is found 32 words up. */ + +#define FRAME_CHAIN(thisframe) \ + ( (thisframe) -> frame - CONTROL_STACK_FRAME_SIZE) + +#define FRAME_CHAIN_VALID(chain, thisframe) \ + (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe)))) + + /*((thisframe) >= CONTROL_STACK_ADDR))*/ + +#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain) + +/* Define other aspects of the stack frame. */ + +/* A macro that tells us whether the function invocation represented + by FI does not have a frame on the stack associated with it. If it + does not, FRAMELESS is set to 1, else 0. + + I do not understand what this means on a Pyramid, where functions + *always* have a control-stack frame, but may or may not have a + frame on the data stack. Since GBD uses the value of the + control stack pointer as its "address" of a frame, FRAMELESS + is always 1, so does not need to be defined. */ + + +/* Where is the PC for a specific frame */ + +#define FRAME_SAVED_PC(fi) \ + ((CORE_ADDR) (read_memory_integer ( (fi) -> frame + 60, 4))) + +/* There may be bugs in FRAME_ARGS_ADDRESS and FRAME_LOCALS_ADDRESS; + or there may be bugs in accessing the registers that break + their definitions. + Having the macros expand into functions makes them easier to debug. + When the bug is finally located, the inline macro defintions can + be un-#if 0ed, and frame_args_addr and frame_locals_address can + be deleted from pyr-dep.c */ + +/* If the argument is on the stack, it will be here. */ +#define FRAME_ARGS_ADDRESS(fi) \ + frame_args_addr(fi) + +#define FRAME_LOCALS_ADDRESS(fi) \ + frame_locals_address(fi) + +/* The following definitions doesn't seem to work. + I don't understand why. */ +#if 0 +#define FRAME_ARGS_ADDRESS(fi) \ + /*(FRAME_FP(fi) + (13*4))*/ (read_register (CFP_REGNUM)) + +#define FRAME_LOCALS_ADDRESS(fi) \ + ((fi)->frame +(16*4)) + +#endif /* 0 */ + +/* Return number of args passed to a frame. + Can return -1, meaning no way to tell. */ + +#define FRAME_NUM_ARGS(val, fi) (val = -1) + +/* 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. + 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. + + Note that on register window machines, we are currently making the + assumption that window registers are being saved somewhere in the + frame in which they are being used. If they are stored in an + inferior frame, find_saved_register will break. + + On pyrs, frames of window registers are stored contiguously on a + separate stack. All window registers are always stored. + The pc and psw (gr15 and gr14) are also always saved: the call + insn saves them in pr15 and pr14 of the new frame (tr15,tr14 of the + old frame). + The data-stack frame pointer (CFP) is only saved in functions which + allocate a (data)stack frame (with "adsf"). We detect them by + looking at the first insn of the procedure. + + Other non-window registers (gr0-gr11) are never saved. Pyramid's C + compiler and gcc currently ignore them, so it's not an issue. */ + +#define FRAME_FIND_SAVED_REGS(fi_p, frame_saved_regs) \ +{ register int regnum; \ + register CORE_ADDR pc; \ + register CORE_ADDR fn_start_pc; \ + register int first_insn; \ + register CORE_ADDR prev_cf_addr; \ + register int window_ptr; \ + FRAME fid = FRAME_INFO_ID (fi_p); \ + if (!fid) fatal ("Bad frame info struct in FRAME_FIND_SAVED_REGS"); \ + bzero (&(frame_saved_regs), sizeof (frame_saved_regs)); \ + \ + window_ptr = prev_cf_addr = FRAME_FP(fi_p); \ + \ + for (regnum = 16 ; regnum < 64; regnum++,window_ptr+=4) \ + { \ + (frame_saved_regs).regs[regnum] = window_ptr; \ + } \ + \ + /* In each window, psw, and pc are "saved" in tr14,tr15. */ \ + /*** psw is sometimes saved in gr12 (so sez <sys/pcb.h>) */ \ + (frame_saved_regs).regs[PS_REGNUM] = FRAME_FP(fi_p) + (14*4); \ + \ +/*(frame_saved_regs).regs[PC_REGNUM] = (frame_saved_regs).regs[31];*/ \ + (frame_saved_regs).regs[PC_REGNUM] = FRAME_FP(fi_p) + ((15+32)*4); \ + \ + /* Functions that allocate a frame save sp *where*? */ \ +/*first_insn = read_memory_integer (get_pc_function_start ((fi_p)->pc),4); */ \ + \ + fn_start_pc = (get_pc_function_start ((fi_p)->pc)); \ + first_insn = read_memory_integer(fn_start_pc, 4); \ + \ + if (0x08 == ((first_insn >> 20) &0x0ff)) { \ + /* NB: because WINDOW_REGISTER_P(cfp) is false, a saved cfp \ + in this frame is only visible in this frame's callers. \ + That means the cfp we mark saved is my caller's cfp, ie pr13. \ + I don't understand why we don't have to do that for pc, too. */ \ + \ + (frame_saved_regs).regs[CFP_REGNUM] = FRAME_FP(fi_p)+(13*4); \ + \ + (frame_saved_regs).regs[SP_REGNUM] = \ + read_memory_integer (FRAME_FP(fi_p)+((13+32)*4),4); \ + } \ + \ +/* \ + *(frame_saved_regs).regs[CFP_REGNUM] = (frame_saved_regs).regs[61]; \ + * (frame_saved_regs).regs[SP_REGNUM] = \ + * read_memory_integer (FRAME_FP(fi_p)+((13+32)*4),4); \ + */ \ + \ + (frame_saved_regs).regs[CSP_REGNUM] = prev_cf_addr; \ +} + +/* Things needed for making the inferior call functions. */ + +/* These are all lies. These macro definitions are appropriate for a + SPARC. On a pyramid, pushing a dummy frame will + surely involve writing the control stack pointer, + then saving the pc. This requires a privileged instruction. + Maybe one day Pyramid can be persuaded to add a syscall to do this. + Until then, we are out of luck. */ + +/* Push an empty stack frame, to record the current PC, etc. */ + +#define PUSH_DUMMY_FRAME \ +{ register CORE_ADDR sp = read_register (SP_REGNUM);\ + register int regnum; \ + sp = push_word (sp, 0); /* arglist */ \ + for (regnum = 11; regnum >= 0; regnum--) \ + sp = push_word (sp, read_register (regnum)); \ + sp = push_word (sp, read_register (PC_REGNUM)); \ + sp = push_word (sp, read_register (FP_REGNUM)); \ +/* sp = push_word (sp, read_register (AP_REGNUM));*/ \ + sp = push_word (sp, (read_register (PS_REGNUM) & 0xffef) \ + + 0x2fff0000); \ + sp = push_word (sp, 0); \ + write_register (SP_REGNUM, sp); \ + write_register (FP_REGNUM, sp); \ +/* write_register (AP_REGNUM, sp + 17 * sizeof (int));*/ } + +/* Discard from the stack the innermost frame, restoring all registers. */ + +#define POP_FRAME \ +{ register CORE_ADDR fp = read_register (FP_REGNUM); \ + register int regnum; \ + register int regmask = read_memory_integer (fp + 4, 4); \ + write_register (PS_REGNUM, \ + (regmask & 0xffff) \ + | (read_register (PS_REGNUM) & 0xffff0000)); \ + write_register (PC_REGNUM, read_memory_integer (fp + 16, 4)); \ + write_register (FP_REGNUM, read_memory_integer (fp + 12, 4)); \ +/* write_register (AP_REGNUM, read_memory_integer (fp + 8, 4));*/ \ + fp += 16; \ + for (regnum = 0; regnum < 12; regnum++) \ + if (regmask & (0x10000 << regnum)) \ + write_register (regnum, read_memory_integer (fp += 4, 4)); \ + fp = fp + 4 + ((regmask >> 30) & 3); \ + if (regmask & 0x20000000) \ + { regnum = read_memory_integer (fp, 4); \ + fp += (regnum + 1) * 4; } \ + write_register (SP_REGNUM, fp); \ + set_current_frame (read_register (FP_REGNUM)); } + +/* This sequence of words is the instructions + calls #69, @#32323232 + bpt + Note this is 8 bytes. */ + +#define CALL_DUMMY {0x329f69fb, 0x03323232} + +#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */ + +/* 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, type) \ +{ *((char *) dummyname + 1) = nargs; \ + *(int *)((char *) dummyname + 3) = fun; } + +/* Interface definitions for kernel debugger KDB. */ + +/* I have *no idea* how to debug OSx kernels, so this + is flushed, possible forever. */ |