* remote-sim.c: first attempt at general simulator interface
* remote-hms.c: whitespace * h8300-tdep.c: (h8300_skip_prologue, examine_prologue): understand new stack layout. (print_register_hook): print ccr register in a fancy way.
This commit is contained in:
Steve Chamberlain
parent
fb6e675f95
commit
ec25d19bd6
6 changed files with 1167 additions and 811 deletions
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@ -210,6 +210,7 @@ remote-es1800.c
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remote-hms.c
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remote-mm.c
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remote-nindy.c
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remote-sim.c
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remote-st2000.c
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remote-vx.c
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remote.c
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@ -1,3 +1,11 @@
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Sun Jan 3 14:24:56 1993 Steve Chamberlain (sac@thepub.cygnus.com)
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* remote-sim.c: first attempt at general simulator interface
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* remote-hms.c: whitespace
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* h8300-tdep.c: (h8300_skip_prologue, examine_prologue):
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understand new stack layout. (print_register_hook): print ccr
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register in a fancy way.
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Sun Jan 3 14:16:10 1993 Fred Fish (fnf@cygnus.com)
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* eval.c (language.h): Include.
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393
gdb/h8300-tdep.c
393
gdb/h8300-tdep.c
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@ -17,9 +17,9 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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/*
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Contributed by Steve Chamberlain
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sac@cygnus.com
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sac@cygnus.com
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*/
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#include "defs.h"
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@ -29,61 +29,80 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define UNSIGNED_SHORT(X) ((X) & 0xffff)
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/* an easy to debug H8 stack frame looks like:
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0x6df2 push r2
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0x6df3 push r3
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0x6df6 push r6
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0x mov.w r7,r6
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subs stuff,sp mov.w #x,r5
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subs r5,sp
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0x6df6 push r6
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0x0d76 mov.w r7,r6
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0x6dfn push reg
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0x7905 nnnn mov.w #n,r5 or 0x1b87 subs #2,sp
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0x1957 sub.w r5,sp
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*/
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#define IS_PUSH(x) ((x & 0xff00)==0x6d00)
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#define IS_PUSH_FP(x) (x == 0x6df6)
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#define IS_MOVE_FP(x) (x == 0x0d76)
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#define IS_MOV_SP_FP(x) (x == 0x0d76)
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#define IS_SUB2_SP(x) (x==0x1b87)
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#define IS_MOVK_R5(x) (x==0x7905)
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CORE_ADDR examine_prologue();
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#define IS_SUB_R5SP(x) (x==0x1957)
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CORE_ADDR examine_prologue ();
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void frame_find_saved_regs ();
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CORE_ADDR h8300_skip_prologue(start_pc)
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CORE_ADDR start_pc;
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void frame_find_saved_regs ();
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CORE_ADDR
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h8300_skip_prologue (start_pc)
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CORE_ADDR start_pc;
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{
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/* Skip past all push insns */
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short int w;
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w = read_memory_short(start_pc);
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while (IS_PUSH(w))
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{
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start_pc+=2;
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w = read_memory_short(start_pc);
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}
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/* Skip past a move to FP */
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if (IS_MOVE_FP(w)) {
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start_pc +=2 ;
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w = read_memory_short(start_pc);
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w = read_memory_short (start_pc);
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/* Skip past all push insns */
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while (IS_PUSH_FP (w))
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{
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start_pc += 2;
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w = read_memory_short (start_pc);
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}
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return start_pc;
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}
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/* Skip past a move to FP */
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if (IS_MOVE_FP (w))
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{
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start_pc += 2;
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w = read_memory_short (start_pc);
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}
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/* Skip the stack adjust */
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if (IS_MOVK_R5 (w))
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{
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start_pc += 2;
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w = read_memory_short (start_pc);
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}
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if (IS_SUB_R5SP (w))
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{
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start_pc += 2;
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w = read_memory_short (start_pc);
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}
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while (IS_SUB2_SP (w))
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{
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start_pc += 2;
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w = read_memory_short (start_pc);
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}
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return start_pc;
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}
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int
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print_insn(memaddr, stream)
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CORE_ADDR memaddr;
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FILE *stream;
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print_insn (memaddr, stream)
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CORE_ADDR memaddr;
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FILE *stream;
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{
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/* Nothing is bigger than 8 bytes */
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char data[8];
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read_memory (memaddr, data, sizeof(data));
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return print_insn_h8300(memaddr, data, stream);
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char data[8];
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read_memory (memaddr, data, sizeof (data));
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return print_insn_h8300 (memaddr, data, stream);
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}
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/* Given a GDB frame, determine the address of the calling function's frame.
