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merge from gcc

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DJ Delorie 2005-05-15 17:25:43 +00:00
parent 58aecb61a1
commit f13c9beaa3
3 changed files with 68 additions and 48 deletions
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6
libiberty/ChangeLog
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@ -1,3 +1,9 @@
2005-05-15 Eli Zaretskii <eliz@gnu.org>
* pexecute.txh: Enclose multi-word data types in @deftypefn in
braces. Minor wording fixes. Use --- for em-dash. Use
@enumerate in enumerated lists.
2005-05-11 Eli Zaretskii <eliz@gnu.org> 2005-05-11 Eli Zaretskii <eliz@gnu.org>
* pex-djgpp.c: Include string.h, fcntl.h, unistd.h, and * pex-djgpp.c: Include string.h, fcntl.h, unistd.h, and

6
libiberty/fopen_unlocked.c
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@ -36,7 +36,7 @@ multi-threaded locking. Otherwise do nothing.
@end deftypefn @end deftypefn
@deftypefn Extension FILE * fopen_unlocked (const char *@var{path}, const char * @var{mode}) @deftypefn Extension {FILE *} fopen_unlocked (const char *@var{path}, const char * @var{mode})
Opens and returns a @code{FILE} pointer via @code{fopen}. If the Opens and returns a @code{FILE} pointer via @code{fopen}. If the
operating system supports it, ensure that the stream is setup to avoid operating system supports it, ensure that the stream is setup to avoid
@ -45,7 +45,7 @@ unchanged.
@end deftypefn @end deftypefn
@deftypefn Extension FILE * fdopen_unlocked (int @var{fildes}, const char * @var{mode}) @deftypefn Extension {FILE *} fdopen_unlocked (int @var{fildes}, const char * @var{mode})
Opens and returns a @code{FILE} pointer via @code{fdopen}. If the Opens and returns a @code{FILE} pointer via @code{fdopen}. If the
operating system supports it, ensure that the stream is setup to avoid operating system supports it, ensure that the stream is setup to avoid
@ -54,7 +54,7 @@ unchanged.
@end deftypefn @end deftypefn
@deftypefn Extension FILE * freopen_unlocked (const char * @var{path}, const char * @var{mode}, FILE * @var{stream}) @deftypefn Extension {FILE *} freopen_unlocked (const char * @var{path}, const char * @var{mode}, FILE * @var{stream})
Opens and returns a @code{FILE} pointer via @code{freopen}. If the Opens and returns a @code{FILE} pointer via @code{freopen}. If the
operating system supports it, ensure that the stream is setup to avoid operating system supports it, ensure that the stream is setup to avoid

48
libiberty/pexecute.txh
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@ -1,4 +1,4 @@
@deftypefn Extension struct pex_obj *pex_init (int @var{flags}, const char *@var{pname}, const char *@var{tempbase}) @deftypefn Extension {struct pex_obj *} pex_init (int @var{flags}, const char *@var{pname}, const char *@var{tempbase})
Prepare to execute one or more programs, with standard output of each Prepare to execute one or more programs, with standard output of each
program fed to standard input of the next. This is a system program fed to standard input of the next. This is a system
@ -29,7 +29,7 @@ temporary files; it may be @code{NULL} to use a randomly chosen name.
@end deftypefn @end deftypefn
@deftypefn Extension const char *pex_run (struct pex_obj *@var{obj}, int @var{flags}, const char *@var{executable}, char * const *@var{argv}, const char *@var{outname}, const char *@var{errname}, int *@var{err}) @deftypefn Extension {const char *} pex_run (struct pex_obj *@var{obj}, int @var{flags}, const char *@var{executable}, char * const *@var{argv}, const char *@var{outname}, const char *@var{errname}, int *@var{err})
Execute one program in a pipeline. On success this returns Execute one program in a pipeline. On success this returns
@code{NULL}. On failure it returns an error message, a statically @code{NULL}. On failure it returns an error message, a statically
@ -46,8 +46,8 @@ allocated string.
