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loader: Define our own auxv structure.

This commit is contained in:
Alexandre Julliard 2013-02-13 16:26:39 +01:00
parent fc7e81be15
commit 3b8ab28c40
1 changed files with 16 additions and 8 deletions
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24
loader/preloader.c
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@ -158,6 +158,14 @@ struct wld_link_map {
ElfW(Addr) l_interp;
};
struct wld_auxv
{
ElfW(Addr) a_type;
union
{
ElfW(Addr) a_val;
} a_un;
};
/*
* The __bb_init_func is an empty function only called when file is
@ -540,7 +548,7 @@ static __attribute__((noreturn,format(printf,1,2))) void fatal_error(const char
* Dump interesting bits of the ELF auxv_t structure that is passed
* as the 4th parameter to the _start function
*/
static void dump_auxiliary( ElfW(auxv_t) *av )
static void dump_auxiliary( struct wld_auxv *av )
{
#define NAME(at) { at, #at }
static const struct { int val; const char *name; } names[] =
@ -581,8 +589,8 @@ static void dump_auxiliary( ElfW(auxv_t) *av )
*
* Set the new auxiliary values
*/
static void set_auxiliary_values( ElfW(auxv_t) *av, const ElfW(auxv_t) *new_av,
const ElfW(auxv_t) *delete_av, void **stack )
static void set_auxiliary_values( struct wld_auxv *av, const struct wld_auxv *new_av,
const struct wld_auxv *delete_av, void **stack )
{
int i, j, av_count = 0, new_count = 0, delete_count = 0;
char *src, *dst;
@ -624,7 +632,7 @@ static void set_auxiliary_values( ElfW(auxv_t) *av, const ElfW(auxv_t) *new_av,
for (i = len - 1; i >= 0; i--) dst[i] = src[i];
}
*stack = dst;
av = (ElfW(auxv_t) *)((char *)av + (dst - src));
av = (struct wld_auxv *)((char *)av + (dst - src));
/* now set the values */
for (j = 0; new_av[j].a_type != AT_NULL; j++)
@ -650,7 +658,7 @@ static void set_auxiliary_values( ElfW(auxv_t) *av, const ElfW(auxv_t) *new_av,
*
* Get a field of the auxiliary structure
*/
static int get_auxiliary( ElfW(auxv_t) *av, int type, int def_val )
static int get_auxiliary( struct wld_auxv *av, int type, int def_val )
{
for ( ; av->a_type != AT_NULL; av++)
if( av->a_type == type ) return av->a_un.a_val;
@ -1110,7 +1118,7 @@ static void remove_preload_range( int i )
*
* Check if address of the given aux value is in one of the reserved ranges
*/
static int is_in_preload_range( const ElfW(auxv_t) *av, int type )
static int is_in_preload_range( const struct wld_auxv *av, int type )
{
while (av->a_type != AT_NULL)
{
@ -1153,7 +1161,7 @@ void* wld_start( void **stack )
long i, *pargc;
char **argv, **p;
char *interp, *reserve = NULL;
ElfW(auxv_t) new_av[12], delete_av[3], *av;
struct wld_auxv new_av[12], delete_av[3], *av;
struct wld_link_map main_binary_map, ld_so_map;
struct wine_preload_info **wine_main_preload_info;
@ -1172,7 +1180,7 @@ void* wld_start( void **stack )
p++;
}
av = (ElfW(auxv_t)*) (p+1);
av = (struct wld_auxv *)(p+1);
page_size = get_auxiliary( av, AT_PAGESZ, 4096 );
page_mask = page_size - 1;