callfuncs.exp

这个是LINUX下的GDB调度工具的源码

    gdb_test "p sum_args(4,{2,3,4,5})" " = 14"

    gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"

    gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"

    gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
	"call inferior func with struct - returns char"
    gdb_test "p t_structs_s(struct_val1)" "= 87" \
	"call inferior func with struct - returns short"
    gdb_test "p t_structs_i(struct_val1)" "= 76" \
	"call inferior func with struct - returns int"
    gdb_test "p t_structs_l(struct_val1)" "= 51" \
	"call inferior func with struct - returns long"
    gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
       	"call inferior func with struct - returns float"
    gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
    	"call inferior func with struct - returns double"
    gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
    	"call inferior func with struct - returns char *"
}

# Procedure to get current content of all registers.
global all_registers_content
set all_registers_content ""
proc do_get_all_registers { } {
    global gdb_prompt
    global expect_out
    global all_registers_content

    set all_registers_content ""
    send_gdb "info all-registers\n"
    gdb_expect {
	-re "info all-registers\r\n(.*)$gdb_prompt $" {
	    set all_registers_content $expect_out(1,string)
	}
	default {}
    }
}

# Start with a fresh gdb.

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

gdb_test "set print sevenbit-strings" ""
gdb_test "set print address off" ""
gdb_test "set width 0" ""

if { $hp_aCC_compiler } {
    # Do not set language explicitly to 'C'.  This will cause aCC
    # tests to fail because promotion rules are different.  Just let
    # the language be set to the default.

    if { ![runto_main] } {
	gdb_suppress_tests;
    }

    # However, turn off overload-resolution for aCC.  Having it on causes
    # a lot of failures.

    gdb_test "set overload-resolution 0" ".*"
} else {
    if { ![set_lang_c] } {
	gdb_suppress_tests;
    } else {
	if { ![runto_main] } {
	    gdb_suppress_tests;
	}
    }
}

get_debug_format

# Make sure that malloc gets called and that the floating point unit
# is initialized via a call to t_double_values.
gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
  "next to t_double_values"
gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
  "next to t_structs_c"

# Save all register contents.
do_get_all_registers
set old_reg_content $all_registers_content

# Perform function calls.
do_function_calls

# Check if all registers still have the same value.
do_get_all_registers
set new_reg_content $all_registers_content
if ![string compare $old_reg_content $new_reg_content] then {
    pass "gdb function calls preserve register contents"
} else {
    set old_reg_content $all_registers_content
    fail "gdb function calls preserve register contents"
}

# Set breakpoint at a function we will call from gdb.
gdb_breakpoint add

# 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.*" \
	      "bt after continuing from call dummy breakpoint"] then {
    do_get_all_registers
    set new_reg_content $all_registers_content
    if ![string compare $old_reg_content $new_reg_content] then {
	pass "continue after stop in call dummy preserves register contents"
    } else {
	fail "continue after stop in call dummy preserves register contents"
    }
}

# Call function (causing a breakpoint hit in the call dummy) and do a finish,
# 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.*" \
	"call function causing a breakpoint then do a finish"
gdb_test "finish" \
	 "Value returned is .* = 9" \
	 "finish from call dummy breakpoint returns correct value"
if ![gdb_test "bt 2" \
	      "#0  main.*" \
	      "bt after finishing from call dummy breakpoint"] then {
    do_get_all_registers
    set new_reg_content $all_registers_content
    if ![string compare $old_reg_content $new_reg_content] then {
	pass "finish after stop in call dummy preserves register contents"
    } else {
	fail "finish after stop in call dummy preserves register contents"
    }
}

# Call function (causing a breakpoint hit in the call dummy) and do a return
# with a value, make sure we are back at main with the same register contents.
gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
	"call function causing a breakpoint and then do a return"
if ![gdb_test "return 7" \
	      "#0  main.*" \
	      "back at main after return from call dummy breakpoint" \
	      "Make add return now. .y or n.*" \
	      "y"] then {
    do_get_all_registers
    set new_reg_content $all_registers_content
    if ![string compare $old_reg_content $new_reg_content] then {
	pass "return after stop in call dummy preserves register contents"
    } else {
	fail "return after stop in call dummy preserves register contents"
    }
}

# 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 '.v', 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