Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> writes: > Hi all, > > Whilst building the latest git master on my G4 I noticed the following shift > overflow > warnings in the build log for arch/powerpc/boot/addnote.c: > > > arch/powerpc/boot/addnote.c: In function ‘main’: > arch/powerpc/boot/addnote.c:75:47: warning: right shift count >= width of type > [-Wshift-count-overflow] > #define PUT_64BE(off, v)((PUT_32BE((off), (v) >> 32L), \ > ^~ > arch/powerpc/boot/addnote.c:72:39: note: in definition of macro ‘PUT_16BE’ > #define PUT_16BE(off, v)(buf[off] = ((v) >> 8) & 0xff, \ > ^ > arch/powerpc/boot/addnote.c:75:27: note: in expansion of macro ‘PUT_32BE’ > #define PUT_64BE(off, v)((PUT_32BE((off), (v) >> 32L), \ > ^~~~~~~~ > arch/powerpc/boot/addnote.c:94:50: note: in expansion of macro ‘PUT_64BE’ > #define PUT_64(off, v) (e_data == ELFDATA2MSB ? PUT_64BE(off, v) : \ > ^~~~~~~~ > arch/powerpc/boot/addnote.c:183:3: note: in expansion of macro ‘PUT_64’ > PUT_64(ph + PH_OFFSET, ns); > ^~~~~~
I don't think there's any situation in which a 32-bit addnote will be run against a 64-bit ELF is there? So I don't think there's an actual bug, but it would be good if we could make the warning go away. cheers
