newlispfanclub.alh.net

I get a lot of 'dereferencing type-punned pointer' warnings.

$ make -f makefile_sunos

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS newlisp.c

newlisp.c: In function `p_apply':

newlisp.c:4295: warning: dereferencing type-punned pointer will break strict-aliasing rules

newlisp.c: In function `implicitNrestSlice':

newlisp.c:4967: warning: dereferencing type-punned pointer will break strict-aliasing rules

newlisp.c:4980: warning: dereferencing type-punned pointer will break strict-aliasing rules

newlisp.c: In function `p_mainArgs':

newlisp.c:6657: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-symbol.c

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-math.c

nl-math.c: In function `randomDist':

nl-math.c:1137: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-math.c: In function `p_series':

nl-math.c:1642: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-list.c

nl-list.c: In function `explodeList':

nl-list.c:145: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c: In function `p_lookup':

nl-list.c:579: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c: In function `implicitIndexList':

nl-list.c:1105: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c:1112: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c:1142: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c: In function `implicitIndexArray':

nl-list.c:2007: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c:2014: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-list.c:2028: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-liststr.c

nl-liststr.c: In function `p_chop':

nl-liststr.c:315: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_push':

nl-liststr.c:432: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:437: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:497: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_pop':

nl-liststr.c:566: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:571: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:592: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `popString':

nl-liststr.c:627: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:630: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `pushOnString':

nl-liststr.c:673: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_select':

nl-liststr.c:756: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:760: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:803: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:807: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_slice':

nl-liststr.c:837: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c:839: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_find':

nl-liststr.c:995: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_dup':

nl-liststr.c:1284: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-liststr.c: In function `p_rotate':

nl-liststr.c:1572: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-string.c

nl-string.c: In function `implicitIndexString':

nl-string.c:183: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-string.c: In function `p_char':

nl-string.c:284: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-string.c: In function `p_explode':

nl-string.c:375: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-string.c: In function `p_pack':

nl-string.c:1654: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-filesys.c

nl-filesys.c: In function `p_readBuffer':

nl-filesys.c:256: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c: In function `writeBuffer':

nl-filesys.c:494: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c: In function `p_share':

nl-filesys.c:1881: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:1889: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c: In function `p_date':

nl-filesys.c:2214: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c: In function `p_now':

nl-filesys.c:2389: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c: In function `p_dateList':

nl-filesys.c:2462: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:2463: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c: In function `p_dateValue':

nl-filesys.c:2499: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:2500: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:2501: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:2508: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:2509: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-filesys.c:2510: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-sock.c

nl-sock.c: In function `p_netReceive':

nl-sock.c:877: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-sock.c: In function `p_netReceiveUDP':

nl-sock.c:1020: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-sock.c: In function `p_netReceiveFrom':

nl-sock.c:1052: warning: dereferencing type-punned pointer will break strict-aliasing rules

nl-sock.c: In function `p_netSend':

nl-sock.c:1072: warning: dereferencing type-punned pointer will break strict-aliasing rules

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-import.c

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-xml.c

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-web.c

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-matrix.c

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS nl-debug.c

gcc -m32 -Wall -pedantic -Wno-uninitialized -Wno-long-long -c -O2 -DSUNOS pcre.c

gcc newlisp.o nl-symbol.o nl-math.o nl-list.o nl-liststr.o nl-string.o nl-filesys.o nl-sock.o nl-import.o nl-xml.o nl-web.o nl-matrix.o nl-debug.o pcre.o -m32 -lm -ldl -lrt -lsocket -lnsl -o newlisp





$ gcc -v

Reading specs from /usr/sfw/lib/gcc/sparc-sun-solaris2.10/3.4.3/specs

Configured with: /sfw10/builds/build/sfw10-patch/usr/src/cmd/gcc/gcc-3.4.3/configure --prefix=/usr/sfw --with-as=/usr/ccs/bin/as --without-gnu-as --with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-languages=c,c++ --enable-shared

Thread model: posix

gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath)

Newer gcc versions (4.x +) don't worry about this (at least on Mac OSX and Windows).

ILP32 assumes that int, long, char *, void * all have the same length of 32-bit. The code frequently casts one to the other, but they are all the same size and no aliasing problems will occur. Newer gcc versions recognize this and don't complain.

You could add the '-fno-strict-aliasing' or -Wno-strict-aliasing to the CFLAGS line in the makfile_sunos, like makefile_opensolaris and many other makefiles in the distribution do it too.

In any case make sure that 'make testall' runs fine.

Also make sure that until/types.c compiled with -m32 produces the following output: