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| author |   Maxim Kuvyrkov <maxim@codesourcery.com> | 2009-09-23 01:22:43 +0400 |
|---|---|---|
| committer |   Geert Uytterhoeven <geert@linux-m68k.org> | 2010-02-27 18:44:10 +0100 |
| commit | 00ebfe58b002f0ff387f60c7cd23bc2b274fce1a (patch) | |
| tree | 2e88877140ddcb97cf2b5a01bbf0b3c443bf3ef9 /drivers/macintosh | |
| parent | m68knommu: NPTL support for uClinux (diff) | |
| download | linux-dev-00ebfe58b002f0ff387f60c7cd23bc2b274fce1a.tar.xz linux-dev-00ebfe58b002f0ff387f60c7cd23bc2b274fce1a.zip | |
m68k: Define sigcontext ABI of ColdFire
The following patch defines sigcontext ABI of ColdFire. Due to ISA
restrictions ColdFire needs different rt_sigreturn trampoline.
And due to ColdFire FP registers being 8-bytes instead of 12-bytes on
m68k, sigcontext and fpregset structures should be updated.
Regarding the sc_fpstate[16+6*8] field, it would've been enough 16
bytes to store ColdFire's FP state. To accomodate GLIBC's libSegFault
it would'be been enough 6*8 bytes (room for the 6 non-call-clobbered
FP registers). I set it to 16+6*8 to provide some extra space for any
future changes in the ColdFire FPU.
Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'drivers/macintosh')
0 files changed, 0 insertions, 0 deletions