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-rw-r--r--ld/ChangeLog41
-rw-r--r--ld/Makefile.in11
-rw-r--r--ld/emultempl/hppaelf.em40
-rw-r--r--ld/emultempl/m88kbcs.em4
-rw-r--r--ld/ld.texinfo461
-rw-r--r--ld/ldgram.y328
-rw-r--r--ld/ldlex.h13
-rw-r--r--ld/ldlex.l347
-rw-r--r--ld/ldmain.c14
-rw-r--r--ld/lexsup.c322
10 files changed, 731 insertions, 850 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index b1cd688..827c817 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,44 @@
+Thu Feb 24 12:27:07 1994 David J. Mackenzie (djm@rtl.cygnus.com)
+
+ Use getopt instead of lex and yacc to parse the command line.
+
+ * ld.texinfo (Options): Document changes to option syntax.
+ * Makefile.in: Update dependencies.
+ * ldver.c (help): Tweak dashes in usage message.
+ * ldgram.y (%union): Remove unused members.
+ Remove %tokens for command line options; add ones for input types.
+ (command_line): Rules removed.
+ (file): Instead of command line, recognize an
+ input type indicator, then use the nonterminal for that type.
+ (defsym_expr): New nonterminal from code formerly in command_line.
+ * ldlex.h: Declare parser input type enum and variable.
+ Don't declare parse_line.
+ * ldlex.l: Remove unused variables. Make some used ones static
+ and comment them.
+ (COMMAND): Start state and its rules removed.
+ At start of yylex, return input state token if at start of input.
+ (lex_redirect): Don't need to set yyout.
+ (ldlex_command): Function removed.
+ * ldmain.c (main): Instead of calling parse_line, set up the
+ redirections and call yyparse directly.
+ * ldmisc.c (vfinfo): If there's no input filename, print nothing, not
+ "command line".
+ * lexsup.c: Remove #if 0'd code.
+ (parse_line): Function removed.
+ (parse_args): Rewrite to use getopt_long_only.
+ (set_default_dirlist): New function from code formerly in
+ ldgram.y:command_line.
+ (set_section_start): New function.
+ * emultempl/generic.em, emultempl/gld960.em, emultempl/hppaelf.em,
+ emultempl/lnk960.em, emultempl/m88kbcs.em: Don't enclose
+ compiled-in link scripts in "{" and "}", as the grammar no longer
+ wants them to be.
+
+Thu Feb 24 08:43:26 1994 Ken Raeburn (raeburn@rtl.cygnus.com)
+
+ * Makefile.in (ld.dvi): Depend on configdoc.texi, but don't
+ require that it be in $(srcdir).
+
Tue Feb 22 09:21:18 1994 Ian Lance Taylor (ian@cygnus.com)
* ldlang.c (lang_size_sections): Only align section to alignment
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 316cc8f..d38fe76 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -1,7 +1,7 @@
# Makefile for the GNU linker ld (version 2)
# Copyright (C) 1989, 90, 91, 92, 93, 1994 Free Software Foundation, Inc.
-# This file is part of GNU ld..
+# This file is part of GNU ld.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -496,7 +496,7 @@ configdoc.texi: ${DOCVER}-doc.texi
# TeX output
dvi: ld.dvi
-ld.dvi: $(srcdir)/ld.texinfo $(srcdir)/configdoc.texi $(BFDDIR)/doc/bfdsumm.texi
+ld.dvi: $(srcdir)/ld.texinfo configdoc.texi $(BFDDIR)/doc/bfdsumm.texi
TEXINPUTS=$(BFDDIR)/doc:$$TEXINPUTS $(TEXI2DVI) $(srcdir)/ld.texinfo
ldint.dvi: $(srcdir)/ldint.texinfo
@@ -735,7 +735,7 @@ ldexp.o : ldexp.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
ldgram.h ldlang.h
ldfile.o : ldfile.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
$(INCDIR)/obstack.h ../bfd/sysdep.h $(INCDIR)/fopen-same.h \
- ld.h ldmisc.h ldexp.h ldlang.h ldfile.h ldmain.h ldlex.h
+ ld.h ldmisc.h ldexp.h ldlang.h ldfile.h ldmain.h ldgram.h ldlex.h
ldlang.o : ldlang.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
$(INCDIR)/obstack.h ../bfd/sysdep.h $(INCDIR)/fopen-same.h \
$(INCDIR)/bfdlink.h ld.h ldmain.h ldgram.h ldexp.h \
@@ -747,7 +747,7 @@ ldmain.o : ldmain.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
ldfile.h ldctor.h
ldmisc.o : ldmisc.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
$(INCDIR)/obstack.h ../bfd/sysdep.h $(INCDIR)/fopen-same.h \
- ld.h ldmisc.h ldexp.h ldlang.h ldlex.h ldmain.h ldfile.h
+ ld.h ldmisc.h ldexp.h ldlang.h ldgram.h ldlex.h ldmain.h ldfile.h
ldver.o : ldver.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
$(INCDIR)/obstack.h ../bfd/sysdep.h $(INCDIR)/fopen-same.h \
ld.h ldver.h ldemul.h ldmain.h
@@ -757,7 +757,8 @@ ldwrite.o : ldwrite.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
ldmisc.h ldgram.h ldmain.h
lexsup.o : lexsup.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
$(INCDIR)/obstack.h ../bfd/sysdep.h $(INCDIR)/fopen-same.h \
- ldlex.h ld.h ldexp.h ldgram.h ldmisc.h
+ $(INCDIR)/getopt.h $(INCDIR)/bfdlink.h config.h \
+ ldgram.h ldlex.h ld.h ldexp.h ldgram.h ldmisc.h ldmain.h ldfile.h
mri.o : mri.c ../bfd/bfd.h $(INCDIR)/ansidecl.h $(INCDIR)/obstack.h \
../bfd/sysdep.h $(INCDIR)/fopen-same.h ld.h ldexp.h \
ldlang.h ldmisc.h mri.h ldgram.h
diff --git a/ld/emultempl/hppaelf.em b/ld/emultempl/hppaelf.em
index cb01a32..14a2fe8 100644
--- a/ld/emultempl/hppaelf.em
+++ b/ld/emultempl/hppaelf.em
@@ -1,7 +1,7 @@
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >em_${EMULATION_NAME}.c <<EOF
-/* An emulation for HP PA-RISC OSF/1 linkers.
+/* An emulation for HP PA-RISC ELF linkers.
Copyright (C) 1991, 1993 Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
@@ -35,7 +35,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "ldmain.h"
#include "ldctor.h"
-static void hppaosf_before_parse()
+static void hppaelf_before_parse()
{
link_info.lprefix = "L$";
link_info.lprefix_len = 2;
@@ -48,7 +48,7 @@ static lang_input_statement_type *stub_file = 0;
static lang_input_section_type *stub_input_section = NULL;
static void
-hppaosf_search_for_padding_statements(s,prev)
+hppaelf_search_for_padding_statements(s,prev)
lang_statement_union_type *s;
lang_statement_union_type **prev;
{
@@ -58,14 +58,14 @@ hppaosf_search_for_padding_statements(s,prev)
switch (s->header.type)
{
case lang_constructors_statement_enum:
- hppaosf_search_for_padding_statements (constructor_list.head,&constructor_list.head);
+ hppaelf_search_for_padding_statements (constructor_list.head,&constructor_list.head);
break;
case lang_output_section_statement_enum:
- hppaosf_search_for_padding_statements
+ hppaelf_search_for_padding_statements
(s->output_section_statement.children.head,&s->output_section_statement.children.head);
break;
case lang_wild_statement_enum:
- hppaosf_search_for_padding_statements
+ hppaelf_search_for_padding_statements
(s->wild_statement.children.head,&s->wild_statement.children.head);
break;
case lang_data_statement_enum:
@@ -96,7 +96,7 @@ hppaosf_search_for_padding_statements(s,prev)
}
static void
-hppaosf_finish()
+hppaelf_finish()
{
extern asymbol *hppa_look_for_stubs_in_section();
@@ -151,12 +151,12 @@ hppaosf_finish()
/* If we've added stubs,remove the padding_statements because */
/* they are no longer valid */
- hppaosf_search_for_padding_statements(stat_ptr->head,&(stat_ptr->head));
+ hppaelf_search_for_padding_statements(stat_ptr->head,&(stat_ptr->head));
}
}
static void
-hppaosf_create_output_section_statements()
+hppaelf_create_output_section_statements()
{
asection *stub_sec;
asection *output_text_sec = bfd_make_section_old_way(output_bfd,".text");
@@ -215,7 +215,7 @@ hppaosf_create_output_section_statements()
}
static void
-hppaosf_set_output_arch()
+hppaelf_set_output_arch()
{
/* Set the output architecture and machine if possible */
unsigned long machine = 0;
@@ -223,7 +223,7 @@ hppaosf_set_output_arch()
}
static char *
-hppaosf_get_script(isfile)
+hppaelf_get_script(isfile)
int *isfile;
EOF
@@ -234,8 +234,8 @@ then
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
-1s/^/"{/
-$s/$/n}"/
+1s/^/"/
+$s/$/n"/
'
cat >>em_${EMULATION_NAME}.c <<EOF
@@ -279,20 +279,20 @@ fi
cat >>em_${EMULATION_NAME}.c <<EOF
-struct ld_emulation_xfer_struct ld_hppaosf_emulation =
+struct ld_emulation_xfer_struct ld_hppaelf_emulation =
{
- hppaosf_before_parse,
+ hppaelf_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
- hppaosf_set_output_arch,
+ hppaelf_set_output_arch,
ldemul_default_target,
before_allocation_default,
- hppaosf_get_script,
- "hppaosf",
+ hppaelf_get_script,
+ "hppaelf",
"elf32-hppa",
- hppaosf_finish,
- hppaosf_create_output_section_statements
+ hppaelf_finish,
+ hppaelf_create_output_section_statements
};
EOF
diff --git a/ld/emultempl/m88kbcs.em b/ld/emultempl/m88kbcs.em
index a142450..73cae7a 100644
--- a/ld/emultempl/m88kbcs.em
+++ b/ld/emultempl/m88kbcs.em
@@ -57,8 +57,8 @@ then
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
-1s/^/"{/
-$s/$/n}"/
+1s/^/"/
+$s/$/n"/
'
cat >>em_${EMULATION_NAME}.c <<EOF
diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 4c929ac..d2714c0 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -17,7 +17,7 @@ END-INFO-DIR-ENTRY
@ifinfo
This file documents the GNU linker LD.
-Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
@@ -48,7 +48,7 @@ notice identical to this one except for the removal of this paragraph
@subtitle The GNU linker
@sp 1
@subtitle @code{ld} version 2
-@subtitle March 1993
+@subtitle January 1994
@author Steve Chamberlain and Roland Pesch
@author Cygnus Support
@page
@@ -58,13 +58,14 @@ notice identical to this one except for the removal of this paragraph
\hfill Cygnus Support\par
\hfill steve\@cygnus.com, pesch\@cygnus.com\par
\hfill {\it Using LD, the GNU linker}\par
-\hfill Edited by Jeffrey Osier (jeffrey\@cygnus.com), March 1993.\par
+\hfill Edited by Jeffrey Osier (jeffrey\@cygnus.com)\par
+\hfill and Roland Pesch (pesch\@cygnus.com)\par
}
\global\parindent=0pt % Steve likes it this way.
@end tex
@vskip 0pt plus 1filll
-Copyright @copyright{} 1991, 1992, 1993 Free Software Foundation, Inc.
+Copyright @copyright{} 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
@@ -129,8 +130,7 @@ This version of @code{ld} uses the general purpose BFD libraries
to operate on object files. This allows @code{ld} to read, combine, and
write object files in many different formats---for example, COFF or
@code{a.out}. Different formats may be linked together to produce any
-available kind of object file. @xref{BFD} for a list of formats
-supported on various architectures.
+available kind of object file. @xref{BFD}, for more information.
@end ifclear
Aside from its flexibility, the GNU linker is more helpful than other
@@ -168,15 +168,15 @@ ld [ -o @var{output} ] @var{objfile}@dots{}
[ -c @var{MRI-commandfile} ] [ -d | -dc | -dp ]
[ -defsym @var{symbol}=@var{expression} ]
[ -e @var{entry} ] [ -F ] [ -F @var{format} ]
- [ -format @var{input-format} ] [ -g ] [ -G @var{size} ] [ --help ] [ -i ]
- [ -l@var{archive} ] [ -L@var{searchdir} ] [ -M ] [ -Map @var{mapfile} ]
- [ -m @var{emulation} ] [ -N | -n ] [ -noinhibit-exec ]
- [ -oformat @var{output-format} ] [ -R @var{filename} ] [ -relax ]
- [ -retain-symbols-file @var{filename} ]
+ [ -format @var{input-format} ] [ -g ] [ -G @var{size} ] [ -help ]
+ [ -i ] [ -l@var{archive} ] [ -L@var{searchdir} ] [ -M ]
+ [ -Map @var{mapfile} ] [ -m @var{emulation} ] [ -N | -n ]
+ [ -noinhibit-exec ] [ -oformat @var{output-format} ]
+ [ -R @var{filename} ] [ -relax ] [ -retain-symbols-file @var{filename} ]
[ -r | -Ur ] [ -S ] [ -s ] [ -sort-common ] [ -stats ]
[ -T @var{commandfile} ]
[ -Ttext @var{org} ] [ -Tdata @var{org} ]
- [ -Tbss @var{org} ] [ -t ] [ -u @var{symbol}] [-V] [-v] [ --version ]
+ [ -Tbss @var{org} ] [ -t ] [ -u @var{symbol}] [-V] [-v] [ -version ]
[ -warn-common ] [ -y @var{symbol} ] [ -X ] [-x ]
@end smallexample
@@ -224,10 +224,20 @@ and the script command language. If @emph{no} binary input files at all
are specified, the linker does not produce any output, and issues the
message @samp{No input files}.
-Option arguments must either follow the option letter without intervening
+For options whose names are a single letter,
+option arguments must either follow the option letter without intervening
whitespace, or be given as separate arguments immediately following the
option that requires them.
+For options whose names are multiple letters, either one dash or two can
+precede the option name; for example, @samp{--oformat} and
+@samp{-oformat} are equivalent. Arguments to multiple-letter options
+must either be separated from the option name by an equals sign, or be
+given as separate arguments immediately following the option that
+requires them. For example, @samp{--oformat srec} and
+@samp{--oformat=srec} are equivalent. Unique abbreviations of the names
+of multiple-letter options are accepted.
+
@table @code
@ifset I960
@cindex architectures
@@ -361,14 +371,11 @@ Ignored. Provided for compatibility with other tools.
Set the maximum size of objects to be optimized using the GP register to
@var{size} under MIPS ECOFF. Ignored for other object file formats.
-@item --help
-@kindex --help
@cindex help
@cindex usage
+@kindex -help
+@item -help
Print a summary of the command-line options on the standard output and exit.
-This option and @samp{--version} begin with two dashes instead of one
-for compatibility with other GNU programs. The other options start with
-only one dash for compatibility with other linkers.
@kindex -i
@cindex incremental link
@@ -430,10 +437,10 @@ Set the text and data sections to be readable and writable. Also, do
not page-align the data segment. If the output format supports Unix
style magic numbers, mark the output as @code{OMAGIC}.
-@item -n
@kindex -n
@cindex read-only text
@kindex NMAGIC
+@item -n
Set the text segment to be read only, and mark the output as
@code{NMAGIC} if possible.
@@ -476,10 +483,10 @@ relocate it or include it in the output. This allows your output file
to refer symbolically to absolute locations of memory defined in other
programs.
-@item -relax
@kindex -relax
@cindex synthesizing linker
@cindex relaxing addressing modes
+@item -relax
An option with machine dependent effects.
@ifset GENERIC
Currently this option is only supported on the H8/300 and the Intel 960.
@@ -520,10 +527,10 @@ or symbols needed for relocations.
You may only specify @samp{-retain-symbols-file} once in the command
line. It overrides @samp{-s} and @samp{-S}.
-@item -r
@cindex partial link
@cindex relocatable output
@kindex -r
+@item -r
Generate relocatable output---i.e., generate an output file that can in
turn serve as input to @code{ld}. This is often called @dfn{partial
linking}. As a side effect, in environments that support standard Unix
@@ -536,14 +543,14 @@ constructors; to do that, use @samp{-Ur}.
This option does the same thing as @samp{-i}.
-@item -S
@kindex -S
@cindex strip debugger symbols
+@item -S
Omit debugger symbol information (but not all symbols) from the output file.
-@item -s
@kindex -s
@cindex strip all symbols
+@item -s
Omit all symbol information from the output file.
@item -sort-common
@@ -581,10 +588,10 @@ the target format. @xref{Commands}. If @var{commandfile} does not
exist, @code{ld} looks for it in the directories specified by any
preceding @samp{-L} options. Multiple @samp{-T} options accumulate.
-@item -t
@kindex -t
@cindex verbose
@cindex input files, displaying
+@item -t
Print the names of the input files as @code{ld} processes them.
@item -u @var{symbol}
@@ -597,9 +604,9 @@ arguments to enter additional undefined symbols.
@c Nice idea, but no such command: This option is equivalent
@c to the @code{EXTERN} linker command.
-@item -Ur
@kindex -Ur
@cindex constructors
+@item -Ur
For anything other than C++ programs, this option is equivalent to
@samp{-r}: it generates relocatable output---i.e., an output file that can in
turn serve as input to @code{ld}. When linking C++ programs, @samp{-Ur}
@@ -609,19 +616,19 @@ with @samp{-Ur}; once the constructor table has been built, it cannot
be added to. Use @samp{-Ur} only for the last partial link, and
@samp{-r} for the others.
-@item -V
@kindex -V
@cindex version
+@item -V
Display the version number for @code{ld} and list the linker emulations
supported. Display which input files can and cannot be opened.
-@item -v
@kindex -v
@cindex version
+@item -v
Display the version number for @code{ld}.
-@item --version
-@kindex --version
+@item -version
+@kindex -version
Display the version number for @code{ld} and exit.
@item -warn-common
@@ -709,16 +716,16 @@ encountered in a different order.
@end smallexample
@end enumerate
-@item -X
@kindex -X
@cindex local symbols, deleting
@cindex L, deleting symbols beginning
+@item -X
If @samp{-s} or @samp{-S} is also specified, delete only local symbols
beginning with @samp{L}.
-@item -x
@kindex -x
@cindex deleting local symbols
+@item -x
If @samp{-s} or @samp{-S} is also specified, delete all local symbols,
not just those beginning with @samp{L}.
@@ -944,14 +951,14 @@ counter may never be moved backwards.
@example
SECTIONS
@{
- output :
- @{
- file1(.text)
- . = . + 1000;
- file2(.text)
- . += 1000;
- file3(.text)
- @} = 0x1234;
+ output :
+ @{
+ file1(.text)
+ . = . + 1000;
+ file2(.text)
+ . += 1000;
+ file3(.text)
+ @} = 0x1234;
@}
@end example
@noindent
@@ -961,6 +968,11 @@ appears, also with a 1000 byte gap following before @code{file3} is
loaded. The notation @samp{= 0x1234} specifies what data to write in
the gaps (@pxref{Section Options}).
