gdb/gdb_wait.h - Issue 124383005: GDB 7.6.50

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Issue 124383005: GDB 7.6.50 (Closed) Base URL: http://git.chromium.org/native_client/nacl-gdb.git@upstream

Patch Set: Created 6 years, 11 months ago

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1 /* Standard wait macros.

2 Copyright (C) 2000, 2007-2012 Free Software Foundation, Inc.

3

4 This file is part of GDB.

5

6 This program is free software; you can redistribute it and/or modify

7 it under the terms of the GNU General Public License as published by

8 the Free Software Foundation; either version 3 of the License, or

9 (at your option) any later version.

10

11 This program is distributed in the hope that it will be useful,

12 but WITHOUT ANY WARRANTY; without even the implied warranty of

13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

14 GNU General Public License for more details.

15

16 You should have received a copy of the GNU General Public License

17 along with this program. If not, see <http://www.gnu.org/licenses/>. */

18

19 #ifndef GDB_WAIT_H

20 #define GDB_WAIT_H

21

22 #ifdef HAVE_SYS_WAIT_H

23 #include <sys/wait.h> /* POSIX */

24 #else

25 #ifdef HAVE_WAIT_H

26 #include <wait.h> /* legacy */

27 #endif

28 #endif

29

30 /* Define how to access the int that the wait system call stores.

31 This has been compatible in all Unix systems since time immemorial,

32 but various well-meaning people have defined various different

33 words for the same old bits in the same old int (sometimes claimed

34 to be a struct). We just know it's an int and we use these macros

35 to access the bits. */

36

37 /* The following macros are defined equivalently to their definitions

38 in POSIX.1. We fail to define WNOHANG and WUNTRACED, which POSIX.1

39 <sys/wait.h> defines, since our code does not use waitpid() (but

40 NOTE exception for GNU/Linux below). We also fail to declare

41 wait() and waitpid(). */

42

43 #ifndef WIFEXITED

44 #define WIFEXITED(w) (((w)&0377) == 0)

45 #endif

46

47 #ifndef WIFSIGNALED

48 #define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)

49 #endif

50

51 #ifndef WIFSTOPPED

52 #ifdef IBM6000

53

54 /* Unfortunately, the above comment (about being compatible in all Unix

55 systems) is not quite correct for AIX, sigh. And AIX 3.2 can generate

56 status words like 0x57c (sigtrap received after load), and gdb would

57 choke on it. */

58

59 #define WIFSTOPPED(w) ((w)&0x40)

60

61 #else

62 #define WIFSTOPPED(w) (((w)&0377) == 0177)

63 #endif

64 #endif

65

66 #ifndef WEXITSTATUS

67 #define WEXITSTATUS(w) (((w) >> 8) & 0377) /* same as WRETCODE */

68 #endif

69

70 #ifndef WTERMSIG

71 #define WTERMSIG(w) ((w) & 0177)

72 #endif

73

74 #ifndef WSTOPSIG

75 #define WSTOPSIG WEXITSTATUS

76 #endif

77

78 /* These are not defined in POSIX, but are used by our programs. */

79

80 #ifndef WSETEXIT

81 # ifdef W_EXITCODE

82 #define WSETEXIT(w,status) ((w) = W_EXITCODE(status,0))

83 # else

84 #define WSETEXIT(w,status) ((w) = (0 \| ((status) << 8)))

85 # endif

86 #endif

87

88 #ifndef WSETSTOP

89 # ifdef W_STOPCODE

90 #define WSETSTOP(w,sig) ((w) = W_STOPCODE(sig))

91 # else

92 #define WSETSTOP(w,sig) ((w) = (0177 \| ((sig) << 8)))

93 # endif

94 #endif

95

96 /* For native GNU/Linux we may use waitpid and the __WCLONE option.

97 <GRIPE> It is of course dangerous not to use the REAL header file...

98 </GRIPE>. */

99

100 /* Bits in the third argument to `waitpid'. */

101 #ifndef WNOHANG

102 #define WNOHANG 1 /* Don't block waiting. */

103 #endif

104

105 #ifndef WUNTRACED

106 #define WUNTRACED 2 /* Report status of stopped children. */

107 #endif

108

109 #ifndef __WCLONE

110 #define __WCLONE 0x80000000 /* Wait for cloned process. */

111 #endif

112

113 #endif

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