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78 lines
1.8 KiB
78 lines
1.8 KiB
// SPDX-License-Identifier: LGPL-2.1 |
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/* |
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* trace/beauty/cone.c |
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* |
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* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <[email protected]> |
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*/ |
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#include "trace/beauty/beauty.h" |
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#include <linux/kernel.h> |
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#include <sys/types.h> |
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#include <uapi/linux/sched.h> |
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static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) |
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{ |
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const char *prefix = "CLONE_"; |
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int printed = 0; |
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#define P_FLAG(n) \ |
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if (flags & CLONE_##n) { \ |
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printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
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flags &= ~CLONE_##n; \ |
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} |
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P_FLAG(VM); |
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P_FLAG(FS); |
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P_FLAG(FILES); |
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P_FLAG(SIGHAND); |
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P_FLAG(PIDFD); |
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P_FLAG(PTRACE); |
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P_FLAG(VFORK); |
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P_FLAG(PARENT); |
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P_FLAG(THREAD); |
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P_FLAG(NEWNS); |
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P_FLAG(SYSVSEM); |
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P_FLAG(SETTLS); |
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P_FLAG(PARENT_SETTID); |
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P_FLAG(CHILD_CLEARTID); |
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P_FLAG(DETACHED); |
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P_FLAG(UNTRACED); |
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P_FLAG(CHILD_SETTID); |
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P_FLAG(NEWCGROUP); |
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P_FLAG(NEWUTS); |
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P_FLAG(NEWIPC); |
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P_FLAG(NEWUSER); |
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P_FLAG(NEWPID); |
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P_FLAG(NEWNET); |
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P_FLAG(IO); |
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P_FLAG(CLEAR_SIGHAND); |
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P_FLAG(INTO_CGROUP); |
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#undef P_FLAG |
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if (flags) |
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printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); |
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return printed; |
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} |
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size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg) |
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{ |
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unsigned long flags = arg->val; |
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enum syscall_clone_args { |
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SCC_FLAGS = (1 << 0), |
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SCC_CHILD_STACK = (1 << 1), |
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SCC_PARENT_TIDPTR = (1 << 2), |
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SCC_CHILD_TIDPTR = (1 << 3), |
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SCC_TLS = (1 << 4), |
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}; |
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if (!(flags & CLONE_PARENT_SETTID)) |
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arg->mask |= SCC_PARENT_TIDPTR; |
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if (!(flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID))) |
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arg->mask |= SCC_CHILD_TIDPTR; |
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if (!(flags & CLONE_SETTLS)) |
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arg->mask |= SCC_TLS; |
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return clone__scnprintf_flags(flags, bf, size, arg->show_string_prefix); |
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}
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