--- /dev/null
+/* Update the symbol table (the .T file) in a MIPS object to
+ contain debugging information specified by the GNU compiler
+ in the form of comments (the mips assembler does not support
+ assembly access to debug information).
+ Contributed by: Michael Meissner, meissner@osf.org
+ Copyright (C) 1991 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+\f
+/* Here is a brief description of the MIPS ECOFF symbol table. The
+ MIPS symbol table has the following pieces:
+
+ Symbolic Header
+ |
+ +-- Auxiliary Symbols
+ |
+ +-- Dense number table
+ |
+ +-- Optimizer Symbols
+ |
+ +-- External Strings
+ |
+ +-- External Symbols
+ |
+ +-- Relative file descriptors
+ |
+ +-- File table
+ |
+ +-- Procedure table
+ |
+ +-- Line number table
+ |
+ +-- Local Strings
+ |
+ +-- Local Symbols
+
+ The symbolic header points to each of the other tables, and also
+ contains the number of entries. It also contains a magic number
+ and MIPS compiler version number, such as 2.0.
+
+ The auxiliary table is a series of 32 bit integers, that are
+ referenced as needed from the local symbol table. Unlike standard
+ COFF, the aux. information does not follow the symbol that uses
+ it, but rather is a separate table. In theory, this would allow
+ the MIPS compilers to collapse duplicate aux. entries, but I've not
+ noticed this happening with the 1.31 compiler suite. The different
+ types of aux. entries are:
+
+ 1) dnLow: Low bound on array dimension.
+
+ 2) dnHigh: High bound on array dimension.
+
+ 3) isym: Index to the local symbol which is the start of the
+ function for the end of function first aux. entry.
+
+ 4) width: Width of structures and bitfields.
+
+ 5) count: Count of ranges for variant part.
+
+ 6) rndx: A relative index into the symbol table. The relative
+ index field has two parts: rfd which is a pointer into the
+ relative file index table or ST_RFDESCAPE which says the next
+ aux. entry is the file number, and index: which is the pointer
+ into the local symbol within a given file table. This is for
+ things like references to types defined in another file.
+
+ 7) Type information: This is like the COFF type bits, except it
+ is 32 bits instead of 16; they still have room to add new
+ basic types; and they can handle more than 6 levels of array,
+ pointer, function, etc. Each type information field contains
+ the following structure members:
+
+ a) fBitfield: a bit that says this is a bitfield, and the
+ size in bits follows as the next aux. entry.
+
+ b) continued: a bit that says the next aux. entry is a
+ continuation of the current type information (in case
+ there are more than 6 levels of array/ptr/function).
+
+ c) bt: an integer containing the base type before adding
+ array, pointer, function, etc. qualifiers. The
+ current base types that I have documentation for are:
+
+ btNil -- undefined
+ btAdr -- address - integer same size as ptr
+ btChar -- character
+ btUChar -- unsigned character
+ btShort -- short
+ btUShort -- unsigned short
+ btInt -- int
+ btUInt -- unsigned int
+ btLong -- long
+ btULong -- unsigned long
+ btFloat -- float (real)
+ btDouble -- Double (real)
+ btStruct -- Structure (Record)
+ btUnion -- Union (variant)
+ btEnum -- Enumerated
+ btTypedef -- defined via a typedef isymRef
+ btRange -- subrange of int
+ btSet -- pascal sets
+ btComplex -- fortran complex
+ btDComplex -- fortran double complex
+ btIndirect -- forward or unnamed typedef
+ btFixedDec -- Fixed Decimal
+ btFloatDec -- Float Decimal
+ btString -- Varying Length Character String
+ btBit -- Aligned Bit String
+ btPicture -- Picture
+ btVoid -- Void (MIPS cc revision >= 2.00)
+
+ d) tq0 - tq5: type qualifier fields as needed. The
+ current type qualifier fields I have documentation for
+ are:
+
+ tqNil -- no more qualifiers
+ tqPtr -- pointer
+ tqProc -- procedure
+ tqArray -- array
+ tqFar -- 8086 far pointers
+ tqVol -- volatile
+
+
+ The dense number table is used in the front ends, and disappears by
+ the time the .o is created.
+
+ With the 1.31 compiler suite, the optimization symbols don't seem
+ to be used as far as I can tell.
+
+ The linker is the first entity that creates the relative file
+ descriptor table, and I believe it is used so that the individual
+ file table pointers don't have to be rewritten when the objects are
+ merged together into the program file.
+
+ Unlike COFF, the basic symbol & string tables are split into
+ external and local symbols/strings. The relocation information
+ only goes off of the external symbol table, and the debug
+ information only goes off of the internal symbol table. The
+ external symbols can have links to an appropriate file index and
+ symbol within the file to give it the appropriate type information.
+ Because of this, the external symbols are actually larger than the
+ internal symbols (to contain the link information), and contain the
+ local symbol structure as a member, though this member is not the
+ first member of the external symbol structure (!). I suspect this
+ split is to make strip easier to deal with.
+
+ Each file table has offsets for where the line numbers, local
+ strings, local symbols, and procedure table starts from within the
+ global tables, and the indexs are reset to 0 for each of those
+ tables for the file.
+
+ The procedure table contains the binary equivalents of the .ent
+ (start of the function address), .frame (what register is the
+ virtual frame pointer, constant offset from the register to obtain
+ the VFP, and what register holds the return address), .mask/.fmask
+ (bitmask of saved registers, and where the first register is stored
+ relative to the VFP) assembler directives. It also contains the
+ low and high bounds of the line numbers if debugging is turned on.
+
+ The line number table is a compressed form of the normal COFF line
+ table. Each line number entry is either 1 or 3 bytes long, and
+ contains a signed delta from the previous line, and an unsigned
+ count of the number of instructions this statement takes.
+
+ The local symbol table contains the following fields:
+
+ 1) iss: index to the local string table giving the name of the
+ symbol.
+
+ 2) value: value of the symbol (address, register number, etc.).
+
+ 3) st: symbol type. The current symbol types are:
+
+ stNil -- Nuthin' special
+ stGlobal -- external symbol
+ stStatic -- static
+ stParam -- procedure argument
+ stLocal -- local variable
+ stLabel -- label
+ stProc -- External Procedure
+ stBlock -- beginnning of block
+ stEnd -- end (of anything)
+ stMember -- member (of anything)
+ stTypedef -- type definition
+ stFile -- file name
+ stRegReloc -- register relocation
+ stForward -- forwarding address
+ stStaticProc -- Static procedure
+ stConstant -- const
+
+ 4) sc: storage class. The current storage classes are:
+
+ scText -- text symbol
+ scData -- initialized data symbol
+ scBss -- un-initialized data symbol
+ scRegister -- value of symbol is register number
+ scAbs -- value of symbol is absolute
+ scUndefined -- who knows?
+ scCdbLocal -- variable's value is IN se->va.??
+ scBits -- this is a bit field
+ scCdbSystem -- value is IN debugger's address space
+ scRegImage -- register value saved on stack
+ scInfo -- symbol contains debugger information
+ scUserStruct -- addr in struct user for current process
+ scSData -- load time only small data
+ scSBss -- load time only small common
+ scRData -- load time only read only data
+ scVar -- Var parameter (fortranpascal)
+ scCommon -- common variable
+ scSCommon -- small common
+ scVarRegister -- Var parameter in a register
+ scVariant -- Variant record
+ scSUndefined -- small undefined(external) data
+ scInit -- .init section symbol
+
+ 5) index: pointer to a local symbol or aux. entry.
+
+
+
+ For the following program:
+
+ #include <stdio.h>
+
+ main(){
+ printf("Hello World!\n");
+ return 0;
+ }
+
+ Mips-tdump produces the following information:
+
+ Global file header:
+ magic number 0x162
+ # sections 2
+ timestamp 645311799, Wed Jun 13 17:16:39 1990
+ symbolic header offset 284
+ symbolic header size 96
+ optional header 56
+ flags 0x0
+
+ Symbolic header, magic number = 0x7009, vstamp = 1.31:
+
+ Info Offset Number Bytes
+ ==== ====== ====== =====
+
+ Line numbers 380 4 4 [13]
+ Dense numbers 0 0 0
+ Procedures Tables 384 1 52
+ Local Symbols 436 16 192
+ Optimization Symbols 0 0 0
+ Auxilary Symbols 628 39 156
+ Local Strings 784 80 80
+ External Strings 864 144 144
+ File Tables 1008 2 144
+ Relative Files 0 0 0
+ External Symbols 1152 20 320
+
+ File #0, "hello2.c"
+
+ Name index = 1 Readin = No
+ Merge = No Endian = LITTLE
+ Debug level = G2 Language = C
+ Adr = 0x00000000
+
+ Info Start Number Size Offset
+ ==== ===== ====== ==== ======
+ Local strings 0 15 15 784
+ Local symbols 0 6 72 436
+ Line numbers 0 13 13 380
+ Optimization symbols 0 0 0 0
+ Procedures 0 1 52 384
+ Auxiliary symbols 0 14 56 628
+ Relative Files 0 0 0 0
+
+ There are 6 local symbols, starting at 436
+
+ Symbol# 0: "hello2.c"
+ End+1 symbol = 6
+ String index = 1
+ Storage class = Text Index = 6
+ Symbol type = File Value = 0
+
+ Symbol# 1: "main"
+ End+1 symbol = 5
+ Type = int
+ String index = 10
+ Storage class = Text Index = 12
+ Symbol type = Proc Value = 0
+
+ Symbol# 2: ""
+ End+1 symbol = 4
+ String index = 0
+ Storage class = Text Index = 4
+ Symbol type = Block Value = 8
+
+ Symbol# 3: ""
+ First symbol = 2
+ String index = 0
+ Storage class = Text Index = 2
+ Symbol type = End Value = 28
+
+ Symbol# 4: "main"
+ First symbol = 1
+ String index = 10
+ Storage class = Text Index = 1
+ Symbol type = End Value = 52
+
+ Symbol# 5: "hello2.c"
+ First symbol = 0
+ String index = 1
+ Storage class = Text Index = 0
+ Symbol type = End Value = 0
+
+ There are 14 auxiliary table entries, starting at 628.
+
+ * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
+ * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
+ * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
+ * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
+ * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
+ * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
+ * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
+ * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
+ * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
+ * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
+ * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
+ #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
+ #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
+
+ There are 1 procedure descriptor entries, starting at 0.
+
+ Procedure descriptor 0:
+ Name index = 10 Name = "main"
+ .mask 0x80000000,-4 .fmask 0x00000000,0
+ .frame $29,24,$31
+ Opt. start = -1 Symbols start = 1
+ First line # = 3 Last line # = 6
+ Line Offset = 0 Address = 0x00000000
+
+ There are 4 bytes holding line numbers, starting at 380.
+ Line 3, delta 0, count 2
+ Line 4, delta 1, count 3
+ Line 5, delta 1, count 2
+ Line 6, delta 1, count 6
+
+ File #1, "/usr/include/stdio.h"
+
+ Name index = 1 Readin = No
+ Merge = Yes Endian = LITTLE
+ Debug level = G2 Language = C
+ Adr = 0x00000000
+
+ Info Start Number Size Offset
+ ==== ===== ====== ==== ======
+ Local strings 15 65 65 799
+ Local symbols 6 10 120 508
+ Line numbers 0 0 0 380
+ Optimization symbols 0 0 0 0
+ Procedures 1 0 0 436
+ Auxiliary symbols 14 25 100 684
+ Relative Files 0 0 0 0
+
+ There are 10 local symbols, starting at 442
+
+ Symbol# 0: "/usr/include/stdio.h"
+ End+1 symbol = 10
+ String index = 1
+ Storage class = Text Index = 10
+ Symbol type = File Value = 0
+
+ Symbol# 1: "_iobuf"
+ End+1 symbol = 9
+ String index = 22
+ Storage class = Info Index = 9
+ Symbol type = Block Value = 20
+
+ Symbol# 2: "_cnt"
+ Type = int
+ String index = 29
+ Storage class = Info Index = 4
+ Symbol type = Member Value = 0
+
+ Symbol# 3: "_ptr"
+ Type = ptr to char
+ String index = 34
+ Storage class = Info Index = 15
+ Symbol type = Member Value = 32
+
+ Symbol# 4: "_base"
+ Type = ptr to char
+ String index = 39
+ Storage class = Info Index = 16
+ Symbol type = Member Value = 64
+
+ Symbol# 5: "_bufsiz"
+ Type = int
+ String index = 45
+ Storage class = Info Index = 4
+ Symbol type = Member Value = 96
+
+ Symbol# 6: "_flag"
+ Type = short
+ String index = 53
+ Storage class = Info Index = 3
+ Symbol type = Member Value = 128
+
+ Symbol# 7: "_file"
+ Type = char
+ String index = 59
+ Storage class = Info Index = 2
+ Symbol type = Member Value = 144
+
+ Symbol# 8: ""
+ First symbol = 1
+ String index = 0
+ Storage class = Info Index = 1
+ Symbol type = End Value = 0
+
+ Symbol# 9: "/usr/include/stdio.h"
+ First symbol = 0
+ String index = 1
+ Storage class = Text Index = 0
+ Symbol type = End Value = 0
+
+ There are 25 auxiliary table entries, starting at 642.
