Changeset 623ffdb in rtems

Timestamp:

10/20/00 13:33:28 (22 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

772f2243

Parents:

6a041407

Message:

2000-10-20 Joel Sherrill <joel@…>

• configure.in, Makefile.am: Explicitly specify whether an RTEMS_CPU_MODEL is using old or new exception processing. This is important because when building multilib, you do not know the RTEMS_CPU_MODEL. So everything built in a multilib'ed RTEMS must be independent of the exception model and allow for late binding to the exception code.

Location:

c/src/lib/libcpu/powerpc

Files:

• ChangeLog (modified) (1 diff)
• Makefile.am (modified) (1 diff)
• configure.in (modified) (1 diff)

c/src/lib/libcpu/powerpc/ChangeLog

@@ +1 @@
+2000-10-20      Joel Sherrill <joel@OARcorp.com>
+
+        * configure.in, Makefile.am: Explicitly specify whether an
+        RTEMS_CPU_MODEL is using old or new exception processing.  This
+        is important because when building multilib, you do not know 
+        the RTEMS_CPU_MODEL.  So everything built in a multilib'ed RTEMS
+        must be independent of the exception model and allow for late
+        binding to the exception code.
+
 2000-10-18        Sergei Organov <osv@javad.ru>
 

c/src/lib/libcpu/powerpc/Makefile.am

@@ -11 +11 @@
 endif
 
+## Use new or old exception processing based on the CPU
 if new_exception_processing
 EXCEPTION_SUBDIR = new_exception_processing
-else
+endif
+
+if old_exception_processing
 EXCEPTION_SUBDIR = old_exception_processing
 endif

c/src/lib/libcpu/powerpc/configure.in

@@ -35 +35 @@
 || test "$RTEMS_CPU_MODEL" = "mpc8xx" )
 
+## there are no 601 or 602 BSPs currently.  The 505 BSPs are in user land.
 AM_CONDITIONAL(new_exception_processing, \
 test "$RTEMS_CPU_MODEL" = "mpc750" || \
 test "$RTEMS_CPU_MODEL" = "mpc604")
 
+## The goal is to get rid of the old exception processing code but
+## but all BSPs in the distribution must be migrated to the new model
+## first.
+AM_CONDITIONAL(old_exception_processing, \
+test "$RTEMS_CPU_MODEL" = "ppc403" || \
+test "$RTEMS_CPU_MODEL" = "mpc505" || \
+test "$RTEMS_CPU_MODEL" = "ppc603e" || \
+test "$RTEMS_CPU_MODEL" = "mpc8xx" \
+)
+
+## test on CPU type
 AM_CONDITIONAL(mpc505, test "$RTEMS_CPU_MODEL" = "mpc505")
 AM_CONDITIONAL(mpc6xx, test "$RTEMS_CPU_MODEL" = "mpc6xx" \