[sdcc-devel] SDCC-3.2.0, 8051 port, problem with inline function.

[Krishnendu C. <kri...@gm...>]

Hi folks,

I am facing some problem using inline functions on mcs51 port. Consider the
following code:


#include <string.h>

int n[10];
inline int *address (void) { return &n[0]; }
inline int size (void) { return sizeof (n); }

void main (void)
{
    memset (address(), 0, size());
}


When it is compiled with --std-c99 switch, it generates the following error

-:0: error 20: Undefined identifier '__00010001'
main.c:7: error 47: indirections to different types assignment
from type 'int near* fixed'
to type 'int fixed'
-:0: error 20: Undefined identifier '__00010001'
-:0: warning 127: non-pointer type cast to generic pointer
from type 'int fixed'
to type 'void generic* fixed'


The error prevails with --std-sdcc99, --model-large, and --stack-auto
options.
Another observation is, the inline functions create problem only when they
return pointer.
However, if the returned value is stored in a local variable before being
used, it compiles fine. For example

void main (void)
{
    int *addr = address;
    memset (addr, 0, size());
}


I am using sdcc 3.2.0, compiled with gcc on Fedora 15. The gcc -v produces

Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.6.3/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info
--with-bugurl=http://bugzilla.redhat.com/bugzilla--enable-bootstrap
--enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-linker-build-id
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto
--enable-plugin --enable-java-awt=gtk --disable-dssi
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-ppl --with-cloog --with-tune=generic --with-arch_32=i686
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.6.3 20120306 (Red Hat 4.6.3-2) (GCC)


Is --std-c99 and inline implementation still pending, or am I missing some
point?

Thanks,
Krish