+@iftex
+@vfill
+@end iftex
+
+@need 5000
@node Operators
@subsection Operators
@cindex Operators for arithmetic
@@ -1112,11 +1124,11 @@ section definition by using the absolute assignment function
is the last byte of an output section named @code{.data}:
@example
SECTIONS@{ @dots{}
-.data :
- @{
- *(.data)
- _edata = ABSOLUTE(.) ;
- @}
+ .data :
+ @{
+ *(.data)
+ _edata = ABSOLUTE(.) ;
+ @}
@dots{} @}
@end example
@@ -1130,9 +1142,9 @@ result of an expression is required, but the value is not available,
then an error results. For example, a script like the following
@example
SECTIONS @{ @dots{}
- text 9+this_isnt_constant :
- @{ @dots{}
- @}
+ text 9+this_isnt_constant :
+ @{ @dots{}
+ @}
@dots{} @}
@end example
@kindex Non constant expression
@@ -1163,16 +1175,16 @@ example, @code{symbol_1} and @code{symbol_2} are assigned identical
values:
@example
SECTIONS@{ @dots{}
- .output1 :
- @{
- start_of_output_1 = ABSOLUTE(.);
- @dots{}
- @}
- .output :
- @{
- symbol_1 = ADDR(.output1);
- symbol_2 = start_of_output_1;
- @}
+ .output1 :
+ @{
+ start_of_output_1 = ABSOLUTE(.);
+ @dots{}
+ @}
+ .output :
+ @{
+ symbol_1 = ADDR(.output1);
+ symbol_2 = start_of_output_1;
+ @}
@dots{} @}
@end example
@@ -1193,10 +1205,10 @@ section and to set a variable within the section to the next
@code{0x8000} boundary after the input sections:
@example
SECTIONS@{ @dots{}
- .data ALIGN(0x2000): @{
- *(.data)
- variable = ALIGN(0x8000);
- @}
+ .data ALIGN(0x2000): @{
+ *(.data)
+ variable = ALIGN(0x8000);
+ @}
@dots{} @}
@end example
@noindent
@@ -1216,12 +1228,13 @@ values for symbols. For example, the following command-file fragment shows how
to set a global symbol @code{begin} to the first location in the
@code{.text} section---but if a symbol called @code{begin} already
existed, its value is preserved:
+
@smallexample
SECTIONS@{ @dots{}
- .text : @{
- begin = DEFINED(begin) ? begin : . ;
- @dots{}
- @}
+ .text : @{
+ begin = DEFINED(begin) ? begin : . ;
+ @dots{}
+ @}
@dots{} @}
@end smallexample
@@ -1242,13 +1255,13 @@ been allocated. In the following example, @code{symbol_1} and
@c What does it return if the section hasn't been allocated? 0?
@example
SECTIONS@{ @dots{}
- .output @{
- .start = . ;
- @dots{}
- .end = . ;
- @}
- symbol_1 = .end - .start ;
- symbol_2 = SIZEOF(.output);
+ .output @{
+ .start = . ;
+ @dots{}
+ .end = . ;
+ @}
+ symbol_1 = .end - .start ;
+ symbol_2 = SIZEOF(.output);
@dots{} @}
@end example
@@ -1285,37 +1298,40 @@ you wish. The syntax is:
@example
MEMORY
- @{
- @var{name} (@var{attr}) : ORIGIN = @var{origin}, LENGTH = @var{len}
- @dots{}
- @}
+ @{
+ @var{name} (@var{attr}) : ORIGIN = @var{origin}, LENGTH = @var{len}
+ @dots{}
+ @}
@end example
@table @code
-@item @var{name}
@cindex naming memory regions
+@item @var{name}
is a name used internally by the linker to refer to the region. Any
symbol name may be used. The region names are stored in a separate
name space, and will not conflict with symbols, file names or section
names. Use distinct names to specify multiple regions.
-@item (@var{attr})
+
@cindex memory region attributes
+@item (@var{attr})
is an optional list of attributes, permitted for compatibility with the
AT&T linker but not used by @code{ld} beyond checking that the
attribute list is valid. Valid attribute lists must be made up of the
characters ``@code{LIRWX}''. If you omit the attribute list, you may
omit the parentheses around it as well.
-@item @var{origin}
+
@kindex ORIGIN =
@kindex o =
@kindex org =
+@item @var{origin}
is the start address of the region in physical memory. It is
an expression that must evaluate to a constant before
memory allocation is performed. The keyword @code{ORIGIN} may be
abbreviated to @code{org} or @code{o} (but not, for example, @samp{ORG}).
-@item @var{len}
+
@kindex LENGTH =
@kindex len =
@kindex l =
+@item @var{len}
is the size in bytes of the region (an expression).
The keyword @code{LENGTH} may be abbreviated to @code{len} or @code{l}.
@end table
@@ -1326,10 +1342,10 @@ starting at @code{0x40000000} for four megabytes:
@example
MEMORY
- @{
- rom : ORIGIN = 0, LENGTH = 256K
- ram : org = 0x40000000, l = 4M
- @}
+ @{
+ rom : ORIGIN = 0, LENGTH = 256K
+ ram : org = 0x40000000, l = 4M
+ @}
@end example
Once you have defined a region of memory named @var{mem}, you can direct
@@ -1392,9 +1408,9 @@ these specifications are optional; the simplest form of a section
definition is
@example
SECTIONS @{ @dots{}
-@var{secname} : @{
- @var{contents}
- @}
+ @var{secname} : @{
+ @var{contents}
+ @}
@dots{} @}
@end example
@cindex naming output sections
@@ -1432,10 +1448,10 @@ like in a single section definition, separated from one another by
whitespace.
@table @code
-@item @var{filename}
@kindex @var{filename}
@cindex input files, section defn
@cindex files, including in output sections
+@item @var{filename}
You may simply name a particular input file to be placed in the current
output section; @emph{all} sections from that file are placed in the
current section definition. If the file name has already been mentioned
@@ -1451,21 +1467,21 @@ The example also illustrates that multiple statements can be included in
the contents of a section definition, since each file name is a separate
statement.
+@kindex @var{filename}(@var{section})
+@cindex files and sections, section defn
@item @var{filename}( @var{section} )
@itemx @var{filename}( @var{section}, @var{section}, @dots{} )
@itemx @var{filename}( @var{section} @var{section} @dots{} )
-@kindex @var{filename}(@var{section})
-@cindex files and sections, section defn
You can name one or more sections from your input files, for
insertion in the current output section. If you wish to specify a list
of input-file sections inside the parentheses, you may separate the
section names by either commas or whitespace.
+@cindex input sections to output section
+@kindex *(@var{section})
@item * (@var{section})
@itemx * (@var{section}, @var{section}, @dots{})
@itemx * (@var{section} @var{section} @dots{})
-@cindex input sections to output section
-@kindex *(@var{section})
Instead of explicitly naming particular input files in a link control
script, you can refer to @emph{all} files from the @code{ld} command
line: use @samp{*} instead of a particular file name before the
@@ -1480,26 +1496,27 @@ into the @code{.text} section of an @code{a.out} file, and sections @code{13}
and @code{14} into the @code{.data} section:
@example
SECTIONS @{
- .text :@{
- *("1" "2" "3" "4")
- @}
-
- .data :@{
- *("13" "14")
- @}
+ .text :@{
+ *("1" "2" "3" "4")
+ @}
+
+ .data :@{
+ *("13" "14")
+ @}
@}
@end example
+@cindex @code{[@var{section}@dots{}]}, not supported
@samp{[ @var{section} @dots{} ]} used to be accepted as an alternate way
to specify named sections from all unallocated input files. Because
some operating systems (VMS) allow brackets in file names, that notation
is no longer supported.
-@item @var{filename}@code{( COMMON )}
-@itemx *( COMMON )
-@kindex *( COMMON )
@cindex uninitialized data
@cindex commons in output
+@kindex *( COMMON )
+@item @var{filename}@code{( COMMON )}
+@itemx *( COMMON )
Specify where in your output file to place uninitialized data
with this notation. @code{*(COMMON)} by itself refers to all
uninitialized data from all input files (so far as it is not yet
@@ -1515,6 +1532,7 @@ For example, the following command script arranges the output file into
three consecutive sections, named @code{.text}, @code{.data}, and
@code{.bss}, taking the input for each from the correspondingly named
sections of all the input files:
+
@example
SECTIONS @{
.text : @{ *(.text) @}
@@ -1534,21 +1552,21 @@ files are written to output section @code{outputc}.
@example
SECTIONS @{
- outputa 0x10000 :
- @{
- all.o
- foo.o (.input1)
- @}
- outputb :
- @{
- foo.o (.input2)
- foo1.o (.input1)
- @}
- outputc :
- @{
- *(.input1)
- *(.input2)
- @}
+ outputa 0x10000 :
+ @{
+ all.o
+ foo.o (.input1)
+ @}
+ outputb :
+ @{
+ foo.o (.input2)
+ foo1.o (.input1)
+ @}
+ outputc :
+ @{
+ *(.input1)
+ *(.input2)
+ @}
@}
@end example
@@ -1566,10 +1584,10 @@ command; you can intermix them freely with any of the statements we've
just described.
@table @code
-@item CREATE_OBJECT_SYMBOLS
-@kindex CREATE_OBJECT_SYMBOLS
@cindex input filename symbols
@cindex filename symbols
+@kindex CREATE_OBJECT_SYMBOLS
+@item CREATE_OBJECT_SYMBOLS
Create a symbol for each input file
in the current section, set to the address of the first byte of
data written from that input file. For instance, with @code{a.out}
@@ -1577,13 +1595,13 @@ files it is conventional to have a symbol for each input file. You can
accomplish this by defining the output @code{.text} section as follows:
@example
SECTIONS @{
- .text 0x2020 :
- @{
- CREATE_OBJECT_SYMBOLS
- *(.text)
- _etext = ALIGN(0x2000);
- @}
- @dots{}
+ .text 0x2020 :
+ @{
+ CREATE_OBJECT_SYMBOLS
+ *(.text)
+ _etext = ALIGN(0x2000);
+ @}
+ @dots{}
@}
@end example
@@ -1624,10 +1642,10 @@ containing symbols matching the object file names:
00002068 t d.o
@end example
-@item @var{symbol} = @var{expression} ;
@kindex @var{symbol} = @var{expression} ;
-@itemx @var{symbol} @var{f}= @var{expression} ;
@kindex @var{symbol} @var{f}= @var{expression} ;
+@item @var{symbol} = @var{expression} ;
+@itemx @var{symbol} @var{f}= @var{expression} ;
@var{symbol} is any symbol name (@pxref{Symbols}). ``@var{f}=''
refers to any of the operators @code{&= += -= *= /=} which combine
arithmetic and assignment.
