Changeset 102276 in vbox

Timestamp:

Nov 23, 2023 3:41:16 PM (10 months ago)

Author:

vboxsync

Message:

IPRT/ldr: Added RTLdrLxSetSegmentSelectors. bugref:10371

Location:

trunk

Files:

• include/iprt/ldr.h (modified) (1 diff)
• include/iprt/mangling.h (modified) (1 diff)
• src/VBox/Runtime/common/ldr/ldrLX.cpp (modified) (1 diff)

trunk/include/iprt/ldr.h

@@ -1011 +1011 @@
 
 /**
+ * LX specific API for setting the selectors of a segment before getting
+ * segment bits.
+ *
+ * @returns IPRT status code.
+ * @param   hLdrMod         The module handle.
+ * @param   iSegment        The segment to set the selectors for.
+ * @param   Sel16bit        The 16-bit selector.
+ * @param   SelFlat         The flat selector.
+ */
+RTDECL(int) RTLdrLxSetSegmentSelectors(RTLDRMOD hLdrMod, uint32_t iSegment, uint16_t Sel16bit, uint16_t SelFlat);
+
+/**
  * Converts a link address to a segment:offset address.
  *

trunk/include/iprt/mangling.h

@@ -1345 +1345 @@
 # define RTLdrLoadSystem                                RT_MANGLER(RTLdrLoadSystem)
 # define RTLdrLoadSystemEx                              RT_MANGLER(RTLdrLoadSystemEx)
+# define RTLdrLxSetSegmentSelectors                     RT_MANGLER(RTLdrLxSetSegmentSelectors)
 # define RTLdrOpen                                      RT_MANGLER(RTLdrOpen)
 # define RTLdrOpenEx                                    RT_MANGLER(RTLdrOpenEx)

trunk/src/VBox/Runtime/common/ldr/ldrLX.cpp

@@ -3126 +3126 @@
 }
 
+
+RTDECL(int) RTLdrLxSetSegmentSelectors(RTLDRMOD hLdrMod, uint32_t iSegment, uint16_t Sel16bit, uint16_t SelFlat)
+{
+    AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), VERR_INVALID_HANDLE);
+    PKLDRMODLX pThis = RT_FROM_MEMBER(hLdrMod, KLDRMODLX, Core);
+    AssertReturn(pThis->Core.pOps == &s_rtldrLXOps, VERR_NOT_SUPPORTED);
+    AssertReturn(iSegment < pThis->cSegments, VERR_OUT_OF_RANGE);
+    pThis->aSegments[iSegment].Sel16bit = Sel16bit;
+    pThis->aSegments[iSegment].SelFlat  = SelFlat;
+    return VINF_SUCCESS;
+}
+