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This will be used to create a new GDB frame struct, and then
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INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame.
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@ -97,11 +116,9 @@ FRAME_CHAIN (thisframe)
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{
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frame_find_saved_regs (thisframe, (struct frame_saved_regs *) 0);
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return thisframe->fsr->regs[SP_REGNUM];
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return thisframe->fsr->regs[SP_REGNUM];
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}
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/* Put here the code to store, into a struct frame_saved_regs,
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the addresses of the saved registers of frame described by FRAME_INFO.
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This includes special registers such as pc and fp saved in special
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@ -128,18 +145,19 @@ frame_find_saved_regs (fi, fsr)
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if (!fi->fsr)
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{
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cache_fsr = (struct frame_saved_regs *)
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obstack_alloc (&frame_cache_obstack,
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sizeof (struct frame_saved_regs));
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obstack_alloc (&frame_cache_obstack,
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sizeof (struct frame_saved_regs));
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bzero (cache_fsr, sizeof (struct frame_saved_regs));
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fi->fsr = cache_fsr;
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/* Find the start and end of the function prologue. If the PC
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is in the function prologue, we only consider the part that
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has executed already. */
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ip = get_pc_function_start (fi->pc);
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sal = find_pc_line (ip, 0);
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limit = (sal.end && sal.end < fi->pc) ? sal.end: fi->pc;
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limit = (sal.end && sal.end < fi->pc) ? sal.end : fi->pc;
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/* This will fill in fields in *fi as well as in cache_fsr. */
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examine_prologue (ip, limit, fi->frame, cache_fsr, fi);
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@ -148,55 +166,37 @@ frame_find_saved_regs (fi, fsr)
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if (fsr)
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*fsr = *fi->fsr;
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}
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/* Fetch the instruction at ADDR, returning 0 if ADDR is beyond LIM or
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is not the address of a valid instruction, the address of the next
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instruction beyond ADDR otherwise. *PWORD1 receives the first word
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of the instruction.*/
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CORE_ADDR
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NEXT_PROLOGUE_INSN(addr, lim, pword1)
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CORE_ADDR addr;
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CORE_ADDR lim;
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short *pword1;
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NEXT_PROLOGUE_INSN (addr, lim, pword1)
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CORE_ADDR addr;
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CORE_ADDR lim;
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short *pword1;
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{
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if (addr < lim+8)
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{
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read_memory (addr, pword1, sizeof(*pword1));
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SWAP_TARGET_AND_HOST (pword1, sizeof (short));
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return addr + 2;
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}
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if (addr < lim + 8)
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{
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read_memory (addr, pword1, sizeof (*pword1));
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SWAP_TARGET_AND_HOST (pword1, sizeof (short));
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return addr + 2;
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}
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return 0;
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}
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/* Examine the prologue of a function. `ip' points to the first instruction.
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`limit' is the limit of the prologue (e.g. the addr of the first
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`limit' is the limit of the prologue (e.g. the addr of the first
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linenumber, or perhaps the program counter if we're stepping through).
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`frame_sp' is the stack pointer value in use in this frame.
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`frame_sp' is the stack pointer value in use in this frame.
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`fsr' is a pointer to a frame_saved_regs structure into which we put
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info about the registers saved by this frame.
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info about the registers saved by this frame.
