-# Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010
-# Free Software Foundation, Inc.
+# Copyright 2002-2004, 2007-2012 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
# This file was written by Michael Snyder (msnyder@redhat.com)
# This is a test for the gdb command "generate-core-file".
-if $tracelevel then {
- strace $tracelevel
-}
-
-set prms_id 0
-set bug_id 0
-
# Single-threaded test case
-set testfile "pthreads"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/gcore-${testfile}
+set testfile "gcore-thread"
+set srcfile pthreads.c
+set objfile ${objdir}/${subdir}/${testfile}.o
+set binfile ${objdir}/${subdir}/${testfile}
+set corefile ${objdir}/${subdir}/${testfile}.test
+set core0file ${objdir}/${subdir}/${testfile}0.test
if [istarget "*-*-linux"] then {
set target_cflags "-D_MIT_POSIX_THREADS"
set target_cflags ""
}
-if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
+# Attempt to prevent -Wl,-z,relro which happens by default at least on
+# Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find
+# libpthread, therefore libthread_db will not fail as expected
+# on the test `zeroed-threads cannot be listed'.
+
+set opts [list debug "incdir=${objdir}"]
+if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objfile}" object $opts] != ""
+ || ([gdb_compile_pthreads "${objfile}" "${binfile}" executable [concat $opts {additional_flags=-Wl,-z,norelro}] ] != ""
+ && [gdb_compile_pthreads "${objfile}" "${binfile}" executable $opts] != "") } {
return -1
}
# Start with a fresh gdb.
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
+clean_restart ${testfile}
# regexp for "horizontal" text (i.e. doesn't include newline or
# carriage return)
set timeout 30
-send_gdb "help gcore\n"
-gdb_expect {
+gdb_test_multiple "help gcore" "help gcore" {
-re "Undefined command: .gcore.*$gdb_prompt $" {
# gcore command not supported -- nothing to test here.
unsupported "gdb does not support gcore on this target"
-re "Save a core file .*$gdb_prompt $" {
pass "help gcore"
}
- -re ".*$gdb_prompt $" {
- fail "help gcore"
- }
- timeout {
- fail "help gcore (timeout)"
- }
}
if { ! [ runto_main ] } then {
return -1
}
-send_gdb "info threads\n"
-gdb_expect {
+gdb_test_multiple "info threads" "threads are supported" {
-re ".* main .*$gdb_prompt $" {
# OK, threads are supported.
}
gdb_breakpoint "thread2"
gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running"
-set escapedfilename [string_to_regexp ${objdir}/${subdir}/gcore.test]
+set escapedfilename [string_to_regexp $corefile]
# Drop corefile
-gdb_test_multiple "gcore ${objdir}/${subdir}/gcore.test" \
- "save a corefile" \
+set core_supported 0
+gdb_test_multiple "gcore $corefile" "save a corefile" \
{
-re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
pass "save a corefile"
}
-re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
unsupported "save a corefile"
- global core_supported
- set core_supported 0
}
}
-global core_supported
if {!$core_supported} {
return -1
}
-# Now restart gdb and load the corefile.
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-
-send_gdb "core ${objdir}/${subdir}/gcore.test\n"
-gdb_expect {
- -re ".* is not a core dump:.*$gdb_prompt $" {
- fail "re-load generated corefile (bad file format)"
- # No use proceeding from here.
- return;
- }
- -re ".*: No such file or directory.*$gdb_prompt $" {
- fail "re-load generated corefile (file not found)"
- # No use proceeding from here.
- return;
- }
- -re ".*Couldn't find .* registers in core file.*$gdb_prompt $" {
- fail "re-load generated corefile (incomplete note section)"
- }
- -re "Core was generated by .*$gdb_prompt $" {
- pass "re-load generated corefile"
- }
- -re ".*$gdb_prompt $" {
- fail "re-load generated corefile"
- }
- timeout {
- fail "re-load generated corefile (timeout)"
+
+# Test the uninitialized thread list.
+# Provide the case of glibc td_thr_get_info handling of:
+# /* Special case for the main thread before initialization. */
+
+foreach symbol {__stack_user stack_used} {
+ set test "clear ${symbol}.next"
+ gdb_test_multiple "p *(void **) &${symbol} = 0" $test {
+ -re " = \\(void \\*\\) 0x0\r\n$gdb_prompt $" {
+ pass $test
+ }
+ -re "No symbol \"${symbol}\" in current context\\.\r\n$gdb_prompt $" {
+ xfail $test
+ # Do not do the verification.
+ set core0file ""
+ }
}
}
+if {"$core0file" != ""} {
+ gdb_test "gcore $core0file" "Saved corefile .*" "save a zeroed-threads corefile"
+}
+
+
+# Now restart gdb and load the corefile.
+clean_restart ${testfile}
+
+proc load_core { corefile } {
+ global gdb_prompt
+ global libthread_db_seen
+
+ set libthread_db_seen 0
+ gdb_test_multiple "core $corefile" \
+ "re-load generated corefile" {
+ -re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
+ set libthread_db_seen 1
+ exp_continue
+ }
+ -re " is not a core dump:.*\r\n$gdb_prompt $" {
+ fail "re-load generated corefile (bad file format)"
+ # No use proceeding from here.
+ return 0;
+ }
+ -re ": No such file or directory.*\r\n$gdb_prompt $" {
+ fail "re-load generated corefile (file not found)"
+ # No use proceeding from here.
+ return 0;
+ }
+ -re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
+ fail "re-load generated corefile (incomplete note section)"
+ }
+ -re "Core was generated by .*\r\n$gdb_prompt $" {
+ pass "re-load generated corefile"
+ }
+ }
+ return 1
+}
+
+if ![load_core $corefile] {
+ return
+}
+
# FIXME: now what can we test about the thread state?
# We do not know for certain that there should be at least
# three threads, because who knows what kind of many-to-one
gdb_test "info threads" ".*${nl}\\* ${horiz} thread2 .*" \
"thread2 is current thread in corefile"
+
+# Test the uninitialized thread list.
+
+if {"$core0file" != "" && [load_core $core0file]} {
+ set test "zeroed-threads cannot be listed"
+
+ if {!$libthread_db_seen} {
+ verbose -log "No libthread_db loaded - -Wl,-z,relro compilation?"
+ xfail $test
+ } else {
+ gdb_test "info threads" "Cannot find new threads: .*" $test
+ }
+}
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