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authorH. Peter Anvin <hpa@zytor.com>2002-04-30 21:08:42 +0000
committerH. Peter Anvin <hpa@zytor.com>2002-04-30 21:08:42 +0000
commit005b39c856917f060973f8d07c98d111b67d0a7f (patch)
tree47f03e86ef15c8deebf35096f358adca27892850 /rdoff
parent9a633fa3b9b5c772daf4cbca89093bfcd387359b (diff)
downloadnasm-005b39c856917f060973f8d07c98d111b67d0a7f.tar.gz
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nasm-005b39c856917f060973f8d07c98d111b67d0a7f.zip
NASM 0.98.26
Diffstat (limited to 'rdoff')
-rw-r--r--rdoff/Changes63
-rw-r--r--rdoff/Mkfiles/Makefile.dj75
-rw-r--r--rdoff/Mkfiles/Makefile.emx76
-rw-r--r--rdoff/Mkfiles/Makefile.sc56
-rw-r--r--rdoff/Mkfiles/Makefile.unx75
-rw-r--r--rdoff/Mkfiles/README4
-rw-r--r--rdoff/ldrdf1.c728
-rw-r--r--rdoff/test/makelib14
-rw-r--r--rdoff/v1/README5
-rw-r--r--rdoff/v1/collectn.c40
-rw-r--r--rdoff/v1/collectn.h22
-rw-r--r--rdoff/v1/ldrdf.c728
-rw-r--r--rdoff/v1/rdf.doc99
-rw-r--r--rdoff/v1/rdf2bin.c125
-rw-r--r--rdoff/v1/rdfdump.c167
-rw-r--r--rdoff/v1/rdflib.c235
-rw-r--r--rdoff/v1/rdfload.c173
-rw-r--r--rdoff/v1/rdfload.h29
-rw-r--r--rdoff/v1/rdlib.c88
-rw-r--r--rdoff/v1/rdlib.h18
-rw-r--r--rdoff/v1/rdoff.c397
-rw-r--r--rdoff/v1/rdoff.h118
-rw-r--r--rdoff/v1/rdoff.txt114
-rw-r--r--rdoff/v1/rdx.c61
-rw-r--r--rdoff/v1/symtab.c80
-rw-r--r--rdoff/v1/symtab.h22
26 files changed, 286 insertions, 3326 deletions
diff --git a/rdoff/Changes b/rdoff/Changes
deleted file mode 100644
index 34163a9..0000000
--- a/rdoff/Changes
+++ /dev/null
@@ -1,63 +0,0 @@
-Differences between RDOFF versions 1 & 2
-========================================
-
-This document is designed primarily for people maintaining code which
-uses RDOFF version 1, and would like to upgrade that code to work
-with version 2.
-
-The main changes are summarised here:
-
-Overall format
-==============
-
-The overall format has changed somewhat since version 1, in order
-to make RDOFF more flexible. After the file type identifier (which
-has been changed to 'RDOFF2', obviously), there is now a 4 byte
-integer describing the length of the object module. This allows
-multiple objects to be concatenated, while the loader can easily
-build an index of the locations of each object. This isn't as
-pointless as it sounds; I'm using RDOFF in a microkernel operating
-system, and this is the ideal way of loading multiple driver modules
-at boot time.
-
-There are also no longer a fixed number of segments; instead there
-is a list of segments, immediately following the header.
-Each segment is preceded by a 10 byte header giving information about
-that segment. This header has the following format:
-
-Length Description
-2 Type
-2 Number
-2 Reserved
-4 Length
-
-'Type' is a number describing what sort of segment it is (eg text, data,
-comment, debug info). See 'rdoff2.txt' for a list of the segment types.
-'Number' is the number used to refer to the segment in the header records.
-Not all segments will be loaded; it is only intended that one code
-and one data segment will be loaded into memory. It is possible, however,
-for a loaded segment to contain a reference to an unloaded segment.
-This is an error, and should be flagged at load time. Or maybe you should
-load the segment... its up to you, really.
-
-The segment's data immediately follows the end of the segment header.
-
-HEADER RECORDS
-==============
-
-All of the header records have changed in this version, but not
-substantially. Each record type has had a content-length code added,
-a single byte immediately following the type byte. This contains the
-length of the rest of the record (excluding the type and length bytes,
-but including the terminating nulls on any strings in the record).
-
-There are two new record types, Segment Relocation (6), and FAR import (7).
-The record formats are identical to Relocation (1) and import (2). They are
-only of real use on systems using segmented architectures. Systems using
-a flat model should treat FAR import (7) exactly the same as an import (2),
-and should either flag segment relocation as an error, or attempt to figure
-out whether it is a reference to a code or data symbol, and set the value
-referenced to the according selector value. I am opting for the former
-approach, and would recommend that others working on 32 bit flat systems
-do the same.
-
diff --git a/rdoff/Mkfiles/Makefile.dj b/rdoff/Mkfiles/Makefile.dj
new file mode 100644
index 0000000..2099739
--- /dev/null
+++ b/rdoff/Mkfiles/Makefile.dj
@@ -0,0 +1,75 @@
+# Generated automatically from Makefile.in by configure.
+#
+# Auto-configuring Makefile for RDOFF object file utils; part of the
+# Netwide Assembler
+#
+# The Netwide Assembler is copyright (C) 1996 Simon Tatham and
+# Julian Hall. All rights reserved. The software is
+# redistributable under the licence given in the file "Licence"
+# distributed in the NASM archive.
+
+# You may need to adjust these values.
+
+prefix = /djgpp
+CC = gcc -s
+CFLAGS = -O2 -I..
+
+# You _shouldn't_ need to adjust anything below this line.
+
+exec_prefix = ${prefix}
+bindir = ${exec_prefix}/bin
+mandir = ${prefix}/man
+
+INSTALL = /usr/bin/install -c
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_DATA = ${INSTALL} -m 644
+LN_S = ln -s
+
+LDRDFLIBS = rdoff.o ../nasmlib.o symtab.o hash.o collectn.o rdlib.o segtab.o
+RDXLIBS = rdoff.o rdfload.o symtab.o hash.o collectn.o
+
+.c.o:
+ $(CC) -c $(CFLAGS) $*.c
+
+all: rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+
+rdfdump: rdfdump.o
+ $(CC) -o rdfdump rdfdump.o
+
+ldrdf: ldrdf.o $(LDRDFLIBS)
+ $(CC) -o ldrdf ldrdf.o $(LDRDFLIBS)
+rdx: rdx.o $(RDXLIBS)
+ $(CC) -o rdx rdx.o $(RDXLIBS)
+rdflib: rdflib.o
+ $(CC) -o rdflib rdflib.o
+rdf2bin: rdf2bin.o $(RDXLIBS) nasmlib.o
+ $(CC) -o rdf2bin rdf2bin.o $(RDXLIBS) nasmlib.o
+rdf2com:
+ $(LN_S) rdf2bin rdf2com
+
+rdf2bin.o: rdf2bin.c
+rdfdump.o: rdfdump.c
+rdoff.o: rdoff.c rdoff.h
+ldrdf.o: ldrdf.c rdoff.h ../nasmlib.h symtab.h collectn.h rdlib.h
+symtab.o: symtab.c symtab.h hash.h
+collectn.o: collectn.c collectn.h
+rdx.o: rdx.c rdoff.h rdfload.h symtab.h
+rdfload.o: rdfload.c rdfload.h rdoff.h collectn.h symtab.h
+rdlib.o: rdlib.c rdlib.h
+rdflib.o: rdflib.c
+hash.o: hash.c hash.h
+segtab.o: segtab.c segtab.h
+
+nasmlib.o: ../nasmlib.c ../nasmlib.h ../names.c ../nasm.h
+ $(CC) -c $(CFLAGS) ../nasmlib.c
+
+clean:
+ rm -f *.o rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+
+install: rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+ $(INSTALL_PROGRAM) rdfdump $(bindir)/rdfdump
+ $(INSTALL_PROGRAM) ldrdf $(bindir)/ldrdf
+ $(INSTALL_PROGRAM) rdx $(bindir)/rdx
+ $(INSTALL_PROGRAM) rdflib $(bindir)/rdflib
+ $(INSTALL_PROGRAM) rdf2bin $(bindir)/rdf2bin
+ cd $(bindir); $(LN_S) rdf2bin rdf2com
diff --git a/rdoff/Mkfiles/Makefile.emx b/rdoff/Mkfiles/Makefile.emx
new file mode 100644
index 0000000..fbaa934
--- /dev/null
+++ b/rdoff/Mkfiles/Makefile.emx
@@ -0,0 +1,76 @@
+# Generated automatically from Makefile.in by configure.
+# $Id$
+#
+# Auto-configuring Makefile for RDOFF object file utils; part of the
+# Netwide Assembler
+#
+# The Netwide Assembler is copyright (C) 1996 Simon Tatham and
+# Julian Hall. All rights reserved. The software is
+# redistributable under the licence given in the file "Licence"
+# distributed in the NASM archive.
+
+top_srcdir = ..
+srcdir = .
+prefix = /usr/local
+exec_prefix = ${prefix}
+bindir = ${exec_prefix}/bin
+mandir = ${prefix}/man
+
+CC = gcc
+CFLAGS = -s -Zomf -O2 -fomit-frame-pointer -Wall -ansi -pedantic -I$(srcdir) -I$(top_srcdir)
+LDFLAGS = -s -Zomf -Zexe -Zcrtdll
+LIBS = -lgcc
+
+INSTALL = .././install-sh -c
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_DATA = ${INSTALL} -m 644
+
+LDRDFLIBS = rdoff.o nasmlib.o symtab.o collectn.o rdlib.o segtab.o hash.o
+RDXLIBS = rdoff.o rdfload.o symtab.o collectn.o hash.o
+
+.c.o:
+ $(CC) -c $(CFLAGS) -o $@ $<
+
+all: rdfdump ldrdf rdx rdflib rdf2bin
+
+rdfdump: rdfdump.o
+ $(CC) $(LDFLAGS) -o rdfdump rdfdump.o $(LIBS)
+ldrdf: ldrdf.o $(LDRDFLIBS)
+ $(CC) $(LDFLAGS) -o ldrdf ldrdf.o $(LDRDFLIBS) $(LIBS)
+rdx: rdx.o $(RDXLIBS)
+ $(CC) $(LDFLAGS) -o rdx rdx.o $(RDXLIBS) $(LIBS)
+rdflib: rdflib.o
+ $(CC) $(LDFLAGS) -o rdflib rdflib.o $(LIBS)
+rdf2bin: rdf2bin.o $(RDXLIBS) nasmlib.o
+ $(CC) $(LDFLAGS) -o rdf2bin rdf2bin.o $(RDXLIBS) nasmlib.o $(LIBS)
+
+rdf2bin.o: rdf2bin.c
+rdfdump.o: rdfdump.c
+rdoff.o: rdoff.c rdoff.h
+ldrdf.o: ldrdf.c rdoff.h $(top_srcdir)/nasmlib.h symtab.h collectn.h rdlib.h
+symtab.o: symtab.c symtab.h
+collectn.o: collectn.c collectn.h
+rdx.o: rdx.c rdoff.h rdfload.h symtab.h
+rdfload.o: rdfload.c rdfload.h rdoff.h collectn.h symtab.h
+rdlib.o: rdlib.c rdlib.h
+rdflib.o: rdflib.c
+segtab.o: segtab.c
+
+nasmlib.o: $(top_srcdir)/nasmlib.c
+ $(CC) -c $(CFLAGS) -o $@ $(top_srcdir)/nasmlib.c
+
+clean:
+ rm -f *.o rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+
+spotless: clean
+ rm -f Makefile
+
+distclean: spotless
+
+install: rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+ $(INSTALL_PROGRAM) rdfdump $(INSTALLROOT)$(bindir)/rdfdump
+ $(INSTALL_PROGRAM) ldrdf $(INSTALLROOT)$(bindir)/ldrdf
+ $(INSTALL_PROGRAM) rdx $(INSTALLROOT)$(bindir)/rdx
+ $(INSTALL_PROGRAM) rdflib $(INSTALLROOT)$(bindir)/rdflib
+ $(INSTALL_PROGRAM) rdf2bin $(INSTALLROOT)$(bindir)/rdf2bin
+ cd $(INSTALLROOT)$(bindir) && rm -f rdf2com && $(LN_S) rdf2bin rdf2com
diff --git a/rdoff/Mkfiles/Makefile.sc b/rdoff/Mkfiles/Makefile.sc
new file mode 100644
index 0000000..7b45fe7
--- /dev/null
+++ b/rdoff/Mkfiles/Makefile.sc
@@ -0,0 +1,56 @@
+# Makefile for RDOFF object file utils; part of the Netwide Assembler
+#
+# The Netwide Assembler is copyright (C) 1996 Simon Tatham and
+# Julian Hall. All rights reserved. The software is
+# redistributable under the licence given in the file "Licence"
+# distributed in the NASM archive.
+#
+# This Makefile is designed for use under Unix (probably fairly
+# portably).