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`fi' is a struct frame_info pointer; we fill in various fields in it
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to reflect the offsets of the arg pointer and the locals pointer. */
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/* We will find two sorts of prologue, framefull and non framefull:
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push r2
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push r3
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push fp
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mov sp,fp
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stack_ad
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and
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push x
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push y
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stack_ad
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*/
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static CORE_ADDR
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examine_prologue (ip, limit, after_prolog_fp, fsr, fi)
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register CORE_ADDR ip;
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@ -209,107 +209,102 @@ examine_prologue (ip, limit, after_prolog_fp, fsr, fi)
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int r;
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int i;
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int have_fp = 0;
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register int src;
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register struct pic_prologue_code *pcode;
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INSN_WORD insn_word;
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int size, offset;
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unsigned int reg_save_depth = 2; /* Number of things pushed onto
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unsigned int reg_save_depth = 2; /* Number of things pushed onto
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stack, starts at 2, 'cause the
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PC is already there */
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unsigned int auto_depth = 0; /* Number of bytes of autos */
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char in_frame[NUM_REGS]; /* One for each reg */
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memset(in_frame, 1, NUM_REGS);
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if (after_prolog_fp == 0) {
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after_prolog_fp = read_register(SP_REGNUM);
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}
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if (ip == 0 || ip & ~0xffff) return 0;
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char in_frame[NUM_REGS]; /* One for each reg */
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memset (in_frame, 1, NUM_REGS);
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for (r = 0; r < NUM_REGS; r++)
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{
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fsr->regs[r] = 0;
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}
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if (after_prolog_fp == 0)
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{
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after_prolog_fp = read_register (SP_REGNUM);
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}
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if (ip == 0 || ip & ~0xffff)
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return 0;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn_word);
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/* Skip over any push instructions, and remember where they were saved */
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/* Skip over any fp push instructions */
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fsr->regs[6] = after_prolog_fp;
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while (next_ip && IS_PUSH_FP (insn_word))
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{
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ip = next_ip;
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while (next_ip && IS_PUSH(insn_word))
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{
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ip = next_ip;
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in_frame[insn_word & 0x7] = reg_save_depth;
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next_ip = NEXT_PROLOGUE_INSN(ip, limit, &insn_word);
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reg_save_depth +=2;
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}
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in_frame[insn_word & 0x7] = reg_save_depth;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn_word);
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reg_save_depth += 2;
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}
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/* Is this a move into the fp */
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if (next_ip && IS_MOV_SP_FP(insn_word))
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{
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN(ip, limit, &insn_word);
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have_fp = 1;
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}
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if (next_ip && IS_MOV_SP_FP (insn_word))
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{
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn_word);
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have_fp = 1;
