210 lines
6.5 KiB
Plaintext
210 lines
6.5 KiB
Plaintext
# Copyright 2013-2016 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
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
# Test adding and removing a symbol file dynamically:
|
|
# 1) Run to gdb_add_symbol_file in $srcfile.
|
|
# 2) Set a pending breakpoint at bar in $srcfile3.
|
|
# 3) Load the library's symbols using 'add-symbol-file'.
|
|
# 4) 'info files' must display ${lib_basename}.
|
|
# 5) Continue to bar in $srcfile3.
|
|
# 6) Set a breakpoint at foo in $srcfile3.
|
|
# 7) Continue to foo in $srcfile3.
|
|
# 8) Set a breakpoint at gdb_remove_symbol_file.
|
|
# 9) Continue to gdb_remove_symbol_file in $srcfile.
|
|
# 10) Remove the library's symbols using 'remove-symbol-file'.
|
|
# 11) 'info files' must not display ${lib_basename}, anymore.
|
|
# 12) Check that the breakpoints at foo and bar are pending.
|
|
# 13) Check that the execution can continue without error.
|
|
# 14) Regression test for a stale breakpoints bug.
|
|
|
|
if {![is_elf_target]} {
|
|
return 0
|
|
}
|
|
|
|
if [skip_shlib_tests] {
|
|
return 0
|
|
}
|
|
|
|
set target_size TARGET_UNKNOWN
|
|
if {[is_lp64_target]} {
|
|
set target_size TARGET_LP64
|
|
} elseif {[is_ilp32_target]} {
|
|
set target_size TARGET_ILP32
|
|
} else {
|
|
return 0
|
|
}
|
|
|
|
set main_basename sym-file-main
|
|
set loader_basename sym-file-loader
|
|
set lib_basename sym-file-lib
|
|
|
|
standard_testfile $main_basename.c $loader_basename.c $lib_basename.c
|
|
|
|
set libsrc "${srcdir}/${subdir}/${srcfile3}"
|
|
set lib_so [standard_output_file ${lib_basename}.so]
|
|
set lib_syms [shlib_symbol_file ${lib_so}]
|
|
set lib_dlopen [shlib_target_file ${lib_basename}.so]
|
|
|
|
set exec_opts [list debug "additional_flags= -I$srcdir/../../include/ -D$target_size\
|
|
-DSHLIB_NAME\\=\"$lib_dlopen\""]
|
|
|
|
if [get_compiler_info] {
|
|
return -1
|
|
}
|
|
|
|
if {[gdb_compile_shlib $libsrc $lib_so {debug}] != ""} {
|
|
untested ${testfile}
|
|
return
|
|
}
|
|
|
|
if {[prepare_for_testing $testfile $binfile "$srcfile $srcfile2" $exec_opts]} {
|
|
return
|
|
}
|
|
|
|
gdb_load_shlib ${lib_so}
|
|
|
|
if ![runto_main] then {
|
|
fail "Can't run to main"
|
|
return
|
|
}
|
|
|
|
# 1) Run to gdb_add_symbol_file in $srcfile for adding the library's
|
|
# symbols.
|
|
gdb_breakpoint gdb_add_symbol_file
|
|
gdb_continue_to_breakpoint gdb_add_symbol_file
|
|
|
|
# 2) Set a pending breakpoint at bar in $srcfile3.
|
|
set result [gdb_breakpoint bar allow-pending]
|
|
if {!$result} then {
|
|
return
|
|
}
|
|
|
|
# 3) Add the library's symbols using 'add-symbol-file'.
|
|
set result [gdb_test "add-symbol-file ${lib_syms} addr" \
|
|
"Reading symbols from .*${lib_syms}\\.\\.\\.done\\." \
|
|
"add-symbol-file ${lib_basename}.so addr" \
|
|
"add symbol table from file \".*${lib_basename}\\.so\"\
|
|
at.*\\(y or n\\) " \
|
|
"y"]
|
|
if {$result != 0} then {
|
|
return
|
|
}
|
|
|
|
# 4) 'info files' must display $srcfile3.
|
|
gdb_test "info files" \
|
|
"^(?=(.*${lib_basename})).*" \
|
|
"info files must display ${lib_basename}"
