I'm a little confused by the current usage of getsectdatafromheader_64 in
unwind-dw2-fde-darwin.c on Darwin PPC. I see a build warning of...
/sw/src/fink.build/gcc4-4.1.9999-20060928/darwin_objdir/./gcc/xgcc
-B/sw/src/fink.build/gcc4-4.1.9999-20060928/darwin_objdir/./gcc/
-B/sw/lib/gcc4/powerpc-apple-
darwin8/bin/ -B/sw/lib/gcc4/powerpc-apple-darwin8/lib/ -isystem
/sw/lib/gcc4/powerpc-apple-darwin8/include -isystem
/sw/lib/gcc4/powerpc-apple-darwin8/sys-includ
e -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -isystem ./include
-Wa,-force_cpusubtyp
e_ALL -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I.
-I. -I../../gcc-4.2-20060928/gcc -I../../gcc-4.2-20060928/gcc/.
-I../../gcc-4.2-200
60928/gcc/../include -I./../intl -I../../gcc-4.2-20060928/gcc/../libcpp/include
-I/sw/include -I../../gcc-4.2-20060928/gcc/../libdecnumber -I../libdecnumber
-m6
4 -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c
../../gcc-4.2-20060928/gcc/unwind-dw2-fde-darwin.c -o
libgcc/ppc64/unwind-dw2-fde-darwin.o
../../gcc-4.2-20060928/gcc/unwind-dw2-fde-darwin.c: In function
'examine_objects':
../../gcc-4.2-20060928/gcc/unwind-dw2-fde-darwin.c:167: warning: passing
argument 1 of 'getsectdatafromheader_64' from incompatible pointer type
which leads to the code...
/* For ppc only check whether or not we have __DATA eh frames. */
#ifdef __ppc__
fde = getsectdatafromheader (image->mh, "__DATA", "__eh_frame", &sz);
#endif
if (fde == NULL)
{
#if __LP64__
fde = getsectdatafromheader_64 ((struct mach_header_64 *) image->mh,
"__TEXT", "__eh_frame", &sz);
#else
fde = getsectdatafromheader (image->mh, "__TEXT",
"__eh_frame", &sz);
#endif
My first question is why is the external declaration...
extern char *getsectdatafromheader_64 (struct mach_header*, const char*
...rather than...
extern char *getsectdatafromheader_64 (struct mach_header_64*, const char*
Also, why isn't the first getsectdatafromheader call wrappered with '#if
__LP64__'
like the second?
Jack
