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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef _LINUX_KCOV_IOCTLS_H#define _LINUX_KCOV_IOCTLS_H
#include <linux/types.h>
/* * Argument for KCOV_REMOTE_ENABLE ioctl, see Documentation/dev-tools/kcov.rst * and the comment before kcov_remote_start() for usage details. */struct kcov_remote_arg { __u32 trace_mode; /* KCOV_TRACE_PC or KCOV_TRACE_CMP */ __u32 area_size; /* Length of coverage buffer in words */ __u32 num_handles; /* Size of handles array */ __aligned_u64 common_handle; __aligned_u64 handles[];};
#define KCOV_REMOTE_MAX_HANDLES 0x100
#define KCOV_INIT_TRACE _IOR('c', 1, unsigned long)#define KCOV_ENABLE _IO('c', 100)#define KCOV_DISABLE _IO('c', 101)#define KCOV_REMOTE_ENABLE _IOW('c', 102, struct kcov_remote_arg)
enum { /* * Tracing coverage collection mode. * Covered PCs are collected in a per-task buffer. * In new KCOV version the mode is chosen by calling * ioctl(fd, KCOV_ENABLE, mode). In older versions the mode argument * was supposed to be 0 in such a call. So, for reasons of backward * compatibility, we have chosen the value KCOV_TRACE_PC to be 0. */ KCOV_TRACE_PC = 0, /* Collecting comparison operands mode. */ KCOV_TRACE_CMP = 1,};
/* * The format for the types of collected comparisons. * * Bit 0 shows whether one of the arguments is a compile-time constant. * Bits 1 & 2 contain log2 of the argument size, up to 8 bytes. */#define KCOV_CMP_CONST (1 << 0)#define KCOV_CMP_SIZE(n) ((n) << 1)#define KCOV_CMP_MASK KCOV_CMP_SIZE(3)
#define KCOV_SUBSYSTEM_COMMON (0x00ull << 56)#define KCOV_SUBSYSTEM_USB (0x01ull << 56)
#define KCOV_SUBSYSTEM_MASK (0xffull << 56)#define KCOV_INSTANCE_MASK (0xffffffffull)
static inline __u64 kcov_remote_handle(__u64 subsys, __u64 inst){ if (subsys & ~KCOV_SUBSYSTEM_MASK || inst & ~KCOV_INSTANCE_MASK) return 0; return subsys | inst;}
#endif /* _LINUX_KCOV_IOCTLS_H */