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use linker to align fpu state save area

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This commit is contained in:
Ben Gras
2012-04-19 15:06:47 +02:00
parent 093c949274
commit a149be43fc
11 changed files with 45 additions and 81 deletions
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6
kernel/system/do_mcontext.c
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@@ -45,8 +45,7 @@ int do_getmcontext(struct proc * caller, message * m_ptr)
/* make sure that the FPU context is saved into proc structure first */
save_fpu(rp);
mc.mc_fpu_flags = rp->p_misc_flags & MF_FPU_INITIALIZED;
memcpy(&(mc.mc_fpu_state), rp->p_fpu_state.fpu_save_area_p,
FPU_XFP_SIZE);
memcpy(&(mc.mc_fpu_state), rp->p_seg.fpu_state, FPU_XFP_SIZE);
}
#endif
@@ -84,8 +83,7 @@ int do_setmcontext(struct proc * caller, message * m_ptr)
/* Copy FPU state */
if (mc.mc_fpu_flags & MF_FPU_INITIALIZED) {
rp->p_misc_flags |= MF_FPU_INITIALIZED;
memcpy(rp->p_fpu_state.fpu_save_area_p, &(mc.mc_fpu_state),
FPU_XFP_SIZE);
memcpy(rp->p_seg.fpu_state, &(mc.mc_fpu_state), FPU_XFP_SIZE);
} else
rp->p_misc_flags &= ~MF_FPU_INITIALIZED;
/* force reloading FPU in either case */