On Mon, 27 Jun 2022, Sergei Trofimovich wrote: > From: Sergei Trofimovich <siarh...@google.com> > > On musl <pthread.h> uses calloc() (via <sched.h>). jit/ includes > it directly and exposes use of poisoned calloc(): > > /build/build/./prev-gcc/xg++ ... > ../../gcc-13-20220626/gcc/jit/jit-playback.cc > make[3]: *** [Makefile:1143: jit/libgccjit.o] Error 1 > make[3]: *** Waiting for unfinished jobs.... > In file included from /<<NIX>>/musl-1.2.3-dev/include/pthread.h:30, > from ../../gcc-13-20220626/gcc/jit/jit-playback.cc:44: > /<<NIX>>/musl-1.2.3-dev/include/sched.h:84:7: error: attempt to use > poisoned "calloc" > 84 | void *calloc(size_t, size_t); > | ^ > /<<NIX>>/musl-1.2.3-dev/include/sched.h:124:36: error: attempt to use > poisoned "calloc" > 124 | #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) > | ^ > > The change moves sys-specific header before "system.h" inclusion > to evade poisoning. > > gcc/jit/ > > PR c++/106102 > * jit-playback.cc: Include <pthread.h> before "system.h" to avoid > calloc() > poisoning. > * jit-recording.cc: Ditto. > * libgccjit.cc: Ditto. > --- > gcc/jit/jit-playback.cc | 5 +++-- > gcc/jit/jit-recording.cc | 4 +++- > gcc/jit/libgccjit.cc | 4 +++- > 3 files changed, 9 insertions(+), 4 deletions(-) > > diff --git a/gcc/jit/jit-playback.cc b/gcc/jit/jit-playback.cc > index 6be6bdf8dea..4ab7b59cab9 100644 > --- a/gcc/jit/jit-playback.cc > +++ b/gcc/jit/jit-playback.cc > @@ -19,6 +19,9 @@ along with GCC; see the file COPYING3. If not see > <http://www.gnu.org/licenses/>. */ > > #include "config.h" > +/* <pthread.h> has to go before "system.h" as it pull in to-be-poisoned > + symbols on musl like calloc(). */ > +#include <pthread.h>
there are probably targets where there need to be some #includes before including pthread.h which means it would be best to include pthread.h from within system.h (conditional, of course, just add a INCLUDE_PTHREAD_H preprocessor guard). Richard. > #include "system.h" > #include "coretypes.h" > #include "target.h" > @@ -41,8 +44,6 @@ along with GCC; see the file COPYING3. If not see > #include "diagnostic.h" > #include "stmt.h" > > -#include <pthread.h> > - > #include "jit-playback.h" > #include "jit-result.h" > #include "jit-builtins.h" > diff --git a/gcc/jit/jit-recording.cc b/gcc/jit/jit-recording.cc > index 697dee66e73..9505ed3b279 100644 > --- a/gcc/jit/jit-recording.cc > +++ b/gcc/jit/jit-recording.cc > @@ -19,13 +19,15 @@ along with GCC; see the file COPYING3. If not see > <http://www.gnu.org/licenses/>. */ > > #include "config.h" > +/* <pthread.h> has to go before "system.h" as it pull in to-be-poisoned > + symbols on musl like calloc(). */ > +#include <pthread.h> > #include "system.h" > #include "coretypes.h" > #include "tm.h" > #include "pretty-print.h" > #include "toplev.h" > > -#include <pthread.h> > > #include "jit-builtins.h" > #include "jit-recording.h" > diff --git a/gcc/jit/libgccjit.cc b/gcc/jit/libgccjit.cc > index 0e76097b4ba..6a0ac8aaba2 100644 > --- a/gcc/jit/libgccjit.cc > +++ b/gcc/jit/libgccjit.cc > @@ -19,12 +19,14 @@ along with GCC; see the file COPYING3. If not see > <http://www.gnu.org/licenses/>. */ > > #include "config.h" > +/* <pthread.h> has to go before "system.h" as it pull in to-be-poisoned > + symbols on musl like calloc(). */ > +#include <pthread.h> > #include "system.h" > #include "coretypes.h" > #include "timevar.h" > #include "typed-splay-tree.h" > #include "cppbuiltin.h" > -#include <pthread.h> > > #include "libgccjit.h" > #include "jit-recording.h" > -- Richard Biener <rguent...@suse.de> SUSE Software Solutions Germany GmbH, Frankenstra
