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# Copyright 2018-2019 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/>.
load_lib dwarf.exp
# Test that psymbols are made when DW_AT_ranges is used.
# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
unsupported "dwarf2 support required for this test"
return 0
}
if [get_compiler_info] {
return -1
}
if !$gcc_compiled {
unsupported "gcc required for this test"
return 0
}
standard_testfile dw2-ranges-main.c dw2-ranges-psym.c dw2-ranges-psym-dw.S
# We need to know the size of integer and address types in order to
# write some of the debugging info we'd like to generate.
#
# For that, we ask GDB by debugging our test program. Any program
# would do, but since we already have it specifically for this
# testcase, might as well use that.
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list ${srcfile} ${srcfile2}]] } {
return -1
}
set asm_file [standard_output_file $srcfile3]
Dwarf::assemble $asm_file {
global srcdir subdir srcfile srcfile2
declare_labels integer_label volatile_label func_ranges_label cu_ranges_label
set int_size [get_sizeof "int" 4]
# Find start address and length for our functions.
set sources [list ${srcdir}/${subdir}/$srcfile ${srcdir}/${subdir}/$srcfile2]
lassign [function_range foo $sources] \
foo_start foo_len
set foo_end "$foo_start + $foo_len"
lassign [function_range foo_low $sources] \
foo_low_start foo_low_len
set foo_low_end "$foo_low_start + $foo_low_len"
lassign [function_range bar $sources] \
bar_start bar_len
set bar_end "$bar_start + $bar_len"
lassign [function_range baz $sources] \
baz_start baz_len
set baz_end "$baz_start + $baz_len"
cu {} {
compile_unit {
{language @DW_LANG_C}
{name dw-ranges-psym.c}
{low_pc 0 addr}
{ranges ${cu_ranges_label} DW_FORM_sec_offset}
} {
integer_label: DW_TAG_base_type {
{DW_AT_byte_size $int_size DW_FORM_sdata}
{DW_AT_encoding @DW_ATE_signed}
{DW_AT_name integer}
}
volatile_label: DW_TAG_volatile_type {
{type :$integer_label}
}
subprogram {
{external 1 flag}
{name someothername}
{ranges ${func_ranges_label} DW_FORM_sec_offset}
}
subprogram {
{external 1 flag}
{name bar}
{low_pc $bar_start addr}
{high_pc $bar_len DW_FORM_data4}
}
subprogram {
{external 1 flag}
{name baz}
{low_pc $baz_start addr}
{high_pc $baz_len DW_FORM_data4}
}
}
}
# Generate ranges data.
ranges {is_64 [is_64_target]} {
func_ranges_label: sequence {
{range {$foo_start } $foo_end}
{range {$foo_low_start} $foo_low_end}
}
cu_ranges_label: sequence {
{range {$foo_start } $foo_end}
{range {$foo_low_start} $foo_low_end}
{range {$bar_start} $bar_end}
{range {$baz_start} $baz_end}
}
}
}
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $srcfile2 $asm_file] {nodebug}] } {
return -1
}
if ![runto_main] {
return -1
}
# "someothername" should be put into the partial symbol table, but
# there was a bug causing functions using DW_AT_ranges not to be.
# Note we use a name that is very different from the linkage name, in
# order to not set the breakpoint via minsyms.
gdb_test "break someothername" \
"Breakpoint.*at.*"
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