[Bug c++/61538] g++ compiled binary, linked to glibc libpthread, hangs on SGI MIPS R1x000 systems on Linux

["kumba at gentoo dot org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61538

--- Comment #11 from Joshua Kinard <kumba at gentoo dot org> ---
I also have another test case from glibc itself, where when compiling
glibc-2.19 w/ gcc-4.8.x or greater, at the end, it creates a statically-linked
version of 'ln' as 'sln', and tries to run that.  That binary also hangs, but
it hangs in glibc-specific code:

nptl/sysdeps/unix/sysv/linux/lowlevellock.c:
  >¦32        while (atomic_exchange_acq (futex, 2) != 0)
   ¦33          lll_futex_wait (futex, 2, LLL_PRIVATE);
   ¦34      }

Which looks like it's hanging in lll_futex_wait().  If I set a breakpoint on
that address in the asm layout, I can see this:

Breakpoint 1, 0x00423bf4 in __lll_lock_wait_private (futex=0x4a215c
<_IO_stdfile_1_lock>) at ../nptl/sysdeps/unix/sysv/linux/lowlevellock.c:33
   ¦0x423be0 <__lll_lock_wait_private+32>   0x7c03e83b
   ¦0x423be4 <__lll_lock_wait_private+36>   li     a2,2
   ¦0x423be8 <__lll_lock_wait_private+40>   lw     a1,-29832(v1)
   ¦0x423bec <__lll_lock_wait_private+44>   move   a3,zero
   ¦0x423bf0 <__lll_lock_wait_private+48>   li     v0,4238
B+>¦0x423bf4 <__lll_lock_wait_private+52>   syscall

(gdb) x/6i 0x4a215c
   0x4a215c <_IO_stdfile_1_lock>:       srl     zero,zero,0x0
   0x4a2160 <_IO_stdfile_1_lock+4>:     nop
   0x4a2164 <_IO_stdfile_1_lock+8>:     nop
   0x4a2168 <_IO_stdfile_0_lock>:       nop
   0x4a216c <_IO_stdfile_0_lock+4>:     nop
   0x4a2170 <_IO_stdfile_0_lock+8>:     nop

I did find two very recent patches on libc-alpha that deal specifically with
lowlevellock.h, by replacing it (and all other arch-specific variants) with a
generic lowlevellock.h file:
https://sourceware.org/ml/libc-alpha/2014-06/msg00174.html
https://sourceware.org/ml/libc-alpha/2014-06/msg00419.html

And this interesting comment:
https://sourceware.org/ml/libc-alpha/2014-06/msg00184.html

I am going to try rebuilding glibc with those and see if I am still getting
hangs or not.
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From: "FBergemann at web dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/61577] New: [4.9.0] can't compile on hp-ux v3 ia64
Date: Sat, 21 Jun 2014 08:00:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida577

            Bug ID: 61577
           Summary: [4.9.0] can't compile on hp-ux v3 ia64
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: FBergemann at web dot de
            Target: HP-UX v3 ia64

I cannot compile gcc-4.9.0 on a hp-ux B.11.31 (v3) ia64 machine.
I used following component:
> ls -tlr
total 40
drwxr-xr-x  18 frank os_int 8192 Jun 17 09:40 binutils-2.24
drwxr-xr-x  16 frank os_int 8192 Jun 17 15:31 gmp-6.0.0
drwxr-xr-x  10 frank os_int 8192 Jun 17 15:34 mpfr-3.1.2
drwxr-xr-x   7 frank os_int 8192 Jun 17 15:35 mpc-1.0.2
drwxr-xr-x  35 frank os_int 8192 Jun 21 09:31 gcc-4.9.0

+) binutis had been compiled separately first into a /gs/frank/hp-ux/gcc-4.9.0/
dir)
+) gmp, mpfr and mpc source directories had been linked below gcc directory.
+) $PATH had been set to select /usr/local/gcc-4.7.2 for compilation
   (compiler provided by HP)
+) compilation is for 32bit
+) ../configure --prefix=/gs/frank/hp-ux/gcc-4.9.0 --enable-languages=c,c++
--with-gnu-as --with-as=/gs/frank/hp-ux/gcc-4.9.0/bin/as --without-gnu-ld
--disable-nls --disable-shared

