1 // SPDX-License-Identifier: GPL-2.0 2 #include <uapi/linux/mman.h> 3 4 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, 5 struct syscall_arg *arg) 6 { 7 int printed = 0, prot = arg->val; 8 9 if (prot == PROT_NONE) 10 return scnprintf(bf, size, "NONE"); 11 #define P_MMAP_PROT(n) \ 12 if (prot & PROT_##n) { \ 13 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 14 prot &= ~PROT_##n; \ 15 } 16 17 P_MMAP_PROT(EXEC); 18 P_MMAP_PROT(READ); 19 P_MMAP_PROT(WRITE); 20 P_MMAP_PROT(SEM); 21 P_MMAP_PROT(GROWSDOWN); 22 P_MMAP_PROT(GROWSUP); 23 #undef P_MMAP_PROT 24 25 if (prot) 26 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot); 27 28 return printed; 29 } 30 31 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot 32 33 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, 34 struct syscall_arg *arg) 35 { 36 int printed = 0, flags = arg->val; 37 38 if (flags & MAP_ANONYMOUS) 39 arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */ 40 41 #define P_MMAP_FLAG(n) \ 42 if (flags & MAP_##n) { \ 43 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 44 flags &= ~MAP_##n; \ 45 } 46 47 P_MMAP_FLAG(SHARED); 48 P_MMAP_FLAG(PRIVATE); 49 #ifdef MAP_32BIT 50 P_MMAP_FLAG(32BIT); 51 #endif 52 P_MMAP_FLAG(ANONYMOUS); 53 P_MMAP_FLAG(DENYWRITE); 54 P_MMAP_FLAG(EXECUTABLE); 55 P_MMAP_FLAG(FILE); 56 P_MMAP_FLAG(FIXED); 57 #ifdef MAP_FIXED_NOREPLACE 58 P_MMAP_FLAG(FIXED_NOREPLACE); 59 #endif 60 P_MMAP_FLAG(GROWSDOWN); 61 P_MMAP_FLAG(HUGETLB); 62 P_MMAP_FLAG(LOCKED); 63 P_MMAP_FLAG(NONBLOCK); 64 P_MMAP_FLAG(NORESERVE); 65 P_MMAP_FLAG(POPULATE); 66 P_MMAP_FLAG(STACK); 67 P_MMAP_FLAG(UNINITIALIZED); 68 #ifdef MAP_SYNC 69 P_MMAP_FLAG(SYNC); 70 #endif 71 #undef P_MMAP_FLAG 72 73 if (flags) 74 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 75 76 return printed; 77 } 78 79 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags 80 81 static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, 82 struct syscall_arg *arg) 83 { 84 int printed = 0, flags = arg->val; 85 86 #define P_MREMAP_FLAG(n) \ 87 if (flags & MREMAP_##n) { \ 88 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 89 flags &= ~MREMAP_##n; \ 90 } 91 92 P_MREMAP_FLAG(MAYMOVE); 93 P_MREMAP_FLAG(FIXED); 94 #undef P_MREMAP_FLAG 95 96 if (flags) 97 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 98 99 return printed; 100 } 101 102 #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags 103 104 static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size) 105 { 106 #include "trace/beauty/generated/madvise_behavior_array.c" 107 static DEFINE_STRARRAY(madvise_advices); 108 109 if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL) 110 return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]); 111 112 return scnprintf(bf, size, "%#", behavior); 113 } 114 115 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, 116 struct syscall_arg *arg) 117 { 118 return madvise__scnprintf_behavior(arg->val, bf, size); 119 } 120 121 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior 122