Files
intel-linux-sgx/sdk/cpprt/linux/libunwind/src/mi/_ReadSLEB.c
T
Angie Chinchilla 9441de4c38 Initial release of Intel SGX for Linux.
This release is used in conjunction with the linux-sgx-driver Intial release:
https://github.com/01org/linux-sgx-driver
commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7

Intel-id: 33399

Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
2016-06-23 18:51:53 -04:00

26 lines
465 B
C

#include <libunwind.h>
unw_word_t
_ReadSLEB (unsigned char **dpp)
{
unsigned shift = 0;
unw_word_t byte, result = 0;
unsigned char *bp = *dpp;
while (1)
{
byte = *bp++;
result |= (byte & 0x7f) << shift;
shift += 7;
if ((byte & 0x80) == 0)
break;
}
if (shift < 8 * sizeof (unw_word_t) && (byte & 0x40) != 0)
/* sign-extend negative value */
result |= ((unw_word_t) -1) << shift;
*dpp = bp;
return result;
}