Source: inform Version: 6.31.1+dfsg-1.1 Severity: normal Hi,
The build logs on 64-bit arches report warnings similar to these: > In file included from asm.c:9:0: > asm.c: In function 'assemblez_instruction': > header.h:618:36: warning: cast from pointer to integer of different size > [-Wpointer-to-int-cast] > #define subtract_pointers(p1,p2) (((int32) p1)-((int32) p2)) > ^ > asm.c:774:13: note: in expansion of macro 'subtract_pointers' > j = subtract_pointers( > ^ This is potentially bad for any 64-bit architecture. My guess is that it still works due to pure luck that glibc's allocator doesn't start at an address above 2GB. The code is also wrong for 32-bit since it could potentially result in signed integer overflow if addresses in the 2GB- 3GB range are used. After writing the above, I discovered that there is a constant 'UNIX64' which could be defined to at least improve the situation on 64-bit arches. Thanks, James
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