diff options
Diffstat (limited to 'gdb/config')
| -rw-r--r-- | gdb/config/a29k/tm-a29k.h | 5 | ||||
| -rw-r--r-- | gdb/config/m68k/xm-3b1.h | 2 | ||||
| -rw-r--r-- | gdb/config/pyr/pyramid.mh | 16 | ||||
| -rw-r--r-- | gdb/config/pyr/pyramid.mt | 6 | ||||
| -rw-r--r-- | gdb/config/pyr/tm-pyr.h | 966 | ||||
| -rw-r--r-- | gdb/config/pyr/xm-pyr.h | 184 |
6 files changed, 590 insertions, 589 deletions
diff --git a/gdb/config/a29k/tm-a29k.h b/gdb/config/a29k/tm-a29k.h index 8fae020..8eb476e 100644 --- a/gdb/config/a29k/tm-a29k.h +++ b/gdb/config/a29k/tm-a29k.h @@ -310,6 +310,7 @@ extern use_struct_convention_fn a29k_use_struct_convention; TYPE_LENGTH (TYPE)); \ } +/* *INDENT-OFF* */ /* The a29k user's guide documents well what the stacks look like. But what isn't so clear there is how this interracts with the symbols, or with GDB. @@ -410,6 +411,7 @@ extern use_struct_convention_fn a29k_use_struct_convention; computed by adding msize to the saved_msp of the next frame. * msize is in the frame cache only for high C's sake. */ +/* *INDENT-ON* */ void read_register_stack (); long read_register_stack_integer (); @@ -513,7 +515,7 @@ void a29k_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADD a29k_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) /* Call function stuff. */ - +/* *INDENT-OFF* */ /* The dummy frame looks like this (see also the general frame picture above): @@ -563,6 +565,7 @@ void a29k_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADD retaddr_sproc: Contains the PC at the time we call the function. set by PUSH_DUMMY_FRAME and read by POP_FRAME. retaddr_dummy: This points to a breakpoint instruction in the dummy. */ +/* *INDENT-ON* */ /* Rsize for dummy frame, in bytes. */ diff --git a/gdb/config/m68k/xm-3b1.h b/gdb/config/m68k/xm-3b1.h index d1cc7f1..ad4b5b7 100644 --- a/gdb/config/m68k/xm-3b1.h +++ b/gdb/config/m68k/xm-3b1.h @@ -81,5 +81,3 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ { asm ("subil $8,28(sp)"); \ asm ("movem (sp),$ 0xffff"); \ asm ("rte"); } - -#endif diff --git a/gdb/config/pyr/pyramid.mh b/gdb/config/pyr/pyramid.mh index cd25e57..d7ebc37 100644 --- a/gdb/config/pyr/pyramid.mh +++ b/gdb/config/pyr/pyramid.mh @@ -1,8 +1,8 @@ -# Host: Pyramid under OSx 4.0 (4.2bsd). - -#msg If you don't compile GDB with GCC, you'll need to add -#msg ALLOCA=alloca.o and ALLOCA1=alloca.o to the Makefile. -#msg - -XDEPFILES= pyr-xdep.o infptrace.o inftarg.o fork-child.o -XM_FILE= xm-pyr.h +# OBSOLETE # Host: Pyramid under OSx 4.0 (4.2bsd). +# OBSOLETE +# OBSOLETE #msg If you don't compile GDB with GCC, you'll need to add +# OBSOLETE #msg ALLOCA=alloca.o and ALLOCA1=alloca.o to the Makefile.# +# OBSOLETE msg +# OBSOLETE +# OBSOLETE XDEPFILES= pyr-xdep.o infptrace.o inftarg.o fork-child.o +# OBSOLETE XM_FILE= xm-pyr.h diff --git a/gdb/config/pyr/pyramid.mt b/gdb/config/pyr/pyramid.mt index 48f9557..342a77d 100644 --- a/gdb/config/pyr/pyramid.mt +++ b/gdb/config/pyr/pyramid.mt @@ -1,3 +1,3 @@ -# Target: Pyramid under OSx 4.0 (4.2bsd). -TDEPFILES= pyr-tdep.o -TM_FILE= tm-pyr.h +# OBSOLETE # Target: Pyramid under OSx 4.0 (4.2bsd). +# OBSOLETE TDEPFILES= pyr-tdep.o +# OBSOLETE TM_FILE= tm-pyr.h diff --git a/gdb/config/pyr/tm-pyr.h b/gdb/config/pyr/tm-pyr.h index b1deeed..e28d6fb 100644 --- a/gdb/config/pyr/tm-pyr.h +++ b/gdb/config/pyr/tm-pyr.h @@ -1,483 +1,483 @@ -/* Definitions to make GDB run on a Pyramid under OSx 4.0 (4.2bsd). - Copyright 1988, 1989, 1991, 1993 Free Software Foundation, Inc. - -This file is part of GDB. - -This program 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 2 of the License, or -(at your option) any later version. - -This program 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 this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define TARGET_BYTE_ORDER BIG_ENDIAN - -/* 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 corefile.c there is an extra segment. */ -#define REG_STACK_SEGMENT - -/* Floating point is IEEE compatible on most Pyramid hardware - (Older processors do not have IEEE NaNs). */ -#define IEEE_FLOAT - -/* 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) (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. */ - -#define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame) - -/* 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(lhs,rhs) ((lhs) < (rhs)) - -/* Stack must be aligned on 32-bit boundaries when synthesizing - function calls. */ - -#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 - -/* 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 */ -/* 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, fp) pyr_do_registers_info(_regnum, fp) - -/* 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; - -/* 