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Support for Hitachi SH

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This commit is contained in:
Steve Chamberlain 1993-04-27 01:17:32 +00:00
parent ed173a7696
commit 9faacb925f
13 changed files with 557 additions and 8 deletions
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2
bfd/.Sanitize
View file

@ -55,6 +55,7 @@ coff-m88k.c
coff-mips.c
coff-msym.c
coff-rs6000.c
coff-sh.c
coff-we32k.c
coff-z8k.c
coffcode.h
@ -97,6 +98,7 @@ cpu-hppa.c
cpu-i960.c
cpu-m88k.c
cpu-rs6000.c
cpu-sh.c
cpu-we32k.c
cpu-z8k.c
hp300bsd.c

5
bfd/ChangeLog
View file

@ -1,3 +1,8 @@
Mon Apr 26 13:24:43 1993 Steve Chamberlain (sac@thepub.cygnus.com)
* Makefile.in, archures.c, coffcode.h, targets.c: Support for
Hitachi SH.
Mon Apr 26 13:55:42 1993 Jim Kingdon (kingdon@cygnus.com)
* trad-core.c (trad_unix_core_file_p): Check the file size.

12
bfd/Makefile.in
View file

@ -75,7 +75,7 @@ BFD_LIBS = libbfd.o opncls.o bfd.o archive.o targets.o cache.o \
BFD_MACHINES = cpu-h8300.o cpu-i960.o cpu-sparc.o cpu-m68k.o cpu-m88k.o \
cpu-vax.o cpu-mips.o cpu-a29k.o cpu-i386.o cpu-rs6000.o cpu-hppa.o \
cpu-z8k.o cpu-we32k.o cpu-h8500.o
cpu-z8k.o cpu-we32k.o cpu-h8500.o cpu-alpha.o cpu-sh.o
BFD_BACKENDS = aout32.o sunos.o newsos3.o mipsbsd.o aout-adobe.o \
i386aout.o i386bsd.o i386linux.o \
@ -85,7 +85,7 @@ BFD_BACKENDS = aout32.o sunos.o newsos3.o mipsbsd.o aout-adobe.o \
coff-mips.o coff-msym.o \
elf32.o elf32-sparc.o elf32-i386.o elf32-i860.o elf32-m68k.o \
bout.o \
hppa.o oasys.o ieee.o srec.o stab-syms.o
hppa.o oasys.o ieee.o srec.o stab-syms.o coff-alpha.o coff-sh.o
OPTIONAL_BACKENDS = trad-core.o
@ -124,7 +124,8 @@ CFILES = libbfd.c opncls.c bfd.c archive.c targets.c cache.c \
cpu-m88k.c cpu-vax.c cpu-mips.c cpu-a29k.c cpu-i386.c \
cpu-rs6000.c coff-h8300.c hppa.c cpu-hppa.c cpu-we32k.c reloc16.c \
mipsbsd.c \
elf32.c elf32-sparc.c elf32-i386.c elf32-i860.c elf32-m68k.c
elf32.c elf32-sparc.c elf32-i386.c elf32-i860.c elf32-m68k.c \
coff-alpha.c cpu-alpha.c
STAGESTUFF = $(TARGETLIB) $(OFILES)
@ -138,7 +139,7 @@ check:
installcheck:
info dvi : force
@$(MAKE) subdir_do DO=info "DODIRS=$(SUBDIRS)" $(FLAGS_TO_PASS)
@$(MAKE) subdir_do DO=$@ "DODIRS=$(SUBDIRS)" $(FLAGS_TO_PASS)
clean-info:
@$(MAKE) subdir_do DO=clean-info "DODIRS=$(SUBDIRS)" $(FLAGS_TO_PASS)
@ -325,7 +326,8 @@ bfd.ps:
libbfd.o : libbfd.c $(INCDIR)/bfd.h $(INCDIR)/obstack.h libbfd.h
opncls.o : opncls.c $(INCDIR)/bfd.h $(INCDIR)/obstack.h libbfd.h
bfd.o : bfd.c $(INCDIR)/bfd.h $(INCDIR)/obstack.h libbfd.h
bfd.o : bfd.c $(INCDIR)/bfd.h $(INCDIR)/obstack.h libbfd.h \
$(INCDIR)/coff/sym.h libecoff.h
archive.o : archive.c $(INCDIR)/bfd.h $(INCDIR)/obstack.h libbfd.h \
$(INCDIR)/aout/ar.h $(INCDIR)/aout/ranlib.h
targets.o : targets.c $(INCDIR)/bfd.h $(INCDIR)/obstack.h libbfd.h

