Dmitry V. Levin
b172a94d02
* defs.h (umove_ulong_array_or_printaddr): New prototype. * util.c (umove_ulong_array_or_printaddr): New function. * desc.c (sys_pselect6): Use it instead of open-coding a proxy struct parser for different personalities. * io.c (tprint_iov_upto): Use it instead of open-coding a struct iovec parser for different personalities. * kexec.c (print_kexec_segments): Use it instead of open-coding a struct kexec_segment parser for different personalities. (print_seg): Pass arguments using an array.
82 lines
1.4 KiB
C
82 lines
1.4 KiB
C
#include "defs.h"
|
|
|
|
#include "xlat/kexec_load_flags.h"
|
|
#include "xlat/kexec_arch_values.h"
|
|
|
|
#ifndef KEXEC_ARCH_MASK
|
|
# define KEXEC_ARCH_MASK 0xffff0000
|
|
#endif
|
|
#ifndef KEXEC_SEGMENT_MAX
|
|
# define KEXEC_SEGMENT_MAX 16
|
|
#endif
|
|
|
|
static void
|
|
print_seg(const unsigned long *seg)
|
|
{
|
|
tprints("{");
|
|
printaddr(seg[0]);
|
|
tprintf(", %lu, ", seg[1]);
|
|
printaddr(seg[2]);
|
|
tprintf(", %lu}", seg[3]);
|
|
}
|
|
|
|
static void
|
|
print_kexec_segments(struct tcb *tcp, const unsigned long addr,
|
|
const unsigned long len)
|
|
{
|
|
unsigned long seg[4];
|
|
const size_t sizeof_seg = ARRAY_SIZE(seg) * current_wordsize;
|
|
unsigned int i;
|
|
|
|
if (!len) {
|
|
tprints("[]");
|
|
return;
|
|
}
|
|
|
|
if (len > KEXEC_SEGMENT_MAX) {
|
|
printaddr(addr);
|
|
return;
|
|
}
|
|
|
|
if (umove_ulong_array_or_printaddr(tcp, addr, seg, ARRAY_SIZE(seg)))
|
|
return;
|
|
|
|
tprints("[");
|
|
print_seg(seg);
|
|
|
|
for (i = 1; i < len; ++i) {
|
|
tprints(", ");
|
|
if (umove_ulong_array_or_printaddr(tcp,
|
|
addr + i * sizeof_seg,
|
|
seg, ARRAY_SIZE(seg)))
|
|
break;
|
|
print_seg(seg);
|
|
}
|
|
|
|
tprints("]");
|
|
}
|
|
|
|
SYS_FUNC(kexec_load)
|
|
{
|
|
unsigned long n;
|
|
|
|
/* entry, nr_segments */
|
|
printaddr(tcp->u_arg[0]);
|
|
tprintf(", %lu, ", tcp->u_arg[1]);
|
|
|
|
/* segments */
|
|
print_kexec_segments(tcp, tcp->u_arg[2], tcp->u_arg[1]);
|
|
tprints(", ");
|
|
|
|
/* flags */
|
|
n = tcp->u_arg[3];
|
|
printxval(kexec_arch_values, n & KEXEC_ARCH_MASK, "KEXEC_ARCH_???");
|
|
n &= ~KEXEC_ARCH_MASK;
|
|
if (n) {
|
|
tprints("|");
|
|
printflags(kexec_load_flags, n, "KEXEC_???");
|
|
}
|
|
|
|
return RVAL_DECODED;
|
|
}
|