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 - -/* 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) \ - memcpy (VALBUF, ((int *)(REGBUF))+TR0_REGNUM, 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]) - - -/* Describe the pointer in each stack frame to the previous stack frame - (its caller). */ - -#define EXTRA_FRAME_INFO \ - CORE_ADDR bottom; \ - CORE_ADDR frame_cfp; \ - CORE_ADDR frame_window_addr; - -/* The bottom field is misnamed, since it might imply that memory from - bottom to frame contains this frame. That need not be true if - stack frames are allocated in different segments (e.g. some on a - stack, some on a heap in the data segment). */ - -#define INIT_EXTRA_FRAME_INFO(fromleaf, 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. */ - -/* 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) - - /*((thisframe) >= CONTROL_STACK_ADDR))*/ - -/* 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(fi) (-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; \ - if (!fi_p) fatal ("Bad frame info struct in FRAME_FIND_SAVED_REGS"); \ - memset (&(frame_saved_regs), '\0', 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. */ -#if 0 -/* 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, args, type, gcc_p) \ -{ *((char *) dummyname + 1) = nargs; \ - *(int *)((char *) dummyname + 3) = fun; } -#endif /* 0 */ - -#define POP_FRAME \ - { error ("The return command is not supported on this machine."); } +/* OBSOLETE /* Definitions to make GDB run on a Pyramid under OSx 4.0 (4.2bsd). */ +/* OBSOLETE Copyright 1988, 1989, 1991, 1993 Free Software Foundation, Inc. */ +/* OBSOLETE */ +/* OBSOLETE This file is part of GDB. */ +/* OBSOLETE */ +/* OBSOLETE This program is free software; you can redistribute it and/or modify */ +/* OBSOLETE it under the terms of the GNU General Public License as published by */ +/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */ +/* OBSOLETE (at your option) any later version. */ +/* OBSOLETE */ +/* OBSOLETE This program is distributed in the hope that it will be useful, */ +/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */ +/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ +/* OBSOLETE GNU General Public License for more details. */ +/* OBSOLETE */ +/* OBSOLETE You should have received a copy of the GNU General Public License */ +/* OBSOLETE along with this program; if not, write to the Free Software */ +/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define TARGET_BYTE_ORDER BIG_ENDIAN */ +/* OBSOLETE */ +/* OBSOLETE /* Traditional Unix virtual address spaces have thre regions: text, */ +/* OBSOLETE data and stack. The text, initialised data, and uninitialised data */ +/* OBSOLETE are represented in separate segments of the a.out file. */ +/* OBSOLETE When a process dumps core, the data and stack regions are written */ +/* OBSOLETE to a core file. This gives a debugger enough information to */ +/* OBSOLETE reconstruct (and debug) the virtual address space at the time of */ +/* OBSOLETE the coredump. */ +/* OBSOLETE Pyramids have an distinct fourth region of the virtual address */ +/* OBSOLETE space, in which the contents of the windowed registers are stacked */ +/* OBSOLETE in fixed-size frames. Pyramid refer to this region as the control */ +/* OBSOLETE stack. Each call (or trap) automatically allocates a new register */ +/* OBSOLETE frame; each return deallocates the current frame and restores the */ +/* OBSOLETE windowed registers to their values before the call. */ +/* OBSOLETE */ +/* OBSOLETE When dumping core, the control stack is written to a core files as */ +/* OBSOLETE a third segment. The core-handling functions need to know to deal */ +/* OBSOLETE with it. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Tell corefile.c there is an extra segment. *x/ */ +/* OBSOLETE #define REG_STACK_SEGMENT */ +/* OBSOLETE */ +/* OBSOLETE /* Floating point is IEEE compatible on most Pyramid hardware */ +/* OBSOLETE (Older processors do not have IEEE NaNs). *x/ */ +/* OBSOLETE #define IEEE_FLOAT */ +/* OBSOLETE */ +/* OBSOLETE /* Offset from address of function to start of its code. */ +/* OBSOLETE Zero on most machines. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FUNCTION_START_OFFSET 0 */ +/* OBSOLETE */ +/* OBSOLETE /* Advance PC across any function entry prologue instructions */ +/* OBSOLETE to reach some "real" code. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* FIXME -- do we want to skip insns to allocate the local frame? */ +/* OBSOLETE If so, what do they look like? */ +/* OBSOLETE This is becoming harder, since tege@sics.SE wants to change */ +/* OBSOLETE gcc to not output a prologue when no frame is needed. *x/ */ +/* OBSOLETE #define SKIP_PROLOGUE(pc) (pc) */ +/* OBSOLETE */ +/* OBSOLETE */ +/* OBSOLETE /* Immediately after a function call, return the saved pc. */ +/* OBSOLETE Can't always go through the frames for this because on some machines */ +/* OBSOLETE the new frame is not set up until the new function executes */ +/* OBSOLETE some instructions. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame) */ +/* OBSOLETE */ +/* OBSOLETE /* Address of end of stack space. *x/ */ +/* OBSOLETE /* This seems to be right for the 90x comp.vuw.ac.nz. */ +/* OBSOLETE The correct value at any site may be a function of the configured */ +/* OBSOLETE maximum control stack depth. If so, I don't know where the */ +/* OBSOLETE control-stack depth is configured, so I can't #include it here. *x/ */ +/* OBSOLETE #define STACK_END_ADDR (0xc00cc000) */ +/* OBSOLETE */ +/* OBSOLETE /* Register window stack (Control stack) stack definitions */ +/* OBSOLETE - Address of beginning of control stack. */ +/* OBSOLETE - size of control stack frame */ +/* OBSOLETE (Note that since crts0 is usually the first function called, */ +/* OBSOLETE main()'s control stack is one frame (0x80 bytes) beyond this value. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define CONTROL_STACK_ADDR (0xc00cd000) */ +/* OBSOLETE */ +/* OBSOLETE /* Bytes in a register window -- 16 parameter regs, 16 local regs */ +/* OBSOLETE for each call, is 32 regs * 4 bytes *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define CONTROL_STACK_FRAME_SIZE (32*4) */ +/* OBSOLETE */ +/* OBSOLETE /* FIXME. On a pyr, Data Stack grows downward; control stack goes upwards. */ +/* OBSOLETE Which direction should we use for INNER_THAN, PC_INNER_THAN ?? *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) */ +/* OBSOLETE */ +/* OBSOLETE /* Stack must be aligned on 32-bit boundaries when synthesizing */ +/* OBSOLETE function calls. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define STACK_ALIGN(ADDR) (((ADDR) + 3) & -4) */ +/* OBSOLETE */ +/* OBSOLETE /* Sequence of bytes for breakpoint instruction. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define BREAKPOINT {0xf0, 00, 00, 00} */ +/* OBSOLETE */ +/* OBSOLETE /* Amount PC must be decremented by after a breakpoint. */ +/* OBSOLETE This is often the number of bytes in BREAKPOINT */ +/* OBSOLETE but not always. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define DECR_PC_AFTER_BREAK 0 */ +/* OBSOLETE */ +/* OBSOLETE /* Say how long (ordinary) registers are. This is a piece of bogosity */ +/* OBSOLETE used in push_word and a few other places; REGISTER_RAW_SIZE is the */ +/* OBSOLETE real way to know how big a register is. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_SIZE 4 */ +/* OBSOLETE */ +/* OBSOLETE /* Number of machine registers *x/ */ +/* OBSOLETE /* pyramids have 64, plus one for the PSW; plus perhaps one more for the */ +/* OBSOLETE kernel stack pointer (ksp) and control-stack pointer (CSP) *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define NUM_REGS 67 */ +/* OBSOLETE */ +/* OBSOLETE /* Initializer for an array of names of registers. */ +/* OBSOLETE There should be NUM_REGS strings in this initializer. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_NAMES \ */ +/* OBSOLETE {"gr0", "gr1", "gr2", "gr3", "gr4", "gr5", "gr6", "gr7", \ */ +/* OBSOLETE "gr8", "gr9", "gr10", "gr11", "logpsw", "cfp", "sp", "pc", \ */ +/* OBSOLETE "pr0", "pr1", "pr2", "pr3", "pr4", "pr5", "pr6", "pr7", \ */ +/* OBSOLETE "pr8", "pr9", "pr10", "pr11", "pr12", "pr13", "pr14", "pr15", \ */ +/* OBSOLETE "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", \ */ +/* OBSOLETE "lr8", "lr9", "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", \ */ +/* OBSOLETE "tr0", "tr1", "tr2", "tr3", "tr4", "tr5", "tr6", "tr7", \ */ +/* OBSOLETE "tr8", "tr9", "tr10", "tr11", "tr12", "tr13", "tr14", "tr15", \ */ +/* OBSOLETE "psw", "ksp", "csp"} */ +/* OBSOLETE */ +/* OBSOLETE /* Register numbers of various important registers. */ +/* OBSOLETE Note that some of these values are "real" register numbers, */ +/* OBSOLETE and correspond to the general registers of the machine, */ +/* OBSOLETE and some are "phony" register numbers which are too large */ +/* OBSOLETE to be actual register numbers as far as the user is concerned */ +/* OBSOLETE but do serve to get the desired values when passed to read_register. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* pseudo-registers: *x/ */ +/* OBSOLETE #define PS_REGNUM 64 /* Contains processor status *x/ */ +/* OBSOLETE #define PSW_REGNUM 64 /* Contains current psw, whatever it is.