Kumar, Try adding -fno-strict-aliasing
Marc Howard > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Kumar Gala > Sent: Thursday, July 10, 2008 9:59 AM > To: u-boot-users@lists.sourceforge.net Users > Subject: [U-Boot-Users] HELP, trying to remove complier warnings > > I'm running with gcc-4.3 from fedora 9. I get the following warnings: > > dlmalloc.c: In function 'malloc_extend_top': > dlmalloc.c:1971: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:1999: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2029: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2031: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2042: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c: In function 'malloc': > dlmalloc.c:2245: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2245: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2253: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2258: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2263: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2318: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2327: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2329: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2344: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2356: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2360: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2362: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2363: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c: In function 'free': > dlmalloc.c:2431: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2444: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2483: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2483: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c: In function 'realloc': > dlmalloc.c:2594: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2599: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2604: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2605: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2637: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2646: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2647: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c: In function 'calloc': > dlmalloc.c:2896: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2897: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c: In function 'malloc_trim': > dlmalloc.c:2987: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:2997: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:3008: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:3012: error: dereferencing type-punned pointer will break > strict-aliasing rules > dlmalloc.c:3021: error: dereferencing type-punned pointer will break > strict-aliasing rules > > They all result from the bin_at macro in the file. I can't > seem to do > anything to the code to get rid of them. > > I see these both on x86 or ppc host builds: > > x86: > > gcc -g -Os -m32 -D__KERNEL__ -DTEXT_BASE=0x387c0000 > -I/local/home/ > galak/u-boot/include -fno-builtin -ffreestanding -nostdinc -isystem / > usr/lib/gcc/x86_64-redhat-linux/4.3.0/include -pipe -DCONFIG_I386 - > D__I386__ -march=i386 -Werror -Wall -Wstrict-prototypes -fno-stack- > protector -c -o dlmalloc.o dlmalloc.c > > ppc: > > gcc -g -Os -fPIC -ffixed-r14 -meabi -D__KERNEL__ - > DTEXT_BASE=0xeff80000 > -I/local/home/galak/git/u-boot-85xx/include -fno- > builtin -ffreestanding -nostdinc -isystem /usr/lib/gcc/ppc64-redhat- > linux/4.3.0/include -pipe -DCONFIG_PPC -D__powerpc__ > -DCONFIG_MPC85xx > -DCONFIG_E500 -ffixed-r2 -Wa,-me500 -msoft-float -mno-string > -mno-spe - > DCONFIG_E500=1 -DCONFIG_MPC85xx=1 -DCONFIG_PPC_P4080=1 -Wall > -Wstrict- > prototypes -fno-stack-protector -c -o dlmalloc.o dlmalloc.c > > - k > > -------------------------------------------------------------- > ----------- > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! > Studies have shown that voting for your favorite open source project, > along with a healthy diet, reduces your potential for chronic lameness > and boredom. Vote Now at http://www.sourceforge.net/community/cca08 > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users > ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
