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Makefile.in (TEXIFILES): Add fnmatch.txh.

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* Makefile.in (TEXIFILES): Add fnmatch.txh.
(maint-undoc): New.
maint-tool: Add "undoc" tool.
* alloca.c, argv.c, asprintf.c, choose-temp.c, concat.c,
fdmatch.c, ffs.c, getruntime.c, insque.c, lbasename.c,
make-temp-file.c, mkstemps.c, pexecute.c, random.c, spaces.c,
strerror.s, strsignal.c, strtol.c, vasprintf.c: Add or update
documentation.
* fnmatch.txh: New.
* functions.texi: Regenerate.

From-SVN: r46274
This commit is contained in:
DJ Delorie 2001-10-15 22:50:13 -04:00 committed by DJ Delorie
parent 2d4368e6cd
commit aac04c15d7
24 changed files with 939 additions and 293 deletions
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13
libiberty/ChangeLog
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@ -1,3 +1,16 @@
2001-10-15 DJ Delorie <dj@redhat.com>
* Makefile.in (TEXIFILES): Add fnmatch.txh.
(maint-undoc): New.
maint-tool: Add "undoc" tool.
* alloca.c, argv.c, asprintf.c, choose-temp.c, concat.c,
fdmatch.c, ffs.c, getruntime.c, insque.c, lbasename.c,
make-temp-file.c, mkstemps.c, pexecute.c, random.c, spaces.c,
strerror.s, strsignal.c, strtol.c, vasprintf.c: Add or update
documentation.
* fnmatch.txh: New.
* functions.texi: Regenerate.
2001-10-10 Joseph S. Myers <jsm28@cam.ac.uk>
* bcmp.c, setenv.c: Use "nonzero" instead of "non-zero".

8
libiberty/Makefile.in
View File

@ -172,8 +172,9 @@ TEXISRC = \
$(srcdir)/functions.texi
# Additional files that have texi snippets that need to be collected
# and sorted.
TEXIFILES =
# and sorted. Some are here because the sources are imported from
# elsewhere. Others represent headers in ../include.
TEXIFILES = fnmatch.txh
libiberty.info : $(srcdir)/libiberty.texi $(TEXISRC)
$(MAKEINFO) -I$(srcdir) $(srcdir)/libiberty.texi
@ -257,6 +258,9 @@ maint-missing :
maint-buildall : $(REQUIRED_OFILES) $(CONFIGURED_OFILES)
@true
maint-undoc : $(srcdir)/functions.texi
@$(PERL) $(srcdir)/maint-tool -s $(srcdir) undoc
# Need to deal with profiled libraries, too.
# Cleaning has to be done carefully to ensure that we don't clean our SUBDIRS

2
libiberty/alloca.c
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@ -150,6 +150,8 @@ static header *last_alloca_header = NULL; /* -> last alloca header. */
caller, but that method cannot be made to work for some
implementations of C, for example under Gould's UTX/32. */
/* @undocumented C_alloca */
PTR
C_alloca (size)
size_t size;

108
libiberty/argv.c
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@ -62,26 +62,15 @@ extern char *strdup (); /* Duplicate a string */
/*
NAME
@deftypefn Extension char** dupargv (char **@var{vector})
dupargv -- duplicate an argument vector
Duplicate an argument vector. Simply scans through @var{vector},
duplicating each argument until the terminating @code{NULL} is found.
Returns a pointer to the argument vector if successful. Returns
@code{NULL} if there is insufficient memory to complete building the
argument vector.
SYNOPSIS
char **dupargv (vector)
char **vector;
DESCRIPTION
Duplicate an argument vector. Simply scans through the
vector, duplicating each argument until the
terminating NULL is found.
RETURNS
Returns a pointer to the argument vector if
successful. Returns NULL if there is insufficient memory to
complete building the argument vector.
@end deftypefn
*/
@ -119,24 +108,14 @@ dupargv (argv)
/*
NAME
@deftypefn Extension void freeargv (char **@var{vector})
freeargv -- free an argument vector
Free an argument vector that was built using @code{buildargv}. Simply
scans through @var{vector}, freeing the memory for each argument until
the terminating @code{NULL} is found, and then frees @var{vector}
itself.
SYNOPSIS
void freeargv (vector)
char **vector;
DESCRIPTION
Free an argument vector that was built using buildargv. Simply scans
through the vector, freeing the memory for each argument until the
terminating NULL is found, and then frees the vector itself.
RETURNS
No value.
@end deftypefn
*/
@ -157,49 +136,42 @@ char **vector;
/*
NAME
@deftypefn Extension char** buildargv (char *@var{sp})
buildargv -- build an argument vector from a string
Given a pointer to a string, parse the string extracting fields
separated by whitespace and optionally enclosed within either single
or double quotes (which are stripped off), and build a vector of
pointers to copies of the string for each field. The input string
remains unchanged. The last element of the vector is followed by a
@code{NULL} element.
SYNOPSIS
All of the memory for the pointer array and copies of the string
is obtained from @code{malloc}. All of the memory can be returned to the
system with the single function call @code{freeargv}, which takes the
returned result of @code{buildargv}, as it's argument.
char **buildargv (sp)
char *sp;
Returns a pointer to the argument vector if successful. Returns
@code{NULL} if @var{sp} is @code{NULL} or if there is insufficient
memory to complete building the argument vector.
DESCRIPTION
If the input is a null string (as opposed to a @code{NULL} pointer),
then buildarg returns an argument vector that has one arg, a null
string.
Given a pointer to a string, parse the string extracting fields
separated by whitespace and optionally enclosed within either single
or double quotes (which are stripped off), and build a vector of
pointers to copies of the string for each field. The input string
remains unchanged.
@end deftypefn
All of the memory for the pointer array and copies of the string
is obtained from malloc. All of the memory can be returned to the
system with the single function call freeargv, which takes the
returned result of buildargv, as it's argument.
The memory for the argv array is dynamically expanded as necessary.
The memory for the argv array is dynamically expanded as necessary.
In order to provide a working buffer for extracting arguments into,
with appropriate stripping of quotes and translation of backslash
sequences, we allocate a working buffer at least as long as the input
string. This ensures that we always have enough space in which to
work, since the extracted arg is never larger than the input string.
RETURNS
The argument vector is always kept terminated with a @code{NULL} arg
pointer, so it can be passed to @code{freeargv} at any time, or
returned, as appropriate.
Returns a pointer to the argument vector if successful. Returns NULL
if the input string pointer is NULL or if there is insufficient
memory to complete building the argument vector.
NOTES
In order to provide a working buffer for extracting arguments into,
with appropriate stripping of quotes and translation of backslash
sequences, we allocate a working buffer at least as long as the input
string. This ensures that we always have enough space in which to
work, since the extracted arg is never larger than the input string.
If the input is a null string (as opposed to a NULL pointer), then
buildarg returns an argv that has one arg, a null string.
Argv is always kept terminated with a NULL arg pointer, so it can
be passed to freeargv at any time, or returned, as appropriate.
*/
char **buildargv (input)

