diff options
Diffstat (limited to 'mem.c')
| -rw-r--r-- | mem.c | 21 |
1 files changed, 11 insertions, 10 deletions
@@ -40,14 +40,15 @@ # endif #endif -#include <sys/user.h> /* for PAGE_SHIFT */ -#if defined(SH64) -# include <asm/page.h> /* for PAGE_SHIFT */ -#endif -#if !defined(PAGE_SHIFT) -# warning Failed to get PAGE_SHIFT, assuming 12 -# define PAGE_SHIFT 12 -#endif +static unsigned long +get_pagesize() +{ + static unsigned long pagesize; + + if (!pagesize) + pagesize = sysconf(_SC_PAGESIZE); + return pagesize; +} int sys_brk(struct tcb *tcp) @@ -295,7 +296,7 @@ sys_old_mmap_pgoff(struct tcb *tcp) for (i = 0; i < 5; i++) u_arg[i] = (unsigned long) narrow_arg[i]; offset = narrow_arg[5]; - offset <<= PAGE_SHIFT; + offset *= get_pagesize(); return print_mmap(tcp, u_arg, offset); } #endif @@ -324,7 +325,7 @@ sys_mmap_pgoff(struct tcb *tcp) /* Try test/mmap_offset_decode.c */ unsigned long long offset; offset = (unsigned long) tcp->u_arg[5]; - offset <<= PAGE_SHIFT; + offset *= get_pagesize(); return print_mmap(tcp, tcp->u_arg, offset); } |