* mipsread.c (parse_symbol, parse_procedure): Re-do the way that

[binutils-gdb.git] / gdb / tm-irix3.h

diff --git a/gdb/tm-irix3.h b/gdb/tm-irix3.h
index 63460a3ecebecd2b702d0fb86675574a7a1422c3..df3b0546cdb5cfe193923c68cf9544d6cfba3cbf 100644 (file)
--- a/gdb/tm-irix3.h
+++ b/gdb/tm-irix3.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1990 Free Software Foundation, Inc.
+/* Target machine description for SGI Iris under Irix, for GDB.
+   Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
 
 This file is part of GDB.
 
@@ -16,6 +17,12 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
+#ifndef LANGUAGE_C
+#define LANGUAGE_C
+#endif
+#include <sym.h>
+#include <symconst.h>
+
 #define TARGET_BYTE_ORDER BIG_ENDIAN
 
 /* Floating point is IEEE compliant */
@@ -26,14 +33,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 /*#define NAMES_HAVE_UNDERSCORE*/
 
-/* Debugger information will be in mips' format */
-
-#define READ_MIPS_FORMAT
-
-/* File format is coff, but with additions */
-
-#define COFF_FORMAT
-
 /* Offset from address of function to start of its code.
    Zero on most machines.  */
 
@@ -109,6 +108,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
    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 A0_REGNUM 4            /* Loc of first arg during a subr call */
 #define SP_REGNUM 29           /* Contains address of top of stack */
 #define FP_REGNUM 30           /* Pseudo register that contains true address of executing stack frame */
 #define RA_REGNUM 31           /* Contains return address value */
@@ -206,22 +206,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
    (its caller).  */
 
 /* 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.  */
+   and produces the frame's chain-pointer. */
 
 #define FRAME_CHAIN(thisframe) (FRAME_ADDR)mips_frame_chain(thisframe)
 
-#define FRAME_CHAIN_VALID(chain, thisframe) \
-  (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe))))
-
-#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
-
 /* Define other aspects of the stack frame.  */
 
 
@@ -314,20 +302,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
    mipsread.c (ab)uses this to save memory */
 
 typedef struct mips_extra_func_info {
-       unsigned long   adr;    /* memory address of start of procedure */
-       long    isym;           /* pointer to procedure symbol */
-       long    pad2;           /* iline: start of line number entries*/
-       long    regmask;        /* save register mask */
-       long    regoffset;      /* save register offset */
        long    numargs;        /* number of args to procedure (was iopt) */
-       long    fregmask;       /* save floating point register mask */
-       long    fregoffset;     /* save floating point register offset */
-       long    framesize;      /* frameoffset: frame size */
-       short   framereg;       /* frame pointer register */
-       short   pcreg;          /* offset or reg of return pc */
-       long    lnLow;          /* lowest line in the procedure */
-       long    lnHigh;         /* highest line in the procedure */
-       long    pad3;           /* cbLineOffset: byte offset for this procedure from the fd base */
+       PDR     pdr;            /* Procedure descriptor record */
 } *mips_extra_func_info_t;
 
 #define EXTRA_FRAME_INFO \
@@ -335,4 +311,17 @@ typedef struct mips_extra_func_info {
   int num_args;\
   struct frame_saved_regs *saved_regs;
 
-#define INIT_EXTRA_FRAME_INFO(fci) init_extra_frame_info(fci)
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) init_extra_frame_info(fci)
+
+/* Size of elements in jmpbuf */
+
+#define JB_ELEMENT_SIZE 4
+
+/* Figure out where the longjmp will land.  We expect that we have just entered
+   longjmp and haven't yet setup the stack frame, so the args are still in the
+   argument regs.  a0 (CALL_ARG0) points at 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 */
+
+/* Note that caller must #include <setjmp.h> in order to get def of JB_* */
+#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)