16
libiberty/asprintf.c
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@ -28,6 +28,22 @@ Boston, MA 02111-1307, USA. */
#include <varargs.h>
#endif
/*
@deftypefn Extension int asprintf (char **@var{resptr}, char *@var{format}, ...)
Like @code{sprintf}, but instead of passing a pointer to a buffer, you
pass a pointer to a pointer. This function will compute the size of
the buffer needed, allocate memory with @code{malloc}, and store a
pointer to the allocated memory in @code{*@var{resptr}}. The value
returned is the same as @code{sprintf} would return. If memory could
not be allocated, zero is returned and @code{NULL} is stored in
@code{*@var{resptr}}.
@end deftypefn
*/
int
asprintf VPARAMS ((char **buf, const char *fmt, ...))
{

20
libiberty/choose-temp.c
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@ -37,13 +37,21 @@ extern char *choose_tmpdir PARAMS ((void));
#define TEMP_FILE "ccXXXXXX"
#define TEMP_FILE_LEN (sizeof(TEMP_FILE) - 1)
/* Return a prefix for temporary file names or NULL if unable to find one.
The current directory is chosen if all else fails so the program is
exited if a temporary directory can't be found (mktemp fails).
The buffer for the result is obtained with xmalloc.
/*
This function is provided for backwards compatability only. It use
is not recommended. */
@deftypefn Extension char* choose_temp_base ()
Return a prefix for temporary file names or @code{NULL} if unable to
find one. The current directory is chosen if all else fails so the
program is exited if a temporary directory can't be found (@code{mktemp}
fails). The buffer for the result is obtained with @code{xmalloc}.
This function is provided for backwards compatability only. Its use is
not recommended.
@end deftypefn
*/
char *
choose_temp_base ()

46
libiberty/concat.c
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@ -21,24 +21,14 @@ Boston, MA 02111-1307, USA. */
/*
NAME
@deftypefn Extension char* concat (char *@var{s1}, char *@var{s2}, ..., @code{NULL})
concat -- concatenate a variable number of strings
Concatenate zero or more of strings and return the result in freshly
xmalloc'd memory. Returns @code{NULL} if insufficient memory is
available. The argument list is terminated by the first @code{NULL}
pointer encountered. Pointers to empty strings are ignored.
SYNOPSIS
#include <varargs.h>
char *concat (s1, s2, s3, ..., NULL)
DESCRIPTION
Concatenate a variable number of strings and return the result
in freshly malloc'd memory.
Returns NULL if insufficient memory is available. The argument
list is terminated by the first NULL pointer encountered. Pointers
to empty strings are ignored.
@end deftypefn
NOTES
@ -50,6 +40,7 @@ NOTES
deal with low memory situations itself, it should supply an xmalloc
that just directly invokes malloc and blindly returns whatever
malloc returns.
*/
@ -114,6 +105,8 @@ vconcat_copy (dst, first, args)
return dst;
}
/* @undocumented concat_length */
unsigned long
concat_length VPARAMS ((const char *first, ...))
{
@ -127,6 +120,8 @@ concat_length VPARAMS ((const char *first, ...))
return length;
}
/* @undocumented concat_copy */
char *
concat_copy VPARAMS ((char *dst, const char *first, ...))
{
@ -144,6 +139,8 @@ concat_copy VPARAMS ((char *dst, const char *first, ...))
char *libiberty_concat_ptr;
/* @undocumented concat_copy2 */
char *
concat_copy2 VPARAMS ((const char *first, ...))
{
@ -175,6 +172,23 @@ concat VPARAMS ((const char *first, ...))
return newstr;
}
/*
@deftypefn Extension char* reconcat (char *@var{optr}, char *@var{s1}, ..., @code{NULL})
Same as @code{concat}, except that if @var{optr} is not @code{NULL} it
is freed after the string is created. This is intended to be useful
when you're extending an existing string or building up a string in a
loop:
@example
str = reconcat (str, "pre-", str, NULL);
@end example
@end deftypefn
*/
char *
reconcat VPARAMS ((char *optr, const char *first, ...))
{

28
libiberty/fdmatch.c
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@ -20,25 +20,19 @@ Boston, MA 02111-1307, USA. */
/*
NAME
@deftypefn Extension int fdmatch (int @var{fd1}, int @var{fd2})
fdmatch -- see if two file descriptors refer to same file
Check to see if two open file descriptors refer to the same file.
This is useful, for example, when we have an open file descriptor for
an unnamed file, and the name of a file that we believe to correspond
to that fd. This can happen when we are exec'd with an already open
file (@code{stdout} for example) or from the SVR4 @file{/proc} calls
that return open file descriptors for mapped address spaces. All we
have to do is open the file by name and check the two file descriptors
for a match, which is done by comparing major and minor device numbers
and inode numbers.
SYNOPSIS
int fdmatch (int fd1, int fd2)
DESCRIPTION
Check to see if two open file descriptors refer to the same file.
This is useful, for example, when we have an open file descriptor
for an unnamed file, and the name of a file that we believe to
correspond to that fd. This can happen when we are exec'd with
an already open file (stdout for example) or from the SVR4 /proc
calls that return open file descriptors for mapped address spaces.
All we have to do is open the file by name and check the two file
descriptors for a match, which is done by comparing major&minor
device numbers and inode numbers.
@end deftypefn
BUGS

12
libiberty/ffs.c
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@ -1,14 +1,12 @@
/* ffs -- Find the first bit set in the parameter
NAME
ffs -- Find the first bit set in the parameter
@deftypefn Supplemental int ffs (int @var{valu})
SYNOPSIS
int ffs (int valu)
Find the first (least significant) bit set in @var{valu}. Bits are
numbered from right to left, starting with bit 1 (corresponding to the
value 1). If @var{valu} is zero, zero is returned.
DESCRIPTION
Find the first bit set in the parameter. Bits are numbered from
right to left, starting with bit 1.
@end deftypefn
*/

48
libiberty/fnmatch.txh Normal file
View File

@ -0,0 +1,48 @@
@deftypefn Replacement int fnmatch (const char *@var{pattern}, const char *@var{string}, int @var{flags})
Matches @var{string} against @var{pattern}, returning zero if it
matches, @code{FNM_NOMATCH} if not. @var{pattern} may contain the
wildcards @code{?} to match any one character, @code{*} to match any
zero or more characters, or a set of alternate characters in square
brackets, like @samp{[a-gt8]}, which match one character (@code{a}
through @code{g}, or @code{t}, or @code{8}, in this example) if that one
character is in the set. A set may be inverted (i.e. match anything
except what's in the set) by giving @code{^} or @code{!} as the first
character in the set. To include those characters in the set, list them
as anything other than the first character of the set. To include a
dash in the set, list it last in the set. A backslash character makes
the following character not special, so for example you could match
against a literal asterisk with @samp{\*}. To match a literal
backslash, use @samp{\\}.
@code{flags} controls various aspects of the matching process, and is a
boolean OR of zero or more of the following values (defined in
@code{<fnmatch.h>}:
@table @code
@item FNM_PATHNAME
@itemx FNM_FILE_NAME
@var{string} is assumed to be a path name. No wildcard will ever match
@code{/}.
@item FNM_NOESCAPE
Do not interpret backslashes as quoting the following special character.
@item FNM_PERIOD
A leading period (at the beginning of @var{string}, or if
@code{FNM_PATHNAME} after a slash) is not matched by @code{*} or
@code{?} but must be matched explicitly.
@item FNM_LEADING_DIR
Means that @var{string} also matches @var{pattern} if some initial part
of @var{string} matches, and is followed by @code{/} and zero or more
characters. For example, @samp{foo*} would match either @samp{foobar}
or @samp{foobar/grill}.
@item FNM_CASEFOLD
Ignores case when performing the comparison.
@end table
@end deftypefn

