[Bug 217736] addr2line incorrectly resolves filename/lineno/function

2017-03-13 Thread bugzilla-noreply 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217736

--- Comment #1 from Marat Radchenko  ---
Additional info on various addr2line implementations misbehaving on this
testcase: https://github.com/gimli-rs/addr2line/issues/35#issue-213881844

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[Bug 217753] lld [llvm 4.0.0] Linker won't link on aarch64 (Error: Failed to open a.out)

2017-03-13 Thread bugzilla-noreply 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217753

Bug ID: 217753
   Summary: lld [llvm 4.0.0] Linker won't link on aarch64 (Error:
Failed to open a.out)
   Product: Base System
   Version: CURRENT
  Hardware: arm64
OS: Any
Status: New
  Severity: Affects Only Me
  Priority: ---
 Component: arm
  Assignee: freebsd-...@freebsd.org
  Reporter: wolfgang.me...@hob.de
CC: freebsd-toolchain@FreeBSD.org

Created attachment 180774
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=180774=edit
Output for verbose compilation/linking (cc -v -Wl,--verbose conftest.c)

When trying to compile C sources on 12-CURRENT (aarch64) with the newly
integrated LLVM 4.0 toolchain the compilation fails with ld giving an error on
failing to open the executable file to be produced by the compilation. An empty
file with the executable name and a .tmpXXX suffix is produced by the
linking process.

This has been observed using poudriere jails with a FreeBSD 12-CURRENT for
aarch64 after integration of the llvm 4.0 toolchain (tested with base r314564
and base r315016) running on an amd64 host using qemu-user-static for arm64
execution.

How to reproduce:
Build poudriere jail for HEAD and aarch64 architecture.
Enter jail and try to compile typical configure test source (referred to as
conftest.c):

  int main()
  {
;
return 0;
  }

Compilation:
>cc conftest.c
Output:
/usr/bin/ld: error: failed to open a.out: Unknown error -1
cc: error: linker command failed with exit code 1 (use -v to see invocation)

An empty a.out.tmpXXX is produced.

This happens with qemu-aarch64-static 2.6.90.g20160728_1 ( ports r424575 ).
With qemu-aarch64-static 2.8.50.g20170307 ( ports r435636 ) I get a qemu error:
/usr/ports/emulators/qemu-user-static/work/qemu-bsd-user-c0989c8/tcg/tcg.c:2017:
tcg fatal error
cc: error: unable to execute command: Abort trap (core dumped)
cc: error: linker command failed due to signal (use -v to see invocation)

Using lld 3.9.0 on aarch64 poudriere jails works fine with either qemu-emulated
execution.

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