@@ -1636,6 +1654,7 @@ arithmetic and assignment.
When you assign a value to a symbol within a particular section
definition, the value is relative to the beginning of the section
(@pxref{Assignment}). If you write
+
@example
SECTIONS @{
abs = 14 ;
@@ -1645,20 +1664,21 @@ SECTIONS @{
@dots{}
@}
@end example
+
@c FIXME: Try above example!
@noindent
@code{abs} and @code{rel} do not have the same value; @code{rel} has the
same value as @code{abs2}.
-@item BYTE(@var{expression})
@kindex BYTE(@var{expression})
-@itemx SHORT(@var{expression})
@kindex SHORT(@var{expression})
-@itemx LONG(@var{expression})
@kindex LONG(@var{expression})
-@itemx QUAD(@var{expression})
@kindex QUAD(@var{expression})
@cindex direct output
+@item BYTE(@var{expression})
+@itemx SHORT(@var{expression})
+@itemx LONG(@var{expression})
+@itemx QUAD(@var{expression})
By including one of these four statements in a section definition, you
can explicitly place one, two, four, or eight bytes (respectively) at
the current address of that section. @code{QUAD} is only supported when
@@ -1693,7 +1713,7 @@ optional portions:
SECTIONS @{
@dots{}
@var{secname} @var{start} BLOCK(@var{align}) (NOLOAD) : AT ( @var{ldadr} )
- @{ @var{contents} @} =@var{fill} >@var{region}
+ @{ @var{contents} @} =@var{fill} >@var{region}
@dots{}
@}
@end smallexample
@@ -1705,29 +1725,30 @@ Definition}, and @pxref{Section Placement} for details on
@code{=@var{fill}}, and @code{>@var{region}}---are all optional.
@table @code
-@item @var{start}
@cindex start address, section
@cindex section start
@cindex section address
+@item @var{start}
You can force the output section to be loaded at a specified address by
specifying @var{start} immediately following the section name.
@var{start} can be represented as any expression. The following
example generates section @var{output} at location
@code{0x40000000}:
+
@example
SECTIONS @{
- @dots{}
- output 0x40000000: @{
- @dots{}
- @}
- @dots{}
+ @dots{}
+ output 0x40000000: @{
+ @dots{}
+ @}
+ @dots{}
@}
@end example
-@item BLOCK(@var{align})
@kindex BLOCK(@var{align})
@cindex section alignment
@cindex aligning sections
+@item BLOCK(@var{align})
You can include @code{BLOCK()} specification to advance
the location counter @code{.} prior to the beginning of the section, so
that the section will begin at the specified alignment. @var{align} is
@@ -1744,8 +1765,8 @@ need to be loaded into each object file:
@example
SECTIONS @{
- ROM 0 (NOLOAD) : @{ @dots{} @}
- @dots{}
+ ROM 0 (NOLOAD) : @{ @dots{} @}
+ @dots{}
@}
@end example
@@ -1795,24 +1816,22 @@ for (dst = _bstart; dst< _bend; dst++)
*dst = 0;
@end smallexample
-@item =@var{fill}
@kindex =@var{fill}
@cindex section fill pattern
@cindex fill pattern, entire section
-Including
-@code{=@var{fill}} in a section definition specifies the initial fill
-value for that section.
-You may use any expression to specify @var{fill}.
-Any unallocated holes in the current output
-section when written to the output file will be filled with the two
-least significant bytes of the value, repeated as necessary. You can
-also change the fill value with a @code{FILL} statement in the
-@var{contents} of a section definition.
+@item =@var{fill}
+Including @code{=@var{fill}} in a section definition specifies the
+initial fill value for that section. You may use any expression to
+specify @var{fill}. Any unallocated holes in the current output section
+when written to the output file will be filled with the two least
+significant bytes of the value, repeated as necessary. You can also
+change the fill value with a @code{FILL} statement in the @var{contents}
+of a section definition.
-@item >@var{region}
@kindex >@var{region}
@cindex section, assigning to memory region
@cindex memory regions and sections
+@item >@var{region}
Assign this section to a previously defined region of memory.
@xref{MEMORY}.
@@ -1858,6 +1877,7 @@ For example, you can use these rules to generate an entry point with an
assignment statement: if no symbol @code{start} is defined within your
input files, you can simply define it, assigning it an appropriate
value---
+
@example
start = 0x2020;
@end example
@@ -1867,6 +1887,7 @@ The example shows an absolute address, but you can use any expression.
For example, if your input object files use some other symbol-name
convention for the entry point, you can just assign the value of
whatever symbol contains the start address to @code{start}:
+
@example
start = other_symbol ;
@end example
@@ -1895,6 +1916,7 @@ must arrange to actually run this code; GNU C++ calls constructors from
a subroutine @code{__main}, which it inserts automatically into the
startup code for @code{main}, and destructors from @code{_exit}.)
+@need 1000
@kindex FLOAT
@kindex NOFLOAT
@item FLOAT
@@ -2110,113 +2132,17 @@ not itself call any subroutines).
@cindex back end
@cindex object file management
+@cindex object formats available
+@kindex objdump -i
The linker accesses object and archive files using the BFD libraries.
These libraries allow the linker to use the same routines to operate on
object files whatever the object file format. A different object file
format can be supported simply by creating a new BFD back end and adding
-it to the library. You can use @code{objdump -i}
+it to the library. To conserve runtime memory, however, the linker and
+associated tools are usually configured to support only a subset of the
+object file formats available. You can use @code{objdump -i}
(@pxref{objdump,,objdump,binutils.info,The GNU Binary Utilities}) to
-list all the formats available for each architecture under BFD. This
-was the list of formats, and of architectures supported for each format,
-as of the time this manual was prepared:
-@cindex formats available
-@cindex architectures available
-@example
-BFD header file version 0.18
-a.out-i386
- (header big endian, data big endian)
- m68k:68020
- a29k
- sparc
- i386
-a.out-sunos-big
- (header big endian, data big endian)
- m68k:68020
- a29k
- sparc
- i386
-b.out.big
- (header big endian, data little endian)
- i960:core
-b.out.little
- (header little endian, data little endian)
- i960:core
-coff-a29k-big
- (header big endian, data big endian)
- a29k
-coff-h8300
- (header big endian, data big endian)
- H8/300
-coff-i386
- (header little endian, data little endian)
- i386
-coff-Intel-big
- (header big endian, data little endian)
- i960:core
-coff-Intel-little
- (header little endian, data little endian)
- i960:core
-coff-m68k
- (header big endian, data big endian)
- m68k:68020
-coff-m88kbcs
- (header big endian, data big endian)
- m88k:88100
-ecoff-bigmips
- (header big endian, data big endian)
- mips
-ecoff-littlemips
- (header little endian, data little endian)
- mips
-elf-big
- (header big endian, data big endian)
- m68k:68020
- vax
- i960:core
- a29k
- sparc
- mips
- i386
- m88k:88100
- H8/300
- rs6000:6000
-elf-little
- (header little endian, data little endian)
- m68k:68020
- vax
- i960:core
- a29k
- sparc
- mips
- i386
- m88k:88100
- H8/300
- rs6000:6000
-ieee
- (header big endian, data big endian)
- m68k:68020
- vax
- i960:core
- a29k
- sparc
- mips
- i386
- m88k:88100
- H8/300
- rs6000:6000
-srec
- (header big endian, data big endian)
- m68k:68020
- vax
- i960:core
- a29k
- sparc
- mips
- i386
- m88k:88100
- H8/300
- rs6000:6000
-@end example
+list all the formats available for your configuration.
@cindex BFD requirements
@cindex requirements for BFD
@@ -2274,9 +2200,9 @@ lower case; for example, @samp{chip} is the same as @samp{CHIP}.
The following list shows only the upper-case form of each command.
@table @code
+@cindex @code{ABSOLUTE} (MRI)
@item ABSOLUTE @var{secname}
@item ABSOLUTE @var{secname}, @var{secname}, @dots{} @var{secname}
-@cindex @code{ABSOLUTE} (MRI)
Normally, @code{ld} includes in the output file all sections from all
the input files. However, in an MRI-compatible script, you can use the
@code{ABSOLUTE} command to restrict the sections that will be present in
@@ -2286,31 +2212,32 @@ commands will appear in the linker output. You can still use other
input sections (whatever you select on the command line, or using
@code{LOAD}) to resolve addresses in the output file.
-@item ALIAS @var{out-secname}, @var{in-secname}
@cindex @code{ALIAS} (MRI)
+@item ALIAS @var{out-secname}, @var{in-secname}
Use this command to place the data from input section @var{in-secname}
in a section called @var{out-secname} in the linker output file.
@var{in-secname} may be an integer.
-@item BASE @var{expression}
@cindex @code{BASE} (MRI)
+@item BASE @var{expression}
Use the value of @var{expression} as the lowest address (other than
absolute addresses) in the output file.
+@cindex @code{CHIP} (MRI)
@item CHIP @var{expression}
@itemx CHIP @var{expression}, @var{expression}
-@cindex @code{CHIP} (MRI)
This command does nothing; it is accepted only for compatibility.
-@item END
@cindex @code{END} (MRI)
+@item END
This command does nothing whatever; it's only accepted for compatibility.
-@item FORMAT @var{output-format}
@cindex @code{FORMAT} (MRI)
+@item FORMAT @var{output-format}
Similar to the @code{OUTPUT_FORMAT} command in the more general linker
language, but restricted to one of these output formats:
+
@enumerate
@item
S-records, if @var{output-format} is @samp{S}
@@ -2323,47 +2250,47 @@ COFF (the @samp{coff-m68k} variant in BFD), if @var{output-format} is
@samp{COFF}
@end enumerate
-@item LIST @var{anything}@dots{}
@cindex @code{LIST} (MRI)
+@item LIST @var{anything}@dots{}
Print (to the standard output file) a link map, as produced by the
@code{ld} command-line option @samp{-M}.
The keyword @code{LIST} may be followed by anything on the
same line, with no change in its effect.