435
libiberty/functions.texi
View File

@ -21,6 +21,19 @@ the possibility of a GCC built-in function.
@end deftypefn
@c asprintf.c:33
@deftypefn Extension int asprintf (char **@var{resptr}, char *@var{format}, ...)
Like @code{sprintf}, but instead of passing a pointer to a buffer, you
pass a pointer to a pointer. This function will compute the size of
the buffer needed, allocate memory with @code{malloc}, and store a
pointer to the allocated memory in @code{*@var{resptr}}. The value
returned is the same as @code{sprintf} would return. If memory could
not be allocated, zero is returned and @code{NULL} is stored in
@code{*@var{resptr}}.
@end deftypefn
@c atexit.c:6
@deftypefn Supplemental int atexit (void (*@var{f})())
@ -69,6 +82,31 @@ is respectively less than, matching, or greater than the array member.
@end deftypefn
@c argv.c:139
@deftypefn Extension char** buildargv (char *@var{sp})
Given a pointer to a string, parse the string extracting fields
separated by whitespace and optionally enclosed within either single
or double quotes (which are stripped off), and build a vector of
pointers to copies of the string for each field. The input string
remains unchanged. The last element of the vector is followed by a
@code{NULL} element.
All of the memory for the pointer array and copies of the string
is obtained from @code{malloc}. All of the memory can be returned to the
system with the single function call @code{freeargv}, which takes the
returned result of @code{buildargv}, as it's argument.
Returns a pointer to the argument vector if successful. Returns
@code{NULL} if @var{sp} is @code{NULL} or if there is insufficient
memory to complete building the argument vector.
If the input is a null string (as opposed to a @code{NULL} pointer),
then buildarg returns an argument vector that has one arg, a null
string.
@end deftypefn
@c bzero.c:6
@deftypefn Supplemental void bzero (char *@var{mem}, int @var{count})
@ -85,6 +123,27 @@ Uses @code{malloc} to allocate storage for @var{nelem} objects of
@end deftypefn
@c choose-temp.c:42
@deftypefn Extension char* choose_temp_base ()
Return a prefix for temporary file names or @code{NULL} if unable to
find one. The current directory is chosen if all else fails so the
program is exited if a temporary directory can't be found (@code{mktemp}
fails). The buffer for the result is obtained with @code{xmalloc}.
This function is provided for backwards compatability only. Its use is
not recommended.
@end deftypefn
@c make-temp-file.c:88
@deftypefn Replacement char* choose_tmpdir ()
Returns a pointer to a directory path suitable for creating temporary
files in.
@end deftypefn
@c clock.c:27
@deftypefn Supplemental long clock (void)
@ -94,8 +153,29 @@ number of seconds used.
@end deftypefn
@c concat.c:24
@deftypefn Extension char* concat (char *@var{s1}, char *@var{s2}, ..., @code{NULL})
Concatenate zero or more of strings and return the result in freshly
xmalloc'd memory. Returns @code{NULL} if insufficient memory is
available. The argument list is terminated by the first @code{NULL}
pointer encountered. Pointers to empty strings are ignored.
@end deftypefn
@c argv.c:65
@deftypefn Extension char** dupargv (char **@var{vector})
Duplicate an argument vector. Simply scans through @var{vector},
duplicating each argument until the terminating @code{NULL} is found.
Returns a pointer to the argument vector if successful. Returns
@code{NULL} if there is insufficient memory to complete building the
argument vector.
@end deftypefn
@c strerror.c:566
@deftypefn Replacement int errno_max (void)
@deftypefn Extension int errno_max (void)
Returns the maximum @code{errno} value for which a corresponding
symbolic name or message is available. Note that in the case where we
@ -112,6 +192,99 @@ symbolic name or message.
@end deftypefn
@c fdmatch.c:23
@deftypefn Extension int fdmatch (int @var{fd1}, int @var{fd2})
Check to see if two open file descriptors refer to the same file.
This is useful, for example, when we have an open file descriptor for
an unnamed file, and the name of a file that we believe to correspond
to that fd. This can happen when we are exec'd with an already open
file (@code{stdout} for example) or from the SVR4 @file{/proc} calls
that return open file descriptors for mapped address spaces. All we
have to do is open the file by name and check the two file descriptors
for a match, which is done by comparing major and minor device numbers
and inode numbers.
@end deftypefn
@c ffs.c:3
@deftypefn Supplemental int ffs (int @var{valu})
Find the first (least significant) bit set in @var{valu}. Bits are
numbered from right to left, starting with bit 1 (corresponding to the
value 1). If @var{valu} is zero, zero is returned.
@end deftypefn
@c fnmatch.txh:1
@deftypefn Replacement int fnmatch (const char *@var{pattern}, const char *@var{string}, int @var{flags})
Matches @var{string} against @var{pattern}, returning zero if it
matches, @code{FNM_NOMATCH} if not. @var{pattern} may contain the
wildcards @code{?} to match any one character, @code{*} to match any
zero or more characters, or a set of alternate characters in square
brackets, like @samp{[a-gt8]}, which match one character (@code{a}
through @code{g}, or @code{t}, or @code{8}, in this example) if that one
character is in the set. A set may be inverted (i.e. match anything
except what's in the set) by giving @code{^} or @code{!} as the first
character in the set. To include those characters in the set, list them
as anything other than the first character of the set. To include a
dash in the set, list it last in the set. A backslash character makes
the following character not special, so for example you could match
against a literal asterisk with @samp{\*}. To match a literal
backslash, use @samp{\\}.
@code{flags} controls various aspects of the matching process, and is a
boolean OR of zero or more of the following values (defined in
@code{<fnmatch.h>}:
@table @code
@item FNM_PATHNAME
@itemx FNM_FILE_NAME
@var{string} is assumed to be a path name. No wildcard will ever match
@code{/}.
@item FNM_NOESCAPE
Do not interpret backslashes as quoting the following special character.
@item FNM_PERIOD
A leading period (at the beginning of @var{string}, or if
@code{FNM_PATHNAME} after a slash) is not matched by @code{*} or
@code{?} but must be matched explicitly.
@item FNM_LEADING_DIR
Means that @var{string} also matches @var{pattern} if some initial part
of @var{string} matches, and is followed by @code{/} and zero or more
characters. For example, @samp{foo*} would match either @samp{foobar}
or @samp{foobar/grill}.
@item FNM_CASEFOLD
Ignores case when performing the comparison.
@end table
@end deftypefn
@c argv.c:111
@deftypefn Extension void freeargv (char **@var{vector})
Free an argument vector that was built using @code{buildargv}. Simply
