2009/11/15 Petr Baudis <pasky@xxxxxx>: > On Sat, Nov 14, 2009 at 09:38:00PM +0500, Марк Коренберг wrote: >> mmap64 in ubuntu is symlink to mmap2, but no actual definition of >> mmap64 in man page (!). > >> --- mmap2.2.was 2008-12-06 08:55:24.000000000 +0500 >> +++ mmap2.2 2009-11-11 12:27:26.000000000 +0500 >> @@ -33,8 +33,12 @@ >> .nf >> .B #include <sys/mman.h> >> .sp >> +.B /* Linux syscall */ >> .BI "void *mmap2(void *" addr ", size_t " length ", int " prot , >> .BI " int " flags ", int " fd ", off_t " pgoffset ); >> +.sp >> +.BI "void *mmap64(void *" addr ", size_t " length ", int " prot , >> +.BI " int " flags ", int " fd ", off64_t " byteoffset ); >> .fi >> .SH DESCRIPTION >> The > > Then there should be also some word in the manpage about what mmap64() > actually is? > > -- > Petr "Pasky" Baudis > A lot of people have my books on their bookshelves. > That's the problem, they need to read them. -- Don Knuth > Reading 'man mmap2' is what I want. I understood all I need. I can't build correct (in English) sentences, describing mmap64, but I want this be specified: 1. mmap2 now can use offsets with 32+12=44 bits long, and not 64 ! if bigger offset specified, results are undefined. 2. file 'fd' should be opened with O_LARGEFILE for offsets bigger than 4GB? 2GB? 3. mmap64 is libc wrapper around mmap2 syscall. 4. Dont't know, but special #define should be used in order to use 64-bit-offset functions. -- Segmentation fault -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