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}
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/* Skip over any stack adjustment, happens either with a number of
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sub#2,sp or a mov #x,r5 sub r5,sp */
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if (next_ip && IS_SUB2_SP(insn_word))
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{
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while (next_ip && IS_SUB2_SP(insn_word))
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if (next_ip && IS_SUB2_SP (insn_word))
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{
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auto_depth +=2 ;
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN(ip, limit, &insn_word);
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while (next_ip && IS_SUB2_SP (insn_word))
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{
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auto_depth += 2;
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn_word);
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}
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}
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}
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else
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{
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if (next_ip && IS_MOVK_R5(insn_word))
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else
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{
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if (next_ip && IS_MOVK_R5 (insn_word))
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{
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn_word);
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auto_depth += insn_word;
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next_ip = NEXT_PROLOGUE_INSN (next_ip, limit, &insn_word);
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auto_depth += insn_word;
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}
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}
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/* Work out which regs are stored where */
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while (next_ip && IS_PUSH (insn_word))
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{
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN(ip, limit, &insn_word);
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auto_depth += insn_word;
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ip +=4;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn_word);
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fsr->regs[r] = after_prolog_fp + auto_depth;
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auto_depth += 2;
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}
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}
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/* The args are always reffed based from the stack pointer */
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fi->args_pointer = after_prolog_fp - auto_depth;
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fi->args_pointer = after_prolog_fp;
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/* Locals are always reffed based from the fp */
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fi->locals_pointer = after_prolog_fp ;
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fi->locals_pointer = after_prolog_fp;
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/* The PC is at a known place */
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fi->from_pc = read_memory_short(after_prolog_fp + reg_save_depth-2 );
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fi->from_pc = read_memory_short (after_prolog_fp + 2);
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/* Rememeber any others too */
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in_frame[PC_REGNUM] = 0;
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for (r = 0; r < NUM_REGS; r++)
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{
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if (in_frame[r] != 1)
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{
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fsr->regs[r] = after_prolog_fp + reg_save_depth - in_frame[r] -2;
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}
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else
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{
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fsr->regs[r] = 0;
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}
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}
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if (have_fp)
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/* We keep the old FP in the SP spot */
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fsr->regs[SP_REGNUM] = (read_memory_short(fsr->regs[6])) ;
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else
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fsr->regs[SP_REGNUM] = after_prolog_fp + reg_save_depth;
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if (have_fp)
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/* We keep the old FP in the SP spot */
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fsr->regs[SP_REGNUM] = (read_memory_short (fsr->regs[6]));
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else
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fsr->regs[SP_REGNUM] = after_prolog_fp + auto_depth;
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return (ip);
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}
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|
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@ -322,8 +317,9 @@ init_extra_frame_info (fromleaf, fi)
