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# Copyright 2021-2024 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
# Check psymtabs addrmaps generated from DW_AT_ranges of functions.
# This test can only be run on targets which support DWARF-2 and use gas.
require dwarf2_support
standard_testfile -main.c .c -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 func_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}
} {
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}
}
subprogram {
{external 1 flag}
{name foo}
{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. Create a hole at $foo_low_start + 1" .. $foo_low_end.
ranges {is_64 [is_64_target]} {
func_ranges_label: sequence {
range $foo_start $foo_end
range $foo_low_start "$foo_low_start + 1"
#range "$foo_low_start + 1" $foo_low_end
}
}
}
if { [build_executable "failed to prepare" ${testfile} \
[list $srcfile $srcfile2 $asm_file] {nodebug}] } {
return -1
}
clean_restart
gdb_load_no_complaints $binfile
if ![runto_main] {
return -1
}
# Generate backtrace from baz, that visits the hole in the addrmap. If
# the hole is there in the symbol table, but not the partial symbol table,
# we run into:
# (gdb) bt
# warning: (Internal error: pc 0x555555554619 in read in psymtab, \
# but not in symtab.)
# ...
# (gdb)
gdb_test "break baz" \
"Breakpoint.*at.*"
gdb_test "continue"
set re "warning: \\(Internal error: pc $hex in read in psymtab, but not in symtab\\.\\)"
gdb_test_multiple "bt" "" {
-re -wrap "$re.*" {
fail $gdb_test_name
}
-re -wrap "" {
pass $gdb_test_name
}
}
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