+
+CC = sc
+CCFLAGS = -I..\ -c -a1 -mn -Nc -w2 -w7 -o+time -5
+LINK = link
+LINKFLAGS = /noi /exet:NT /su:console
+
+OBJ=obj
+EXE=.exe
+
+NASMLIB = ..\nasmlib.$(OBJ)
+NASMLIB_H = ..\nasmlib.h
+LDRDFLIBS = rdoff.$(OBJ) $(NASMLIB) symtab.$(OBJ) collectn.$(OBJ) rdlib.$(OBJ)
+RDXLIBS = rdoff.$(OBJ) rdfload.$(OBJ) symtab.$(OBJ) collectn.$(OBJ)
+
+.c.$(OBJ):
+ $(CC) $(CCFLAGS) $*.c
+
+all : rdfdump$(EXE) ldrdf$(EXE) rdx$(EXE) rdflib$(EXE) rdf2bin$(EXE) rdf2com$(EXE)
+
+rdfdump$(EXE) : rdfdump.$(OBJ)
+ $(LINK) $(LINKFLAGS) rdfdump.$(OBJ), rdfdump$(EXE);
+ldrdf$(EXE) : ldrdf.$(OBJ) $(LDRDFLIBS)
+ $(LINK) $(LINKFLAGS) ldrdf.$(OBJ) $(LDRDFLIBS), ldrdf$(EXE);
+rdx$(EXE) : rdx.$(OBJ) $(RDXLIBS)
+ $(LINK) $(LINKFLAGS) rdx.$(OBJ) $(RDXLIBS), rdx$(EXE);
+rdflib$(EXE) : rdflib.$(OBJ)
+ $(LINK) $(LINKFLAGS) rdflib.$(OBJ), rdflib$(EXE);
+rdf2bin$(EXE) : rdf2bin.$(OBJ) $(RDXLIBS) $(NASMLIB)
+ $(LINK) $(LINKFLAGS) rdf2bin.$(OBJ) $(RDXLIBS) $(NASMLIB), rdf2bin$(EXE);
+rdf2com$(EXE) : rdf2bin$(EXE)
+ copy rdf2bin$(EXE) rdf2com$(EXE)
+
+rdf2bin.$(OBJ) : rdf2bin.c
+rdfdump.$(OBJ) : rdfdump.c
+rdoff.$(OBJ) : rdoff.c rdoff.h
+ldrdf.$(OBJ) : ldrdf.c rdoff.h $(NASMLIB_H) symtab.h collectn.h rdlib.h
+symtab.$(OBJ) : symtab.c symtab.h
+collectn.$(OBJ) : collectn.c collectn.h
+rdx.$(OBJ) : rdx.c rdoff.h rdfload.h symtab.h
+rdfload.$(OBJ) : rdfload.c rdfload.h rdoff.h collectn.h symtab.h
+rdlib.$(OBJ) : rdlib.c rdlib.h
+rdflib.$(OBJ) : rdflib.c
+
+clean :
+ del *.$(OBJ) rdfdump$(EXE) ldrdf$(EXE) rdx$(EXE) rdflib$(EXE) rdf2bin$(EXE)
+
+
diff --git a/rdoff/Mkfiles/Makefile.unx b/rdoff/Mkfiles/Makefile.unx
new file mode 100644
index 0000000..89d439f
--- /dev/null
+++ b/rdoff/Mkfiles/Makefile.unx
@@ -0,0 +1,75 @@
+# Generated automatically from Makefile.in by configure.
+#
+# Auto-configuring Makefile for RDOFF object file utils; part of the
+# Netwide Assembler
+#
+# The Netwide Assembler is copyright (C) 1996 Simon Tatham and
+# Julian Hall. All rights reserved. The software is
+# redistributable under the licence given in the file "Licence"
+# distributed in the NASM archive.
+
+# You may need to adjust these values.
+
+prefix = /usr/local
+CC = cc
+CFLAGS = -O -I..
+
+# You _shouldn't_ need to adjust anything below this line.
+
+exec_prefix = ${prefix}
+bindir = ${exec_prefix}/bin
+mandir = ${prefix}/man
+
+INSTALL = /usr/bin/install -c
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_DATA = ${INSTALL} -m 644
+LN_S = ln -s
+
+LDRDFLIBS = rdoff.o ../nasmlib.o symtab.o hash.o collectn.o rdlib.o segtab.o
+RDXLIBS = rdoff.o rdfload.o symtab.o hash.o collectn.o
+
+.c.o:
+ $(CC) -c $(CFLAGS) $*.c
+
+all: rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+
+rdfdump: rdfdump.o
+ $(CC) -o rdfdump rdfdump.o
+
+ldrdf: ldrdf.o $(LDRDFLIBS)
+ $(CC) -o ldrdf ldrdf.o $(LDRDFLIBS)
+rdx: rdx.o $(RDXLIBS)
+ $(CC) -o rdx rdx.o $(RDXLIBS)
+rdflib: rdflib.o
+ $(CC) -o rdflib rdflib.o
+rdf2bin: rdf2bin.o $(RDXLIBS) nasmlib.o
+ $(CC) -o rdf2bin rdf2bin.o $(RDXLIBS) nasmlib.o
+rdf2com:
+ $(LN_S) rdf2bin rdf2com
+
+rdf2bin.o: rdf2bin.c
+rdfdump.o: rdfdump.c
+rdoff.o: rdoff.c rdoff.h
+ldrdf.o: ldrdf.c rdoff.h ../nasmlib.h symtab.h collectn.h rdlib.h
+symtab.o: symtab.c symtab.h hash.h
+collectn.o: collectn.c collectn.h
+rdx.o: rdx.c rdoff.h rdfload.h symtab.h
+rdfload.o: rdfload.c rdfload.h rdoff.h collectn.h symtab.h
+rdlib.o: rdlib.c rdlib.h
+rdflib.o: rdflib.c
+hash.o: hash.c hash.h
+segtab.o: segtab.c segtab.h
+
+nasmlib.o: ../nasmlib.c ../nasmlib.h ../names.c ../nasm.h
+ $(CC) -c $(CFLAGS) ../nasmlib.c
+
+clean:
+ rm -f *.o rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+
+install: rdfdump ldrdf rdx rdflib rdf2bin rdf2com
+ $(INSTALL_PROGRAM) rdfdump $(bindir)/rdfdump
+ $(INSTALL_PROGRAM) ldrdf $(bindir)/ldrdf
+ $(INSTALL_PROGRAM) rdx $(bindir)/rdx
+ $(INSTALL_PROGRAM) rdflib $(bindir)/rdflib
+ $(INSTALL_PROGRAM) rdf2bin $(bindir)/rdf2bin
+ cd $(bindir); $(LN_S) rdf2bin rdf2com
diff --git a/rdoff/Mkfiles/README b/rdoff/Mkfiles/README
new file mode 100644
index 0000000..7e68499
--- /dev/null
+++ b/rdoff/Mkfiles/README
@@ -0,0 +1,4 @@
+These are pre-created Makefiles for various platforms, use them if
+GNU autoconf/automake packages are not supported on your system.
+
+Copy appropriate Makefile to ../Makefile and run make.
diff --git a/rdoff/ldrdf1.c b/rdoff/ldrdf1.c
deleted file mode 100644
index 9e4a215..0000000
--- a/rdoff/ldrdf1.c
+++ /dev/null
@@ -1,728 +0,0 @@
-/* ldrdf.c RDOFF Object File linker/loader main program
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-
-/* TODO: Make the system skip a module (other than the first) if none
- * of the other specified modules contain a reference to it.
- * May require the system to make an extra pass of the modules to be
- * loaded eliminating those that aren't required.
- *
- * Support all the existing documented options...
- *
- * Support libaries (.a files - requires a 'ranlib' type utility)
- * (I think I've got this working, so I've upped the version)
- *
- * -s option to strip resolved symbols from exports. (Could make this an
- * external utility)
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "rdoff.h"
-#include "nasmlib.h"
-#include "symtab.h"
-#include "collectn.h"
-#include "rdlib.h"
-
-#define LDRDF_VERSION "0.30"
-
-/* global variables - those to set options: */
-
-int verbose = 0; /* reflects setting of command line switch */
-int align = 16;
-int errors = 0; /* set by functions to cause halt after current
- stage of processing */
-
-/* the linked list of modules that must be loaded & linked */
-
-struct modulenode {
- rdffile f; /* the file */
- long coderel; /* module's code relocation factor */
- long datarel; /* module's data relocation factor */
- long bssrel; /* module's bss data reloc. factor */
- void * header; /* header location, if loaded */
- char * name; /* filename */
- struct modulenode *next;
-};
-
-#define newstr(str) strcpy(malloc(strlen(str) + 1),str)
-#define newstrcat(s1,s2) strcat(strcpy(malloc(strlen(s1)+strlen(s2)+1),s1),s2)
-
-
-struct modulenode *modules = NULL,*lastmodule = NULL;
-
-/* the linked list of libraries to be searched for missing imported
- symbols */
-
-struct librarynode * libraries = NULL, * lastlib = NULL;
-
-void *symtab; /* The symbol table */
-
-rdf_headerbuf * newheader ; /* New header to be written to output */
-
-/* loadmodule - find the characteristics of a module and add it to the
- * list of those being linked together */
-
-void loadmodule(char *filename)
-{
- struct modulenode *prev;
- if (! modules) {
- modules = malloc(sizeof(struct modulenode));
- lastmodule = modules;
- prev = NULL;
- }
- else {
- lastmodule->next = malloc(sizeof(struct modulenode));
- prev = lastmodule;
- lastmodule = lastmodule->next;
- }
-
- if (! lastmodule) {
- fputs("ldrdf: not enough memory\n",stderr);
- exit(1);
- }
-
- if (rdfopen(&lastmodule->f,filename)) {
- rdfperror("ldrdf",filename);
- exit(1);
- }
-
- lastmodule->header = NULL; /* header hasn't been loaded */
- lastmodule->name = filename;
- lastmodule->next = NULL;
-
- if (prev) {
- lastmodule->coderel = prev->coderel + prev->f.code_len;
- if (lastmodule->coderel % align != 0)
- lastmodule->coderel += align - (lastmodule->coderel % align);
- lastmodule->datarel = prev->datarel + prev->f.data_len;
- if (lastmodule->datarel % align != 0)
- lastmodule->datarel += align - (lastmodule->datarel % align);
- }
- else {
- lastmodule->coderel = 0;
- lastmodule->datarel = 0;
- }
-
- if (verbose)
- printf("%s code = %08lx (+%04lx), data = %08lx (+%04lx)\n",filename,
- lastmodule->coderel,lastmodule->f.code_len,
- lastmodule->datarel,lastmodule->f.data_len);
-
- lastmodule->header = malloc(lastmodule->f.header_len);
- if (!lastmodule->header) {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- if (rdfloadseg(&lastmodule->f,RDOFF_HEADER,lastmodule->header))
- {
- rdfperror("ldrdf",filename);
- exit(1);
- }
-}
-
-/* load_library add a library to list of libraries to search
- * for undefined symbols
- */
-
-void load_library(char * name)
-{
- if (verbose)
- printf("adding library %s to search path\n",name);
-
- if (! lastlib) {
- lastlib = libraries = malloc(sizeof(struct librarynode));
- }
- else
- {
- lastlib->next = malloc(sizeof(struct librarynode));
- lastlib = lastlib->next;
- }
-
- if (! lastlib) {
- fprintf(stderr, "ldrdf: out of memory\n");
- exit(1);
- }
- strcpy (lastlib->name = malloc (1+strlen(name)), name);
- lastlib->fp = NULL;
- lastlib->referenced = 0;
- lastlib->next = NULL;
-}
-
-
-/* build_symbols() step through each module's header, and locate
- * exported symbols, placing them in a global table
- */
-
-long bsslength;
-
-void mod_addsymbols(struct modulenode * mod)
-{
- rdfheaderrec *r;
- symtabEnt e;
- long cbBss;
-
- mod->bssrel = bsslength;
- cbBss = 0;
- rdfheaderrewind(&mod->f);
- while ((r = rdfgetheaderrec(&mod->f)))
- {
-
- if (r->type == 5) /* Allocate BSS */
- cbBss += r->b.amount;
-
- if (r->type != 3) continue; /* ignore all but export recs */
-
- e.segment = r->e.segment;
- e.offset = r->e.offset +
- (e.segment == 0 ? mod->coderel : /* 0 -> code */
- e.segment == 1 ? mod->datarel : /* 1 -> data */
- mod->bssrel) ; /* 2 -> bss */
-
- e.flags = 0;
- e.name = malloc(strlen(r->e.label) + 1);
- if (! e.name)
- {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
- strcpy(e.name,r->e.label);
- symtabInsert(symtab,&e);
- }
- bsslength += cbBss;
-}
-
-void build_symbols()
-{
- struct modulenode *mod;
-
- if (verbose) printf("building global symbol table:\n");
- newheader = rdfnewheader();
-
- symtab = symtabNew();
- bsslength = 0; /* keep track of location of BSS symbols */
-
- for (mod = modules; mod; mod = mod->next)
- {
- mod_addsymbols( mod );
- }
- if (verbose)
- {
- symtabDump(symtab,stdout);
- printf("BSS length = %ld bytes\n\n",bsslength);
- }
-}
-
-
-/* scan_libraries() search through headers of modules for undefined
- * symbols, and scan libraries for those symbols,
- * adding library modules found to list of modules
- * to load. */
-
-void scan_libraries(void)
-{
- struct modulenode * mod, * nm;
- struct librarynode * lib;
- rdfheaderrec * r;
- int found;
- char * tmp;
-
- if (verbose) printf("Scanning libraries for unresolved symbols...\n");
-
- mod = modules;
-
- while (mod)
- {
- rdfheaderrewind(&mod->f);
-
- while ((r = rdfgetheaderrec(&mod->f)))
- {
- if (r->type != 2) continue; /* not an import record */
- if ( symtabFind (symtab,r->i.label) )
- continue; /* symbol already defined */
-
- /* okay, we have an undefined symbol... step through
- the libraries now */
- if (verbose >= 2) {
- printf("undefined symbol '%s'...",r->i.label);
- fflush(stdout);
- }
-
- lib = libraries;
- found = 0;
-
- tmp = newstr(r->i.label);
- while (! found && lib)
- {
- /* move this to an outer loop...! */
- nm = malloc(sizeof(struct modulenode));
-
- if (rdl_searchlib(lib,tmp,&nm->f))
- { /* found a module in the library */
-
- /* create a modulenode for it */
-
- if (! nm) {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- nm->name = newstrcat(lib->name,nm->f.name);
- if (verbose >= 2) printf("found in '%s'\n",nm->name);
-
- nm->coderel = lastmodule->coderel + lastmodule->f.code_len;
- if (nm->coderel % align != 0)
- nm->coderel += align - (nm->coderel % align);
-
- nm->datarel = lastmodule->datarel + lastmodule->f.data_len;
- if (nm->datarel % align != 0)
- nm->datarel += align - (nm->datarel % align);
-
- nm->header = malloc(nm->f.header_len);
- if (! nm->header)
- {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- if (rdfloadseg(&nm->f,RDOFF_HEADER,nm->header))
- {
- rdfperror("ldrdf",nm->name);
- exit(1);
- }
-
- nm->next = NULL;
- found = 1;
- lastmodule->next = nm;
- lastmodule = nm;
-
- if (verbose)
- printf("%s code = %08lx (+%04lx), data = %08lx "
- "(+%04lx)\n",lastmodule->name,
- lastmodule->coderel,lastmodule->f.code_len,
- lastmodule->datarel,lastmodule->f.data_len);
-
- /* add the module's info to the symbol table */
- mod_addsymbols(nm);
- }
- else
- {
- if (rdl_error) {
- rdl_perror("ldrdf",lib->name);
- exit(1);
- }
- free(nm);
- }
- lib = lib->next;
- }
- free(tmp);
- if (!found && verbose >= 2) printf("not found\n");
- }
- mod = mod->next;
- }
-}
-
-/* load_segments() allocates memory for & loads the code & data segs
- * from the RDF modules
- */
-
-char *text,*data;
-long textlength,datalength;
-
-void load_segments(void)
-{
- struct modulenode *mod;
-
- if (!modules) {
- fprintf(stderr,"ldrdf: nothing to do\n");
- exit(0);
- }
- if (!lastmodule) {
- fprintf(stderr,"ldrdf: panic: module list exists, but lastmodule=NULL\n");
- exit(3);
- }
-
- if (verbose)
- printf("loading modules into memory\n");
-
- /* The following stops 16 bit DOS from crashing whilst attempting to
- work using segments > 64K */
- if (sizeof(int) == 2) { /* expect a 'code has no effect' warning on 32 bit
- platforms... */
- if (lastmodule->coderel + lastmodule->f.code_len > 65535 ||
- lastmodule->datarel + lastmodule->f.data_len > 65535) {
- fprintf(stderr,"ldrdf: segment length has exceeded 64K; use a 32 bit "
- "version.\nldrdf: code size = %05lx, data size = %05lx\n",
- lastmodule->coderel + lastmodule->f.code_len,
- lastmodule->datarel + lastmodule->f.data_len);
- exit(1);
- }
- }
-
- text = malloc(textlength = lastmodule->coderel + lastmodule->f.code_len);
- data = malloc(datalength = lastmodule->datarel + lastmodule->f.data_len);
-
- if (!text || !data) {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- mod = modules;
- while (mod) { /* load the segments for each module */
- if (verbose >= 2) printf(" loading %s\n",mod->name);
- if (rdfloadseg(&mod->f,RDOFF_CODE,&text[mod->coderel]) ||
- rdfloadseg(&mod->f,RDOFF_DATA,&data[mod->datarel])) {
- rdfperror("ldrdf",mod->name);
- exit(1);
- }
- rdfclose(&mod->f); /* close file; segments remain */
- mod = mod->next;
- }
-}
-
-/* link_segments() step through relocation records in each module's
- * header, fixing up references.
