Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / x86_64 / include / gdbmach.h

diff --git a/qemu/roms/ipxe/src/arch/x86_64/include/gdbmach.h b/qemu/roms/ipxe/src/arch/x86_64/include/gdbmach.h
new file mode 100644 (file)
index 0000000..6dadbbd
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/x86_64/include/gdbmach.h
@@ -0,0 +1,53 @@
+#ifndef GDBMACH_H
+#define GDBMACH_H
+
+/** @file
+ *
+ * GDB architecture specifics
+ *
+ * This file declares functions for manipulating the machine state and
+ * debugging context.
+ *
+ */
+
+#include <stdint.h>
+
+typedef unsigned long gdbreg_t;
+
+/* The register snapshot, this must be in sync with interrupt handler and the
+ * GDB protocol. */
+enum {
+       // STUB: don't expect this to work!
+       GDBMACH_EIP,
+       GDBMACH_EFLAGS,
+       GDBMACH_NREGS,
+       GDBMACH_SIZEOF_REGS = GDBMACH_NREGS * sizeof ( gdbreg_t )
+};
+
+/* Breakpoint types */
+enum {
+       GDBMACH_BPMEM,
+       GDBMACH_BPHW,
+       GDBMACH_WATCH,
+       GDBMACH_RWATCH,
+       GDBMACH_AWATCH,
+};
+
+static inline void gdbmach_set_pc ( gdbreg_t *regs, gdbreg_t pc ) {
+       regs [ GDBMACH_EIP ] = pc;
+}
+
+static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
+       regs [ GDBMACH_EFLAGS ] &= ~( 1 << 8 ); /* Trace Flag (TF) */
+       regs [ GDBMACH_EFLAGS ] |= ( step << 8 );
+}
+
+static inline void gdbmach_breakpoint ( void ) {
+       __asm__ __volatile__ ( "int $3\n" );
+}
+
+extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len, int enable );
+
+extern void gdbmach_init ( void );
+
+#endif /* GDBMACH_H */