On Sat, Feb 11, 2012 at 03:14:40PM +0100, Eric Botcazou wrote:
> Hi,
>
> this completes the half-implemented linking scheme of libitm and makes it
> mimic
> that of libgomp entirely. We need the -pthread thing on Solaris 8.
>
> Tested on SPARC/Solaris 8 & 9 and i586/Linux, OK for the mainline?
This change causes massive failures at -m32/-m64 on x86_64-apple-darwin11
in the libitm testsuite...
FAIL: libitm.c/cancel.c (test for excess errors)
WARNING: libitm.c/cancel.c compilation failed to produce executable
FAIL: libitm.c/clone-1.c (test for excess errors)
WARNING: libitm.c/clone-1.c compilation failed to produce executable
FAIL: libitm.c/dropref-2.c (test for excess errors)
WARNING: libitm.c/dropref-2.c compilation failed to produce executable
FAIL: libitm.c/dropref.c (test for excess errors)
WARNING: libitm.c/dropref.c compilation failed to produce executable
FAIL: libitm.c/memcpy-1.c (test for excess errors)
WARNING: libitm.c/memcpy-1.c compilation failed to produce executable
FAIL: libitm.c/memset-1.c (test for excess errors)
WARNING: libitm.c/memset-1.c compilation failed to produce executable
FAIL: libitm.c/notx.c (test for excess errors)
WARNING: libitm.c/notx.c compilation failed to produce executable
FAIL: libitm.c/reentrant.c (test for excess errors)
WARNING: libitm.c/reentrant.c compilation failed to produce executable
FAIL: libitm.c/simple-1.c (test for excess errors)
WARNING: libitm.c/simple-1.c compilation failed to produce executable
FAIL: libitm.c/simple-2.c (test for excess errors)
WARNING: libitm.c/simple-2.c compilation failed to produce executable
FAIL: libitm.c/stackundo.c (test for excess errors)
WARNING: libitm.c/stackundo.c compilation failed to produce executable
FAIL: libitm.c/txrelease.c (test for excess errors)
WARNING: libitm.c/txrelease.c compilation failed to produce executable
Running
/sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120211/libitm/testsuite/libitm.c++/c++.exp
...
FAIL: libitm.c++/dropref.C (test for excess errors)
WARNING: libitm.c++/dropref.C compilation failed to produce executable
FAIL: libitm.c++/eh-1.C (test for excess errors)
WARNING: libitm.c++/eh-1.C compilation failed to produce executable
# of expected passes 1
# of unexpected failures 14
# of unsupported tests 1
These appear in the form...
Executing on host: /sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/gcc/
/sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120211/libitm/testsuite/libitm.c/cancel.c
-B/sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/x86_64-apple-darwin11.3.0/./libitm/
-I/sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/x86_64-apple-darwin11.3.0/./libitm
-I/sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120211/libitm/testsuite/..
-shared-libgcc -fmessage-length=0 -fgnu-tm -O2
-L/sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/x86_64-apple-darwin11.3.0/./libitm/.libs
-lm -m64 -o ./cancel.exe (timeout = 300)
Undefined symbols for architecture x86_64:
"__ITM_registerTMCloneTable", referenced from:
___doTMRegistrations in crttms.o
"__ITM_abortTransaction", referenced from:
_cancel1 in ccSkMYPk.o
transaction clone for cancel1 in ccSkMYPk.o
_main in ccSkMYPk.o
"__ITM_beginTransaction", referenced from:
_main in ccSkMYPk.o
"__ITM_WU4", referenced from:
_main in ccSkMYPk.o
"__ITM_commitTransaction", referenced from:
_main in ccSkMYPk.o
"__ITM_inTransaction", referenced from:
_main in ccSkMYPk.o
"__ITM_deregisterTMCloneTable", referenced from:
___doTMdeRegistrations in crttme.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
compiler exited with status 1
output is:
Undefined symbols for architecture x86_64:
"__ITM_registerTMCloneTable", referenced from:
___doTMRegistrations in crttms.o
"__ITM_abortTransaction", referenced from:
_cancel1 in ccSkMYPk.o
transaction clone for cancel1 in ccSkMYPk.o
_main in ccSkMYPk.o
"__ITM_beginTransaction", referenced from:
_main in ccSkMYPk.o
"__ITM_WU4", referenced from:
_main in ccSkMYPk.o
"__ITM_commitTransaction", referenced from:
_main in ccSkMYPk.o
"__ITM_inTransaction", referenced from:
_main in ccSkMYPk.o
"__ITM_deregisterTMCloneTable", referenced from:
___doTMdeRegistrations in crttme.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
FAIL: libitm.c/cancel.c (test for excess errors)
>
>
> 2012-02-11 Eric Botcazou <ebotca...@adacore.com>
>
> * gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
> (GTM_SELF_SPECS): Define if not already defined.
