Package: gdb Version: 10.1-2 Tags: patch Forwarded: https://sourceware.org/bugzilla/show_bug.cgi?id=27354
Dear Maintainer,
GDB 10.1 is unable to debug binaries produced by GCC 11.2.0 with the
-gsplit-dwarf switch. GCC 11, which is now in Debian sid, uses DWARFv5
debugging format by default. With -gdwarf-4 the error does not appear.
builder@barberry:/tmp/tmp.qHMJOXsPej$ cat hello.c
#include <stdio.h>
int main()
{
puts("Hello everybody!");
return 0;
}
builder@barberry:/tmp/tmp.qHMJOXsPej$ gcc -g -gsplit-dwarf -c hello.c
builder@barberry:/tmp/tmp.qHMJOXsPej$ gcc hello.o -o hello
builder@barberry:/tmp/tmp.qHMJOXsPej$ gdb -silent hello
Reading symbols from hello...
Dwarf Error: wrong unit_type in compilation unit header (is DW_UT_split_compile
(0x05), should be DW_UT_type (0x02)) [in module /tmp/tmp.qHMJOXsPej/hello.dwo]
(No debugging symbols found in hello)
(gdb) q
The attached patch against GDB in unstable seems to be fixing the issue.
diffstat for gdb-10.1 gdb-10.1 changelog | 6 ++++++ patches/Fix-wrong-unit_type-Dwarf-Error.patch | 11 +++++++++++ patches/series | 1 + 3 files changed, 18 insertions(+) diff -Nru gdb-10.1/debian/changelog gdb-10.1/debian/changelog --- gdb-10.1/debian/changelog 2021-03-04 21:37:19.000000000 +0300 +++ gdb-10.1/debian/changelog 2021-12-25 10:45:33.000000000 +0300 @@ -1,3 +1,9 @@ +gdb (10.1-2local1) unstable; urgency=medium + + * Build for internal use. + + -- Nicholas Guriev <[email protected]> Sat, 25 Dec 2021 10:45:33 +0300 + gdb (10.1-2) unstable; urgency=high * Acknowledge past contributions from Matthias and Samuel. diff -Nru gdb-10.1/debian/patches/Fix-wrong-unit_type-Dwarf-Error.patch gdb-10.1/debian/patches/Fix-wrong-unit_type-Dwarf-Error.patch --- gdb-10.1/debian/patches/Fix-wrong-unit_type-Dwarf-Error.patch 1970-01-01 03:00:00.000000000 +0300 +++ gdb-10.1/debian/patches/Fix-wrong-unit_type-Dwarf-Error.patch 2021-12-25 10:42:54.000000000 +0300 @@ -0,0 +1,11 @@ +--- a/gdb/dwarf2/read.c ++++ b/gdb/dwarf2/read.c +@@ -12943,7 +12943,7 @@ open_and_init_dwo_file (dwarf2_cu *cu, c + { + create_debug_type_hash_table (per_objfile, dwo_file.get (), + &dwo_file->sections.info, dwo_file->tus, +- rcuh_kind::TYPE); ++ rcuh_kind::COMPILE); + } + + if (dwarf_read_debug) diff -Nru gdb-10.1/debian/patches/series gdb-10.1/debian/patches/series --- gdb-10.1/debian/patches/series 2021-03-04 21:21:03.000000000 +0300 +++ gdb-10.1/debian/patches/series 2021-12-25 10:40:05.000000000 +0300 @@ -11,3 +11,4 @@ 2bf3b79d05bf85e41cbdcb020bd1cc424f59dd9a.diff fork-inferior-fix vm_min_max_address +Fix-wrong-unit_type-Dwarf-Error.patch
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