From: Julian Seward <jseward@acm.org>
Date: Sat, 13 Jul 2002 12:27:12 +0000 (+0000)
Subject: Implement fnstenv (store FPU environment, but not regs AIUI)
X-Git-Tag: svn/VALGRIND_1_0_3~14
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f485f3c6dd723beed0be2412c86b6ce8e771d8e0;p=thirdparty%2Fvalgrind.git

Implement fnstenv (store FPU environment, but not regs AIUI)
(Jeff Epler)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@492
---

diff --git a/coregrind/vg_memory.c b/coregrind/vg_memory.c
index 4b4fe0cff5..eca0dc215d 100644
--- a/coregrind/vg_memory.c
+++ b/coregrind/vg_memory.c
@@ -1223,6 +1223,12 @@ void VGM_(fpu_write_check) ( Addr addr, Int size )
       return;
    }
 
+   if (size == 28) {
+      PROF_EVENT(89); /* XXX assign correct event number */
+      fpu_write_check_SLOWLY ( addr, 28 );
+      return;
+   }
+
    VG_(printf)("size is %d\n", size);
    VG_(panic)("vgm_fpu_write_check: unhandled size");
 #  endif
diff --git a/coregrind/vg_to_ucode.c b/coregrind/vg_to_ucode.c
index 9230236fab..e56b02cab2 100644
--- a/coregrind/vg_to_ucode.c
+++ b/coregrind/vg_to_ucode.c
@@ -2415,6 +2415,8 @@ Addr dis_fpu ( UCodeBlock* cb, UChar first_byte, Addr eip )
                return dis_fpu_mem(cb, 4, wr, eip, first_byte); 
             case 5: /* FLDCW */
                return dis_fpu_mem(cb, 2, rd, eip, first_byte); 
+            case 6: /* FNSTENV */
+               return dis_fpu_mem(cb, 28, wr, eip, first_byte);
             case 7: /* FSTCW */
                /* HACK!  FSTCW actually writes 2 bytes, not 4.  glibc
                   gets lots of moaning in __floor() if we do the right
diff --git a/vg_memory.c b/vg_memory.c
index 4b4fe0cff5..eca0dc215d 100644
--- a/vg_memory.c
+++ b/vg_memory.c
@@ -1223,6 +1223,12 @@ void VGM_(fpu_write_check) ( Addr addr, Int size )
       return;
    }
 
+   if (size == 28) {
+      PROF_EVENT(89); /* XXX assign correct event number */
+      fpu_write_check_SLOWLY ( addr, 28 );
+      return;
+   }
+
    VG_(printf)("size is %d\n", size);
    VG_(panic)("vgm_fpu_write_check: unhandled size");
 #  endif
diff --git a/vg_to_ucode.c b/vg_to_ucode.c
index 9230236fab..e56b02cab2 100644
--- a/vg_to_ucode.c
+++ b/vg_to_ucode.c
@@ -2415,6 +2415,8 @@ Addr dis_fpu ( UCodeBlock* cb, UChar first_byte, Addr eip )
                return dis_fpu_mem(cb, 4, wr, eip, first_byte); 
             case 5: /* FLDCW */
                return dis_fpu_mem(cb, 2, rd, eip, first_byte); 
+            case 6: /* FNSTENV */
+               return dis_fpu_mem(cb, 28, wr, eip, first_byte);
             case 7: /* FSTCW */
                /* HACK!  FSTCW actually writes 2 bytes, not 4.  glibc
                   gets lots of moaning in __floor() if we do the right