LLVM  14.0.0git
AutoConvert.cpp
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1 //===- AutoConvert.cpp - Auto conversion between ASCII/EBCDIC -------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file contains functions used for auto conversion between
10 // ASCII/EBCDIC codepages specific to z/OS.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifdef __MVS__
15 
17 #include <fcntl.h>
18 #include <sys/stat.h>
19 
20 std::error_code llvm::disableAutoConversion(int FD) {
21  static const struct f_cnvrt Convert = {
22  SETCVTOFF, // cvtcmd
23  0, // pccsid
24  (short)FT_BINARY, // fccsid
25  };
26  if (fcntl(FD, F_CONTROL_CVT, &Convert) == -1)
27  return std::error_code(errno, std::generic_category());
28  return std::error_code();
29 }
30 
31 std::error_code llvm::enableAutoConversion(int FD) {
32  struct f_cnvrt Query = {
33  QUERYCVT, // cvtcmd
34  0, // pccsid
35  0, // fccsid
36  };
37 
38  if (fcntl(FD, F_CONTROL_CVT, &Query) == -1)
39  return std::error_code(errno, std::generic_category());
40 
41  Query.cvtcmd = SETCVTALL;
42  Query.pccsid =
43  (FD == STDIN_FILENO || FD == STDOUT_FILENO || FD == STDERR_FILENO)
44  ? 0
45  : CCSID_UTF_8;
46  // Assume untagged files to be IBM-1047 encoded.
47  Query.fccsid = (Query.fccsid == FT_UNTAGGED) ? CCSID_IBM_1047 : Query.fccsid;
48  if (fcntl(FD, F_CONTROL_CVT, &Query) == -1)
49  return std::error_code(errno, std::generic_category());
50  return std::error_code();
51 }
52 
53 std::error_code llvm::setFileTag(int FD, int CCSID, bool Text) {
54  assert((!Text || (CCSID != FT_UNTAGGED && CCSID != FT_BINARY)) &&
55  "FT_UNTAGGED and FT_BINARY are not allowed for text files");
56  struct file_tag Tag;
57  Tag.ft_ccsid = CCSID;
58  Tag.ft_txtflag = Text;
59  Tag.ft_deferred = 0;
60  Tag.ft_rsvflags = 0;
61 
62  if (fcntl(FD, F_SETTAG, &Tag) == -1)
63  return std::error_code(errno, std::generic_category());
64  return std::error_code();
65 }
66 
67 #endif // __MVS__
llvm::dwarf::Tag
Tag
Definition: Dwarf.h:104
AutoConvert.h
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
if
if(llvm_vc STREQUAL "") set(fake_version_inc "$
Definition: CMakeLists.txt:14