- */
-
-void link_segments(void)
-{
- struct modulenode *mod;
- Collection imports;
- symtabEnt *s;
- long rel,relto;
- char *seg;
- rdfheaderrec *r;
- int bRelative;
-
- if (verbose) printf("linking segments\n");
-
- collection_init(&imports);
-
- for (mod = modules; mod; mod = mod->next) {
- if (verbose >= 2) printf("* processing %s\n",mod->name);
- rdfheaderrewind(&mod->f);
- while((r = rdfgetheaderrec(&mod->f))) {
- if (verbose >= 3) printf("record type: %d\n",r->type);
- switch(r->type) {
- case 1: /* relocation record */
- if (r->r.segment >= 64) { /* Relative relocation; */
- bRelative = 1; /* need to find location relative */
- r->r.segment -= 64; /* to start of this segment */
- relto = r->r.segment == 0 ? mod->coderel : mod->datarel;
- }
- else
- {
- bRelative = 0; /* non-relative - need to relocate
- * at load time */
- relto = 0; /* placate optimiser warnings */
- }
-
- /* calculate absolute offset of reference, not rel to beginning of
- segment */
- r->r.offset += r->r.segment == 0 ? mod->coderel : mod->datarel;
-
- /* calculate the relocation factor to apply to the operand -
- the base address of one of this modules segments if referred
- segment is 0 - 2, or the address of an imported symbol
- otherwise. */
-
- if (r->r.refseg == 0) rel = mod->coderel;
- else if (r->r.refseg == 1) rel = mod->datarel;
- else if (r->r.refseg == 2) rel = mod->bssrel;
- else { /* cross module link - find reference */
- s = *colln(&imports,r->r.refseg - 2);
- if (!s) {
- fprintf(stderr,"ldrdf: link to undefined segment %04x in"
- " %s:%d\n", r->r.refseg,mod->name,r->r.segment);
- errors = 1;
- break;
- }
- rel = s->offset;
-
- r->r.refseg = s->segment; /* change referred segment,
- so that new header is
- correct */
- }
-
- if (bRelative) /* Relative - subtract current segment start */
- rel -= relto;
- else
- { /* Add new relocation header */
- rdfaddheader(newheader,r);
- }
-
- /* Work out which segment we're making changes to ... */
- if (r->r.segment == 0) seg = text;
- else if (r->r.segment == 1) seg = data;
- else {
- fprintf(stderr,"ldrdf: relocation in unknown segment %d in "
- "%s\n", r->r.segment,mod->name);
- errors = 1;
- break;
- }
-
- /* Add the relocation factor to the datum specified: */
-
- if (verbose >= 3)
- printf(" - relocating %d:%08lx by %08lx\n",r->r.segment,
- r->r.offset,rel);
-
- /**** The following code is non-portable. Rewrite it... ****/
- switch(r->r.length) {
- case 1:
- seg[r->r.offset] += (char) rel;
- break;
- case 2:
- *(int16 *)(seg + r->r.offset) += (int16) rel;
- break;
- case 4:
- *(long *)(seg + r->r.offset) += rel;
- break;
- }
- break;
-
- case 2: /* import record */
- s = symtabFind(symtab, r->i.label);
- if (s == NULL) {
- /* Need to add support for dynamic linkage */
- fprintf(stderr,"ldrdf: undefined symbol %s in module %s\n",
- r->i.label,mod->name);
- errors = 1;
- }
- else
- {
- *colln(&imports,r->i.segment - 2) = s;
- if (verbose >= 2)
- printf("imported %s as %04x\n", r->i.label, r->i.segment);
- }
- break;
-
- case 3: /* export; dump to output new version */
- s = symtabFind(symtab, r->e.label);
- if (! s) {
- fprintf(stderr,"ldrdf: internal error - undefined symbol %s "
- "exported in header of '%s'\n",r->e.label,mod->name);
- continue;
- }
- r->e.offset = s->offset;
- rdfaddheader(newheader,r);
- break;
-
- case 4: /* DLL record */
- rdfaddheader(newheader,r); /* copy straight to output */
- break;
- }
- }
- if (rdf_errno != 0) {
- rdfperror("ldrdf",mod->name);
- exit(1);
- }
- collection_reset(&imports);
- }
-}
-
-/* write_output() write linked program out to a file */
-
-void write_output(char *filename)
-{
- FILE * fp;
- rdfheaderrec r;
-
- if (verbose) printf("writing output to '%s'\n",filename);
-
- fp = fopen(filename,"wb");
- if (! fp)
- {
- fprintf(stderr,"ldrdf: could not open '%s' for writing\n",filename);
- exit(1);
- }
-
-
- /* add BSS length count to header... */
- if (bsslength)
- {
- r.type = 5;
- r.b.amount = bsslength;
- rdfaddheader(newheader,&r);
- }
-
- /* Write header */
- rdfwriteheader(fp,newheader);
- rdfdoneheader(newheader);
- newheader = NULL;
-
- /* Write text */
- if (fwrite(&textlength,1,4,fp) != 4
- || fwrite(text,1,textlength,fp) !=textlength)
- {
- fprintf(stderr,"ldrdf: error writing %s\n",filename);
- exit(1);
- }
-
- /* Write data */
- if (fwrite(&datalength,1,4,fp) != 4 ||
- fwrite(data,1,datalength,fp) != datalength)
- {
- fprintf (stderr,"ldrdf: error writing %s\n", filename);
- exit(1);
- }
- fclose(fp);
-}
-
-
-/* main program: interpret command line, and pass parameters on to
- * individual module loaders & the linker
- *
- * Command line format:
- * ldrdf [-o outfile | -x] [-r xxxx] [-v] [--] infile [infile ...]
- *
- * Default action is to output a file named 'aout.rdx'. -x specifies
- * that the linked object program should be executed, rather than
- * written to a file. -r specifies that the object program should
- * be prelocated at address 'xxxx'. This option cannot be used
- * in conjunction with -x.
- */
-
-const char *usagemsg = "usage:\n"
-" ldrdf [-o outfile | -x] [-a x] [-v] [-p x] [--] infile [infile ...]\n"
-" [-l<libname> ...]\n\n"
-" ldrdf -h displays this message\n"
-" ldrdf -r displays version information\n\n"
-" -o selects output filename (default is aout.rdx)\n"
-" -x causes ldrdx to link & execute rather than write to file\n"
-" -a x causes object program to be statically relocated to address 'x'\n"
-" -v turns on verbose mode\n"
-" -p x causes segments to be aligned (padded) to x byte boundaries\n"
-" (default is 16 bytes)\n"
-" -l<name> causes 'name' to be linked in as a library. Note no search is\n"
-" performed - the entire pathname MUST be specified.\n";
-
-void usage(void)
-{
- fputs(usagemsg,stderr);
-}
-
-int main(int argc,char **argv)
-{
- char *ofilename = "aout.rdx";
- long relocateaddr = -1; /* -1 if no relocation is to occur */
- int execute = 0; /* 1 to execute after linking, 0 otherwise */
- int procsw = 1; /* set to 0 by '--' */
- int tmp;
-
- if (argc == 1) {
- usage();
- exit(1);
- }
-
- /* process command line switches, and add modules specified to linked list
- of modules, keeping track of total memory required to load them */
-
- while(argv++,--argc) {
- if (procsw && !strcmp(*argv,"-h")) { /* Help command */
- usage(); exit(1);
- }
- else if (procsw && !strcmp(*argv,"-r")) {
- printf("ldrdf version %s (%s) (%s)\n",LDRDF_VERSION,_RDOFF_H,
- sizeof(int) == 2 ? "16 bit" : "32 bit");
- exit(1);
- }
- else if (procsw && !strcmp(*argv,"-o")) {
- ofilename = *++argv;
- --argc;
- if (execute) {
- fprintf(stderr,"ldrdf: -o and -x switches incompatible\n");
- exit(1);
- }
- if (verbose > 1) printf("output filename set to '%s'\n",ofilename);
- }
- else if (procsw && !strcmp(*argv,"-x")) {
- execute++;
- if (verbose > 1) printf("will execute linked object\n");
- }
- else if (procsw && !strcmp(*argv,"-a")) {
- relocateaddr = readnum(*++argv,&tmp);
- --argc;
- if (tmp) {
- fprintf(stderr,"ldrdf: error in parameter to '-a' switch: '%s'\n",
- *argv);
- exit(1);
- }
- if (execute) {
- fprintf(stderr,"ldrdf: -a and -x switches incompatible\n");
- exit(1);
- }
- if (verbose) printf("will relocate to %08lx\n",relocateaddr);
- }
- else if (procsw && !strcmp(*argv,"-v")) {
- verbose++;
- if (verbose == 1) printf("verbose mode selected\n");
- }
- else if (procsw && !strcmp(*argv,"-p")) {
- align = readnum(*++argv,&tmp);
- --argc;
- if (tmp) {
- fprintf(stderr,"ldrdf: error in parameter to '-p' switch: '%s'\n",
- *argv);
- exit(1);
- }
- if (align != 1 && align != 2 && align != 4 && align != 8 && align != 16
- && align != 32 && align != 256) {
- fprintf(stderr,"ldrdf: %d is an invalid alignment factor - must be"
- "1,2,4,8,16 or 256\n",align);
- exit(1);
- }
- if (verbose > 1) printf("alignment %d selected\n",align);
- }
- else if (procsw && !strncmp(*argv,"-l",2)) {
- load_library(*argv + 2);
- }
- else if (procsw && !strcmp(*argv,"--")) {
- procsw = 0;
- }
- else { /* is a filename */
- if (verbose > 1) printf("processing module %s\n",*argv);
- loadmodule(*argv);
- }
- }
-
- /* we should be scanning for unresolved references, and removing
- unreferenced modules from the list of modules here, so that
- we know about the final size once libraries have been linked in */
-
- build_symbols(); /* build a global symbol table... */
-
- scan_libraries(); /* check for imported symbols not in table,
- and ensure the relevant library modules
- are loaded */
-
- load_segments(); /* having calculated size of reqd segments, load
- each rdoff module's segments into memory */
-
- link_segments(); /* step through each module's header, and resolve
- references to the global symbol table.
- This also does local address fixups. */
-
- if (errors) {
- fprintf(stderr,"ldrdf: there were errors - aborted\n");
- exit(errors);
- }
- if (execute) {
- fprintf(stderr,"ldrdf: module execution not yet supported\n");
- exit(1);
- }
- if (relocateaddr != -1) {
- fprintf(stderr,"ldrdf: static relocation not yet supported\n");
- exit(1);
- }
-
- write_output(ofilename);
- return 0;
-}
diff --git a/rdoff/test/makelib b/rdoff/test/makelib
deleted file mode 100644
index baa4676..0000000
--- a/rdoff/test/makelib
+++ /dev/null
@@ -1,14 +0,0 @@
-
-LIBNAME=$1;
-shift;
-
-if [ "$LIBNAME" = "" ]; then
- echo 'Usage: makelib <library name> <module> [...]'
-fi
-
-rdflib c $LIBNAME
-
-for FILE in $*; do
- rdflib a $LIBNAME $FILE $FILE
-done
-
diff --git a/rdoff/v1/README b/rdoff/v1/README
deleted file mode 100644
index 56ad81b..0000000
--- a/rdoff/v1/README
+++ /dev/null
@@ -1,5 +0,0 @@
-This directory contains programs for working with RDOFF version 1 object
-files. RDOFF version 1 is no longer supported - you should now be using
-RDOFF2. If you are working with your own code, the changes you will need
-to make are very simple, and are outlined in the document Changes in the
-nasm/rdoff directory.
diff --git a/rdoff/v1/collectn.c b/rdoff/v1/collectn.c
deleted file mode 100644
index c265c95..0000000
--- a/rdoff/v1/collectn.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* collectn.c Implements variable length pointer arrays [collections]
- *
- * This file is public domain.
