Unbreak amd64 FBT after r330539.
X-MFC with: r330539
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c293f08a32
commit
1aa8a926b8
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=330541
@ -34,6 +34,8 @@
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#include <sys/dtrace.h>
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#include <machine/cpufunc.h>
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#include "fbt.h"
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#define FBT_PUSHL_EBP 0x55
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@ -143,8 +145,15 @@ fbt_invop(uintptr_t addr, struct trapframe *frame, uintptr_t rval)
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void
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fbt_patch_tracepoint(fbt_probe_t *fbt, fbt_patchval_t val)
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{
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u_long cr0save;
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register_t intr;
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intr = intr_disable();
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cr0save = rcr0();
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load_cr0(cr0save & ~CR0_WP);
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*fbt->fbtp_patchpoint = val;
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load_cr0(cr0save);
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intr_restore(intr);
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}
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int
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