| // SPDX-License-Identifier: LGPL-2.1 |
| #include <uapi/linux/mman.h> |
| #include <linux/log2.h> |
| |
| static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, |
| struct syscall_arg *arg) |
| { |
| const char *prot_prefix = "PROT_"; |
| int printed = 0, prot = arg->val; |
| bool show_prefix = arg->show_string_prefix; |
| |
| if (prot == PROT_NONE) |
| return scnprintf(bf, size, "%sNONE", show_prefix ? prot_prefix : ""); |
| #define P_MMAP_PROT(n) \ |
| if (prot & PROT_##n) { \ |
| printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prot_prefix :"", #n); \ |
| prot &= ~PROT_##n; \ |
| } |
| |
| P_MMAP_PROT(READ); |
| P_MMAP_PROT(WRITE); |
| P_MMAP_PROT(EXEC); |
| P_MMAP_PROT(SEM); |
| P_MMAP_PROT(GROWSDOWN); |
| P_MMAP_PROT(GROWSUP); |
| #undef P_MMAP_PROT |
| |
| if (prot) |
| printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot); |
| |
| return printed; |
| } |
| |
| #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot |
| |
| static size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) |
| { |
| #include "trace/beauty/generated/mmap_flags_array.c" |
| static DEFINE_STRARRAY(mmap_flags, "MAP_"); |
| |
| return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, show_prefix, flags); |
| } |
| |
| static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, |
| struct syscall_arg *arg) |
| { |
| unsigned long flags = arg->val; |
| |
| if (flags & MAP_ANONYMOUS) |
| arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */ |
| |
| return mmap__scnprintf_flags(flags, bf, size, arg->show_string_prefix); |
| } |
| |
| #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags |
| |
| static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, |
| struct syscall_arg *arg) |
| { |
| const char *flags_prefix = "MREMAP_"; |
| bool show_prefix = arg->show_string_prefix; |
| int printed = 0, flags = arg->val; |
| |
| #define P_MREMAP_FLAG(n) \ |
| if (flags & MREMAP_##n) { \ |
| printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? flags_prefix : "", #n); \ |
| flags &= ~MREMAP_##n; \ |
| } |
| |
| P_MREMAP_FLAG(MAYMOVE); |
| P_MREMAP_FLAG(FIXED); |
| #undef P_MREMAP_FLAG |
| |
| if (flags) |
| printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); |
| |
| return printed; |
| } |
| |
| #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags |
| |
| static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size) |
| { |
| #include "trace/beauty/generated/madvise_behavior_array.c" |
| static DEFINE_STRARRAY(madvise_advices, "MADV_"); |
| |
| if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL) |
| return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]); |
| |
| return scnprintf(bf, size, "%#", behavior); |
| } |
| |
| static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, |
| struct syscall_arg *arg) |
| { |
| return madvise__scnprintf_behavior(arg->val, bf, size); |
| } |
| |
| #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior |