Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 108 insertions, 0 deletions

diff --git a/gdb/nlm/i386.c b/gdb/nlm/i386.c
new file mode 100644
index 0000000..560198e
--- /dev/null
+++ b/gdb/nlm/i386.c
@@ -0,0 +1,108 @@
+#include <dfs.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <time.h>
+#include <conio.h>
+#include <advanced.h>
+#include <debugapi.h>
+#include <process.h>
+#include <errno.h>
+#include "i386.h"
+
+extern char *mem2hex (void *mem, char *buf, int count, int may_fault);
+extern char *hex2mem (char *buf, void *mem, int count, int may_fault);
+extern int computeSignal (int exceptionVector);
+
+void
+flush_i_cache()
+{
+}
+
+/* Get the registers out of the frame information.  */
+
+void
+frame_to_registers (frame, regs)
+     struct StackFrame *frame;
+     char *regs;
+{
+  /* Copy EAX -> EDI */
+  mem2hex (&frame->ExceptionEAX, &regs[0 * 4 * 2], 4 * 8, 0);
+
+  /* Copy EIP & PS */
+  mem2hex (&frame->ExceptionPC, &regs[8 * 4 * 2], 4 * 2, 0);
+
+  /* Copy CS, SS, DS */
+  mem2hex (&frame->ExceptionCS, &regs[10 * 4 * 2], 4 * 3, 0);
+
+  /* Copy ES */
+  mem2hex (&frame->ExceptionES, &regs[13 * 4 * 2], 4 * 1, 0);
+
+  /* Copy FS & GS */
+  mem2hex (&frame->ExceptionFS, &regs[14 * 4 * 2], 4 * 2, 0);
+}
+
+/* Put the registers back into the frame information.  */
+
+void
+registers_to_frame (regs, frame)
+     char *regs;
+     struct StackFrame *frame;
+{
+  /* Copy EAX -> EDI */
+  hex2mem (&regs[0 * 4 * 2], &frame->ExceptionEAX, 4 * 8, 0);
+
+  /* Copy EIP & PS */
+  hex2mem (&regs[8 * 4 * 2], &frame->ExceptionPC, 4 * 2, 0);
+
+  /* Copy CS, SS, DS */
+  hex2mem (&regs[10 * 4 * 2], &frame->ExceptionCS, 4 * 3, 0);
+
+  /* Copy ES */
+  hex2mem (&regs[13 * 4 * 2], &frame->ExceptionES, 4 * 1, 0);
+
+  /* Copy FS & GS */
+  hex2mem (&regs[14 * 4 * 2], &frame->ExceptionFS, 4 * 2, 0);
+}
+
+void
+set_step_traps (frame)
+     struct StackFrame *frame;
+{
+  frame->ExceptionSystemFlags |= 0x100;
+}
+
+void
+clear_step_traps (frame)
+     struct StackFrame *frame;
+{
+  frame->ExceptionSystemFlags &= ~0x100;
+}
+
+void
+do_status (ptr, frame)
+     char *ptr;
+     struct StackFrame *frame;
+{
+  int sigval;
+
+  sigval = computeSignal (frame->ExceptionNumber);
+
+  sprintf (ptr, "T%02x", sigval);
+  ptr += 3;
+
+  sprintf (ptr, "%02x:", PC_REGNUM);
+  ptr = mem2hex (&frame->ExceptionPC, ptr + 3, 4, 0);
+  *ptr++ = ';';
+
+  sprintf (ptr, "%02x:", SP_REGNUM);
+  ptr = mem2hex (&frame->ExceptionESP, ptr + 3, 4, 0);
+  *ptr++ = ';';
+
+  sprintf (ptr, "%02x:", FP_REGNUM);
+  ptr = mem2hex (&frame->ExceptionEBP, ptr + 3, 4, 0);
+  *ptr++ = ';';
+
+  *ptr = '\000';
+}