[RFA] Add tests to callfuncs.exp for nested call dummies

[Michael Snyder <msnyder at cygnus dot com>]

Filling a hole in the testsuite coverage, this tests for
the ability to debug nested target function calls (ie, if
you're stopped in a call dummy frame and you call another
target function).

2001-11-08  Michael Snyder  <msnyder@redhat.com>

	* gdb.base/callfuncs.exp: Add tests for nested call dummies.
	Add pass/fail message for stop at breakpoint in call dummy function.

Index: callfuncs.exp
===================================================================
RCS file: /cvs/cvsfiles/devo/gdb/testsuite/gdb.base/callfuncs.exp,v
retrieving revision 1.45
diff -p -r1.45 callfuncs.exp
*** callfuncs.exp	2001/06/14 21:03:31	1.45
--- callfuncs.exp	2001/11/09 03:15:48
*************** gdb_breakpoint add
*** 319,325 ****
  
  # Call function (causing a breakpoint hit in the call dummy) and do a continue,
  # make sure we are back at main and still have the same register contents.
! gdb_test "print add(4,5)" "The program being debugged stopped while.*" ""
  gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
  if ![gdb_test "bt 2" \
  	      "#0  main.*" \
--- 319,327 ----
  
  # Call function (causing a breakpoint hit in the call dummy) and do a continue,
  # make sure we are back at main and still have the same register contents.
! gdb_test "print add(4,5)" \
! 	"The program being debugged stopped while.*" \
! 	"stop at breakpoint in call dummy function"
  gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
  if ![gdb_test "bt 2" \
  	      "#0  main.*" \
*************** if ![gdb_test "return 7" \
*** 368,371 ****
--- 370,430 ----
      }
  }
  
+ # Call function (causing a breakpoint hit in the call dummy), and
+ # call another function from the call dummy frame (thereby setting up
+ # several nested call dummy frames).  Test that backtrace and finish
+ # work when several call dummies are nested.
+ gdb_breakpoint sum10
+ gdb_breakpoint t_small_values
+ gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
+ 	"stop at nested call level 1"
+ gdb_test "backtrace" \
+ 	"\#0  add \\(a=2, b=3\\).*\#1  <function called from gdb>.*\#2  main.*" \
+ 	"backtrace at nested call level 1"
+ gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
+ 	"stop at nested call level 2"
+ gdb_test "backtrace" \
+ 	"\#0  add \\(a=4, b=5\\).*\#1  <function called from gdb>.*\#2  add \\(a=2, b=3\\).*\#3  <function called from gdb>.*\#4  main.*" \
+ 	"backtrace at nested call level 2"
+ gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
+ 	"The program being debugged stopped while.*" \
+ 	"stop at nested call level 3"
+ gdb_test "backtrace" \
+ 	"\#0  sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1  <function called from gdb>.*\#2  add \\(a=4, b=5\\).*\#3  <function called from gdb>.*\#4  add \\(a=2, b=3\\).*\#5  <function called from gdb>.*\#6  main.*" \
+ 	"backtrace at nested call level 3"
+ gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
+ 	"The program being debugged stopped while.*" \
+ 	"stop at nested call level 4"
+ gdb_test "backtrace" \
+ 	"\#0  t_small_values \\(arg1=1 '.001', arg2=3, arg3=5, arg4=7 '.a', arg5=9, arg6=11 '.013', arg7=13, arg8=15, arg9=17, arg10=19\\).*\#2  sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#3  <function called from gdb>.*\#4  add \\(a=4, b=5\\).*\#5  <function called from gdb>.*\#6  add \\(a=2, b=3\\).*\#7  <function called from gdb>.*\#8  main.*" \
+ 	"backtrace at nested call level 4"
+ gdb_test "finish" "Value returned is .* = 100" \
+ 	"Finish from nested call level 4"
+ gdb_test "backtrace" \
+ 	"\#0  sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1  <function called from gdb>.*\#2  add \\(a=4, b=5\\).*\#3  <function called from gdb>.*\#4  add \\(a=2, b=3\\).*\#5  <function called from gdb>.*\#6  main.*" \
+ 	"backtrace after finish from nested call level 4"
+ gdb_test "finish" "Value returned is .* = 110" \
+ 	"Finish from nested call level 3"
+ gdb_test "backtrace" \
+ 	"\#0  add \\(a=4, b=5\\).*\#1  <function called from gdb>.*\#2  add \\(a=2, b=3\\).*\#3  <function called from gdb>.*\#4  main.*" \
+ 	"backtrace after finish from nested call level 3"
+ gdb_test "finish" "Value returned is .* = 9" \
+ 	"Finish from nested call level 2"
+ gdb_test "backtrace" \
+ 	"\#0  add \\(a=2, b=3\\).*\#1  <function called from gdb>.*\#2  main.*" \
+ 	"backtrace after finish from nested call level 2"
+ gdb_test "finish" "Value returned is .* = 5" \
+ 	"Finish from nested call level 1"
+ gdb_test "backtrace" "\#0  main .*" \
+ 	"backtrace after finish from nested call level 1"
+ 
+ do_get_all_registers
+ set new_reg_content $all_registers_content
+ if ![string compare $old_reg_content $new_reg_content] then {
+     pass "nested call dummies preserve register contents"
+ } else {
+     fail "nested call dummies preserve register contents"
+ }
+ 
  return 0
+