This must be set on the last program in the pipeline. In particular, This must be set on the last program in the pipeline. In particular,
it should be set when executing a single program. The standard output it should be set when executing a single program. The standard output
of the program will be sent to @var{outname}, or, if @var{outname} is of the program will be sent to @var{outname}, or, if @var{outname} is
@code{NULL}, to the standard output of the calling program. This @code{NULL}, to the standard output of the calling program. Do @emph{not}
should not be set if you want to call @code{pex_read_output} set this bit if you want to call @code{pex_read_output}
(described below). After a call to @code{pex_run} with this bit set, (described below). After a call to @code{pex_run} with this bit set,
@var{pex_run} may no longer be called with the same @var{obj}. @var{pex_run} may no longer be called with the same @var{obj}.
@ -71,7 +71,7 @@ Send the program's standard error to standard output, if possible.
The standard input (output) of the program should be read (written) in The standard input (output) of the program should be read (written) in
binary mode rather than text mode. These flags are ignored on systems binary mode rather than text mode. These flags are ignored on systems
which do not distinguish binary mode and text mode, such as Unix. For which do not distinguish binary mode and text mode, such as Unix. For
proper behavior these flags should match appropriately--a call to proper behavior these flags should match appropriately---a call to
@code{pex_run} using @code{PEX_BINARY_OUTPUT} should be followed by a @code{pex_run} using @code{PEX_BINARY_OUTPUT} should be followed by a
call using @code{PEX_BINARY_INPUT}. call using @code{PEX_BINARY_INPUT}.
@end table @end table
@ -81,11 +81,20 @@ arguments to pass to the program; normally @code{@var{argv}[0]} will
be a copy of @var{executable}. be a copy of @var{executable}.
@var{outname} is used to set the name of the file to use for standard @var{outname} is used to set the name of the file to use for standard
output. There are two cases in which no output file will be used: 1) output. There are two cases in which no output file will be used:
@enumerate
@item
if @code{PEX_LAST} is not set in @var{flags}, and @code{PEX_USE_PIPES} if @code{PEX_LAST} is not set in @var{flags}, and @code{PEX_USE_PIPES}
was set in the call to @code{pex_init}, and the system supports pipes; was set in the call to @code{pex_init}, and the system supports pipes
2) if @code{PEX_LAST} is set in @var{flags}, and @var{outname} is
@code{NULL}. Otherwise the code will use a file to hold standard @item
if @code{PEX_LAST} is set in @var{flags}, and @var{outname} is
@code{NULL}
@end enumerate
@noindent
Otherwise the code will use a file to hold standard
output. If @code{PEX_LAST} is not set, this file is considered to be output. If @code{PEX_LAST} is not set, this file is considered to be
a temporary file, and it will be removed when no longer needed, unless a temporary file, and it will be removed when no longer needed, unless
@code{PEX_SAVE_TEMPS} was set in the call to @code{pex_init}. @code{PEX_SAVE_TEMPS} was set in the call to @code{pex_init}.
@ -93,22 +102,26 @@ a temporary file, and it will be removed when no longer needed, unless
There are two cases to consider when setting the name of the file to There are two cases to consider when setting the name of the file to
hold standard output. hold standard output.
First case: @code{PEX_SUFFIX} is set in @var{flags}. In this case @enumerate
@item
@code{PEX_SUFFIX} is set in @var{flags}. In this case
@var{outname} may not be @code{NULL}. If the @var{tempbase} parameter @var{outname} may not be @code{NULL}. If the @var{tempbase} parameter
to @code{pex_init} was not @code{NULL}, then the output file name is to @code{pex_init} was not @code{NULL}, then the output file name is
the concatenation of @var{tempbase} and @var{outname}. If the concatenation of @var{tempbase} and @var{outname}. If
@var{tempbase} was @code{NULL}, then the output file name is a random @var{tempbase} was @code{NULL}, then the output file name is a random
file name ending in @var{outname}. file name ending in @var{outname}.
