diff options
Diffstat (limited to 'arch/um/os-Linux/elf_aux.c')
| -rw-r--r-- | arch/um/os-Linux/elf_aux.c | 37 |
1 files changed, 6 insertions, 31 deletions
diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c index 0a0f91cf4d6d..72f416edf252 100644 --- a/arch/um/os-Linux/elf_aux.c +++ b/arch/um/os-Linux/elf_aux.c @@ -14,37 +14,26 @@ #include <elf_user.h> #include <mem_user.h> #include "internal.h" +#include <linux/swab.h> +#if __BITS_PER_LONG == 64 +typedef Elf64_auxv_t elf_auxv_t; +#else typedef Elf32_auxv_t elf_auxv_t; +#endif /* These are initialized very early in boot and never changed */ char * elf_aux_platform; -extern long elf_aux_hwcap; -unsigned long vsyscall_ehdr; -unsigned long vsyscall_end; -unsigned long __kernel_vsyscall; +long elf_aux_hwcap; __init void scan_elf_aux( char **envp) { - long page_size = 0; elf_auxv_t * auxv; while ( *envp++ != NULL) ; for ( auxv = (elf_auxv_t *)envp; auxv->a_type != AT_NULL; auxv++) { switch ( auxv->a_type ) { - case AT_SYSINFO: - __kernel_vsyscall = auxv->a_un.a_val; - /* See if the page is under TASK_SIZE */ - if (__kernel_vsyscall < (unsigned long) envp) - __kernel_vsyscall = 0; - break; - case AT_SYSINFO_EHDR: - vsyscall_ehdr = auxv->a_un.a_val; - /* See if the page is under TASK_SIZE */ - if (vsyscall_ehdr < (unsigned long) envp) - vsyscall_ehdr = 0; - break; case AT_HWCAP: elf_aux_hwcap = auxv->a_un.a_val; break; @@ -56,20 +45,6 @@ __init void scan_elf_aux( char **envp) elf_aux_platform = (char *) (long) auxv->a_un.a_val; break; - case AT_PAGESZ: - page_size = auxv->a_un.a_val; - break; } } - if ( ! __kernel_vsyscall || ! vsyscall_ehdr || - ! elf_aux_hwcap || ! elf_aux_platform || - ! page_size || (vsyscall_ehdr % page_size) ) { - __kernel_vsyscall = 0; - vsyscall_ehdr = 0; - elf_aux_hwcap = 0; - elf_aux_platform = "i586"; - } - else { - vsyscall_end = vsyscall_ehdr + page_size; - } } |