diff options
| author | Scott Wood <scottwood@freescale.com> | 2007-09-18 15:29:35 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-10-04 11:02:54 -0500 |
| commit | 5dd57a1308a7e40e04fb6ecbff170df7a0b92cd8 (patch) | |
| tree | 7766bea806c977c47624e43c1c21a2a11ff1782d /arch/powerpc/kernel/traps.c | |
| parent | c4e05bc57dd14294683cdea7fe36ce3c01f5c6ae (diff) | |
[POWERPC] 8xx: Move softemu8xx.c from arch/ppc
Previously, Soft_emulate_8xx was called with no implementation, resulting in
build failures whenever building 8xx without math emulation. The
implementation is copied from arch/ppc to resolve this issue.
However, this sort of minimal emulation is not a very good idea other than
for compatibility with existing userspaces, as it's less efficient than
soft-float and can mislead users into believing they have soft-float. Thus,
it is made a configurable option, off by default.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 5a49eabd492..2f1857c9819 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -906,7 +906,9 @@ void SoftwareEmulation(struct pt_regs *regs) { extern int do_mathemu(struct pt_regs *); extern int Soft_emulate_8xx(struct pt_regs *); +#if defined(CONFIG_MATH_EMULATION) || defined(CONFIG_8XX_MINIMAL_FPEMU) int errcode; +#endif CHECK_FULL_REGS(regs); @@ -936,7 +938,7 @@ void SoftwareEmulation(struct pt_regs *regs) return; } -#else +#elif defined(CONFIG_8XX_MINIMAL_FPEMU) errcode = Soft_emulate_8xx(regs); switch (errcode) { case 0: @@ -949,6 +951,8 @@ void SoftwareEmulation(struct pt_regs *regs) _exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip); return; } +#else + _exception(SIGILL, regs, ILL_ILLOPC, regs->nip); #endif } #endif /* CONFIG_8xx */ |