Method fcall

document/en/ps5/rop.js:150–156

* helper function to add a standard sysv call to the chain.

(rip, rdi, rsi, rdx, rcx, r8, r9)

     * helper function to add a standard sysv call to the chain.
     */
    fcall(rip, rdi, rsi, rdx, rcx, r8, r9) {
        this.push_sysv(rdi, rsi, rdx, rcx, r8, r9);
        if (this.stack_entry_point.add32(this.count * 0x8).low & 0x8) {
            this.push(gadgets["ret"]);
        }
        this.push(rip);
    }

    /**
     * returns the current stack pointer.