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authorMike Frysinger <vapier@gentoo.org>2021-04-18 22:31:19 -0400
committerMike Frysinger <vapier@gentoo.org>2021-04-18 23:01:08 -0400
commitf956ecde56495cbcd5f8a3b440220090ee39ff56 (patch)
treeae897b81fbdce2334a3ee8109a171ce9c6fa048d /sim/m32c
parent2390d779430a64350be827929a0ebf73155f4fd7 (diff)
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sim: m32c: switch syscalls to common nltvals
Rather than hand duplicate the syscall table, switch to the common nltvals framework. We have to tweak the constant names, but we get everything else for free. I made sure the constants have the same values before & after too :).
Diffstat (limited to 'sim/m32c')
-rw-r--r--sim/m32c/ChangeLog7
-rw-r--r--sim/m32c/Makefile.in3
-rw-r--r--sim/m32c/syscall.h50
-rw-r--r--sim/m32c/syscalls.c19
4 files changed, 19 insertions, 60 deletions
diff --git a/sim/m32c/ChangeLog b/sim/m32c/ChangeLog
index 8d91232..26c7c98 100644
--- a/sim/m32c/ChangeLog
+++ b/sim/m32c/ChangeLog
@@ -1,5 +1,12 @@
2021-04-18 Mike Frysinger <vapier@gentoo.org>
+ * Makefile.in (NL_TARGET): Define.
+ * syscalls.c: Change syscall.h include to targ-vals.h.
+ (m32c_syscall): Add TARGET_ prefix to all SYS_ constants.
+ * syscall.h: Removed.
+
+2021-04-18 Mike Frysinger <vapier@gentoo.org>
+
* configure: Regenerate.
2021-04-08 Simon Marchi <simon.marchi@polymtl.ca>
diff --git a/sim/m32c/Makefile.in b/sim/m32c/Makefile.in
index 186c9c0..15ade0b 100644
--- a/sim/m32c/Makefile.in
+++ b/sim/m32c/Makefile.in
@@ -18,6 +18,9 @@
### You should have received a copy of the GNU General Public License
### along with this program. If not, see <http://www.gnu.org/licenses/>.
+# This selects the newlib/libgloss syscall definitions.
+NL_TARGET = -DNL_TARGET_m32c
+
## COMMON_PRE_CONFIG_FRAG
SIM_EXTRA_CFLAGS = -Wall -DTIMER_A
diff --git a/sim/m32c/syscall.h b/sim/m32c/syscall.h
deleted file mode 100644
index 0194e03..0000000
--- a/sim/m32c/syscall.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Copied from libgloss */
-/* General use syscall.h file.
- The more ports that use this file, the simpler sim/common/nltvals.def
- remains. */
-
-#ifndef LIBGLOSS_SYSCALL_H
-#define LIBGLOSS_SYSCALL_H
-
-/* Note: This file may be included by assembler source. */
-
-/* These should be as small as possible to allow a port to use a trap type
- instruction, which the system call # as the trap (the d10v for instance
- supports traps 0..31). An alternative would be to define one trap for doing
- system calls, and put the system call number in a register that is not used
- for the normal calling sequence (so that you don't have to shift down the
- arguments to add the system call number). Obviously, if these system call
- numbers are ever changed, all of the simulators and potentially user code
- will need to be updated. */
-
-/* There is no current need for the following: SYS_execv, SYS_creat, SYS_wait,
- etc. etc. Don't add them. */
-
-/* These are required by the ANSI C part of newlib (excluding system() of
- course). */
-#define SYS_exit 1
-#define SYS_open 2
-#define SYS_close 3
-#define SYS_read 4
-#define SYS_write 5
-#define SYS_lseek 6
-#define SYS_unlink 7
-#define SYS_getpid 8
-#define SYS_kill 9
-#define SYS_fstat 10
-/*#define SYS_sbrk 11 - not currently a system call, but reserved. */
-
-/* ARGV support. */
-#define SYS_argvlen 12
-#define SYS_argv 13
-
-/* These are extras added for one reason or another. */
-#define SYS_chdir 14
-#define SYS_stat 15
-#define SYS_chmod 16
-#define SYS_utime 17
-#define SYS_time 18
-#define SYS_gettimeofday 19
-#define SYS_times 20
-#define SYS_link 21
-#endif
diff --git a/sim/m32c/syscalls.c b/sim/m32c/syscalls.c
index a033dba..86695cb 100644
--- a/sim/m32c/syscalls.c
+++ b/sim/m32c/syscalls.c
@@ -30,8 +30,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "cpu.h"
#include "mem.h"
#include "syscalls.h"
-
-#include "syscall.h"
+#include "targ-vals.h"
/* The current syscall callbacks we're using. */
static struct host_callback_struct *callbacks;
@@ -184,7 +183,7 @@ m32c_syscall (int id)
printf ("\033[31m/* SYSCALL(%d) = %s */\033[0m\n", id, callnames[id]);
switch (id)
{
- case SYS_exit:
+ case TARGET_SYS_exit:
{
int ec = arg (2);
if (verbose)
@@ -193,7 +192,7 @@ m32c_syscall (int id)
}
break;
- case SYS_open:
+ case TARGET_SYS_open:
{
int path = arg (PTRSZ);
int oflags = arg (2);
@@ -228,7 +227,7 @@ m32c_syscall (int id)
}
break;
- case SYS_close:
+ case TARGET_SYS_close:
{
int fd = arg (2);
@@ -244,7 +243,7 @@ m32c_syscall (int id)
}
break;
- case SYS_read:
+ case TARGET_SYS_read:
{
int fd = arg (2);
int addr = arg (PTRSZ);
@@ -264,7 +263,7 @@ m32c_syscall (int id)
}
break;
- case SYS_write:
+ case TARGET_SYS_write:
{
int fd = arg (2);
int addr = arg (PTRSZ);
@@ -287,11 +286,11 @@ m32c_syscall (int id)
}
break;
- case SYS_getpid:
+ case TARGET_SYS_getpid:
put_reg (r0, 42);
break;
- case SYS_gettimeofday:
+ case TARGET_SYS_gettimeofday:
{
int tvaddr = arg (PTRSZ);
struct timeval tv;
@@ -306,7 +305,7 @@ m32c_syscall (int id)
}
break;
- case SYS_kill:
+ case TARGET_SYS_kill:
{
int pid = arg (2);
int sig = arg (2);