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| author | Timon Kruiper <timonkruiper@gmail.com> | 2020-03-31 20:15:09 +0200 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2020-03-31 15:26:06 -0400 |
| commit | 9e019ed26bf2ab46040099dadaf778dec436bc4a (patch) | |
| tree | 97fbc7f93c0ddb91e84eeba4fad0fb81f6077ada /src/os.cpp | |
| parent | c7a37967340da7e21281fca09e82f8fffb3f15d8 (diff) | |
| download | zig-9e019ed26bf2ab46040099dadaf778dec436bc4a.tar.gz zig-9e019ed26bf2ab46040099dadaf778dec436bc4a.zip | |
Fix possible unaligned ptr from `getauxval`
This caused SIGILL on armv7a-linux
Diffstat (limited to 'src/os.cpp')
| -rw-r--r-- | src/os.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/os.cpp b/src/os.cpp index a1deb0f611..505063f827 100644 --- a/src/os.cpp +++ b/src/os.cpp @@ -1456,7 +1456,10 @@ static void init_rand() { memcpy(&seed, bytes, sizeof(unsigned)); srand(seed); #elif defined(ZIG_OS_LINUX) - srand(*((unsigned*)getauxval(AT_RANDOM))); + unsigned char *ptr_random = (unsigned char*)getauxval(AT_RANDOM); + unsigned seed; + memcpy(&seed, ptr_random, sizeof(seed)); + srand(seed); #else int fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC); if (fd == -1) { |