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sim: mn10300: delete unused exception/exited/debug state 

The syscall path was the only code checking the custom exception state
after recent cleanups.  Once we change that to the common engine halt
function, we can delete that state entirely.

This also helps highlight some other dead code that we can cull.
This commit is contained in:
Mike Frysinger 2015-06-09 22:27:09 +08:00
parent b0e4c8a581
commit 96eaf29ec4
4 changed files with 11 additions and 22 deletions
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9
sim/mn10300/ChangeLog
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@ -1,3 +1,12 @@
2015-06-11 Mike Frysinger <vapier@gentoo.org>
* interp.c (mn10300_debug): Delete.
* mn10300_sim.h (DEBUG_TRACE, DEBUG_VALUES, mn10300_debug): Delete.
(struct _state): Delete exception and exited members.
[_WIN32] (SIGTRAP, SIGQUIT): Delete.
* op_utils.c (do_syscall): Call sim_engine_halt instead of setting
State.exception.
2015-06-11 Mike Frysinger <vapier@gentoo.org>
* mn10300_sim.h (uint8, int8, uint16, int16, uint32, int32): Typedef

1
sim/mn10300/interp.c
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@ -25,7 +25,6 @@
host_callback *mn10300_callback;
int mn10300_debug;
struct _state State;

12
sim/mn10300/mn10300_sim.h
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@ -11,11 +11,6 @@
extern host_callback *mn10300_callback;
extern SIM_DESC simulator;
#define DEBUG_TRACE 0x00000001
#define DEBUG_VALUES 0x00000002
extern int mn10300_debug;
typedef unsigned8 uint8;
typedef signed8 int8;
typedef unsigned16 uint16;
@ -53,8 +48,6 @@ struct _state
dword fd[16]; /* FD0,2,...,30 */
} fpregs;
uint8 *mem; /* main memory */
int exception;
int exited;
/* All internal state modified by signal_exception() that may need to be
rolled back for passing moment-of-exception image back to gdb. */
@ -148,11 +141,6 @@ extern struct simops Simops[];
#define FPU2FS(F,FS) sim_fpu_to32 (&(FS), &(F))
#define FPU2FD(F,FD) sim_fpu_to232 (&((FD).high), &((FD).low), &(F))
#ifdef _WIN32
#define SIGTRAP 5
#define SIGQUIT 3
#endif
#define FETCH32(a,b,c,d) \
((a)+((b)<<8)+((c)<<16)+((d)<<24))

11
sim/mn10300/op_utils.c
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@ -194,15 +194,8 @@ do_syscall (void)
if ( FUNC == TARGET_SYS_exit )
{
/* EXIT - caller can look in PARM1 to work out the reason */
if (PARM1 == 0xdead)
State.exception = SIGABRT;
else
{
sim_engine_halt (simulator, STATE_CPU (simulator, 0), NULL, PC,
sim_exited, PARM1);
State.exception = SIGQUIT;
}
State.exited = 1;
sim_engine_halt (simulator, STATE_CPU (simulator, 0), NULL, PC,
(PARM1 == 0xdead ? SIM_SIGABRT : sim_exited), PARM1);
}
else
{