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Diffstat (limited to 'contrib/gdb/gdb/config/i386/tm-go32.h')
-rw-r--r-- | contrib/gdb/gdb/config/i386/tm-go32.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/config/i386/tm-go32.h b/contrib/gdb/gdb/config/i386/tm-go32.h new file mode 100644 index 0000000..b660827 --- /dev/null +++ b/contrib/gdb/gdb/config/i386/tm-go32.h @@ -0,0 +1,68 @@ +/* Target-dependent definitions for Intel x86 running DJGPP. + Copyright 1995, 1996, 1997, 1999, 2000 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. */ + +#ifndef TM_GO32_H +#define TM_GO32_H + +#undef HAVE_SSE_REGS /* FIXME! go32-nat.c needs to support XMMi registers */ +#define HAVE_I387_REGS + +#include "i386/tm-i386.h" + +/* FRAME_CHAIN takes a frame's nominal address and produces the frame's + chain-pointer. + In the case of the i386, the frame's nominal address + is the address of a 4-byte word containing the calling frame's address. + DJGPP doesn't have any special frames for signal handlers, they are + just normal C functions. */ +#undef FRAME_CHAIN +#define FRAME_CHAIN(thisframe) \ + (!inside_entry_file ((thisframe)->pc) ? \ + read_memory_integer ((thisframe)->frame, 4) :\ + 0) + +/* 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. */ +#undef FRAMELESS_FUNCTION_INVOCATION +#define FRAMELESS_FUNCTION_INVOCATION(FI) \ + (frameless_look_for_prologue(FI)) + +extern CORE_ADDR i386go32_frame_saved_pc (struct frame_info *frame); +#undef FRAME_SAVED_PC +#define FRAME_SAVED_PC(FRAME) (i386go32_frame_saved_pc ((FRAME))) + +/* Support for longjmp. */ + +/* Details about jmp_buf. It's supposed to be an array of integers. */ + +#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */ +#define JB_PC 8 /* Array index of saved PC inside jmp_buf. */ + +/* Figure out where the longjmp will land. Slurp the args out of the + stack. We expect the first arg to be a pointer to the jmp_buf + structure from which we extract the pc (JB_PC) that we will land + at. The pc is copied into ADDR. This routine returns true on + success. */ + +#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr) +extern int get_longjmp_target (CORE_ADDR *addr); + +#endif /* TM_GO32_H */ |