|
|
|
|
# 5) Continue to bar in $srcfile3 to ensure that the breakpoint
|
|
# was bound correctly after adding $shilb_name.
|
|
set lnum_bar [gdb_get_line_number "break at bar" $srcfile3]
|
|
gdb_continue_to_breakpoint bar ".*${lib_basename}\\.c:$lnum_bar.*"
|
|
|
|
# 6) Set a breakpoint at foo in $srcfile3.
|
|
set result [gdb_breakpoint foo]
|
|
if {!$result} then {
|
|
return
|
|
}
|
|
|
|
# 7) Continue to foo in $srcfile3 to ensure that the breakpoint
|
|
# was bound correctly.
|
|
set lnum_foo [gdb_get_line_number "break at foo" $srcfile3]
|
|
gdb_continue_to_breakpoint foo ".*${lib_basename}\\.c:$lnum_foo.*"
|
|
|
|
# 8) Set a breakpoint at gdb_remove_symbol_file in $srcfile for
|
|
# removing the library's symbols.
|
|
set result [gdb_breakpoint gdb_remove_symbol_file]
|
|
if {!$result} then {
|
|
return
|
|
}
|
|
|
|
# 9) Continue to gdb_remove_symbol_file in $srcfile.
|
|
gdb_continue_to_breakpoint gdb_remove_symbol_file
|
|
|
|
# 10) Remove the library's symbols using 'remove-symbol-file'.
|
|
set result [gdb_test "remove-symbol-file -a addr" \
|
|
""\
|
|
"remove-symbol-file -a addr" \
|
|
"Remove symbol table from file \".*${lib_basename}\\.so\"\\?\
|
|
.*\\(y or n\\) " \
|
|
"y"]
|
|
if {$result != 0} then {
|
|
return
|
|
}
|
|
|
|
# 11) 'info files' must not display ${lib_basename}, anymore.
|
|
gdb_test "info files" \
|
|
"^(?!(.*${lib_basename})).*" \
|
|
"info files must not display ${lib_basename}"
|
|
|
|
# 12) Check that the breakpoints at foo and bar are pending after
|
|
# removing the library's symbols.
|
|
gdb_test "info breakpoints 3" \
|
|
".*PENDING.*" \
|
|
"breakpoint at foo is pending"
|
|
|
|
gdb_test "info breakpoints 4" \
|
|
".*PENDING.*" \
|
|
"breakpoint at bar is pending"
|
|
|
|
# 13) Check that the execution can continue without error.
|
|
set lnum_reload [gdb_get_line_number "reload lib here"]
|
|
gdb_breakpoint $lnum_reload
|
|
gdb_continue_to_breakpoint reload ".*${srcfile}:$lnum_reload.*"
|
|
|
|
# 14) Regression test for a stale breakpoints bug. Check whether
|
|
# unloading symbols manually without the program actually unloading
|
|
# the library, when breakpoints are inserted doesn't leave stale
|
|
# breakpoints behind.
|
|
with_test_prefix "stale bkpts" {
|
|
# Force breakpoints always inserted.
|
|
gdb_test_no_output "set breakpoint always-inserted on"
|
|
|
|
# Get past the library reload.
|
|
gdb_continue_to_breakpoint gdb_add_symbol_file
|
|
|
|
# Load the library's symbols.
|
|
gdb_test "add-symbol-file ${lib_syms} addr" \
|
|
"Reading symbols from .*${lib_syms}\\.\\.\\.done\\." \
|
|
"add-symbol-file ${lib_basename}.so addr" \
|
|
"add symbol table from file \".*${lib_syms}\"\
|
|
at.*\\(y or n\\) " \
|
|
"y"
|
|
|
|
# Set a breakpoint at baz, in the library.
|
|
gdb_breakpoint baz
|
|
|
|
gdb_test "info breakpoints 7" ".*y.*0x.*in baz.*" \
|
|
"breakpoint at baz is resolved"
|
|
|
|
# Unload symbols manually without the program actually unloading
|
|
# the library.
|
|
gdb_test "remove-symbol-file -a addr" \
|
|
"" \
|
|
"remove-symbol-file -a addr" \
|
|
"Remove symbol table from file \".*${lib_basename}\\.so\"\\?\
|
|
.*\\(y or n\\) " \
|
|
"y"
|
|
|
|
gdb_test "info breakpoints 7" ".*PENDING.*" \
|
|
"breakpoint at baz is pending"
|
|
|
|
# Check that execution can continue without error. If GDB leaves
|
|
# breakpoints behind, we'll get back a spurious SIGTRAP.
|
|
set lnum_end [gdb_get_line_number "end here"]
|
|
gdb_breakpoint $lnum_end
|
|
gdb_continue_to_breakpoint "end here" ".*end here.*"
|
|
}
|