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fi->args_pointer = 0; /* Unknown */
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fi->locals_pointer = 0; /* Unknown */
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fi->from_pc = 0;
|
||||
|
||||
|
||||
}
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|
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/* Return the saved PC from this frame.
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|
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If the frame has a memory copy of SRP_REGNUM, use that. If not,
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|
|
@ -331,23 +327,23 @@ init_extra_frame_info (fromleaf, fi)
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CORE_ADDR
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frame_saved_pc (frame)
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FRAME frame;
|
||||
FRAME frame;
|
||||
|
||||
{
|
||||
return frame->from_pc;
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||||
}
|
||||
|
||||
|
||||
CORE_ADDR
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frame_locals_address (fi)
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||||
struct frame_info *fi;
|
||||
{
|
||||
if (!fi->locals_pointer)
|
||||
{
|
||||
struct frame_saved_regs ignore;
|
||||
get_frame_saved_regs(fi, &ignore);
|
||||
if (!fi->locals_pointer)
|
||||
{
|
||||
struct frame_saved_regs ignore;
|
||||
|
||||
}
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||||
get_frame_saved_regs (fi, &ignore);
|
||||
|
||||
}
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||||
return fi->locals_pointer;
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||||
}
|
||||
|
||||
|
|
@ -358,38 +354,87 @@ CORE_ADDR
|
|||
frame_args_address (fi)
|
||||
struct frame_info *fi;
|
||||
{
|
||||
if (!fi->args_pointer)
|
||||
{
|
||||
struct frame_saved_regs ignore;
|
||||
get_frame_saved_regs(fi, &ignore);
|
||||
if (!fi->args_pointer)
|
||||
{
|
||||
struct frame_saved_regs ignore;
|
||||
|
||||
get_frame_saved_regs (fi, &ignore);
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return fi->args_pointer;
|
||||
}
|
||||
|
||||
|
||||
void h8300_pop_frame()
|
||||
void
|
||||
h8300_pop_frame ()
|
||||
{
|
||||
unsigned regnum;
|
||||
struct frame_saved_regs fsr;
|
||||
struct frame_info *fi;
|
||||
|
||||
FRAME frame = get_current_frame();
|
||||
fi = get_frame_info(frame);
|
||||
get_frame_saved_regs(fi, &fsr);
|
||||
FRAME frame = get_current_frame ();
|
||||
|
||||
for (regnum = 0; regnum < NUM_REGS; regnum ++)
|
||||
{
|
||||
if(fsr.regs[regnum])
|
||||
fi = get_frame_info (frame);
|
||||
get_frame_saved_regs (fi, &fsr);
|
||||
|
||||
for (regnum = 0; regnum < NUM_REGS; regnum++)
|
||||
{
|
||||
write_register(regnum, read_memory_short (fsr.regs[regnum]));
|
||||
if (fsr.regs[regnum])
|
||||
{
|
||||
write_register (regnum, read_memory_short (fsr.regs[regnum]));
|
||||
}
|
||||
|
||||
flush_cached_frames ();
|
||||
set_current_frame (create_new_frame (read_register (FP_REGNUM),
|
||||
read_pc ()));
|
||||
|
||||
}
|
||||
|
||||
flush_cached_frames();
|
||||
set_current_frame(create_new_frame(read_register(FP_REGNUM),
|
||||
read_pc()));
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
print_register_hook (regno)
|
||||
{
|
||||
if (regno == 8)
|
||||
{
|
||||
/* CCR register */
|
||||
|
||||
int C, Z, N, V;
|
||||
unsigned char b[2];
|
||||
unsigned char l;
|
||||
|
||||
read_relative_register_raw_bytes (regno, b);
|
||||
l = b[1];
|
||||
printf ("\t");
|
||||
printf ("I-%d - ", (l & 0x80) != 0);
|
||||
printf ("H-%d - ", (l & 0x20) != 0);
|
||||
N = (l & 0x8) != 0;
|
||||
Z = (l & 0x4) != 0;
|
||||
V = (l & 0x2) != 0;
|
||||
C = (l & 0x1) != 0;
|
||||
printf ("N-%d ", N);
|
||||
printf ("Z-%d ", Z);
|
||||
printf ("V-%d ", V);
|
||||
printf ("C-%d ", C);
|
||||
if ((C | Z) == 0)
|
||||
printf ("u> ");
|
||||
if ((C | Z) == 1)
|
||||
printf ("u<= ");
|
||||
if ((C == 0))
|
||||
printf ("u>= ");
|
||||
if (C == 1)
|
||||
printf ("u< ");
|
||||
if (Z == 0)
|
||||
printf ("!= ");
|
||||
if (Z == 1)
|
||||
printf ("== ");
|
||||
if ((N ^ V) == 0)
|
||||
printf (">= ");
|
||||
if ((N ^ V) == 1)
|
||||
printf ("< ");
|
||||
if ((Z | (N ^ V)) == 0)
|
||||
printf ("> ");
|
||||
if ((Z | (N ^ V)) == 1)
|
||||
printf ("<= ");
|
||||
}
|
||||
}
|
||||
|
|
|
|||
1269
gdb/remote-hms.c
1269
gdb/remote-hms.c
File diff suppressed because it is too large
Load diff
293
gdb/remote-sim.c
Normal file
293
gdb/remote-sim.c
Normal file
|
|
@ -0,0 +1,293 @@
|
|||
/* Remote debugging interface for generalized simulator
|
||||
Copyright 1992 Free Software Foundation, Inc.
|
||||
Contributed by Cygnus Support. Written by Steve Chamberlain
|
||||
(sac@cygnus.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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
#include "defs.h"
|
||||
#include "inferior.h"
|
||||
#include "wait.h"
|
||||
#include "value.h"
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <fcntl.h>
|
||||
#include <signal.h>
|
||||
#include <setjmp.h>
|
||||
#include <errno.h>
|
||||
#include "terminal.h"
|
||||
#include "target.h"
|
||||
#include "gdbcore.h"
|
||||
|
||||
/* Forward data declarations */
|
||||
extern struct target_ops sim_ops; /* Forward declaration */
|
||||
|
||||
int
|
||||
sim_write_inferior_memory (memaddr, myaddr, len)
|
||||
CORE_ADDR memaddr;
|
||||
unsigned char *myaddr;
|
||||
int len;
|
||||
{
|
||||
return sim_write(memaddr, myaddr, len);
|
||||
}
|
||||
|
||||
static int
|
||||
store_register(regno)
|
||||
int regno;
|
||||
{
|
||||
if (regno == -1)
|
||||
{
|
||||
for (regno = 0; regno < NUM_REGS; regno++)
|
||||
store_register(regno);
|
||||
}
|
||||
else
|
||||
{
|
||||
sim_store_register(regno, read_register(regno));
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Download a file specified in 'args', to the sim.
