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[gdb/testsuite] Fix buffer full errors in gdb.mi/mi-sym-info.exp
With debug info packages for system libs installed, I run into buffer full errors with test-case gdb.mi/mi-sym-info.exp. Fix these using exp_continue. This exposes timeouts due to gdb taking a long time before starting to print output. Fix these using with_timeout_factor. Tested on x86_64-linux, with make targets check and check-read1. gdb/testsuite/ChangeLog: 2020-03-13 Tom de Vries <tdevries@suse.de> * gdb.mi/mi-sym-info.exp: Fix buffer full errors, and timeouts.
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Tom de Vries
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@ -1,3 +1,7 @@
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2020-03-13 Tom de Vries <tdevries@suse.de>
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* gdb.mi/mi-sym-info.exp: Fix buffer full errors, and timeouts.
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2020-03-13 Tom de Vries <tdevries@suse.de>
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* gdb.mi/mi-sym-info.exp: Make matching more precise.
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@ -15,6 +15,13 @@
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# Test -symbol-info-functions, -symbol-info-variables, and
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# -symbol-info-types.
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#
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# These tests can generate large amounts of output, which can cause gdb to be
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# slow in two different ways:
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# - it takes long before the command starts producing output
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# - it takes long to print all the output
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# We can prevent timeouts due to the latter using exp_continue, but for
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# the former that doesn't work. There we use with_timeout_factor instead.
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load_lib mi-support.exp
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set MIFLAGS "-i=mi"
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@ -51,17 +58,65 @@ set type_syms \
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# Fetch all functions, variables and types without any non-debug
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# symbols.
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mi_gdb_test "111-symbol-info-functions" \
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"111\\^done,${debug_only_syms}" \
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"List all functions from debug information only"
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set testname "List all functions from debug information only"
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set cmd "111-symbol-info-functions"
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set state 0
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gdb_test_multiple $cmd $testname -prompt "${mi_gdb_prompt}$" {
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-re "111\\^done,symbols=\{debug=\\\[${symtab_re}" {
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if { $state == 0 } { incr state }
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exp_continue
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}
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-re ",${symtab_re}" {
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exp_continue
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}
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-re "\\\]\}\r\n${mi_gdb_prompt}$" {
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if { $state == 1 } {
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pass $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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mi_gdb_test "112-symbol-info-variables" \
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"112\\^done,${debug_only_syms}" \
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"List all variables from debug information only"
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set testname "List all variables from debug information only"
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set cmd "112-symbol-info-variables"
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set state 0
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gdb_test_multiple $cmd $testname -prompt "${mi_gdb_prompt}$" {
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-re "112\\^done,symbols=\{debug=\\\[${symtab_re}" {
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if { $state == 0 } { incr state }
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exp_continue
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}
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-re ",${symtab_re}" {
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exp_continue
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}
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-re "\\\]\}\r\n${mi_gdb_prompt}$" {
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if { $state == 1 } {
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pass $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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mi_gdb_test "113-symbol-info-types" \
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"113\\^done,${type_syms}" \
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"List all types"
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set testname "List all types"
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set cmd "113-symbol-info-types"
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set state 0
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gdb_test_multiple $cmd $testname -prompt "${mi_gdb_prompt}$" {
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-re "113\\^done,symbols=\{debug=\\\[${symtab_type_re}" {
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if { $state == 0 } { incr state }
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exp_continue
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}
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-re ",${symtab_type_re}" {
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exp_continue
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}
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-re "\\\]\}\r\n${mi_gdb_prompt}$" {
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if { $state == 1 } {
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pass $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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# Fetch functions and variables but also grab the non-debug symbols
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# (from the symbol table). There's often so much output output from
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@ -69,34 +124,98 @@ mi_gdb_test "113-symbol-info-types" \
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# fetching the output piece by piece.
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set testname "List all functions"
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set cmd "114-symbol-info-functions --include-nondebug"
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set state 0
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gdb_test_multiple $cmd ${testname} -prompt "${mi_gdb_prompt}$" {
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-re "114\\^done,symbols=\{debug=\\\[${symtab_re}(?:,${symtab_re})*\\\],nondebug=\\\[" {
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-re "114\\^done,symbols=\{" {
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if { $state == 0 } { set state 1 }
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exp_continue
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}
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-re "debug=\\\[${symtab_re}" {
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if { $state == 1 } { set state 2 }
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exp_continue
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}
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-re ",${symtab_re}" {
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exp_continue
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}
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-re "\\\],nondebug=\\\[" {
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if { $state == 2 } { set state 3 }
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}," {
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}\\\]\}\r\n${mi_gdb_prompt}$" {
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pass ${testname}
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if { $state == 3 } {
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pass $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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set testname "List all variables"
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set cmd "115-symbol-info-variables --include-nondebug"
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gdb_test_multiple $cmd ${testname} -prompt "${mi_gdb_prompt}$" {
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-re "115\\^done,symbols=\{debug=\\\[${symtab_re}(?:,${symtab_re})*\\\],nondebug=\\\[" {
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verbose -log "Got the first part of the input"
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exp_continue
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with_timeout_factor 2 {
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set testname "List all variables"
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set cmd "115-symbol-info-variables --include-nondebug"
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set state 0
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gdb_test_multiple $cmd ${testname} -prompt "${mi_gdb_prompt}$" {
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-re "115\\^done,symbols=\{" {
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if { $state == 0 } { set state 1 }
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exp_continue
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}
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-re "debug=\\\[${symtab_re}" {
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if { $state == 1 } { set state 2 }
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exp_continue
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}
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-re ",${symtab_re}" {
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exp_continue
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}
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-re "\\\],nondebug=\\\[" {
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if { $state == 2 } { set state 3 }
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}," {
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}\\\]\}\r\n${mi_gdb_prompt}$" {
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if { $state == 3 } {
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pass $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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}
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-re "\{address=${qstr},name=${qstr}\}," {
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}\\\]\}\r\n${mi_gdb_prompt}$" {
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pass ${testname}
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with_timeout_factor 2 {
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set testname "List all variables"
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set cmd "115-symbol-info-variables --include-nondebug"
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set state 0
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gdb_test_multiple $cmd ${testname} -prompt "${mi_gdb_prompt}$" {
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-re "115\\^done,symbols=\{" {
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if { $state == 0 } { incr state }
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exp_continue
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}
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-re "debug=\\\[${symtab_re}" {
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if { $state == 1 } { incr state }
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exp_continue
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}
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-re ",${symtab_re}" {
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exp_continue
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}
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-re "\\\],nondebug=\\\[" {
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if { $state == 2 } { incr state }
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}," {
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exp_continue
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}
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-re "\{address=${qstr},name=${qstr}\}\\\]\}\r\n${mi_gdb_prompt}$" {
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if { $state == 3 } {
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pass $gdb_test_name
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} else {
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fail $gdb_test_name
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}
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}
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}
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}
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