`error: Unexpected` and unsuccessful exit code in riscv64-linux `zig objcopy -S`, despite of actually doing the work.

[vi]

Zig Version

0.14.0-dev.3445+6c3cbb0c8

Also happens with 0.13.0.

Does not happen with 0.11.0, but size reduction is smaller than with 0.13.0

Steps to Reproduce and Observed Behavior

$ echo 'int main(){}' > hello.c
$ /opt/zig-linux-x86_64-0.14.0-dev.3445+6c3cbb0c8/zig cc --target=riscv64-linux hello.c -o hello
$ /opt/zig-linux-x86_64-0.14.0-dev.3445+6c3cbb0c8/zig objcopy -S hello hello2
error: Unexpected
$ echo $?
1
$ ./hello
$ ./hello2
$ ls -sh hello hello2
2.0M hello  404K hello2

Expected Behavior

No error: Unexpected message and exit code 0.

[alexrp]

...snip...
pread64(3, "Linker: LLD 19.1.7 (git@github.c"..., 201, 860430) = 201
pwrite64(4, "Linker: LLD 19.1.7 (git@github.c"..., 201, 150232) = 201
pwritev(4, [{iov_base="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., iov_len=710198}], 1, 150433) = 284736
pwritev(4, [{iov_base=0x1048000, iov_len=425462}], 1, 435169) = -1 EFAULT (Bad address)
close(4)                                = 0
close(3)                                = 0
munmap(0x723fe5fcc000, 1363968)         = 0
gettid()                                = 91134
write(2, "error: Unexpected\n", 18error: Unexpected
)     = 18
exit_group(1)                           = ?
+++ exited with 1 +++

[alexrp]

With ZIG_DEBUG_CMD=1:

thread 100303 panic: index out of bounds: index 710198, len 4096
/home/alexrp/Source/ziglang/zig/lib/compiler/objcopy.zig:1464:101: 0x115d838 in write (objcopy)
                                consolidated.appendAssumeCapacity(.{ .write_data = .{ .data = zeroes[0..@intCast(range.out_offset - offset)], .out_offset = offset } });
                                                                                                    ^
/home/alexrp/Source/ziglang/zig/lib/compiler/objcopy.zig:1353:36: 0x1162571 in emit (objcopy)
            try ElfFileHelper.write(allocator, out_file, in_file, cmdbuf.items);
                                   ^
/home/alexrp/Source/ziglang/zig/lib/compiler/objcopy.zig:811:30: 0x1169f91 in stripElf (objcopy)
            try elf_file.emit(allocator, out_file, in_file, .{
                             ^
/home/alexrp/Source/ziglang/zig/lib/compiler/objcopy.zig:211:25: 0x1173cc2 in cmdObjCopy (objcopy)
            try stripElf(arena, in_file, out_file, elf_hdr, .{
                        ^
/home/alexrp/Source/ziglang/zig/lib/compiler/objcopy.zig:22:22: 0x117543a in main (objcopy)
    return cmdObjCopy(gpa, arena, args[1..]);
                     ^
/home/alexrp/Source/ziglang/zig/lib/std/start.zig:656:37: 0x11549ba in posixCallMainAndExit (objcopy)
            const result = root.main() catch |err| {
                                    ^
/home/alexrp/Source/ziglang/zig/lib/std/start.zig:271:5: 0x115456d in _start (objcopy)
    asm volatile (switch (native_arch) {
    ^
???:?:?: 0x0 in ??? (???)