1 # Copyright 2020-2024 Free Software Foundation, Inc.
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16 # Test to reproduce the crash described in PR 26813.
18 # When reading a list in any table in the .debug_rnglists section, GDB would
19 # read the header at offset 0 in the section (the header of the first table).
20 # When the index of the list we read was greater than the number of lists of
21 # the first table, GDB would erroneously report that the index is invalid.
23 # So this test creates a .debug_rnglists section with two tables. The second
24 # table has more lists than the first one and we try to read a high index in
29 require dwarf2_support
31 # Test with 32-bit and 64-bit DWARF.
32 foreach_with_prefix is_64 {false true} {
34 standard_testfile main.c -dw64.S
35 set testfile ${testfile}-dw64
37 standard_testfile main.c -dw32.S
38 set testfile ${testfile}-dw32
41 set asm_file [standard_output_file $srcfile2]
42 Dwarf::assemble $asm_file {
45 # The CU uses the DW_FORM_rnglistx form to refer to the .debug_rnglists
52 {DW_AT_ranges 1 DW_FORM_rnglistx}
53 {DW_AT_rnglists_base cu_table DW_FORM_sec_offset}
55 # This tests a DW_AT_ranges attribute of form DW_FORM_rnglistx on a
56 # function, which was buggy at some point.
59 {DW_AT_ranges 2 DW_FORM_rnglistx}
64 rnglists {is-64 $is_64} {
65 # This table is unused, but exists so that the used table is not at
66 # the beginning of the section.
69 start_end 0x1000 0x2000
73 # The lists in this table are accessed by index (DW_FORM_rnglistx).
74 table {post-header-label cu_table} {
75 # This list is unused, but exists to offset the next ones.
77 start_end 0x2000 0x3000
82 start_end 0x3000 0x4000
87 start_end 0x3000 0x3010
93 if { [prepare_for_testing "failed to prepare" ${testfile} \
94 [list $srcfile $asm_file] {nodebug}] } {
98 # Sanity checks to make sure GDB slurped the symbols correctly.
99 gdb_test "p/x &foo" " = 0x3000"