1 | 2002-11-01 Joel Sherrill <joel@OARcorp.com> |
---|
2 | |
---|
3 | * cpu.c: Currently only the mpc8260 BSP supports interrupt nesting. |
---|
4 | NOTE: These needs to be generalized as the patch is applied to other |
---|
5 | BSPs. |
---|
6 | |
---|
7 | 2002-10-21 Ralf Corsepius <corsepiu@faw.uni-ulm.de> |
---|
8 | |
---|
9 | * .cvsignore: Reformat. |
---|
10 | Add autom4te*cache. |
---|
11 | Remove autom4te.cache. |
---|
12 | |
---|
13 | 2002-08-11 Ralf Corsepius <corsepiu@faw.uni-ulm.de> |
---|
14 | |
---|
15 | * Makefile.am: Use .$(OBJEXT) instead of .o. |
---|
16 | |
---|
17 | 2001-05-14 Till Straumann <strauman@slac.stanford.edu> |
---|
18 | |
---|
19 | * cpu.c: Per PR211 fix |
---|
20 | saving/restoring floating point context. The fpsave and fprestore |
---|
21 | routines are only used in a executing context which _is_ fp and hence |
---|
22 | has the FPU enabled. The current behavior required the FPU always to |
---|
23 | be on which is very dangerous if lazy context switching is used. |
---|
24 | [Joel Note: Some ports explicitly enabled the FPU in the FP save and |
---|
25 | restore routines to avoid this.] |
---|
26 | |
---|
27 | The patch also makes sure (on powerpc only) that the FPU is disabled |
---|
28 | for integer tasks. Note that this is crucial if deferred fp context |
---|
29 | switching is used. Otherwise, fp context corruption may go undetected! |
---|
30 | Also note that even tasks which merely push/pop FP registers to/from |
---|
31 | the stack without modifying them still MUST be FP tasks - otherwise |
---|
32 | (if lazy FP context switching is used), FP register corruption (of |
---|
33 | other, FP, tasks may occur)! |
---|
34 | |
---|
35 | Furthermore, (on PPC) by default, lazy FP context save/restore |
---|
36 | is _disabled_. |
---|
37 | |
---|
38 | 2002-04-18 Ralf Corsepius <corsepiu@faw.uni-ulm.de> |
---|
39 | |
---|
40 | * rtems/score/cpu.h: Removed. |
---|
41 | * Makefile.am: Reflect changes above. |
---|
42 | |
---|
43 | 2001-04-03 Joel Sherrill <joel@OARcorp.com> |
---|
44 | |
---|
45 | * Per PR94, all rtems/score/CPUtypes.h are named rtems/score/types.h. |
---|
46 | * rtems/score/cpu.h: Account for name change. |
---|
47 | |
---|
48 | 2002-03-27 Ralf Corsepius <corsepiu@faw.uni-ulm.de> |
---|
49 | |
---|
50 | * configure.ac: |
---|
51 | AC_INIT(package,_RTEMS_VERSION,_RTEMS_BUGS). |
---|
52 | AM_INIT_AUTOMAKE([no-define foreign 1.6]). |
---|
53 | * Makefile.am: Remove AUTOMAKE_OPTIONS. |
---|
54 | |
---|
55 | 2001-11-28 Joel Sherrill <joel@OARcorp.com>, |
---|
56 | |
---|
57 | This was tracked as PR91. |
---|
58 | * rtems/score/cpu.h: Added CPU_PROVIDES_ISR_IS_IN_PROGRESS macro which |
---|
59 | is used to specify if the port uses the standard macro for this (FALSE). |
---|
60 | A TRUE setting indicates the port provides its own implementation. |
---|
61 | * rtems/score/c_isr.inl: Deleted and contents merged into cpu.c. |
---|
62 | * cpu.c: Received contents of c_isr.inl. |
---|
63 | * Makefile.am: Deleted reference to c_isr.inl. |
---|
64 | |
---|
65 | 2001-11-26 Ralf Corsepius <corsepiu@faw.uni-ulm.de> |
---|
66 | |
---|
67 | * .cvsignore: Add aclocal.m4, autom4te.*, config.*, configure. |
---|
68 | |
---|
69 | 2001-11-21 Ralf Corsepius <corsepiu@faw.uni-ulm.de> |
---|
70 | |
---|
71 | * Makefile.am: Preinstall c_isr.inl (HACK). |
---|
72 | * ChangeLog: New file. |
---|
73 | |
---|