17
bfd/coffcode.h
View file

@ -342,7 +342,7 @@ DEFUN(sec_to_styp_flags, (sec_name, sec_flags),
}
else if (!strcmp (sec_name, _LIT))
{
stype_flags = STYP_LIT;
styp_flags = STYP_LIT;
#endif /* _LIT */
}
@ -921,6 +921,13 @@ DEFUN (coff_set_arch_mach_hook, (abfd, filehdr),
break;
#endif
#ifdef SHMAGIC
case SHMAGIC:
arch = bfd_arch_sh;
machine = 0;
break;
#endif
#ifdef H8500MAGIC
case H8500MAGIC:
arch = bfd_arch_h8500;
@ -1117,6 +1124,14 @@ DEFUN(coff_set_flags,(abfd, magicp, flagsp),
return true;
break;
#endif
#ifdef SHMAGIC
case bfd_arch_sh:
*magicp = SHMAGIC;
return true;
break;
#endif
#ifdef H8500MAGIC
case bfd_arch_h8500:
*magicp = H8500MAGIC;

8
bfd/configure.in
View file

@ -34,12 +34,15 @@ fi
# convention, else the table becomes a real mess to understand and maintain.
case "${target}" in
alpha-*-*) bfd_target=alphaosf ;;
a29k-*-ebmon) bfd_target=a29k-coff ;;
a29k-*-udi) bfd_target=a29k-coff ;;
a29k-*-aout) bfd_target=a29k-aout ;;
a29k-*-coff) bfd_target=a29k-coff ;;
a29k-*-sym1) bfd_target=a29k-coff ;;
h8300-*-*) bfd_target=h8300-coff ;;
h8500-*-*) bfd_target=h8500-coff ;;
sh-*-*) bfd_target=sh-coff ;;
hppa*-*-bsd) bfd_target=hppabsd ;;
hppa*-*-hpux) bfd_target=hppahpux ;;
i[34]86-*-sysv4*) bfd_target=i386-elf ;;
@ -63,10 +66,11 @@ case "${target}" in
m68*-ericsson-*) bfd_target=m68k-aout ;;
m68*-netx-*) bfd_target=m68k-aout ;;
m88k-*-*) bfd_target=m88k-coff ;;
mips-big-*) bfd_target=irix3 ;;
mips-big-*) bfd_target=bigmips ;;
mips-dec-bsd*) bfd_target=mipsdecbsd ;;
mips-dec-*) bfd_target=decstation ;;
mips-sgi-*) bfd_target=irix3 ;;
mips-*-ecoff) bfd_target=bigmips ;;
mips-sgi-*) bfd_target=bigmips ;;
rs6000-*-*) bfd_target=rs6000 ;;
sparc-*-solaris2*) bfd_target=sparc-elf ;;
sparc-*-sysv4*) bfd_target=sparc-elf ;;

1
gdb/.Sanitize
View file

@ -192,6 +192,7 @@ ser-go32.c
ser-unix.c
serial.c
serial.h
sh-tdep.c
signals.h
solib.c
solib.h

4
gdb/ChangeLog
View file

@ -1,3 +1,7 @@
Mon Apr 26 17:59:38 1993 Steve Chamberlain (sac@thepub.cygnus.com)
* config/sh/sh.mt, config/sh/tm-sh.h, sh-tdep.c: New files.
Mon Apr 26 07:13:32 1993 Jim Kingdon (kingdon@cygnus.com)
* rs6000-tdep.c (branch_dest): Deal with stepping through system call.

1
gdb/config/.Sanitize
View file

@ -40,6 +40,7 @@ pa
pyr
romp
rs6000
sh
sparc
tahoe
tm-sunos.h

29
gdb/config/sh/.Sanitize Normal file
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@ -0,0 +1,29 @@
# Each directory to survive it's way into a release will need a file
# like this one called "./.Sanitize". All keyword lines must exist,
# and must exist in the order specified by this file. Each directory
# in the tree will be processed, top down, in the following order.
# Hash started lines like this one are comments and will be deleted
# before anything else is done. Blank lines will also be squashed
# out.
# The lines between the "Do-first:" line and the "Things-to-keep:"
# line are executed as a /bin/sh shell script before anything else is
# done in this
Do-first:
# All files listed between the "Things-to-keep:" line and the
# "Files-to-sed:" line will be kept. All other files will be removed.
# Directories listed in this section will have their own Sanitize
# called. Directories not listed will be removed in their entirety
# with rm -rf.
Things-to-keep:
sh.mt
tm-sh.h
Do-last:
# End of file.

3
gdb/config/sh/sh.mt Normal file
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@ -0,0 +1,3 @@
# Target: Hitachi Super-H ICE and simulator
TDEPFILES= exec.o sh-tdep.o remote-sim.o ../sim/sh/interp.o ../sim/sh/table.o
TM_FILE= tm-sh.h

239
gdb/config/sh/tm-sh.h Normal file
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@ -0,0 +1,239 @@
/* Parameters for execution on a Hitachi Super-H machine.
Copyright (C) 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Contributed by Steve Chamberlain sac@cygnus.com */
#define GDB_TARGET_IS_SH
#define IEEE_FLOAT 1
/* Define the bit, byte, and word ordering of the machine. */
#define TARGET_BYTE_ORDER BIG_ENDIAN
/* 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. */
extern CORE_ADDR sh_skip_prologue ();
#define SKIP_PROLOGUE(ip) \
{(ip) = sh_skip_prologue(ip);}
/* 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.
The return address is the value saved in the PR register + 4 */
#define SAVED_PC_AFTER_CALL(frame) \
(ADDR_BITS_REMOVE(read_register(PR_REGNUM))+4)
/* Stack grows downward. */
#define INNER_THAN <
/* Illegal instruction - used by the simulator for breakpoint
detection */
#define BREAKPOINT {0xc3, 0xff} /* 0xc3ff is trapa #ff */
/* If your kernel resets the pc after the trap happens you may need to
define this before including this file. */
#define DECR_PC_AFTER_BREAK 0
/* Nonzero if instruction at PC is a return instruction. */
#define ABOUT_TO_RETURN(pc) (read_memory_integer(pc,2) == 0x000b)
/* Return 1 if P points to an invalid floating point value. */
#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */
/* Say how long registers are. */
#define REGISTER_TYPE long
/* Say how much memory is needed to store a copy of the register set */
#define REGISTER_BYTES (NUM_REGS*4)
/* 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. */
#define REGISTER_RAW_SIZE(N) 4
#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
/* Nonzero if register N requires conversion
from raw format to virtual format. */