scans through @var{vector}, freeing the memory for each argument until
the terminating @code{NULL} is found, and then frees @var{vector}
itself.
@end deftypefn
@c getruntime.c:78
@deftypefn Replacement long get_run_time ()
Returns the time used so far, in microseconds. If possible, this is
the time used by this process, else it is the elapsed time since the
process started.
@end deftypefn
@c getcwd.c:6
@deftypefn Supplemental char* getcwd (char *@var{pathname}, int @var{len})
@ -153,6 +326,52 @@ deprecated in new programs in favor of @code{strchr}.
@end deftypefn
@c insque.c:6
@deftypefn Supplemental void insque (struct qelem *@var{elem}, struct qelem *@var{pred})
@deftypefnx Supplemental void remque (struct qelem *@var{elem})
Routines to manipulate queues built from doubly linked lists. The
@code{insque} routine inserts @var{elem} in the queue immediately
after @var{pred}. The @code{remque} routine removes @var{elem} from
its containing queue. These routines expect to be passed pointers to
structures which have as their first members a forward pointer and a
back pointer, like this prototype (although no prototype is provided):
@example
struct qelem @{
struct qelem *q_forw;
struct qelem *q_back;
char q_data[];
@};
@end example
@end deftypefn
@c lbasename.c:23
@deftypefn Replacement {const char*} lbasename (const char *@var{name})
Given a pointer to a string containing a typical pathname
(@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the
last component of the pathname (@samp{ls.c} in this case). The
returned pointer is guaranteed to lie within the original
string. This latter fact is not true of many vendor C
libraries, which return special strings or modify the passed
strings for particular input.
In particular, the empty string returns the same empty string,
and a path ending in @code{/} returns the empty string after it.
@end deftypefn
@c make-temp-file.c:138
@deftypefn Replacement char* make_temp_file (const char *@var{suffix})
Return a temporary file name (as a string) or @code{NULL} if unable to
create one. @var{suffix} is a suffix to append to the file name. The
string is malloced, and the temporary file has been created.
@end deftypefn
@c memchr.c:3
@deftypefn Supplemental void* memchr (const void *@var{s}, int @var{c}, size_t @var{n})
@ -201,6 +420,71 @@ Sets the first @var{count} bytes of @var{s} to the constant byte
@end deftypefn
@c mkstemps.c:54
@deftypefn Replacement int mkstemps (char *@var{template}, int @var{suffix_len})
Generate a unique temporary file name from @var{template}.
@var{template} has the form:
@example
<path>/ccXXXXXX<suffix>
@end example
@var{suffix_len} tells us how long <suffix> is (it can be zero
length). The last six characters of @var{template} before <suffix>
must be @code{XXXXXX}; they are replaced with a string that makes the
filename unique. Returns a file descriptor open on the file for
reading and writing.
@end deftypefn
@c pexecute.c:67
@deftypefn Extension int pexecute (const char *@var{program}, char * const *@var{argv}, const char *@var{this_pname}, const char *@var{temp_base}, char **@var{errmsg_fmt}, char **@var{errmsg_arg}, int flags)
Executes a program.
@var{program} and @var{argv} are the arguments to
@code{execv}/@code{execvp}.
@var{this_pname} is name of the calling program (i.e. @code{argv[0]}).
@var{temp_base} is the path name, sans suffix, of a temporary file to
use if needed. This is currently only needed for MS-DOS ports that
don't use @code{go32} (do any still exist?). Ports that don't need it
can pass @code{NULL}.
(@var{flags} & @code{PEXECUTE_SEARCH}) is non-zero if @code{$PATH} should be searched
(??? It's not clear that GCC passes this flag correctly). (@var{flags} &
@code{PEXECUTE_FIRST}) is nonzero for the first process in chain.
(@var{flags} & @code{PEXECUTE_FIRST}) is nonzero for the last process
in chain. The first/last flags could be simplified to only mark the
last of a chain of processes but that requires the caller to always
mark the last one (and not give up early if some error occurs).
It's more robust to require the caller to mark both ends of the chain.
The result is the pid on systems like Unix where we
@code{fork}/@code{exec} and on systems like WIN32 and OS/2 where we
use @code{spawn}. It is up to the caller to wait for the child.
The result is the WEXITSTATUS on systems like MS-DOS where we
@code{spawn} and wait for the child here.
Upon failure, @var{errmsg_fmt} and @var{errmsg_arg} are set to the
text of the error message with an optional argument (if not needed,
@var{errmsg_arg} is set to @code{NULL}), and -1 is returned.
@code{errno} is available to the caller to use.
@end deftypefn
@c strsignal.c:547
@deftypefn Supplemental void psignal (unsigned @var{signo}, char *@var{message})
Print @var{message} to the standard error, followed by a colon,
followed by the description of the signal specified by @var{signo},
followed by a newline.
@end deftypefn
@c putenv.c:21
@deftypefn Supplemental int putenv (const char *@var{string})
@ -211,6 +495,53 @@ name is unset/removed.
@end deftypefn
@c pexecute.c:104
@deftypefn Extension int pwait (int @var{pid}, int *@var{status}, int @var{flags})
Waits for a program started by @code{pexecute} to finish.
@var{pid} is the process id of the task to wait for. @var{status} is
the `status' argument to wait. @var{flags} is currently unused (allows
future enhancement without breaking upward compatibility). Pass 0 for now.
The result is the pid of the child reaped, or -1 for failure
(@code{errno} says why).
On systems that don't support waiting for a particular child, @var{pid} is
ignored. On systems like MS-DOS that don't really multitask @code{pwait}
is just a mechanism to provide a consistent interface for the caller.
@end deftypefn
@c random.c:39
@deftypefn Supplement {long int} random ()
@deftypefnx Supplement void srandom (unsigned int @var{seed})
@deftypefnx Supplement void* initstate (unsigned int @var{seed}, void *@var{arg_state}, unsigned long @var{n})
@deftypefnx Supplement void* setstate (void *@var{arg_state})
Random number functions. @code{random} returns a random number in the
range @code{0..LONG_MAX}. @code{srandom} initializes the random
number generator to some starting point determined by @var{seed}
(else, the values returned by @code{random} are always the same for each
run of the program). @code{initstate} and @code{setstate} allow fine-grain
control over the state of the random number generator.
@end deftypefn
@c concat.c:177
@deftypefn Extension char* reconcat (char *@var{optr}, char *@var{s1}, ..., @code{NULL})
Same as @code{concat}, except that if @var{optr} is not @code{NULL} it
is freed after the string is created. This is intended to be useful
when you're extending an existing string or building up a string in a
loop:
@example
str = reconcat (str, "pre-", str, NULL);
@end example