> (driver_self_specs): Add GTM_SELF_SPECS.
> * config/darwin.h (GTM_SELF_SPECS): Define.
> * config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
> * config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.
>
>
> 2012-02-11 Eric Botcazou <ebotca...@adacore.com>
>
> * configure.ac (link_itm): Fix comment.
> * configure: Regenerate.
> * testsuite/lib/libitm.exp: Do not pass -litm for the link.
>
>
> --
> Eric Botcazou
> Index: gcc/gcc.c
> ===================================================================
> --- gcc/gcc.c (revision 183864)
> +++ gcc/gcc.c (working copy)
> @@ -675,6 +675,7 @@ proper position among the other output f
> %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
> %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
> %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
> + %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
> %(mflib) " STACK_SPLIT_SPEC "\
> %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
> %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
> @@ -839,9 +840,14 @@ static const char *const multilib_defaul
> #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
> #endif
>
> +/* Likewise for -fgnu-tm. */
> +#ifndef GTM_SELF_SPECS
> +#define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
> +#endif
> +
> static const char *const driver_self_specs[] = {
> "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
> - DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS
> + DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS
> };
>
> #ifndef OPTION_DEFAULT_SPECS
> Index: gcc/config/i386/cygwin.h
> ===================================================================
> --- gcc/config/i386/cygwin.h (revision 183864)
> +++ gcc/config/i386/cygwin.h (working copy)
> @@ -126,6 +126,8 @@ along with GCC; see the file COPYING3.
> and the -pthread flag is not recognized. */
> #undef GOMP_SELF_SPECS
> #define GOMP_SELF_SPECS ""
> +#undef GTM_SELF_SPECS
> +#define GTM_SELF_SPECS ""
>
> /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
> #if DWARF2_UNWIND_INFO
> Index: gcc/config/i386/mingw32.h
> ===================================================================
> --- gcc/config/i386/mingw32.h (revision 183864)
> +++ gcc/config/i386/mingw32.h (working copy)
> @@ -187,6 +187,8 @@ do {
> \
> #undef GOMP_SELF_SPECS
> #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: " \
> "-mthreads -pthread}"
> +#undef GTM_SELF_SPECS
> +#define GTM_SELF_SPECS "%{fgnu-tm:-mthreads -pthread}"
>
> /* mingw32 atexit function is safe to use in shared libraries. Use it
> to register C++ static destructors. */
> Index: gcc/config/darwin.h
> ===================================================================
> --- gcc/config/darwin.h (revision 183864)
> +++ gcc/config/darwin.h (working copy)
> @@ -915,6 +915,8 @@ void add_framework_path (char *);
>
> #undef GOMP_SELF_SPECS
> #define GOMP_SELF_SPECS ""
> +#undef GTM_SELF_SPECS
> +#define GTM_SELF_SPECS ""
>
> /* Darwin disables section anchors by default.
> They should be enabled per arch where support exists in that arch. */
> Index: libitm/configure.ac
> ===================================================================
> --- libitm/configure.ac (revision 183864)
> +++ libitm/configure.ac (working copy)
> @@ -268,7 +268,7 @@ else
> fi
>
> # Set up the set of libraries that we need to link against for libitm.
> -# Note that the GOMP_SELF_SPEC in gcc.c will force -pthread for -fopenmp,
> +# Note that the GTM_SELF_SPECS in gcc.c will force -pthread for -fgnu-tm,
> # which will force linkage against -lpthread (or equivalent for the system).
> # That's not 100% ideal, but about the best we can do easily.
> if test $enable_shared = yes; then
> Index: libitm/testsuite/lib/libitm.exp
> ===================================================================
> --- libitm/testsuite/lib/libitm.exp (revision 183864)
> +++ libitm/testsuite/lib/libitm.exp (working copy)
> @@ -140,7 +140,6 @@ proc libitm_init { args } {
> lappend ALWAYS_CFLAGS "ldflags=-L${blddir}/.libs"
> }
> lappend ALWAYS_CFLAGS "additional_flags=-I${srcdir}/.."
> - lappend ALWAYS_CFLAGS "ldflags=-litm"
>
> # We use atomic operations in the testcases to validate results.
> if { ([istarget i?86-*-*] || [istarget x86_64-*-*])
