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      1 // Copyright 2015 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef SANDBOX_LINUX_BPF_DSL_LINUX_SYSCALL_RANGES_H_
      6 #define SANDBOX_LINUX_BPF_DSL_LINUX_SYSCALL_RANGES_H_
      7 
      8 #if defined(__x86_64__)
      9 
     10 #define MIN_SYSCALL         0u
     11 #define MAX_PUBLIC_SYSCALL  1024u
     12 #define MAX_SYSCALL         MAX_PUBLIC_SYSCALL
     13 
     14 #elif defined(__i386__)
     15 
     16 #define MIN_SYSCALL         0u
     17 #define MAX_PUBLIC_SYSCALL  1024u
     18 #define MAX_SYSCALL         MAX_PUBLIC_SYSCALL
     19 
     20 #elif defined(__arm__) && (defined(__thumb__) || defined(__ARM_EABI__))
     21 
     22 // ARM EABI includes "ARM private" system calls starting at |__ARM_NR_BASE|,
     23 // and a "ghost syscall private to the kernel", cmpxchg,
     24 // at |__ARM_NR_BASE+0x00fff0|.
     25 // See </arch/arm/include/asm/unistd.h> in the Linux kernel.
     26 
     27 // __NR_SYSCALL_BASE is 0 in thumb and ARM EABI.
     28 #define MIN_SYSCALL         0u
     29 #define MAX_PUBLIC_SYSCALL  (MIN_SYSCALL + 1024u)
     30 // __ARM_NR_BASE is __NR_SYSCALL_BASE + 0xf0000u
     31 #define MIN_PRIVATE_SYSCALL 0xf0000u
     32 #define MAX_PRIVATE_SYSCALL (MIN_PRIVATE_SYSCALL + 16u)
     33 #define MIN_GHOST_SYSCALL   (MIN_PRIVATE_SYSCALL + 0xfff0u)
     34 #define MAX_SYSCALL         (MIN_GHOST_SYSCALL + 4u)
     35 
     36 #elif defined(__mips__) && (_MIPS_SIM == _ABIO32)
     37 
     38 #include <asm/unistd.h>  // for __NR_O32_Linux and __NR_Linux_syscalls
     39 #define MIN_SYSCALL         __NR_O32_Linux
     40 #define MAX_PUBLIC_SYSCALL  (MIN_SYSCALL + __NR_Linux_syscalls)
     41 #define MAX_SYSCALL         MAX_PUBLIC_SYSCALL
     42 
     43 #elif defined(__mips__) && (_MIPS_SIM == _ABI64)
     44 
     45 #error "Add support to header file"
     46 
     47 #elif defined(__aarch64__)
     48 
     49 #define MIN_SYSCALL 0u
     50 #define MAX_PUBLIC_SYSCALL 279u
     51 #define MAX_SYSCALL MAX_PUBLIC_SYSCALL
     52 
     53 #else
     54 #error "Unsupported architecture"
     55 #endif
     56 
     57 #endif  // SANDBOX_LINUX_BPF_DSL_LINUX_SYSCALL_RANGES_H_
     58