@end deftypefn
@c rename.c:6
@deftypefn Supplemental int rename (const char *@var{old}, const char *@var{new})
@ -240,6 +571,24 @@ environment. This implementation is not safe for multithreaded code.
@end deftypefn
@c strsignal.c:353
@deftypefn Extension int signo_max ()
Returns the maximum signal value for which a corresponding symbolic
name or message is available. Note that in the case where we use the
@code{sys_siglist} supplied by the system, it is possible for there to
be more symbolic names than messages, or vice versa. In fact, the
manual page for @code{psignal(3b)} explicitly warns that one should
check the size of the table (@code{NSIG}) before indexing it, since
new signal codes may be added to the system before they are added to
the table. Thus @code{NSIG} might be smaller than value implied by
the largest signo value defined in @code{<signal.h>}.
We return the maximum value that can be used to obtain a meaningful
symbolic name or message.
@end deftypefn
@c sigsetmask.c:8
@deftypefn Supplemental int sigsetmask (int @var{set})
@ -249,6 +598,15 @@ be the value @code{1}).
@end deftypefn
@c spaces.c:22
@deftypefn Extension char* spaces (int @var{count})
Returns a pointer to a memory region filled with the specified
number of spaces and null terminated. The returned pointer is
valid until at least the next call.
@end deftypefn
@c strcasecmp.c:15
@deftypefn Supplemental int strcasecmp (const char *@var{s1}, const char *@var{s2})
@ -274,7 +632,7 @@ Returns a pointer to a copy of @var{s} in memory obtained from
@end deftypefn
@c strerror.c:670
@deftypefn Replacement const char* strerrno (int @var{errnum})
@deftypefn Replacement {const char*} strerrno (int @var{errnum})
Given an error number returned from a system call (typically returned
in @code{errno}), returns a pointer to a string containing the
@ -282,7 +640,7 @@ symbolic name of that error number, as found in @code{<errno.h>}.
If the supplied error number is within the valid range of indices for
symbolic names, but no name is available for the particular error
number, then returns the string @samp{"Error @var{num}"}, where @var{num}
number, then returns the string @samp{Error @var{num}}, where @var{num}
is the error number.
If the supplied error number is not within the range of valid
@ -294,7 +652,7 @@ valid until the next call to @code{strerrno}.
@end deftypefn
@c strerror.c:602
@deftypefn Replacement char* strerror (int @var{errnoval})
@deftypefn Supplemental char* strerror (int @var{errnoval})
Maps an @code{errno} number to an error message string, the contents
of which are implementation defined. On systems which have the
@ -303,7 +661,7 @@ strings will be the same as the ones used by @code{perror}.
If the supplied error number is within the valid range of indices for
the @code{sys_errlist}, but no message is available for the particular
error number, then returns the string @samp{"Error @var{num}"}, where
error number, then returns the string @samp{Error @var{num}}, where
@var{num} is the error number.
If the supplied error number is not a valid index into
@ -338,6 +696,46 @@ null character, the results are undefined.
@end deftypefn
@c strsignal.c:388
@deftypefn Supplemental {const char *} strsignal (int @var{signo})
Maps an signal number to an signal message string, the contents of
which are implementation defined. On systems which have the external
variable @code{sys_siglist}, these strings will be the same as the
ones used by @code{psignal()}.
If the supplied signal number is within the valid range of indices for
the @code{sys_siglist}, but no message is available for the particular
signal number, then returns the string @samp{Signal @var{num}}, where
@var{num} is the signal number.
If the supplied signal number is not a valid index into
@code{sys_siglist}, returns @code{NULL}.
The returned string is only guaranteed to be valid only until the next
call to @code{strsignal}.
@end deftypefn
@c strsignal.c:452
@deftypefn Extension {const char*} strsigno (int @var{signo})
Given an signal number, returns a pointer to a string containing the
symbolic name of that signal number, as found in @code{<signal.h>}.
If the supplied signal number is within the valid range of indices for
symbolic names, but no name is available for the particular signal
number, then returns the string @samp{Signal @var{num}}, where
@var{num} is the signal number.
If the supplied signal number is not within the range of valid
indices, then returns @code{NULL}.
The contents of the location pointed to are only guaranteed to be
valid until the next call to @code{strsigno}.
@end deftypefn
@c strstr.c:6
@deftypefn Supplemental char* strstr (const char *@var{string}, const char *@var{sub})
@ -362,7 +760,7 @@ the location referenced by @var{endptr}.
@end deftypefn
@c strerror.c:730
@deftypefn Replacement int strtoerrno (const char *@var{name})
@deftypefn Extension int strtoerrno (const char *@var{name})
Given the symbolic name of a error number (e.g., @code{EACCES}), map it
to an errno value. If no translation is found, returns 0.
@ -371,6 +769,7 @@ to an errno value. If no translation is found, returns 0.
@c strtol.c:33
@deftypefn Supplemental {long int} strtol (const char *@var{string}, char **@var{endptr}, int @var{base})
@deftypefnx Supplemental {unsigned long int} strtoul (const char *@var{string}, char **@var{endptr}, int @var{base})
The @code{strtol} function converts the string in @var{string} to a
long integer value according to the given @var{base}, which must be
@ -379,7 +778,16 @@ is 0, @code{strtol} will look for the prefixes @code{0} and @code{0x}
to indicate bases 8 and 16, respectively, else default to base 10.
When the base is 16 (either explicitly or implicitly), a prefix of
@code{0x} is allowed. The handling of @var{endptr} is as that of
@code{strtod} above.
@code{strtod} above. The @code{strtoul} function is the same, except
that the converted value is unsigned.
@end deftypefn
@c strsignal.c:507
@deftypefn Extension int strtosigno (const char *@var{name})
Given the symbolic name of a signal, map it to a signal number. If no
translation is found, returns 0.
@end deftypefn
@ -394,6 +802,19 @@ not be used in new projects. Use @code{mkstemp} instead.
@end deftypefn
@c vasprintf.c:48
@deftypefn Extension int vasprintf (char **@var{resptr}, char *@var{format}, va_list @var{args})
Like @code{vsprintf}, but instead of passing a pointer to a buffer,
you pass a pointer to a pointer. This function will compute the size
of the buffer needed, allocate memory with @code{malloc}, and store a
pointer to the allocated memory in @code{*@var{resptr}}. The value
returned is the same as @code{vsprintf} would return. If memory could
not be allocated, zero is returned and @code{NULL} is stored in
@code{*@var{resptr}}.
@end deftypefn
@c vfork.c:6
@deftypefn Supplemental int vfork (void)

