diff options
| author | Helge Deller <deller@gmx.de> | 2013-05-05 22:08:22 +0000 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2013-05-24 22:30:11 +0200 |
| commit | 70ef5578dd8011eeafa999a18194d9b548a4d889 (patch) | |
| tree | 9d6c403711e784ccca4a38761435424e44c27306 /lib/mpi/longlong.h | |
| parent | 17fdfd0851617b6c18c0913364caf2a54171ce85 (diff) | |
MPILIB: disable usage of floating point registers on parisc
The umul_ppmm() macro for parisc uses the xmpyu assembler statement
which does calculation via a floating point register.
But usage of floating point registers inside the Linux kernel are not
allowed and gcc will stop compilation due to the -mdisable-fpregs
compiler option.
Fix this by disabling the umul_ppmm() and udiv_qrnnd() macros. The
mpilib will then use the generic built-in implementations instead.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'lib/mpi/longlong.h')
| -rw-r--r-- | lib/mpi/longlong.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h index 095ab157a521..d411355f238e 100644 --- a/lib/mpi/longlong.h +++ b/lib/mpi/longlong.h @@ -318,7 +318,8 @@ extern UDItype __udiv_qrnnd(); "rM" ((USItype)(bh)), \ "rM" ((USItype)(al)), \ "rM" ((USItype)(bl))) -#if defined(_PA_RISC1_1) +#if 0 && defined(_PA_RISC1_1) +/* xmpyu uses floating point register which is not allowed in Linux kernel. */ #define umul_ppmm(wh, wl, u, v) \ do { \ union {UDItype __ll; \ @@ -337,7 +338,7 @@ do { \ #define UMUL_TIME 40 #define UDIV_TIME 80 #endif -#ifndef LONGLONG_STANDALONE +#if 0 /* #ifndef LONGLONG_STANDALONE */ #define udiv_qrnnd(q, r, n1, n0, d) \ do { USItype __r; \ (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \ |