GCC: Warnings in pre-1.9.0 release

[ax3l]

the current master version as of 649ec37 still contains a few warnings that might need a fix before the next release.

Environment

Compiler: gcc 4.8.2 (on Titan/ORNL)
MPICH: 3.1.1
relevant modules (extract): craype/2.2.1 cray-mpich/7.0.4 craype-interlagos gcc/4.8.2 PrgEnv-gnu/5.2.40 mxml/2.9
configure:

LDFLAGS="-fPIC -pthread" CFLAGS="-fPIC -g -O2" CXXFLAGS="-fPIC -g -O2" \
  ./configure --prefix=$MEMBERWORK/$proj/lib/adios-pre1.9.0 --with-zlib \
    --with-mpi=$MPICH_DIR --enable-static --enable-shared \
    --with-mxml=$MXML_DIR --without-dataspaces

MPI-Related

write/adios_mpi_amr.c: In function 'adios_mpi_amr_ag_close':
write/adios_mpi_amr.c: In function 'adios_mpi_amr_ag_close':
write/adios_mpi_amr.c:2954:29: warning: passing argument 5 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
                             ,0, md->g_comm1);
                             ^
In file included from ./public/adios_mpi.h:16:0,
                 from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
 int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
     ^
write/adios_mpi_amr.c:2954:29: warning: passing argument 5 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
                             ,0, md->g_comm1);
                             ^
In file included from ./public/adios_mpi.h:16:0,
                 from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
 int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
     ^
write/adios_mpi_amr.c:2954:29: warning: passing argument 6 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
                             ,0, md->g_comm1);
                             ^
In file included from ./public/adios_mpi.h:16:0,
                 from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
 int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
     ^
write/adios_mpi_amr.c:2954:29: warning: passing argument 6 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
                             ,0, md->g_comm1);
                             ^
In file included from ./public/adios_mpi.h:16:0,
                 from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
 int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
     ^
write/adios_mpi_amr.c: In function 'adios_mpi_amr_ag_close':
write/adios_mpi_amr.c:2954:29: warning: passing argument 5 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
                             ,0, md->g_comm1);
                             ^
In file included from ./public/adios_mpi.h:16:0,
                 from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
 int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
     ^
write/adios_mpi_amr.c:2954:29: warning: passing argument 6 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
                             ,0, md->g_comm1);
                             ^
In file included from ./public/adios_mpi.h:16:0,
                 from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
 int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf

skeldump

In file included from skeldump.c:38:0:
skeldump.h:23:0: warning: "strndup" redefined [enabled by default]
 #  define strndup(str,len) strdup(str)
 ^
In file included from /usr/include/string.h:635:0,
                 from skeldump.c:26:
/usr/include/bits/string2.h:1344:0: note: this is the location of the previous definition
 #   define strndup(s, n) __strndup (s, n)
 ^
skeldump.c:107:5: warning: initialization from incompatible pointer type [enabled by default]
     {"hidden_attrs",         no_argument,          &hidden_attrs,    true}, 
     ^
skeldump.c:107:5: warning: (near initialization for 'options[5].flag') [enabled by default]

bpls

In file included from bpls.c:34:0:
bpls.h:16:0: warning: "strndup" redefined [enabled by default]
 #  define strndup(str,len) strdup(str)
 ^
In file included from /usr/include/string.h:635:0,
                 from bpls.c:23:
/usr/include/bits/string2.h:1344:0: note: this is the location of the previous definition
 #   define strndup(s, n) __strndup (s, n)
 ^

[pnorbert]

This warning is intentionally left there to remind us that that particular
piece does not work if a block of data is > 2GB.
It won't be fixed before the release, probably that piece is never executed
in practice.

On Mon, Jul 6, 2015 at 9:04 AM, Axel Huebl notifications@github.com wrote:

Compiler: gcc 4.8.2 (on Titan/ORNL)

the current master version as of ... still contains a few warnings that
might need a fix before the next release:

write/adios_mpi_amr.c: In function 'adios_mpi_amr_ag_close':
write/adios_mpi_amr.c: In function 'adios_mpi_amr_ag_close':
write/adios_mpi_amr.c:2954:29: warning: passing argument 5 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
,0, md->g_comm1);
^
In file included from ./public/adios_mpi.h:16:0,
from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
^
write/adios_mpi_amr.c:2954:29: warning: passing argument 5 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
,0, md->g_comm1);
^
In file included from ./public/adios_mpi.h:16:0,
from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
^
write/adios_mpi_amr.c:2954:29: warning: passing argument 6 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
,0, md->g_comm1);
^
In file included from ./public/adios_mpi.h:16:0,
from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
^
write/adios_mpi_amr.c:2954:29: warning: passing argument 6 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
,0, md->g_comm1);
^
In file included from ./public/adios_mpi.h:16:0,
from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
^
write/adios_mpi_amr.c: In function 'adios_mpi_amr_ag_close':
write/adios_mpi_amr.c:2954:29: warning: passing argument 5 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
,0, md->g_comm1);
^
In file included from ./public/adios_mpi.h:16:0,
from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
^
write/adios_mpi_amr.c:2954:29: warning: passing argument 6 of 'MPI_Gatherv' from incompatible pointer type [enabled by default]
,0, md->g_comm1);
^
In file included from ./public/adios_mpi.h:16:0,
from write/adios_mpi_amr.c:24:
/opt/cray/mpt/7.0.4/gni/mpich2-gnu/48/include/mpi.h:972:5: note: expected 'const int *' but argument is of type 'uint64_t *'
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf

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#51.

[ax3l]

all right, thank you for the info!

I added two additional small warnings (redefines in macros) with an online edit for bpls and skeldump (redefine of strndup).