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author | Ulrich Drepper <drepper@redhat.com> | 1997-02-27 06:01:16 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-02-27 06:01:16 +0000 |
commit | ceb2d9aaa86cc3d3d4accc294751c98d49bdc5c2 (patch) | |
tree | 977724555bd3c1007b415b88ed3994e6290f4451 /manual | |
parent | 867a8743a42f28c5a50de893c82db66ae215f69c (diff) | |
download | glibc-ceb2d9aaa86cc3d3d4accc294751c98d49bdc5c2.zip glibc-ceb2d9aaa86cc3d3d4accc294751c98d49bdc5c2.tar.gz glibc-ceb2d9aaa86cc3d3d4accc294751c98d49bdc5c2.tar.bz2 |
update from main archive 970226cvs/libc-970301cvs/libc-970228cvs/libc-970227
1997-02-27 05:12 Ulrich Drepper <drepper@cygnus.com>
* manual/Makefile: Add rules to run and distribute xtract-typefun.
* manual/xtract-typefun.awk: New file. Script to extract function,
variable, macro anchor to put into the `dir' file.
* manual/signal.texi: Document difference between SysV and BSD
signal(3) function and add documentation for sysv_signal.
* sysdeps/libm-i387/e_acoshl.c: Clear upper half of word containing
exponent before comparing.
1997-02-27 01:13 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/netinet/in.h (htonl, htons, ntohl, ntohs): Change
prototypes to use types with explicit width. `unsigned long' is
different on 64 bit systems.
* sysdeps/unix/sysv/linux/netinet/in.h: Likewise.
* sysdeps/generic/htonl.c: Likewise.
* sysdeps/generic/htons.c: Likewise.
* sysdeps/generic/ntohl.c: Likewise.
* sysdeps/generic/ntohs.c: Likewise.
Suggested by a sun <asun@zoology.washington.edu>.
1997-02-26 08:30 Andreas Jaeger <aj@arthur.pfalz.de>
* math/math.h: Include <__math.h> if __NO_MATH_INLINES is not
defined and we want optimization.
1997-02-27 01:13 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/netinet/in.h (htonl, htons, ntohl, ntohs): Change
prototypes to use types with explicit width. `unsigned long' is
different on 64 bit systems.
Suggested by a sun <asun@zoology.washington.edu>.
1997-02-02 19:53 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* misc/getpass.c: Don't disable canonical input.
Reverted patch of Mon Jan 6 01:35:29 1997.
1996-12-14 22:07 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/libioP.h (_IO_finish_t): Take additional parameter, to
match the hidden __in_chrg parameter of the destructor.
(_IO_FINISH): Pass zero for it.
* libio/genops.c (_IO_default_finish): Add second parameter, which
is ignored.
* libio/memstream.c (_IO_mem_finish): Likewise.
* libio/fileops.c (_IO_mem_finish): Likewise.
* libio/strops.c (_IO_str_finish): Likewise. All callers changed.
1997-02-27 00:23 H.J. Lu <hjl@lucon.org>
* time/Makefile: Avoid using patterns in dependencies.
1997-02-26 00:56 Miguel de Icaza <miguel@nuclecu.unam.mx>
* elf/rtld.c: Make _dl_start static. Otherwise the linker on the
SPARC will convert the call _dl_start into a call into the PLT.
* elf/rtld.c (_dl_start): On the SPARC we need to adjust the value
of arg to make it point to the actual values.
* sysdeps/sparc/elf/DEFS.h: New ELF specific version.
* sysdeps/sparc/Dist: Mention sysdeps/sparc/elf/DEFS.h.
* sysdeps/sparc/bsd-_setjmp.S, sysdeps/sparc/bsd-setjmp.S: Make
them PIC aware.
* sysdeps/sparc/dl-machine.h (elf_machine_load_address):
Implemented.
(elf_machine_rela): Make it compile; fix existing relocation
types; add unhandled relocation types.
(ELF_ADJUST_ARG): Get pointer to arguments at program startup.
(RTLD_START): Initial implementation, not yet finished.
* sysdeps/sparc/elf/start.S: Fix.
* sysdeps/sparc/fpu_control.h: Remove duplicate declaration of
__setfpucw.
* sysdeps/sparc/divrem.m4: Make compilable under Linux.
* sysdeps/sparc/rem.S, sysdeps/sparc/sdiv.S, sysdeps/sparc/udiv.S,
sysdeps/sparc/urem.S : Regenerated.
* sysdeps/sparc/setjmp.S: Make it PIC aware.
* sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S: Define
__ASSEMBLY__ before using kernel header.
* sysdeps/unix/sysv/linux/sparc/Makefile: Use -mv8 flag to compile
rtld.c.
* sysdeps/unix/sysv/linux/sparc/brk.c: Implement.
* sysdeps/unix/sysv/linux/sparc/profil-counter.h: Remove code
to handle old signals.
* sysdeps/unix/sysv/linux/sparc/sigaction.c: Implements sigaction
for all Linux/SPARC kernels.
* sysdeps/unix/sysv/linux/sparc/syscall.S: Add code to store
errno using __errno_location.
* sysdeps/unix/sysv/linux/sparc/sysdep.h: Add various handler
macros for assembler sources.
* sysdeps/unix/sysv/linux/sparc/errno.c: Define errno.
1997-02-25 16:02 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* elf/rtld.c (dl_main): Remove dead code that is never executed.
