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Diffstat (limited to 'c/src/lib/libbsp/arm/armulator/startup/libcfunc.c')
-rw-r--r--c/src/lib/libbsp/arm/armulator/startup/libcfunc.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/armulator/startup/libcfunc.c b/c/src/lib/libbsp/arm/armulator/startup/libcfunc.c
new file mode 100644
index 0000000000..aec84d0f4c
--- /dev/null
+++ b/c/src/lib/libbsp/arm/armulator/startup/libcfunc.c
@@ -0,0 +1,40 @@
+/* Support files for GNU libc. Files in the C namespace go here.
+ Files in the system namespace (ie those that start with an underscore)
+ go in syscalls.c.
+
+ Note: These functions are in a seperate file so that OS providers can
+ overrride the system call stubs (defined in syscalls.c) without having
+ to provide libc funcitons as well. */
+#include "swi.h"
+
+#ifdef ARM_RDI_MONITOR
+
+static inline int
+do_AngelSWI (int reason, void * arg)
+{
+ int value;
+ asm volatile ("mov r0, %1; mov r1, %2; swi %a3; mov %0, r0"
+ : "=r" (value) /* Outputs */
+ : "r" (reason), "r" (arg), "i" (AngelSWI) /* Inputs */
+ : "r0", "r1", "lr"
+ /* Clobbers r0 and r1, and lr if in supervisor mode */);
+ return value;
+}
+#endif /* ARM_RDI_MONITOR */
+
+
+void
+abort_program (void)
+{
+#ifdef ARM_RDI_MONITOR
+ do_AngelSWI (AngelSWI_Reason_ReportException,
+ (void *) ADP_Stopped_RunTimeError);
+#else
+ asm ("mov r0,#17\nswi %a0" :: "i" (SWI_Exit));
+#endif
+}
+
+void
+alarm (void)
+{
+}