method.exp

gdb-6.8 Linux下的调试程序 最新版本

# Copyright 1998, 1999, 2001, 2002, 2003, 2004, 2007, 2008
# Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# tests for misc. C++ method stuff
# Written by Satish Pai <[e-mail]> 1997-07-08

# This file is part of the gdb testsuite

# This tests:
# 0. method arguments are correct
# 1. access to class data members inside method scopes
# 2. correct param types for methods in ptype.
# 3. const and volatile methods

# (#0 and #1 above relate to an HP specific problem -- GDB must correctly
# integrate FPARAM symbols in HP debug info into the local var list
# for the function or method's block.)

if $tracelevel then {
        strace $tracelevel
        }

#
# test running programs
#
set prms_id 0
set bug_id 0

if { [skip_cplus_tests] } { continue }

set testfile "method"
set srcfile ${testfile}.cc
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
     untested method.exp
     return -1
}

if [get_compiler_info $binfile "c++"] {
  return -1
}

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


#
# set it up at a breakpoint so we can play with the variable values
#
if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

gdb_test "break A::foo" \
  "Breakpoint \[0-9\]* at $hex.*file .*method.cc, line 38\\."

gdb_test "continue" \
  "Continuing\\.\r\n\r\nBreakpoint \[0-9\]*, A::foo(\\(int\\)|) \\(this=$hex, arg=13\\) at .*method\\.cc:38\r\n38\[\t \]*x \\+= arg;" \
  "continue to A::foo"

# Check ability to access this-relative stuff.

gdb_test "print x" \
   "\\$\[0-9\]* = 20" \
   "print x in A::foo"

# Check access to this pointer       

gdb_test "print this" \
   "\\$\[0-9\]* = \\((class |)A *\\* *(const|)\\) $hex" \
   "print this in A::foo"

# Now do everything over again for A::bar, because sometimes processing one method
# (the first one) is fine, but the second one's debug info gets munged beyond recognition.

gdb_test "break A::bar" \
  "Breakpoint \[0-9\]* at $hex.*file .*method.cc, line 44\\."

gdb_test "continue" \
  "Continuing\\.\r\n\r\nBreakpoint \[0-9\]*, A::bar(|\\(int\\) const| const) \\(this=$hex, arg=15\\) at .*method\\.cc:44\r\n44\[\t \]*return arg \\+ 2 \\* x;" \
  "continue to A::bar"

# Check ability to access this-relative stuff.

gdb_test "print x" \
  "\\$\[0-9\]* = 33" \
  "print x in A::bar"

# Check access to this pointer       

get_debug_format

send_gdb "print this\n"
gdb_expect {
  -re "\\$\[0-9\]* = \\(const (class |)A *\\* *(const|)\\) $hex\r\n$gdb_prompt $" {
    pass "print this in A::bar"
  }
  -re "\\$\[0-9\]* = \\((class |)A *\\* *(const|)\\) $hex\r\n$gdb_prompt $" {
    # gcc versions up to 3.0.4 with -gstabs+ do not emit "const" indicators,
    # so the output is "A *".  It should be "const A *" or "const A * const".
    setup_xfail_format "stabs"
    fail "print this in A::bar (missing const)"
  }
  -re "\\$\[0-9\]* = \\(const (class |)\{\\.\\.\\.\} *\\* *(const|)\\) $hex\r\n$gdb_prompt $" {
    # gcc versions gcc-3_1-branch%20020404 and HEAD%20020404 with -gstabs+
    # produce good stabs, but gdb prints "const class {...} *" const.
    # This is PR gdb/277.
    # setup_kfail "gdb/277"
    fail "print this in A::bar (gdb/277)"
  }
  -re ".*$gdb_prompt $" { fail "print this in A::bar" }
  timeout { fail "(timeout) print this in A::bar" }
}

# Check again with funk::getFunky (this is the original test case
# for CHFts23426); sometimes having a constructor with no arguments
# will nuke the debug info read in for other methods in the class.

gdb_test "break 21" \
  "Breakpoint \[0-9\]* at $hex.*file .*method.cc, line 21\\."

gdb_test "continue" \
  "Continuing\\.\r\n\r\nBreakpoint \[0-9\]*, funk::getFunky(\\(int, int\\)|) \\(this=$hex, a=1, b=2\\) at .*method\\.cc:21\r\n21\[\t \]*data_ = res;" \
  "continue to 21"

# Check ability to access this-relative stuff.

gdb_test "print data_" \
  "\\$\[0-9\]* = 33" \
  "print data_ in funk::getFunky"

# Check access to this pointer       

gdb_test "print this" \
  "\\$\[0-9\]* = \\((class |)funk *\\* *(const|)\\) $hex" \
  "print this in funk::getFunky"

# Check access to local variable

gdb_test "print res" \
  "\\$\[0-9\]* = -30" \
   "print res in funk::getFunky"

# Check ptype of class -- should show const/volatile methods

send_gdb "ptype A\n"
gdb_expect {
   -re "type = class A \{\r\n\[ \]*public:\r\n\[ \]*int x;\r\n\[ \]*int y;\r\n\r\n\[ \]*int foo\\(int\\);\r\n\[ \]*int bar\\(int\\) const;\r\n\[ \]*int baz\\(int, char\\) volatile;\r\n\[ \]*int qux\\(int, float\\) (const volatile|volatile const);\r\n\}\r\n$gdb_prompt $" {
      pass "ptype A"
   }
   -re "type = class A \{\r\n\[ \]*public:\r\n\[ \]*int x;\r\n\[ \]*int y;\r\n\r\n\[ \]*A & operator=\\(A const ?&\\);\r\n\[ \]*A\\(A const ?&\\);\r\n\[ \]*A\\((void|)\\);\r\n\[ \]*int foo\\(int\\);\r\n\[ \]*int bar\\(int\\) const;\r\n\[ \]*int baz\\(int, char\\) volatile;\r\n\[ \]*int qux\\(int, float\\) (const volatile|volatile const);\r\n\}\r\n$gdb_prompt $" {
      pass "ptype A"
   }
   -re "type = class A \{\r\n\[ \]*public:\r\n\[ \]*int x;\r\n\[ \]*int y;\r\n\r\n\[ \]*int foo\\(int\\);\r\n\[ \]*int bar\\(int\\) const;\r\n\[ \]*int baz\\(int, char\\) volatile;\r\n\[ \]*int qux\\(int, float\\) (const volatile|volatile const);\r\n\[ \]*A & operator=\\(A const ?&\\);\r\n\[ \]*A\\(A const ?&\\);\r\n\[ \]*A\\((void|)\\);\r\n\}\r\n$gdb_prompt $" {
      pass "ptype A"
   }
   -re "type = class A \{\r\n\[ \]*public:\r\n\[ \]*int x;\r\n\[ \]*int y;\r\n\r\n\[ \]*int foo\\(int\\);\r\n\[ \]*int bar\\(int\\) const;\r\n\[ \]*int baz\\(int, char\\);\r\n\[ \]*int qux\\(int, float\\) const;\r\n\}\r\n$gdb_prompt $" {
      pass "ptype A (HP aCC bug -- volatile not indicated)"
   }
   -re "type = class A \{\r\n\[ \]*public:\r\n\[ \]*int x;\r\n\[ \]*int y;\r\n\r\n\[ \]*int foo\\(int\\);\r\n\[ \]*int bar\\(int\\) const;\r\n\[ \]*int baz\\(int, char\\) volatile;\r\n\[ \]*int qux\\(int, float\\) const volatile;\r\n\}\r\n$gdb_prompt $" {
      pass "ptype A"
   }
   -re ".*$gdb_prompt $" { fail "ptype A" }
   timeout { fail "(timeout) ptype A" }
}

send_gdb "cont\n"
gdb_expect {
    -re "Continuing.\r\n\r\nProgram exited normally.*$gdb_prompt $" {
	pass "finish program"
    }
    -re "Continuing.* EXIT code 0.*Program exited normally.*$gdb_prompt $" {
	pass "finish program (exit wrapper)" 
    }
    -re ".*$gdb_prompt $" { fail "finish program" }
    default:{               fail "finish program (timeout)" }
}