Reviewed and approved by Jim Blandy

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / sizeof.exp

diff --git a/gdb/testsuite/gdb.base/sizeof.exp b/gdb/testsuite/gdb.base/sizeof.exp
index b9642feb90efe57ee12dffb751ddfd1a13e31c7d..93291342413dea5f7749a714608a575f8ca99c73 100644 (file)
--- a/gdb/testsuite/gdb.base/sizeof.exp
+++ b/gdb/testsuite/gdb.base/sizeof.exp
@@ -1,4 +1,6 @@
-# Copyright (C) 2000 Free Software Foundation, Inc.
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2000, 2002, 2003, 2004, 2005 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
@@ -14,8 +16,10 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
 
-# Please email any bugs, comments, and/or additions to this file to:
-# bug-gdb@prep.ai.mit.edu
+if [target_info exists gdb,noinferiorio] {
+    verbose "Skipping fileio.exp because of no fileio capabilities."
+    continue
+}
 
 if $tracelevel {
     strace $tracelevel
@@ -56,22 +60,26 @@ if ![runto_main] then {
 # Query GDB for the size of various types
 #
 
-proc get_sizeof { type default } {
+proc get_valueof { fmt exp default } {
     global gdb_prompt
-    send_gdb "print/d sizeof (${type})\n"
-    gdb_expect {
-       -re "\\$\[0-9\]* = (\[0-9\]*).*$gdb_prompt $" {
-           set size $expect_out(1,string)
-           pass "get sizeof ${type} ($size)"
-       }
-       timeout {
-           set size ${default}
-           fail "get sizeof ${type} (timeout)"
+
+    set test "get valueof \"${exp}\""
+    set val ${default}
+    gdb_test_multiple "print${fmt} ${exp}" "$test" {
+       -re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
+           set val $expect_out(1,string)
+           pass "$test ($val)"
        }
     }
-    return ${size}
+    return ${val}
 }
 
+proc get_sizeof { type default } {
+    return [get_valueof "/d" "sizeof (${type})" $default]
+}
+
+gdb_test "next"
+
 set sizeof_char [get_sizeof "char" 1]
 set sizeof_short [get_sizeof "short" 2]
 set sizeof_int [get_sizeof "int" 4]
@@ -85,7 +93,6 @@ set sizeof_float [get_sizeof "float" 4]
 set sizeof_double [get_sizeof "double" 8]
 set sizeof_long_double [get_sizeof "long double" 8]
 
-
 #
 # Compare GDB's idea of types with the running program
 #
@@ -93,23 +100,8 @@ set sizeof_long_double [get_sizeof "long double" 8]
 proc check_sizeof { type size } {
     global gdb_prompt
 
-    if [gdb_skip_stdio_test "check sizeof $type == $size"] {
-       return;
-    }
-
-    set pat [string_to_regexp ${type}]
-    send_gdb "next\n"
-    gdb_expect {
-       -re "sizeof \\(${pat}\\) == ${size}\[\r\n\].*$gdb_prompt $" {
-           pass "check sizeof ${type} == ${size}"
-       }
-       -re ".*$gdb_prompt $" {
-           fail "check sizeof ${type} == ${size}"
-       }
-       timeout {
-           fail "check sizeof ${type} == ${size} (timeout)"
-       }
-    }
+    set pat [string_to_regexp "sizeof (${type}) == ${size}"]
+    gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*"  "check sizeof \"$type\""
 }
 
 check_sizeof "char" ${sizeof_char}
@@ -125,6 +117,46 @@ check_sizeof "float" ${sizeof_float}
 check_sizeof "double" ${sizeof_double}
 check_sizeof "long double" ${sizeof_long_double}
 
+proc check_valueof { exp val } {
+    global gdb_prompt
+
+    set pat [string_to_regexp "valueof (${exp}) == ${val}"]
+    gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*" "check valueof \"$exp\""
+}
+
+# Check that GDB and the target agree over the sign of a character.
+
+set signof_byte [get_valueof "/d" "'\\377'" -1]
+set signof_char [get_valueof "/d" "(int) (char) -1" -1]
+set signof_signed_char [get_valueof "/d" "(int) (signed char) -1" -1]
+set signof_unsigned_char [get_valueof "/d" "(int) (unsigned char) -1" -1]
+
+check_valueof "'\\377'" ${signof_byte}
+check_valueof "(int) (char) -1" ${signof_char}
+check_valueof "(int) (signed char) -1" ${signof_signed_char}
+check_valueof "(int) (unsigned char) -1" ${signof_unsigned_char}
+
+proc check_padding { fmt type val } {
+    global gdb_prompt
+    gdb_test "set padding_${type}.v = ${val}"
+    gdb_test "print padding_${type}.p1" "= \"The quick brown \""
+    gdb_test "print${fmt} padding_${type}.v" "= ${val}"
+    gdb_test "print padding_${type}.p2" "\"The quick brown \".*"
+}
+
+# Check that GDB is managing to store a value in a struct field
+# without corrupting the fields immediately adjacent to it.
+
+check_padding "/d" "char" 1
+check_padding "/d" "short" 2
+check_padding "/d" "int" 4
+check_padding "/d" "long" 4
+check_padding "/d" "long_long" 8
+
+# use multiples of two which can be represented exactly
+check_padding "/f" "float" 1
+check_padding "/f" "double" 2
+check_padding "/f" "long_double" 4
 
 #
 # For reference, dump out the entire architecture