+@cindex @code{LOAD} (MRI)
@item LOAD @var{filename}
@item LOAD @var{filename}, @var{filename}, @dots{} @var{filename}
-@cindex @code{LOAD} (MRI)
Include one or more object file @var{filename} in the link; this has the
same effect as specifying @var{filename} directly on the @code{ld}
command line.
-@item NAME @var{output-name}
@cindex @code{NAME} (MRI)
+@item NAME @var{output-name}
@var{output-name} is the name for the program produced by @code{ld}; the
MRI-compatible command @code{NAME} is equivalent to the command-line
option @samp{-o} or the general script language command @code{OUTPUT}.
+@cindex @code{ORDER} (MRI)
@item ORDER @var{secname}, @var{secname}, @dots{} @var{secname}
@itemx ORDER @var{secname} @var{secname} @var{secname}
-@cindex @code{ORDER} (MRI)
Normally, @code{ld} orders the sections in its output file in the
order in which they first appear in the input files. In an MRI-compatible
script, you can override this ordering with the @code{ORDER} command. The
sections you list with @code{ORDER} will appear first in your output
file, in the order specified.
+@cindex @code{PUBLIC} (MRI)
@item PUBLIC @var{name}=@var{expression}
@itemx PUBLIC @var{name},@var{expression}
@itemx PUBLIC @var{name} @var{expression}
-@cindex @code{PUBLIC} (MRI)
Supply a value (@var{expression}) for external symbol
@var{name} used in the linker input files.
+@cindex @code{SECT} (MRI)
@item SECT @var{secname}, @var{expression}
@itemx SECT @var{secname}=@var{expression}
@itemx SECT @var{secname} @var{expression}
-@cindex @code{SECT} (MRI)
You can use any of these three forms of the @code{SECT} command to
specify the start address (@var{expression}) for section @var{secname}.
If you have more than one @code{SECT} statement for the same
diff --git a/ld/ldgram.y b/ld/ldgram.y
index dc196aec..e3504f1 100644
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -65,21 +65,9 @@ static int error_index;
%}
%union {
bfd_vma integer;
- int voidval;
char *name;
int token;
union etree_union *etree;
- struct sec *section;
- struct lang_output_section_statement_struct *output_section_statement;
- union lang_statement_union **statement_ptr;
- int lineno;
- struct {
- FILE *file;
- char *name;
- unsigned int lineno;
- } state;
-
-
}
%type <etree> exp opt_exp_with_type mustbe_exp opt_at
@@ -103,326 +91,48 @@ static int error_index;
%left <token> '+' '-'
%left <token> '*' '/' '%'
-/*%token <token> '+' '-' '*' '/' '%'*/
%right UNARY
%token END
%left <token> '('
%token <token> ALIGN_K BLOCK QUAD LONG SHORT BYTE
-%token SECTIONS
+%token SECTIONS
%token '{' '}'
%token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
%token SIZEOF_HEADERS
%token INCLUDE
-%token MEMORY DEFSYMEND
+%token MEMORY DEFSYMEND
%token NOLOAD DSECT COPY INFO OVERLAY
-%token NAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
-%token OPTION_e OPTION_c OPTION_noinhibit_exec OPTION_s OPTION_S OPTION_sort_common OPTION_warn_common
-%token OPTION_EB OPTION_EL OPTION_G OPTION_Gval OPTION_help
-%token OPTION_format OPTION_oformat OPTION_F OPTION_u OPTION_y OPTION_Bstatic OPTION_N
-%token <integer> SIZEOF NEXT ADDR
-%token OPTION_d OPTION_dc OPTION_dp OPTION_x OPTION_X OPTION_defsym
-%token OPTION_v OPTION_V OPTION_m OPTION_memul OPTION_M OPTION_t STARTUP HLL SYSLIB FLOAT NOFLOAT
-%token OPTION_L OPTION_Map
-%token OPTION_n OPTION_r OPTION_o OPTION_b OPTION_R OPTION_relax OPTION_version
-%token <name> OPTION_l OPTION_Lfile OPTION_T OPTION_Aarch OPTION_Tfile
-%token <name> OPTION_Texp OPTION_esymbol OPTION_usymbol OPTION_ysymbol
-%token OPTION_Ur
-%token ORIGIN FILL OPTION_g
-%token LENGTH CREATE_OBJECT_SYMBOLS INPUT OUTPUT CONSTRUCTORS
-%token OPTION_RETAIN_SYMBOLS_FILE ALIGNMOD AT
-%token OPTION_Qy OPTION_Y OPTION_dn OPTION_call_shared OPTION_non_shared
-%token OPTION_Oval OPTION_stats OPTION_no_keep_memory
-%token <name> OPTION_YP
-
+%token NAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
+%token <integer> SIZEOF NEXT ADDR
+%token STARTUP HLL SYSLIB FLOAT NOFLOAT
+%token ORIGIN FILL
+%token LENGTH CREATE_OBJECT_SYMBOLS INPUT OUTPUT CONSTRUCTORS
+%token ALIGNMOD AT
%type <token> assign_op
-
%type <name> filename
-
-
%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD
%token FORMAT PUBLIC DEFSYMEND BASE ALIAS TRUNCATE REL
+%token INPUT_SCRIPT INPUT_MRI_SCRIPT INPUT_DEFSYM
%%
-file: command_line
-
-
-filename: NAME;
-
-
-command_line:
- command_line command_line_option
- |
+file:
+ INPUT_SCRIPT script_file
+ | INPUT_MRI_SCRIPT mri_script_file
+ | INPUT_DEFSYM defsym_expr
;
-command_line_option:
- OPTION_Bstatic { }
- | OPTION_help
- {
- help ();
- exit (0);
- }
- | OPTION_v
- {
- ldversion(0);
- version_printed = true;
- }
- | OPTION_V
- {
- ldversion(1);
- version_printed = true;
- trace_file_tries = true;
- }
- | OPTION_version
- {
- ldversion(0);
- version_printed = true;
- }
- | OPTION_t {
- trace_files = true;
- }
- | OPTION_Map NAME
- {
- write_map = true;
- config.map_filename = $2;
- }
- | OPTION_m NAME
- {
- /* Ignore. */
- }
- | OPTION_memul
- {
- /* Ignore. */
- }
- | OPTION_M
- {
- config.map_filename = "-";
- }
- | OPTION_n {
- config.magic_demand_paged = false;
- }
- | OPTION_N {
- config.text_read_only = false;
- config.magic_demand_paged = false;
- }
- | OPTION_s {
- link_info.strip = strip_all;
- }
- | OPTION_S {
- link_info.strip = strip_debugger;
- }
- | OPTION_stats {
- config.stats = true;
- }
- | OPTION_no_keep_memory {
- link_info.keep_memory = false;
- }
- | OPTION_u NAME {
- ldlang_add_undef($2);
- }
- | OPTION_usymbol {
- ldlang_add_undef($1);
- }
- | OPTION_r {
- link_info.relocateable = true;
- config.build_constructors = false;
- config.magic_demand_paged = false;
- config.text_read_only = false;
- }
- | OPTION_Ur {
- link_info.relocateable = true;
- config.build_constructors = true;
- config.magic_demand_paged = false;
- config.text_read_only = false;
- }
- | OPTION_o filename
- {
- lang_add_output($2, 0);
- }
- | OPTION_e NAME
- { lang_add_entry($2);
- }
- | OPTION_esymbol
- { lang_add_entry($1);
- }
- | OPTION_X {
- link_info.discard = discard_l;
- }
- | OPTION_x {
- link_info.discard = discard_all;
- }
-
- | OPTION_noinhibit_exec
- {
- force_make_executable = true;
- }
- | OPTION_sort_common
- {
- config.sort_common = true;
- }
- | OPTION_warn_common
- {
- config.warn_common = true;
- }
- | OPTION_d {
- command_line.force_common_definition = true;
- }
-
- | OPTION_relax {
- command_line.relax = true;
- }
- | OPTION_dc
- {
- command_line.force_common_definition = true;
- }
- | OPTION_g
- {
- /* Ignored */
- }
- | OPTION_dp
- {
- command_line.force_common_definition = true;
- }
- | OPTION_format NAME
- {
- lang_add_target($2);
- }
- | OPTION_oformat NAME
- {
- lang_add_output_format($2, 0);
- }
- | OPTION_Texp
- { ldlex_expression();
- hex_mode = 16;
- }
- INT
- { ldlex_popstate();
- lang_section_start($1,exp_intop($3));
- hex_mode = 0;
- }
- | OPTION_y NAME
- {
- add_ysym($2);
- }
- | OPTION_ysymbol
- {
- add_ysym($1);
- }
- | OPTION_Aarch
- {
- ldfile_add_arch($1);
- }
- | OPTION_b NAME
- {
- lang_add_target($2);
- }
- | OPTION_L NAME
- {
- ldfile_add_library_path($2);
- }
- | OPTION_Lfile
- {
- ldfile_add_library_path($1);
- }
- | OPTION_F
- {
- /* Ignore */
- }
- | OPTION_c filename
- {ldfile_open_command_file($2); }
- mri_script_file END { ldlex_command();}
- | OPTION_Tfile
- { ldfile_open_command_file($1); } script_file
- END { ldlex_command();}
+filename: NAME;
- | OPTION_T filename
- { ldfile_open_command_file($2); } script_file
- END { ldlex_command();}
- | OPTION_l
- {
- lang_add_input_file($1,
- lang_input_file_is_l_enum,
- (char *)NULL);
- }
- | OPTION_R filename
- {
- lang_add_input_file($2,
- lang_input_file_is_symbols_only_enum,
- (char *)NULL);
- }
-
- | OPTION_defsym { ldlex_defsym(); }
- NAME '=' exp DEFSYMEND { ldlex_popstate();
- lang_add_assignment(exp_assop($4,$3,$5));
- }
- | OPTION_RETAIN_SYMBOLS_FILE filename
- { add_keepsyms_file ($2); }
- | OPTION_EB
- {
- /* FIXME: This is currently ignored. It means
- ``produce a big-endian object file''. It could
- be used to select an output format. */
- }
- | OPTION_EL
- {
- /* FIXME: This is currently ignored. It means
- ``produce a little-endian object file''. It could
- be used to select an output format. */
- }
- | OPTION_G NAME
- {
- g_switch_value = atoi ($2);
- }
- | OPTION_Gval
+defsym_expr:
+ { ldlex_defsym(); }
+ NAME '=' exp
{
- g_switch_value = yylval.integer;
- }
- | OPTION_Qy
- | OPTION_dn
- | OPTION_non_shared
- | OPTION_call_shared
- | OPTION_Oval
- | OPTION_YP
- {
- dirlist_ptr = $1;
- goto set_default_dirlist;
- }
- | OPTION_Y NAME
- {
- if (strncmp ($2, "P,", 2))
- einfo ("%P%F: unknown -Y option -- %s\n", $2);
- else
- {
- char *p;
- dirlist_ptr = $2;
- set_default_dirlist:
- while (1)
- {
- p = strchr (dirlist_ptr, ':');
- if (p != NULL)
- *p = 0;
- if (*dirlist_ptr)
- ldfile_add_library_path (dirlist_ptr);
- if (p == NULL)
- break;
- *p = ':';
- dirlist_ptr = p + 1;
- }
- }
- }
- | '{' script_file '}' { /* This parses compiled-in scripts. */ }
- | NAME
- {
- if (*$1 == '-')
- einfo("%P%F: illegal option -- %s\n", $1);
- else
- lang_add_input_file($1,lang_input_file_is_file_enum,
- (char *)NULL);
+ ldlex_popstate();
+ lang_add_assignment(exp_assop($3,$2,$4));
}
- ;
-
/* SYNTAX WITHIN AN MRI SCRIPT FILE */
mri_script_file:
diff --git a/ld/ldlex.h b/ld/ldlex.h
index ed79934..34ab4a1 100644
--- a/ld/ldlex.h
+++ b/ld/ldlex.h
@@ -22,6 +22,16 @@
#include <stdio.h>
+/* The initial parser states. */
+typedef enum input_enum {
+ input_selected, /* We've set the initial state. */
+ input_script = INPUT_SCRIPT,
+ input_mri_script = INPUT_MRI_SCRIPT,
+ input_defsym = INPUT_DEFSYM
+} input_type;
+
+extern input_type parser_input;
+
extern int hex_mode;
extern unsigned int lineno;
@@ -40,8 +50,9 @@ extern void ldlex_popstate PARAMS ((void));
/* In lexsup.c. */
extern int lex_input PARAMS ((void));
extern void lex_unput PARAMS ((int));
+#ifndef yywrap
extern int yywrap PARAMS ((void));
+#endif
extern void parse_args PARAMS ((int, char **));
-extern void parse_line PARAMS ((char*, int));
#endif
diff --git a/ld/ldlex.l b/ld/ldlex.l
index ddc4d5e..dd15fbf 100644
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -43,30 +43,40 @@ This was written by steve chamberlain
#include "ldlex.h"
#include "ldmain.h"
-int ldgram_in_defsym;
+/* The type of top-level parser input.