- */
-
-#include "collectn.h"
-#include <stdlib.h>
-
-void collection_init(Collection * c)
-{
- int i;
-
- for (i = 0; i < 32; i++) c->p[i] = NULL;
- c->next = NULL;
-}
-
-void ** colln(Collection * c, int index)
-{
- while (index >= 32) {
- index -= 32;
- if (c->next == NULL) {
- c->next = malloc(sizeof(Collection));
- collection_init(c->next);
- }
- c = c->next;
- }
- return &(c->p[index]);
-}
-
-void collection_reset(Collection *c)
-{
- int i;
- if (c->next) {
- collection_reset(c->next);
- free(c->next);
- }
-
- c->next = NULL;
- for (i = 0; i < 32; i++) c->p[i] = NULL;
-}
diff --git a/rdoff/v1/collectn.h b/rdoff/v1/collectn.h
deleted file mode 100644
index 2dc786e..0000000
--- a/rdoff/v1/collectn.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* collectn.h Header file for 'collection' abstract data type
- *
- * This file is public domain, and does not come under the NASM license.
- * It, along with 'collectn.c' implements what is basically a variable
- * length array (of pointers)
- */
-
-#ifndef _COLLECTN_H
-#define _COLLECTN_H
-
-typedef struct tagCollection {
- void *p[32]; /* array of pointers to objects */
-
- struct tagCollection *next;
-} Collection;
-
-void collection_init(Collection * c);
-void ** colln(Collection * c, int index);
-void collection_reset(Collection * c);
-
-#endif
-
diff --git a/rdoff/v1/ldrdf.c b/rdoff/v1/ldrdf.c
deleted file mode 100644
index 9e4a215..0000000
--- a/rdoff/v1/ldrdf.c
+++ /dev/null
@@ -1,728 +0,0 @@
-/* ldrdf.c RDOFF Object File linker/loader main program
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-
-/* TODO: Make the system skip a module (other than the first) if none
- * of the other specified modules contain a reference to it.
- * May require the system to make an extra pass of the modules to be
- * loaded eliminating those that aren't required.
- *
- * Support all the existing documented options...
- *
- * Support libaries (.a files - requires a 'ranlib' type utility)
- * (I think I've got this working, so I've upped the version)
- *
- * -s option to strip resolved symbols from exports. (Could make this an
- * external utility)
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "rdoff.h"
-#include "nasmlib.h"
-#include "symtab.h"
-#include "collectn.h"
-#include "rdlib.h"
-
-#define LDRDF_VERSION "0.30"
-
-/* global variables - those to set options: */
-
-int verbose = 0; /* reflects setting of command line switch */
-int align = 16;
-int errors = 0; /* set by functions to cause halt after current
- stage of processing */
-
-/* the linked list of modules that must be loaded & linked */
-
-struct modulenode {
- rdffile f; /* the file */
- long coderel; /* module's code relocation factor */
- long datarel; /* module's data relocation factor */
- long bssrel; /* module's bss data reloc. factor */
- void * header; /* header location, if loaded */
- char * name; /* filename */
- struct modulenode *next;
-};
-
-#define newstr(str) strcpy(malloc(strlen(str) + 1),str)
-#define newstrcat(s1,s2) strcat(strcpy(malloc(strlen(s1)+strlen(s2)+1),s1),s2)
-
-
-struct modulenode *modules = NULL,*lastmodule = NULL;
-
-/* the linked list of libraries to be searched for missing imported
- symbols */
-
-struct librarynode * libraries = NULL, * lastlib = NULL;
-
-void *symtab; /* The symbol table */
-
-rdf_headerbuf * newheader ; /* New header to be written to output */
-
-/* loadmodule - find the characteristics of a module and add it to the
- * list of those being linked together */
-
-void loadmodule(char *filename)
-{
- struct modulenode *prev;
- if (! modules) {
- modules = malloc(sizeof(struct modulenode));
- lastmodule = modules;
- prev = NULL;
- }
- else {
- lastmodule->next = malloc(sizeof(struct modulenode));
- prev = lastmodule;
- lastmodule = lastmodule->next;
- }
-
- if (! lastmodule) {
- fputs("ldrdf: not enough memory\n",stderr);
- exit(1);
- }
-
- if (rdfopen(&lastmodule->f,filename)) {
- rdfperror("ldrdf",filename);
- exit(1);
- }
-
- lastmodule->header = NULL; /* header hasn't been loaded */
- lastmodule->name = filename;
- lastmodule->next = NULL;
-
- if (prev) {
- lastmodule->coderel = prev->coderel + prev->f.code_len;
- if (lastmodule->coderel % align != 0)
- lastmodule->coderel += align - (lastmodule->coderel % align);
- lastmodule->datarel = prev->datarel + prev->f.data_len;
- if (lastmodule->datarel % align != 0)
- lastmodule->datarel += align - (lastmodule->datarel % align);
- }
- else {
- lastmodule->coderel = 0;
- lastmodule->datarel = 0;
- }
-
- if (verbose)
- printf("%s code = %08lx (+%04lx), data = %08lx (+%04lx)\n",filename,
- lastmodule->coderel,lastmodule->f.code_len,
- lastmodule->datarel,lastmodule->f.data_len);
-
- lastmodule->header = malloc(lastmodule->f.header_len);
- if (!lastmodule->header) {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- if (rdfloadseg(&lastmodule->f,RDOFF_HEADER,lastmodule->header))
- {
- rdfperror("ldrdf",filename);
- exit(1);
- }
-}
-
-/* load_library add a library to list of libraries to search
- * for undefined symbols
- */
-
-void load_library(char * name)
-{
- if (verbose)
- printf("adding library %s to search path\n",name);
-
- if (! lastlib) {
- lastlib = libraries = malloc(sizeof(struct librarynode));
- }
- else
- {
- lastlib->next = malloc(sizeof(struct librarynode));
- lastlib = lastlib->next;
- }
-
- if (! lastlib) {
- fprintf(stderr, "ldrdf: out of memory\n");
- exit(1);
- }
- strcpy (lastlib->name = malloc (1+strlen(name)), name);
- lastlib->fp = NULL;
- lastlib->referenced = 0;
- lastlib->next = NULL;
-}
-
-
-/* build_symbols() step through each module's header, and locate
- * exported symbols, placing them in a global table
- */
-
-long bsslength;
-
-void mod_addsymbols(struct modulenode * mod)
-{
- rdfheaderrec *r;
- symtabEnt e;
- long cbBss;
-
- mod->bssrel = bsslength;
- cbBss = 0;
- rdfheaderrewind(&mod->f);
- while ((r = rdfgetheaderrec(&mod->f)))
- {
-
- if (r->type == 5) /* Allocate BSS */
- cbBss += r->b.amount;
-
- if (r->type != 3) continue; /* ignore all but export recs */
-
- e.segment = r->e.segment;
- e.offset = r->e.offset +
- (e.segment == 0 ? mod->coderel : /* 0 -> code */
- e.segment == 1 ? mod->datarel : /* 1 -> data */
- mod->bssrel) ; /* 2 -> bss */
-
- e.flags = 0;
- e.name = malloc(strlen(r->e.label) + 1);
- if (! e.name)
- {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
- strcpy(e.name,r->e.label);
- symtabInsert(symtab,&e);
- }
- bsslength += cbBss;
-}
-
-void build_symbols()
-{
- struct modulenode *mod;
-
- if (verbose) printf("building global symbol table:\n");
- newheader = rdfnewheader();
-
- symtab = symtabNew();
- bsslength = 0; /* keep track of location of BSS symbols */
-
- for (mod = modules; mod; mod = mod->next)
- {
- mod_addsymbols( mod );
- }
- if (verbose)
- {
- symtabDump(symtab,stdout);
- printf("BSS length = %ld bytes\n\n",bsslength);
- }
-}
-
-
-/* scan_libraries() search through headers of modules for undefined
- * symbols, and scan libraries for those symbols,
- * adding library modules found to list of modules
- * to load. */
-
-void scan_libraries(void)
-{
- struct modulenode * mod, * nm;
- struct librarynode * lib;
- rdfheaderrec * r;
- int found;
- char * tmp;
-
- if (verbose) printf("Scanning libraries for unresolved symbols...\n");
-
- mod = modules;
-
- while (mod)
- {
- rdfheaderrewind(&mod->f);
-
- while ((r = rdfgetheaderrec(&mod->f)))
- {
- if (r->type != 2) continue; /* not an import record */
- if ( symtabFind (symtab,r->i.label) )
- continue; /* symbol already defined */
-
- /* okay, we have an undefined symbol... step through
- the libraries now */
- if (verbose >= 2) {
- printf("undefined symbol '%s'...",r->i.label);
- fflush(stdout);
- }
-
- lib = libraries;
- found = 0;
-
- tmp = newstr(r->i.label);
- while (! found && lib)
- {
- /* move this to an outer loop...! */
- nm = malloc(sizeof(struct modulenode));
-
- if (rdl_searchlib(lib,tmp,&nm->f))
- { /* found a module in the library */
-
- /* create a modulenode for it */
-
- if (! nm) {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- nm->name = newstrcat(lib->name,nm->f.name);
- if (verbose >= 2) printf("found in '%s'\n",nm->name);
-
- nm->coderel = lastmodule->coderel + lastmodule->f.code_len;
- if (nm->coderel % align != 0)
- nm->coderel += align - (nm->coderel % align);
-
- nm->datarel = lastmodule->datarel + lastmodule->f.data_len;
- if (nm->datarel % align != 0)
- nm->datarel += align - (nm->datarel % align);
-
- nm->header = malloc(nm->f.header_len);
- if (! nm->header)
- {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- if (rdfloadseg(&nm->f,RDOFF_HEADER,nm->header))
- {
- rdfperror("ldrdf",nm->name);
- exit(1);
- }
-
- nm->next = NULL;
- found = 1;
- lastmodule->next = nm;
- lastmodule = nm;
-
- if (verbose)
- printf("%s code = %08lx (+%04lx), data = %08lx "
- "(+%04lx)\n",lastmodule->name,
- lastmodule->coderel,lastmodule->f.code_len,
- lastmodule->datarel,lastmodule->f.data_len);
-
- /* add the module's info to the symbol table */
- mod_addsymbols(nm);
- }
- else
- {
- if (rdl_error) {
- rdl_perror("ldrdf",lib->name);
- exit(1);
- }
- free(nm);
- }
- lib = lib->next;
- }
- free(tmp);
- if (!found && verbose >= 2) printf("not found\n");
- }
- mod = mod->next;
- }
-}
-
-/* load_segments() allocates memory for & loads the code & data segs
- * from the RDF modules
- */
-
-char *text,*data;
-long textlength,datalength;
-
-void load_segments(void)
-{
- struct modulenode *mod;
-
- if (!modules) {
- fprintf(stderr,"ldrdf: nothing to do\n");
- exit(0);
- }
- if (!lastmodule) {
- fprintf(stderr,"ldrdf: panic: module list exists, but lastmodule=NULL\n");
- exit(3);
- }
-
- if (verbose)
- printf("loading modules into memory\n");
-
- /* The following stops 16 bit DOS from crashing whilst attempting to
- work using segments > 64K */
- if (sizeof(int) == 2) { /* expect a 'code has no effect' warning on 32 bit
- platforms... */
- if (lastmodule->coderel + lastmodule->f.code_len > 65535 ||
- lastmodule->datarel + lastmodule->f.data_len > 65535) {
- fprintf(stderr,"ldrdf: segment length has exceeded 64K; use a 32 bit "
- "version.\nldrdf: code size = %05lx, data size = %05lx\n",
- lastmodule->coderel + lastmodule->f.code_len,
- lastmodule->datarel + lastmodule->f.data_len);
- exit(1);
- }
- }
-
- text = malloc(textlength = lastmodule->coderel + lastmodule->f.code_len);
- data = malloc(datalength = lastmodule->datarel + lastmodule->f.data_len);
-
- if (!text || !data) {
- fprintf(stderr,"ldrdf: out of memory\n");
- exit(1);
- }
-
- mod = modules;
- while (mod) { /* load the segments for each module */
- if (verbose >= 2) printf(" loading %s\n",mod->name);
- if (rdfloadseg(&mod->f,RDOFF_CODE,&text[mod->coderel]) ||
- rdfloadseg(&mod->f,RDOFF_DATA,&data[mod->datarel])) {
- rdfperror("ldrdf",mod->name);
- exit(1);
- }
- rdfclose(&mod->f); /* close file; segments remain */
- mod = mod->next;
- }
-}
-
-/* link_segments() step through relocation records in each module's
- * header, fixing up references.
