diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2014-12-23 20:38:21 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2014-12-23 20:38:21 +0000 |
| commit | 275d54b5f4243f32be7f2951d1bddced5c5aaf0d (patch) | |
| tree | 832ff80a63f05cd162dc33b4e9031c5807003caf /lib/csu/boot.h | |
| parent | 13b37cf142cde10828a0240f4b3d4cb4afaa240b (diff) | |
Use the page size passed by the kernel in the Auxilliary Vector to handle
architectures with variable page size.
Diffstat (limited to 'lib/csu/boot.h')
| -rw-r--r-- | lib/csu/boot.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/lib/csu/boot.h b/lib/csu/boot.h index 231f4c3c533..a1aab4cdf99 100644 --- a/lib/csu/boot.h +++ b/lib/csu/boot.h @@ -1,4 +1,4 @@ -/* $OpenBSD: boot.h,v 1.3 2014/12/23 16:45:04 kettenis Exp $ */ +/* $OpenBSD: boot.h,v 1.4 2014/12/23 20:38:20 kettenis Exp $ */ /* * Copyright (c) 1998 Per Fogelstrom, Opsycon AB @@ -73,6 +73,7 @@ _dl_boot_bind(const long sp, long *dl_data, Elf_Dyn *dynamicp) Elf_Dyn *dynp; Elf_Addr start; size_t size; + int pagesize; int n, argc; char **argv, **envp; long loff; @@ -261,14 +262,19 @@ _dl_boot_bind(const long sp, long *dl_data, Elf_Dyn *dynamicp) * them read-only. */ + if (dl_data[AUX_pagesz] == 0) + pagesize = dl_data[AUX_pagesz]; + else + pagesize = 4096; + #if defined(__sparc64__) - start = ELF_TRUNC((Elf_Addr)__plt_start, PAGE_SIZE); - size = ELF_ROUND((Elf_Addr)__plt_end - start, PAGE_SIZE); + start = ELF_TRUNC((Elf_Addr)__plt_start, pagesize); + size = ELF_ROUND((Elf_Addr)__plt_end - start, pagesize); mprotect((void *)start, size, PROT_READ); #endif - start = ELF_TRUNC((Elf_Addr)__got_start, PAGE_SIZE); - size = ELF_ROUND((Elf_Addr)__got_end - start, PAGE_SIZE); + start = ELF_TRUNC((Elf_Addr)__got_start, pagesize); + size = ELF_ROUND((Elf_Addr)__got_end - start, pagesize); mprotect((void *)start, size, PROT_READ); } #endif /* RCRT0 */ |