Second case: @code{PEX_SUFFIX} was not set in @var{flags}. In this @item
@code{PEX_SUFFIX} was not set in @var{flags}. In this
case, if @var{outname} is not @code{NULL}, it is used as the output case, if @var{outname} is not @code{NULL}, it is used as the output
file name. If @var{outname} is @code{NULL}, and @var{tempbase} was file name. If @var{outname} is @code{NULL}, and @var{tempbase} was
not NULL, the output file name is randomly chosen using not NULL, the output file name is randomly chosen using
@var{tempbase}. Otherwise the output file name is chosen completely @var{tempbase}. Otherwise the output file name is chosen completely
at random. at random.
@end enumerate
@var{errname} is the file name to use for standard error output. If @var{errname} is the file name to use for standard error output. If
it is @code{NULL}, standard error is the same as the caller. it is @code{NULL}, standard error is the same as the caller's.
Otherwise, standard error is written to the named file. Otherwise, standard error is written to the named file.
On an error return, the code sets @code{*@var{err}} to an @code{errno} On an error return, the code sets @code{*@var{err}} to an @code{errno}
@ -116,7 +129,7 @@ value, or to 0 if there is no relevant @code{errno}.
@end deftypefn @end deftypefn
@deftypefn Extension FILE * pex_read_output (struct pex_obj *@var{obj}, int @var{binary}) @deftypefn Extension {FILE *} pex_read_output (struct pex_obj *@var{obj}, int @var{binary})
Returns a @code{FILE} pointer which may be used to read the standard Returns a @code{FILE} pointer which may be used to read the standard
output of the last program in the pipeline. When this is used, output of the last program in the pipeline. When this is used,
@ -145,7 +158,8 @@ results will be placed into @var{vector}. The results are in the
order of the calls to @code{pex_run}. Returns 0 on error, 1 on order of the calls to @code{pex_run}. Returns 0 on error, 1 on
success. success.
@code{struct pex_time} has the following fields: @code{user_seconds}, @code{struct pex_time} has the following fields of the type
@code{unsigned long}: @code{user_seconds},
@code{user_microseconds}, @code{system_seconds}, @code{user_microseconds}, @code{system_seconds},
@code{system_microseconds}. On systems which do not support reporting @code{system_microseconds}. On systems which do not support reporting
process times, all the fields will be set to @code{0}. process times, all the fields will be set to @code{0}.
@ -158,14 +172,14 @@ Clean up and free all data associated with @var{obj}.
@end deftypefn @end deftypefn
@deftypefn Extension const char *pex_one (int @var{flags}, const char *@var{executable}, char * const *@var{argv}, const char *@var{pname}, const char *@var{outname}, const char *@var{errname}, int *@var{status}, int *@var{err}) @deftypefn Extension {const char *} pex_one (int @var{flags}, const char *@var{executable}, char * const *@var{argv}, const char *@var{pname}, const char *@var{outname}, const char *@var{errname}, int *@var{status}, int *@var{err})
An interface to @code{pex_init} to permit the easy execution of a An interface to permit the easy execution of a
single program. The return value and most of the parameters are as single program. The return value and most of the parameters are as
for a call to @code{pex_run}. @var{flags} is restricted to a for a call to @code{pex_run}. @var{flags} is restricted to a
combination of @code{PEX_SEARCH}, @code{PEX_STDERR_TO_STDOUT}, and combination of @code{PEX_SEARCH}, @code{PEX_STDERR_TO_STDOUT}, and
@code{PEX_BINARY_OUTPUT}. @var{outname} is interpreted as if @code{PEX_BINARY_OUTPUT}. @var{outname} is interpreted as if
@code{PEX_LAST} were set. On a successful return, *@var{status} will @code{PEX_LAST} were set. On a successful return, @code{*@var{status}} will
be set to the exit status of the program. be set to the exit status of the program.
@end deftypefn @end deftypefn