summaryrefslogtreecommitdiff
path: root/gdb/config/i386/tm-ptx.h
diff options
context:
space:
mode:
authorStan Shebs <shebs@apple.com>1999-04-16 01:35:26 +0000
committerStan Shebs <shebs@apple.com>1999-04-16 01:35:26 +0000
commit14cd51f7793a9ce07bc435069f57269450141363 (patch)
tree280a2da48f771d61be5b451ddbacdf9ef8e9ad13 /gdb/config/i386/tm-ptx.h
downloadgdb-14cd51f7793a9ce07bc435069f57269450141363.tar.gz
Initial revision
Diffstat (limited to 'gdb/config/i386/tm-ptx.h')
-rw-r--r--gdb/config/i386/tm-ptx.h232
1 files changed, 232 insertions, 0 deletions
diff --git a/gdb/config/i386/tm-ptx.h b/gdb/config/i386/tm-ptx.h
new file mode 100644
index 00000000000..c9f67d7f6d8
--- /dev/null
+++ b/gdb/config/i386/tm-ptx.h
@@ -0,0 +1,232 @@
+/* Target machine definitions for GDB on a Sequent Symmetry under ptx
+ with Weitek 1167 and i387 support.
+ Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Symmetry version by Jay Vosburgh (fubar@sequent.com).
+
+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_PTX_H
+#define TM_PTX_H 1
+
+/* I don't know if this will work for cross-debugging, even if you do get
+ a copy of the right include file. */
+
+#include <sys/reg.h>
+
+#ifdef SEQUENT_PTX4
+#include "i386/tm-i386v4.h"
+#else /* !SEQUENT_PTX4 */
+#include "i386/tm-i386v.h"
+#endif
+
+/* Number of traps that happen between exec'ing the shell to run an
+ inferior, and when we finally get to the inferior code. This is 2
+ on most implementations. Here we have to undo what tm-i386v.h gave
+ us and restore the default. */
+
+#undef START_INFERIOR_TRAPS_EXPECTED
+#define START_INFERIOR_TRAPS_EXPECTED 2
+
+/* Amount PC must be decremented by after a breakpoint. This is often the
+ number of bytes in BREAKPOINT but not always (such as now). */
+
+#undef DECR_PC_AFTER_BREAK
+#define DECR_PC_AFTER_BREAK 0
+
+#if 0
+ --- this code can't be used unless we know we are running native,
+ since it uses host specific ptrace calls.
+/* code for 80387 fpu. Functions are from i386-dep.c, copied into
+ * symm-dep.c.
+ */
+#define FLOAT_INFO { i386_float_info(); }
+#endif
+
+/* Number of machine registers */
+
+#undef NUM_REGS
+#define NUM_REGS 49
+
+/* Initializer for an array of names of registers. There should be at least
+ NUM_REGS strings in this initializer. Any excess ones are simply ignored.
+ The order of the first 8 registers must match the compiler's numbering
+ scheme (which is the same as the 386 scheme) and also regmap in the various
+ *-nat.c files. */
+
+#undef REGISTER_NAMES
+#define REGISTER_NAMES { "eax", "ecx", "edx", "ebx", \
+ "esp", "ebp", "esi", "edi", \
+ "eip", "eflags", "st0", "st1", \
+ "st2", "st3", "st4", "st5", \
+ "st6", "st7", "fp1", "fp2", \
+ "fp3", "fp4", "fp5", "fp6", \
+ "fp7", "fp8", "fp9", "fp10", \
+ "fp11", "fp12", "fp13", "fp14", \
+ "fp15", "fp16", "fp17", "fp18", \
+ "fp19", "fp20", "fp21", "fp22", \
+ "fp23", "fp24", "fp25", "fp26", \
+ "fp27", "fp28", "fp29", "fp30", \
+ "fp31" }
+
+/* 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. */
+
+#define EAX_REGNUM 0
+#define ECX_REGNUM 1
+#define EDX_REGNUM 2
+#define EBX_REGNUM 3
+
+#define ESP_REGNUM 4
+#define EBP_REGNUM 5
+
+#define ESI_REGNUM 6
+#define EDI_REGNUM 7
+
+#define EIP_REGNUM 8
+#define EFLAGS_REGNUM 9
+
+#define ST0_REGNUM 10
+#define ST1_REGNUM 11
+#define ST2_REGNUM 12
+#define ST3_REGNUM 13
+
+#define ST4_REGNUM 14
+#define ST5_REGNUM 15
+#define ST6_REGNUM 16
+#define ST7_REGNUM 17
+
+#define FP1_REGNUM 18 /* first 1167 register */
+/* Get %fp2 - %fp31 by addition, since they are contiguous */
+
+#undef SP_REGNUM
+#define SP_REGNUM ESP_REGNUM /* Contains address of top of stack */
+#undef FP_REGNUM
+#define FP_REGNUM EBP_REGNUM /* Contains address of executing stack frame */
+#undef PC_REGNUM
+#define PC_REGNUM EIP_REGNUM /* Contains program counter */
+#undef PS_REGNUM
+#define PS_REGNUM EFLAGS_REGNUM /* Contains processor status */
+
+/*
+ * For ptx, this is a little bit bizarre, since the register block
+ * is below the u area in memory. This means that blockend here ends
+ * up being negative (for the call from coredep.c) since the value in
+ * u.u_ar0 will be less than KERNEL_U_ADDR (and coredep.c passes us
+ * u.u_ar0 - KERNEL_U_ADDR in blockend). Since we also define
+ * FETCH_INFERIOR_REGISTERS (and supply our own functions for that),
+ * the core file case will be the only use of this function.
