#include "architecture.h"

void architecture_info(struct archinfo *ai, const struct iovec *regs) {
    user_regs_t *data = regs->iov_base;

    /* Not every platform supports 64-bits, but those that do are generally
     * backward compatible with 32-bits, so this is the one we explicitly
     * compare with. */
    if (regs->iov_len == sizeof(struct user_regs_32)) {
        ai->progmctr = data->PROGMCTR_32;
        ai->stackptr = data->STACKPTR_32;
        ai->bp_insn = BREAKPOINT_INSN_32;
        ai->bp_mask = BREAKPOINT_MASK_32;
        ai->bp_adjust = BREAKPOINT_ADJS_32;
        ai->cs_arch = CAPSTONE_ARCH_32;
        ai->cs_mode = CAPSTONE_MODE_32;
        ai->cs_call = CAPSTONE_CALL_32;
        ai->wordsize = WORDSIZE_32;
    } else {
        ai->progmctr = data->PROGMCTR_64;
        ai->stackptr = data->STACKPTR_64;
        ai->bp_insn = BREAKPOINT_INSN_64;
        ai->bp_mask = BREAKPOINT_MASK_64;
        ai->bp_adjust = BREAKPOINT_ADJS_64;
        ai->cs_arch = CAPSTONE_ARCH_64;
        ai->cs_mode = CAPSTONE_MODE_64;
        ai->cs_call = CAPSTONE_CALL_64;
        ai->wordsize = WORDSIZE_64;
    }
}