12
libiberty/getruntime.c
View File

@ -73,6 +73,18 @@ Boston, MA 02111-1307, USA. */
#endif
#endif
/*
@deftypefn Replacement long get_run_time ()
Returns the time used so far, in microseconds. If possible, this is
the time used by this process, else it is the elapsed time since the
process started.
@end deftypefn
*/
long
get_run_time ()
{

31
libiberty/insque.c
View File

@ -2,24 +2,27 @@
This file is in the public domain. */
/*
NAME
insque, remque -- insert, remove an element from a queue
SYNOPSIS
struct qelem {
struct qelem *q_forw;
struct qelem *q_back;
char q_data[];
};
@deftypefn Supplemental void insque (struct qelem *@var{elem}, struct qelem *@var{pred})
@deftypefnx Supplemental void remque (struct qelem *@var{elem})
void insque (struct qelem *elem, struct qelem *pred)
Routines to manipulate queues built from doubly linked lists. The
@code{insque} routine inserts @var{elem} in the queue immediately
after @var{pred}. The @code{remque} routine removes @var{elem} from
its containing queue. These routines expect to be passed pointers to
structures which have as their first members a forward pointer and a
back pointer, like this prototype (although no prototype is provided):
void remque (struct qelem *elem)
@example
struct qelem @{
struct qelem *q_forw;
struct qelem *q_back;
char q_data[];
@};
@end example
@end deftypefn
DESCRIPTION
Routines to manipulate queues built from doubly linked lists.
The insque routine inserts ELEM in the queue immediately after
PRED. The remque routine removes ELEM from its containing queue.
*/

27
libiberty/lbasename.c
View File

@ -19,23 +19,22 @@ not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
NAME
lbasename -- return pointer to last component of a pathname
SYNOPSIS
const char *lbasename (const char *name)
@deftypefn Replacement {const char*} lbasename (const char *@var{name})
DESCRIPTION
Given a pointer to a string containing a typical pathname
(/usr/src/cmd/ls/ls.c for example), returns a pointer to the
last component of the pathname ("ls.c" in this case). The
returned pointer is guaranteed to lie within the original
string. This latter fact is not true of many vendor C
libraries, which return special strings or modify the passed
strings for particular input.
Given a pointer to a string containing a typical pathname
(@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the
last component of the pathname (@samp{ls.c} in this case). The
returned pointer is guaranteed to lie within the original
string. This latter fact is not true of many vendor C
libraries, which return special strings or modify the passed
strings for particular input.
In particular, the empty string returns the same empty string,
and a path ending in @code{/} returns the empty string after it.
@end deftypefn
In particular, the empty string returns the same empty string,
and a path ending in '/' returns the empty string after it.
*/
#include "ansidecl.h"

105
libiberty/maint-tool
View File

@ -35,9 +35,17 @@ if ($mode eq "-s") {
}
&missing() if $mode eq "missing";
&undoc() if $mode eq "undoc";
exit 0;
format STDOUT =
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~
$out
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~~
$out
.
######################################################################
sub missing {
@ -73,3 +81,100 @@ sub missing {
}
}
}
######################################################################
sub undoc {
opendir(S, $srcdir);
while ($file = readdir S) {
if ($file =~ /\.texi$/) {
open(T, "$srcdir/$file");
while (<T>) {
if (/^\@deftype[^\(]* ([^\s\(]+) *\(/) {
$documented{$1} = 1;
}
}
close(T);
}
if ($file =~ /\.c$/) {
open(C, "$srcdir/$file");
while (<C>) {
if (/\@undocumented (\S+)/) {
$documented{$1} = 1;
}
if (/^static /) {
if (! /[\(;]/) {
s/[\r\n]+$/ /;
$_ .= <C>;
}
while ($_ =~ /\([^\)]*$/) {
s/[\r\n]+$/ /;
$_ .= <C>;
}
}
s/ VPARAMS([ \(])/$1/;
s/PREFIX\(([^\)]*)\)/byte_$1/;
if (/^static [^\(]* ([^\s\(]+) *\(.*\)$/) {
$documented{$1} = 1;
}
}
}
}
closedir(D);
# $out = join(' ', sort keys %documented);
# write;
# print "\n";
system "etags $srcdir/*.c $srcdir/../include/*.h";
open(TAGS, "TAGS");
while (<TAGS>) {
s/[\r\n]+$//;
if (/^\014$/) {
$filename = <TAGS>;
$filename =~ s/[\r\n]+$//;
$filename =~ s/,\d+$//;
$filename =~ s@.*[/\\]@@;
next;
}
if ($filename =~ /\.c$/ ) {
next unless /^[_a-zA-Z]/;
} else {
next unless /^\# *define/;
s/\# *define *//;
}
next if $filename =~ /mpw\.c/;
s/ VPARAMS//;
s/ *\177.*//;
s/,$//;
s/DEFUN\(//;
s/\(//;
next if /^static /;
next if /\s/;
next if /^_/;
next if $documented{$_};
next if /_H_?$/;
if ($seen_in{$_} ne $filename) {
$saw{$_} ++;
}
$seen_in{$_} = $filename;
}
for $k (keys %saw) {
delete $saw{$k} if $saw{$k} > 1;
}
for $k (sort keys %saw) {
$fromfile{$seen_in{$k}} .= " " if $fromfile{$seen_in{$k}};
$fromfile{$seen_in{$k}} .= $k;
}
for $f (sort keys %fromfile) {
$out = "$f: $fromfile{$f}";
write;
}
}

25
libiberty/make-temp-file.c
View File

@ -83,6 +83,17 @@ static const char vartmp[] =
static char *memoized_tmpdir;
/*
@deftypefn Replacement char* choose_tmpdir ()
Returns a pointer to a directory path suitable for creating temporary
files in.
@end deftypefn
*/
char *
choose_tmpdir ()
{
@ -122,9 +133,17 @@ choose_tmpdir ()
return tmpdir;
}
/* Return a temporary file name (as a string) or NULL if unable to create
one. SUFFIX is a suffix to append to the file name. The string is
malloced, and the temporary file has been created. */
/*
@deftypefn Replacement char* make_temp_file (const char *@var{suffix})
Return a temporary file name (as a string) or @code{NULL} if unable to
create one. @var{suffix} is a suffix to append to the file name. The
string is malloced, and the temporary file has been created.
@end deftypefn
*/
char *
make_temp_file (suffix)

21
libiberty/mkstemps.c
View File

@ -49,18 +49,27 @@ typedef unsigned long gcc_uint64_t;
#define TMP_MAX 16384
#endif
/* Generate a unique temporary file name from TEMPLATE.
/*
TEMPLATE has the form:
@deftypefn Replacement int mkstemps (char *@var{template}, int @var{suffix_len})
Generate a unique temporary file name from @var{template}.
@var{template} has the form:
@example
<path>/ccXXXXXX<suffix>
@end example
SUFFIX_LEN tells us how long <suffix> is (it can be zero length).
@var{suffix_len} tells us how long <suffix> is (it can be zero
length). The last six characters of @var{template} before <suffix>
must be @code{XXXXXX}; they are replaced with a string that makes the
filename unique. Returns a file descriptor open on the file for
reading and writing.
The last six characters of TEMPLATE before <suffix> must be "XXXXXX";
they are replaced with a string that makes the filename unique.
@end deftypefn
*/
Returns a file descriptor open on the file for reading and writing. */
int
mkstemps (template, suffix_len)
char *template;

