1 // SPDX-License-Identifier: LGPL-2.1 2 #include <uapi/linux/mman.h> 3 #include <linux/log2.h> 4 5 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, 6 struct syscall_arg *arg) 7 { 8 const char *prot_prefix = "PROT_"; 9 int printed = 0, prot = arg->val; 10 bool show_prefix = arg->show_string_prefix; 11 12 if (prot == PROT_NONE) 13 return scnprintf(bf, size, "%sNONE", show_prefix ? prot_prefix : ""); 14 #define P_MMAP_PROT(n) \ 15 if (prot & PROT_##n) { \ 16 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prot_prefix :"", #n); \ 17 prot &= ~PROT_##n; \ 18 } 19 20 P_MMAP_PROT(EXEC); 21 P_MMAP_PROT(READ); 22 P_MMAP_PROT(WRITE); 23 P_MMAP_PROT(SEM); 24 P_MMAP_PROT(GROWSDOWN); 25 P_MMAP_PROT(GROWSUP); 26 #undef P_MMAP_PROT 27 28 if (prot) 29 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot); 30 31 return printed; 32 } 33 34 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot 35 36 static size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) 37 { 38 #include "trace/beauty/generated/mmap_flags_array.c" 39 static DEFINE_STRARRAY(mmap_flags, "MAP_"); 40 41 return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, show_prefix, flags); 42 } 43 44 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, 45 struct syscall_arg *arg) 46 { 47 unsigned long flags = arg->val; 48 49 if (flags & MAP_ANONYMOUS) 50 arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */ 51 52 return mmap__scnprintf_flags(flags, bf, size, arg->show_string_prefix); 53 } 54 55 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags 56 57 static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, 58 struct syscall_arg *arg) 59 { 60 const char *flags_prefix = "MREMAP_"; 61 bool show_prefix = arg->show_string_prefix; 62 int printed = 0, flags = arg->val; 63 64 #define P_MREMAP_FLAG(n) \ 65 if (flags & MREMAP_##n) { \ 66 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? flags_prefix : "", #n); \ 67 flags &= ~MREMAP_##n; \ 68 } 69 70 P_MREMAP_FLAG(MAYMOVE); 71 P_MREMAP_FLAG(FIXED); 72 #undef P_MREMAP_FLAG 73 74 if (flags) 75 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 76 77 return printed; 78 } 79 80 #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags 81 82 static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size) 83 { 84 #include "trace/beauty/generated/madvise_behavior_array.c" 85 static DEFINE_STRARRAY(madvise_advices, "MADV_"); 86 87 if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL) 88 return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]); 89 90 return scnprintf(bf, size, "%#", behavior); 91 } 92 93 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, 94 struct syscall_arg *arg) 95 { 96 return madvise__scnprintf_behavior(arg->val, bf, size); 97 } 98 99 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior 100