https://sourceware.org/bugzilla/show_bug.cgi?id=33029
Bug ID: 33029
Summary: Internal error (segfault) in dwarf2_finish with
--gdwarf-5
Product: binutils
Version: 2.44
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: rsworktech at outlook dot com
Target Milestone: ---
Host: x86_64-linux-gnu
Target: riscv64-linux-gnu
Created attachment 16108
--> https://sourceware.org/bugzilla/attachment.cgi?id=16108&action=edit
Reproducer
When assembling the attached assembly file, gas crashed with a segmentation
fault.
This is reproducible natively on riscv64 and also reproducible with
riscv64-linux-gnu-as on x86_64 linux.
$ riscv64-linux-gnu-as --gdwarf-5 $'-march=rv64gc' $'-mabi=lp64d'
$'-misa-spec=20191213' -o push_registers_asm.o push_registers_asm.s
push_registers_asm.s: Assembler messages:
push_registers_asm.s: Internal error (Segmentation fault).
Please report this bug.
The relevant CLI flag is --gdwarf-5, removing that flag could workaround this
bug.
GDB:
Program received signal SIGSEGV, Segmentation fault.
0x0000003ff7ac530e in strlen () from /usr/lib/libc.so.6
(gdb) bt
#0 0x0000003ff7ac530e in strlen () from /usr/lib/libc.so.6
#1 0x0000002aaaadb5ee in out_debug_str (str_seg=0x2aaab27a70,
name_sym=<synthetic pointer>, comp_dir_sym=<synthetic pointer>,
producer_sym=<synthetic pointer>) at
/usr/src/debug/binutils/binutils-gdb/gas/dwarf2dbg.c:3055
#2 dwarf2_finish () at
/usr/src/debug/binutils/binutils-gdb/gas/dwarf2dbg.c:3270
#3 0x0000002aaaad53aa in main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/binutils/binutils-gdb/gas/as.c:1461
(gdb) bt full
#0 0x0000003ff7ac530e in strlen () from /usr/lib/libc.so.6
No symbol table info available.
#1 0x0000002aaaadb5ee in out_debug_str (str_seg=0x2aaab27a70,
name_sym=<synthetic pointer>, comp_dir_sym=<synthetic pointer>,
producer_sym=<synthetic pointer>) at
/usr/src/debug/binutils/binutils-gdb/gas/dwarf2dbg.c:3055
producer =
"\032ī\252*\000\000\000\"\000\000\000\000\000\000\000\360k\341\367?\000\000\000\260嵪*\000\000\000`\000\000\000\000\000\000\000
\360\377\377?\000\000\000\356=\326\367?\000\000\000@\360\377\377?\000\000\0000\263\260\25
2*\000\000\000\005", '\000' <repeats 15 times>,
"\250֫\252*\000\000\0000\263\260\252*", '\000' <repeats 12 times>,
"\t\266\252*\000\000\000p\360\377\377?\000\000"
len = <optimized out>
p = <optimized out>
first_file = <optimized out>
comp_dir = <optimized out>
producer = <optimized out>
p = <optimized out>
len = <optimized out>
first_file = <optimized out>
__PRETTY_FUNCTION__ = <optimized out>
comp_dir = <optimized out>
dirname = <optimized out>
#2 dwarf2_finish () at
/usr/src/debug/binutils/binutils-gdb/gas/dwarf2dbg.c:3270
abbrev_seg = 0x2aaab28130
aranges_seg = <optimized out>
str_seg = 0x2aaab27a70
producer_sym = <optimized out>
ranges_sym = 0x0
func_form = 0 '\000'
name_sym = 0x2aaab6b0d0
comp_dir_sym = <optimized out>
line_seg = 0x2aaab27948
s = <optimized out>
info_seg = 0x2aaab28008
emit_other_sections = <optimized out>
empty_debug_line = <optimized out>
__PRETTY_FUNCTION__ = "dwarf2_finish"
#3 0x0000002aaaad53aa in main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/binutils/binutils-gdb/gas/as.c:1461
argv_orig = <optimized out>
sob = {st_dev = 66307, st_ino = 2103156, st_mode = 33188, st_nlink = 1,
st_uid = 1010, st_gid = 1010, st_rdev = 0, __pad1 = 0, st_size = 0, st_blksize
= 4096, __pad2 = 0, st_blocks = 0, st_atim = {tv_sec = 1748349201,
tv_nsec = 648024486}, st_mtim = {tv_sec = 1748349201, tv_nsec =
648024486}, st_ctim = {tv_sec = 1748349201, tv_nsec = 648024486},
__glibc_reserved = {0, 0}}
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