*x/ */ +/* OBSOLETE #define CSP_REGNUM 65 /* address of this control stack frame*x/ */ +/* OBSOLETE #define KSP_REGNUM 66 /* Contains process's Kernel Stack Pointer *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define CFP_REGNUM 13 /* Current data-stack frame ptr *x/ */ +/* OBSOLETE #define TR0_REGNUM 48 /* After function call, contains */ +/* OBSOLETE function result *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Registers interesting to the machine-independent part of gdb*x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FP_REGNUM CSP_REGNUM /* Contains address of executing (control) */ +/* OBSOLETE stack frame *x/ */ +/* OBSOLETE #define SP_REGNUM 14 /* Contains address of top of stack -??*x/ */ +/* OBSOLETE #define PC_REGNUM 15 /* Contains program counter *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Define DO_REGISTERS_INFO() to do machine-specific formatting */ +/* OBSOLETE of register dumps. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define DO_REGISTERS_INFO(_regnum, fp) pyr_do_registers_info(_regnum, fp) */ +/* OBSOLETE */ +/* OBSOLETE /* need this so we can find the global registers: they never get saved. *x/ */ +/* OBSOLETE extern unsigned int global_reg_offset; */ +/* OBSOLETE extern unsigned int last_frame_offset; */ +/* OBSOLETE */ +/* OBSOLETE /* Total amount of space needed to store our copies of the machine's */ +/* OBSOLETE register state, the array `registers'. *x/ */ +/* OBSOLETE #define REGISTER_BYTES (NUM_REGS*4) */ +/* OBSOLETE */ +/* OBSOLETE /* the Pyramid has register windows. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define HAVE_REGISTER_WINDOWS */ +/* OBSOLETE */ +/* OBSOLETE /* Is this register part of the register window system? A yes answer */ +/* OBSOLETE implies that 1) The name of this register will not be the same in */ +/* OBSOLETE other frames, and 2) This register is automatically "saved" (out */ +/* OBSOLETE registers shifting into ins counts) upon subroutine calls and thus */ +/* OBSOLETE there is no need to search more than one stack frame for it. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_IN_WINDOW_P(regnum) \ */ +/* OBSOLETE ((regnum) >= 16 && (regnum) < 64) */ +/* OBSOLETE */ +/* OBSOLETE /* Index within `registers' of the first byte of the space for */ +/* OBSOLETE register N. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_BYTE(N) ((N) * 4) */ +/* OBSOLETE */ +/* OBSOLETE /* Number of bytes of storage in the actual machine representation */ +/* OBSOLETE for register N. On the Pyramid, all regs are 4 bytes. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_RAW_SIZE(N) 4 */ +/* OBSOLETE */ +/* OBSOLETE /* Number of bytes of storage in the program's representation */ +/* OBSOLETE for register N. On the Pyramid, all regs are 4 bytes. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_VIRTUAL_SIZE(N) 4 */ +/* OBSOLETE */ +/* OBSOLETE /* Largest value REGISTER_RAW_SIZE can have. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define MAX_REGISTER_RAW_SIZE 4 */ +/* OBSOLETE */ +/* OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE 4 */ +/* OBSOLETE */ +/* OBSOLETE /* Return the GDB type object for the "standard" data type */ +/* OBSOLETE of data in register N. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) builtin_type_int */ +/* OBSOLETE */ +/* OBSOLETE /* FIXME: It seems impossible for both EXTRACT_RETURN_VALUE and */ +/* OBSOLETE STORE_RETURN_VALUE to be correct. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Store the address of the place in which to copy the structure the */ +/* OBSOLETE subroutine will return. This is called from call_function. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /****FIXME****x/ */ +/* OBSOLETE #define STORE_STRUCT_RETURN(ADDR, SP) \ */ +/* OBSOLETE { write_register (TR0_REGNUM, (ADDR)); } */ +/* OBSOLETE */ +/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */ +/* OBSOLETE a function return value of type TYPE, and copy that, in virtual format, */ +/* OBSOLETE into VALBUF. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Note that on a register-windowing machine (eg, Pyr, SPARC), this is */ +/* OBSOLETE where the value is found after the function call -- ie, it should */ +/* OBSOLETE correspond to GNU CC's FUNCTION_VALUE rather than FUNCTION_OUTGOING_VALUE.*x/ */ +/* OBSOLETE */ +/* OBSOLETE #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ */ +/* OBSOLETE memcpy (VALBUF, ((int *)(REGBUF))+TR0_REGNUM, TYPE_LENGTH (TYPE)) */ +/* OBSOLETE */ +/* OBSOLETE /* Write into appropriate registers a function return value */ +/* OBSOLETE of type TYPE, given in virtual format. *x/ */ +/* OBSOLETE /* on pyrs, values are returned in *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ */ +/* OBSOLETE write_register_bytes (REGISTER_BYTE(TR0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)) */ +/* OBSOLETE */ +/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */ +/* OBSOLETE the address in which a function should return its structure value, */ +/* OBSOLETE as a CORE_ADDR (or an expression that can be used as one). *x/ */ +/* OBSOLETE /* FIXME *x/ */ +/* OBSOLETE #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ */ +/* OBSOLETE ( ((int *)(REGBUF)) [TR0_REGNUM]) */ +/* OBSOLETE */ +/* OBSOLETE */ +/* OBSOLETE /* Describe the pointer in each stack frame to the previous stack frame */ +/* OBSOLETE (its caller). *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define EXTRA_FRAME_INFO \ */ +/* OBSOLETE CORE_ADDR bottom; \ */ +/* OBSOLETE CORE_ADDR frame_cfp; \ */ +/* OBSOLETE CORE_ADDR frame_window_addr; */ +/* OBSOLETE */ +/* OBSOLETE /* The bottom field is misnamed, since it might imply that memory from */ +/* OBSOLETE bottom to frame contains this frame. That need not be true if */ +/* OBSOLETE stack frames are allocated in different segments (e.g. some on a */ +/* OBSOLETE stack, some on a heap in the data segment). *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \ */ +/* OBSOLETE do { \ */ +/* OBSOLETE (fci)->frame_window_addr = (fci)->frame; \ */ +/* OBSOLETE (fci)->bottom = \ */ +/* OBSOLETE ((fci)->next ? \ */ +/* OBSOLETE ((fci)->frame == (fci)->next->frame ? \ */ +/* OBSOLETE (fci)->next->bottom : (fci)->next->frame) : \ */ +/* OBSOLETE read_register (SP_REGNUM)); \ */ +/* OBSOLETE (fci)->frame_cfp = \ */ +/* OBSOLETE read_register (CFP_REGNUM); \ */ +/* OBSOLETE /***fprintf (stderr, \ */ +/* OBSOLETE "[[creating new frame for %0x,pc=%0x,csp=%0x]]\n", \ */ +/* OBSOLETE (fci)->frame, (fci)->pc,(fci)->frame_cfp);*x/ \ */ +/* OBSOLETE } while (0); */ +/* OBSOLETE */ +/* OBSOLETE /* FRAME_CHAIN takes a frame's nominal address */ +/* OBSOLETE and produces the frame's chain-pointer. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* In the case of the pyr, the frame's nominal address is the address */ +/* OBSOLETE of parameter register 0. The previous frame is found 32 words up. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_CHAIN(thisframe) \ */ +/* OBSOLETE ( (thisframe) -> frame - CONTROL_STACK_FRAME_SIZE) */ +/* OBSOLETE */ +/* OBSOLETE /*((thisframe) >= CONTROL_STACK_ADDR))*x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Define other aspects of the stack frame. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* A macro that tells us whether the function invocation represented */ +/* OBSOLETE by FI does not have a frame on the stack associated with it. If it */ +/* OBSOLETE does not, FRAMELESS is set to 1, else 0. */ +/* OBSOLETE */ +/* OBSOLETE I do not understand what this means on a Pyramid, where functions */ +/* OBSOLETE *always* have a control-stack frame, but may or may not have a */ +/* OBSOLETE frame on the data stack. Since GBD uses the value of the */ +/* OBSOLETE control stack pointer as its "address" of a frame, FRAMELESS */ +/* OBSOLETE is always 1, so does not need to be defined. *x/ */ +/* OBSOLETE */ +/* OBSOLETE */ +/* OBSOLETE /* Where is the PC for a specific frame *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_SAVED_PC(fi) \ */ +/* OBSOLETE ((CORE_ADDR) (read_memory_integer ( (fi) -> frame + 60, 4))) */ +/* OBSOLETE */ +/* OBSOLETE /* There may be bugs in FRAME_ARGS_ADDRESS and FRAME_LOCALS_ADDRESS; */ +/* OBSOLETE or there may be bugs in accessing the registers that break */ +/* OBSOLETE their definitions. */ +/* OBSOLETE Having the macros expand into functions makes them easier to debug. */ +/* OBSOLETE When the bug is finally located, the inline macro defintions can */ +/* OBSOLETE be un-#if 0ed, and frame_args_addr and frame_locals_address can */ +/* OBSOLETE be deleted from pyr-dep.c *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* If the argument is on the stack, it will be here. *x/ */ +/* OBSOLETE #define FRAME_ARGS_ADDRESS(fi) \ */ +/* OBSOLETE frame_args_addr(fi) */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) \ */ +/* OBSOLETE frame_locals_address(fi) */ +/* OBSOLETE */ +/* OBSOLETE /* The following definitions doesn't seem to work. */ +/* OBSOLETE I don't understand why. *x/ */ +/* OBSOLETE #if 0 */ +/* OBSOLETE #define FRAME_ARGS_ADDRESS(fi) \ */ +/* OBSOLETE /*(FRAME_FP(fi) + (13*4))*x/ (read_register (CFP_REGNUM)) */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) \ */ +/* OBSOLETE ((fi)->frame +(16*4)) */ +/* OBSOLETE */ +/* OBSOLETE #endif /* 0 *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Return number of args passed to a frame. */ +/* OBSOLETE Can return -1, meaning no way to tell. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_NUM_ARGS(fi) (-1) */ +/* OBSOLETE */ +/* OBSOLETE /* Return number of bytes at start of arglist that are not really args. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_ARGS_SKIP 0 */ +/* OBSOLETE */ +/* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, */ +/* OBSOLETE the addresses of the saved registers of frame described by FRAME_INFO. */ +/* OBSOLETE This includes special registers such as pc and fp saved in special */ +/* OBSOLETE ways in the stack frame. sp is even more special: */ +/* OBSOLETE the address we return for it IS the sp for the next frame. */ +/* OBSOLETE */ +/* OBSOLETE Note that on register window machines, we are currently making the */ +/* OBSOLETE assumption that window registers are being saved somewhere in the */ +/* OBSOLETE frame in which they are being used. If they are stored in an */ +/* OBSOLETE inferior frame, find_saved_register will break. */ +/* OBSOLETE */ +/* OBSOLETE On pyrs, frames of window registers are stored contiguously on a */ +/* OBSOLETE separate stack. All window registers are always stored. */ +/* OBSOLETE The pc and psw (gr15 and gr14) are also always saved: the call */ +/* OBSOLETE insn saves them in pr15 and pr14 of the new frame (tr15,tr14 of the */ +/* OBSOLETE old frame). */ +/* OBSOLETE The data-stack frame pointer (CFP) is only saved in functions which */ +/* OBSOLETE allocate a (data)stack frame (with "adsf"). We detect them by */ +/* OBSOLETE looking at the first insn of the procedure. */ +/* OBSOLETE */ +/* OBSOLETE Other non-window registers (gr0-gr11) are never saved. Pyramid's C */ +/* OBSOLETE compiler and gcc currently ignore them, so it's not an issue. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FRAME_FIND_SAVED_REGS(fi_p, frame_saved_regs) \ */ +/* OBSOLETE { register int regnum; \ */ +/* OBSOLETE register CORE_ADDR pc; \ */ +/* OBSOLETE register CORE_ADDR fn_start_pc; \ */ +/* OBSOLETE register int first_insn; \ */ +/* OBSOLETE register CORE_ADDR prev_cf_addr; \ */ +/* OBSOLETE register int window_ptr; \ */ +/* OBSOLETE if (!fi_p) fatal ("Bad frame info struct in FRAME_FIND_SAVED_REGS"); \ */ +/* OBSOLETE memset (&(frame_saved_regs), '\0', sizeof (frame_saved_regs)); \ */ +/* OBSOLETE \ */ +/* OBSOLETE window_ptr = prev_cf_addr = FRAME_FP(fi_p); \ */ +/* OBSOLETE \ */ +/* OBSOLETE for (regnum = 16 ; regnum < 64; regnum++,window_ptr+=4) \ */ +/* OBSOLETE { \ */ +/* OBSOLETE (frame_saved_regs).regs[regnum] = window_ptr; \ */ +/* OBSOLETE } \ */ +/* OBSOLETE \ */ +/* OBSOLETE /* In each window, psw, and pc are "saved" in tr14,tr15. *x/ \ */ +/* OBSOLETE /*** psw is sometimes saved in gr12 (so sez <sys/pcb.h>) *x/ \ */ +/* OBSOLETE (frame_saved_regs).regs[PS_REGNUM] = FRAME_FP(fi_p) + (14*4); \ */ +/* OBSOLETE \ */ +/* OBSOLETE /*(frame_saved_regs).regs[PC_REGNUM] = (frame_saved_regs).regs[31];*x/ \ */ +/* OBSOLETE (frame_saved_regs).regs[PC_REGNUM] = FRAME_FP(fi_p) + ((15+32)*4); \ */ +/* OBSOLETE \ */ +/* OBSOLETE /* Functions that allocate a frame save sp *where*? *x/ \ */ +/* OBSOLETE /*first_insn = read_memory_integer (get_pc_function_start ((fi_p)->pc),4); *x/ \ */ +/* OBSOLETE \ */ +/* OBSOLETE fn_start_pc = (get_pc_function_start ((fi_p)->pc)); \ */ +/* OBSOLETE first_insn = read_memory_integer(fn_start_pc, 4); \ */ +/* OBSOLETE \ */ +/* OBSOLETE if (0x08 == ((first_insn >> 20) &0x0ff)) { \ */ +/* OBSOLETE /* NB: because WINDOW_REGISTER_P(cfp) is false, a saved cfp \ */ +/* OBSOLETE in this frame is only visible in this frame's callers. \ */ +/* OBSOLETE That means the cfp we mark saved is my caller's cfp, ie pr13. \ */ +/* OBSOLETE I don't understand why we don't have to do that for pc, too. *x/ \ */ +/* OBSOLETE \ */ +/* OBSOLETE (frame_saved_regs).regs[CFP_REGNUM] = FRAME_FP(fi_p)+(13*4); \ */ +/* OBSOLETE \ */ +/* OBSOLETE (frame_saved_regs).regs[SP_REGNUM] = \ */ +/* OBSOLETE read_memory_integer (FRAME_FP(fi_p)+((13+32)*4),4); \ */ +/* OBSOLETE } \ */ +/* OBSOLETE \ */ +/* OBSOLETE /* \ */ +/* OBSOLETE *(frame_saved_regs).regs[CFP_REGNUM] = (frame_saved_regs).regs[61]; \ */ +/* OBSOLETE * (frame_saved_regs).regs[SP_REGNUM] = \ */ +/* OBSOLETE * read_memory_integer (FRAME_FP(fi_p)+((13+32)*4),4); \ */ +/* OBSOLETE *x/ \ */ +/* OBSOLETE \ */ +/* OBSOLETE (frame_saved_regs).regs[CSP_REGNUM] = prev_cf_addr; \ */ +/* OBSOLETE } */ +/* OBSOLETE */ +/* OBSOLETE /* Things needed for making the inferior call functions. *x/ */ +/* OBSOLETE #if 0 */ +/* OBSOLETE /* These are all lies. These macro definitions are appropriate for a */ +/* OBSOLETE SPARC. On a pyramid, pushing a dummy frame will */ +/* OBSOLETE surely involve writing the control stack pointer, */ +/* OBSOLETE then saving the pc. This requires a privileged instruction. */ +/* OBSOLETE Maybe one day Pyramid can be persuaded to add a syscall to do this. */ +/* OBSOLETE Until then, we are out of luck. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Push an empty stack frame, to record the current PC, etc. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define PUSH_DUMMY_FRAME \ */ +/* OBSOLETE { register CORE_ADDR sp = read_register (SP_REGNUM);\ */ +/* OBSOLETE register int regnum; \ */ +/* OBSOLETE sp = push_word (sp, 0); /* arglist *x/ \ */ +/* OBSOLETE for (regnum = 11; regnum >= 0; regnum--) \ */ +/* OBSOLETE sp = push_word (sp, read_register (regnum)); \ */ +/* OBSOLETE sp = push_word (sp, read_register (PC_REGNUM)); \ */ +/* OBSOLETE sp = push_word (sp, read_register (FP_REGNUM)); \ */ +/* OBSOLETE /* sp = push_word (sp, read_register (AP_REGNUM));*x/ \ */ +/* OBSOLETE sp = push_word (sp, (read_register (PS_REGNUM) & 0xffef) \ */ +/* OBSOLETE + 0x2fff0000); \ */ +/* OBSOLETE sp = push_word (sp, 0); \ */ +/* OBSOLETE write_register (SP_REGNUM, sp); \ */ +/* OBSOLETE write_register (FP_REGNUM, sp); \ */ +/* OBSOLETE /* write_register (AP_REGNUM, sp + 17 * sizeof (int));*x/ } */ +/* OBSOLETE */ +/* OBSOLETE /* Discard from the stack the innermost frame, restoring all registers. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define POP_FRAME \ */ +/* OBSOLETE { register CORE_ADDR fp = read_register (FP_REGNUM); \ */ +/* OBSOLETE register int regnum; \ */ +/* OBSOLETE register int regmask = read_memory_integer (fp + 4, 4); \ */ +/* OBSOLETE write_register (PS_REGNUM, \ */ +/* OBSOLETE (regmask & 0xffff) \ */ +/* OBSOLETE | (read_register (PS_REGNUM) & 0xffff0000)); \ */ +/* OBSOLETE write_register (PC_REGNUM, read_memory_integer (fp + 16, 4)); \ */ +/* OBSOLETE write_register (FP_REGNUM, read_memory_integer (fp + 12, 4)); \ */ +/* OBSOLETE /* write_register (AP_REGNUM, read_memory_integer (fp + 8, 4));*x/ \ */ +/* OBSOLETE fp += 16; \ */ +/* OBSOLETE for (regnum = 0; regnum < 12; regnum++) \ */ +/* OBSOLETE if (regmask & (0x10000 << regnum)) \ */ +/* OBSOLETE write_register (regnum, read_memory_integer (fp += 4, 4)); \ */ +/* OBSOLETE fp = fp + 4 + ((regmask >> 30) & 3); \ */ +/* OBSOLETE if (regmask & 0x20000000) \ */ +/* OBSOLETE { regnum = read_memory_integer (fp, 4); \ */ +/* OBSOLETE fp += (regnum + 1) * 4; } \ */ +/* OBSOLETE write_register (SP_REGNUM, fp); \ */ +/* OBSOLETE set_current_frame (read_register (FP_REGNUM)); } */ +/* OBSOLETE */ +/* OBSOLETE /* This sequence of words is the instructions */ +/* OBSOLETE calls #69, @#32323232 */ +/* OBSOLETE bpt */ +/* OBSOLETE Note this is 8 bytes. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define CALL_DUMMY {0x329f69fb, 0x03323232} */ +/* OBSOLETE */ +/* OBSOLETE #define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Insert the specified number of args and function address */ +/* OBSOLETE into a call sequence of the above form stored at DUMMYNAME. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ */ +/* OBSOLETE { *((char *) dummyname + 1) = nargs; \ */ +/* OBSOLETE *(int *)((char *) dummyname + 3) = fun; } */ +/* OBSOLETE #endif /* 0 *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define POP_FRAME \ */ +/* OBSOLETE { error ("The return command is not supported on this machine."); } */ diff --git a/gdb/config/pyr/xm-pyr.h b/gdb/config/pyr/xm-pyr.h index f45d10a..d10afc5 100644 --- a/gdb/config/pyr/xm-pyr.h +++ b/gdb/config/pyr/xm-pyr.h @@ -1,92 +1,92 @@ -/* Definitions to make GDB run on a Pyramidax under OSx 4.0 (4.2bsd). - Copyright 1988, 1989, 1992 Free Software Foundation, Inc. - -This file is part of GDB. - -This program 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 2 of the License, or -(at your option) any later version. - -This program 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 this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define HOST_BYTE_ORDER BIG_ENDIAN - -/* 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 for ? */ - -/* 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 dep.c what the extra segment is. */ -#define PYRAMID_CORE - -#define NO_SIGINTERRUPT - -#define HAVE_WAIT_STRUCT - -/* 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)) - -/* 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; \ -} - -/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */ -#define FETCH_INFERIOR_REGISTERS +/* OBSOLETE /* Definitions to make GDB run on a Pyramidax under OSx 4.0 (4.2bsd). */ +/* OBSOLETE Copyright 1988, 1989, 1992 Free Software Foundation, Inc. */ +/* OBSOLETE */ +/* OBSOLETE This file is part