Workaround for bug 3560 - [GCCE] elf2e32 puts unresolved weak function symbols in data segment.
--- a/kernel/eka/euser/epoc/arm/uc_dll.cpp Fri Aug 06 10:53:45 2010 +0100
+++ b/kernel/eka/euser/epoc/arm/uc_dll.cpp Fri Aug 13 14:17:31 2010 +0100
@@ -46,6 +46,24 @@
#elif defined(__EABI__)
+#ifdef __GCCE__
+// Workaround for bug #3560, http://developer.symbian.org/bugs/show_bug.cgi?id=3560
+static int AddressIsInCodeSegment(void *addr)
+{
+ void * code_seg_base;
+ void * code_seg_limit;
+ asm(".extern Image$$ER_RO$$Base");
+ asm(".extern Image$$ER_RO$$Limit");
+ asm("code_seg_limit:");
+ asm(".word Image$$ER_RO$$Limit");
+ asm("code_seg_base:");
+ asm(".word Image$$ER_RO$$Base");
+ asm("ldr %[result], code_seg_base" : [result] "=r" (code_seg_base));
+ asm("ldr %[result], code_seg_limit" : [result] "=r" (code_seg_limit));
+ return addr >= code_seg_base && addr < code_seg_limit;
+}
+#endif
+
void __DLL_Export_Table__(void);
void __cpp_initialize__aeabi_(void);
__WEAK__ void run_static_dtors(void);
@@ -59,8 +77,15 @@
}
else if (aReason==KModuleEntryReasonProcessDetach)
{
+#if defined(__ARMCC__)
int call_static_dtors = (int)run_static_dtors;
if (call_static_dtors) run_static_dtors();
+#elif defined(__GCCE__)
+// Workaround for bug #3560, http://developer.symbian.org/bugs/show_bug.cgi?id=3560
+ if (AddressIsInCodeSegment((void *)run_static_dtors)) run_static_dtors();
+#else
+#error What compiler?
+#endif
return KErrNone;
}
return 0;
--- a/kernel/eka/euser/epoc/arm/uc_exe.cpp Fri Aug 06 10:53:45 2010 +0100
+++ b/kernel/eka/euser/epoc/arm/uc_exe.cpp Fri Aug 13 14:17:31 2010 +0100
@@ -74,13 +74,11 @@
TInt CallThrdProcEntry(TInt (*aFn)(void*), void* aPtr, TInt aNotFirst);
-__WEAK__ void run_static_dtors(void);
+void run_static_dtors(void);
void globalDestructorFunc()
{
- int call_static_dtors = (int)run_static_dtors;
- if (call_static_dtors)
- run_static_dtors();
+ run_static_dtors();
}
void RunThread(TBool aNotFirst, SThreadCreateInfo& aInfo)
--- a/kernel/eka/kernel/arm/d_entry.cpp Fri Aug 06 10:53:45 2010 +0100
+++ b/kernel/eka/kernel/arm/d_entry.cpp Fri Aug 13 14:17:31 2010 +0100
@@ -51,6 +51,24 @@
#elif defined(__EABI__)
+#ifdef __GCCE__
+// Workaround for bug #3560, http://developer.symbian.org/bugs/show_bug.cgi?id=3560
+static int AddressIsInCodeSegment(void *addr)
+{
+ void * code_seg_base;
+ void * code_seg_limit;
+ asm(".extern Image$$ER_RO$$Base");
+ asm(".extern Image$$ER_RO$$Limit");
+ asm("code_seg_limit:");
+ asm(".word Image$$ER_RO$$Limit");
+ asm("code_seg_base:");
+ asm(".word Image$$ER_RO$$Base");
+ asm("ldr %[result], code_seg_base" : [result] "=r" (code_seg_base));
+ asm("ldr %[result], code_seg_limit" : [result] "=r" (code_seg_limit));
+ return addr >= code_seg_base && addr < code_seg_limit;
+}
+#endif
+
void __DLL_Export_Table__(void);
void __cpp_initialize__aeabi_(void);
__WEAK__ void run_static_dtors(void);
@@ -62,8 +80,15 @@
{
if (aReason==KModuleEntryReasonProcessDetach)
{
+#if defined(__ARMCC__)
int call_static_dtors = (int)run_static_dtors;
if (call_static_dtors) run_static_dtors();
+#elif defined(__GCCE__)
+// Workaround for bug #3560, http://developer.symbian.org/bugs/show_bug.cgi?id=3560
+ if (AddressIsInCodeSegment((void *)run_static_dtors)) run_static_dtors();
+#else
+#error What compiler?
+#endif
return KErrNone;
}
if (aReason==KModuleEntryReasonExtensionInit1 || aReason==KModuleEntryReasonProcessAttach)