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perf beauty: Introduce scrape script for 'clone' syscall 'flags' argument

It was using the first variation on producing a string representation for a binary flag, one that used the copy of uapi/linux/sched.h with preprocessor tricks that had to be updated everytime a new flag was introduced. Use the more recent scrape script + strarray + strarray__scnprintf_flags() combo. $ tools/perf/trace/beauty/clone.sh | head -5 static const char *clone_flags[] = { [ilog2(0x00000100) + 1] = "VM", [ilog2(0x00000200) + 1] = "FS", [ilog2(0x00000400) + 1] = "FILES", [ilog2(0x00000800) + 1] = "SIGHAND", $ Now we can move uapi/linux/sched.h from tools/include/, that is used for building perf to the scrape only directory tools/perf/trace/beauty/include.

Arnaldo Carvalho de Melo committed 2 years ago

Commit 2316ef51 parent bd62de05 files · +34 −45Browse files

Showing the changes to tools/include/uapi/linux (1 of 5 files). Show all

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tools/include/uapi/linux/sched.h+0−148
@@ -1,148 +0,0 @@
1−/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2−#ifndef _UAPI_LINUX_SCHED_H
3−#define _UAPI_LINUX_SCHED_H
4−
5−#include <linux/types.h>
6−
7−/*
8− * cloning flags:
9− */
10−#define CSIGNAL 0x000000ff /* signal mask to be sent at exit */
11−#define CLONE_VM 0x00000100 /* set if VM shared between processes */
12−#define CLONE_FS 0x00000200 /* set if fs info shared between processes */
13−#define CLONE_FILES 0x00000400 /* set if open files shared between processes */
14−#define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */
15−#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */
16−#define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */
17−#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
18−#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */
19−#define CLONE_THREAD 0x00010000 /* Same thread group? */
20−#define CLONE_NEWNS 0x00020000 /* New mount namespace group */
21−#define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */
22−#define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */
23−#define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */
24−#define CLONE_CHILD_CLEARTID 0x00200000 /* clear the TID in the child */
25−#define CLONE_DETACHED 0x00400000 /* Unused, ignored */
26−#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */
27−#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */
28−#define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace */
29−#define CLONE_NEWUTS 0x04000000 /* New utsname namespace */
30−#define CLONE_NEWIPC 0x08000000 /* New ipc namespace */
31−#define CLONE_NEWUSER 0x10000000 /* New user namespace */
32−#define CLONE_NEWPID 0x20000000 /* New pid namespace */
33−#define CLONE_NEWNET 0x40000000 /* New network namespace */
34−#define CLONE_IO 0x80000000 /* Clone io context */
35−
36−/* Flags for the clone3() syscall. */
37−#define CLONE_CLEAR_SIGHAND 0x100000000ULL /* Clear any signal handler and reset to SIG_DFL. */
38−#define CLONE_INTO_CGROUP 0x200000000ULL /* Clone into a specific cgroup given the right permissions. */
39−
40−/*
41− * cloning flags intersect with CSIGNAL so can be used with unshare and clone3
42− * syscalls only:
43− */
44−#define CLONE_NEWTIME 0x00000080 /* New time namespace */
45−
46−#ifndef __ASSEMBLY__
47−/**
48− * struct clone_args - arguments for the clone3 syscall
49− * @flags: Flags for the new process as listed above.
50− * All flags are valid except for CSIGNAL and
51− * CLONE_DETACHED.
52− * @pidfd: If CLONE_PIDFD is set, a pidfd will be
53− * returned in this argument.
54− * @child_tid: If CLONE_CHILD_SETTID is set, the TID of the
55− * child process will be returned in the child's
56− * memory.
57− * @parent_tid: If CLONE_PARENT_SETTID is set, the TID of
58− * the child process will be returned in the
59− * parent's memory.
60− * @exit_signal: The exit_signal the parent process will be
61− * sent when the child exits.
62− * @stack: Specify the location of the stack for the
63− * child process.
64− * Note, @stack is expected to point to the
65− * lowest address. The stack direction will be
66− * determined by the kernel and set up
67− * appropriately based on @stack_size.
68− * @stack_size: The size of the stack for the child process.
69− * @tls: If CLONE_SETTLS is set, the tls descriptor
70− * is set to tls.
71− * @set_tid: Pointer to an array of type *pid_t. The size
72− * of the array is defined using @set_tid_size.
73− * This array is used to select PIDs/TIDs for
74− * newly created processes. The first element in
75− * this defines the PID in the most nested PID
76− * namespace. Each additional element in the array
77− * defines the PID in the parent PID namespace of
78− * the original PID namespace. If the array has
79− * less entries than the number of currently
80− * nested PID namespaces only the PIDs in the
81− * corresponding namespaces are set.
82− * @set_tid_size: This defines the size of the array referenced
83− * in @set_tid. This cannot be larger than the
84− * kernel's limit of nested PID namespaces.
85− * @cgroup: If CLONE_INTO_CGROUP is specified set this to
86− * a file descriptor for the cgroup.
87− *
88− * The structure is versioned by size and thus extensible.
89− * New struct members must go at the end of the struct and
90− * must be properly 64bit aligned.
91− */
92−struct clone_args {
93− __aligned_u64 flags;
94− __aligned_u64 pidfd;
95− __aligned_u64 child_tid;
96− __aligned_u64 parent_tid;
97− __aligned_u64 exit_signal;
98− __aligned_u64 stack;
99− __aligned_u64 stack_size;
100− __aligned_u64 tls;
101− __aligned_u64 set_tid;
102− __aligned_u64 set_tid_size;
103− __aligned_u64 cgroup;
104−};
105−#endif
106−
107−#define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */
108−#define CLONE_ARGS_SIZE_VER1 80 /* sizeof second published struct */
109−#define CLONE_ARGS_SIZE_VER2 88 /* sizeof third published struct */
110−
111−/*
112− * Scheduling policies
113− */
114−#define SCHED_NORMAL 0
115−#define SCHED_FIFO 1
116−#define SCHED_RR 2
117−#define SCHED_BATCH 3
118−/* SCHED_ISO: reserved but not implemented yet */
119−#define SCHED_IDLE 5
120−#define SCHED_DEADLINE 6
121−
122−/* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */
123−#define SCHED_RESET_ON_FORK 0x40000000
124−
125−/*
126− * For the sched_{set,get}attr() calls
127− */
128−#define SCHED_FLAG_RESET_ON_FORK 0x01
129−#define SCHED_FLAG_RECLAIM 0x02
130−#define SCHED_FLAG_DL_OVERRUN 0x04
131−#define SCHED_FLAG_KEEP_POLICY 0x08
132−#define SCHED_FLAG_KEEP_PARAMS 0x10
133−#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20
134−#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40
135−
136−#define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \
137− SCHED_FLAG_KEEP_PARAMS)
138−
139−#define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \
140− SCHED_FLAG_UTIL_CLAMP_MAX)
141−
142−#define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \
143− SCHED_FLAG_RECLAIM | \
144− SCHED_FLAG_DL_OVERRUN | \
145− SCHED_FLAG_KEEP_ALL | \
146− SCHED_FLAG_UTIL_CLAMP)
147−
148−#endif /* _UAPI_LINUX_SCHED_H */