diff options
Diffstat (limited to 'base/prctl_helpers.cc')
| -rw-r--r-- | base/prctl_helpers.cc | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/base/prctl_helpers.cc b/base/prctl_helpers.cc index 1e0049a6..8c441758 100644 --- a/base/prctl_helpers.cc +++ b/base/prctl_helpers.cc @@ -16,21 +16,21 @@ #include "berberis/base/prctl_helpers.h" -#if defined(__BIONIC__) #include <sys/prctl.h> -#else -#include "berberis/base/macros.h" + +// These are not defined in our glibc, but are supported in kernel since 5.17 (but not necessarily +// enabled). It's always enabled in Android kernerls, but otherwise on Linux may be disabled +// depending on CONFIG_ANON_VMA_NAME boot config flag. So the caller needs to check the result to +// see if it actually worked. +#if defined(__GLIBC__) +#define PR_SET_VMA 0x53564d41 +#define PR_SET_VMA_ANON_NAME 0 #endif namespace berberis { int SetVmaAnonName(void* addr, size_t size, const char* name) { -#if defined(__BIONIC__) return prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, addr, size, name); -#else - UNUSED(addr, size, name); - return 0; -#endif } } // namespace berberis |