processor.h: save rflags

[ust.git] / include / ust / processor.h

diff --git a/include/ust/processor.h b/include/ust/processor.h
index 1eb584365e1116883c1605d3a4f9e9fb54feef1b..b9a2f64e7b5caabb9b5cefb38051e7716cb9f073 100644 (file)
--- a/include/ust/processor.h
+++ b/include/ust/processor.h
@@ -53,6 +53,7 @@ struct registers {
        unsigned long r15;
        int cs;
        int ss;
+       unsigned long rflags;
 };
 
 #define save_registers(regsptr) \
@@ -74,6 +75,9 @@ struct registers {
             "movq %%r15,%c[r15_off](%[regs])\n\t" \
             "movw %%cs,%c[cs_off](%[regs])\n\t" \
             "movw %%ss,%c[ss_off](%[regs])\n\t" \
+            /* deal with rflags */ \
+            "pushfq\n\t" /* push rflags on stack */ \
+            "popq %c[rflags_off](%[regs])\n\t" \
        : \
        : [regs] "r" (regsptr), \
          [rax_off] "i" (offsetof(struct registers, rax)), \
@@ -93,7 +97,8 @@ struct registers {
          [r14_off] "i" (offsetof(struct registers, r14)), \
          [r15_off] "i" (offsetof(struct registers, r15)), \
          [cs_off] "i" (offsetof(struct registers, cs)), \
-         [ss_off] "i" (offsetof(struct registers, ss)) \
+         [ss_off] "i" (offsetof(struct registers, ss)), \
+         [rflags_off] "i" (offsetof(struct registers, rflags)) \
        );
 
 /* Macro to insert the address of a relative jump in an assembly stub,