81
libiberty/pexecute.c
View File

@ -64,53 +64,66 @@ static char *install_error_msg = "installation problem, cannot exec `%s'";
/* pexecute: execute a program.
PROGRAM and ARGV are the arguments to execv/execvp.
@deftypefn Extension int pexecute (const char *@var{program}, char * const *@var{argv}, const char *@var{this_pname}, const char *@var{temp_base}, char **@var{errmsg_fmt}, char **@var{errmsg_arg}, int flags)
THIS_PNAME is name of the calling program (i.e. argv[0]).
Executes a program.
TEMP_BASE is the path name, sans suffix, of a temporary file to use
if needed. This is currently only needed for MSDOS ports that don't use
GO32 (do any still exist?). Ports that don't need it can pass NULL.
@var{program} and @var{argv} are the arguments to
@code{execv}/@code{execvp}.
(FLAGS & PEXECUTE_SEARCH) is non-zero if $PATH should be searched
(??? It's not clear that GCC passes this flag correctly).
(FLAGS & PEXECUTE_FIRST) is nonzero for the first process in chain.
(FLAGS & PEXECUTE_FIRST) is nonzero for the last process in chain.
FIRST_LAST could be simplified to only mark the last of a chain of processes
but that requires the caller to always mark the last one (and not give up
early if some error occurs). It's more robust to require the caller to
mark both ends of the chain.
@var{this_pname} is name of the calling program (i.e. @code{argv[0]}).
The result is the pid on systems like Unix where we fork/exec and on systems
like WIN32 and OS2 where we use spawn. It is up to the caller to wait for
the child.
@var{temp_base} is the path name, sans suffix, of a temporary file to
use if needed. This is currently only needed for MS-DOS ports that
don't use @code{go32} (do any still exist?). Ports that don't need it
can pass @code{NULL}.
The result is the WEXITSTATUS on systems like MSDOS where we spawn and wait
for the child here.
(@var{flags} & @code{PEXECUTE_SEARCH}) is non-zero if @code{$PATH} should be searched
(??? It's not clear that GCC passes this flag correctly). (@var{flags} &
@code{PEXECUTE_FIRST}) is nonzero for the first process in chain.
(@var{flags} & @code{PEXECUTE_FIRST}) is nonzero for the last process
in chain. The first/last flags could be simplified to only mark the
last of a chain of processes but that requires the caller to always
mark the last one (and not give up early if some error occurs).
It's more robust to require the caller to mark both ends of the chain.
Upon failure, ERRMSG_FMT and ERRMSG_ARG are set to the text of the error
message with an optional argument (if not needed, ERRMSG_ARG is set to
NULL), and -1 is returned. `errno' is available to the caller to use.
The result is the pid on systems like Unix where we
@code{fork}/@code{exec} and on systems like WIN32 and OS/2 where we
use @code{spawn}. It is up to the caller to wait for the child.
pwait: cover function for wait.
The result is the WEXITSTATUS on systems like MS-DOS where we
@code{spawn} and wait for the child here.
PID is the process id of the task to wait for.
STATUS is the `status' argument to wait.
FLAGS is currently unused (allows future enhancement without breaking
upward compatibility). Pass 0 for now.
Upon failure, @var{errmsg_fmt} and @var{errmsg_arg} are set to the
text of the error message with an optional argument (if not needed,
@var{errmsg_arg} is set to @code{NULL}), and -1 is returned.
@code{errno} is available to the caller to use.
The result is the pid of the child reaped,
or -1 for failure (errno says why).
@end deftypefn
On systems that don't support waiting for a particular child, PID is
ignored. On systems like MSDOS that don't really multitask pwait
is just a mechanism to provide a consistent interface for the caller.
@deftypefn Extension int pwait (int @var{pid}, int *@var{status}, int @var{flags})
Waits for a program started by @code{pexecute} to finish.
@var{pid} is the process id of the task to wait for. @var{status} is
the `status' argument to wait. @var{flags} is currently unused (allows
future enhancement without breaking upward compatibility). Pass 0 for now.
The result is the pid of the child reaped, or -1 for failure
(@code{errno} says why).
On systems that don't support waiting for a particular child, @var{pid} is
ignored. On systems like MS-DOS that don't really multitask @code{pwait}
is just a mechanism to provide a consistent interface for the caller.
@end deftypefn
@undocumented pfinish
pfinish: finish generation of script
pfinish is necessary for systems like MPW where a script is generated that
runs the requested programs.
*/
runs the requested programs. */
#ifdef __MSDOS__
@ -254,7 +267,7 @@ extern int _spawnvp ();
/* This is a kludge to get around the Microsoft C spawn functions' propensity
to remove the outermost set of double quotes from all arguments. */
const char * const *
static const char * const *
fix_argv (argvec)
char **argvec;
{

18
libiberty/random.c
View File

@ -34,6 +34,24 @@
* It was reworked for the GNU C Library by Roland McGrath.
*/
/*
@deftypefn Supplement {long int} random ()
@deftypefnx Supplement void srandom (unsigned int @var{seed})
@deftypefnx Supplement void* initstate (unsigned int @var{seed}, void *@var{arg_state}, unsigned long @var{n})
@deftypefnx Supplement void* setstate (void *@var{arg_state})
Random number functions. @code{random} returns a random number in the
range @code{0..LONG_MAX}. @code{srandom} initializes the random
number generator to some starting point determined by @var{seed}
(else, the values returned by @code{random} are always the same for each
run of the program). @code{initstate} and @code{setstate} allow fine-grain
control over the state of the random number generator.
@end deftypefn
*/
#include <errno.h>
#if 0

18
libiberty/spaces.c
View File

@ -19,21 +19,13 @@ Boston, MA 02111-1307, USA. */
/*
NAME
@deftypefn Extension char* spaces (int @var{count})
spaces -- return a pointer to a buffer full of spaces
Returns a pointer to a memory region filled with the specified
number of spaces and null terminated. The returned pointer is
valid until at least the next call.
SYNOPSIS
char *spaces (int count)
DESCRIPTION
Returns a pointer to a memory region filled with the specified
number of spaces and null terminated. The returned pointer is
valid until at least the next call.
BUGS
@end deftypefn
*/

12
libiberty/strerror.c
View File

@ -563,7 +563,7 @@ init_error_tables ()
/*
@deftypefn Replacement int errno_max (void)
@deftypefn Extension int errno_max (void)
Returns the maximum @code{errno} value for which a corresponding
symbolic name or message is available. Note that in the case where we
@ -599,7 +599,7 @@ errno_max ()
/*
@deftypefn Replacement char* strerror (int @var{errnoval})
@deftypefn Supplemental char* strerror (int @var{errnoval})
Maps an @code{errno} number to an error message string, the contents
of which are implementation defined. On systems which have the
@ -608,7 +608,7 @@ strings will be the same as the ones used by @code{perror}.
If the supplied error number is within the valid range of indices for
the @code{sys_errlist}, but no message is available for the particular
error number, then returns the string @samp{"Error @var{num}"}, where
error number, then returns the string @samp{Error @var{num}}, where
@var{num} is the error number.
If the supplied error number is not a valid index into
@ -667,7 +667,7 @@ strerror (errnoval)
/*
@deftypefn Replacement const char* strerrno (int @var{errnum})
@deftypefn Replacement {const char*} strerrno (int @var{errnum})
Given an error number returned from a system call (typically returned
in @code{errno}), returns a pointer to a string containing the
@ -675,7 +675,7 @@ symbolic name of that error number, as found in @code{<errno.h>}.
If the supplied error number is within the valid range of indices for
symbolic names, but no name is available for the particular error
number, then returns the string @samp{"Error @var{num}"}, where @var{num}
number, then returns the string @samp{Error @var{num}}, where @var{num}
is the error number.
If the supplied error number is not within the range of valid
@ -727,7 +727,7 @@ strerrno (errnoval)
/*
@deftypefn Replacement int strtoerrno (const char *@var{name})
@deftypefn Extension int strtoerrno (const char *@var{name})
Given the symbolic name of a error number (e.g., @code{EACCES}), map it
to an errno value. If no translation is found, returns 0.