of GDB. */ +/* OBSOLETE */ +/* OBSOLETE This program is free software; you can redistribute it and/or modify */ +/* OBSOLETE it under the terms of the GNU General Public License as published by */ +/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */ +/* OBSOLETE (at your option) any later version. */ +/* OBSOLETE */ +/* OBSOLETE This program is distributed in the hope that it will be useful, */ +/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */ +/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ +/* OBSOLETE GNU General Public License for more details. */ +/* OBSOLETE */ +/* OBSOLETE You should have received a copy of the GNU General Public License */ +/* OBSOLETE along with this program; if not, write to the Free Software */ +/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define HOST_BYTE_ORDER BIG_ENDIAN */ +/* OBSOLETE */ +/* OBSOLETE /* Define PYRAMID_CONTROL_FRAME_DEBUGGING to get copious messages */ +/* OBSOLETE about reading the control stack on standard output. This */ +/* OBSOLETE makes gdb unusable as a debugger. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* #define PYRAMID_CONTROL_FRAME_DEBUGGING *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Define PYRAMID_FRAME_DEBUGGING for ? *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* use Pyramid's slightly strange ptrace *x/ */ +/* OBSOLETE #define PYRAMID_PTRACE */ +/* OBSOLETE */ +/* OBSOLETE /* Traditional Unix virtual address spaces have thre regions: text, */ +/* OBSOLETE data and stack. The text, initialised data, and uninitialised data */ +/* OBSOLETE are represented in separate segments of the a.out file. */ +/* OBSOLETE When a process dumps core, the data and stack regions are written */ +/* OBSOLETE to a core file. This gives a debugger enough information to */ +/* OBSOLETE reconstruct (and debug) the virtual address space at the time of */ +/* OBSOLETE the coredump. */ +/* OBSOLETE Pyramids have an distinct fourth region of the virtual address */ +/* OBSOLETE space, in which the contents of the windowed registers are stacked */ +/* OBSOLETE in fixed-size frames. Pyramid refer to this region as the control */ +/* OBSOLETE stack. Each call (or trap) automatically allocates a new register */ +/* OBSOLETE frame; each return deallocates the current frame and restores the */ +/* OBSOLETE windowed registers to their values before the call. */ +/* OBSOLETE */ +/* OBSOLETE When dumping core, the control stack is written to a core files as */ +/* OBSOLETE a third segment. The core-handling functions need to know to deal */ +/* OBSOLETE with it. *x/ */ +/* OBSOLETE */ +/* OBSOLETE /* Tell dep.c what the extra segment is. *x/ */ +/* OBSOLETE #define PYRAMID_CORE */ +/* OBSOLETE */ +/* OBSOLETE #define NO_SIGINTERRUPT */ +/* OBSOLETE */ +/* OBSOLETE #define HAVE_WAIT_STRUCT */ +/* OBSOLETE */ +/* OBSOLETE /* This is the amount to subtract from u.u_ar0 */ +/* OBSOLETE to get the offset in the core file of the register values. *x/ */ +/* OBSOLETE */ +/* OBSOLETE #define KERNEL_U_ADDR (0x80000000 - (UPAGES * NBPG)) */ +/* OBSOLETE */ +/* OBSOLETE /* Define offsets of registers in the core file (or maybe u area) *x/ */ +/* OBSOLETE #define REGISTER_U_ADDR(addr, blockend, regno) \ */ +/* OBSOLETE { struct user __u; \ */ +/* OBSOLETE addr = blockend + (regno - 16 ) * 4; \ */ +/* OBSOLETE if (regno == 67) { \ */ +/* OBSOLETE printf("\\geting reg 67\\"); \ */ +/* OBSOLETE addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ */ +/* OBSOLETE } else if (regno == KSP_REGNUM) { \ */ +/* OBSOLETE printf("\\geting KSP (reg %d)\\", KSP_REGNUM); \ */ +/* OBSOLETE addr = (int)(&__u.u_pcb.pcb_ksp) - (int) &__u; \ */ +/* OBSOLETE } else if (regno == CSP_REGNUM) { \ */ +/* OBSOLETE printf("\\geting CSP (reg %d\\",CSP_REGNUM); \ */ +/* OBSOLETE addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ */ +/* OBSOLETE } else if (regno == 64) { \ */ +/* OBSOLETE printf("\\geting reg 64\\"); \ */ +/* OBSOLETE addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ */ +/* OBSOLETE } else if (regno == PS_REGNUM) \ */ +/* OBSOLETE addr = blockend - 4; \ */ +/* OBSOLETE else if (1 && ((16 > regno) && (regno > 11))) \ */ +/* OBSOLETE addr = last_frame_offset + (4 *(regno+32)); \ */ +/* OBSOLETE else if (0 && (12 > regno)) \ */ +/* OBSOLETE addr = global_reg_offset + (4 *regno); \ */ +/* OBSOLETE else if (16 > regno) \ */ +/* OBSOLETE addr = global_reg_offset + (4 *regno); \ */ +/* OBSOLETE else \ */ +/* OBSOLETE addr = blockend + (regno - 16 ) * 4; \ */ +/* OBSOLETE } */ +/* OBSOLETE */ +/* OBSOLETE /* Override copies of {fetch,store}_inferior_registers in infptrace.c. *x/ */ +/* OBSOLETE #define FETCH_INFERIOR_REGISTERS */ |