Author: andrew
Date: Mon Aug 27 10:08:27 2018
New Revision: 338336
URL: https://svnweb.freebsd.org/changeset/base/338336
Log:
Use the correct register when storing the arm VFP state.
Previously we have been lucky where the state was already in r0, however
this is not guaranteed. Use the passed in register as the location to
store the upper half of the arm VFP registers rather than relying on it
being r0.
Approved by: re (kib)
Modified:
head/sys/arm/arm/vfp.c
Modified: head/sys/arm/arm/vfp.c
==============================================================================
--- head/sys/arm/arm/vfp.c Mon Aug 27 09:39:34 2018 (r338335)
+++ head/sys/arm/arm/vfp.c Mon Aug 27 10:08:27 2018 (r338336)
@@ -293,7 +293,7 @@ vfp_store(struct vfp_state *vfpsave, boolean_t disable
" .fpu vfpv3\n"
" vstmia %0!, {d0-d15}\n" /* d0-d15 */
" cmp %1, #0\n" /* -D16 or -D32? */
- " vstmiane r0!, {d16-d31}\n" /* d16-d31 */
+ " vstmiane %0!, {d16-d31}\n" /* d16-d31 */
" addeq %0, %0, #128\n" /* skip missing regs */
: "+&r" (vfpsave) : "r" (is_d32) : "cc"
);
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