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| author | Konstantin Belousov <kib@FreeBSD.org> | 2017-02-03 12:51:40 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2017-02-03 12:51:40 +0000 |
| commit | 57f6622f92bd72f8dd00ef76ca63a9bc909d7d49 (patch) | |
| tree | 8e78ce819dead203b413f784eddbc2de25598390 /sys/i386/i386/ptrace_machdep.c | |
| parent | 5b50ed80434233154dcdf40364b76c1491e668b8 (diff) | |
| download | src-57f6622f92bd72f8dd00ef76ca63a9bc909d7d49.tar.gz src-57f6622f92bd72f8dd00ef76ca63a9bc909d7d49.zip | |
For i386, remove config options CPU_DISABLE_CMPXCHG, CPU_DISABLE_SSE
and device npx.
This means that FPU is always initialized and handled when available,
and SSE+ register file and exception are handled when available. This
makes the kernel FPU code much easier to maintain by the cost of
slight bloat for CPUs older than 25 years.
CPU_DISABLE_CMPXCHG outlived its usefulness, see the removed comment
explaining the original purpose.
Suggested by and discussed with: bde
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks
Notes
Notes:
svn path=/head/; revision=313154
Diffstat (limited to 'sys/i386/i386/ptrace_machdep.c')
| -rw-r--r-- | sys/i386/i386/ptrace_machdep.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/sys/i386/i386/ptrace_machdep.c b/sys/i386/i386/ptrace_machdep.c index 12bafe55e16c..7ab685c5ea35 100644 --- a/sys/i386/i386/ptrace_machdep.c +++ b/sys/i386/i386/ptrace_machdep.c @@ -39,11 +39,6 @@ __FBSDID("$FreeBSD$"); #include <machine/md_var.h> #include <machine/pcb.h> -#if !defined(CPU_DISABLE_SSE) && defined(I686_CPU) -#define CPU_ENABLE_SSE -#endif - -#ifdef CPU_ENABLE_SSE static int cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data) { @@ -114,12 +109,10 @@ cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data) return (error); } -#endif static int cpu_ptrace_xmm(struct thread *td, int req, void *addr, int data) { -#ifdef CPU_ENABLE_SSE struct savexmm *fpstate; int error; @@ -152,9 +145,6 @@ cpu_ptrace_xmm(struct thread *td, int req, void *addr, int data) } return (error); -#else - return (EINVAL); -#endif } int |