|
||||
*/
|
||||
static void
|
||||
sim_load(args,fromtty)
|
||||
char *args;
|
||||
int fromtty;
|
||||
{
|
||||
bfd *abfd;
|
||||
asection *s;
|
||||
|
||||
inferior_pid = 0;
|
||||
abfd = bfd_openr(args, (char*)0);
|
||||
|
||||
if (!abfd)
|
||||
{
|
||||
printf_filtered("Unable to open file %s\n", args);
|
||||
return;
|
||||
}
|
||||
|
||||
if (bfd_check_format(abfd, bfd_object) ==0)
|
||||
{
|
||||
printf_filtered("File is not an object file\n");
|
||||
return ;
|
||||
}
|
||||
|
||||
s = abfd->sections;
|
||||
while (s != (asection *)NULL)
|
||||
{
|
||||
if (s->flags & SEC_LOAD)
|
||||
{
|
||||
int i;
|
||||
int delta = 4096;
|
||||
char *buffer = xmalloc(delta);
|
||||
printf_filtered("%s\t: 0x%4x .. 0x%4x ",
|
||||
s->name, s->vma, s->vma + s->_raw_size);
|
||||
for (i = 0; i < s->_raw_size; i+= delta)
|
||||
{
|
||||
int sub_delta = delta;
|
||||
if (sub_delta > s->_raw_size - i)
|
||||
sub_delta = s->_raw_size - i ;
|
||||
|
||||
bfd_get_section_contents(abfd, s, buffer, i, sub_delta);
|
||||
sim_write_inferior_memory(s->vma + i, buffer, sub_delta);
|
||||
printf_filtered("*");
|
||||
fflush(stdout);
|
||||
}
|
||||
printf_filtered( "\n");
|
||||
free(buffer);
|
||||
}
|
||||
s = s->next;
|
||||
}
|
||||
|
||||
sim_store_register(PC_REGNUM, abfd->start_address);
|
||||
}
|
||||
|
||||
/* This is called not only when we first attach, but also when the
|
||||
user types "run" after having attached. */
|
||||
void
|
||||
sim_create_inferior (execfile, args, env)
|
||||
char *execfile;
|
||||
char *args;
|
||||
char **env;
|
||||
{
|
||||
int entry_pt;
|
||||
|
||||
if (args && *args)
|
||||
error ("Can't pass arguments to remote sim process.");
|
||||
|
||||
if (execfile == 0 || exec_bfd == 0)
|
||||
error ("No exec file specified");
|
||||
|
||||
entry_pt = (int) bfd_get_start_address (exec_bfd);
|
||||
init_wait_for_inferior ();
|
||||
insert_breakpoints ();
|
||||
proceed(entry_pt, -1, 0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static int
|
||||
sim_open (name, from_tty)
|
||||
char *name;
|
||||
int from_tty;
|
||||
{
|
||||
if(name == 0)
|
||||
{
|
||||
name = "";
|
||||
}
|
||||
|
||||
push_target (&sim_ops);
|
||||
target_fetch_registers(-1);
|
||||
printf_filtered("Connected to the simulator.\n");
|
||||
}
|
||||
|
||||
/* Close out all files and local state before this target loses control. */
|
||||
|
||||
static int
|
||||
sim_close (quitting)
|
||||
int quitting;
|
||||
{
|
||||
}
|
||||
|
||||
/* Terminate the open connection to the remote debugger.
|
||||
Use this when you want to detach and do something else
|
||||
with your gdb. */
|
||||
int
|
||||
sim_detach (args,from_tty)
|
||||
char *args;
|
||||
int from_tty;
|
||||
{
|
||||
pop_target(); /* calls sim_close to do the real work */
|
||||
if (from_tty)
|
||||
printf_filtered ("Ending remote %s debugging\n", target_shortname);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Tell the remote machine to resume. */
|
||||
|
||||
|
||||
/* Wait until the remote machine stops, then return,
|
||||
storing status in STATUS just as `wait' would. */
|
||||
|
||||
int
|
||||
sim_wait (status)
|
||||
WAITTYPE *status;
|
||||
{
|
||||
WSETSTOP(*status, sim_stop_signal());
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
fetch_register(regno)
|
||||
int regno;
|
||||
{
|
||||
if (regno == -1)
|
||||
{
|
||||
for (regno = 0; regno < NUM_REGS; regno++)
|
||||
fetch_register(regno);
|
||||
}
|
||||
else
|
||||
{
|
||||
char buf[MAX_REGISTER_RAW_SIZE];
|
||||
sim_fetch_register(regno, buf);
|
||||
supply_register(regno, buf);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
sim_xfer_inferior_memory(memaddr, myaddr, len, write, target)
|
||||
CORE_ADDR memaddr;
|
||||
char *myaddr;
|
||||
int len;
|
||||
int write;
|
||||
struct target_ops *target; /* ignored */
|
||||
{
|
||||
if (write)
|
||||
{
|
||||
sim_write(memaddr, myaddr, len);
|
||||
}
|
||||
else
|
||||
{
|
||||
sim_read(memaddr, myaddr, len);
|
||||
}
|
||||
return len;
|
||||
}
|
||||
|
||||
|
||||
/* This routine is run as a hook, just before the main command loop is
|
||||
entered. If gdb is configured for the H8, but has not had its
|
||||
target specified yet, this will loop prompting the user to do so.
|
||||
*/
|
||||
|
||||
void
|
||||
sim_before_main_loop ()
|
||||
{
|
||||
push_target (&sim_ops);
|
||||
}
|
||||
|
||||
|
||||
static int rem_resume(a,b)
|
||||
{
|
||||
sim_resume(a,b);
|
||||
return 0;
|
||||
}
|
||||
|
||||
pstore()
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
/* Define the target subroutine names */
|
||||
|
||||
struct target_ops sim_ops =
|
||||
{
|
||||
"sim", "simulator",
|
||||
"Use the simulator",
|
||||
sim_open, sim_close,
|
||||
0, sim_detach, rem_resume, sim_wait, /* attach */
|
||||
fetch_register, store_register,
|
||||
pstore,
|
||||
sim_xfer_inferior_memory,
|
||||
0,
|
||||
0, 0, /* Breakpoints */
|
||||
0, 0, 0, 0, 0, /* Terminal handling */
|
||||
pstore,
|
||||
sim_load,
|
||||
0, /* lookup_symbol */
|
||||
sim_create_inferior, /* create_inferior */
|
||||
pstore, /* mourn_inferior FIXME */
|
||||
0, /* can_run */
|
||||
0, /* notice_signals */
|
||||
process_stratum, 0, /* next */
|
||||
1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
|
||||
0,0, /* Section pointers */
|
||||
OPS_MAGIC, /* Always the last thing */
|
||||
};
|
||||
|
||||
/***********************************************************************/
|
||||
|
||||
void
|
||||
_initialize_remote_sim ()
|
||||
{
|
||||
add_target (&sim_ops);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -77,17 +77,8 @@ UNSIGNED_SHORT(read_memory_integer (read_register (SP_REGNUM), 2))
|
|||
|
||||
#define INNER_THAN <
|
||||
|
||||
/* Sequence of bytes for breakpoint instruction.
|
||||
This is a TRAP instruction. The last 4 bits (0xf below) is the
|
||||
vector. Systems which don't use 0xf should define BPT_VECTOR
|
||||
themselves before including this file. */
|
||||
|
||||
|
||||
#define BPT_VECTOR 0xf
|
||||
|
||||
|
||||
|
||||
#define BREAKPOINT {0x4e, (0x40 | BPT_VECTOR)}
|
||||
#define BREAKPOINT {0x53, 0x00}
|
||||
|
||||
|
||||
/* If your kernel resets the pc after the trap happens you may need to
|
||||
|
|
@ -305,3 +296,6 @@ typedef unsigned short INSN_WORD;
|
|||
#define read_memory_short(x) (read_memory_integer(x,2) & 0xffff)
|
||||
#define DONT_USE_REMOTE
|
||||
|
||||
|
||||
#define PRINT_REGISTER_HOOK(regno) print_register_hook(regno)
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue