/* * Raw syscalls. * * Copyright (c) 2018-2021 The strace developers. * All rights reserved. * * SPDX-License-Identifier: LGPL-2.1-or-later */ #ifndef STRACE_RAW_SYSCALL_H # define STRACE_RAW_SYSCALL_H # include "kernel_types.h" static inline kernel_ulong_t raw_syscall_0(const kernel_ulong_t nr, kernel_ulong_t *err) { *err = 0; register kernel_ulong_t r28 __asm__("r28"); __asm__ __volatile__("copy %%r19, %%r4\n\t" "ble 0x100(%%sr2, %%r0)\n\t" "copy %1, %%r20\n\t" "copy %%r4, %%r19\n\t" : "=r"(r28) : "r"(nr) : "memory", "%r1", "%r2", "%r4", "%r21", "%r22", "%r23", "%r24", "%r25", "%r26" ); return r28; } # define raw_syscall_0 raw_syscall_0 #endif /* !STRACE_RAW_SYSCALL_H */