- */
-
-void link_segments(void)
-{
- struct modulenode *mod;
- Collection imports;
- symtabEnt *s;
- long rel,relto;
- char *seg;
- rdfheaderrec *r;
- int bRelative;
-
- if (verbose) printf("linking segments\n");
-
- collection_init(&imports);
-
- for (mod = modules; mod; mod = mod->next) {
- if (verbose >= 2) printf("* processing %s\n",mod->name);
- rdfheaderrewind(&mod->f);
- while((r = rdfgetheaderrec(&mod->f))) {
- if (verbose >= 3) printf("record type: %d\n",r->type);
- switch(r->type) {
- case 1: /* relocation record */
- if (r->r.segment >= 64) { /* Relative relocation; */
- bRelative = 1; /* need to find location relative */
- r->r.segment -= 64; /* to start of this segment */
- relto = r->r.segment == 0 ? mod->coderel : mod->datarel;
- }
- else
- {
- bRelative = 0; /* non-relative - need to relocate
- * at load time */
- relto = 0; /* placate optimiser warnings */
- }
-
- /* calculate absolute offset of reference, not rel to beginning of
- segment */
- r->r.offset += r->r.segment == 0 ? mod->coderel : mod->datarel;
-
- /* calculate the relocation factor to apply to the operand -
- the base address of one of this modules segments if referred
- segment is 0 - 2, or the address of an imported symbol
- otherwise. */
-
- if (r->r.refseg == 0) rel = mod->coderel;
- else if (r->r.refseg == 1) rel = mod->datarel;
- else if (r->r.refseg == 2) rel = mod->bssrel;
- else { /* cross module link - find reference */
- s = *colln(&imports,r->r.refseg - 2);
- if (!s) {
- fprintf(stderr,"ldrdf: link to undefined segment %04x in"
- " %s:%d\n", r->r.refseg,mod->name,r->r.segment);
- errors = 1;
- break;
- }
- rel = s->offset;
-
- r->r.refseg = s->segment; /* change referred segment,
- so that new header is
- correct */
- }
-
- if (bRelative) /* Relative - subtract current segment start */
- rel -= relto;
- else
- { /* Add new relocation header */
- rdfaddheader(newheader,r);
- }
-
- /* Work out which segment we're making changes to ... */
- if (r->r.segment == 0) seg = text;
- else if (r->r.segment == 1) seg = data;
- else {
- fprintf(stderr,"ldrdf: relocation in unknown segment %d in "
- "%s\n", r->r.segment,mod->name);
- errors = 1;
- break;
- }
-
- /* Add the relocation factor to the datum specified: */
-
- if (verbose >= 3)
- printf(" - relocating %d:%08lx by %08lx\n",r->r.segment,
- r->r.offset,rel);
-
- /**** The following code is non-portable. Rewrite it... ****/
- switch(r->r.length) {
- case 1:
- seg[r->r.offset] += (char) rel;
- break;
- case 2:
- *(int16 *)(seg + r->r.offset) += (int16) rel;
- break;
- case 4:
- *(long *)(seg + r->r.offset) += rel;
- break;
- }
- break;
-
- case 2: /* import record */
- s = symtabFind(symtab, r->i.label);
- if (s == NULL) {
- /* Need to add support for dynamic linkage */
- fprintf(stderr,"ldrdf: undefined symbol %s in module %s\n",
- r->i.label,mod->name);
- errors = 1;
- }
- else
- {
- *colln(&imports,r->i.segment - 2) = s;
- if (verbose >= 2)
- printf("imported %s as %04x\n", r->i.label, r->i.segment);
- }
- break;
-
- case 3: /* export; dump to output new version */
- s = symtabFind(symtab, r->e.label);
- if (! s) {
- fprintf(stderr,"ldrdf: internal error - undefined symbol %s "
- "exported in header of '%s'\n",r->e.label,mod->name);
- continue;
- }
- r->e.offset = s->offset;
- rdfaddheader(newheader,r);
- break;
-
- case 4: /* DLL record */
- rdfaddheader(newheader,r); /* copy straight to output */
- break;
- }
- }
- if (rdf_errno != 0) {
- rdfperror("ldrdf",mod->name);
- exit(1);
- }
- collection_reset(&imports);
- }
-}
-
-/* write_output() write linked program out to a file */
-
-void write_output(char *filename)
-{
- FILE * fp;
- rdfheaderrec r;
-
- if (verbose) printf("writing output to '%s'\n",filename);
-
- fp = fopen(filename,"wb");
- if (! fp)
- {
- fprintf(stderr,"ldrdf: could not open '%s' for writing\n",filename);
- exit(1);
- }
-
-
- /* add BSS length count to header... */
- if (bsslength)
- {
- r.type = 5;
- r.b.amount = bsslength;
- rdfaddheader(newheader,&r);
- }
-
- /* Write header */
- rdfwriteheader(fp,newheader);
- rdfdoneheader(newheader);
- newheader = NULL;
-
- /* Write text */
- if (fwrite(&textlength,1,4,fp) != 4
- || fwrite(text,1,textlength,fp) !=textlength)
- {
- fprintf(stderr,"ldrdf: error writing %s\n",filename);
- exit(1);
- }
-
- /* Write data */
- if (fwrite(&datalength,1,4,fp) != 4 ||
- fwrite(data,1,datalength,fp) != datalength)
- {
- fprintf (stderr,"ldrdf: error writing %s\n", filename);
- exit(1);
- }
- fclose(fp);
-}
-
-
-/* main program: interpret command line, and pass parameters on to
- * individual module loaders & the linker
- *
- * Command line format:
- * ldrdf [-o outfile | -x] [-r xxxx] [-v] [--] infile [infile ...]
- *
- * Default action is to output a file named 'aout.rdx'. -x specifies
- * that the linked object program should be executed, rather than
- * written to a file. -r specifies that the object program should
- * be prelocated at address 'xxxx'. This option cannot be used
- * in conjunction with -x.
- */
-
-const char *usagemsg = "usage:\n"
-" ldrdf [-o outfile | -x] [-a x] [-v] [-p x] [--] infile [infile ...]\n"
-" [-l<libname> ...]\n\n"
-" ldrdf -h displays this message\n"
-" ldrdf -r displays version information\n\n"
-" -o selects output filename (default is aout.rdx)\n"
-" -x causes ldrdx to link & execute rather than write to file\n"
-" -a x causes object program to be statically relocated to address 'x'\n"
-" -v turns on verbose mode\n"
-" -p x causes segments to be aligned (padded) to x byte boundaries\n"
-" (default is 16 bytes)\n"
-" -l<name> causes 'name' to be linked in as a library. Note no search is\n"
-" performed - the entire pathname MUST be specified.\n";
-
-void usage(void)
-{
- fputs(usagemsg,stderr);
-}
-
-int main(int argc,char **argv)
-{
- char *ofilename = "aout.rdx";
- long relocateaddr = -1; /* -1 if no relocation is to occur */
- int execute = 0; /* 1 to execute after linking, 0 otherwise */
- int procsw = 1; /* set to 0 by '--' */
- int tmp;
-
- if (argc == 1) {
- usage();
- exit(1);
- }
-
- /* process command line switches, and add modules specified to linked list
- of modules, keeping track of total memory required to load them */
-
- while(argv++,--argc) {
- if (procsw && !strcmp(*argv,"-h")) { /* Help command */
- usage(); exit(1);
- }
- else if (procsw && !strcmp(*argv,"-r")) {
- printf("ldrdf version %s (%s) (%s)\n",LDRDF_VERSION,_RDOFF_H,
- sizeof(int) == 2 ? "16 bit" : "32 bit");
- exit(1);
- }
- else if (procsw && !strcmp(*argv,"-o")) {
- ofilename = *++argv;
- --argc;
- if (execute) {
- fprintf(stderr,"ldrdf: -o and -x switches incompatible\n");
- exit(1);
- }
- if (verbose > 1) printf("output filename set to '%s'\n",ofilename);
- }
- else if (procsw && !strcmp(*argv,"-x")) {
- execute++;
- if (verbose > 1) printf("will execute linked object\n");
- }
- else if (procsw && !strcmp(*argv,"-a")) {
- relocateaddr = readnum(*++argv,&tmp);
- --argc;
- if (tmp) {
- fprintf(stderr,"ldrdf: error in parameter to '-a' switch: '%s'\n",
- *argv);
- exit(1);
- }
- if (execute) {
- fprintf(stderr,"ldrdf: -a and -x switches incompatible\n");
- exit(1);
- }
- if (verbose) printf("will relocate to %08lx\n",relocateaddr);
- }
- else if (procsw && !strcmp(*argv,"-v")) {
- verbose++;
- if (verbose == 1) printf("verbose mode selected\n");
- }
- else if (procsw && !strcmp(*argv,"-p")) {
- align = readnum(*++argv,&tmp);
- --argc;
- if (tmp) {
- fprintf(stderr,"ldrdf: error in parameter to '-p' switch: '%s'\n",
- *argv);
- exit(1);
- }
- if (align != 1 && align != 2 && align != 4 && align != 8 && align != 16
- && align != 32 && align != 256) {
- fprintf(stderr,"ldrdf: %d is an invalid alignment factor - must be"
- "1,2,4,8,16 or 256\n",align);
- exit(1);
- }
- if (verbose > 1) printf("alignment %d selected\n",align);
- }
- else if (procsw && !strncmp(*argv,"-l",2)) {
- load_library(*argv + 2);
- }
- else if (procsw && !strcmp(*argv,"--")) {
- procsw = 0;
- }
- else { /* is a filename */
- if (verbose > 1) printf("processing module %s\n",*argv);
- loadmodule(*argv);
- }
- }
-
- /* we should be scanning for unresolved references, and removing
- unreferenced modules from the list of modules here, so that
- we know about the final size once libraries have been linked in */
-
- build_symbols(); /* build a global symbol table... */
-
- scan_libraries(); /* check for imported symbols not in table,
- and ensure the relevant library modules
- are loaded */
-
- load_segments(); /* having calculated size of reqd segments, load
- each rdoff module's segments into memory */
-
- link_segments(); /* step through each module's header, and resolve
- references to the global symbol table.
- This also does local address fixups. */
-
- if (errors) {
- fprintf(stderr,"ldrdf: there were errors - aborted\n");
- exit(errors);
- }
- if (execute) {
- fprintf(stderr,"ldrdf: module execution not yet supported\n");
- exit(1);
- }
- if (relocateaddr != -1) {
- fprintf(stderr,"ldrdf: static relocation not yet supported\n");
- exit(1);
- }
-
- write_output(ofilename);
- return 0;
-}
diff --git a/rdoff/v1/rdf.doc b/rdoff/v1/rdf.doc
deleted file mode 100644
index 300c2bc..0000000
--- a/rdoff/v1/rdf.doc
+++ /dev/null
@@ -1,99 +0,0 @@
-RDOFF: Relocatable Dynamically-linked Object File Format
-========================================================
-
-RDOFF was designed initially to test the object-file production
-interface to NASM. It soon became apparent that it could be enhanced
-for use in serious applications due to its simplicity; code to load
-and execute an RDOFF object module is very simple. It also contains
-enhancements to allow it to be linked with a dynamic link library at
-either run- or load- time, depending on how complex you wish to make
-your loader.
-
-The RDOFF format (version 1.1, as produced by NASM v0.91) is defined
-as follows:
-
-The first six bytes of the file contain the string 'RDOFF1'. Other
-versions of the format may contain other last characters other than
-'1' - all little endian versions of the file will always contain an
-ASCII character with value greater than 32. If RDOFF is used on a
-big-endian machine at some point in the future, the version will be
-encoded in decimal rather than ASCII, so will be below 32.
-
-All multi-byte fields follwing this are encoded in either little- or
-big-endian format depending on the system described by this version
-information. Object files should be encoded in the endianness of
-their target machine; files of incorrect endianness will be rejected
-by the loader - this means that loaders do not need to convert
-endianness, as RDOFF has been designed with simplicity of loading at
-the forefront of the design requirements.
-
-The next 4 byte field is the length of the header in bytes. The
-header consists of a sequence of variable length records. Each
-record's type is identified by the first byte of the record. Record
-types 1-4 are currently supported. Record type 5 will be added in
-the near future, when I implement BSS segments. Record type 6 may be
-to do with debugging, when I get debugging implemented.
-
-Type 1: Relocation
-==================
-
-Offset Length Description
-0 1 Type (contains 1)
-1 1 Segment that contains reference (0 = text, 1 = data)
- Add 64 to this number to indicate a relative linkage
- to an external symbol (see notes)
-2 4 Offset of reference
-6 1 Length of reference (1,2 or 4 bytes)
-7 2 Segment to which reference is made (0 = text, 1 =
- data, 2 = BSS [when implemented]) others are external
- symbols.
-
-Total length = 9 bytes
-
-Type 2: Symbol Import
-=====================
-
-0 1 Type (2)
-1 2 Segment number that will be used in references to this
- symbol.
-3 ? Null terminated string containing label (up to 32
- chars) to match against exports in linkage.
-
-Type 3: Symbol Export
-=====================
-
-0 1 Type (3)
-1 1 Segment containing object to be exported (0/1/2)
-2 4 Offset within segment
-6 ? Null terminate string containing label to export (32
- char maximum length)
-
-Type 4: Dynamic Link Library
-============================
-
-0 1 Type (4)
-1 ? Library name (up to 128 chars)
-
-Type 5: Reserve BSS
-===================
-
-0 1 Type (5)
-1 4 Amount of BSS space to reserve in bytes
-
-Total length: 5 bytes
-
------------------------------------------------------------------------------
-
-Following the header is the text (code) segment. This is preceded by
-a 4-byte integer, which is its length in bytes. This is followed by
-the length of the data segment (also 4 bytes), and finally the data
-segment.
-
-Notes
-=====
-
-Relative linking: The number stored at the address is offset
-required from the imported symbol, with the address of the end of
-the instruction subtracted from it. This means that the linker can
-simply add the address of the label relative to the beginning of the
-current segment to it.
