author | Mikael Berthe <mikael@lilotux.net> |
Sun, 16 Feb 2020 18:54:01 +0100 | |
changeset 251 | 1c52a0eeb952 |
parent 242 | 2a9ec03fe5a1 |
child 256 | 6d9efbef00a9 |
permissions | -rw-r--r-- |
242
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// Copyright 2016 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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// +build linux |
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// +build mips mipsle |
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package unix |
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import ( |
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"syscall" |
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"unsafe" |
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) |
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func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) |
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16 |
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//sys Dup2(oldfd int, newfd int) (err error) |
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//sysnb EpollCreate(size int) (fd int, err error) |
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//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) |
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//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 |
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//sys Fchown(fd int, uid int, gid int) (err error) |
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//sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64 |
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//sysnb Getegid() (egid int) |
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//sysnb Geteuid() (euid int) |
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//sysnb Getgid() (gid int) |
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//sysnb Getuid() (uid int) |
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//sys Lchown(path string, uid int, gid int) (err error) |
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//sys Listen(s int, n int) (err error) |
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//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 |
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//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 |
251 | 31 |
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) |
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT |
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//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64 |
251 | 34 |
//sys setfsgid(gid int) (prev int, err error) |
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//sys setfsuid(uid int) (prev int, err error) |
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//sysnb Setregid(rgid int, egid int) (err error) |
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//sysnb Setresgid(rgid int, egid int, sgid int) (err error) |
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//sysnb Setresuid(ruid int, euid int, suid int) (err error) |
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//sysnb Setreuid(ruid int, euid int) (err error) |
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//sys Shutdown(fd int, how int) (err error) |
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//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) |
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//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) |
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//sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64 |
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//sys Ustat(dev int, ubuf *Ustat_t) (err error) |
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//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) |
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//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) |
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//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) |
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//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) |
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49 |
//sysnb getgroups(n int, list *_Gid_t) (nn int, err error) |
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//sysnb setgroups(n int, list *_Gid_t) (err error) |
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//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) |
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//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) |
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53 |
//sysnb socket(domain int, typ int, proto int) (fd int, err error) |
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//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) |
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//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) |
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//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) |
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57 |
//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) |
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//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) |
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59 |
//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) |
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//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) |
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61 |
|
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62 |
//sysnb InotifyInit() (fd int, err error) |
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63 |
//sys Ioperm(from int, num int, on int) (err error) |
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//sys Iopl(level int) (err error) |
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65 |
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//sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) |
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//sysnb Gettimeofday(tv *Timeval) (err error) |
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//sysnb Time(t *Time_t) (tt Time_t, err error) |
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//sys Utime(path string, buf *Utimbuf) (err error) |
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//sys utimes(path string, times *[2]Timeval) (err error) |
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71 |
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//sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64 |
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//sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64 |
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74 |
//sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64 |
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//sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64 |
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76 |
|
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77 |
//sys Pause() (err error) |
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78 |
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79 |
func Fstatfs(fd int, buf *Statfs_t) (err error) { |
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_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) |
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81 |
if e != 0 { |
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82 |
err = errnoErr(e) |
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83 |
} |
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84 |
return |
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85 |
} |
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86 |
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87 |
func Statfs(path string, buf *Statfs_t) (err error) { |
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88 |
p, err := BytePtrFromString(path) |
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89 |
if err != nil { |
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90 |
return err |
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91 |
} |
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92 |
_, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) |
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93 |
if e != 0 { |
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94 |
err = errnoErr(e) |
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95 |
} |
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96 |
return |
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97 |
} |
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98 |
|
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99 |
func Seek(fd int, offset int64, whence int) (off int64, err error) { |
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100 |
_, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0) |
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101 |
if e != 0 { |
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102 |
err = errnoErr(e) |
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103 |
} |
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104 |
return |
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105 |
} |
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106 |
|
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107 |
func setTimespec(sec, nsec int64) Timespec { |
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108 |
return Timespec{Sec: int32(sec), Nsec: int32(nsec)} |
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109 |
} |
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110 |
|
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111 |
func setTimeval(sec, usec int64) Timeval { |
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112 |
return Timeval{Sec: int32(sec), Usec: int32(usec)} |
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|
113 |
} |
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114 |
|
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|
115 |
//sysnb pipe2(p *[2]_C_int, flags int) (err error) |
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|
116 |
|
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|
117 |
func Pipe2(p []int, flags int) (err error) { |
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|
118 |
if len(p) != 2 { |
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|
119 |
return EINVAL |
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|
120 |
} |
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121 |
var pp [2]_C_int |
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122 |
err = pipe2(&pp, flags) |
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|
123 |
p[0] = int(pp[0]) |
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124 |
p[1] = int(pp[1]) |
