Makefile.in (pexecute.o): Use pexecute.c from libiberty.
* Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
explicit rules for building. Similarly for alloca and vfprintf.
* pexecute.c, alloca.c, vfprintf.c: Delete.
From-SVN: r22248
This commit is contained in:
Jeffrey A Law
Jeff Law
parent
fd384dc9c8
commit
39802f419a
4 changed files with 14 additions and 533 deletions
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@ -1,8 +1,8 @@
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Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
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* Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
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explicit rules for building.
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* pexecute.c: Delete.
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explicit rules for building. Similarly for alloca and vfprintf.
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* pexecute.c, alloca.c, vfprintf.c: Delete.
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Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
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@ -1314,6 +1314,11 @@ pexecute.o: $(srcdir)/../libiberty/pexecute.c $(CONFIG_H) system.h gansidecl.h
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$(LN_S) $(srcdir)/../libiberty/pexecute.c pexecute.c
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$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) pexecute.c
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vfprintf.o: $(srcdir)/../libiberty/vfprintf.c $(CONFIG_H) system.h gansidecl.h
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rm -f vfprintf.c
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$(LN_S) $(srcdir)/../libiberty/vfprintf.c vfprintf.c
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$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) vfprintf.c
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underscore.c: s-under ; @true
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s-under: $(GCC_PASSES)
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@ -1527,9 +1532,11 @@ halfpic.o: halfpic.c $(CONFIG_H) $(RTL_H) $(TREE_H) system.h
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# Normally this target is not used; but it is used if you
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# define ALLOCA=alloca.o. In that case, you must get a suitable alloca.c
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# from the GNU Emacs distribution.
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alloca.o: alloca.c
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alloca.o: $(srcdir)/../libiberty/alloca.c
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rm -f alloca.c
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$(LN_S) $(srcdir)/../libiberty/alloca.c alloca.c
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$(CC) $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $(ALLOCA_FLAGS) \
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-c `echo $(srcdir)/alloca.c | sed 's,^\./,,'`
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-c `echo alloca.c | sed 's,^\./,,'`
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$(ALLOCA_FINISH)
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#
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# Generate header and source files from the machine description,
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@ -1794,9 +1801,9 @@ $(HOST_PREFIX_1)rtlanal.o: $(srcdir)/rtlanal.c $(CONFIG_H) $(RTL_H)
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sed -e 's/config[.]h/hconfig.h/' $(srcdir)/rtlanal.c > $(HOST_PREFIX)rtlanal.c
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$(HOST_CC) -c $(HOST_CFLAGS) $(HOST_CPPFLAGS) $(INCLUDES) $(HOST_PREFIX)rtlanal.c
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$(HOST_PREFIX_1)alloca.o: alloca.c
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$(HOST_PREFIX_1)alloca.o: $(srcdir)/../libiberty/alloca.c
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rm -f $(HOST_PREFIX)alloca.c
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cp $(srcdir)/alloca.c $(HOST_PREFIX)alloca.c
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$(LN_S) $(srcdir)/../libiberty/alloca.c $(HOST_PREFIX)alloca.c
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$(HOST_CC) -c $(HOST_CFLAGS) $(HOST_CPPFLAGS) $(INCLUDES) $(HOST_PREFIX)alloca.c
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$(HOST_PREFIX_1)obstack.o: obstack.c
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@ -1806,7 +1813,7 @@ $(HOST_PREFIX_1)obstack.o: obstack.c
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$(HOST_PREFIX_1)vfprintf.o: $(srcdir)/../libiberty/vfprintf.c
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rm -f $(HOST_PREFIX)vfprintf.c
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sed -e 's/config[.]h/hconfig.h/' $(srcdir)../libiberty/vfprintf.c > $(HOST_PREFIX)vfprintf.c
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sed -e 's/config[.]h/hconfig.h/' $(srcdir)/../libiberty/vfprintf.c > $(HOST_PREFIX)vfprintf.c
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$(HOST_CC) -c $(HOST_CFLAGS) $(HOST_CPPFLAGS) $(INCLUDES) $(HOST_PREFIX)vfprintf.c
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$(HOST_PREFIX_1)doprint.o: doprint.c
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505
gcc/alloca.c
505
gcc/alloca.c
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@ -1,505 +0,0 @@
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/* alloca.c -- allocate automatically reclaimed memory
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(Mostly) portable public-domain implementation -- D A Gwyn
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This implementation of the PWB library alloca function,
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which is used to allocate space off the run-time stack so
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that it is automatically reclaimed upon procedure exit,
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was inspired by discussions with J. Q. Johnson of Cornell.