diff --git a/rdoff/v1/rdf2bin.c b/rdoff/v1/rdf2bin.c
deleted file mode 100644
index 97b45b4..0000000
--- a/rdoff/v1/rdf2bin.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/* rdf2bin: convert an RDOFF object file to flat binary */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "rdfload.h"
-#include "rdoff.h"
-#include "nasmlib.h"
-
-long origin = 0;
-int align = 16;
-
-char *getfilename(char * pathname)
-{
- char * lastslash = pathname - 1;
- char * i = pathname;
-
- while ( *i ) {
- if (*i == '/') lastslash = i;
- i++;
- }
- return lastslash + 1;
-}
-
-int main(int argc, char **argv)
-{
- rdfmodule * m;
- int tmp;
- FILE *of;
- char * padding;
- int codepad, datapad;
-
- if (argc < 2) {
- puts("Usage: rdf2bin [-o relocation-origin] [-p segment-alignment] "
- "input-file output-file");
- puts(" rdf2com [-p segment-alignment] input-file output-file");
- return 1;
- }
-
- if (! nasm_stricmp(getfilename(*argv),"rdf2com")) {
- origin = 0x100;
- }
- argv++, argc--;
-
- while (argc > 2) {
- if (! strcmp(*argv,"-o")) {
- argv++, argc--;
- origin = readnum(*argv, &tmp);
- if (tmp) {
- fprintf(stderr,"rdf2bin: invalid parameter: %s\n",*argv);
- return 1;
- }
- } else if (! strcmp(*argv,"-p")) {
- argv++, argc--;
- align = readnum(*argv, &tmp);
- if (tmp) {
- fprintf(stderr,"rdf2bin: invalid parameter: %s\n",*argv);
- return 1;
- }
- } else
- break;
-
- argv++, argc--;
- }
- if (argc < 2) {
- puts("rdf2bin: required parameter missing");
- return -1;
- }
- m = rdfload(*argv);
-
- if (! m)
- {
- rdfperror("rdf2bin",*argv);
- return 1;
- }
- printf("relocating %s: origin=%lx, align=%d\n",*argv,origin,align);
-
- m->textrel = origin;
- m->datarel = origin + m->f.code_len;
- if (m->datarel % align != 0) {
- codepad = align - (m->datarel % align);
- m->datarel += codepad;
- }
- else
- codepad = 0;
-
- m->bssrel = m->datarel + m->f.data_len;
- if (m->bssrel % align != 0) {
- datapad = align - (m->bssrel % align);
- m->bssrel += datapad;
- }
- else
- datapad = 0;
-
- printf("code: %08lx\ndata: %08lx\nbss: %08lx\n",
- m->textrel, m->datarel, m->bssrel);
-
- rdf_relocate(m);
-
- argv++;
-
- of = fopen(*argv,"wb");
- if (!of) {
- fprintf(stderr,"rdf2bin: could not open output file %s\n",*argv);
- return 1;
- }
-
- padding = malloc(align);
- if (!padding) {
- fprintf(stderr,"rdf2bin: out of memory\n");
- return 1;
- }
-
- if (fwrite(m->t,1,m->f.code_len,of) != m->f.code_len ||
- fwrite(padding,1,codepad,of) != codepad ||
- fwrite(m->d,1,m->f.data_len,of) != m->f.data_len)
- {
- fprintf(stderr,"rdf2bin: error writing to %s\n", *argv);
- return 1;
- }
-
- fclose(of);
- return 0;
-}
diff --git a/rdoff/v1/rdfdump.c b/rdoff/v1/rdfdump.c
deleted file mode 100644
index 080c2e7..0000000
--- a/rdoff/v1/rdfdump.c
+++ /dev/null
@@ -1,167 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-FILE *infile;
-
-long translatelong(long in) { /* translate from little endian to
- local representation */
- long r;
- unsigned char *i;
-
- i = (unsigned char *)&in;
- r = i[3];
- r = (r << 8) + i[2];
- r = (r << 8) + i[1];
- r = (r << 8) + *i;
-
- return r;
-}
-
-int translateshort(short in) {
- int r;
- unsigned char *i;
-
- i = (unsigned char *)&in;
- r = (i[1] << 8) + *i;
-
- return r;
-}
-void print_header(long length) {
- char buf[129],t,s,l;
- long o,ll;
- short rs;
-
- while (length > 0) {
- fread(&t,1,1,infile);
- switch(t) {
- case 1: /* relocation record */
- fread(&s,1,1,infile);
- fread(&o,4,1,infile);
- fread(&l,1,1,infile);
- fread(&rs,2,1,infile);
- printf(" relocation: location (%04x:%08lx), length %d, "
- "referred seg %04x\n",(int)s,translatelong(o),(int)l,
- translateshort(rs));
- length -= 9;
- break;
- case 2: /* import record */
- fread(&rs,2,1,infile);
- ll = 0;
- do {
- fread(&buf[ll],1,1,infile);
- } while (buf[ll++]);
- printf(" import: segment %04x = %s\n",translateshort(rs),buf);
- length -= ll + 3;
- break;
- case 3: /* export record */
- fread(&s,1,1,infile);
- fread(&o,4,1,infile);
- ll = 0;
- do {
- fread(&buf[ll],1,1,infile);
- } while (buf[ll++]);
- printf(" export: (%04x:%08lx) = %s\n",(int)s,translatelong(o),buf);
- length -= ll + 6;
- break;
- case 4: /* DLL record */
- ll = 0;
- do {
- fread(&buf[ll],1,1,infile);
- } while (buf[ll++]);
- printf(" dll: %s\n",buf);
- length -= ll + 1;
- break;
- case 5: /* BSS reservation */
- fread(&ll,4,1,infile);
- printf(" bss reservation: %08lx bytes\n",translatelong(ll));
- length -= 5;
- break;
- default:
- printf(" unrecognised record (type %d)\n",(int)t);
- length --;
- }
- }
-}
-
-int main(int argc,char **argv) {
- char id[7];
- long l;
- int verbose = 0;
- long offset;
-
- puts("RDOFF Dump utility v1.1 (C) Copyright 1996 Julian R Hall");
-
- if (argc < 2) {
- fputs("Usage: rdfdump [-v] <filename>\n",stderr);
- exit(1);
- }
-
- if (! strcmp (argv[1], "-v") )
- {
- verbose = 1;
- if (argc < 3)
- {
- fputs("required parameter missing\n",stderr);
- exit(1);
- }
- argv++;
- }
-
- infile = fopen(argv[1],"rb");
- if (! infile) {
- fprintf(stderr,"rdfdump: Could not open %s",argv[1]);
- exit(1);
- }
-
- fread(id,6,1,infile);
- if (strncmp(id,"RDOFF",5)) {
- fputs("rdfdump: File does not contain valid RDOFF header\n",stderr);
- exit(1);
- }
-
- printf("File %s: RDOFF version %c\n\n",argv[1],id[5]);
- if (id[5] < '1' || id[5] > '1') {
- fprintf(stderr,"rdfdump: unknown RDOFF version '%c'\n",id[5]);
- exit(1);
- }
-
- fread(&l,4,1,infile);
- l = translatelong(l);
- printf("Header (%ld bytes):\n",l);
- print_header(l);
-
- fread(&l,4,1,infile);
- l = translatelong(l);
- printf("\nText segment length = %ld bytes\n",l);
- offset = 0;
- while(l--) {
- fread(id,1,1,infile);
- if (verbose) {
- if (offset % 16 == 0)
- printf("\n%08lx ", offset);
- printf(" %02x",(int) (unsigned char)id[0]);
- offset++;
- }
- }
- if (verbose) printf("\n\n");
-
- fread(&l,4,1,infile);
- l = translatelong(l);
- printf("Data segment length = %ld bytes\n",l);
-
- if (verbose)
- {
- offset = 0;
- while (l--) {
- fread(id,1,1,infile);
- if (offset % 16 == 0)
- printf("\n%08lx ", offset);
- printf(" %02x",(int) (unsigned char) id[0]);
- offset++;
- }
- printf("\n");
- }
- fclose(infile);
- return 0;
-}
diff --git a/rdoff/v1/rdflib.c b/rdoff/v1/rdflib.c
deleted file mode 100644
index 5846562..0000000
--- a/rdoff/v1/rdflib.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/* rdflib - manipulate RDOFF library files (.rdl) */
-
-/* an rdoff library is simply a sequence of RDOFF object files, each
- preceded by the name of the module, an ASCII string of up to 255
- characters, terminated by a zero. There may be an optional
- directory placed on the end of the file. The format of the
- directory will be 'RDL' followed by a version number, followed by
- the length of the directory, and then the directory, the format of
- which has not yet been designed. */
-
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-
-/* functions supported:
- create a library (no extra operands required)
- add a module from a library (requires filename and name to give mod.)
- remove a module from a library (requires given name)
- extract a module from the library (requires given name and filename)
- list modules */
-
-const char *usage =
- "usage:\n"
- " rdflib x libname [extra operands]\n\n"
- " where x is one of:\n"
- " c - create library\n"
- " a - add module (operands = filename module-name)\n"
- " r - remove (module-name)\n"
- " x - extract (module-name filename)\n"
- " t - list\n";
-
-char **_argv;
-
-#define _ENDIANNESS 0 /* 0 for little, 1 for big */
-
-static void longtolocal(long * l)
-{
-#if _ENDIANNESS
- unsigned char t;
- unsigned char * p = (unsigned char *) l;
-
- t = p[0];
- p[0] = p[3];
- p[3] = t;
- t = p[1];
- p[1] = p[2];
- p[2] = p[1];
-#endif
-}
-
-void copybytes(FILE *fp, FILE *fp2, int n)
-{
- int i,t;
-
- for (i = 0 ; i < n; i++ )
- {
- t = fgetc(fp);
- if (t == EOF)
- {
- fprintf(stderr,"ldrdf: premature end of file in '%s'\n",
- _argv[2]);
- exit(1);
- }
- if (fp2)
- if (fputc(t, fp2) == EOF)
- {
- fprintf(stderr,"ldrdf: write error\n");
- exit(1);
- }
- }
-}
-
-long copylong(FILE *fp, FILE *fp2)
-{
- long l;
- int i,t;
- unsigned char * p = (unsigned char *) &l;
-
-
- for (i = 0 ; i < 4; i++ ) /* skip magic no */
- {
- t = fgetc(fp);
- if (t == EOF)
- {
- fprintf(stderr,"ldrdf: premature end of file in '%s'\n",
- _argv[2]);
- exit(1);
- }
- if (fp2)
- if (fputc(t, fp2) == EOF)
- {
- fprintf(stderr,"ldrdf: write error\n");
- exit(1);
- }
- *p++ = t;
- }
- longtolocal (&l);
- return l;
-}
-
-int main(int argc, char **argv)
-{
- FILE *fp, *fp2;
- char *p, buf[256];
- int i;
-
- _argv = argv;
-
- if (argc < 3 || !strncmp(argv[1],"-h",2) || !strncmp(argv[1],"--h",3))
- {
- printf(usage);
- exit(1);
- }
-
- switch(argv[1][0])
- {
- case 'c': /* create library */
- fp = fopen(argv[2],"wb");
- if (! fp) {
- fprintf(stderr,"ldrdf: could not open '%s'\n",argv[2]);
- perror("ldrdf");
- exit(1);
- }
- fclose(fp);
- break;
-
- case 'a': /* add module */
- if (argc < 5) {
- fprintf(stderr,"ldrdf: required parameter missing\n");
- exit(1);
- }
- fp = fopen(argv[2],"ab");
- if (! fp)
- {
- fprintf(stderr,"ldrdf: could not open '%s'\n",argv[2]);
- perror("ldrdf");
- exit(1);
- }
-
- fp2 = fopen(argv[3],"rb");
- if (! fp)
- {
- fprintf(stderr,"ldrdf: could not open '%s'\n",argv[3]);
- perror("ldrdf");
- exit(1);
- }
-
- p = argv[4];
- do {
- if ( fputc(*p,fp) == EOF ) {
- fprintf(stderr,"ldrdf: write error\n");
- exit(1);
- }
- } while (*p++);
-
- while (! feof (fp2) ) {
- i = fgetc (fp2);
- if (i == EOF) {
- break;
- }
-
- if ( fputc(i, fp) == EOF ) {
- fprintf(stderr,"ldrdf: write error\n");
- exit(1);
- }
- }
- fclose(fp2);
- fclose(fp);
- break;
-
- case 'x':
- if (argc < 5) {
- fprintf(stderr,"ldrdf: required parameter missing\n");
- exit(1);
- }
-
- fp = fopen(argv[2],"rb");
- if (! fp)
- {
- fprintf(stderr,"ldrdf: could not open '%s'\n",argv[2]);
- perror("ldrdf");
- exit(1);
- }
-
- fp2 = NULL;
- while (! feof(fp) ) {
- /* read name */
- p = buf;
- while( ( *(p++) = (char) fgetc(fp) ) )
- if (feof(fp)) break;
-
- if (feof(fp)) break;
-
- /* check against desired name */
- if (! strcmp(buf,argv[3]) )
- {
- fp2 = fopen(argv[4],"wb");
- if (! fp2)
- {
- fprintf(stderr,"ldrdf: could not open '%s'\n", argv[4]);
- perror("ldrdf");
- exit(1);
- }
- }
- else
- fp2 = NULL;
-
- /* step over the RDOFF file, copying it if fp2 != NULL */
- copybytes(fp,fp2,6); /* magic number */
- copybytes(fp,fp2, copylong(fp,fp2)); /* header */
- copybytes(fp,fp2, copylong(fp,fp2)); /* text */
- copybytes(fp,fp2, copylong(fp,fp2)); /* data */
-
- if (fp2)
- break;
- }
- fclose(fp);
- if (fp2)
- fclose(fp2);
- else
- {
- fprintf(stderr,"ldrdf: module '%s' not found in '%s'\n",
- argv[3],argv[2]);
- exit(1);
- }
- break;
-
- default:
- fprintf(stderr,"ldrdf: command '%c' not recognised\n",
- argv[1][0]);
- exit(1);
- }
- return 0;
-}
-
diff --git a/rdoff/v1/rdfload.c b/rdoff/v1/rdfload.c
deleted file mode 100644
index b848344..0000000
--- a/rdoff/v1/rdfload.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/* rdfload.c RDOFF Object File loader library
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- *
- * Permission to use this file in your own projects is granted, as long
- * as acknowledgement is given in an appropriate manner to its authors,
- * with instructions of how to obtain a copy via ftp.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-
-#include "rdfload.h"
-#include "symtab.h"
-#include "rdoff.h"
-#include "collectn.h"
-
-extern int rdf_errno;
-
-rdfmodule * rdfload(const char *filename)
-{
- rdfmodule * f = malloc(sizeof(rdfmodule));
- long bsslength = 0;
- char * hdr;
- rdfheaderrec *r;
-
- if (f == NULL)
- {
- rdf_errno = 6; /* out of memory */
- return NULL;
- }
-
- f->symtab = symtabNew();
- if (!f->symtab)
- {
- free(f);
- rdf_errno = 6;
- return NULL;
- }
-
- /* open the file */
- if ( rdfopen( &(f->f), filename ) ) {
- free(f);
- return NULL;
- }
-
- /* read in text and data segments, and header */
-
- f->t = malloc (f->f.code_len);
- f->d = malloc (f->f.data_len); /* BSS seg allocated later */
- hdr = malloc (f->f.header_len);
-
- if (! f->t || ! f->d || !hdr) {
- rdf_errno = 6;
- rdfclose(&f->f);
- if (f->t) free(f->t);
- if (f->d) free(f->d);
- free(f);
- return NULL;
- }
-
- if ( rdfloadseg (&f->f,RDOFF_HEADER,hdr) ||
- rdfloadseg (&f->f,RDOFF_CODE,f->t) ||
- rdfloadseg (&f->f,RDOFF_DATA,f->d) )
- {
- rdfclose(&f->f);
- free(f->t);
- free(f->d);
- free(f);
- free(hdr);
- return NULL;
- }
-
- rdfclose(&f->f);
-
- /* Allocate BSS segment; step through header and count BSS records */
-
- while ( ( r = rdfgetheaderrec (&f->f) ) )
- {
- if (r->type == 5)
- bsslength += r->b.amount;
- }
-
- f->b = malloc ( bsslength );
- if (! f->b )
- {
- free(f->t);
- free(f->d);
- free(f);
- free(hdr);
- rdf_errno = 6;
- return NULL;
- }
-
- rdfheaderrewind (&f->f);
-
- f->textrel = (long)f->t;
- f->datarel = (long)f->d;
- f->bssrel = (long)f->b;
-
- return f;
-}
-
-int rdf_relocate(rdfmodule * m)
-{
- rdfheaderrec * r;
- Collection imports;
- symtabEnt e;
- long rel;
- unsigned char * seg;
-
- rdfheaderrewind ( & m->f );
- collection_init(&imports);
-
- while ( (r = rdfgetheaderrec ( & m->f ) ) )
- {
- switch (r->type)
- {
- case 1: /* Relocation record */
-
- /* calculate relocation factor */
-
- if (r->r.refseg == 0) rel = m->textrel;
- else if (r->r.refseg == 1) rel = m->datarel;
- else if (r->r.refseg == 2) rel = m->bssrel;
- else
- /* We currently do not support load-time linkage.
- This should be added some time soon... */
-
- return 1; /* return error code */
-
- if ((r->r.segment & 63) == 0) seg = m->t;
- else if ((r->r.segment & 63) == 1) seg = m->d;
- else
- return 1;
-
- /* it doesn't matter in this case that the code is non-portable,
- as the entire concept of executing a module like this is
- non-portable */
- switch(r->r.length) {
- case 1:
- seg[r->r.offset] += (char) rel;
- break;
- case 2:
- *(int16 *)(seg + r->r.offset) += (int16) rel;
- break;
- case 4:
- *(long *)(seg + r->r.offset) += rel;
- break;
- }
- break;
-
- case 3: /* export record - add to symtab */
- e.segment = r->e.segment;
- e.offset = r->e.offset +
- (e.segment == 0 ? m->textrel : /* 0 -> code */
- e.segment == 1 ? m->datarel : /* 1 -> data */
- m->bssrel) ; /* 2 -> bss */
- e.flags = 0;
- e.name = malloc(strlen(r->e.label) + 1);
- if (! e.name)
- return 1;
-
- strcpy(e.name,r->e.label);
- symtabInsert(m->symtab,&e);
- break;
- }
- }
- return 0;
-}
diff --git a/rdoff/v1/rdfload.h b/rdoff/v1/rdfload.h
deleted file mode 100644
index 5e264b9..0000000
--- a/rdoff/v1/rdfload.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* rdfload.h RDOFF Object File loader library header file
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- *
- * See the file 'rdfload.c' for special license information for this
- * file.
- */
-
-#ifndef _RDFLOAD_H
-#define _RDFLOAD_H
-
-#include "rdoff.h"
-
-typedef struct RDFModuleStruct {
- rdffile f; /* file structure */
- unsigned char * t, * d, * b; /* text, data, and bss segments */
- long textrel;
- long datarel;
- long bssrel;
- void * symtab;
-} rdfmodule;
-
-rdfmodule * rdfload(const char * filename);
-int rdf_relocate(rdfmodule * m);
-
-#endif
diff --git a/rdoff/v1/rdlib.c b/rdoff/v1/rdlib.c
deleted file mode 100644
index bc8d1e3..0000000
--- a/rdoff/v1/rdlib.c
+++ /dev/null
@@ -1,88 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "rdoff.h"
-#include "rdlib.h"
-
-int rdl_error = 0;
-
-char *rdl_errors[3] = {
- "no error","could not open file", "invalid file structure",
-};
-
-int rdl_searchlib (struct librarynode * lib,
- const char * label, rdffile * f)
-{
- char buf[257];
- int i;
- void * hdr;
- rdfheaderrec * r;
-
- rdl_error = 0;
- lib->referenced ++;
-
- if (! lib->fp)
- {
- lib->fp = fopen(lib->name,"rb");
-
- if (! lib->fp) {
- rdl_error = 1;
- return 0;
- }
- }
- else
- rewind(lib->fp);
-
- while (! feof(lib->fp) )
- {
- i = 1;
- while (fread(buf + i,1,1,lib->fp) == 1 && buf[i] && i < 257)
- i++;
- buf[0] = ':';
-
- if (feof(lib->fp)) break;
-
- if ( rdfopenhere(f,lib->fp,&lib->referenced,buf) ) {
- rdl_error = 2;
- return 0;
- }
-
- hdr = malloc(f->header_len);
- rdfloadseg(f,RDOFF_HEADER,hdr);
-
- while ((r = rdfgetheaderrec(f)))
- {
- if (r->type != 3) /* not an export */
- continue;
-
- if (! strcmp(r->e.label, label) ) /* match! */
- {
- free(hdr); /* reset to 'just open' */
- f->header_loc = NULL; /* state... */
- f->header_fp = 0;
- return 1;
- }
- }
-
- /* find start of next module... */
- i = f->data_ofs + f->data_len;
- rdfclose(f);
- fseek(lib->fp,i,SEEK_SET);
- }
-
- lib->referenced --;
- if (! lib->referenced)
- {
- fclose(lib->fp);
- lib->fp = NULL;
- }
- return 0;
-}
-
-void rdl_perror(const char *apname, const char *filename)
-{
- fprintf(stderr,"%s:%s:%s\n",apname,filename,rdl_errors[rdl_error]);
-}
-
-
-
diff --git a/rdoff/v1/rdlib.h b/rdoff/v1/rdlib.h
deleted file mode 100644
index 94592ce..0000000
--- a/rdoff/v1/rdlib.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* rdlib.h Functions for manipulating librarys of RDOFF object files */
-
-
-struct librarynode {
- char * name;
- FILE * fp; /* initialised to NULL - always check*/
- int referenced; /* & open if required. Close afterwards */
- struct librarynode * next; /* if ! referenced. */
-};
-
-
-extern int rdl_error;
-
-int rdl_searchlib (struct librarynode * lib,
- const char * label, rdffile * f);
-void rdl_perror(const char *apname, const char *filename);
-
-
diff --git a/rdoff/v1/rdoff.c b/rdoff/v1/rdoff.c
deleted file mode 100644
index 96620ec..0000000
--- a/rdoff/v1/rdoff.c
+++ /dev/null
@@ -1,397 +0,0 @@
-/* rdoff.c library of routines for manipulating rdoff files
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-
-/* TODO: The functions in this module assume they are running
- * on a little-endian machine. This should be fixed to
- * make it portable.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#include "rdoff.h"
-
-#define newstr(str) strcpy(malloc(strlen(str) + 1),str)
-#define newstrcat(s1,s2) strcat(strcpy(malloc(strlen(s1) + strlen(s2) + 1), \
- s1),s2)
-
-/* ========================================================================
- * Code for memory buffers (for delayed writing of header until we know
- * how long it is).
- * ======================================================================== */
-
-
-memorybuffer * newmembuf(){
- memorybuffer * t;
-
- t = malloc(sizeof(memorybuffer));
-
- t->length = 0;
- t->next = NULL;
- return t;
-}
-
-void membufwrite(memorybuffer *b, void *data, int bytes) {
- int16 w;
- long l;
-
- if (b->next) { /* memory buffer full - use next buffer */
- membufwrite(b->next,data,bytes);
- return;
- }
- if ((bytes < 0 && b->length - bytes > BUF_BLOCK_LEN)
- || (bytes > 0 && b->length + bytes > BUF_BLOCK_LEN)) {
-
- /* buffer full and no next allocated... allocate and initialise next
- * buffer */
-
- b->next = newmembuf();
- membufwrite(b->next,data,bytes);
- }
-
- switch(bytes) {
- case -4: /* convert to little-endian */
- l = * (long *) data ;
- b->buffer[b->length++] = l & 0xFF;
- l >>= 8 ;
- b->buffer[b->length++] = l & 0xFF;
- l >>= 8 ;
- b->buffer[b->length++] = l & 0xFF;
- l >>= 8 ;
- b->buffer[b->length++] = l & 0xFF;
- break;
-
- case -2:
- w = * (int16 *) data ;
- b->buffer[b->length++] = w & 0xFF;
- w >>= 8 ;
- b->buffer[b->length++] = w & 0xFF;
- break;
-
- default:
- while(bytes--) {
- b->buffer[b->length++] = *(* (unsigned char **) &data);
-
- (* (unsigned char **) &data)++ ;
- }
- break;
- }
-}
-
-void membufdump(memorybuffer *b,FILE *fp)
-{
- if (!b) return;
-
- fwrite (b->buffer, 1, b->length, fp);
-
- membufdump(b->next,fp);
-}
-
-int membuflength(memorybuffer *b)
-{
- if (!b) return 0;
- return b->length + membuflength(b->next);
-}
-
-void freemembuf(memorybuffer *b)
-{
- if (!b) return;
- freemembuf(b->next);
- free(b);
-}
-
-/* =========================================================================
- General purpose routines and variables used by the library functions
- ========================================================================= */
-
-long translatelong(long in) { /* translate from little endian to
- local representation */
- long r;
- unsigned char *i;
-
- i = (unsigned char *)&in;
- r = i[3];
- r = (r << 8) + i[2];
- r = (r << 8) + i[1];
- r = (r << 8) + *i;
-
- return r;
-}
-
-const char *RDOFFId = "RDOFF1"; /* written to the start of RDOFF files */
-
-const char *rdf_errors[7] = {
- "no error occurred","could not open file","invalid file format",
- "error reading file","unknown error","header not read",
- "out of memory"};
-
-int rdf_errno = 0;
-
-/* ========================================================================
- The library functions
- ======================================================================== */
-
-int rdfopen(rdffile *f, const char *name)
-{
- FILE * fp;
-
- fp = fopen(name,"rb");
- if (!fp) return rdf_errno = 1; /* error 1: file open error */
-
- return rdfopenhere(f,fp,NULL,"");
-}
-
-int rdfopenhere(rdffile *f, FILE *fp, int *refcount, char *name)
-{
- char buf[8];
- long initpos;
-
- if (translatelong(0x01020304) != 0x01020304)
- { /* fix this to be portable! */
- fputs("*** this program requires a little endian machine\n",stderr);
- fprintf(stderr,"01020304h = %08lxh\n",translatelong(0x01020304));
- exit(3);
- }
-
- f->fp = fp;
- initpos = ftell(fp);
-
- fread(buf,6,1,f->fp); /* read header */
- buf[6] = 0;
-
- if (strcmp(buf,RDOFFId)) {
- fclose(f->fp);
- return rdf_errno = 2; /* error 2: invalid file format */
- }
-
- if (fread(&f->header_len,1,4,f->fp) != 4) {
- fclose(f->fp);
- return rdf_errno = 3; /* error 3: file read error */
- }
-
- f->header_ofs = ftell(f->fp);
-
- if (fseek(f->fp,f->header_len,SEEK_CUR)) {
- fclose(f->fp);
- return rdf_errno = 2; /* seek past end of file...? */
- }
-
- if (fread(&f->code_len,1,4,f->fp) != 4) {
- fclose(f->fp);
- return rdf_errno = 3;
- }
-
- f->code_ofs = ftell(f->fp);
- if (fseek(f->fp,f->code_len,SEEK_CUR)) {
- fclose(f->fp);
- return rdf_errno = 2;
- }
-
- if (fread(&f->data_len,1,4,f->fp) != 4) {
- fclose(f->fp);
- return rdf_errno = 3;
- }
-
- f->data_ofs = ftell(f->fp);
- fseek(f->fp,initpos,SEEK_SET);
- f->header_loc = NULL;
-
- f->name = newstr(name);
- f->refcount = refcount;
- if (refcount) (*refcount)++;
- return 0;
-}
-
-int rdfclose(rdffile *f)
-{
- if (! f->refcount || ! *--f->refcount)
- fclose(f->fp);
- free(f->name);
-
- return 0;
-}
-
-void rdfperror(const char *app,const char *name)
-{
- fprintf(stderr,"%s:%s: %s\n",app,name,rdf_errors[rdf_errno]);
- if (rdf_errno == 1 || rdf_errno == 3)
- {
- perror(app);
- }
-
-}
-
-int rdfloadseg(rdffile *f,int segment,void *buffer)
-{
- long fpos;
- long slen;
-
- switch(segment) {
- case RDOFF_HEADER:
- fpos = f->header_ofs;
- slen = f->header_len;
- f->header_loc = (char *)buffer;
- f->header_fp = 0;
- break;
- case RDOFF_CODE:
- fpos = f->code_ofs;
- slen = f->code_len;
- break;
- case RDOFF_DATA:
- fpos = f->data_ofs;
- slen = f->data_len;
- break;
- default:
- fpos = 0;
- slen = 0;
- }
-
- if (fseek(f->fp,fpos,SEEK_SET))
- return rdf_errno = 4;
-
- if (fread(buffer,1,slen,f->fp) != slen)
- return rdf_errno = 3;
-
- return 0;
-}
-
-/* Macros for reading integers from header in memory */
-
-#define RI8(v) v = f->header_loc[f->header_fp++]
-#define RI16(v) { v = (f->header_loc[f->header_fp] + \
- (f->header_loc[f->header_fp+1] << 8)); \
- f->header_fp += 2; }
-
-#define RI32(v) { v = (f->header_loc[f->header_fp] + \
- (f->header_loc[f->header_fp+1] << 8) + \
- (f->header_loc[f->header_fp+2] << 16) + \
- (f->header_loc[f->header_fp+3] << 24)); \
- f->header_fp += 4; }
-
-#define RS(str,max) { for(i=0;i<max;i++){\
- RI8(str[i]); if (!str[i]) break;} str[i]=0; }
-
-rdfheaderrec *rdfgetheaderrec(rdffile *f)
-{
- static rdfheaderrec r;
- int i;
-
- if (!f->header_loc) {
- rdf_errno = 5;
- return NULL;
- }
-
- if (f->header_fp >= f->header_len) return 0;
-
- RI8(r.type);
- switch(r.type) {
- case 1: /* Relocation record */
- RI8(r.r.segment);
- RI32(r.r.offset);
- RI8(r.r.length);
- RI16(r.r.refseg);
- break;
-
- case 2: /* Imported symbol record */
- RI16(r.i.segment);
- RS(r.i.label,32);
- break;
-
- case 3: /* Exported symbol record */
- RI8(r.e.segment);
- RI32(r.e.offset);
- RS(r.e.label,32);
- break;
-
- case 4: /* DLL record */
- RS(r.d.libname,127);
- break;
-
- case 5: /* BSS reservation record */
- RI32(r.b.amount);
- break;
-
- default:
- rdf_errno = 2; /* invalid file */
- return NULL;
- }
- return &r;
-}
-
-void rdfheaderrewind(rdffile *f)
-{
- f->header_fp = 0;
-}
-
-
-rdf_headerbuf * rdfnewheader(void)
-{
- return newmembuf();
-}
-
-int rdfaddheader(rdf_headerbuf * h, rdfheaderrec * r)
-{
- switch (r->type)
- {
- case 1:
- membufwrite(h,&r->type,1);
- membufwrite(h,&r->r.segment,1);
- membufwrite(h,&r->r.offset,-4);
- membufwrite(h,&r->r.length,1);
- membufwrite(h,&r->r.refseg,-2); /* 9 bytes written */
- break;
-
- case 2: /* import */
- membufwrite(h,&r->type,1);
- membufwrite(h,&r->i.segment,-2);
- membufwrite(h,&r->i.label,strlen(r->i.label) + 1);
- break ;
-
- case 3: /* export */
- membufwrite(h,&r->type,1);
- membufwrite(h,&r->e.segment,1);
- membufwrite(h,&r->e.offset,-4);
- membufwrite(h,&r->e.label,strlen(r->e.label) + 1);
- break ;
-
- case 4: /* DLL */
- membufwrite(h,&r->type,1);
- membufwrite(h,&r->d.libname,strlen(r->d.libname) + 1);
- break ;
-
- case 5: /* BSS */
- membufwrite(h,&r->type,1);
- membufwrite(h,&r->b.amount,-4);
- break ;
-
- default:
- return (rdf_errno = 2);
- }
- return 0;
-}
-
-int rdfwriteheader(FILE * fp, rdf_headerbuf * h)
-{
- long l;
-
- fwrite (RDOFFId, 1, strlen(RDOFFId), fp) ;
-
- l = translatelong ( membuflength (h) );
- fwrite (&l, 4, 1, fp);
-
- membufdump(h, fp);
-
- return 0; /* no error handling in here... CHANGE THIS! */
-}
-
-void rdfdoneheader(rdf_headerbuf * h)
-{
- freemembuf(h);
-}
diff --git a/rdoff/v1/rdoff.h b/rdoff/v1/rdoff.h
deleted file mode 100644
index 0f74b80..0000000
--- a/rdoff/v1/rdoff.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/* rdoff.h RDOFF Object File manipulation routines header file
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-
-#ifndef _RDOFF_H
-#define _RDOFF_H "RDOFF1 support routines v0.1"
-
-typedef short int16; /* not sure if this will be required to be altered
- at all... best to typedef it just in case */
-
-/* the records that can be found in the RDOFF header */
-
-struct RelocRec {
- char type; /* must be 1 */
- char segment; /* only 0 for code, or 1 for data supported,
- but add 64 for relative refs (ie do not require
- reloc @ loadtime, only linkage) */
- long offset; /* from start of segment in which reference is loc'd */
- char length; /* 1 2 or 4 bytes */
- int16 refseg; /* segment to which reference refers to */
-};
-
-struct ImportRec {
- char type; /* must be 2 */
- int16 segment; /* segment number allocated to the label for reloc
- records - label is assumed to be at offset zero
- in this segment, so linker must fix up with offset
- of segment and of offset within segment */
- char label[33]; /* zero terminated... should be written to file until
- the zero, but not after it - max len = 32 chars */
-};
-
-struct ExportRec {
- char type; /* must be 3 */
- char segment; /* segment referred to (0/1) */
- long offset; /* offset within segment */
- char label[33]; /* zero terminated as above. max len = 32 chars */
-};
-
-struct DLLRec {
- char type; /* must be 4 */
- char libname[128]; /* name of library to link with at load time */
-};
-
-struct BSSRec {
- char type; /* must be 5 */
- long amount; /* number of bytes BSS to reserve */
-};
-
-typedef union RDFHeaderRec {
- char type; /* invariant throughout all below */
- struct RelocRec r; /* type == 1 */
- struct ImportRec i; /* type == 2 */
- struct ExportRec e; /* type == 3 */
- struct DLLRec d; /* type == 4 */
- struct BSSRec b; /* type == 5 */
-} rdfheaderrec;
-
-typedef struct RDFFileInfo {
- FILE *fp; /* file descriptor; must be open to use this struct */
- int rdoff_ver; /* should be 1; any higher => not guaranteed to work */
- long header_len;
- long code_len;
- long data_len;
- long header_ofs;
- long code_ofs;
- long data_ofs;
- char *header_loc; /* keep location of header */
- long header_fp; /* current location within header for reading */
- char *name; /* name of module in libraries */
- int *refcount; /* pointer to reference count on file, or NULL */
-} rdffile;
-
-#define BUF_BLOCK_LEN 4088 /* selected to match page size (4096)
- * on 80x86 machines for efficiency */
-typedef struct memorybuffer {
- int length;
- char buffer[BUF_BLOCK_LEN];
- struct memorybuffer *next;
-} memorybuffer;
-
-typedef memorybuffer rdf_headerbuf;
-
-/* segments used by RDOFF, understood by rdoffloadseg */
-#define RDOFF_CODE 0
-#define RDOFF_DATA 1
-#define RDOFF_HEADER -1
-/* mask for 'segment' in relocation records to find if relative relocation */
-#define RDOFF_RELATIVEMASK 64
-/* mask to find actual segment value in relocation records */
-#define RDOFF_SEGMENTMASK 63
-
-extern int rdf_errno;
-
-/* RDOFF file manipulation functions */
-int rdfopen(rdffile *f,const char *name);
-int rdfopenhere(rdffile *f, FILE *fp, int *refcount, char *name);
-int rdfclose(rdffile *f);
-int rdfloadseg(rdffile *f,int segment,void *buffer);
-rdfheaderrec *rdfgetheaderrec(rdffile *f); /* returns static storage */
-void rdfheaderrewind(rdffile *f); /* back to start of header */
-void rdfperror(const char *app,const char *name);
-
-/* functions to write a new RDOFF header to a file -
- use rdfnewheader to allocate a header, rdfaddheader to add records to it,
- rdfwriteheader to write 'RDOFF1', length of header, and the header itself
- to a file, and then rdfdoneheader to dispose of the header */
-
-rdf_headerbuf *rdfnewheader(void);
-int rdfaddheader(rdf_headerbuf *h,rdfheaderrec *r);
-int rdfwriteheader(FILE *fp,rdf_headerbuf *h);
-void rdfdoneheader(rdf_headerbuf *h);
-
-#endif /* _RDOFF_H */
diff --git a/rdoff/v1/rdoff.txt b/rdoff/v1/rdoff.txt
deleted file mode 100644
index 7ee86d6..0000000
--- a/rdoff/v1/rdoff.txt
+++ /dev/null
@@ -1,114 +0,0 @@
-The RDOFF version 1.1 Object File Format
-========================================
-
-I seem to keep writing this document... I don't know what keeps
-happening to it. Anyway, this one will hopefully stay around for a
-while.
-
-RDOFF is a relocatable object file format whose design goals were
-mainly to keep it simple, so that an RDOFF object can be loaded and
-executed by a very small piece of code (primarily so that it can be
-used by the microkernel of an operating system to store system
-modules, which can then go on to load and execute more complex object
-files, eg ELF, if so desired), yet still be able to be cope with
-everything required by the operating system; linkage of multiple
-modules together (possibly with automatic loading of new libraries
-that are referred to by the object) at load time, allowing static or
-dynamic linking as required by the application.
-
-The overall format of the file is summarised in this table:
-
-Length (bytes) Description
- 6 Contains the string 'RDOFF1' (little-endian targets),
- or 'RDOFF' followed by the single byte 0x01
- (big-endian targets).
- 4 Length of the header section
- ? Header section (see above for length)
- 4 Length of code section (.text)
- ? Code section
- 4 Length of data section (.data)
- ? Data section
-
-Segments are referred to as numbers. Imported labels are implicitly
-at offset zero from a segment; each is assigned a segment number when
-it is imported. Segments in the object file itself are numbered:
- 0 - text segemnt
- 1 - data segment
- 2 - bss segment
-
-The header consists of a sequence of records, each of which is
-preceded by a byte to represent its type.
-
-These records are one of the following types:
-
-1: Relocation Record
---------------------
-
- This record points to an address that will need either
- relocation or linkage to an external segment when the object
- is loaded or linked.
-
- Length Description
- 1 Type identifier (must be 1)
- 1 Segment number (0 or 1) plus 64 if the reference is
- relative (and thus does not require relocation with
- the base of the code, only by the difference between
- the start of this segment, and the segment referred to
- (see below)
- 4 Offset from start of segment of item requiring reloc.
- 1 Length of item (1, 2, or 4 bytes...)
- 2 Segment number to which reference is made.
-
-2: Import Symbol Record
------------------------
-
- This record defines a segment to start at the location of a
- named symbol; this symbol may need to be fetched from an
- external library.
-
- Length Description
- 1 Type identifier (must be 2)
- 2 Segment number to allocate
- ? String containing label (null terminated, max length =
- 32 chars)
-
-3: Export Symbol Record
------------------------
-
- This record defines a symbol, to which external modules can
- link using the above record type.
-
- Length Description
- 1 Type identifier (must be 3)
- 1 Segment containing symbol (0,1 or 2)
- 4 Offset of symbol within segment
- ? String containing label (null terminated, max length =
- 32 chars)
-
-4: Import Library Record
-------------------------
-
- This record tells the loader that an extra library should be
- loaded and linked to the module at either load- or run-time
- (load time is easier, run-time is good, though...)
-
- Length Description
- 1 Type identifier (must be 4)
- ? Name of library (null terminated string, max len = 128)
-
-5: Reserve BSS Bytes
---------------------
-
- This record tells the loader how much memory to reserve after
- the executable code loaded from the object file for the BSS
- segment (referred to as segment number 2).
- A loader can safely assume that there will only be one of
- these records per module, but the linker probably cannot...
- NASM will only output one, but other utilities may be written
- that do, and future versions of NASM may output more than one.
-
- Length Description
- 1 Type identifier (must be 5)
- 4 Number of bytes to reserve
-
-
diff --git a/rdoff/v1/rdx.c b/rdoff/v1/rdx.c
deleted file mode 100644
index 28ffc42..0000000
--- a/rdoff/v1/rdx.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/* rdx.c RDOFF Object File loader program
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-
-/* note: most of the actual work of this program is done by the modules
- "rdfload.c", which loads and relocates the object file, and by "rdoff.c",
- which contains general purpose routines to manipulate RDOFF object
- files. You can use these files in your own program to load RDOFF objects
- and execute the code in them in a similar way to what is shown here. */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "rdfload.h"
-#include "rdoff.h"
-#include "symtab.h"
-
-typedef int (*main_fn) (int,char**); /* Main function prototype */
-
-int main(int argc, char **argv)
-{
- rdfmodule * m;
- main_fn code;
- symtabEnt * s;
-
- if (argc < 2)
- {
- puts("usage: rdf <rdoff-executable> [params]\n");
- exit(255);
- }
-
- m = rdfload(argv[1]);
-
- if (! m)
- {
- rdfperror("rdf",argv[1]);
- exit(255);
- }
-
- rdf_relocate(m); /* in this instance, the default relocation
- values will work fine, but they may need changing
- in other cases... */
-
- s = symtabFind(m->symtab, "_main");
- if (! s)
- {
- fprintf(stderr,"rdx: could not find symbol '_main' in '%s'\n",argv[1]);
- exit(255);
- }
-
- code = (main_fn) s->offset;
-
- argv++, argc--; /* remove 'rdx' from command line */
-
- return code(argc,argv); /* execute */
-}
-
diff --git a/rdoff/v1/symtab.c b/rdoff/v1/symtab.c
deleted file mode 100644
index 3fc363e..0000000
--- a/rdoff/v1/symtab.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* symtab.c Routines to maintain and manipulate a symbol table
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "symtab.h"
-
-/* TODO: Implement a hash table, not this stupid implementation which
- is too slow to be of practical use */
-
-/* Private data types */
-
-typedef struct tagSymtab {
- symtabEnt ent;
- struct tagSymtab * next;
-} symtabList;
-
-typedef symtabList * _symtab;
-
-void *symtabNew(void)
-{
- void *p = malloc(sizeof(_symtab));
- if (p == NULL) {
- fprintf(stderr,"symtab: out of memory\n");
- exit(3);
- }
- *(_symtab *)p = NULL;
-
- return p;
-}
-
-void symtabDone(void *symtab)
-{
- /* DO SOMETHING HERE! */
-}
-
-void symtabInsert(void *symtab,symtabEnt *ent)
-{
- symtabList *l = malloc(sizeof(symtabList));
-
- if (l == NULL) {
- fprintf(stderr,"symtab: out of memory\n");
- exit(3);
- }
-
- l->ent = *ent;
- l->next = *(_symtab *)symtab;
- *(_symtab *)symtab = l;
-}
-
-symtabEnt *symtabFind(void *symtab,char *name)
-{
- symtabList *l = *(_symtab *)symtab;
-
- while (l) {
- if (!strcmp(l->ent.name,name)) {
- return &(l->ent);
- }
- l = l->next;
- }
- return NULL;
-}
-
-void symtabDump(void *symtab,FILE *of)
-{
- symtabList *l = *(_symtab *)symtab;
-
- while(l) {
- fprintf(of,"%32s %s:%08lx (%ld)\n",l->ent.name,
- l->ent.segment ? "data" : "code" ,
- l->ent.offset, l->ent.flags);
- l = l->next;
- }
-}
-
diff --git a/rdoff/v1/symtab.h b/rdoff/v1/symtab.h
deleted file mode 100644
index 5780d44..0000000
--- a/rdoff/v1/symtab.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* symtab.h Header file for symbol table manipulation routines
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
-
-typedef struct {
- char *name;
- long segment;
- long offset;
- long flags;
-} symtabEnt;
-
-void *symtabNew(void);
-void symtabDone(void *symtab);
-void symtabInsert(void *symtab,symtabEnt *ent);
-symtabEnt *symtabFind(void *symtab,char *name);
-void symtabDump(void *symtab,FILE *of);
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