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- # Copyright 2021-2022 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.
- if {![dwarf2_support]} {
- unsupported "dwarf2 support required for this test"
- return 0
- }
- 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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