#define REGISTER_CONVERTIBLE(N) (0)
/* Convert data from raw format for register REGNUM
to virtual format for register REGNUM. */
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
{ memcpy ((TO), (FROM), 4); }
/* Convert data from virtual format for register REGNUM
to raw format for register REGNUM. */
#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
{ memcpy ((TO), (FROM), 4); }
/* Return the GDB type object for the "standard" data type
of data in register N. */
#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int
/* Initializer for an array of names of registers.
Entries beyond the first NUM_REGS are ignored. */
#define REGISTER_NAMES \
{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
"r8", "r9", "r10","r11","r12","r13","r14","r15",\
"pc", "pr","gbr","vbr","mach","macl","sr","ticks","cycles","insts" }
#define NUM_REGS 25
/* 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 FP_REGNUM 14
#define SP_REGNUM 15
#define PC_REGNUM 16
#define PR_REGNUM 17
#define GBR_REGNUM 18
#define VBR_REGNUM 19
#define MACH_REGNUM 20
#define MACL_REGNUM 21
#define CR_REGNUM 22
/* Store the address of the place in which to copy the structure the
subroutine will return. This is called from call_function.
We store structs through a pointer passed in R4 */
#define STORE_STRUCT_RETURN(ADDR, SP) \
{ write_register (4, (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. */
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
bcopy ((char *)(REGBUF), VALBUF, TYPE_LENGTH(TYPE))
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format.
Things always get returned in R4/R5 */
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
write_register_bytes (REGISTER_BYTE(4), 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). */
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(CORE_ADDR *)(REGBUF))
/* Define other aspects of the stack frame.
we keep a copy of the worked out return pc lying around, since it
is a useful bit of info */
#define EXTRA_FRAME_INFO \
CORE_ADDR return_pc;
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
init_extra_frame_info(fromleaf, fi)
/* 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) = frameless_look_for_prologue(FI)
CORE_ADDR h8500_frame_chain (/* FRAME thisframe */);
#define FRAME_CHAIN(FRAME) sh_frame_chain(FRAME)
#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc)
#define FRAME_ARGS_ADDRESS(fi) (fi)->frame
#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
/* Set VAL to the number of args passed to frame described by FI.
Can set VAL to -1, meaning no way to tell. */
/* We can't tell how many args there are */
#define FRAME_NUM_ARGS(val,fi) (val = -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. */
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
frame_find_saved_regs(frame_info, &(frame_saved_regs))
#define NAMES_HAVE_UNDERSCORE
typedef unsigned short INSN_WORD;
#define ADDR_BITS_REMOVE(addr) ((addr) & 0xfffff)
#define ADDR_BITS_SET(addr) (addr)
#define CALL_DUMMY_LENGTH 10
/* Discard from the stack the innermost frame,
restoring all saved registers. */
#define POP_FRAME pop_frame();