Rename local variable l to main_map where it is used to point to
the load_map for the executable.
1997-02-25 15:03 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* elf/dl-version.c (_dl_check_all_versions): Ignore libraries that
could not be found.
1997-02-24 23:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules: Generate implicit object suffix rules automagically.
(o-iterator): Move before first use.
* Makeconfig (all-object-suffixes): Add .bo suffix.
1997-02-25 15:11 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-i387/e_acoshf.S (__ieee754_acoshf): Test correct
word on stack for overflow.
C++. Use __exception instead.
Diffstat (limited to 'manual')
-rw-r--r-- | manual/Makefile | 17 | ||||
-rw-r--r-- | manual/signal.texi | 24 | ||||
-rw-r--r-- | manual/xtract-typefun.awk | 26 |
3 files changed, 66 insertions, 1 deletions
diff --git a/manual/Makefile b/manual/Makefile index 0f525be..0e8ae85 100644 --- a/manual/Makefile +++ b/manual/Makefile @@ -21,6 +21,9 @@ subdir := manual export subdir := $(subdir) +# We need GNU awk for the xtract-typefun script. +GAWK = gawk + .PHONY: all dvi info all: dvi info dvi: libc.dvi @@ -60,6 +63,17 @@ stamp-summary: summary.awk $(chapters) $(chapters-incl) # touch is broken on our machines. Sigh. date > $@ +# Generate a file which can be added to the `dir' content to provide direct +# access to the documentation of the function, variables, and other +# definitions. +dir-add.texi: manual/xtract-typefun.awk $(chapters-incl) + if test -n "$(chapters-incl)"; then \ + (for i in $(chapters-incl); do \ + $(GAWK) -f $< < $i; \ + done) | sort > $@.new; \ + ./move-if-change $@.new $@; \ + fi + # Generate Texinfo files from the C source for the example programs. %.c.texi: examples/%.c sed -e 's,[{}],@&,g' \ @@ -78,7 +92,8 @@ distribute = $(minimal-dist) \ $(patsubst examples/%.c,%.c.texi,$(filter examples/%.c, \ $(minimal-dist))) \ libc.info* libc.?? libc.??s texinfo.tex summary.texi \ - stamp-summary chapters chapters-incl + stamp-summary chapters chapters-incl \ + xtract-typefun.awk export distribute := $(distribute) tar-it = tar chovf $@ $^ diff --git a/manual/signal.texi b/manual/signal.texi index 1a4f866..767ddab 100644 --- a/manual/signal.texi +++ b/manual/signal.texi @@ -1040,6 +1040,18 @@ a handler for @code{SIGKILL} or @code{SIGSTOP}. @end table @end deftypefun +@strong{Compatibility Note:} A problem when working with the +@code{signal} function is that it has a different semantic on BSD and +SVID system. The difference is that on SVID systems the signal handler +is deinstalled after an signal was delivered. On BSD systems the +handler must be explicitly deinstalled. In the GNU C Library we use the +BSD version by default. To use the SVID version you can either use the +function @code{sysv_signal} (see below) or use the @code{_XOPEN_SOURCE} +feature select macro (@pxref{Feature Test Macros}) Generally it should +be avoided to use this functions due to the compatibility problems. It +is better to use @code{sigaction} if it is available since the results +are much more reliable. + Here is a simple example of setting up a handler to delete temporary files when certain fatal signals happen: @@ -1080,6 +1092,18 @@ example because these are designed to provide information for debugging (a core dump), and the temporary files may give useful information. @comment signal.h +@comment GNU +@deftypefun sighandler_t sysv_signal (int @var{signum}, sighandler_t @var{action}) +The @code{sysv_signal} implements the behaviour of the standard +@code{signal} function as found on SVID systems. The difference to BSD +systems is that the handler is deinstalled after a delivery of a signal. + +@strong{Compatibility Note:} As said above for @code{signal}, this +function should be avoided when possible. @code{sigaction} is the +preferred method. +@end deftypefun + +@comment signal.h @comment SVID @deftypefun sighandler_t ssignal (int @var{signum}, sighandler_t @var{action}) The @code{ssignal} function does the same thing as @code{signal}; it is diff --git a/manual/xtract-typefun.awk b/manual/xtract-typefun.awk new file mode 100644 index 0000000..6450ac1 --- /dev/null +++ b/manual/xtract-typefun.awk @@ -0,0 +1,26 @@ +#! /usr/local/bin/gawk -f +BEGIN { + last_node=""; +} + +/^@node/ { + last_node = gensub (/@node +([^@,]+).*/, "\\1", 1); +} + +/^@deftypefun/ { + printf ("* %s: (libc)%s.\n", + gensub (/@deftypefun +([^{ ]+|\{[^}]+\}) +([[:alpha:]_][[:alnum:]_]+).*/, "\\2", 1), + last_node); +} + +/^@deftypevr/ { + printf ("* %s: (libc)%s.\n", + gensub (/@deftypevr +([^{ ]+|\{[^}]+\}) +([^{ ]+|\{[^}]+\}) +([[:alpha:]_][[:alnum:]_]+).*/, "\\3", 1), + last_node); +} + +/^@deftypefn/ { + printf ("* %s: (libc)%s.\n", + gensub (/@deftypefn +([^{ ]+|\{[^}]+\}) +[^{ ]*(\{[^}]+\})? +([[:alpha:]_][[:alnum:]_]+).*/, "\\3", 1), + last_node); +} |