The first attempt to support the 64-bit mode had two bugs:
1. The saved general-purpose register 31 value was overwritten with the saved
link register value.
2. The link register was saved and restored using 32-bit instructions.
Use 64-bit store/load instructions to save/restore the link register. Make
sure that the general-purpose register 31 and the link register storage areas
do not overlap.
For some RTEMS multilibs, the FPU and Altivec units are disabled during
interrupt handling. Do not save and restore the corresponding registers in
this case.
* configure.host: Add support for powerpc-eabialtivec*.
* libc/include/malloc.h: Add include of <machine/malloc.h>.
* libc/include/stdlib.h: Add include of <machine/stdlib.h>.
* libc/include/machine/malloc.h: New file.
* libc/include/machine/stdlib.h: Ditto.
* libc/include/machine/setjmp.h: Add support for powerpc altivec.
* libc/machine/powerpc/Makefile.am: Add conditional objects and
sources based on configuration.
* libc/machine/powerpc/Makefile.in: Regenerated.
* libc/machine/powerpc/configure: Ditto.
* libc/machine/powerpc/configure.in: Add check for
powerpc-eabialtivec* in which case add in additional source files.
* libc/machine/powerpc/setjmp.S: Add altivec support.
* libc/machine/powerpc/vec_calloc.c: New file.
* libc/machine/powerpc/vec_free.c: Ditto.
* libc/machine/powerpc/vec_malloc.c: Ditto.
* libc/machine/powerpc/vec_mallocr.c: Ditto.
* libc/machine/powerpc/vec_realloc.c: Ditto.
* libc/machine/powerpc/machine/malloc.h: Ditto.
* libc/machine/powerpc/machine/stdlib.h: Ditto.
* libc/machine/powerpc/vfprintf.c: New file that is vfprintf.c
with added altivec format specifiers.
* libc/machine/powerpc/vfscanf.c: New file that is vfscanf.c with
added altivec format specifiers.
Sebastian Huber
Jeff Johnston
Christopher Faylor