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jeremybenn |
# Test macro scoping.
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# Copyright 2002, 2007, 2008 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see .
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set testfile "macscp"
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set binfile ${objdir}/${subdir}/${testfile}
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if {[gdb_compile "${srcdir}/${subdir}/macscp1.c" "${binfile}" executable {debug}] != "" } {
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untested macscp.exp
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return -1
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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# Ask GDB to show the current definition of MACRO, and return a list
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# describing the result.
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#
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# The return value has the form {FILE1 FILE2 ... DEF}, which means
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# that MACRO has the definition `DEF', and was defined in `FILE1',
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# which was included from `FILE2', included from ... .
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#
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# If GDB says that MACRO has no definition, return the string `undefined'.
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#
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# If GDB complains that it doesn't have any information about
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# preprocessor macro definitions, return the string `no-macro-info'.
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#
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# If expect times out waiting for GDB, we return the string `timeout'.
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#
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# If GDB's output doesn't otherwise match what we're expecting, we
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# return the empty string.
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proc info_macro {macro} {
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global gdb_prompt
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global decimal
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set filepat {macscp[0-9]+\.[ch]}
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set definition {}
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set location {}
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send_gdb "info macro ${macro}\n"
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set debug_me 0
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if {$debug_me} {exp_internal 1}
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gdb_expect {
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-re "Defined at \[^\r\n\]*(${filepat}):${decimal}\[\r\n\]" {
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# `location' and `definition' should be empty when we see
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# this message.
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if {[llength $location] == 0 && [llength $definition] == 0} {
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set location $expect_out(1,string)
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exp_continue
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} else {
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# Exit this expect loop, with a result indicating failure.
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set definition {}
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}
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}
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-re "The symbol `${macro}' has no definition as a C/C\\+\\+ preprocessor macro\[^\r\n\]*\[\r\n\]" {
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# `location' and `definition' should be empty when we see
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# this message.
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if {[llength $location] == 0 && [llength $definition] == 0} {
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set definition undefined
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exp_continue
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} else {
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# Exit this expect loop, with a result indicating failure.
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set definition {}
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}
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}
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-re "^\[\r\n\]* included at \[^\r\n\]*(${filepat}):${decimal}\[\r\n\]" {
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# `location' should *not* be empty when we see this
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# message. It should have recorded at least the initial
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# `Defined at ' message (for definitions) or ` at' message
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# (for undefined symbols).
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if {[llength $location] != 0} {
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lappend location $expect_out(1,string)
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exp_continue
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} else {
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# Exit this expect loop, with a result indicating failure.
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set definition {}
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}
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}
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-re "^\[\r\n\]*at \[^\r\n\]*(${filepat}):${decimal}\[\r\n\]" {
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# This appears after a `has no definition' message.
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# `location' should be empty when we see it.
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if {[string compare $definition undefined] == 0 \
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&& [llength $location] == 0} {
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set location $expect_out(1,string)
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exp_continue
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} else {
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# Exit this expect loop, with a result indicating failure.
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set definition {}
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}
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}
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-re "#define ${macro} (\[^\r\n\]*)\[\r\n\]" {
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# `definition' should be empty when we see this message.
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if {[string compare $definition ""] == 0} {
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set definition $expect_out(1,string)
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exp_continue
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} else {
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# Exit this expect loop, with a result indicating failure.
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set definition {}
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}
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}
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-re "has no preprocessor macro information.*$gdb_prompt $" {
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set definition no-macro-info
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}
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-re "$gdb_prompt $" {
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# Exit the expect loop; let the existing value of `definition'
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# indicate failure or success.
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}
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timeout {
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set definition timeout
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}
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}
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if {$debug_me} {exp_internal 0}
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switch -exact -- $definition {
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no-macro-info { return no-macro-info }
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timeout { return timeout }
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undefined -
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default {
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if {[llength $location] >= 1} {
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return [concat $location [list $definition]]
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} else {
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return {}
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}
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}
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}
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}
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# Call info_macro to show the definition of MACRO. Expect a result of
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# EXPECTED. Use WHERE in pass/fail messages to identify the context.
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# Return non-zero if we should abort the entire test file, or zero if
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# we can continue.
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proc check_macro {macro expected where} {
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set func_def [info_macro $macro]
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if {[string compare $func_def $expected] == 0} {
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pass "info macro $macro $where"
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} else {
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switch -exact -- $func_def {
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no-macro-info {
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xfail "executable includes no macro debugging information"
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return 1
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}
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timeout {
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fail "info macro $macro $where (timeout)"
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}
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default {
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fail "info macro $macro $where"
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}
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}
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}
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return 0
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}
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# List the function FUNC, and then show the definition of MACRO,
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# expecting the result EXPECTED.
