File: [local] / src / usr.bin / nm / util.h (download)
Revision 1.1, Sat Oct 9 20:26:57 2004 UTC (19 years, 8 months ago) by mickey
Branch: MAIN
move out elf code into elf.c and generate 32 and 64 versions of it;
allow operation on size-mixed host-target as well as ensianess for
both a.out and elf (though a.out 64bit probably does not exist ;)
tested on hppa-sparc64-i386-vax intermixen
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/* $OpenBSD: util.h,v 1.1 2004/10/09 20:26:57 mickey Exp $ */
#define MMAP(ptr, len, prot, flags, fd, off) do { \
if ((ptr = mmap(NULL, len, prot, flags, fd, off)) == MAP_FAILED) { \
usemmap = 0; \
if (errno != EINVAL) \
warn("mmap"); \
else if ((ptr = malloc(len)) == NULL) { \
ptr = MAP_FAILED; \
warn("malloc"); \
} else if (pread(fd, ptr, len, off) != len) { \
free(ptr); \
ptr = MAP_FAILED; \
warn("pread"); \
} \
} \
} while (0)
#define MUNMAP(addr, len) do { \
if (usemmap) \
munmap(addr, len); \
else \
free(addr); \
} while (0)
extern int usemmap;