> cat configure.out.fbe
checking build system type... ia64-hp-hpux11.31
checking host system type... ia64-hp-hpux11.31
checking target system type... ia64-hp-hpux11.31
checking for a BSD-compatible install... /usr/local/bin/install -c
checking whether ln works... yes
checking whether ln -s works... yes
checking for a sed that does not truncate output... /usr/local/bin/sed
checking for gawk... gawk
checking for libatomic support... yes
checking for libcilkrts support... no
checking for libitm support... no
checking for libsanitizer support... no
checking for libvtv support... no
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking whether g++ accepts -static-libstdc++ -static-libgcc... yes
checking for gnatbind... no
checking for gnatmake... no
checking whether compiler driver understands Ada... no
checking how to compare bootstrapped objects... cmp --ignore-initial\x16 $$f1
$$f2
checking for objdir... .libs
checking for version 0.10 of ISL... no
checking for version 0.11 of ISL... no
checking for version 0.12 of ISL... no
*** This configuration is not supported in the following subdirectories:
     target-libcilkrts target-libitm target-libsanitizer target-libvtv
gnattools target-libada target-libgfortran target-libgo target-libffi
target-libbacktrace target-zlib target-libjava target-libobjc target-boehm-gc
    (Any other directories should still work fine.)
checking for default BUILD_CONFIG... bootstrap-debug
checking for --enable-vtable-verify... no
checking for bison... bison -y
checking for bison... bison
checking for gm4... no
checking for gnum4... no
checking for m4... m4
checking for flex... flex
checking for flex... flex
checking for makeinfo... makeinfo
checking for expect... expect
checking for runtest... no
checking for ar... ar
checking for as... as
checking for dlltool... no
checking for ld... (cached) /usr/ccs/bin/ld
checking for lipo... no
checking for nm... nm
checking for ranlib... ranlib
checking for strip... strip
checking for windres... no
checking for windmc... no
checking for objcopy... objcopy
checking for objdump... objdump
checking for readelf... readelf
checking for cc... cc
checking for c++... c++
checking for gcc... gcc
checking for gcj... no
checking for gfortran... no
checking for gccgo... no
checking for ar... /gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin/ar
checking for as... /gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin/as
checking for dlltool... no
checking for dlltool... no
checking for ld... no
checking for ld... ld
checking for lipo... no
checking for lipo... no
checking for nm... /gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin/nm
checking for objdump... /gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin/objdump
checking for ranlib... /gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin/ranlib
checking for readelf... no
checking for readelf... readelf
checking for strip... /gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin/strip
checking for windres... no
checking for windres... no
checking for windmc... no
checking for windmc... no
checking where to find the target ar... pre-installed in
/gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin
checking where to find the target as... pre-installed in
/gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin
checking where to find the target cc... just compiled
checking where to find the target c++... just compiled
checking where to find the target c++ for libstdc++... just compiled
checking where to find the target dlltool... host tool
checking where to find the target gcc... just compiled
checking where to find the target gcj... host tool
checking where to find the target gfortran... host tool
checking where to find the target gccgo... host tool
checking where to find the target ld... host tool
checking where to find the target lipo... host tool
checking where to find the target nm... pre-installed in
/gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin
checking where to find the target objdump... pre-installed in
/gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin
checking where to find the target ranlib... pre-installed in
/gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin
checking where to find the target readelf... host tool
checking where to find the target strip... pre-installed in
/gs/frank/hp-ux/gcc-4.9.0/ia64-hp-hpux11.31/bin
checking where to find the target windres... host tool
checking where to find the target windmc... host tool
checking whether to enable maintainer-specific portions of Makefiles... no
configure: creating ./config.status
config.status: creating Makefile

