binutils-gdb/gdb/testsuite/gdb.cp/method.exp

# Copyright 1998-2022 Free Software Foundation, Inc.

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# tests for misc. C++ method stuff
# Written by Satish Pai <pai@apollo.hp.com> 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.)

#
# test running programs
#

if { [skip_cplus_tests] } { return }

standard_testfile .cc

if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
    return -1
}

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

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

gdb_test_multiple "print this" "print this in A::bar" {
    -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)"
    }
}

# 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

gdb_test_multiple "ptype A" "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\}\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\\) volatile;\r\n\[ \]*int qux\\(int, float\\) const volatile;\r\n\}\r\n$gdb_prompt $" {
	pass "ptype A"
    }
}

gdb_test_multiple "cont" "finish program" {
    -re "Continuing.\r\n$inferior_exited_re normally.*$gdb_prompt $" {
	pass "finish program"
    }
    -re "Continuing.* EXIT code 0.*$inferior_exited_re normally.*$gdb_prompt $" {
	pass "finish program (exit wrapper)" 
    }
}