Date: Thu, 10 Feb 2022 21:33:57 GMT From: Warner Losh <imp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 3988ca5aabb2 - main - aarch64: Add static asssert for context size Message-ID: <202202102133.21ALXvKo083690@gitrepo.freebsd.org>
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The branch main has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=3988ca5aabb21deaeac1fdd6f3520dce2f1e1975 commit 3988ca5aabb21deaeac1fdd6f3520dce2f1e1975 Author: Warner Losh <imp@FreeBSD.org> AuthorDate: 2022-02-10 21:26:26 +0000 Commit: Warner Losh <imp@FreeBSD.org> CommitDate: 2022-02-10 21:32:20 +0000 aarch64: Add static asssert for context size Add a static assert for the siginfo{,32}_t, mcontext{,32}_t and ucontext{,32}_t sizes. These are de-facto ABI options and cannot change size ever. Reviewed by: kib, andrew, jhb Differential Revision: https://reviews.freebsd.org/D32958 --- sys/arm64/arm64/exec_machdep.c | 4 ++++ sys/arm64/arm64/freebsd32_machdep.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/sys/arm64/arm64/exec_machdep.c b/sys/arm64/arm64/exec_machdep.c index d29ddabd23bf..b60909c95945 100644 --- a/sys/arm64/arm64/exec_machdep.c +++ b/sys/arm64/arm64/exec_machdep.c @@ -60,6 +60,10 @@ __FBSDID("$FreeBSD$"); #include <machine/vfp.h> #endif +_Static_assert(sizeof(mcontext_t) == 880, "mcontext_t size incorrect"); +_Static_assert(sizeof(ucontext_t) == 960, "ucontext_t size incorrect"); +_Static_assert(sizeof(siginfo_t) == 80, "siginfo_t size incorrect"); + static void get_fpcontext(struct thread *td, mcontext_t *mcp); static void set_fpcontext(struct thread *td, mcontext_t *mcp); diff --git a/sys/arm64/arm64/freebsd32_machdep.c b/sys/arm64/arm64/freebsd32_machdep.c index c43d8f4ad8e6..98f0bf784326 100644 --- a/sys/arm64/arm64/freebsd32_machdep.c +++ b/sys/arm64/arm64/freebsd32_machdep.c @@ -48,6 +48,10 @@ __FBSDID("$FreeBSD$"); #include <vm/pmap.h> #include <vm/vm_map.h> +_Static_assert(sizeof(mcontext32_t) == 208, "mcontext32_t size incorrect"); +_Static_assert(sizeof(ucontext32_t) == 260, "ucontext32_t size incorrect"); +_Static_assert(sizeof(struct siginfo32) == 64, "struct siginfo32 size incorrect"); + extern void freebsd32_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask); /*
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