1 files changed, 43 insertions, 0 deletions
diff --git a/bsps/m32c/m32cbsp/console/syscalls.S b/bsps/m32c/m32cbsp/console/syscalls.S
new file mode 100644
index 0000000000..f4cabac940
--- /dev/null
+++ b/bsps/m32c/m32cbsp/console/syscalls.S
@@ -0,0 +1,43 @@
+/*
+ *  System call support for simulator in gdb.
+ *  Adapted from newlib 1.16.0.
+ */
+
+#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
+
+#define POUND #
+#define SYSCALL(N) mov.b POUND N,0x400
+
+#define S(n) _sys_##n: .global _sys_##n | SYSCALL(SYS_##n) | rts
+
+S(write)
+S(exit)
+S(sbrk)
+
+       .global _abort
+_abort:
+        /* This is for debuggers.  The simulator stops here too. */
+        brk
+
+        /* Else, fall back on the simulator's "kill me" option.  */
+#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
+        mov.w   #42,r1
+#else
+        mov.w   #42,r0
+#endif
+
+        SYSCALL(SYS_kill)
+
+        /* Else, exit. */
+        jmp.a   __exit
+