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J.Otto Tennant <jot@cray.com> contributed the Cray support.
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There are some preprocessor constants that can
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be defined when compiling for your specific system, for
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improved efficiency; however, the defaults should be okay.
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The general concept of this implementation is to keep
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track of all alloca-allocated blocks, and reclaim any
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that are found to be deeper in the stack than the current
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invocation. This heuristic does not reclaim storage as
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soon as it becomes invalid, but it will do so eventually.
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As a special case, alloca(0) reclaims storage without
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allocating any. It is a good idea to use alloca(0) in
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your main control loop, etc. to force garbage collection. */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef emacs
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#include "blockinput.h"
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#endif
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/* If compiling with GCC 2, this file's not needed. Except of course if
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the C alloca is explicitly requested. */
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#if defined (USE_C_ALLOCA) || !defined (__GNUC__) || __GNUC__ < 2
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/* If someone has defined alloca as a macro,
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there must be some other way alloca is supposed to work. */
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#ifndef alloca
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#ifdef emacs
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#ifdef static
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/* actually, only want this if static is defined as ""
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-- this is for usg, in which emacs must undefine static
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in order to make unexec workable
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*/
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#ifndef STACK_DIRECTION
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you
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lose
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-- must know STACK_DIRECTION at compile-time
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#endif /* STACK_DIRECTION undefined */
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#endif /* static */
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#endif /* emacs */
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/* If your stack is a linked list of frames, you have to
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provide an "address metric" ADDRESS_FUNCTION macro. */
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#if defined (CRAY) && defined (CRAY_STACKSEG_END)
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long i00afunc ();
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#define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
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#else
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#define ADDRESS_FUNCTION(arg) &(arg)
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#endif
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#if __STDC__
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typedef void *pointer;
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#else
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typedef char *pointer;
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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/* Different portions of Emacs need to call different versions of
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malloc. The Emacs executable needs alloca to call xmalloc, because
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ordinary malloc isn't protected from input signals. On the other
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hand, the utilities in lib-src need alloca to call malloc; some of
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them are very simple, and don't have an xmalloc routine.
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Non-Emacs programs expect this to call use xmalloc.
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Callers below should use malloc. */
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#ifndef emacs
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#define malloc xmalloc
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#endif
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extern pointer malloc ();
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/* Define STACK_DIRECTION if you know the direction of stack
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growth for your system; otherwise it will be automatically
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deduced at run-time.
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STACK_DIRECTION > 0 => grows toward higher addresses
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STACK_DIRECTION < 0 => grows toward lower addresses
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STACK_DIRECTION = 0 => direction of growth unknown */
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#ifndef STACK_DIRECTION
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#define STACK_DIRECTION 0 /* Direction unknown. */
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#endif
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#if STACK_DIRECTION != 0
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#define STACK_DIR STACK_DIRECTION /* Known at compile-time. */
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#else /* STACK_DIRECTION == 0; need run-time code. */
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static int stack_dir; /* 1 or -1 once known. */
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#define STACK_DIR stack_dir
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static void
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find_stack_direction ()
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{
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static char *addr = NULL; /* Address of first `dummy', once known. */
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auto char dummy; /* To get stack address. */
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if (addr == NULL)
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{ /* Initial entry. */
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addr = ADDRESS_FUNCTION (dummy);
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find_stack_direction (); /* Recurse once. */
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}
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else
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{
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/* Second entry. */
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if (ADDRESS_FUNCTION (dummy) > addr)
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stack_dir = 1; /* Stack grew upward. */
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else
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stack_dir = -1; /* Stack grew downward. */
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}
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}
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#endif /* STACK_DIRECTION == 0 */
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/* An "alloca header" is used to:
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(a) chain together all alloca'ed blocks;
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(b) keep track of stack depth.
