tools include uapi: Grab a copy of linux/prctl.h

We will use it to generate tables for beautifying prctl's 'option' arg
and some of the others eventually.

Cc: Andy Lutomirski <luto@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-cg8mpmz4hk9nfih685emnbk9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 201 insertions, 0 deletions

diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
new file mode 100644
index 000000000000..a8d0759a9e40
--- /dev/null
+++ b/tools/include/uapi/linux/prctl.h
@@ -0,0 +1,200 @@
+#ifndef _LINUX_PRCTL_H
+#define _LINUX_PRCTL_H
+
+#include <linux/types.h>
+
+/* Values to pass as first argument to prctl() */
+
+#define PR_SET_PDEATHSIG  1  /* Second arg is a signal */
+#define PR_GET_PDEATHSIG  2  /* Second arg is a ptr to return the signal */
+
+/* Get/set current->mm->dumpable */
+#define PR_GET_DUMPABLE   3
+#define PR_SET_DUMPABLE   4
+
+/* Get/set unaligned access control bits (if meaningful) */
+#define PR_GET_UNALIGN    5
+#define PR_SET_UNALIGN    6
+# define PR_UNALIGN_NOPRINT     1       /* silently fix up unaligned user accesses */
+# define PR_UNALIGN_SIGBUS      2       /* generate SIGBUS on unaligned user access */
+
+/* Get/set whether or not to drop capabilities on setuid() away from
+ * uid 0 (as per security/commoncap.c) */
+#define PR_GET_KEEPCAPS   7
+#define PR_SET_KEEPCAPS   8
+
+/* Get/set floating-point emulation control bits (if meaningful) */
+#define PR_GET_FPEMU  9
+#define PR_SET_FPEMU 10
+# define PR_FPEMU_NOPRINT       1       /* silently emulate fp operations accesses */
+# define PR_FPEMU_SIGFPE        2       /* don't emulate fp operations, send SIGFPE instead */
+
+/* Get/set floating-point exception mode (if meaningful) */
+#define PR_GET_FPEXC    11
+#define PR_SET_FPEXC    12
+# define PR_FP_EXC_SW_ENABLE    0x80    /* Use FPEXC for FP exception enables */
+# define PR_FP_EXC_DIV          0x010000        /* floating point divide by zero */
+# define PR_FP_EXC_OVF          0x020000        /* floating point overflow */
+# define PR_FP_EXC_UND          0x040000        /* floating point underflow */
+# define PR_FP_EXC_RES          0x080000        /* floating point inexact result */
+# define PR_FP_EXC_INV          0x100000        /* floating point invalid operation */
+# define PR_FP_EXC_DISABLED     0       /* FP exceptions disabled */
+# define PR_FP_EXC_NONRECOV     1       /* async non-recoverable exc. mode */
+# define PR_FP_EXC_ASYNC        2       /* async recoverable exception mode */
+# define PR_FP_EXC_PRECISE      3       /* precise exception mode */
+
+/* Get/set whether we use statistical process timing or accurate timestamp
+ * based process timing */
+#define PR_GET_TIMING   13
+#define PR_SET_TIMING   14
+# define PR_TIMING_STATISTICAL  0       /* Normal, traditional,
+                                                   statistical process timing */
+# define PR_TIMING_TIMESTAMP    1       /* Accurate timestamp based
+                                                   process timing */
+
+#define PR_SET_NAME    15               /* Set process name */
+#define PR_GET_NAME    16               /* Get process name */
+
+/* Get/set process endian */
+#define PR_GET_ENDIAN   19
+#define PR_SET_ENDIAN   20
+# define PR_ENDIAN_BIG          0
+# define PR_ENDIAN_LITTLE       1       /* True little endian mode */
+# define PR_ENDIAN_PPC_LITTLE   2       /* "PowerPC" pseudo little endian */
+
+/* Get/set process seccomp mode */
+#define PR_GET_SECCOMP  21
+#define PR_SET_SECCOMP  22
+
+/* Get/set the capability bounding set (as per security/commoncap.c) */
+#define PR_CAPBSET_READ 23
+#define PR_CAPBSET_DROP 24
+
+/* Get/set the process' ability to use the timestamp counter instruction */
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE          1       /* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV         2       /* throw a SIGSEGV instead of reading the TSC */
+
+/* Get/set securebits (as per security/commoncap.c) */
+#define PR_GET_SECUREBITS 27
+#define PR_SET_SECUREBITS 28
+
+/*
+ * Get/set the timerslack as used by poll/select/nanosleep
+ * A value of 0 means "use default"
+ */
+#define PR_SET_TIMERSLACK 29
+#define PR_GET_TIMERSLACK 30
+
+#define PR_TASK_PERF_EVENTS_DISABLE             31
+#define PR_TASK_PERF_EVENTS_ENABLE              32
+
+/*
+ * Set early/late kill mode for hwpoison memory corruption.
+ * This influences when the process gets killed on a memory corruption.
+ */
+#define PR_MCE_KILL     33
+# define PR_MCE_KILL_CLEAR   0
+# define PR_MCE_KILL_SET     1
+
+# define PR_MCE_KILL_LATE    0
+# define PR_MCE_KILL_EARLY   1
+# define PR_MCE_KILL_DEFAULT 2
+
+#define PR_MCE_KILL_GET 34
+
+/*
+ * Tune up process memory map specifics.
+ */
+#define PR_SET_MM               35
+# define PR_SET_MM_START_CODE           1
+# define PR_SET_MM_END_CODE             2
+# define PR_SET_MM_START_DATA           3
+# define PR_SET_MM_END_DATA             4
+# define PR_SET_MM_START_STACK          5
+# define PR_SET_MM_START_BRK            6
+# define PR_SET_MM_BRK                  7
+# define PR_SET_MM_ARG_START            8
+# define PR_SET_MM_ARG_END              9
+# define PR_SET_MM_ENV_START            10
+# define PR_SET_MM_ENV_END              11
+# define PR_SET_MM_AUXV                 12
+# define PR_SET_MM_EXE_FILE             13
+# define PR_SET_MM_MAP                  14
+# define PR_SET_MM_MAP_SIZE             15
+
+/*
+ * This structure provides new memory descriptor
+ * map which mostly modifies /proc/pid/stat[m]
+ * output for a task. This mostly done in a
+ * sake of checkpoint/restore functionality.
+ */
+struct prctl_mm_map {
+        __u64   start_code;             /* code section bounds */
+        __u64   end_code;
+        __u64   start_data;             /* data section bounds */
+        __u64   end_data;
+        __u64   start_brk;              /* heap for brk() syscall */
+        __u64   brk;
+        __u64   start_stack;            /* stack starts at */
+        __u64   arg_start;              /* command line arguments bounds */
+        __u64   arg_end;
+        __u64   env_start;              /* environment variables bounds */
+        __u64   env_end;
+        __u64   *auxv;                  /* auxiliary vector */
+        __u32   auxv_size;              /* vector size */
+        __u32   exe_fd;                 /* /proc/$pid/exe link file */
+};
+
+/*
+ * Set specific pid that is allowed to ptrace the current task.
+ * A value of 0 mean "no process".
+ */
+#define PR_SET_PTRACER 0x59616d61
+# define PR_SET_PTRACER_ANY ((unsigned long)-1)
+
+#define PR_SET_CHILD_SUBREAPER  36
+#define PR_GET_CHILD_SUBREAPER  37
+
+/*
+ * If no_new_privs is set, then operations that grant new privileges (i.e.
+ * execve) will either fail or not grant them.  This affects suid/sgid,
+ * file capabilities, and LSMs.
+ *
+ * Operations that merely manipulate or drop existing privileges (setresuid,
+ * capset, etc.) will still work.  Drop those privileges if you want them gone.
+ *
+ * Changing LSM security domain is considered a new privilege.  So, for example,
+ * asking selinux for a specific new context (e.g. with runcon) will result
+ * in execve returning -EPERM.
+ *
+ * See Documentation/prctl/no_new_privs.txt for more details.
+ */
+#define PR_SET_NO_NEW_PRIVS     38
+#define PR_GET_NO_NEW_PRIVS     39
+
+#define PR_GET_TID_ADDRESS      40
+
+#define PR_SET_THP_DISABLE      41
+#define PR_GET_THP_DISABLE      42
+
+/*
+ * Tell the kernel to start/stop helping userspace manage bounds tables.
+ */
+#define PR_MPX_ENABLE_MANAGEMENT  43
+#define PR_MPX_DISABLE_MANAGEMENT 44
+
+#define PR_SET_FP_MODE          45
+#define PR_GET_FP_MODE          46
+# define PR_FP_MODE_FR          (1 << 0)        /* 64b FP registers */
+# define PR_FP_MODE_FRE         (1 << 1)        /* 32b compatibility */
+
+/* Control the ambient capability set */
+#define PR_CAP_AMBIENT                  47
+# define PR_CAP_AMBIENT_IS_SET          1
+# define PR_CAP_AMBIENT_RAISE           2
+# define PR_CAP_AMBIENT_LOWER           3
+# define PR_CAP_AMBIENT_CLEAR_ALL       4
+
+#endif /* _LINUX_PRCTL_H */
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 322629423b49..8d8b37198666 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -6,6 +6,7 @@ include/uapi/drm/i915_drm.h
 include/uapi/linux/fcntl.h
 include/uapi/linux/kvm.h
 include/uapi/linux/perf_event.h
+include/uapi/linux/prctl.h
 include/uapi/linux/sched.h
 include/uapi/linux/stat.h
 include/uapi/linux/vhost.h