https://sourceware.org/bugzilla/show_bug.cgi?id=28629
Bug ID: 28629 Summary: [gas, --gdwarf-5] File 0 has wrong dir Product: binutils Version: 2.38 (HEAD) Status: NEW Severity: normal Priority: P2 Component: gas Assignee: unassigned at sourceware dot org Reporter: vries at gcc dot gnu.org Target Milestone: --- Consider the following compilation: ... $ pwd -P /home/vries/gdb_versions/devel $ as --gdwarf-5 --64 -o tui-layout-asm-short-prog.o /home/vries/gdb_versions/devel/src/gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.S ... First, lets look at the debug info: ... $ readelf -wi tui-layout-asm-short-prog.o Contents of the .debug_info section: Compilation Unit @ offset 0x0: Length: 0x24 (32-bit) Version: 5 Unit Type: DW_UT_compile (1) Abbrev Offset: 0x0 Pointer Size: 8 <0><c>: Abbrev Number: 1 (DW_TAG_compile_unit) <d> DW_AT_stmt_list : 0x0 <11> DW_AT_low_pc : 0x0 <19> DW_AT_high_pc : 5 <1a> DW_AT_name : tui-layout-asm-short-prog.S <1e> DW_AT_comp_dir : /home/vries/gdb_versions/devel <22> DW_AT_producer : GNU AS 2.37.50 <26> DW_AT_language : 32769 (MIPS assembler) ... First we have: ... A DW_AT_comp_dir attribute whose value is a null-terminated string containing the current working directory of the compilation command that produced this compilation unit in whatever form makes sense for the host system. ... The DW_AT_comp_dir attribute looks correct, it matches pwd -P. Then we have: ... A DW_AT_name attribute whose value is a null-terminated string containing the full or relative path name (relative to the value of the DW_AT_comp_dir attribute, see below) of the primary source file from which the compilation unit was derived. ... That looks incorrect. It's a relative path name, so it's relative to /home/vries/gdb_versions/devel, which makes it /home/vries/gdb_versions/devel/tui-layout-asm-short-prog.S, which is a non-existent file. For comparison, we have with dwarf 4 instead: ... <19> DW_AT_name : /home/vries/gdb_versions/devel/src/gdb/testsuite/gdb.tui/tui-layout-asm-short-prog.S <1d> DW_AT_comp_dir : /home/vries/gdb_versions/devel ... -- You are receiving this mail because: You are on the CC list for the bug.