# HG changeset patch
# User bartv
# Date 1057447049 0
# Node ID c04ca65eec48ce02e82a0e187a53f9409afb556e
# Parent  3764201565e4b588ed704f9aff60e7140f4a6078
Try to resolve linking problems for C++ code built with the native
Linux tools.

diff --git a/packages/hal/synth/arch/current/ChangeLog b/packages/hal/synth/arch/current/ChangeLog
--- a/packages/hal/synth/arch/current/ChangeLog
+++ b/packages/hal/synth/arch/current/ChangeLog
@@ -1,3 +1,9 @@
+2003-07-05  Bart Veer  <bartv@ecoscentric.com>
+
+	* src/synth_entry.c:
+	Add more dummy functions to cope with dependencies introduced by
+	various versions of g++.
+
 2003-06-27  Jonathan Larmour  <jifl@eCosCentric.com>
 
 	* src/synth.ld: Synthetic linux at least needs libgcc_eh.a in the
diff --git a/packages/hal/synth/arch/current/src/synth_entry.c b/packages/hal/synth/arch/current/src/synth_entry.c
--- a/packages/hal/synth/arch/current/src/synth_entry.c
+++ b/packages/hal/synth/arch/current/src/synth_entry.c
@@ -169,6 +169,18 @@ void _linux_entry( void )
 }
 
 // ----------------------------------------------------------------------------
+// Stub functions needed for linking with various versions of gcc
+// configured for Linux rather than i386-elf.
+
+#if (__GNUC__ < 3)
+// 2.95.x libgcc.a __pure_virtual() calls __write().
+int __write(void)
+{
+    return -1;
+}
+#endif
+
+#if (__GNUC__ >= 3)
 // Versions of gcc/g++ after 3.0 (approx.), when configured for Linux
 // native development (specifically, --with-__cxa_enable), have
 // additional dependencies related to the destructors for static
@@ -187,5 +199,17 @@ void
 }
 void*   __dso_handle = (void*) &__dso_handle;
 
+// gcc 3.2.2 (approx). The libsupc++ version of the new operator pulls
+// in exception handling code, even when using the nothrow version and
+// building with -fno-exceptions. libgcc_eh.a provides the necessary
+// functions, but requires a dl_iterate_phdr() function. That is related
+// to handling dynamically loaded code so is not applicable to eCos.
+int
+dl_iterate_phdr(void* arg1, void* arg2)
+{
+    return -1;
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // End of entry.c