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cris/traps.c (TARGET_O_RDONLY, TARGET_O_WRONLY): Define.

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(open_map): Use TARGET_O_ACCMODE, TARGET_O_RDONLY and
	TARGET_O_WRONLY.
	(cris_break_13_handler) <case TARGET_SYS_fcntl>: Add support for
	F_GETFL on fd 0, 1 and 2.
This commit is contained in:
Hans-Peter Nilsson 2005-11-20 14:52:36 +00:00
parent 9d29849ad8
commit 8b9b39f44a
2 changed files with 33 additions and 6 deletions
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8
sim/ChangeLog
View File

@ -1,3 +1,11 @@
2005-11-20 Hans-Peter Nilsson <hp@axis.com>
cris/traps.c (TARGET_O_RDONLY, TARGET_O_WRONLY): Define.
(open_map): Use TARGET_O_ACCMODE, TARGET_O_RDONLY and
TARGET_O_WRONLY.
(cris_break_13_handler) <case TARGET_SYS_fcntl>: Add support for
F_GETFL on fd 0, 1 and 2.
2005-11-17 Hans-Peter Nilsson <hp@axis.com>
* cris/sim-main.h (struct _sim_cpu): New members last_syscall,

31
sim/cris/traps.c
View File

@ -664,18 +664,22 @@ static const CB_TARGET_DEFS_MAP errno_map[] =
installation and removing synonyms and unnecessary items. Don't
forget the end-marker. */
/* This one we treat specially, as it's used in the fcntl syscall. */
#define TARGET_O_ACCMODE 3
/* These we treat specially, as they're used in the fcntl F_GETFL
syscall. For consistency, open_map is also manually edited to use
these macros. */
#define TARGET_O_ACCMODE 0x3
#define TARGET_O_RDONLY 0x0
#define TARGET_O_WRONLY 0x1
static const CB_TARGET_DEFS_MAP open_map[] = {
#ifdef O_ACCMODE
{ O_ACCMODE, 0x3 },
{ O_ACCMODE, TARGET_O_ACCMODE },
#endif
#ifdef O_RDONLY
{ O_RDONLY, 0x0 },
{ O_RDONLY, TARGET_O_RDONLY },
#endif
#ifdef O_WRONLY
{ O_WRONLY, 0x1 },
{ O_WRONLY, TARGET_O_WRONLY },
#endif
#ifdef O_RDWR
{ O_RDWR, 0x2 },
@ -1429,9 +1433,24 @@ cris_break_13_handler (SIM_CPU *current_cpu, USI callnum, USI arg1,
retval = current_cpu->last_open_flags & TARGET_O_ACCMODE;
break;
}
else if (arg1 == 0)
{
/* Because we can't freopen fd:s 0, 1, 2 to mean
something else than stdin, stdout and stderr
(sim/common/syscall.c:cb_syscall special cases fd
0, 1 and 2), we know what flags that we can
sanely return for these fd:s. */
retval = TARGET_O_RDONLY;
break;
}
else if (arg1 == 1 || arg1 == 2)
{
retval = TARGET_O_WRONLY;
break;
}
/* FALLTHROUGH */
/* Abort for all other cases. */
default:
/* Abort for all other cases. */
sim_io_eprintf (sd, "Unimplemented %s syscall "
"(fd: 0x%lx: cmd: 0x%lx arg: 0x%lx)\n",
callnum == TARGET_SYS_fcntl