2
gdb/configure.in
View file

@ -152,6 +152,8 @@ c2-*-*) gdb_target=convex ;;
h8300-*-*) gdb_target=h8300hms ;;
h8500-*-*) gdb_target=h8500hms ;;
sh-*-*) gdb_target=sh ;;
hppa*-*-bsd) gdb_target=hppabsd ;;
hppa*-*-hpux) gdb_target=hppahpux ;;

242
gdb/sh-tdep.c Normal file
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@ -0,0 +1,242 @@
/* Target-machine dependent code for Hitachi Super-H, for GDB.
Copyright (C) 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*
Contributed by Steve Chamberlain
sac@cygnus.com
*/
#include "defs.h"
#include "frame.h"
#include "obstack.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "gdbcmd.h"
#include "value.h"
#include "dis-asm.h"
#include "../opcodes/sh-opc.h"
/* Prologue looks like
[mov.l <regs>,@-r15]...
[sts.l pr,@-r15]
[mov.l r14,@-r15]
[mov r15,r14]
*/
#define IS_STS(x) ((x) == 0x4f22)
#define IS_PUSH(x) (((x) & 0xff0f) == 0x2f06)
#define GET_PUSHED_REG(x) (((x) >> 4) & 0xf)
#define IS_MOV_SP_FP(x) ((x) == 0x6ef3)
#define IS_ADD_SP(x) (((x) & 0xff00) == 0x7f00)
/* Skip any prologue before the guts of a function */
CORE_ADDR
sh_skip_prologue (start_pc)
CORE_ADDR start_pc;
{
int w;
w = read_memory_integer (start_pc, 2);
while (IS_STS (w)
|| IS_PUSH (w)
|| IS_MOV_SP_FP (w))
{
start_pc += 2;
w = read_memory_integer (start_pc, 2);
}
return start_pc;
}
/* Disassemble an instruction */
int
print_insn (memaddr, stream)
CORE_ADDR memaddr;
FILE *stream;
{
disassemble_info info;
GDB_INIT_DISASSEMBLE_INFO (info, stream);
return print_insn_sh (memaddr, &info);
}
/* Given a GDB frame, determine the address of the calling function's frame.
This will be used to create a new GDB frame struct, and then
INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame.
For us, the frame address is its stack pointer value, so we look up
the function prologue to determine the caller's sp value, and return it. */
FRAME_ADDR
sh_frame_chain (thisframe)
FRAME thisframe;
{
if (!inside_entry_file (thisframe->pc))
return (read_memory_integer (FRAME_FP (thisframe), 4));
else
return 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. */
void
frame_find_saved_regs (fi, fsr)
struct frame_info *fi;
struct frame_saved_regs *fsr;
{
int where[16];
int rn;
int have_fp = 0;
int depth;
int pc;
int opc;
int insn;
opc = pc = get_pc_function_start (fi->pc);
insn = read_memory_integer (pc, 2);
for (rn = 0; rn < NUM_REGS; rn++)
where[rn] = -1;
depth = 0;
/* Loop around examining the prologue insns, but give up
after 15 of them, since we're getting silly then */
while (pc < opc + 15 * 2)
{
/* See where the registers will be saved to */
if (IS_PUSH (insn))
{
pc += 2;
rn = GET_PUSHED_REG (insn);
where[rn] = depth;
insn = read_memory_integer (pc, 2);
depth += 4;
}
else if (IS_STS (insn))
{
pc += 2;
where[PR_REGNUM] = depth;
insn = read_memory_integer (pc, 2);
depth += 4;
}
else if (IS_ADD_SP (insn))
{
pc += 2;
depth += -((char) (insn & 0xff));
insn = read_memory_integer (pc, 2);
}
else break;
}
/* Now we know how deep things are, we can work out their addresses */
for (rn = 0; rn < NUM_REGS; rn++)
{
if (where[rn] >= 0)
{
if (rn == FP_REGNUM)
have_fp = 1;
fsr->regs[rn] = fi->frame - where[rn] + depth - 4;
}
else
{
fsr->regs[rn] = 0;
}
}
if (have_fp)
{
fsr->regs[SP_REGNUM] = read_memory_integer (fsr->regs[FP_REGNUM], 4);
}
else
{
fsr->regs[SP_REGNUM] = fi->frame - 4;
}
/* Remember the address of the frame pointer */
/* Work out the return pc - either from the saved pr or the pr
value */
if (fsr->regs[PR_REGNUM])
{
fi->return_pc = read_memory_integer (fsr->regs[PR_REGNUM], 4) + 4;
}
else
{
fi->return_pc = read_register (PR_REGNUM) + 4;
}
}
/* initialize the extra info saved in a FRAME */
void
init_extra_frame_info (fromleaf, fi)
int fromleaf;
struct frame_info *fi;
{
struct frame_saved_regs dummy;
frame_find_saved_regs (fi, &dummy);
}
/* Discard from the stack the innermost frame,
restoring all saved registers. */
void
pop_frame ()
{
register FRAME frame = get_current_frame ();
register CORE_ADDR fp;
register int regnum;
struct frame_saved_regs fsr;
struct frame_info *fi;
fi = get_frame_info (frame);
fp = fi->frame;
get_frame_saved_regs (fi, &fsr);
/* Copy regs from where they were saved in the frame */
for (regnum = 0; regnum < NUM_REGS; regnum++)
{
if (fsr.regs[regnum])
{
write_register (regnum, read_memory_integer (fsr.regs[regnum], 4));
}
}
write_register (PC_REGNUM, fi->return_pc);
write_register (SP_REGNUM, fp + 4);
flush_cached_frames ();
set_current_frame (create_new_frame (read_register (FP_REGNUM),
read_pc ()));
}