Initial creation of sourceware repository

gdb/testsuite/gdb.base/watchpoint.c

@@ -1,120 +0,0 @@
-#include <stdio.h>
-#include <stdio.h>
-/*
- *	Since using watchpoints can be very slow, we have to take some pains to
- *	ensure that we don't run too long with them enabled or we run the risk
- *	of having the test timeout.  To help avoid this, we insert some marker
- *	functions in the execution stream so we can set breakpoints at known
- *	locations, without worrying about invalidating line numbers by changing
- *	this file.  We use null bodied functions are markers since gdb does
- *	not support breakpoints at labeled text points at this time.
- *
- *	One place we need is a marker for when we start executing our tests
- *	instructions rather than any process startup code, so we insert one
- *	right after entering main().  Another is right before we finish, before
- *	we start executing any process termination code.
- *
- *	Another problem we have to guard against, at least for the test
- *	suite, is that we need to ensure that the line that causes the
- *	watchpoint to be hit is still the current line when gdb notices
- *	the hit.  Depending upon the specific code generated by the compiler,
- *	the instruction after the one that triggers the hit may be part of
- *	the same line or part of the next line.  Thus we ensure that there
- *	are always some instructions to execute on the same line after the
- *	code that should trigger the hit.
- */
-
-int count = -1;
-int ival1 = -1;
-int ival2 = -1;
-int ival3 = -1;
-int ival4 = -1;
-char buf[10];
-struct foo
-{
-  int val;
-};
-struct foo struct1, struct2, *ptr1, *ptr2;
-
-int doread = 0;
-
-void marker1 ()
-{
-}
-
-void marker2 ()
-{
-}
-
-void marker4 ()
-{
-}
-
-void marker5 ()
-{
-}
-
-void
-func2 ()
-{
-}
-
-int
-func1 ()
-{
-  /* The point of this is that we will set a breakpoint at this call.
-
-     Then, if DECR_PC_AFTER_BREAK equals the size of a function call
-     instruction (true on a sun3 if this is gcc-compiled--FIXME we
-     should use asm() to make it work for any compiler, present or
-     future), then we will end up branching to the location just after
-     the breakpoint.  And we better not confuse that with hitting the
-     breakpoint.  */
-  func2 ();
-  return 73;
-}
-
-int main ()
-{
-  struct1.val = 1;
-  struct2.val = 2;
-  ptr1 = &struct1;
-  ptr2 = &struct2;
-  marker1 ();
-  func1 ();
-  for (count = 0; count < 4; count++) {
-    ival1 = count;
-    ival3 = count; ival4 = count;
-  }
-  ival1 = count; /* Outside loop */
-  ival2 = count;
-  ival3 = count; ival4 = count;
-  marker2 ();
-  if (doread)
-    read (0, &buf[0], 5);
-  marker4 ();
-
-  /* We have a watchpoint on ptr1->val.  It should be triggered if
-     ptr1's value changes.  */
-  ptr1 = ptr2;
-
-  /* This should not trigger the watchpoint.  If it does, then we
-     used the wrong value chain to re-insert the watchpoints or we
-     are not evaluating the watchpoint expression correctly.  */
-  struct1.val = 5;
-  marker5 ();
-  if (doread)
-    read (0, &buf[0], 5);
-  marker4 ();
-
-  /* We have a watchpoint on ptr1->val.  It should be triggered if
-     ptr1's value changes.  */
-  ptr1 = ptr2;
-
-  /* This should not trigger the watchpoint.  If it does, then we
-     used the wrong value chain to re-insert the watchpoints or we
-     are not evaluating the watchpoint expression correctly.  */
-  struct1.val = 5;
-  marker5 ();
-  return 0;
-}