diff options
Diffstat (limited to 'aarch64-none-linux-gnu/libc/usr/include/linux/kcov.h')
| -rw-r--r-- | aarch64-none-linux-gnu/libc/usr/include/linux/kcov.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/aarch64-none-linux-gnu/libc/usr/include/linux/kcov.h b/aarch64-none-linux-gnu/libc/usr/include/linux/kcov.h new file mode 100644 index 0000000..9529867 --- /dev/null +++ b/aarch64-none-linux-gnu/libc/usr/include/linux/kcov.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _LINUX_KCOV_IOCTLS_H +#define _LINUX_KCOV_IOCTLS_H + +#include <linux/types.h> + +#define KCOV_INIT_TRACE _IOR('c', 1, unsigned long) +#define KCOV_ENABLE _IO('c', 100) +#define KCOV_DISABLE _IO('c', 101) + +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) + +#endif /* _LINUX_KCOV_IOCTLS_H */ |