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139 lines
3.7 KiB
Plaintext
139 lines
3.7 KiB
Plaintext
# Copyright 2021-2023 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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load_lib dwarf.exp
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# Check psymtabs addrmaps generated from DW_AT_ranges of functions.
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# This test can only be run on targets which support DWARF-2 and use gas.
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require dwarf2_support
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standard_testfile -main.c .c -dw.S
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# We need to know the size of integer and address types in order to
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# write some of the debugging info we'd like to generate.
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#
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# For that, we ask GDB by debugging our test program. Any program
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# would do, but since we already have it specifically for this
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# testcase, might as well use that.
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list ${srcfile} ${srcfile2}]] } {
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return -1
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}
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set asm_file [standard_output_file $srcfile3]
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Dwarf::assemble $asm_file {
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global srcdir subdir srcfile srcfile2
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declare_labels integer_label func_ranges_label
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set int_size [get_sizeof "int" 4]
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# Find start address and length for our functions.
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set sources [list ${srcdir}/${subdir}/$srcfile ${srcdir}/${subdir}/$srcfile2]
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lassign [function_range foo $sources] \
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foo_start foo_len
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set foo_end "$foo_start + $foo_len"
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lassign [function_range foo_low $sources] \
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foo_low_start foo_low_len
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set foo_low_end "$foo_low_start + $foo_low_len"
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lassign [function_range bar $sources] \
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bar_start bar_len
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set bar_end "$bar_start + $bar_len"
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lassign [function_range baz $sources] \
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baz_start baz_len
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set baz_end "$baz_start + $baz_len"
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cu {} {
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compile_unit {
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{language @DW_LANG_C}
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{name dw-ranges-psym.c}
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{low_pc 0 addr}
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} {
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integer_label: DW_TAG_base_type {
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{DW_AT_byte_size $int_size DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name integer}
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}
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subprogram {
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{external 1 flag}
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{name foo}
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{ranges ${func_ranges_label} DW_FORM_sec_offset}
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}
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subprogram {
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{external 1 flag}
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{name bar}
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{low_pc $bar_start addr}
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{high_pc $bar_len DW_FORM_data4}
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}
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subprogram {
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{external 1 flag}
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{name baz}
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{low_pc $baz_start addr}
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{high_pc $baz_len DW_FORM_data4}
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}
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}
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}
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# Generate ranges data. Create a hole at $foo_low_start + 1" .. $foo_low_end.
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ranges {is_64 [is_64_target]} {
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func_ranges_label: sequence {
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range $foo_start $foo_end
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range $foo_low_start "$foo_low_start + 1"
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#range "$foo_low_start + 1" $foo_low_end
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}
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}
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}
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if { [build_executable "failed to prepare" ${testfile} \
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[list $srcfile $srcfile2 $asm_file] {nodebug}] } {
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return -1
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}
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clean_restart
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gdb_load_no_complaints $binfile
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if ![runto_main] {
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return -1
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}
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# Generate backtrace from baz, that visits the hole in the addrmap. If
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# the hole is there in the symbol table, but not the partial symbol table,
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# we run into:
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# (gdb) bt
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# warning: (Internal error: pc 0x555555554619 in read in psymtab, \
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# but not in symtab.)
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# ...
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# (gdb)
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gdb_test "break baz" \
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"Breakpoint.*at.*"
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gdb_test "continue"
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set re "warning: \\(Internal error: pc $hex in read in psymtab, but not in symtab\\.\\)"
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gdb_test_multiple "bt" "" {
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-re -wrap "$re.*" {
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fail $gdb_test_name
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}
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-re -wrap "" {
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pass $gdb_test_name
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}
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}
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