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19eaf54bc9
* Add missing Linux headers. Closes #9837 * Update existing headers to latest Linux. * Consolidate headers that are the same for multiple Zig target CPU architectures. For example, Linux has only an x86 directory for both x86_64 and x86 CPU architectures. Now Zig only ships an x86 directory for Linux headers, and will emit the proper corresponding -isystem flags. * tools/update-linux-headers.zig is now available for upgrading to newer Linux headers, and the update process is now documented on the wiki.
37 lines
No EOL
723 B
C
Vendored
37 lines
No EOL
723 B
C
Vendored
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _ASM_X86_SWAB_H
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#define _ASM_X86_SWAB_H
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#include <linux/types.h>
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static __inline__ __u32 __arch_swab32(__u32 val)
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{
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__asm__("bswapl %0" : "=r" (val) : "0" (val));
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return val;
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}
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#define __arch_swab32 __arch_swab32
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static __inline__ __u64 __arch_swab64(__u64 val)
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{
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#ifdef __i386__
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union {
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struct {
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__u32 a;
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__u32 b;
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} s;
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__u64 u;
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} v;
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v.u = val;
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__asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
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: "=r" (v.s.a), "=r" (v.s.b)
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: "0" (v.s.a), "1" (v.s.b));
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return v.u;
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#else /* __i386__ */
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__asm__("bswapq %0" : "=r" (val) : "0" (val));
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return val;
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#endif
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}
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#define __arch_swab64 __arch_swab64
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#endif /* _ASM_X86_SWAB_H */ |