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It is very important that sizeof(header) agree with malloc
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alignment chunk size. The following default should work okay. */
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#ifndef ALIGN_SIZE
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#define ALIGN_SIZE sizeof(double)
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#endif
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typedef union hdr
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{
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char align[ALIGN_SIZE]; /* To force sizeof(header). */
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struct
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{
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union hdr *next; /* For chaining headers. */
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char *deep; /* For stack depth measure. */
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} h;
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} header;
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static header *last_alloca_header = NULL; /* -> last alloca header. */
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/* Return a pointer to at least SIZE bytes of storage,
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which will be automatically reclaimed upon exit from
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the procedure that called alloca. Originally, this space
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was supposed to be taken from the current stack frame of the
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caller, but that method cannot be made to work for some
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implementations of C, for example under Gould's UTX/32. */
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pointer
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alloca (size)
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unsigned size;
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{
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auto char probe; /* Probes stack depth: */
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register char *depth = ADDRESS_FUNCTION (probe);
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#if STACK_DIRECTION == 0
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if (STACK_DIR == 0) /* Unknown growth direction. */
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find_stack_direction ();
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#endif
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/* Reclaim garbage, defined as all alloca'd storage that
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was allocated from deeper in the stack than currently. */
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{
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register header *hp; /* Traverses linked list. */
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#ifdef emacs
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BLOCK_INPUT;
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#endif
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for (hp = last_alloca_header; hp != NULL;)
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if ((STACK_DIR > 0 && hp->h.deep > depth)
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|| (STACK_DIR < 0 && hp->h.deep < depth))
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{
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register header *np = hp->h.next;
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free ((pointer) hp); /* Collect garbage. */
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hp = np; /* -> next header. */
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}
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else
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break; /* Rest are not deeper. */
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last_alloca_header = hp; /* -> last valid storage. */
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#ifdef emacs
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UNBLOCK_INPUT;
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#endif
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}
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if (size == 0)
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return NULL; /* No allocation required. */
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/* Allocate combined header + user data storage. */
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{
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register pointer new = malloc (sizeof (header) + size);
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/* Address of header. */
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if (new == 0)
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abort();
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((header *) new)->h.next = last_alloca_header;
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((header *) new)->h.deep = depth;
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last_alloca_header = (header *) new;
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/* User storage begins just after header. */
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return (pointer) ((char *) new + sizeof (header));
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}
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}
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#if defined (CRAY) && defined (CRAY_STACKSEG_END)
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#ifdef DEBUG_I00AFUNC
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#include <stdio.h>
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#endif
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#ifndef CRAY_STACK
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#define CRAY_STACK
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#ifndef CRAY2
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/* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
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struct stack_control_header
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{
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long shgrow:32; /* Number of times stack has grown. */
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long shaseg:32; /* Size of increments to stack. */
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long shhwm:32; /* High water mark of stack. */
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long shsize:32; /* Current size of stack (all segments). */
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};
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/* The stack segment linkage control information occurs at
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the high-address end of a stack segment. (The stack
|
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grows from low addresses to high addresses.) The initial
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part of the stack segment linkage control information is
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0200 (octal) words. This provides for register storage
|
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for the routine which overflows the stack. */
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struct stack_segment_linkage
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{
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long ss[0200]; /* 0200 overflow words. */
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long sssize:32; /* Number of words in this segment. */
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long ssbase:32; /* Offset to stack base. */
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long:32;
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long sspseg:32; /* Offset to linkage control of previous
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segment of stack. */
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long:32;
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long sstcpt:32; /* Pointer to task common address block. */
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long sscsnm; /* Private control structure number for
|
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microtasking. */
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long ssusr1; /* Reserved for user. */
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long ssusr2; /* Reserved for user. */
|
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long sstpid; /* Process ID for pid based multi-tasking. */
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long ssgvup; /* Pointer to multitasking thread giveup. */
|
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long sscray[7]; /* Reserved for Cray Research. */
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long ssa0;
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long ssa1;
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long ssa2;
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long ssa3;
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long ssa4;
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long ssa5;
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long ssa6;
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long ssa7;
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long sss0;
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long sss1;
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long sss2;
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long sss3;
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long sss4;
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long sss5;
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long sss6;
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long sss7;
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};
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#else /* CRAY2 */
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/* The following structure defines the vector of words
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returned by the STKSTAT library routine. */
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struct stk_stat
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{
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long now; /* Current total stack size. */
|
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long maxc; /* Amount of contiguous space which would
|
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be required to satisfy the maximum
|
||||
stack demand to date. */
|
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long high_water; /* Stack high-water mark. */
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long overflows; /* Number of stack overflow ($STKOFEN) calls. */
|
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long hits; /* Number of internal buffer hits. */
|
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long extends; /* Number of block extensions. */
|
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long stko_mallocs; /* Block allocations by $STKOFEN. */
|
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long underflows; /* Number of stack underflow calls ($STKRETN). */
|
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long stko_free; /* Number of deallocations by $STKRETN. */
|
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long stkm_free; /* Number of deallocations by $STKMRET. */
|
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long segments; /* Current number of stack segments. */
|
||||
long maxs; /* Maximum number of stack segments so far. */
|
||||
long pad_size; /* Stack pad size. */
|
||||
long current_address; /* Current stack segment address. */
|
||||
long current_size; /* Current stack segment size. This
|
||||
number is actually corrupted by STKSTAT to
|
||||
include the fifteen word trailer area. */
|
||||
long initial_address; /* Address of initial segment. */
|
||||
long initial_size; /* Size of initial segment. */
|
||||
};
|
||||
|
||||
/* The following structure describes the data structure which trails
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||||
any stack segment. I think that the description in 'asdef' is
|
||||
out of date. I only describe the parts that I am sure about. */
|
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|
||||
struct stk_trailer
|
||||
{
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||||
long this_address; /* Address of this block. */
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long this_size; /* Size of this block (does not include
|
||||
this trailer). */
|
||||
long unknown2;
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||||
long unknown3;
|
||||
long link; /* Address of trailer block of previous
|
||||
segment. */
|
||||
long unknown5;
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||||
long unknown6;
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||||
long unknown7;
|
||||
long unknown8;
|
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long unknown9;
|
||||
long unknown10;
|
||||
long unknown11;
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||||
long unknown12;
|
||||
long unknown13;
|
||||
long unknown14;
|
||||
};
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||||
|
||||
#endif /* CRAY2 */
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#endif /* not CRAY_STACK */
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||||
|
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#ifdef CRAY2
|
||||
/* Determine a "stack measure" for an arbitrary ADDRESS.
|
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I doubt that "lint" will like this much. */
|
||||
|
||||
static long
|
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i00afunc (long *address)
|
||||
{
|
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struct stk_stat status;
|
||||
struct stk_trailer *trailer;
|
||||
long *block, size;
|
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long result = 0;
|
||||
|
||||
/* We want to iterate through all of the segments. The first
|
||||
step is to get the stack status structure. We could do this
|
||||
more quickly and more directly, perhaps, by referencing the
|
||||
$LM00 common block, but I know that this works. */
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|
||||
STKSTAT (&status);
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||||
|
||||
/* Set up the iteration. */
|
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|
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trailer = (struct stk_trailer *) (status.current_address
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+ status.current_size
|
||||
- 15);
|
||||
|
||||
/* There must be at least one stack segment. Therefore it is
|
||||
a fatal error if "trailer" is null. */
|
||||
|
||||
if (trailer == 0)
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abort ();
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||||
|
||||
/* Discard segments that do not contain our argument address. */
|
||||
|
||||
while (trailer != 0)
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||||
{
|
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block = (long *) trailer->this_address;
|
||||
size = trailer->this_size;
|
||||
if (block == 0 || size == 0)
|
||||
abort ();
|
||||
trailer = (struct stk_trailer *) trailer->link;
|
||||
if ((block <= address) && (address < (block + size)))
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||||
break;
|
||||
}
|
||||
|
||||
/* Set the result to the offset in this segment and add the sizes
|
||||
of all predecessor segments. */
|
||||
|
||||
result = address - block;
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||||
|
||||
if (trailer == 0)
|
||||
{
|
||||
return result;
|
||||
}
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||||
|
||||
do
|
||||
{
|
||||
if (trailer->this_size <= 0)
|
||||
abort ();
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result += trailer->this_size;
|
||||
trailer = (struct stk_trailer *) trailer->link;
|
||||
}
|
||||
while (trailer != 0);
|
||||
|
||||
/* We are done. Note that if you present a bogus address (one
|
||||
not in any segment), you will get a different number back, formed
|
||||
from subtracting the address of the first block. This is probably
|
||||
not what you want. */
|
||||
|
||||
return (result);
|
||||
}
|
||||
|
||||
#else /* not CRAY2 */
|
||||
/* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
|
||||
Determine the number of the cell within the stack,
|
||||
given the address of the cell. The purpose of this
|
||||
routine is to linearize, in some sense, stack addresses
|
||||
for alloca. */
|
||||
|
||||
static long
|
||||
i00afunc (long address)
|
||||
{
|
||||
long stkl = 0;
|
||||
|
||||
long size, pseg, this_segment, stack;
|
||||
long result = 0;
|
||||
|
||||
struct stack_segment_linkage *ssptr;
|
||||
|
||||
/* Register B67 contains the address of the end of the
|
||||
current stack segment. If you (as a subprogram) store
|
||||
your registers on the stack and find that you are past
|
||||
the contents of B67, you have overflowed the segment.
|
||||
|
||||
B67 also points to the stack segment linkage control
|
||||
area, which is what we are really interested in. */
|
||||
|
||||
stkl = CRAY_STACKSEG_END ();
|
||||
ssptr = (struct stack_segment_linkage *) stkl;
|
||||
|
||||
/* If one subtracts 'size' from the end of the segment,
|
||||
one has the address of the first word of the segment.
|
||||
|
||||
If this is not the first segment, 'pseg' will be
|
||||
nonzero. */
|
||||
|
||||
pseg = ssptr->sspseg;
|
||||
size = ssptr->sssize;
|
||||
|
||||
this_segment = stkl - size;
|
||||
|
||||
/* It is possible that calling this routine itself caused
|
||||
a stack overflow. Discard stack segments which do not
|
||||
contain the target address. */
|
||||
|
||||
while (!(this_segment <= address && address <= stkl))
|
||||
{
|
||||
#ifdef DEBUG_I00AFUNC
|
||||
fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
|
||||
#endif
|
||||
if (pseg == 0)
|
||||
break;
|
||||
stkl = stkl - pseg;
|
||||
ssptr = (struct stack_segment_linkage *) stkl;
|
||||
size = ssptr->sssize;
|
||||
pseg = ssptr->sspseg;
|
||||
this_segment = stkl - size;
|
||||
}
|
||||
|
||||
result = address - this_segment;
|
||||
|
||||
/* If you subtract pseg from the current end of the stack,
|
||||
you get the address of the previous stack segment's end.
|
||||
This seems a little convoluted to me, but I'll bet you save
|
||||
a cycle somewhere. */
|
||||
|
||||
while (pseg != 0)
|
||||
{
|
||||
#ifdef DEBUG_I00AFUNC
|
||||
fprintf (stderr, "%011o %011o\n", pseg, size);
|
||||
#endif
|
||||
stkl = stkl - pseg;
|
||||
ssptr = (struct stack_segment_linkage *) stkl;
|
||||
size = ssptr->sssize;
|
||||
pseg = ssptr->sspseg;
|
||||
result += size;
|
||||
}
|
||||
return (result);
|
||||
}
|
||||
|
||||
#endif /* not CRAY2 */
|
||||
#endif /* CRAY */
|
||||
|
||||
#endif /* no alloca */
|
||||
#endif /* not GCC version 2 */
|
||||
|
|
@ -1,21 +0,0 @@
|
|||
/* Provide a version vfprintf in terms of _doprnt.
|
||||
By Kaveh Ghazi (ghazi@caip.rutgers.edu) 3/29/98
|
||||
Copyright (C) 1998 Free Software Foundation, Inc.
|
||||
*/
|
||||
|
||||
#ifdef __STDC__
|
||||
#include <stdarg.h>
|
||||
#else
|
||||
#include <varargs.h>
|
||||
#endif
|
||||
#include <stdio.h>
|
||||
#undef vfprintf
|
||||
|
||||
int
|
||||
vfprintf (stream, format, ap)
|
||||
FILE * stream;
|
||||
const char * format;
|
||||
va_list ap;
|
||||
{
|
||||
return _doprnt (format, ap, stream);
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue