From f9eb6721c380f3330d0341736322649a055ea2ae Mon Sep 17 00:00:00 2001 From: Arnold Metselaar Date: Sat, 26 Nov 2005 20:03:53 +0000 Subject: [PATCH] gas/ acinclude.m4 aclocal.m4 app.c app.o as.c as.h as.h.cvs asintl.h as-new as.o atof-generic.c atof-generic.o atof-ieee.o autom4te.cache bignum.h bit_fix.h cgen.c cgen.h ChangeLog ChangeLog-0001 ChangeLog-0203 ChangeLog.~1.2755.~ ChangeLog-9295 ChangeLog-9697 ChangeLog-9899 cond.c cond.o config config.cache config.h config.in config.log config.status configure configure.in configure.tgt CONTRIBUTORS COPYING CVS debug.c DEP2 DEPDIR depend.c depend.o dep-in.sed DEPOBJ dep.sed DEPTC doc dw2gencfi.c dw2gencfi.h dw2gencfi.o dwarf2dbg.c dwarf2dbg.h dwarf2dbg.o ecoff.c ecoff.h ecoff.o ehopt.c ehopt.o emul.h emul-target.h expr.c expr.c.cvs expr.h expr.o flonum-copy.c flonum-copy.o flonum.h flonum-konst.c flonum-konst.o flonum-mult.c flonum-mult.o frags.c frags.h frags.o gdbinit.in hash.c hash.h hash.o input-file.c input-file.h input-file.o input-scrub.c input-scrub.o itbl-cpu.h itbl-lex.h itbl-lex.l itbl-ops.c itbl-ops.h itbl-parse.y libtool listing.c listing.h listing.o literal.c literal.o long.s macro.c macro.c.bak macro.h macro.o MAINTAINERS Makefile Makefile.am Makefile.in messages.c messages.o NEWS obj-coff.o obj-format.h obj.h output-file.c output-file.h output-file.o po read.c read.h README read.o sb.c sb.h sb.o site.bak site.exp stabs.c stabs.o stamp-h1 stamp-h.in struc-symbol.h subsegs.c subsegs.h subsegs.o symbols.c symbols.h symbols.o targ-cpu.h targ-env.h tc.h tc-z80.o testsuite write.c write.h write.o config/tc-z80.c (z80_start_line_hook): issue an error when redefining a symbol with equ acinclude.m4 aclocal.m4 app.c app.o as.c as.h as.h.cvs asintl.h as-new as.o atof-generic.c atof-generic.o atof-ieee.o autom4te.cache bignum.h bit_fix.h cgen.c cgen.h ChangeLog ChangeLog-0001 ChangeLog-0203 ChangeLog.~1.2755.~ ChangeLog-9295 ChangeLog-9697 ChangeLog-9899 cond.c cond.o config config.cache config.h config.in config.log config.status configure configure.in configure.tgt CONTRIBUTORS COPYING CVS debug.c DEP2 DEPDIR depend.c depend.o dep-in.sed DEPOBJ dep.sed DEPTC doc dw2gencfi.c dw2gencfi.h dw2gencfi.o dwarf2dbg.c dwarf2dbg.h dwarf2dbg.o ecoff.c ecoff.h ecoff.o ehopt.c ehopt.o emul.h emul-target.h expr.c expr.c.cvs expr.h expr.o flonum-copy.c flonum-copy.o flonum.h flonum-konst.c flonum-konst.o flonum-mult.c flonum-mult.o frags.c frags.h frags.o gdbinit.in hash.c hash.h hash.o input-file.c input-file.h input-file.o input-scrub.c input-scrub.o itbl-cpu.h itbl-lex.h itbl-lex.l itbl-ops.c itbl-ops.h itbl-parse.y libtool listing.c listing.h listing.o literal.c literal.o long.s macro.c macro.c.bak macro.h macro.o MAINTAINERS Makefile Makefile.am Makefile.in messages.c messages.o NEWS obj-coff.o obj-format.h obj.h output-file.c output-file.h output-file.o po read.c read.h README read.o sb.c sb.h sb.o site.bak site.exp stabs.c stabs.o stamp-h1 stamp-h.in struc-symbol.h subsegs.c subsegs.h subsegs.o symbols.c symbols.h symbols.o targ-cpu.h targ-env.h tc.h tc-z80.o testsuite write.c write.h write.o doc/as.texinfo(equ): mention difference with .equiv acinclude.m4 aclocal.m4 app.c app.o as.c as.h as.h.cvs asintl.h as-new as.o atof-generic.c atof-generic.o atof-ieee.o autom4te.cache bignum.h bit_fix.h cgen.c cgen.h ChangeLog ChangeLog-0001 ChangeLog-0203 ChangeLog.~1.2755.~ ChangeLog-9295 ChangeLog-9697 ChangeLog-9899 cond.c cond.o config config.cache config.h config.in config.log config.status configure configure.in configure.tgt CONTRIBUTORS COPYING CVS debug.c DEP2 DEPDIR depend.c depend.o dep-in.sed DEPOBJ dep.sed DEPTC doc dw2gencfi.c dw2gencfi.h dw2gencfi.o dwarf2dbg.c dwarf2dbg.h dwarf2dbg.o ecoff.c ecoff.h ecoff.o ehopt.c ehopt.o emul.h emul-target.h expr.c expr.c.cvs expr.h expr.o flonum-copy.c flonum-copy.o flonum.h flonum-konst.c flonum-konst.o flonum-mult.c flonum-mult.o frags.c frags.h frags.o gdbinit.in hash.c hash.h hash.o input-file.c input-file.h input-file.o input-scrub.c input-scrub.o itbl-cpu.h itbl-lex.h itbl-lex.l itbl-ops.c itbl-ops.h itbl-parse.y libtool listing.c listing.h listing.o literal.c literal.o long.s macro.c macro.c.bak macro.h macro.o MAINTAINERS Makefile Makefile.am Makefile.in messages.c messages.o NEWS obj-coff.o obj-format.h obj.h output-file.c output-file.h output-file.o po read.c read.h README read.o sb.c sb.h sb.o site.bak site.exp stabs.c stabs.o stamp-h1 stamp-h.in struc-symbol.h subsegs.c subsegs.h subsegs.o symbols.c symbols.h symbols.o targ-cpu.h targ-env.h tc.h tc-z80.o testsuite write.c write.h write.o doc/as.texinfo(err): fix typo acinclude.m4 aclocal.m4 app.c app.o as.c as.h as.h.cvs asintl.h as-new as.o atof-generic.c atof-generic.o atof-ieee.o autom4te.cache bignum.h bit_fix.h cgen.c cgen.h ChangeLog ChangeLog-0001 ChangeLog-0203 ChangeLog.~1.2755.~ ChangeLog-9295 ChangeLog-9697 ChangeLog-9899 cond.c cond.o config config.cache config.h config.in config.log config.status configure configure.in configure.tgt CONTRIBUTORS COPYING CVS debug.c DEP2 DEPDIR depend.c depend.o dep-in.sed DEPOBJ dep.sed DEPTC doc dw2gencfi.c dw2gencfi.h dw2gencfi.o dwarf2dbg.c dwarf2dbg.h dwarf2dbg.o ecoff.c ecoff.h ecoff.o ehopt.c ehopt.o emul.h emul-target.h expr.c expr.c.cvs expr.h expr.o flonum-copy.c flonum-copy.o flonum.h flonum-konst.c flonum-konst.o flonum-mult.c flonum-mult.o frags.c frags.h frags.o gdbinit.in hash.c hash.h hash.o input-file.c input-file.h input-file.o input-scrub.c input-scrub.o itbl-cpu.h itbl-lex.h itbl-lex.l itbl-ops.c itbl-ops.h itbl-parse.y libtool listing.c listing.h listing.o literal.c literal.o long.s macro.c macro.c.bak macro.h macro.o MAINTAINERS Makefile Makefile.am Makefile.in messages.c messages.o NEWS obj-coff.o obj-format.h obj.h output-file.c output-file.h output-file.o po read.c read.h README read.o sb.c sb.h sb.o site.bak site.exp stabs.c stabs.o stamp-h1 stamp-h.in struc-symbol.h subsegs.c subsegs.h subsegs.o symbols.c symbols.h symbols.o targ-cpu.h targ-env.h tc.h tc-z80.o testsuite write.c write.h write.o doc/c-z80.texi(equ): redefining a symbol with equ is no longer allowed --- gas/ChangeLog | 9 +++++++++ gas/config/tc-z80.c | 13 +++++++++---- gas/doc/as.texinfo | 3 ++- gas/doc/c-z80.texi | 7 +++---- 4 files changed, 23 insertions(+), 9 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index 9044220deda..055983f8b6f 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,12 @@ +2005-11-26 Arnold Metselaar + + * config/tc-z80.c (z80_start_line_hook): issue an error when + redefining a symbol with equ + * doc/as.texinfo(equ): mention difference with .equiv + * doc/as.texinfo(err): fix typo + * doc/c-z80.texi(equ): redefining a symbol with equ is no longer + allowed + 2005-11-24 John David Anglin Bug gas/1896 diff --git a/gas/config/tc-z80.c b/gas/config/tc-z80.c index 28f69b1d54b..09fd1c3b401 100644 --- a/gas/config/tc-z80.c +++ b/gas/config/tc-z80.c @@ -267,6 +267,7 @@ z80_start_line_hook (void) { char c, *rest, *line_start; int len; + symbolS * symbolP; line_start = input_line_pointer; LISTING_NEWLINE (); @@ -293,10 +294,14 @@ z80_start_line_hook (void) if (line_start[-1] == '\n') bump_line_counters (); /* Most Z80 assemblers require the first definition of a - label to use "EQU" and redefinitions to have "DEFL". - That does not fit the way GNU as deals with labels, so - GNU as is more permissive. */ - equals (line_start, TRUE); + label to use "EQU" and redefinitions to have "DEFL". */ + if (len == 3 && (symbolP = symbol_find (line_start)) != NULL) + { + if (S_IS_DEFINED (symbolP) || symbol_equated_p (symbolP)) + as_bad (_("symbol `%s' is already defined"), line_start); + } + /* All symbols may be redefined. */ + equals (line_start, 1); return 1; } else diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index cb1c26b062e..b6879e27709 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -4324,6 +4324,7 @@ The syntax for @code{equ} on the HPPA is The syntax for @code{equ} on the Z80 is @samp{@var{symbol} equ @var{expression}}. On the Z80 it is an eror if @var{symbol} is already defined, +but the symbol is not protected from later redefinition, compare @xref{Equiv}. @end ifset @@ -4357,7 +4358,7 @@ value is taken. @cindex @code{err} directive If @command{@value{AS}} assembles a @code{.err} directive, it will print an error message and, unless the @option{-Z} option was used, it will not generate an -object file. This can be used to signal error an conditionally compiled code. +object file. This can be used to signal an error in conditionally compiled code. @node Error @section @code{.error "@var{string}"} diff --git a/gas/doc/c-z80.texi b/gas/doc/c-z80.texi index f650581c0e9..c3e64bf9252 100644 --- a/gas/doc/c-z80.texi +++ b/gas/doc/c-z80.texi @@ -7,7 +7,6 @@ @chapter Z80 Dependent Features @end ifset -@c DO-NOT-COMMIT @ifclear GENERIC @node Machine Dependencies @@ -168,9 +167,9 @@ Fill @var{count} bytes in the object file with @var{value}, if @item @var{symbol} equ @var{expression} @itemx @var{symbol} defl @var{expression} -These directives set the value of @var{symbol} to @var{expression}. To -keep code portable to other assemblers it is best to use @samp{equ} for -the first definition and @samp{defl} for redefinitions. +These directives set the value of @var{symbol} to @var{expression}. If +@code{equ} is used, it is an error if @var{symbol} is already defined. +Symbols defined with @code{equ} are not protected from redefinition. @item set This is a normal instruction on Z80, and not an assembler directive. -- 2.30.2