+ yylex and yyparse (indirectly) both check this. */
+input_type parser_input;
+/* Radix to use for bfd_scan_vma -- 0 (default to base 10) or 16. */
int hex_mode;
+/* Line number in the current input file.
+ (FIXME Actually, it doesn't appear to get reset for each file?) */
unsigned int lineno = 1;
-int old;
+
+/* Support for flex reading from more than one input file (stream).
+ `include_stack' is flex's input state for each open file;
+ `file_name_stack' is the file names.
+
+ If `include_stack_ptr' is 0, we haven't started reading anything yet.
+ Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) yy_input(buf, &result, max_size)
-#undef YY_FATAL_ERROR
-#define YY_FATAL_ERROR(s)
+
#define MAX_INCLUDE_DEPTH 10
-YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
-char *file_name_stack[MAX_INCLUDE_DEPTH];
-unsigned int include_stack_ptr = 0;
+static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
+static char *file_name_stack[MAX_INCLUDE_DEPTH];
+static unsigned int include_stack_ptr = 0;
static YY_BUFFER_STATE yy_create_string_buffer PARAMS ((const char *string,
- int size));
+ size_t size));
static void yy_input PARAMS ((char *, int *result, int max_size));
+
static void comment PARAMS ((void));
static void lex_warn_invalid PARAMS ((char *where, char *what));
/* STATES
- COMMAND on command line
EXPRESSION definitely in an expression
SCRIPT definitely in a script
BOTH either EXPRESSION or SCRIPT
@@ -74,6 +84,11 @@ static void lex_warn_invalid PARAMS ((char *where, char *what));
MRI in an MRI script
*/
#define RTOKEN(x) { yylval.token = x; return x; }
+
+/* Some versions of flex want this. */
+#ifndef yywrap
+int yywrap () { return 1; }
+#endif
%}
%a 4000
@@ -90,7 +105,6 @@ WHITE [ \t\n]+
NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
-%s COMMAND
%s SCRIPT
%s EXPRESSION
%s BOTH
@@ -98,149 +112,21 @@ NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
%s MRI
%%
+ if (parser_input != input_selected)
+ {
+ /* The first token of the input determines the initial parser state. */
+ input_type t = parser_input;
+ parser_input = input_selected;
+ return t;
+ }
-<BOTH,SCRIPT,EXPRESSION,COMMAND>"/*" { comment(); }
+<BOTH,SCRIPT,EXPRESSION>"/*" { comment(); }
<DEFSYMEXP>"-" { RTOKEN('-');}
<DEFSYMEXP>"+" { RTOKEN('+');}
<DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = buystring(yytext); return NAME; }
-<DEFSYMEXP>[ \t] { RTOKEN(DEFSYMEND); }
<DEFSYMEXP>"=" { RTOKEN('='); }
-<COMMAND>"--help" { return OPTION_help; }
-<COMMAND>"--version" { return OPTION_version; }
-<COMMAND>"-defsym"{WHITE}* { return OPTION_defsym; }
-<COMMAND>"-format" { return OPTION_format; }
-<COMMAND>"-noinhibit-exec" { return OPTION_noinhibit_exec; }
-<COMMAND>"-noinhibit_exec" { return OPTION_noinhibit_exec; }
-<COMMAND>"-oformat" { return OPTION_oformat; }
-<COMMAND>"-sort-common" { return OPTION_sort_common;}
-<COMMAND>"-sort_common" { return OPTION_sort_common;}
-<COMMAND>"-warn-common" { return OPTION_warn_common;}
-<COMMAND>"-n" { return OPTION_n; }
-<COMMAND>"-N" { return OPTION_N; }
-<COMMAND>"-r" { return OPTION_r; }
-<COMMAND>"-stats" { return OPTION_stats; }
-<COMMAND>"-no-keep-memory" { return OPTION_no_keep_memory; }
-<COMMAND>"-relax" { return OPTION_relax; }
-<COMMAND>"-i" { return OPTION_r; }
-<COMMAND>"-Ur" { return OPTION_Ur; }
-<COMMAND>"-o" { return OPTION_o; }
-<COMMAND>"-g" { return OPTION_g; }
-<COMMAND>"-e" { return OPTION_e; }
-<COMMAND>"-e"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_esymbol;
- }
-<COMMAND>"-b" { return OPTION_b; }
-<COMMAND>"-dc" { return OPTION_dc; }
-<COMMAND>"-dp" { return OPTION_dp; }
-<COMMAND>"-d" { return OPTION_d; }
-<COMMAND>"-v" { return OPTION_v; }
-<COMMAND>"-V" { return OPTION_V; }
-<COMMAND>"-m" { return OPTION_m; }
-<COMMAND>"-m"{FILENAME} { return OPTION_memul; }
-<COMMAND>"-M" { return OPTION_M; }
-<COMMAND>"-Map" { return OPTION_Map;}
-<COMMAND>"-t" { return OPTION_t; }
-<COMMAND>"-X" { return OPTION_X; }
-<COMMAND>"-x" { return OPTION_x; }
-<COMMAND>"-c" { return OPTION_c; }
-<COMMAND>"-R" { return OPTION_R; }
-<COMMAND>"-u" { return OPTION_u; }
-<COMMAND>"-u"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_usymbol;
- }
-<COMMAND>"-s" { return OPTION_s; }
-<COMMAND>"-S" { return OPTION_S; }
-<COMMAND>"-Bstat" { return OPTION_Bstatic; }
-<COMMAND>"-B"{FILENAME} { /* Ignored */ }
-<COMMAND>"-l"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_l;
- }
-
-<COMMAND>"-L"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Lfile;
- }
-<COMMAND>"-L" { return OPTION_L; }
-<COMMAND>"-Ttext" {
- yylval.name = ".text";
- return OPTION_Texp;
- }
-<COMMAND>"-Tdata" {
- yylval.name = ".data";
- return OPTION_Texp;
- }
-<COMMAND>"-Tbss" {
- yylval.name = ".bss";
- return OPTION_Texp;
- }
-<COMMAND>"-O"([0-9])+ {
- yylval.integer = atoi (yytext + 2);
- return OPTION_Oval;
- }
-<COMMAND>"-O"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Texp;
- }
-
-<COMMAND>"-T"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Tfile;
- }
-<COMMAND>"-T" {
- return OPTION_T;
- }
-
-<COMMAND>"-F"{FILENAME} {
- return OPTION_F;
- }
-<COMMAND>"-F" {
- return OPTION_F;
- }
-
-<COMMAND>"-y" {
- return OPTION_y;
- }
-
-<COMMAND>"-y"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_ysymbol;
- }
-
-<COMMAND>"-A"{FILENAME} {
- yylval.name = buystring(yytext+2);
- return OPTION_Aarch;
- }
-
-<COMMAND>"-retain-symbols-file" { return OPTION_RETAIN_SYMBOLS_FILE; }
-
-<COMMAND>"-EB" {
- return OPTION_EB;
- }
-<COMMAND>"-EL" {
- return OPTION_EL;
- }
-<COMMAND>"-G" {
- return OPTION_G;
- }
-<COMMAND>"-G"([0-9])+ {
- yylval.integer = atoi (yytext + 2);
- return OPTION_Gval;
- }
-
-<COMMAND>"-Qy" { return OPTION_Qy; }
-<COMMAND>"-dn" { return OPTION_dn; }
-<COMMAND>"-Y" { return OPTION_Y; }
-<COMMAND>"-YP,"{FILENAME} {
- yylval.name = buystring (yytext+4);
- return OPTION_YP;
- }
-<COMMAND>"-non_shared" { return OPTION_non_shared; }
-<COMMAND>"-call_shared" { return OPTION_call_shared; }
<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
yylval.integer = bfd_scan_vma (yytext+1, 0,16);
@@ -311,18 +197,13 @@ NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
<BOTH,SCRIPT,EXPRESSION>"%" { RTOKEN('%');}
<BOTH,SCRIPT,EXPRESSION>"<" { RTOKEN('<');}
-<BOTH,SCRIPT,EXPRESSION>">" { RTOKEN('>');}
<MRI,BOTH,SCRIPT,EXPRESSION>"=" { RTOKEN('=');}
<BOTH,SCRIPT,EXPRESSION>"}" { RTOKEN('}') ; }
<BOTH,SCRIPT,EXPRESSION>"{" { RTOKEN('{'); }
<BOTH,SCRIPT,EXPRESSION>")" { RTOKEN(')');}
<BOTH,SCRIPT,EXPRESSION>"(" { RTOKEN('(');}
-<BOTH,SCRIPT,EXPRESSION>"]" { RTOKEN(']');}
-<BOTH,SCRIPT,EXPRESSION>"[" { RTOKEN('[');}
<BOTH,SCRIPT,EXPRESSION>":" { RTOKEN(':'); }
<BOTH,SCRIPT,EXPRESSION>";" { RTOKEN(';');}
-<BOTH,SCRIPT,EXPRESSION>"-" { RTOKEN('-');}
-<BOTH,SCRIPT,EXPRESSION>"/" { RTOKEN('/');}
<BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
<BOTH,SCRIPT>"ORIGIN" { RTOKEN(ORIGIN);}
<BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);}
@@ -395,12 +276,6 @@ NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
<MRI>"sect" { RTOKEN(SECT); }
<EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); }
-<COMMAND>{CMDFILENAMECHAR1}{CMDFILENAMECHAR}* {
- yylval.name = buystring(yytext);
- return NAME;
- }
-
-
<MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
/* Filename without commas, needed to parse mri stuff */
yylval.name = buystring(yytext);
@@ -412,11 +287,11 @@ NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
yylval.name = buystring(yytext);
return NAME;
}
-<SCRIPT,COMMAND>{FILENAMECHAR}* { yylval.name = buystring(yytext);
+<SCRIPT>{FILENAMECHAR}* { yylval.name = buystring(yytext);
return NAME;
}
-<EXPRESSION,BOTH,COMMAND,SCRIPT>"\""[^\"]*"\"" {
+<EXPRESSION,BOTH,SCRIPT>"\""[^\"]*"\"" {
/* No matter the state, quotes
give what's inside */
yylval.name = buystring(yytext+1);
@@ -424,7 +299,7 @@ NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
return NAME;
}
<BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;}
-<MRI,COMMAND,BOTH,SCRIPT,EXPRESSION>[ \t]
+<MRI,BOTH,SCRIPT,EXPRESSION>[ \t]
<<EOF>> {
include_stack_ptr--;
@@ -438,24 +313,20 @@ NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
yy_switch_to_buffer(include_stack[include_stack_ptr]);
}
- if (include_stack_ptr==1)
- {
- BEGIN(COMMAND);
- }
- else
- {
- BEGIN(SCRIPT);
- ldfile_input_filename = file_name_stack[include_stack_ptr-1];
- }
+ BEGIN(SCRIPT);
+ ldfile_input_filename = file_name_stack[include_stack_ptr-1];
return END;
}
-<COMMAND>. lex_warn_invalid(" on command line", yytext);
<SCRIPT,MRI>. lex_warn_invalid(" in script", yytext);
<EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid(" in expression", yytext);
%%
+
+
+/* Switch flex to reading script file NAME, open on FILE,
+ saving the current input info on the include stack. */
void
lex_push_file (file, name)
@@ -463,123 +334,109 @@ lex_push_file (file, name)
char *name;
{
if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
- {
- einfo("%F:includes nested too deeply\n");
- }
+ {
+ einfo("%F:includes nested too deeply\n");
+ }
file_name_stack[include_stack_ptr] = name;
include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
include_stack_ptr++;
yyin = file;
yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
-
- BEGIN(SCRIPT);
+ BEGIN (SCRIPT);
}
+/* Return a newly created flex input buffer containing STRING,
+ which is SIZE bytes long. */
+
static YY_BUFFER_STATE
-yy_create_string_buffer (string, size)
+yy_create_string_buffer (string, size)
CONST char *string;
- int size;
+ size_t size;
{
YY_BUFFER_STATE b;
- b = (YY_BUFFER_STATE) malloc( sizeof( struct yy_buffer_state ) );
+ /* Calls to m-alloc get turned by sed into xm-alloc. */
+ b = (YY_BUFFER_STATE) malloc (sizeof (struct yy_buffer_state));
b->yy_input_file = 0;
-
- if ( ! b )
- YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
-
b->yy_buf_size = size;
/* yy_ch_buf has to be 2 characters longer than the size given because
- * we need to put in 2 end-of-buffer characters.
- */
- b->yy_ch_buf = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 3) );
-
- if ( ! b->yy_ch_buf )
- YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
-
+ we need to put in 2 end-of-buffer characters. */
+ b->yy_ch_buf = (YY_CHAR *) malloc ((unsigned) (b->yy_buf_size + 3));
b->yy_ch_buf[0] = '\n';
- strcpy(b->yy_ch_buf+1, string);
+ strcpy (b->yy_ch_buf+1, string);
b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR;
b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR;
- b->yy_n_chars = size+1;
+ b->yy_n_chars = size+1;
b->yy_buf_pos = &b->yy_ch_buf[1];
-
b->yy_eof_status = EOF_NOT_SEEN;
- return ( b );
+ return b;
}
-
+/* Switch flex to reading from STRING, saving the current input info
+ on the include stack. */
void
lex_redirect (string)
- CONST char *string;
+ CONST char *string;
{
YY_BUFFER_STATE tmp;
- int len = strlen(string);
- yy_init = 0 ;
+ yy_init = 0;
if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
- {
- einfo("%F: macros nested too deeply\n");
- }
+ {
+ einfo("%F: macros nested too deeply\n");
+ }
file_name_stack[include_stack_ptr] = "redirect";
include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
include_stack_ptr++;
- tmp = yy_create_string_buffer(string, len);
-
- yy_switch_to_buffer(tmp);
- BEGIN(COMMAND);
- yyout = stdout;
+ tmp = yy_create_string_buffer (string, strlen (string));
+ yy_switch_to_buffer (tmp);
+ BEGIN (SCRIPT);
}
+
+/* Functions to switch to a different flex start condition,
+ saving the current start condition on `state_stack'. */
-int state_stack[20];
-int *state_stack_p = state_stack;
+static int state_stack[MAX_INCLUDE_DEPTH * 2];
+static int *state_stack_p = state_stack;
void
ldlex_script ()
{
*(state_stack_p)++ = yy_start;
-
- BEGIN(SCRIPT);
+ BEGIN (SCRIPT);
}
-
void
ldlex_mri_script ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(MRI);
+ BEGIN (MRI);
}
void
ldlex_defsym ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(DEFSYMEXP);
+ BEGIN (DEFSYMEXP);
}
void
ldlex_expression ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(EXPRESSION);
-
+ BEGIN (EXPRESSION);
}
+
void
ldlex_both ()
{
*(state_stack_p)++ = yy_start;
- BEGIN(BOTH);
-}
-void
-ldlex_command ()
-{
- *(state_stack_p)++ = yy_start;
- BEGIN(COMMAND);
+ BEGIN (BOTH);
}
void
@@ -587,53 +444,69 @@ ldlex_popstate ()
{
yy_start = *(--state_stack_p);
}
+
+
+/* Place up to MAX_SIZE characters in BUF and return in *RESULT
+ either the number of characters read, or 0 to indicate EOF. */
static void
-yy_input(buf, result, max_size)
-char *buf;
-int *result;
-int max_size;
+yy_input (buf, result, max_size)
+ char *buf;
+ int *result;
+ int max_size;
{
*result = 0;
if (yy_current_buffer->yy_input_file)
- {
- if (yyin)
- if ( (*result = read( fileno(yyin), (char *) buf, max_size )) < 0 )
- YY_FATAL_ERROR( "read() in flex scanner failed" );
- }
+ {
+ if (yyin)
+ {
+ *result = read (fileno (yyin), (char *) buf, max_size);
+ if (*result < 0)
+ einfo ("%F%P: read in flex scanner failed");
+ }
+ }
}
+/* Eat the rest of a C-style comment. */
+
static void
comment ()
{
int c;
+
while (1)
{
c = input();
- while (c !='*' && c != EOF)
+ while (c != '*' && c != EOF)
{
- if (c == '\n') lineno++;
+ if (c == '\n')
+ lineno++;
c = input();
}
-
if (c == '*')
{
c = input();
- while ( c == '*')
+ while (c == '*')
c = input();
- if ( c == '/' )
+ if (c == '/')
break; /* found the end */
}
- if ( c == EOF )
+ if (c == '\n')
+ lineno++;
+
+ if (c == EOF)
{
- einfo( "%F%P :EOF in comment\n");
+ einfo( "%F%P: EOF in comment\n");
break;
}
}
}
+/* Warn the user about a garbage character WHAT in the input
+ in context WHERE. */
+
static void
lex_warn_invalid (where, what)
char *where, *what;
diff --git a/ld/ldmain.c b/ld/ldmain.c
index 23e2d37..7dfa75b 100644
--- a/ld/ldmain.c
+++ b/ld/ldmain.c
@@ -22,6 +22,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include <stdio.h>
+#include "libiberty.h"
#include "bfdlink.h"
#include "config.h"
@@ -205,16 +206,11 @@ main (argc, argv)
char *s = ldemul_get_script (&isfile);
if (isfile)
- {
- /* sizeof counts the terminating NUL. */
- size_t size = strlen (s) + sizeof ("-T ");
- char *buf = (char *) xmalloc(size);
- sprintf (buf, "-T %s", s);
- parse_line (buf, 0);
- free (buf);
- }
+ ldfile_open_command_file (s);
else
- parse_line (s, 1);
+ lex_redirect (s);
+ parser_input = input_script;
+ yyparse ();
}
if (link_info.relocateable && command_line.relax)
diff --git a/ld/lexsup.c b/ld/lexsup.c
new file mode 100644
index 0000000..c3f73e0
--- /dev/null
+++ b/ld/lexsup.c
@@ -0,0 +1,322 @@
+/* Parse options for the GNU linker.
+ Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
+
+This file is part of GLD, the Gnu Linker.
+
+GLD is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GLD is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GLD; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include <stdio.h>
+#include <string.h>
+#include "getopt.h"
+#include "bfdlink.h"
+#include "config.h"
+#include "ld.h"
+#include "ldmain.h"
+#include "ldmisc.h"
+#include "ldexp.h"
+#include "ldlang.h"
+#include "ldgram.h"
+#include "ldlex.h"
+#include "ldfile.h"
+
+/* Omit args to avoid the possibility of clashing with a system header
+ that might disagree about consts. */
+unsigned long strtoul ();
+
+static void set_default_dirlist PARAMS ((char *dirlist_ptr));
+static void set_section_start PARAMS ((char *sect, char *valstr));
+
+void
+parse_args (argc, argv)
+ int argc;
+ char **argv;
+{
+ /* Starting the short option string with '-' is for programs that
+ expect options and other ARGV-elements in any order and that care about
+ the ordering of the two. We describe each non-option ARGV-element
+ as if it were the argument of an option with character code 1. */
+
+ const char *shortopts = "-A:B::b:cde:F::G:giL:l:Mm:NnO:o:R:rSsT:tu:VvXxy:";
+
+ static struct option longopts[] =
+ {
+ {"call_shared", no_argument, NULL, 158},
+ {"dc", no_argument, NULL, 'd'},
+ {"defsym", required_argument, NULL, 160},
+ {"dn", no_argument, NULL, 158},
+ {"dp", no_argument, NULL, 'd'},
+ {"EB", no_argument, NULL, 150},
+ {"EL", no_argument, NULL, 151},
+ {"format", required_argument, NULL, 'b'},
+ {"help", no_argument, NULL, 164},
+ {"Map", required_argument, NULL, 152},
+ {"no-keep-memory", no_argument, NULL, 168},
+ {"noinhibit-exec", no_argument, NULL, 169},
+ {"noinhibit_exec", no_argument, NULL, 169},
+ {"non_shared", no_argument, NULL, 158},
+ {"oformat", required_argument, NULL, 172},
+ {"Qy", no_argument, NULL, 158},
+ {"relax", no_argument, NULL, 173},
+ {"retain-symbols-file", no_argument, NULL, 174},
+ {"sort-common", no_argument, NULL, 175},
+ {"sort_common", no_argument, NULL, 175},
+ {"stats", no_argument, NULL, 176},
+ {"Tbss", required_argument, NULL, 154},
+ {"Tdata", required_argument, NULL, 155},
+ {"Ttext", required_argument, NULL, 156},
+ {"Ur", no_argument, NULL, 157},
+ {"version", no_argument, NULL, 178},
+ {"warn-common", no_argument, NULL, 177},
+ {"YP,", required_argument, NULL, 158},
+ {NULL, no_argument, NULL, 0}
+ };
+
+ while (1)
+ {
+ /* getopt_long_only is like getopt_long, but '-' as well as '--' can
+ indicate a long option. */
+ int optc = getopt_long_only (argc, argv, shortopts, longopts,
+ (int *) NULL);
+ if (optc == -1)
+ break;
+
+ switch (optc)
+ {
+ default:
+ xexit (1);
+ case 1: /* File name. */
+ lang_add_input_file (optarg, lang_input_file_is_file_enum,
+ (char *) NULL);
+ break;
+
+ case 'A':
+ ldfile_add_arch (optarg);
+ break;
+ case 'B':
+ /* Ignore. */
+ break;
+ case 'b':
+ lang_add_target (optarg);
+ break;
+ case 'c':
+ ldfile_open_command_file (optarg);
+ parser_input = input_mri_script;
+ yyparse ();
+ break;
+ case 158: /* call_shared, dn, non_shared, Qy, YP */
+ set_default_dirlist (optarg);
+ break;
+ case 'd':
+ command_line.force_common_definition = true;
+ break;
+ case 160: /* defsym */
+ lex_redirect (optarg);
+ parser_input = input_defsym;
+ yyparse ();
+ break;
+ case 150: /* EB */
+ /* FIXME: This is currently ignored. It means
+ ``produce a big-endian object file''. It could
+ be used to select an output format. */
+ break;
+ case 151: /* EL */
+ /* FIXME: This is currently ignored. It means
+ ``produce a little-endian object file''. It could
+ be used to select an output format. */
+ break;
+ case 'e':
+ lang_add_entry (optarg);
+ break;
+ case 'F':
+ /* Ignore. */
+ break;
+ case 'G':
+ {
+ char *end;
+ g_switch_value = strtoul (optarg, &end, 0);
+ if (*end)
+ einfo ("%P%F: invalid number `%s'", optarg);
+ }
+ break;
+ case 'g':
+ /* Ignore. */
+ break;
+ case 164: /* help */
+ help ();
+ xexit (0);
+ break;
+ case 'L':
+ ldfile_add_library_path (optarg);
+ break;
+ case 'l':
+ lang_add_input_file (optarg, lang_input_file_is_l_enum,
+ (char *) NULL);
+ break;
+ case 'M':
+ config.map_filename = "-";
+ break;
+ case 'm':
+ /* Ignore. Was handled in a pre-parse. */
+ break;
+ case 152: /* Map */
+ write_map = true;
+ config.map_filename = optarg;
+ break;
+ case 'N':
+ config.text_read_only = false;
+ config.magic_demand_paged = false;
+ break;
+ case 'n':
+ config.magic_demand_paged = false;
+ break;
+ case 168: /* no-keep-memory */
+ link_info.keep_memory = false;
+ break;
+ case 169: /* noinhibit-exec */
+ force_make_executable = true;
+ break;
+ case 'O':
+ /* FIXME "-O<non-digits> <value>" used to set the address of
+ section <non-digits>. Was this for compatibility with
+ something, or can we create a new option to do that
+ (with a syntax similar to -defsym)?
+ getopt can't handle two args to an option without kludges. */
+ set_default_dirlist (optarg);
+ break;
+ case 'o':
+ lang_add_output (optarg, 0);
+ break;
+ case 172: /* oformat */
+ lang_add_output_format (optarg, 0);
+ break;
+ case 'r':
+ link_info.relocateable = true;
+ config.build_constructors = false;
+ config.magic_demand_paged = false;
+ config.text_read_only = false;
+ break;
+ case 'R':
+ lang_add_input_file (optarg,
+ lang_input_file_is_symbols_only_enum,
+ (char *) NULL);
+ break;
+ case 173: /* relax */
+ command_line.relax = true;
+ break;
+ case 174: /* retain-symbols-file */
+ add_keepsyms_file (optarg);
+ break;
+ case 'S':
+ link_info.strip = strip_debugger;
+ break;
+ case 's':
+ link_info.strip = strip_all;
+ break;
+ case 175: /* sort-common */
+ config.sort_common = true;
+ break;
+ case 176: /* stats */
+ config.stats = true;
+ break;
+ case 't':
+ trace_files = true;
+ break;
+ case 'T':
+ ldfile_open_command_file (optarg);
+ parser_input = input_script;
+ yyparse ();
+ break;
+ case 154: /* Tbss */
+ set_section_start (".bss", optarg);
+ break;
+ case 155: /* Tdata */
+ set_section_start (".data", optarg);
+ break;
+ case 156: /* Ttext */
+ set_section_start (".text", optarg);
+ break;
+ case 157: /* Ur */
+ link_info.relocateable = true;
+ config.build_constructors = true;
+ config.magic_demand_paged = false;
+ config.text_read_only = false;
+ break;
+ case 'u':
+ ldlang_add_undef (optarg);
+ break;
+ case 'V':
+ ldversion (1);
+ version_printed = true;
+ trace_file_tries = true;
+ break;
+ case 'v':
+ ldversion (0);
+ version_printed = true;
+ break;
+ case 178: /* version */
+ ldversion (0);
+ version_printed = true;
+ break;
+ case 177: /* warn-common */
+ config.warn_common = true;
+ break;
+ case 'X':
+ link_info.discard = discard_l;
+ break;
+ case 'x':
+ link_info.discard = discard_all;
+ break;
+ case 'y':
+ add_ysym (optarg);
+ break;
+ }
+ }
+}
+
+/* Add the (colon-separated) elements of DIRLIST_PTR to the
+ library search path. */
+
+static void
+set_default_dirlist (dirlist_ptr)
+ char *dirlist_ptr;
+{
+ char *p;
+
+ while (1)
+ {
+ p = strchr (dirlist_ptr, ':');
+ if (p != NULL)
+ *p = 0;
+ if (*dirlist_ptr)
+ ldfile_add_library_path (dirlist_ptr);
+ if (p == NULL)
+ break;
+ *p = ':';
+ dirlist_ptr = p + 1;
+ }
+}
+
+static void
+set_section_start (sect, valstr)
+ char *sect, *valstr;
+{
+ char *end;
+ unsigned long val = strtoul (valstr, &end, 16);
+ if (*end)
+ einfo ("%P%F: invalid hex number `%s'", valstr);
+ lang_section_start (sect, exp_intop (val));
+}
generated by cgit v1.1 at 2024-12-19 01:56:55 +0000