+ */
+
+#define REGISTER_U_ADDR(addr, blockend, regno) \
+{ (addr) = ptx_register_u_addr((blockend), (regno)); }
+
+extern int
+ptx_register_u_addr PARAMS ((int, int));
+
+/* Total amount of space needed to store our copies of the machine's
+ register state, the array `registers'. 10 i*86 registers, 8 i387
+ registers, and 31 Weitek 1167 registers */
+
+#undef REGISTER_BYTES
+#define REGISTER_BYTES ((10 * 4) + (8 * 10) + (31 * 4))
+
+/* Index within `registers' of the first byte of the space for register N. */
+
+#undef REGISTER_BYTE
+#define REGISTER_BYTE(N) \
+(((N) < ST0_REGNUM) ? ((N) * 4) : \
+ ((N) < FP1_REGNUM) ? (40 + (((N) - ST0_REGNUM) * 10)) : \
+ (40 + 80 + (((N) - FP1_REGNUM) * 4)))
+
+/* Number of bytes of storage in the actual machine representation for
+ register N. All registers are 4 bytes, except 387 st(0) - st(7),
+ which are 80 bits each. */
+
+#undef REGISTER_RAW_SIZE
+#define REGISTER_RAW_SIZE(N) \
+(((N) < ST0_REGNUM) ? 4 : \
+ ((N) < FP1_REGNUM) ? 10 : \
+ 4)
+
+/* Largest value REGISTER_RAW_SIZE can have. */
+
+#undef MAX_REGISTER_RAW_SIZE
+#define MAX_REGISTER_RAW_SIZE 10
+
+/* Nonzero if register N requires conversion
+ from raw format to virtual format. */
+
+#undef REGISTER_CONVERTIBLE
+#define REGISTER_CONVERTIBLE(N) \
+((N < ST0_REGNUM) ? 0 : \
+ (N < FP1_REGNUM) ? 1 : \
+ 0)
+
+/* Convert data from raw format for register REGNUM
+ to virtual format for register REGNUM. */
+extern const struct floatformat floatformat_i387_ext; /* from floatformat.h */
+
+#undef REGISTER_CONVERT_TO_VIRTUAL
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
+((REGNUM < ST0_REGNUM) ? (void)memcpy ((TO), (FROM), 4) : \
+ (REGNUM < FP1_REGNUM) ? (void)floatformat_to_double(&floatformat_i387_ext, \
+ (FROM),(TO)) : \
+ (void)memcpy ((TO), (FROM), 4))
+
+/* Convert data from virtual format for register REGNUM
+ to raw format for register REGNUM. */
+
+#undef REGISTER_CONVERT_TO_RAW
+#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
+((REGNUM < ST0_REGNUM) ? (void)memcpy ((TO), (FROM), 4) : \
+ (REGNUM < FP1_REGNUM) ? (void)floatformat_from_double(&floatformat_i387_ext, \
+ (FROM),(TO)) : \
+ (void)memcpy ((TO), (FROM), 4))
+
+/* Return the GDB type object for the "standard" data type
+ of data in register N. */
+/*
+ * Note: the 1167 registers (the last line, builtin_type_float) are
+ * generally used in pairs, with each pair being treated as a double.
+ * It it also possible to use them singly as floats. I'm not sure how
+ * in gdb to treat the register pair pseudo-doubles. -fubar
+ */
+#undef REGISTER_VIRTUAL_TYPE
+#define REGISTER_VIRTUAL_TYPE(N) \
+((N < ST0_REGNUM) ? builtin_type_int : \
+ (N < FP1_REGNUM) ? builtin_type_double : \
+ builtin_type_float)
+
+/* 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. */
+
+#undef EXTRACT_RETURN_VALUE
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+ symmetry_extract_return_value(TYPE, REGBUF, VALBUF)
+
+/*
+#undef FRAME_FIND_SAVED_REGS
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
+{ ptx_frame_find_saved_regs((frame_info), &(frame_saved_regs)); }
+*/
+
+#endif /* ifndef TM_PTX_H */