[llvm-bugs] [Bug 30539] New: Assertion failed: (Piece.Live), function getOffset, file .../llvm/tools/lld/ELF/InputSection.cpp, line 619

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30539

            Bug ID: 30539
           Summary: Assertion failed: (Piece.Live), function getOffset,
                    file .../llvm/tools/lld/ELF/InputSection.cpp, line 619
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: ELF
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm at sjor.sg
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Building a simple "hello world" binary fails with the assertion error given in
the summary. If clang is not called with -g, or lld is not called with
--gc-sections, the problem disappears. This is llvm & lld trunk, r282489.

$ cat simple.cpp
#include <stdio.h>

int main(void) {
    dprintf(1, "Hello, world\n");
}

$ x86_64-unknown-cloudabi-c++ -v simple.cpp -g -o simple
[...]
 "/usr/local/bin/x86_64-unknown-cloudabi-ld" -Bstatic --no-dynamic-linker -pie
-zrelro --eh-frame-hdr --gc-sections -o simple
/usr/local/llvm39/bin/../x86_64-unknown-cloudabi/lib/crt0.o
/usr/local/llvm39/bin/../x86_64-unknown-cloudabi/lib/crtbegin.o
-L/usr/local/llvm39/bin/../x86_64-unknown-cloudabi/lib /tmp/simple-813c59.o
-lc++ -lc++abi -lunwind -lc -lcompiler_rt
/usr/local/llvm39/bin/../x86_64-unknown-cloudabi/lib/crtend.o
Assertion failed: (Piece.Live), function getOffset, file
/root/llvm/tools/lld/ELF/InputSection.cpp, line 619.
clang-3.9: error: unable to execute command: Abort trap (core dumped)
clang-3.9: error: linker command failed due to signal (use -v to see
invocation)

The repro.cpio is attached.

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