[Bug go/52586] New: libgo fails to build for mipsel64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[Bug go/52586] New: libgo fails to build for mipsel64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[doko at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

             Bug #: 52586
           Summary: libgo fails to build for mipsel64-linux-gnu (reference
                    to undefined name 'SYS_GETDENTS64')
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
        AssignedTo: ian@airs.com
        ReportedBy: doko@gcc.gnu.org


seen with 4.7.0 rc1 + updates. this is a multilib enabled build, the build
succeeds for the two 32bit abi's.

complete build log at
https://buildd.debian.org/status/fetch.php?pkg=gcc-4.7&arch=mipsel&ver=4.7.0~rc1-2&stamp=1331693034

need to start a local build ...

/bin/mkdir -p syscall; files=`echo ../../../../src/libgo/go/syscall/env_unix.go
../../../../src/libgo/go/syscall/syscall_errno.go
../../../../src/libgo/go/syscall/libcall_support.go
../../../../src/libgo/go/syscall/libcall_posix.go
../../../../src/libgo/go/syscall/socket.go
../../../../src/libgo/go/syscall/sockcmsg_unix.go
../../../../src/libgo/go/syscall/str.go
../../../../src/libgo/go/syscall/syscall.go
../../../../src/libgo/go/syscall/sockcmsg_linux.go
../../../../src/libgo/go/syscall/syscall_unix.go
../../../../src/libgo/go/syscall/exec_unix.go
../../../../src/libgo/go/syscall/exec_linux.go
../../../../src/libgo/go/syscall/libcall_wait4.go
../../../../src/libgo/go/syscall/sleep_select.go
../../../../src/libgo/go/syscall/errstr_linux.go
../../../../src/libgo/go/syscall/libcall_posix_largefile.go
../../../../src/libgo/go/syscall/socket_linux.go epoll.go
../../../../src/libgo/go/syscall/libcall_uname.go
../../../../src/libgo/go/syscall/netlink_linux.go
../../../../src/libgo/go/syscall/lsf_linux.go
../../../../src/libgo/go/syscall/libcall_linux.go libcalls.go sysinfo.go
syscall_arch.go runtime.gox sync.gox | sed -e 's/[^ ]*\.gox//g'`; /bin/bash
./libtool --tag GO --mode=compile
/build/buildd-gcc-4.7_4.7.0~rc1-2-mipsel-ImTNtr/gcc-4.7-4.7.0~rc1/build/./gcc/gccgo
-B/build/buildd-gcc-4.7_4.7.0~rc1-2-mipsel-ImTNtr/gcc-4.7-4.7.0~rc1/build/./gcc/
-B/usr/mipsel-linux-gnu/bin/ -B/usr/mipsel-linux-gnu/lib/ -isystem
/usr/mipsel-linux-gnu/include -isystem /usr/mipsel-linux-gnu/sys-include     
-O2 -g  -mabi=64 -I . -c -fgo-prefix="libgo_syscall" -o syscall/syscall.lo
$files
libtool: compile: 
"/build/buildd-gcc-4.7_4.7.0~rc1-2-mipsel-ImTNtr/gcc-4.7-4.7.0~rc1/build/./gcc/gccgo"
"-B/build/buildd-gcc-4.7_4.7.0~rc1-2-mipsel-ImTNtr/gcc-4.7-4.7.0~rc1/build/./gcc/"
-B/usr/mipsel-linux-gnu/bin/ -B/usr/mipsel-linux-gnu/lib/ -isystem
/usr/mipsel-linux-gnu/include -isystem /usr/mipsel-linux-gnu/sys-include -O2 -g
-mabi=64 -I . -c -fgo-prefix=libgo_syscall
../../../../src/libgo/go/syscall/env_unix.go
../../../../src/libgo/go/syscall/syscall_errno.go
../../../../src/libgo/go/syscall/libcall_support.go
../../../../src/libgo/go/syscall/libcall_posix.go
../../../../src/libgo/go/syscall/socket.go
../../../../src/libgo/go/syscall/sockcmsg_unix.go
../../../../src/libgo/go/syscall/str.go
../../../../src/libgo/go/syscall/syscall.go
../../../../src/libgo/go/syscall/sockcmsg_linux.go
../../../../src/libgo/go/syscall/syscall_unix.go
../../../../src/libgo/go/syscall/exec_unix.go
../../../../src/libgo/go/syscall/exec_linux.go
../../../../src/libgo/go/syscall/libcall_wait4.go
../../../../src/libgo/go/syscall/sleep_select.go
../../../../src/libgo/go/syscall/errstr_linux.go
../../../../src/libgo/go/syscall/libcall_posix_largefile.go
../../../../src/libgo/go/syscall/socket_linux.go epoll.go
../../../../src/libgo/go/syscall/libcall_uname.go
../../../../src/libgo/go/syscall/netlink_linux.go
../../../../src/libgo/go/syscall/lsf_linux.go
../../../../src/libgo/go/syscall/libcall_linux.go libcalls.go sysinfo.go
syscall_arch.go  -fPIC -o syscall/.libs/syscall.o
../../../../src/libgo/go/syscall/libcall_linux.go:206:26: error: reference to
undefined name 'SYS_GETDENTS64'
make[10]: *** [syscall/syscall.lo] Error 1
make[10]: Leaving directory
`/build/buildd-gcc-4.7_4.7.0~rc1-2-mipsel-ImTNtr/gcc-4.7-4.7.0~rc1/build/mipsel-linux-gnu/64/libgo'
make[9]: *** [all-recursive] Error 1

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |build
             Target|                            |mips*64-linux-gnu
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-03-17
            Summary|libgo fails to build for    |libgo fails to build for
                   |mipsel64-linux-gnu          |mips*64-linux-gnu
                   |(reference to undefined     |(reference to undefined
                   |name 'SYS_GETDENTS64')      |name 'SYS_GETDENTS64')
     Ever Confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-17 21:35:03 UTC ---
Confirmed on the trunk with glibc 2.15 on mips64-linux-gnu and not just the
little-endian version of mips64.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-20 07:48:52 UTC ---
Fails still as of today:
/home/apinski/src/gcc-fsf/local/gcc/libgo/go/syscall/libcall_linux.go:206:26:
error: reference to undefined name 'SYS_GETDENTS64'
  r1, _, errno := Syscall(SYS_GETDENTS64, uintptr(fd),
uintptr(unsafe.Pointer(p)), uintptr(len(buf)))
                          ^

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-20 07:52:10 UTC ---
SYS_getdents64 does not exist for either N32 or N64 with the version of glibc I
have.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #4 from Ian Lance Taylor <ian at airs dot com> 2012-04-30 15:45:06 UTC ---
Unfortunately the MIPS64 machine in the GCC compile farm, gcc42.fsffrance.org,
is running a version of glibc that is too old to build libgo.  It is using
glibc 2.7, which does not have a version of getcontext/setcontext/makecontext
for MIPS.  I see in the glibc-ports sources that those functions were added in
2009.  So unless I find another test machine I am not going to be able to
properly test a patch.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[ian at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #5 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> 2012-04-30 16:04:28 UTC ---
Author: ian
Date: Mon Apr 30 16:04:17 2012
New Revision: 186986

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186986
Log:
    PR go/52586
mksysinfo, syscall: Make sure SYS_GETDENTS64 is defined.

Fixes build on MIPS GNU/Linux.

Modified:
    trunk/libgo/go/syscall/libcall_linux.go
    trunk/libgo/mksysinfo.sh

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[ian at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #6 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> 2012-04-30 16:04:43 UTC ---
Author: ian
Date: Mon Apr 30 16:04:33 2012
New Revision: 186987

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186987
Log:
    PR go/52586
mksysinfo, syscall: Make sure SYS_GETDENTS64 is defined.

Fixes build on MIPS GNU/Linux.

Modified:
    branches/gcc-4_7-branch/libgo/go/syscall/libcall_linux.go
    branches/gcc-4_7-branch/libgo/mksysinfo.sh

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

Ian Lance Taylor <ian at airs dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #7 from Ian Lance Taylor <ian at airs dot com> 2012-04-30 16:08:54 UTC ---
This specific build problem is fixed.  I don't know if there are other
problems.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-30 18:01:04 UTC ---
(In reply to comment #4)
> Unfortunately the MIPS64 machine in the GCC compile farm, gcc42.fsffrance.org,
> is running a version of glibc that is too old to build libgo.  It is using
> glibc 2.7, which does not have a version of getcontext/setcontext/makecontext
> for MIPS.  I see in the glibc-ports sources that those functions were added in
> 2009.  So unless I find another test machine I am not going to be able to
> properly test a patch.

I will test the trunk later today on my machine which is currently running
glibc 2.15.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[doko at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #9 from Matthias Klose <doko at gcc dot gnu.org> 2012-05-01 23:14:15 UTC ---
Native configuration is mipsel-unknown-linux-gnu

                === libgo tests ===


Running target unix
FAIL: archive/zip

                === libgo Summary for unix ===

# of expected passes            122
# of unexpected failures        1

Running target unix/-mabi=n32
FAIL: archive/zip
FAIL: os/user

                === libgo Summary for unix/-mabi=n32 ===

# of expected passes            121
# of unexpected failures        2

Running target unix/-mabi=64
FAIL: archive/zip
FAIL: os/user

                === libgo Summary for unix/-mabi=64 ===

# of expected passes            121
# of unexpected failures        2

                === libgo Summary ===

# of expected passes            364
# of unexpected failures        5


this seems to work. the fails are:


--- FAIL: zip.TestReader (2.72 seconds)
        reader_test.go:254: error=open testdata/go-no-datadesc-sig.zip: No such
file or directory, want <nil>
        reader_test.go:254: error=open testdata/go-with-datadesc-sig.zip: No
such file or directory, want <nil>
panic: Error reading go-with-datadesc-sig.zip: open
testdata/go-with-datadesc-sig.zip: No such file or directory
 [recovered]
        panic: Error reading go-with-datadesc-sig.zip: open
testdata/go-with-datadesc-sig.zip: No such file or d
irectory
FAIL: archive/zip
../../../src/libgo/testsuite/gotest: line 448: gotest-timeout: No such file or
directory


--- FAIL: user.TestCurrent (0.14 seconds)
        user_test.go:35: Current: user: unknown userid 1174
--- FAIL: user.TestLookup (0.00 seconds)
        user_test.go:76: Current: user: unknown userid 1174
--- FAIL: user.TestLookupId (0.00 seconds)
        user_test.go:92: Current: user: unknown userid 1174
FAIL
FAIL: os/user

note that the user is not present in /etc/passwd.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #10 from Ian Lance Taylor <ian at airs dot com> 2012-05-02 04:33:56 UTC ---
I don't understand the archive/zip test failure.  The files in question are
libgo/go/archive/zip/testdata/go-with-datadesc-sig.zip and
go-no-datadesc-sig.zip.  They exist in the repository.  Do they exist in your
source tree?

The os/user test will fail if run by a user ID for which the libc function
getpwuid_r does not return any information.

[Bug go/52586] libgo fails to build for mips*64-linux-gnu (reference to undefined name 'SYS_GETDENTS64')

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52586

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-05-02 06:20:16 UTC ---
>getpwuid_r does not return any information.

There is a bug in the upstream glibc with respect of setregid setresgid
setresuid setreuid.  I have a patch but I have not submitted them upstream yet.