Re: [Tinycc-devel] [BUG] x86_64-tcc compiled by i386-tcc is wrong

[Sergey Korshunoff]

I changed defines in tcc.h like
 #define _GNU_SOURCE
 #include "config.h"

 #include <stdarg.h>
+#ifdef TCC_TARGET_X86_64
+  #undef i386
+  #undef __i386
+  #undef __i386__
+  #ifndef __x86_64__
+    #define __x86_64__
+  #endif
+#endif
+#ifdef TCC_TARGET_X86
+  #undef __x86_64__
+  #ifndef i386
+    #define i386
+    #define __i386
+    #define __i386__
+  #endif
+#endif

then preprocess a sources by i386-tcc. When i386-tcc is used to link
x86_64-tcc then result of the test program is wrong. When x86_64 is
used to link the same source then result of the test program is right.
Conclusion: crt*.o for the x86_64 possibly perform a x86_64 registers
cleaning. This registers need to be cleaned on start of the x86_64
program generated by the x86_64-tcc (independed the crt*.o used)