| 1 | // SPDX-License-Identifier: LGPL-2.1 |
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| 2 | #include <sched.h> |
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| 3 | |
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| 4 | /* |
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| 5 | * Not defined anywhere else, probably, just to make sure we |
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| 6 | * catch future flags |
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| 7 | */ |
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| 8 | #define SCHED_POLICY_MASK 0xff |
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| 9 | |
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| 10 | #ifndef SCHED_DEADLINE |
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| 11 | #define SCHED_DEADLINE 6 |
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| 12 | #endif |
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| 13 | #ifndef SCHED_RESET_ON_FORK |
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| 14 | #define SCHED_RESET_ON_FORK 0x40000000 |
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| 15 | #endif |
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| 16 | |
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| 17 | static size_t syscall_arg__scnprintf_sched_policy(char *bf, size_t size, |
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| 18 | struct syscall_arg *arg) |
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| 19 | { |
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| 20 | bool show_prefix = arg->show_string_prefix; |
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| 21 | const char *prefix = "SCHED_" ; |
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| 22 | const char *policies[] = { |
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| 23 | "NORMAL" , "FIFO" , "RR" , "BATCH" , "ISO" , "IDLE" , "DEADLINE" , |
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| 24 | }; |
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| 25 | size_t printed; |
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| 26 | int policy = arg->val, |
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| 27 | flags = policy & ~SCHED_POLICY_MASK; |
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| 28 | |
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| 29 | policy &= SCHED_POLICY_MASK; |
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| 30 | if (policy <= SCHED_DEADLINE) |
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| 31 | printed = scnprintf(buf: bf, size, fmt: "%s%s" , show_prefix ? prefix : "" , policies[policy]); |
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| 32 | else |
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| 33 | printed = scnprintf(buf: bf, size, fmt: "%#x" , policy); |
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| 34 | |
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| 35 | #define P_POLICY_FLAG(n) \ |
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| 36 | if (flags & SCHED_##n) { \ |
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| 37 | printed += scnprintf(bf + printed, size - printed, "|%s%s", show_prefix ? prefix : "", #n); \ |
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| 38 | flags &= ~SCHED_##n; \ |
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| 39 | } |
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| 40 | |
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| 41 | P_POLICY_FLAG(RESET_ON_FORK); |
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| 42 | #undef P_POLICY_FLAG |
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| 43 | |
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| 44 | if (flags) |
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| 45 | printed += scnprintf(buf: bf + printed, size: size - printed, fmt: "|%#x" , flags); |
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| 46 | |
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| 47 | return printed; |
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| 48 | } |
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| 49 | |
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| 50 | #define SCA_SCHED_POLICY syscall_arg__scnprintf_sched_policy |
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| 51 | |
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