127
libiberty/strsignal.c
View File

@ -350,28 +350,22 @@ init_signal_tables ()
/*
NAME
@deftypefn Extension int signo_max ()
signo_max -- return the max signo value
Returns the maximum signal value for which a corresponding symbolic
name or message is available. Note that in the case where we use the
@code{sys_siglist} supplied by the system, it is possible for there to
be more symbolic names than messages, or vice versa. In fact, the
manual page for @code{psignal(3b)} explicitly warns that one should
check the size of the table (@code{NSIG}) before indexing it, since
new signal codes may be added to the system before they are added to
the table. Thus @code{NSIG} might be smaller than value implied by
the largest signo value defined in @code{<signal.h>}.
SYNOPSIS
We return the maximum value that can be used to obtain a meaningful
symbolic name or message.
int signo_max ();
DESCRIPTION
Returns the maximum signo value for which a corresponding symbolic
name or message is available. Note that in the case where
we use the sys_siglist supplied by the system, it is possible for
there to be more symbolic names than messages, or vice versa.
In fact, the manual page for psignal(3b) explicitly warns that one
should check the size of the table (NSIG) before indexing it,
since new signal codes may be added to the system before they are
added to the table. Thus NSIG might be smaller than value
implied by the largest signo value defined in <signal.h>.
We return the maximum value that can be used to obtain a meaningful
symbolic name or message.
@end deftypefn
*/
@ -391,31 +385,25 @@ signo_max ()
/*
NAME
@deftypefn Supplemental {const char *} strsignal (int @var{signo})
strsignal -- map a signal number to a signal message string
Maps an signal number to an signal message string, the contents of
which are implementation defined. On systems which have the external
variable @code{sys_siglist}, these strings will be the same as the
ones used by @code{psignal()}.
SYNOPSIS
If the supplied signal number is within the valid range of indices for
the @code{sys_siglist}, but no message is available for the particular
signal number, then returns the string @samp{Signal @var{num}}, where
@var{num} is the signal number.
const char *strsignal (int signo)
If the supplied signal number is not a valid index into
@code{sys_siglist}, returns @code{NULL}.
DESCRIPTION
The returned string is only guaranteed to be valid only until the next
call to @code{strsignal}.
Maps an signal number to an signal message string, the contents of
which are implementation defined. On systems which have the external
variable sys_siglist, these strings will be the same as the ones used
by psignal().
If the supplied signal number is within the valid range of indices
for the sys_siglist, but no message is available for the particular
signal number, then returns the string "Signal NUM", where NUM is the
signal number.
If the supplied signal number is not a valid index into sys_siglist,
returns NULL.
The returned string is only guaranteed to be valid only until the
next call to strsignal.
@end deftypefn
*/
@ -461,31 +449,23 @@ strsignal (signo)
/*
NAME
@deftypefn Extension {const char*} strsigno (int @var{signo})
strsigno -- map an signal number to a symbolic name string
Given an signal number, returns a pointer to a string containing the
symbolic name of that signal number, as found in @code{<signal.h>}.
SYNOPSIS
If the supplied signal number is within the valid range of indices for
symbolic names, but no name is available for the particular signal
number, then returns the string @samp{Signal @var{num}}, where
@var{num} is the signal number.
const char *strsigno (int signo)
If the supplied signal number is not within the range of valid
indices, then returns @code{NULL}.
DESCRIPTION
The contents of the location pointed to are only guaranteed to be
valid until the next call to @code{strsigno}.
Given an signal number, returns a pointer to a string containing
the symbolic name of that signal number, as found in <signal.h>.
If the supplied signal number is within the valid range of indices
for symbolic names, but no name is available for the particular
signal number, then returns the string "Signal NUM", where NUM is
the signal number.
If the supplied signal number is not within the range of valid
indices, then returns NULL.
BUGS
The contents of the location pointed to are only guaranteed to be
valid until the next call to strsigno.
@end deftypefn
*/
@ -524,18 +504,12 @@ strsigno (signo)
/*
NAME
@deftypefn Extension int strtosigno (const char *@var{name})
strtosigno -- map a symbolic signal name to a numeric value
Given the symbolic name of a signal, map it to a signal number. If no
translation is found, returns 0.
SYNOPSIS
int strtosigno (char *name)
DESCRIPTION
Given the symbolic name of a signal, map it to a signal number.
If no translation is found, returns 0.
@end deftypefn
*/
@ -570,19 +544,14 @@ strtosigno (name)
/*
NAME
@deftypefn Supplemental void psignal (unsigned @var{signo}, char *@var{message})
psignal -- print message about signal to stderr
Print @var{message} to the standard error, followed by a colon,
followed by the description of the signal specified by @var{signo},
followed by a newline.
SYNOPSIS
@end deftypefn
void psignal (unsigned signo, char *message);
DESCRIPTION
Print to the standard error the message, followed by a colon,
followed by the description of the signal specified by signo,
followed by a newline.
*/
#ifndef HAVE_PSIGNAL

4
libiberty/strtol.c
View File

@ -31,6 +31,7 @@
/*
@deftypefn Supplemental {long int} strtol (const char *@var{string}, char **@var{endptr}, int @var{base})
@deftypefnx Supplemental {unsigned long int} strtoul (const char *@var{string}, char **@var{endptr}, int @var{base})
The @code{strtol} function converts the string in @var{string} to a
long integer value according to the given @var{base}, which must be
@ -39,7 +40,8 @@ is 0, @code{strtol} will look for the prefixes @code{0} and @code{0x}
to indicate bases 8 and 16, respectively, else default to base 10.
When the base is 16 (either explicitly or implicitly), a prefix of
@code{0x} is allowed. The handling of @var{endptr} is as that of
@code{strtod} above.
@code{strtod} above. The @code{strtoul} function is the same, except
that the converted value is unsigned.
@end deftypefn

15
libiberty/vasprintf.c
View File

@ -43,6 +43,21 @@ extern PTR malloc ();
int global_total_width;
#endif
/*
@deftypefn Extension int vasprintf (char **@var{resptr}, char *@var{format}, va_list @var{args})
Like @code{vsprintf}, but instead of passing a pointer to a buffer,
you pass a pointer to a pointer. This function will compute the size
of the buffer needed, allocate memory with @code{malloc}, and store a
pointer to the allocated memory in @code{*@var{resptr}}. The value
returned is the same as @code{vsprintf} would return. If memory could
not be allocated, zero is returned and @code{NULL} is stored in
@code{*@var{resptr}}.
@end deftypefn
*/
static int int_vasprintf PARAMS ((char **, const char *, va_list *));