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authorAnthony Green <green@moxielogic.com>2019-12-14 05:23:20 -0500
committerAnthony Green <green@moxielogic.com>2019-12-14 05:33:39 -0500
commitfb46334198d8d4f82133033758cb75f086d864ad (patch)
treea1b9c5c9d574ad58a94e7c8240edae8a4a22feec /sim/moxie
parentff8577f64987a898e1dc5eb6afb66a404fb7bb16 (diff)
downloadbinutils-gdb-fb46334198d8d4f82133033758cb75f086d864ad.tar.gz
Add unlink support to moxie simulator
This change adds support for the unlink system call, which is required by the GCC testsuite. It also switches read/write/open system calls to use the sim_io_* functions. 2019-12-14 Anthony Green <green@moxielogic.com> * interp.c (sim_engine_run): Make use of sim_io_* functions for read/write/open system calls. Implement the unlink system call.
Diffstat (limited to 'sim/moxie')
-rw-r--r--sim/moxie/ChangeLog5
-rw-r--r--sim/moxie/interp.c19
2 files changed, 21 insertions, 3 deletions
diff --git a/sim/moxie/ChangeLog b/sim/moxie/ChangeLog
index 86fb3341081..9f21b3c90ed 100644
--- a/sim/moxie/ChangeLog
+++ b/sim/moxie/ChangeLog
@@ -1,3 +1,8 @@
+2019-12-14 Anthony Green <green@moxielogic.com>
+
+ * interp.c (sim_engine_run): Make use of sim_io_* functions for
+ read/write/open system calls. Implement the unlink system call.
+
2017-09-06 John Baldwin <jhb@FreeBSD.org>
* configure: Regenerate.
diff --git a/sim/moxie/interp.c b/sim/moxie/interp.c
index ecea5b42f38..fe770093e53 100644
--- a/sim/moxie/interp.c
+++ b/sim/moxie/interp.c
@@ -32,6 +32,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "sim-main.h"
#include "sim-base.h"
#include "sim-options.h"
+#include "sim-io.h"
typedef int word;
typedef unsigned int uword;
@@ -942,9 +943,10 @@ sim_engine_run (SIM_DESC sd,
char fname[1024];
int mode = (int) convert_target_flags ((unsigned) cpu.asregs.regs[3]);
int perm = (int) cpu.asregs.regs[4];
- int fd = open (fname, mode, perm);
+ int fd;
sim_core_read_buffer (sd, scpu, read_map, fname,
cpu.asregs.regs[2], 1024);
+ fd = sim_io_open (sd, fname, mode);
/* FIXME - set errno */
cpu.asregs.regs[2] = fd;
break;
@@ -954,7 +956,7 @@ sim_engine_run (SIM_DESC sd,
int fd = cpu.asregs.regs[2];
unsigned len = (unsigned) cpu.asregs.regs[4];
char *buf = malloc (len);
- cpu.asregs.regs[2] = read (fd, buf, len);
+ cpu.asregs.regs[2] = sim_io_read (sd, fd, buf, len);
sim_core_write_buffer (sd, scpu, write_map, buf,
cpu.asregs.regs[3], len);
free (buf);
@@ -968,11 +970,22 @@ sim_engine_run (SIM_DESC sd,
str = malloc (len);
sim_core_read_buffer (sd, scpu, read_map, str,
cpu.asregs.regs[3], len);
- count = write (cpu.asregs.regs[2], str, len);
+ count = sim_io_write (sd, cpu.asregs.regs[2], str, len);
free (str);
cpu.asregs.regs[2] = count;
break;
}
+ case 0x7: /* SYS_unlink */
+ {
+ char fname[1024];
+ int fd;
+ sim_core_read_buffer (sd, scpu, read_map, fname,
+ cpu.asregs.regs[2], 1024);
+ fd = sim_io_unlink (sd, fname);
+ /* FIXME - set errno */
+ cpu.asregs.regs[2] = fd;
+ break;
+ }
case 0xffffffff: /* Linux System Call */
{
unsigned int handler = cpu.asregs.sregs[1];