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proc list_and_check_macro {func macro expected} {
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gdb_test "list $func" ".*${func}.*"
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return [check_macro $macro $expected "after `list $func'"]
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}
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if {[list_and_check_macro main WHERE {macscp1.c {before macscp1_3}}]} {
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return 0
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}
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list_and_check_macro macscp2_2 WHERE {macscp2.h macscp1.c {before macscp2_2}}
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list_and_check_macro macscp3_2 WHERE {macscp3.h macscp1.c {before macscp3_2}}
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# Although GDB's macro table structures distinguish between multiple
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# #inclusions of the same file, GDB's other structures don't. So the
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# `list' command here doesn't reliably select one #inclusion or the
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# other, even though it could. It would be nice to eventually change
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# GDB's structures to handle this correctly.
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gdb_test "list macscp4_2_from_macscp2" ".*macscp4_2_, MACSCP4_INCLUSION.*"
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switch -exact -- [info_macro WHERE] {
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{macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
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pass "info macro WHERE after `list macscp_4_2_from_macscp2'"
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}
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{macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
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# setup_kfail "gdb/555"
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fail "info macro WHERE after `list macscp_4_2_from_macscp2' (gdb/555)"
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}
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timeout {
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fail "info macro WHERE after `list macscp_4_2_from_macscp2' (timeout)"
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}
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default { fail "info macro WHERE after `list macscp_4_2_from_macscp2'" }
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}
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gdb_test "list macscp4_2_from_macscp3" ".*macscp4_2_, MACSCP4_INCLUSION.*"
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switch -exact -- [info_macro WHERE] {
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{macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
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pass "info macro WHERE after `list macscp_4_2_from_macscp3'"
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}
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{macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
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# setup_kfail "gdb/555"
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fail "info macro WHERE after `list macscp_4_2_from_macscp3' (gdb/555)"
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}
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timeout {
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fail "info macro WHERE after `list macscp_4_2_from_macscp3' (timeout)"
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}
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default { fail "info macro WHERE after `list macscp_4_2_from_macscp3'" }
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}
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#### Test the selection of the macro scope by the current frame.
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### A table of functions, in the order they will be reached, which is
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### also the order they appear in the preprocessed output. Each entry
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### has the form {FUNCNAME WHERE KFAILWHERE}, where:
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### - FUNCNAME is the name of the function,
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### - WHERE is the definition we expect to see for the macro `WHERE', as
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### returned by `info_macro', and
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### - KFAILWHERE is an alternate definition which should be reported
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### as a `known failure', due to GDB's inability to distinguish multiple
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### #inclusions of the same file.
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### KFAILWHERE may be omitted.
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set funcs {
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{
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macscp1_1
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{macscp1.c {before macscp1_1}}
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}
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{
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macscp2_1
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{macscp2.h macscp1.c {before macscp2_1}}
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}
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{
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macscp4_1_from_macscp2
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{macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
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{macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
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}
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{
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macscp4_2_from_macscp2
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{macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
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{macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
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}
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{
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macscp2_2
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{macscp2.h macscp1.c {before macscp2_2}}
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}
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| 270 |
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{
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macscp1_2
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{macscp1.c {before macscp1_2}}
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}
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{
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macscp3_1
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{macscp3.h macscp1.c {before macscp3_1}}
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}
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| 278 |
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{
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| 279 |
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macscp4_1_from_macscp3
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| 280 |
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{macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
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| 281 |
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{macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
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| 282 |
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}
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| 283 |
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{
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macscp4_2_from_macscp3
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{macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
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| 286 |
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{macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
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| 287 |
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}
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| 288 |
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{
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| 289 |
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macscp3_2
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| 290 |
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{macscp3.h macscp1.c {before macscp3_2}}
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| 291 |
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}
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| 292 |
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{
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| 293 |
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macscp1_3
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| 294 |
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{macscp1.c {before macscp1_3}}
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| 295 |
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}
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| 296 |
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}
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| 297 |
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# Start the program running.
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if {! [runto_main]} {
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fail "macro tests suppressed: couldn't run to main"
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return 0
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}
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| 304 |
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| 305 |
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# Set a breakpoint on each of the functions.
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foreach func_entry $funcs {
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| 307 |
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set func [lindex $func_entry 0]
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| 308 |
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gdb_test "break $func" "Breakpoint.*"
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| 309 |
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}
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| 310 |
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| 311 |
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# Run to each of the breakpoints and check the definition (or lack
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| 312 |
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# thereof) of each macro.
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for {set i 0} {$i < [llength $funcs]} {incr i} {
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| 314 |
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set func_entry [lindex $funcs $i]
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| 315 |
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set func [lindex $func_entry 0]
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set expected [lindex $func_entry 1]
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| 317 |
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set kfail_expected [lindex $func_entry 2]
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| 318 |
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| 319 |
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# Run to the breakpoint for $func.
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| 320 |
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gdb_test "continue" "Breakpoint $decimal, $func .*" "continue to $func"
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| 321 |
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| 322 |
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# Check the macro WHERE.
