annotate src/s/aix4.h @ 851:e7ee5f8bde58

[xemacs-hg @ 2002-05-23 11:46:08 by ben] fix for raymond toy's crash, alloca crashes, some recover-session improvements files.el: Recover-session improvements: Only show session files where some files can actually be recovered, and show in chronological order. subr.el, menubar-items.el: As promised to rms, the functionality in truncate-string-with-continuation-dots has been merged into truncate-string-to-width. Change callers in menubar-items.el. select.el: Document some of these funs better. Fix problem where we were doing own-clipboard twice. Makefile.in.in: Add alloca.o. Ensure that alloca.s doesn't compile into alloca.o, but allocax.o (not that it's currently used or anything.) EmacsFrame.c, abbrev.c, alloc.c, alloca.c, callint.c, callproc.c, config.h.in, device-msw.c, device-x.c, dired.c, doc.c, editfns.c, emacs.c, emodules.c, eval.c, event-Xt.c, event-msw.c, event-stream.c, file-coding.c, fileio.c, filelock.c, fns.c, glyphs-gtk.c, glyphs-msw.c, glyphs-x.c, gui-x.c, input-method-xlib.c, intl-win32.c, lisp.h, lread.c, menubar-gtk.c, menubar-msw.c, menubar.c, mule-wnnfns.c, nt.c, objects-msw.c, process-nt.c, realpath.c, redisplay-gtk.c, redisplay-output.c, redisplay-x.c, redisplay.c, search.c, select-msw.c, sysdep.c, syswindows.h, text.c, text.h, ui-byhand.c: Fix Raymond Toy's crash. Repeat to self: 2^21 - 1 is NOT the same as (2 << 21) - 1. Fix crashes due to excessive alloca(). replace alloca() with ALLOCA(), which calls the C alloca() [which uses xmalloc()] when the size is too big. Insert in various places calls to try to flush the C alloca() stored info if there is any. Add MALLOC_OR_ALLOCA(), for places that expect to be alloca()ing large blocks. This xmalloc()s when too large and records an unwind-protect to free -- relying on the caller to unbind_to() elsewhere in the function. Use it in concat(). Use MALLOC instead of ALLOCA in select-msw.c. xemacs.mak: Add alloca.o.
author ben
date Thu, 23 May 2002 11:46:46 +0000
parents 943eaba38521
children
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1 #define AIX4
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2
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3 #include "aix3-2-5.h"
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4
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5 /* AIX 4 does not have HFT any more. */
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6 #undef AIXHFT
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7
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8 #ifndef NOT_C_CODE
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9 #define _XFUNCS_H_ 1
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10
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11 /* #### we don't use either any more. some AIX user should delete the include
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12 and see if anything breaks. --ben */
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13 /* AIX is happier when bzero and strcasecmp are declared */
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14 #include "strings.h"
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16 /* Forward declarations for xlc warning suppressions */
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17 struct ether_addr;
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18 struct sockaddr_dl;
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20 #ifdef __xlC__ /* "eXceLlent C compiler" ?! */
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21 #if __xlC__ >= 1200
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22 /* IBM's C compiler option `-O3' is too aggressive.
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23 We recommend instead the combination `-O3 -qstrict', which seems safe.
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25 cc -O3 miscompiles at least two functions. From IBM's docs:
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27 IBM> -qstrict turns off the following optimizations:
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29 IBM> Performing code motion and scheduling on computations such as loads
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30 IBM> and floating-point computations that may trigger an exception.
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32 Nevertheless, we try to work with these compiler options. */
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33 #pragma option_override (bytecount_to_charcount, "opt(strict,yes)")
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34 #pragma option_override (Fexpand_file_name, "opt(strict,yes)")
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35 #endif /* recent IBM C compiler */
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36 #endif /* IBM's C compiler */
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38 #endif /* C code */
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40 /* getaddrinfo is broken in AIX 4.3 as per IY04165.
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41 At this time (2/21/2000), there's no PTF available.
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42 -- Mike Sperber <mike@xemacs.org> */
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43
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44 #undef HAVE_GETADDRINFO