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authorDaniel Eischen <deischen@FreeBSD.org>2002-12-02 19:58:55 +0000
committerDaniel Eischen <deischen@FreeBSD.org>2002-12-02 19:58:55 +0000
commita3dca4517e9784339384538e7fa2cb5e49299224 (patch)
treec46b44c418609ede008e86880bbd07544a9f2fa9 /sys/amd64/include/ucontext.h
parent33493b18209e482d5ad58206ea870b4132d217eb (diff)
Notes
Diffstat (limited to 'sys/amd64/include/ucontext.h')
-rw-r--r--sys/amd64/include/ucontext.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/amd64/include/ucontext.h b/sys/amd64/include/ucontext.h
index ea6f0b6b1b8f..ec3e0eefaea2 100644
--- a/sys/amd64/include/ucontext.h
+++ b/sys/amd64/include/ucontext.h
@@ -38,7 +38,7 @@ typedef struct __mcontext {
* and ucontext_t at the same time.
*/
int mc_onstack; /* XXX - sigcontext compat. */
- int mc_gs; /* machine state (trapframe) */
+ int mc_gs; /* machine state (struct trapframe) */
int mc_fs;
int mc_es;
int mc_ds;
@@ -68,15 +68,17 @@ typedef struct __mcontext {
#define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */
int mc_ownedfp;
int mc_spare1[1]; /* align next field to 16 bytes */
- int mc_fpstate[128]; /* must be multiple of 16 bytes */
+ /*
+ * See <machine/npx.h> for the internals of mc_fpstate[].
+ */
+ int mc_fpstate[128] __aligned(16);
int mc_spare2[8];
} mcontext_t;
#if defined(_KERNEL) && defined(COMPAT_FREEBSD4)
-/* For 4.x binaries */
struct mcontext4 {
int mc_onstack; /* XXX - sigcontext compat. */
- int mc_gs;
+ int mc_gs; /* machine state (struct trapframe) */
int mc_fs;
int mc_es;
int mc_ds;