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-rw-r--r--security/sandbox/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/security/sandbox/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h b/security/sandbox/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h
new file mode 100644
index 0000000000..313511f22e
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+++ b/security/sandbox/chromium/sandbox/linux/bpf_dsl/linux_syscall_ranges.h
@@ -0,0 +1,63 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SANDBOX_LINUX_BPF_DSL_LINUX_SYSCALL_RANGES_H_
+#define SANDBOX_LINUX_BPF_DSL_LINUX_SYSCALL_RANGES_H_
+
+#include "build/build_config.h"
+
+#if defined(__x86_64__)
+
+#define MIN_SYSCALL 0u
+#define MAX_PUBLIC_SYSCALL 1024u
+#define MAX_SYSCALL MAX_PUBLIC_SYSCALL
+
+#elif defined(__i386__)
+
+#define MIN_SYSCALL 0u
+#define MAX_PUBLIC_SYSCALL 1024u
+#define MAX_SYSCALL MAX_PUBLIC_SYSCALL
+
+#elif defined(__arm__) && (defined(__thumb__) || defined(__ARM_EABI__))
+
+// ARM EABI includes "ARM private" system calls starting at |__ARM_NR_BASE|,
+// and a "ghost syscall private to the kernel", cmpxchg,
+// at |__ARM_NR_BASE+0x00fff0|.
+// See </arch/arm/include/asm/unistd.h> in the Linux kernel.
+
+// __NR_SYSCALL_BASE is 0 in thumb and ARM EABI.
+#define MIN_SYSCALL 0u
+#define MAX_PUBLIC_SYSCALL (MIN_SYSCALL + 1024u)
+// __ARM_NR_BASE is __NR_SYSCALL_BASE + 0xf0000u
+#define MIN_PRIVATE_SYSCALL 0xf0000u
+#define MAX_PRIVATE_SYSCALL (MIN_PRIVATE_SYSCALL + 16u)
+#define MIN_GHOST_SYSCALL (MIN_PRIVATE_SYSCALL + 0xfff0u)
+#define MAX_SYSCALL (MIN_GHOST_SYSCALL + 4u)
+
+#elif defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS)
+
+#include <asm/unistd.h> // for __NR_O32_Linux and __NR_Linux_syscalls
+#define MIN_SYSCALL __NR_O32_Linux
+#define MAX_PUBLIC_SYSCALL (MIN_SYSCALL + __NR_Linux_syscalls)
+#define MAX_SYSCALL MAX_PUBLIC_SYSCALL
+
+#elif defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_64_BITS)
+
+#include <asm/unistd.h> // for __NR_64_Linux and __NR_64_Linux_syscalls
+#define MIN_SYSCALL __NR_64_Linux
+#define MAX_PUBLIC_SYSCALL (MIN_SYSCALL + __NR_64_Linux_syscalls)
+#define MAX_SYSCALL MAX_PUBLIC_SYSCALL
+
+#elif defined(__aarch64__)
+
+#include <asm-generic/unistd.h>
+#define MIN_SYSCALL 0u
+#define MAX_PUBLIC_SYSCALL __NR_syscalls
+#define MAX_SYSCALL MAX_PUBLIC_SYSCALL
+
+#else
+#error "Unsupported architecture"
+#endif
+
+#endif // SANDBOX_LINUX_BPF_DSL_LINUX_SYSCALL_RANGES_H_