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authorHans-Peter Nilsson <hp@axis.com>2009-01-03 18:37:31 +0000
committerHans-Peter Nilsson <hp@axis.com>2009-01-03 18:37:31 +0000
commite7fcaaa45eae79db8de22bf7b07bad159de9c3c6 (patch)
tree5c9bde30aa19bc53ee11408d30936c7c6f94a60d /sim/cris
parente1c37eb57ebf5a431a508918321a1f07fc3025ac (diff)
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* cris/traps.c (TARGET_SYS_access, TARGET_R_OK, TARGET_W_OK)
(TARGET_X_OK, TARGET_F_OK): Define. (cris_break_13_handler) <case TARGET_SYS_access>: New case.
Diffstat (limited to 'sim/cris')
-rw-r--r--sim/cris/traps.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/sim/cris/traps.c b/sim/cris/traps.c
index 044d6c6..afe5bfb 100644
--- a/sim/cris/traps.c
+++ b/sim/cris/traps.c
@@ -65,6 +65,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#define TARGET_SYS_time 13
#define TARGET_SYS_lseek 19
#define TARGET_SYS_getpid 20
+#define TARGET_SYS_access 33
#define TARGET_SYS_kill 37
#define TARGET_SYS_rename 38
#define TARGET_SYS_pipe 42
@@ -244,6 +245,12 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* From linux/limits.h. */
#define TARGET_PIPE_BUF 4096
+/* From unistd.h. */
+#define TARGET_R_OK 4
+#define TARGET_W_OK 2
+#define TARGET_X_OK 1
+#define TARGET_F_OK 0
+
static const char stat_map[] =
"st_dev,2:space,10:space,4:st_mode,4:st_nlink,4:st_uid,4"
":st_gid,4:st_rdev,2:space,10:st_size,8:st_blksize,4:st_blocks,4"
@@ -2648,6 +2655,56 @@ cris_break_13_handler (SIM_CPU *current_cpu, USI callnum, USI arg1,
break;
}
+ case TARGET_SYS_access:
+ {
+ SI path = arg1;
+ SI mode = arg2;
+ char *pbuf = xmalloc (SIM_PATHMAX);
+ int i;
+ int o = 0;
+ int hmode = 0;
+
+ if (sim_core_read_unaligned_1 (current_cpu, pc, 0, path) == '/')
+ {
+ strcpy (pbuf, simulator_sysroot);
+ o += strlen (simulator_sysroot);
+ }
+
+ for (i = 0; i + o < SIM_PATHMAX; i++)
+ {
+ pbuf[i + o]
+ = sim_core_read_unaligned_1 (current_cpu, pc, 0, path + i);
+ if (pbuf[i + o] == 0)
+ break;
+ }
+
+ if (i + o == SIM_PATHMAX)
+ {
+ retval = -cb_host_to_target_errno (cb, ENAMETOOLONG);
+ break;
+ }
+
+ /* Assert that we don't get calls for files for which we
+ don't have support. */
+ if (strncmp (pbuf + strlen (simulator_sysroot),
+ "/proc/", 6) == 0)
+ abort ();
+#define X_AFLAG(x) if (mode & TARGET_ ## x) hmode |= x
+ X_AFLAG (R_OK);
+ X_AFLAG (W_OK);
+ X_AFLAG (X_OK);
+ X_AFLAG (F_OK);
+#undef X_AFLAG
+
+ if (access (pbuf, hmode) != 0)
+ retval = -cb_host_to_target_errno (cb, errno);
+ else
+ retval = 0;
+
+ free (pbuf);
+ break;
+ }
+
case TARGET_SYS_readlink:
{
SI path = arg1;