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| 323 |
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set result [info_macro WHERE]
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| 324 |
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if {[string compare $result $expected] == 0} {
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| 325 |
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pass "info macro WHERE stopped in $func"
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| 326 |
|
|
} elseif {[string compare $result $kfail_expected] == 0} {
|
| 327 |
|
|
# setup_kfail "gdb/555"
|
| 328 |
|
|
fail "info macro WHERE stopped in $func (gdb/555)"
|
| 329 |
|
|
} elseif {[string compare $result timeout] == 0} {
|
| 330 |
|
|
fail "info macro WHERE stopped in $func (timeout)"
|
| 331 |
|
|
} else {
|
| 332 |
|
|
fail "info macro WHERE stopped in $func"
|
| 333 |
|
|
}
|
| 334 |
|
|
|
| 335 |
|
|
# Check that the BEFORE_ macros for all prior functions are
|
| 336 |
|
|
# #defined, and that those for all subsequent functions are not.
|
| 337 |
|
|
for {set j 0} {$j < [llength $funcs]} {incr j} {
|
| 338 |
|
|
if {$j != $i} {
|
| 339 |
|
|
set func_j_entry [lindex $funcs $j]
|
| 340 |
|
|
set func_j [lindex $func_j_entry 0]
|
| 341 |
|
|
|
| 342 |
|
|
set before_macro "BEFORE_[string toupper $func_j]"
|
| 343 |
|
|
set test_name \
|
| 344 |
|
|
"$before_macro defined/undefined when stopped at $func"
|
| 345 |
|
|
set result [info_macro $before_macro]
|
| 346 |
|
|
|
| 347 |
|
|
# We can't get the right scope info when we're stopped in
|
| 348 |
|
|
# the macro4_ functions.
|
| 349 |
|
|
if {[string match macscp4_* $func]} {
|
| 350 |
|
|
# setup_kfail "gdb/555"
|
| 351 |
|
|
set test_name "$test_name (gdb/555)"
|
| 352 |
|
|
}
|
| 353 |
|
|
if {$j < $i} {
|
| 354 |
|
|
if {[llength $result] >= 2 && \
|
| 355 |
|
|
[string compare [lindex $result end] {}] == 0} {
|
| 356 |
|
|
pass $test_name
|
| 357 |
|
|
} elseif {[string compare $result timeout] == 0} {
|
| 358 |
|
|
fail "$test_name (timeout)"
|
| 359 |
|
|
} else {
|
| 360 |
|
|
fail "$test_name"
|
| 361 |
|
|
}
|
| 362 |
|
|
} elseif {$j > $i} {
|
| 363 |
|
|
switch -- [lindex $result end] {
|
| 364 |
|
|
undefined { pass $test_name }
|
| 365 |
|
|
timeout { fail "$test_name (timeout)" }
|
| 366 |
|
|
default {
|
| 367 |
|
|
fail "$test_name"
|
| 368 |
|
|
}
|
| 369 |
|
|
}
|
| 370 |
|
|
}
|
| 371 |
|
|
|
| 372 |
|
|
set until_macro "UNTIL_[string toupper $func_j]"
|
| 373 |
|
|
set test_name \
|
| 374 |
|
|
"$until_macro defined/undefined when stopped at $func"
|
| 375 |
|
|
set result [info_macro $until_macro]
|
| 376 |
|
|
|
| 377 |
|
|
# We can't get the right scope info when we're stopped in
|
| 378 |
|
|
# the macro4_ functions.
|
| 379 |
|
|
if {[string match macscp4_* $func]} {
|
| 380 |
|
|
# setup_kfail "gdb/555"
|
| 381 |
|
|
set test_name "$test_name (gdb/555)"
|
| 382 |
|
|
}
|
| 383 |
|
|
if {$j <= $i} {
|
| 384 |
|
|
switch -- [lindex $result end] {
|
| 385 |
|
|
undefined { pass $test_name }
|
| 386 |
|
|
timeout { fail "$test_name (timeout)" }
|
| 387 |
|
|
default {
|
| 388 |
|
|
fail "$test_name"
|
| 389 |
|
|
}
|
| 390 |
|
|
}
|
| 391 |
|
|
} elseif {$j > $i} {
|
| 392 |
|
|
if {[llength $result] >= 2 && \
|
| 393 |
|
|
[string compare [lindex $result end] {}] == 0} {
|
| 394 |
|
|
pass $test_name
|
| 395 |
|
|
} elseif {[string compare $result timeout] == 0} {
|
| 396 |
|
|
fail "$test_name (timeout)"
|
| 397 |
|
|
} else {
|
| 398 |
|
|
fail "$test_name"
|
| 399 |
|
|
}
|
| 400 |
|
|
}
|
| 401 |
|
|
}
|
| 402 |
|
|
}
|
| 403 |
|
|
}
|
