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| author | Warner Losh <imp@FreeBSD.org> | 2022-02-10 21:26:53 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2022-02-10 21:32:20 +0000 |
| commit | d4f495fbf88fbc0391b221ce2315a820ad31236d (patch) | |
| tree | e9769ff88d1e8b7e0010f86e9db4509fe33ba312 | |
| parent | 0c988f92dc47091498e4aad01a8505253c8e9111 (diff) | |
| download | src-d4f495fbf88fbc0391b221ce2315a820ad31236d.tar.gz src-d4f495fbf88fbc0391b221ce2315a820ad31236d.zip | |
i386: Add static asssert for context size
Add a static assert for the siginfo_t, mcontext_t and ucontext_t
sizes. These are de-facto ABI options and cannot change size ever.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D34211
| -rw-r--r-- | sys/i386/i386/exec_machdep.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/i386/i386/exec_machdep.c b/sys/i386/i386/exec_machdep.c index 01602e43733f..0463615d96d9 100644 --- a/sys/i386/i386/exec_machdep.c +++ b/sys/i386/i386/exec_machdep.c @@ -115,6 +115,10 @@ static void freebsd4_sendsig(sig_t catcher, ksiginfo_t *, sigset_t *mask); extern struct sysentvec elf32_freebsd_sysvec; +_Static_assert(sizeof(mcontext_t) == 640, "mcontext_t size incorrect"); +_Static_assert(sizeof(ucontext_t) == 704, "ucontext_t size incorrect"); +_Static_assert(sizeof(siginfo_t) == 64, "siginfo_t size incorrect"); + /* * Send an interrupt to process. * |