ERROR:

make[3]: Entering directory `/tmp/FBE/gcc-4.9.0/obj/gcc'
g++  -DUSE_LIBUNWIND_EXCEPTIONS  -g -DIN_GCC    -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-format -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H
-static-libstdc++ -static-libgcc -lunwind -o cc1plus \
      cp/cp-lang.o c-family/stub-objc.o cp/call.o cp/decl.o cp/expr.o cp/pt.o
cp/typeck2.o cp/class.o cp/decl2.o cp/error.o cp/lex.o cp/parser.o cp/ptree.o
cp/rtti.o cp/typeck.o cp/cvt.o cp/except.o cp/friend.o cp/init.o cp/method.o
cp/search.o cp/semantics.o cp/tree.o cp/repo.o cp/dump.o cp/optimize.o
cp/mangle.o cp/cp-objcp-common.o cp/name-lookup.o cp/cxx-pretty-print.o
cp/cp-cilkplus.o cp/cp-gimplify.o cp/cp-array-notation.o cp/lambda.o
cp/vtable-class-hierarchy.o attribs.o incpath.o c-family/c-common.o
c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o
c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o
c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o
c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o
c-family/c-cilkplus.o c-family/array-notation-common.o c-family/cilk.o
c-family/c-ubsan.o ia64-c.o default-c.o cc1plus-checksum.o libbackend.a main.o
tree-browser.o libcommon-target.a libcommon.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a
../libdecnumber/libdecnumber.a   -L/tmp/FBE/gcc-4.9.0/obj/./gmp/.libs
-L/tmp/FBE/gcc-4.9.0/obj/./mpfr/src/.libs
-L/tmp/FBE/gcc-4.9.0/obj/./mpc/src/.libs -lmpc -lmpfr -lgmp   -L../zlib -lz
ld: The value 0xfffffffffdf68820 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 74 of file
libbackend.a[function.o]
ld: The value 0xfffffffffdee13b0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 79 of file
libbackend.a[function.o]
ld: The value 0xfffffffffdfd2f10 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 60 of file
libbackend.a[gimple.o]
ld: The value 0xfffffffffdf4bab0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 65 of file
libbackend.a[gimple.o]
ld: The value 0xfffffffffde42460 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 207 of file
libbackend.a[gimple.o]
ld: The value 0xfffffffffde40a60 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 212 of file
libbackend.a[gimple.o]
ld: The value 0xfffffffffdffdbe0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 54 of file
libbackend.a[gimple-expr.o]
ld: The value 0xfffffffffdf767a0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 59 of file
libbackend.a[gimple-expr.o]
ld: The value 0xfffffffffde79210 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 21 of file
libbackend.a[gimple-iterator.o]
ld: The value 0xfffffffffde77cc0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 26 of file
libbackend.a[gimple-iterator.o]
ld: The value 0xfffffffffdf8b270 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x102 in section index 85 of file
libbackend.a[gimple-fold.o]
ld: The value 0xfffffffffde82160 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 106 of file
libbackend.a[gimple-fold.o]
ld: The value 0xfffffffffde807c0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 111 of file
libbackend.a[gimple-fold.o]
ld: The value 0xfffffffffdeb9900 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x22 in section index 172 of file
libbackend.a[gimple-pretty-print.o]
ld: The value 0xfffffffffdfe2cd0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0xc2 in section index 91 of file
libbackend.a[ipa-inline-analysis.o]
ld: The value 0xfffffffffdfdd7c0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x172 in section index 96 of file
libbackend.a[ipa-inline-analysis.o]
ld: The value 0xfffffffffdfdcf90 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x842 in section index 96 of file
libbackend.a[ipa-inline-analysis.o]
ld: The value 0xfffffffffdfdcef0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x8e2 in section index 96 of file
libbackend.a[ipa-inline-analysis.o]
ld: The value 0xfffffffffdfdcce0 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0xaf2 in section index 96 of file
libbackend.a[ipa-inline-analysis.o]
ld: The value 0xfffffffffdfd6b60 does not fit when applying the relocation
PCREL21B for symbol ".text" at offset 0x62 in section index 20 of file
libbackend.a[ira-color.o]
20 errors.
collect2: error: ld returned 1 exit status
make[3]: *** [cc1plus] Error 1
make[3]: Leaving directory `/tmp/FBE/gcc-4.9.0/obj/gcc'
make[2]: *** [all-stage1-gcc] Error 2
make[2]: Leaving directory `/tmp/FBE/gcc-4.9.0/obj'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/tmp/FBE/gcc-4.9.0/obj'
make: *** [all] Error 2