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|
125 |
return |
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|
126 |
} |
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127 |
|
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|
128 |
//sysnb pipe() (p1 int, p2 int, err error) |
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|
129 |
|
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|
130 |
func Pipe(p []int) (err error) { |
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|
131 |
if len(p) != 2 { |
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|
132 |
return EINVAL |
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|
133 |
} |
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|
134 |
p[0], p[1], err = pipe() |
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|
135 |
return |
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|
136 |
} |
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|
137 |
|
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|
138 |
//sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) |
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|
139 |
|
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|
140 |
func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) { |
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|
141 |
page := uintptr(offset / 4096) |
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|
142 |
if offset != int64(page)*4096 { |
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|
143 |
return 0, EINVAL |
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|
144 |
} |
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|
145 |
return mmap2(addr, length, prot, flags, fd, page) |
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|
146 |
} |
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|
147 |
|
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|
148 |
const rlimInf32 = ^uint32(0) |
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|
149 |
const rlimInf64 = ^uint64(0) |
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|
150 |
|
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|
151 |
type rlimit32 struct { |
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|
152 |
Cur uint32 |
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|
153 |
Max uint32 |
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|
154 |
} |
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|
155 |
|
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|
156 |
//sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT |
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|
157 |
|
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|
158 |
func Getrlimit(resource int, rlim *Rlimit) (err error) { |
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|
159 |
err = prlimit(0, resource, nil, rlim) |
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|
160 |
if err != ENOSYS { |
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|
161 |
return err |
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|
162 |
} |
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|
163 |
|
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|
164 |
rl := rlimit32{} |
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|
165 |
err = getrlimit(resource, &rl) |
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|
166 |
if err != nil { |
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|
167 |
return |
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|
168 |
} |
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|
169 |
|
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|
170 |
if rl.Cur == rlimInf32 { |
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|
171 |
rlim.Cur = rlimInf64 |
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|
172 |
} else { |
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|
173 |
rlim.Cur = uint64(rl.Cur) |
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|
174 |
} |
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|
175 |
|
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|
176 |
if rl.Max == rlimInf32 { |
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|
177 |
rlim.Max = rlimInf64 |
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|
178 |
} else { |
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|
179 |
rlim.Max = uint64(rl.Max) |
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|
180 |
} |
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|
181 |
return |
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changeset
|
182 |
} |
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changeset
|
183 |
|
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|
184 |
//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT |
2a9ec03fe5a1
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|
185 |
|
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|
186 |
func Setrlimit(resource int, rlim *Rlimit) (err error) { |
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|
187 |
err = prlimit(0, resource, rlim, nil) |
2a9ec03fe5a1
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|
188 |
if err != ENOSYS { |
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|
189 |
return err |
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changeset
|
190 |
} |
2a9ec03fe5a1
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changeset
|
191 |
|
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changeset
|
192 |
rl := rlimit32{} |
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changeset
|
193 |
if rlim.Cur == rlimInf64 { |
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|
194 |
rl.Cur = rlimInf32 |
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|
195 |
} else if rlim.Cur < uint64(rlimInf32) { |
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|
196 |
rl.Cur = uint32(rlim.Cur) |
2a9ec03fe5a1
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changeset
|
197 |
} else { |
2a9ec03fe5a1
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|
198 |
return EINVAL |
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changeset
|
199 |
} |
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changeset
|
200 |
if rlim.Max == rlimInf64 { |
2a9ec03fe5a1
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changeset
|
201 |
rl.Max = rlimInf32 |
2a9ec03fe5a1
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diff
changeset
|
202 |
} else if rlim.Max < uint64(rlimInf32) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
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parents:
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changeset
|
203 |
rl.Max = uint32(rlim.Max) |
2a9ec03fe5a1
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diff
changeset
|
204 |
} else { |
2a9ec03fe5a1
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parents:
diff
changeset
|
205 |
return EINVAL |
2a9ec03fe5a1
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parents:
diff
changeset
|
206 |
} |
2a9ec03fe5a1
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diff
changeset
|
207 |
|
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changeset
|
208 |
return setrlimit(resource, &rl) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
209 |
} |
2a9ec03fe5a1
Use vendoring for backward compatibility
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parents:
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changeset
|
210 |
|
2a9ec03fe5a1
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Mikael Berthe <mikael@lilotux.net>
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diff
changeset
|
211 |
func (r *PtraceRegs) PC() uint64 { return r.Epc } |
2a9ec03fe5a1
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diff
changeset
|
212 |
|
2a9ec03fe5a1
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Mikael Berthe <mikael@lilotux.net>
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changeset
|
213 |
func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc } |
2a9ec03fe5a1
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changeset
|
214 |
|
2a9ec03fe5a1
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Mikael Berthe <mikael@lilotux.net>
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diff
changeset
|
215 |
func (iov *Iovec) SetLen(length int) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
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changeset
|
216 |
iov.Len = uint32(length) |
2a9ec03fe5a1
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changeset
|
217 |
} |
2a9ec03fe5a1
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changeset
|
218 |
|
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diff
changeset
|
219 |
func (msghdr *Msghdr) SetControllen(length int) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
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changeset
|
220 |
msghdr.Controllen = uint32(length) |
2a9ec03fe5a1
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changeset
|
221 |
} |
2a9ec03fe5a1
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diff
changeset
|
222 |
|
251 | 223 |
func (msghdr *Msghdr) SetIovlen(length int) { |
224 |
msghdr.Iovlen = uint32(length) |
|
225 |
} |
|
226 |
||
242
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|
227 |
func (cmsg *Cmsghdr) SetLen(length int) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
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|
228 |
cmsg.Len = uint32(length) |
2a9ec03fe5a1
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changeset
|
229 |
} |
2a9ec03fe5a1
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changeset
|
230 |
|
2a9ec03fe5a1
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Mikael Berthe <mikael@lilotux.net>
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diff
changeset
|
231 |
//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) |
2a9ec03fe5a1
Use vendoring for backward compatibility
Mikael Berthe <mikael@lilotux.net>
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changeset
|
232 |
|
2a9ec03fe5a1
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changeset
|
233 |
func Poll(fds []PollFd, timeout int) (n int, err error) { |
2a9ec03fe5a1
Use vendoring for backward compatibility
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diff
changeset
|
234 |
if len(fds) == 0 { |
2a9ec03fe5a1
Use vendoring for backward compatibility
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diff
changeset
|
235 |
return poll(nil, 0, timeout) |
2a9ec03fe5a1
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Mikael Berthe <mikael@lilotux.net>
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diff
changeset
|
236 |
} |
2a9ec03fe5a1
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parents:
diff
changeset
|
237 |
return poll(&fds[0], len(fds), timeout) |
2a9ec03fe5a1
Use vendoring for backward compatibility
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changeset
|
238 |
} |