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| author | kib <kib@FreeBSD.org> | 2009-04-01 12:44:17 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2009-04-01 12:44:17 +0000 |
| commit | 8e7a736a8819387cb2f6d6687e3da2d80807595e (patch) | |
| tree | 1f7e29f1912bcdc8e089e40d34f2c08a99bc6150 /sys/i386/include/ucontext.h | |
| parent | 12b844219e420459e8d30f9538d9bbb17d8d324e (diff) | |
| download | FreeBSD-src-8e7a736a8819387cb2f6d6687e3da2d80807595e.zip FreeBSD-src-8e7a736a8819387cb2f6d6687e3da2d80807595e.tar.gz | |
Add all segment registers for the amd64 CPU to struct reg and mcontext.
To keep these structures ABI-compatible, half the size of r_trapno,
r_err, mc_trapno, mc_flags.
Add fsbase and gsbase to mcontext on both amd64 and i386.
Add flags to amd64 mcontext to indicate that it contains valid segments
or bases.
In collaboration with: pho
Discussed with: peter
Reviewed by: jhb
Diffstat (limited to 'sys/i386/include/ucontext.h')
| -rw-r--r-- | sys/i386/include/ucontext.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/i386/include/ucontext.h b/sys/i386/include/ucontext.h index c992495..d8657d3 100644 --- a/sys/i386/include/ucontext.h +++ b/sys/i386/include/ucontext.h @@ -72,10 +72,15 @@ typedef struct __mcontext { * See <machine/npx.h> for the internals of mc_fpstate[]. */ int mc_fpstate[128] __aligned(16); - int mc_spare2[8]; + + __register_t mc_fsbase; + __register_t mc_gsbase; + + int mc_spare2[6]; } mcontext_t; #if defined(_KERNEL) && defined(COMPAT_FREEBSD4) + struct mcontext4 { __register_t mc_onstack; /* XXX - sigcontext compat. */ __register_t mc_gs; /* machine state (struct trapframe) */ |
