github.com/mdaxf/iac@v0.0.0-20240519030858-58a061660378/vendor_skip/golang.org/x/sys/unix/gccgo_c.c (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build gccgo && !aix && !hurd
     6  
     7  #include <errno.h>
     8  #include <stdint.h>
     9  #include <unistd.h>
    10  
    11  #define _STRINGIFY2_(x) #x
    12  #define _STRINGIFY_(x) _STRINGIFY2_(x)
    13  #define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
    14  
    15  // Call syscall from C code because the gccgo support for calling from
    16  // Go to C does not support varargs functions.
    17  
    18  struct ret {
    19  	uintptr_t r;
    20  	uintptr_t err;
    21  };
    22  
    23  struct ret gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
    24    __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
    25  
    26  struct ret
    27  gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
    28  {
    29  	struct ret r;
    30  
    31  	errno = 0;
    32  	r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
    33  	r.err = errno;
    34  	return r;
    35  }
    36  
    37  uintptr_t gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
    38    __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
    39  
    40  uintptr_t
    41  gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
    42  {
    43  	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
    44  }