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| author | Richard Henderson <rth@kanga.twiddle.home> | 2004-09-20 10:55:21 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@kanga.twiddle.home> | 2004-09-20 10:55:21 -0700 |
| commit | 3b59e61496f04539a50c83b6dc98e8c498aa033f (patch) | |
| tree | ab784d9bde36e8029a249d1f95674a4e58bdbbb9 | |
| parent | ceee83c0d9fc7a525002274d730f18a6d93e1854 (diff) | |
[ALPHA] Add compile-time assert concerning rt_sigframe layout.
| -rw-r--r-- | arch/alpha/kernel/signal.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 202714c53b6e..94ff1b330ce4 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -228,6 +228,12 @@ struct rt_sigframe unsigned int retcode[3]; }; +/* If this changes, userland unwinders that Know Things about our signal + frame will break. Do not undertake lightly. It also implies an ABI + change wrt the size of siginfo_t, which may cause some pain. */ +extern char compile_time_assert + [offsetof(struct rt_sigframe, uc.uc_mcontext) == 176 ? 1 : -1]; + #define INSN_MOV_R30_R16 0x47fe0410 #define INSN_LDI_R0 0x201f0000 #define INSN_CALLSYS 0x00000083 |