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Diffstat (limited to 'sysdeps/mach/i386/thread_state.h')
-rw-r--r--sysdeps/mach/i386/thread_state.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/sysdeps/mach/i386/thread_state.h b/sysdeps/mach/i386/thread_state.h
index 56d91dfdb7..be3c8a9cee 100644
--- a/sysdeps/mach/i386/thread_state.h
+++ b/sysdeps/mach/i386/thread_state.h
@@ -21,7 +21,10 @@
 
 #include <mach/machine/thread_status.h>
 
-#define MACHINE_THREAD_STATE_FLAVOR	i386_THREAD_STATE
+/* This lets the kernel define segments for a new thread.  */
+#define MACHINE_NEW_THREAD_STATE_FLAVOR	i386_THREAD_STATE
+/* This makes the kernel load our segments descriptors.  */
+#define MACHINE_THREAD_STATE_FLAVOR	i386_REGS_SEGS_STATE
 #define MACHINE_THREAD_STATE_COUNT	i386_THREAD_STATE_COUNT
 
 #define machine_thread_state i386_thread_state
@@ -30,6 +33,14 @@
 #define SP uesp
 #define SYSRETURN eax
 
+#define MACHINE_THREAD_STATE_FIX_NEW(ts) do { \
+	asm ("mov %%cs, %w0" : "=q" ((ts)->cs)); \
+	asm ("mov %%ds, %w0" : "=q" ((ts)->ds)); \
+	asm ("mov %%es, %w0" : "=q" ((ts)->es)); \
+	asm ("mov %%fs, %w0" : "=q" ((ts)->fs)); \
+	asm ("mov %%gs, %w0" : "=q" ((ts)->gs)); \
+} while(0)
+
 struct machine_thread_all_state
   {
     int set;			/* Mask of bits (1 << FLAVOR).  */