diff options
Diffstat (limited to 'gdb/m-sparc.h')
| -rw-r--r-- | gdb/m-sparc.h | 89 |
1 files changed, 46 insertions, 43 deletions
diff --git a/gdb/m-sparc.h b/gdb/m-sparc.h index 7cde3f1..7615611 100644 --- a/gdb/m-sparc.h +++ b/gdb/m-sparc.h @@ -1,28 +1,34 @@ /* Parameters for execution on a Sun 4, for GDB, the GNU debugger. - Copyright (C) 1986, 1987 Free Software Foundation, Inc. + Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc. Contributed by Michael Tiemann (tiemann@mcc.com) +This file is part of GDB. -GDB is distributed in the hope that it will be useful, but WITHOUT ANY -WARRANTY. No author or distributor accepts responsibility to anyone -for the consequences of using it or for whether it serves any -particular purpose or works at all, unless he says so in writing. -Refer to the GDB General Public License for full details. +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. -Everyone is granted permission to copy, modify and redistribute GDB, -but only under the conditions described in the GDB General Public -License. A copy of this license is supposed to have been given to you -along with GDB so you can know your rights and responsibilities. It -should be in a file named COPYING. Among other things, the copyright -notice and this notice must be preserved on all copies. +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. -In other words, go ahead and share GDB, but don't try to stop -anyone else from sharing it farther. Help stamp out software hoarding! -*/ +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. */ #ifndef sun4 #define sun4 #endif +/* 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. */ +#define IEEE_FLOAT + /* Get rid of any system-imposed stack limit if possible. */ #define SET_STACK_LIMIT_HUGE @@ -36,16 +42,16 @@ anyone else from sharing it farther. Help stamp out software hoarding! #define READ_DBX_FORMAT -/* Big or Little-Endian target machine - BITS: defined if bit #0 is the high-order bit of a byte. - BYTES:defined if byte#0 is the high-order byte of an int. - WORDS:defined if word#0 is the high-order word of a double. */ -#define BITS_BIG_ENDIAN -#define BYTES_BIG_ENDIAN -#define WORDS_BIG_ENDIAN +/* If Pcc says that a parameter is a short, it's a short. This is + because the parameter does get passed in in a register as an int, + but pcc puts it onto the stack frame as a short (not nailing + whatever else might be there. I'm not sure that I consider this + swift. Sigh.) -/* Floating point is IEEE compatible. */ -#define IEEE_FLOAT + No, don't do this. The problem here is that pcc says that the + argument is in the upper half of the word reserved on the stack, + but puts it in the lower half. */ +/* #define BELIEVE_PCC_PROMOTION 1 */ /* Offset from address of function to start of its code. Zero on most machines. */ @@ -73,10 +79,9 @@ anyone else from sharing it farther. Help stamp out software hoarding! #define SAVED_PC_AFTER_CALL(frame) PC_ADJUST (read_register (RP_REGNUM)) /* Address of end of stack space. */ - -#define STACK_END_ADDR 0xf8000000 - -/* Stack grows downward. */ +#include <sys/types.h> +#include <machine/vmparam.h> +#define STACK_END_ADDR USRSTACK #define INNER_THAN < @@ -261,11 +266,6 @@ anyone else from sharing it farther. Help stamp out software hoarding! #define ATTACH_DETACH -/* It is safe to look for symsegs on a Sun, because Sun's ld - does not screw up with random garbage at end of file. */ - -#define READ_GDB_SYMSEGS - /* Describe the pointer in each stack frame to the previous stack frame (its caller). */ @@ -315,20 +315,19 @@ anyone else from sharing it farther. Help stamp out software hoarding! #define FRAME_CHAIN(thisframe) \ GET_RWINDOW_REG ((thisframe)->frame, rw_in[6]) -/* Avoid checking FRAME_SAVED_PC since that screws us due to - improperly set up saved PC on a signal trampoline call */ -#if 0 #define FRAME_CHAIN_VALID(chain, thisframe) \ - (chain != 0 && (FRAME_SAVED_PC (thisframe) >= first_object_file_end)) -#else -#define FRAME_CHAIN_VALID(chain, thisframe) \ - (chain != 0) -#endif + (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe)))) #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. */ +#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ + FRAMELESS_LOOK_FOR_PROLOGUE(FI, FRAMELESS) + /* Where is the PC for a specific frame */ #define FRAME_SAVED_PC(FRAME) frame_saved_pc (FRAME) @@ -375,8 +374,12 @@ anyone else from sharing it farther. Help stamp out software hoarding! FRAME fid = FRAME_INFO_ID (fi); \ if (!fid) fatal ("Bad frame info struct in FRAME_FIND_SAVED_REGS"); \ bzero (&(frame_saved_regs), sizeof (frame_saved_regs)); \ + /* Old test. \ if ((fi)->pc >= frame - CALL_DUMMY_LENGTH - 0x140 \ - && (fi)->pc <= frame) \ + && (fi)->pc <= frame) */ \ + if ((fi)->pc >= ((fi)->bottom ? (fi)->bottom : \ + read_register (SP_REGNUM)) \ + && (fi)->pc <= FRAME_FP(fi)) \ { \ for (regnum = 1; regnum < 8; regnum++) \ (frame_saved_regs).regs[regnum] = \ @@ -415,7 +418,7 @@ anyone else from sharing it farther. Help stamp out software hoarding! /* is accurate */ \ for (regnum = 30; regnum < 32; regnum++) \ (frame_saved_regs).regs[regnum] = frame + (regnum-16) * 4; \ - (frame_saved_regs).regs[SP_REGNUM] = frame; \ + (frame_saved_regs).regs[SP_REGNUM] = FRAME_FP (fi); \ (frame_saved_regs).regs[PC_REGNUM] = frame + 15*4; \ } |