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i386: Add static asssert for context size

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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
This commit is contained in:
Warner Losh 2022-02-10 14:26:53 -07:00
parent 0c988f92dc
commit d4f495fbf8
1 changed files with 4 additions and 0 deletions
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4
sys/i386/i386/exec_machdep.c
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@ -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.
*