+
+ * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
+ #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
+ #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
+ * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
+ * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
+ * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
+ * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
+ * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
+ * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
+ * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
+ * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+ * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
+
+ There are 0 procedure descriptor entries, starting at 1.
+
+ There are 20 external symbols, starting at 1152
+
+ Symbol# 0: "_iob"
+ Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
+ String index = 0 Ifd = 1
+ Storage class = Nil Index = 17
+ Symbol type = Global Value = 60
+
+ Symbol# 1: "fopen"
+ String index = 5 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 2: "fdopen"
+ String index = 11 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 3: "freopen"
+ String index = 18 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 4: "popen"
+ String index = 26 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 5: "tmpfile"
+ String index = 32 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 6: "ftell"
+ String index = 40 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 7: "rewind"
+ String index = 46 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 8: "setbuf"
+ String index = 53 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 9: "setbuffer"
+ String index = 60 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 10: "setlinebuf"
+ String index = 70 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 11: "fgets"
+ String index = 81 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 12: "gets"
+ String index = 87 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 13: "ctermid"
+ String index = 92 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 14: "cuserid"
+ String index = 100 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 15: "tempnam"
+ String index = 108 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 16: "tmpnam"
+ String index = 116 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 17: "sprintf"
+ String index = 123 Ifd = 1
+ Storage class = Nil Index = 1048575
+ Symbol type = Proc Value = 0
+
+ Symbol# 18: "main"
+ Type = int
+ String index = 131 Ifd = 0
+ Storage class = Text Index = 1
+ Symbol type = Proc Value = 0
+
+ Symbol# 19: "printf"
+ String index = 136 Ifd = 0
+ Storage class = Undefined Index = 1048575
+ Symbol type = Proc Value = 0
+
+ The following auxiliary table entries were unused:
+
+ #0 0 0x00000000 void
+ #2 8 0x00000008 char
+ #3 16 0x00000010 short
+ #4 24 0x00000018 int
+ #5 32 0x00000020 long
+ #6 40 0x00000028 float
+ #7 44 0x0000002c double
+ #8 12 0x0000000c unsigned char
+ #9 20 0x00000014 unsigned short
+ #10 28 0x0000001c unsigned int
+ #11 36 0x00000024 unsigned long
+ #14 0 0x00000000 void
+ #15 24 0x00000018 int
+ #19 32 0x00000020 long
+ #20 40 0x00000028 float
+ #21 44 0x0000002c double
+ #22 12 0x0000000c unsigned char
+ #23 20 0x00000014 unsigned short
+ #24 28 0x0000001c unsigned int
+ #25 36 0x00000024 unsigned long
+ #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
+
+*/
+\f
+
+#include <stdio.h>
+#include "gvarargs.h"
+#include "config.h"
+
+#ifndef __SABER__
+#define saber_stop()
+#endif
+
+#ifndef __LINE__
+#define __LINE__ 0
+#endif
+
+#ifdef __STDC__
+typedef void *PTR_T;
+typedef const void *CPTR_T;
+#define __proto(x) x
+#else
+
+#ifdef _STDIO_H_ /* Ultrix 4.0 */
+typedef void *PTR_T;
+typedef void *CPTR_T;
+
+#else
+typedef char *PTR_T; /* Ultrix 3.1 */
+typedef char *CPTR_T;
+#endif
+
+#define __proto(x) ()
+#define const
+#endif
+
+/* Do to size_t being defined in sys/types.h and different
+ in stddef.h, we have to do this by hand..... Note, these
+ types are correct for MIPS based systems, and may not be
+ correct for other systems. Ultrix 4.0 and Silicon Graphics
+ have this fixed, but since the following is correct, and
+ the fact that including stddef.h gets you GCC's version
+ instead of the standard one it's not worth it to fix it. */
+
+#define Size_t unsigned int
+#define Ptrdiff_t int
+
+/* The following might be called from obstack or malloc,
+ so they can't be static. */
+
+extern void pfatal_with_name
+ __proto((char *));
+extern void fancy_abort __proto((void));
+extern void botch __proto((const char *));
+extern PTR_T xmalloc __proto((Size_t));
+extern PTR_T xcalloc __proto((Size_t, Size_t));
+extern PTR_T xrealloc __proto((PTR_T, Size_t));
+extern void xfree __proto((PTR_T));
+
+extern PTR_T malloc __proto((Size_t));
+extern PTR_T calloc __proto((Size_t, Size_t));
+extern PTR_T realloc __proto((PTR_T, Size_t));
+extern void free __proto((PTR_T));
+
+extern void fatal(); /* can't use prototypes here */
+extern void error();
+
+\f
+#ifndef MIPS_DEBUGGING_INFO
+
+static int line_number;
+static int cur_line_start;
+static int debug;
+static int had_errors;
+static char *progname;
+static char *input_name;
+
+int
+main ()
+{
+ fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
+ exit (1);
+}
+
+#else /* MIPS_DEBUGGING defined */
+\f
+
+#include <sys/types.h>
+#include <a.out.h>
+#include <string.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <signal.h>
+#include <sys/stat.h>
+
+#ifndef errno
+extern int errno; /* MIPS errno.h doesn't declare this */
+#endif
+
+#ifndef MALLOC_CHECK
+#ifdef __SABER__
+#define MALLOC_CHECK
+#endif
+#endif
+
+#define IS_ASM_IDENT(ch) \
+ (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
+
+\f
+/* Redefination of of storage classes as an enumeration for better
+ debugging. */
+
+typedef enum sc {
+ sc_Nil = scNil, /* no storage class */
+ sc_Text = scText, /* text symbol */
+ sc_Data = scData, /* initialized data symbol */
+ sc_Bss = scBss, /* un-initialized data symbol */
+ sc_Register = scRegister, /* value of symbol is register number */
+ sc_Abs = scAbs, /* value of symbol is absolute */
+ sc_Undefined = scUndefined, /* who knows? */
+ sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
+ sc_Bits = scBits, /* this is a bit field */
+ sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
+ sc_RegImage = scRegImage, /* register value saved on stack */
+ sc_Info = scInfo, /* symbol contains debugger information */
+ sc_UserStruct = scUserStruct, /* addr in struct user for current process */
+ sc_SData = scSData, /* load time only small data */
+ sc_SBss = scSBss, /* load time only small common */
+ sc_RData = scRData, /* load time only read only data */
+ sc_Var = scVar, /* Var parameter (fortran,pascal) */
+ sc_Common = scCommon, /* common variable */
+ sc_SCommon = scSCommon, /* small common */
+ sc_VarRegister = scVarRegister, /* Var parameter in a register */
+ sc_Variant = scVariant, /* Variant record */
+ sc_SUndefined = scSUndefined, /* small undefined(external) data */
+ sc_Init = scInit, /* .init section symbol */
+ sc_Max = scMax /* Max storage class+1 */
+} sc_t;
+
+/* Redefinition of symbol type. */
+
+typedef enum st {
+ st_Nil = stNil, /* Nuthin' special */
+ st_Global = stGlobal, /* external symbol */
+ st_Static = stStatic, /* static */
+ st_Param = stParam, /* procedure argument */
+ st_Local = stLocal, /* local variable */
+ st_Label = stLabel, /* label */
+ st_Proc = stProc, /* " " Procedure */
+ st_Block = stBlock, /* beginnning of block */
+ st_End = stEnd, /* end (of anything) */
+ st_Member = stMember, /* member (of anything - struct/union/enum */
+ st_Typedef = stTypedef, /* type definition */
+ st_File = stFile, /* file name */
+ st_RegReloc = stRegReloc, /* register relocation */
+ st_Forward = stForward, /* forwarding address */
+ st_StaticProc = stStaticProc, /* load time only static procs */
+ st_Constant = stConstant, /* const */
+ st_Str = stStr, /* string */
+ st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
+ st_Expr = stExpr, /* 2+2 vs. 4 */
+ st_Type = stType, /* post-coersion SER */
+ st_Max = stMax /* max type+1 */
+} st_t;
+
+/* Redefinition of type qualifiers. */
+
+typedef enum tq {
+ tq_Nil = tqNil, /* bt is what you see */
+ tq_Ptr = tqPtr, /* pointer */
+ tq_Proc = tqProc, /* procedure */
+ tq_Array = tqArray, /* duh */
+ tq_Far = tqFar, /* longer addressing - 8086/8 land */
+ tq_Vol = tqVol, /* volatile */
+ tq_Max = tqMax /* Max type qualifier+1 */
+} tq_t;
+
+/* Redefinition of basic types. */
+
+typedef enum bt {
+ bt_Nil = btNil, /* undefined */
+ bt_Adr = btAdr, /* address - integer same size as pointer */
+ bt_Char = btChar, /* character */
+ bt_UChar = btUChar, /* unsigned character */
+ bt_Short = btShort, /* short */
+ bt_UShort = btUShort, /* unsigned short */
+ bt_Int = btInt, /* int */
+ bt_UInt = btUInt, /* unsigned int */
+ bt_Long = btLong, /* long */
+ bt_ULong = btULong, /* unsigned long */
+ bt_Float = btFloat, /* float (real) */
+ bt_Double = btDouble, /* Double (real) */
+ bt_Struct = btStruct, /* Structure (Record) */
+ bt_Union = btUnion, /* Union (variant) */
+ bt_Enum = btEnum, /* Enumerated */
+ bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
+ bt_Range = btRange, /* subrange of int */
+ bt_Set = btSet, /* pascal sets */
+ bt_Complex = btComplex, /* fortran complex */
+ bt_DComplex = btDComplex, /* fortran double complex */
+ bt_Indirect = btIndirect, /* forward or unnamed typedef */
+ bt_FixedDec = btFixedDec, /* Fixed Decimal */
+ bt_FloatDec = btFloatDec, /* Float Decimal */
+ bt_String = btString, /* Varying Length Character String */
+ bt_Bit = btBit, /* Aligned Bit String */
+ bt_Picture = btPicture, /* Picture */
+
+#ifdef btVoid
+ bt_Void = btVoid, /* Void */
+#else
+#define bt_Void bt_Nil
+#endif
+
+ bt_Max = btMax /* Max basic type+1 */
+} bt_t;
+
+\f
+
+/* Basic COFF storage classes. */
+enum coff_storage {
+ C_EFCN = -1,
+ C_NULL = 0,
+ C_AUTO = 1,
+ C_EXT = 2,
+ C_STAT = 3,
+ C_REG = 4,
+ C_EXTDEF = 5,
+ C_LABEL = 6,
+ C_ULABEL = 7,
+ C_MOS = 8,
+ C_ARG = 9,
+ C_STRTAG = 10,
+ C_MOU = 11,
+ C_UNTAG = 12,
+ C_TPDEF = 13,
+ C_USTATIC = 14,
+ C_ENTAG = 15,
+ C_MOE = 16,
+ C_REGPARM = 17,
+ C_FIELD = 18,
+ C_BLOCK = 100,
+ C_FCN = 101,
+ C_EOS = 102,
+ C_FILE = 103,
+ C_LINE = 104,
+ C_ALIAS = 105,
+ C_HIDDEN = 106,
+ C_MAX = 107
+} coff_storage_t;
+
+/* Regular COFF fundamental type. */
+typedef enum coff_type {
+ T_NULL = 0,
+ T_ARG = 1,
+ T_CHAR = 2,
+ T_SHORT = 3,
+ T_INT = 4,
+ T_LONG = 5,
+ T_FLOAT = 6,
+ T_DOUBLE = 7,
+ T_STRUCT = 8,
+ T_UNION = 9,
+ T_ENUM = 10,
+ T_MOE = 11,
+ T_UCHAR = 12,
+ T_USHORT = 13,
+ T_UINT = 14,
+ T_ULONG = 15,
+ T_MAX = 16
+} coff_type_t;
+
+/* Regular COFF derived types. */
+typedef enum coff_dt {
+ DT_NON = 0,
+ DT_PTR = 1,
+ DT_FCN = 2,
+ DT_ARY = 3,
+ DT_MAX = 4
+} coff_dt_t;
+
+#define N_BTMASK 017 /* bitmask to isolate basic type */
+#define N_TMASK 003 /* bitmask to isolate derived type */
+#define N_BT_SHIFT 4 /* # bits to shift past basic type */
+#define N_TQ_SHIFT 2 /* # bits to shift derived types */
+#define N_TQ 6 /* # of type qualifiers */
+
+/* States for whether to hash type or not. */
+typedef enum hash_state {
+ hash_no = 0, /* don't hash type */
+ hash_yes = 1, /* ok to hash type, or use previous hash */
+ hash_record = 2 /* ok to record hash, but don't use prev. */
+} hash_state_t;
+
+\f
+#define WORD_ALIGN(x) (((x) + 3) & ~3)
+#define DWORD_ALIGN(x) (((x) + 7) & ~7)
+
+
+/* Structures to provide n-number of virtual arrays, each of which can
+ grow linearly, and which are written in the object file as sequential
+ pages. On systems with a BSD malloc that define USE_MALLOC, the
+ MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
+ adds it's overhead, and rounds up to the next power of 2. Pages are
+ linked together via a linked list.
+
+ If PAGE_SIZE is > 4096, the string length in the shash_t structure
+ can't be represented (assuming there are strings > 4096 bytes). */
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096 /* size of varray pages */
+#endif
+
+#define PAGE_USIZE ((Size_t)PAGE_SIZE)
+
+
+#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
+#ifndef USE_MALLOC /* in one memory request */
+#define MAX_CLUSTER_PAGES 64
+#else
+#define MAX_CLUSTER_PAGES 63
+#endif
+#endif
+
+
+/* Linked list connecting separate page allocations. */
+typedef struct vlinks {
+ struct vlinks *prev; /* previous set of pages */
+ struct vlinks *next; /* next set of pages */
+ union page *datum; /* start of page */
+ unsigned long start_index; /* starting index # of page */
+} vlinks_t;
+
+
+/* Virtual array header. */
+typedef struct varray {
+ vlinks_t *first; /* first page link */
+ vlinks_t *last; /* last page link */
+ unsigned long num_allocated; /* # objects allocated */
+ unsigned short object_size; /* size in bytes of each object */
+ unsigned short objects_per_page; /* # objects that can fit on a page */
+ unsigned short objects_last_page; /* # objects allocated on last page */
+} varray_t;
+
+#ifndef MALLOC_CHECK
+#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
+#else
+#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
+#endif
+
+#define INIT_VARRAY(type) { /* macro to initialize a varray */ \
+ (vlinks_t *)0, /* first */ \
+ (vlinks_t *)0, /* last */ \
+ 0, /* num_allocated */ \
+ sizeof (type), /* object_size */ \
+ OBJECTS_PER_PAGE (type), /* objects_per_page */ \
+ OBJECTS_PER_PAGE (type), /* objects_last_page */ \
+}
+
+/* Master type for indexes within the symbol table. */
+typedef unsigned long symint_t;
+
+
+/* Linked list support for nested scopes (file, block, structure, etc.). */
+typedef struct scope {
+ struct scope *prev; /* previous scope level */
+ SYMR *lsym; /* pointer to local symbol node */
+ symint_t lnumber; /* lsym index */
+ st_t type; /* type of the node */
+} scope_t;
+
+
+/* Forward reference list for tags referenced, but not yet defined. */
+typedef struct forward {
+ struct forward *next; /* next forward reference */
+ AUXU *ifd_ptr; /* pointer to store file index */
+ AUXU *index_ptr; /* pointer to store symbol index */
+ AUXU *type_ptr; /* pointer to munge type info */
+} forward_t;
+
+
+/* Linked list support for tags. The first tag in the list is always
+ the current tag for that block. */
+typedef struct tag {
+ struct shash *hash_ptr; /* pointer to the hash table head */
+ struct tag *same_name; /* tag with same name in outer scope */
+ struct tag *same_block; /* next tag defined in the same block. */
+ struct forward *forward_ref; /* list of forward references */
+ bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
+ symint_t ifd; /* file # tag defined in */
+ symint_t index; /* index within file's local symbols */
+} tag_t;
+
+/* Head of a block's linked list of tags. */
+typedef struct thead {
+ struct thead *prev; /* previous block */
+ struct tag *first_tag; /* first tag in block defined */
+} thead_t;
+
+
+/* String hash table support. The size of the hash table must fit
+ within a page. */
+
+
+#ifndef SHASH_SIZE
+#define SHASH_SIZE 1009
+#endif
+
+#define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
+
+typedef struct shash {
+ struct shash *next; /* next hash value */
+ char *string; /* string we are hashing */
+ symint_t len; /* string length */
+ symint_t index; /* index within string table */
+ EXTR *esym_ptr; /* global symbol pointer */
+ SYMR *sym_ptr; /* local symbol pointer */
+ tag_t *tag_ptr; /* tag pointer */
+ PDR *proc_ptr; /* procedure descriptor pointer */
+} shash_t;
+
+
+/* Type hash table support. The size of the hash table must fit
+ within a page with the other extended file descriptor information.
+ Because unique types which are hashed are fewer in number than
+ strings, we use a smaller hash value. */
+
+#ifndef THASH_SIZE
+#define THASH_SIZE 113
+#endif
+
+typedef struct thash {
+ struct thash *next; /* next hash value */
+ AUXU type; /* type we are hashing */
+ symint_t index; /* index within string table */
+} thash_t;
+
+
+/* Union of various small structures that are allocated and freed
+ from the same heap. */
+
+typedef union word8 {
+ union word8 *prev; /* previous word8 structure */
+ scope_t s; /* scope structure */
+ vlinks_t v; /* varray linked list */
+ shash_t sh; /* string hash linked list */
+ thash_t th; /* type hash linked list */
+ tag_t t; /* tag structure */
+ forward_t f; /* forward tag references */
+ thead_t thead; /* thead strcture */
+ long words[8]; /* words to zero out when allocating */
+} word8_t;
+
+
+/* Extended file descriptor that contains all of the support necessary
+ to add things to each file separately. */
+typedef struct efdr {
+ FDR fdr; /* File header to be written out */
+ FDR *orig_fdr; /* original file header */
+ char *name; /* filename */
+ int name_len; /* length of the filename */
+ symint_t void_type; /* aux. pointer to 'void' type */
+ symint_t int_type; /* aux. pointer to 'int' type */
+ scope_t *cur_scope; /* current nested scopes */
+ symint_t file_index; /* current file number */
+ int nested_scopes; /* # nested scopes */
+ varray_t strings; /* local strings */
+ varray_t symbols; /* local symbols */
+ varray_t procs; /* procedures */
+ varray_t aux_syms; /* auxiliary symbols */
+
+ struct efdr *next_file; /* next file descriptor */
+
+ /* string/type hash tables */
+ shash_t **shash_head; /* string hash table */
+ thash_t *thash_head[THASH_SIZE];
+} efdr_t;
+
+/* Pre-initialized extended file structure. */
+static efdr_t init_file =
+{
+ { /* FDR structure */
+ 0, /* adr: memory address of beginning of file */
+ 0, /* rss: file name (of source, if known) */
+ 0, /* issBase: file's string space */
+ 0, /* cbSs: number of bytes in the ss */
+ 0, /* isymBase: beginning of symbols */
+ 0, /* csym: count file's of symbols */
+ 0, /* ilineBase: file's line symbols */
+ 0, /* cline: count of file's line symbols */
+ 0, /* ioptBase: file's optimization entries */
+ 0, /* copt: count of file's optimization entries */
+ 0, /* ipdFirst: start of procedures for this file */
+ 0, /* cpd: count of procedures for this file */
+ 0, /* iauxBase: file's auxiliary entries */
+ 0, /* caux: count of file's auxiliary entries */
+ 0, /* rfdBase: index into the file indirect table */
+ 0, /* crfd: count file indirect entries */
+ langC, /* lang: language for this file */
+ 1, /* fMerge: whether this file can be merged */
+ 0, /* fReadin: true if read in (not just created) */
+#ifdef BYTES_BIG_ENDIAN
+ 1, /* fBigendian: if 1, compiled on big endian machine */
+#else
+ 0, /* fBigendian: if 1, compiled on big endian machine */
+#endif
+ GLEVEL_2, /* glevel: level this file was compiled with */
+ 0, /* reserved: reserved for future use */
+ 0, /* cbLineOffset: byte offset from header for this file ln's */
+ 0, /* cbLine: size of lines for this file */
+ },
+
+ (FDR *)0, /* orig_fdr: original file header pointer */
+ (char *)0, /* name: pointer to filename */
+ 0, /* name_len: length of filename */
+ 0, /* void_type: ptr to aux node for void type */
+ 0, /* int_type: ptr to aux node for int type */
+ (scope_t *)0, /* cur_scope: current scope being processed */
+ 0, /* file_index: current file # */
+ 0, /* nested_scopes: # nested scopes */
+ INIT_VARRAY (char), /* strings: local string varray */
+ INIT_VARRAY (SYMR), /* symbols: local symbols varray */
+ INIT_VARRAY (PDR), /* procs: procedure varray */
+ INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
+
+ (struct efdr *)0, /* next_file: next file structure */
+
+ (shash_t **)0, /* shash_head: string hash table */
+ { 0 }, /* thash_head: type hash table */
+};
+
+
+static efdr_t *first_file; /* first file descriptor */
+static efdr_t *last_file; /* last file descriptor */
+
+
+/* Union of various things that are held in pages. */
+typedef union page {
+ char byte [ PAGE_SIZE ];
+ unsigned char ubyte[ PAGE_SIZE ];
+ efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
+ FDR ofile[ PAGE_SIZE / sizeof (FDR) ];
+ PDR proc [ PAGE_SIZE / sizeof (PDR) ];
+ SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
+ EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
+ AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
+ DNR dense[ PAGE_SIZE / sizeof (DNR) ];
+ word8_t word8[ PAGE_SIZE / sizeof (word8_t) ];
+} page_t;
+
+
+/* Type information collected together. */
+typedef struct type_info {
+ bt_t basic_type; /* basic type */
+ coff_type_t orig_type; /* original COFF-based type */
+ int num_tq; /* # type qualifiers */
+ int num_dims; /* # dimensions */
+ int num_sizes; /* # sizes */
+ int extra_sizes; /* # extra sizes not tied with dims */
+ tag_t * tag_ptr; /* tag pointer */
+ int bitfield; /* symbol is a bitfield */
+ int unknown_tag; /* this is an unknown tag */
+ tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
+ symint_t dimensions [N_TQ]; /* dimensions for each array */
+ symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
+ struct/union/enum + bitfield size */
+} type_info_t;
+
+/* Pre-initialized type_info struct. */
+static type_info_t type_info_init = {
+ bt_Nil, /* basic type */
+ T_NULL, /* original COFF-based type */
+ 0, /* # type qualifiers */
+ 0, /* # dimensions */
+ 0, /* # sizes */
+ 0, /* sizes not tied with dims */
+ NULL, /* ptr to tag */
+ 0, /* bitfield */
+ 0, /* unknown tag */
+ { /* type qualifiers */
+ tq_Nil,
+ tq_Nil,
+ tq_Nil,
+ tq_Nil,
+ tq_Nil,
+ tq_Nil,
+ },
+ { /* dimensions */
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0
+ },
+ { /* sizes */
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ },
+};
+
+
+/* Global virtual arrays & hash table for external strings as well as
+ for the tags table and global tables for file descriptors, and
+ dense numbers. */
+
+static varray_t file_desc = INIT_VARRAY (efdr_t);
+static varray_t dense_num = INIT_VARRAY (DNR);
+static varray_t tag_strings = INIT_VARRAY (char);
+static varray_t ext_strings = INIT_VARRAY (char);
+static varray_t ext_symbols = INIT_VARRAY (EXTR);
+
+static shash_t *orig_str_hash[SHASH_SIZE];
+static shash_t *ext_str_hash [SHASH_SIZE];
+static shash_t *tag_hash [SHASH_SIZE];
+
+/* Static types for int and void. Also, remember the last function's
+ type (which is set up when we encounter the declaration for the
+ function, and used when the end block for the function is emitted. */
+
+static type_info_t int_type_info;
+static type_info_t void_type_info;
+static type_info_t last_func_type_info;
+static EXTR *last_func_eptr;
+
+
+/* Convert COFF basic type to ECOFF basic type. The T_NULL type
+ really should use bt_Void, but this causes the current ecoff GDB to
+ issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
+ 2.0) doesn't understand it, even though the compiler generates it.
+ Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
+ suite, but for now go with what works. */
+
+static bt_t map_coff_types[ (int)T_MAX ] = {
+ bt_Nil, /* T_NULL */
+ bt_Nil, /* T_ARG */
+ bt_Char, /* T_CHAR */
+ bt_Short, /* T_SHORT */
+ bt_Int, /* T_INT */
+ bt_Long, /* T_LONG */
+ bt_Float, /* T_FLOAT */
+ bt_Double, /* T_DOUBLE */
+ bt_Struct, /* T_STRUCT */
+ bt_Union, /* T_UNION */
+ bt_Enum, /* T_ENUM */
+ bt_Enum, /* T_MOE */
+ bt_UChar, /* T_UCHAR */
+ bt_UShort, /* T_USHORT */
+ bt_UInt, /* T_UINT */
+ bt_ULong /* T_ULONG */
+};
+
+/* Convert COFF storage class to ECOFF storage class. */
+static sc_t map_coff_storage[ (int)C_MAX ] = {
+ sc_Nil, /* 0: C_NULL */
+ sc_Abs, /* 1: C_AUTO auto var */
+ sc_Undefined, /* 2: C_EXT external */
+ sc_Data, /* 3: C_STAT static */
+ sc_Register, /* 4: C_REG register */
+ sc_Undefined, /* 5: C_EXTDEF ??? */
+ sc_Text, /* 6: C_LABEL label */
+ sc_Text, /* 7: C_ULABEL user label */
+ sc_Info, /* 8: C_MOS member of struct */
+ sc_Abs, /* 9: C_ARG argument */
+ sc_Info, /* 10: C_STRTAG struct tag */
+ sc_Info, /* 11: C_MOU member of union */
+ sc_Info, /* 12: C_UNTAG union tag */
+ sc_Info, /* 13: C_TPDEF typedef */
+ sc_Data, /* 14: C_USTATIC ??? */
+ sc_Info, /* 15: C_ENTAG enum tag */
+ sc_Info, /* 16: C_MOE member of enum */
+ sc_Register, /* 17: C_REGPARM register parameter */
+ sc_Bits, /* 18; C_FIELD bitfield */
+ sc_Nil, /* 19 */
+ sc_Nil, /* 20 */
+ sc_Nil, /* 21 */
+ sc_Nil, /* 22 */
+ sc_Nil, /* 23 */
+ sc_Nil, /* 24 */
+ sc_Nil, /* 25 */
+ sc_Nil, /* 26 */
+ sc_Nil, /* 27 */
+ sc_Nil, /* 28 */
+ sc_Nil, /* 29 */
+ sc_Nil, /* 30 */
+ sc_Nil, /* 31 */
+ sc_Nil, /* 32 */
+ sc_Nil, /* 33 */
+ sc_Nil, /* 34 */
+ sc_Nil, /* 35 */
+ sc_Nil, /* 36 */
+ sc_Nil, /* 37 */
+ sc_Nil, /* 38 */
+ sc_Nil, /* 39 */
+ sc_Nil, /* 40 */
+ sc_Nil, /* 41 */
+ sc_Nil, /* 42 */
+ sc_Nil, /* 43 */
+ sc_Nil, /* 44 */
+ sc_Nil, /* 45 */
+ sc_Nil, /* 46 */
+ sc_Nil, /* 47 */
+ sc_Nil, /* 48 */
+ sc_Nil, /* 49 */
+ sc_Nil, /* 50 */
+ sc_Nil, /* 51 */
+ sc_Nil, /* 52 */
+ sc_Nil, /* 53 */
+ sc_Nil, /* 54 */
+ sc_Nil, /* 55 */
+ sc_Nil, /* 56 */
+ sc_Nil, /* 57 */
+ sc_Nil, /* 58 */
+ sc_Nil, /* 59 */
+ sc_Nil, /* 60 */
+ sc_Nil, /* 61 */
+ sc_Nil, /* 62 */
+ sc_Nil, /* 63 */
+ sc_Nil, /* 64 */
+ sc_Nil, /* 65 */
+ sc_Nil, /* 66 */
+ sc_Nil, /* 67 */
+ sc_Nil, /* 68 */
+ sc_Nil, /* 69 */
+ sc_Nil, /* 70 */
+ sc_Nil, /* 71 */
+ sc_Nil, /* 72 */
+ sc_Nil, /* 73 */
+ sc_Nil, /* 74 */
+ sc_Nil, /* 75 */
+ sc_Nil, /* 76 */
+ sc_Nil, /* 77 */
+ sc_Nil, /* 78 */
+ sc_Nil, /* 79 */
+ sc_Nil, /* 80 */
+ sc_Nil, /* 81 */
+ sc_Nil, /* 82 */
+ sc_Nil, /* 83 */
+ sc_Nil, /* 84 */
+ sc_Nil, /* 85 */
+ sc_Nil, /* 86 */
+ sc_Nil, /* 87 */
+ sc_Nil, /* 88 */
+ sc_Nil, /* 89 */
+ sc_Nil, /* 90 */
+ sc_Nil, /* 91 */
+ sc_Nil, /* 92 */
+ sc_Nil, /* 93 */
+ sc_Nil, /* 94 */
+ sc_Nil, /* 95 */
+ sc_Nil, /* 96 */
+ sc_Nil, /* 97 */
+ sc_Nil, /* 98 */
+ sc_Nil, /* 99 */
+ sc_Text, /* 100: C_BLOCK block start/end */
+ sc_Text, /* 101: C_FCN function start/end */
+ sc_Info, /* 102: C_EOS end of struct/union/enum */
+ sc_Nil, /* 103: C_FILE file start */
+ sc_Nil, /* 104: C_LINE line number */
+ sc_Nil, /* 105: C_ALIAS combined type info */
+ sc_Nil, /* 106: C_HIDDEN ??? */
+};
+
+/* Convert COFF storage class to ECOFF symbol type. */
+static st_t map_coff_sym_type[ (int)C_MAX ] = {
+ st_Nil, /* 0: C_NULL */
+ st_Local, /* 1: C_AUTO auto var */
+ st_Global, /* 2: C_EXT external */
+ st_Static, /* 3: C_STAT static */
+ st_Local, /* 4: C_REG register */
+ st_Global, /* 5: C_EXTDEF ??? */
+ st_Label, /* 6: C_LABEL label */
+ st_Label, /* 7: C_ULABEL user label */
+ st_Member, /* 8: C_MOS member of struct */
+ st_Param, /* 9: C_ARG argument */
+ st_Block, /* 10: C_STRTAG struct tag */
+ st_Member, /* 11: C_MOU member of union */
+ st_Block, /* 12: C_UNTAG union tag */
+ st_Typedef, /* 13: C_TPDEF typedef */
+ st_Static, /* 14: C_USTATIC ??? */
+ st_Block, /* 15: C_ENTAG enum tag */
+ st_Member, /* 16: C_MOE member of enum */
+ st_Param, /* 17: C_REGPARM register parameter */
+ st_Member, /* 18; C_FIELD bitfield */
+ st_Nil, /* 19 */
+ st_Nil, /* 20 */
+ st_Nil, /* 21 */
+ st_Nil, /* 22 */
+ st_Nil, /* 23 */
+ st_Nil, /* 24 */
+ st_Nil, /* 25 */
+ st_Nil, /* 26 */
+ st_Nil, /* 27 */
+ st_Nil, /* 28 */
+ st_Nil, /* 29 */
+ st_Nil, /* 30 */
+ st_Nil, /* 31 */
+ st_Nil, /* 32 */
+ st_Nil, /* 33 */
+ st_Nil, /* 34 */
+ st_Nil, /* 35 */
+ st_Nil, /* 36 */
+ st_Nil, /* 37 */
+ st_Nil, /* 38 */
+ st_Nil, /* 39 */
+ st_Nil, /* 40 */
+ st_Nil, /* 41 */
+ st_Nil, /* 42 */
+ st_Nil, /* 43 */
+ st_Nil, /* 44 */
+ st_Nil, /* 45 */
+ st_Nil, /* 46 */
+ st_Nil, /* 47 */
+ st_Nil, /* 48 */
+ st_Nil, /* 49 */
+ st_Nil, /* 50 */
+ st_Nil, /* 51 */
+ st_Nil, /* 52 */
+ st_Nil, /* 53 */
+ st_Nil, /* 54 */
+ st_Nil, /* 55 */
+ st_Nil, /* 56 */
+ st_Nil, /* 57 */
+ st_Nil, /* 58 */
+ st_Nil, /* 59 */
+ st_Nil, /* 60 */
+ st_Nil, /* 61 */
+ st_Nil, /* 62 */
+ st_Nil, /* 63 */
+ st_Nil, /* 64 */
+ st_Nil, /* 65 */
+ st_Nil, /* 66 */
+ st_Nil, /* 67 */
+ st_Nil, /* 68 */
+ st_Nil, /* 69 */
+ st_Nil, /* 70 */
+ st_Nil, /* 71 */
+ st_Nil, /* 72 */
+ st_Nil, /* 73 */
+ st_Nil, /* 74 */
+ st_Nil, /* 75 */
+ st_Nil, /* 76 */
+ st_Nil, /* 77 */
+ st_Nil, /* 78 */
+ st_Nil, /* 79 */
+ st_Nil, /* 80 */
+ st_Nil, /* 81 */
+ st_Nil, /* 82 */
+ st_Nil, /* 83 */
+ st_Nil, /* 84 */
+ st_Nil, /* 85 */
+ st_Nil, /* 86 */
+ st_Nil, /* 87 */
+ st_Nil, /* 88 */
+ st_Nil, /* 89 */
+ st_Nil, /* 90 */
+ st_Nil, /* 91 */
+ st_Nil, /* 92 */
+ st_Nil, /* 93 */
+ st_Nil, /* 94 */
+ st_Nil, /* 95 */
+ st_Nil, /* 96 */
+ st_Nil, /* 97 */
+ st_Nil, /* 98 */
+ st_Nil, /* 99 */
+ st_Block, /* 100: C_BLOCK block start/end */
+ st_Proc, /* 101: C_FCN function start/end */
+ st_End, /* 102: C_EOS end of struct/union/enum */
+ st_File, /* 103: C_FILE file start */
+ st_Nil, /* 104: C_LINE line number */
+ st_Nil, /* 105: C_ALIAS combined type info */
+ st_Nil, /* 106: C_HIDDEN ??? */
+};
+
+/* Map COFF derived types to ECOFF type qualifiers. */
+static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
+ tq_Nil, /* 0: DT_NON no more qualifiers */
+ tq_Ptr, /* 1: DT_PTR pointer */
+ tq_Proc, /* 2: DT_FCN function */
+ tq_Array, /* 3: DT_ARY array */
+};
+
+
+
+/* Pointers and such to the original symbol table that is read in. */
+static struct filehdr orig_file_header; /* global object file header */
+
+static HDRR orig_sym_hdr; /* symbolic header on input */
+static char *orig_linenum; /* line numbers */
+static DNR *orig_dense; /* dense numbers */
+static PDR *orig_procs; /* procedures */
+static SYMR *orig_local_syms; /* local symbols */
+static OPTR *orig_opt_syms; /* optimization symbols */
+static AUXU *orig_aux_syms; /* auxiliary symbols */
+static char *orig_local_strs; /* local strings */
+static char *orig_ext_strs; /* external strings */
+static FDR *orig_files; /* file descriptors */
+static symint_t *orig_rfds; /* relative file desc's */
+static EXTR *orig_ext_syms; /* external symbols */
+
+/* Macros to convert an index into a given object within the original
+ symbol table. */
+#define CHECK(num,max,str) \
+ (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
+
+#define ORIG_LINENUM(index) (CHECK ((index), orig_sym_hdr.cbLine, "line#"), (index) + orig_linenum)
+#define ORIG_DENSE(index) (CHECK ((index), orig_sym_hdr.idnMax, "dense"), (index) + orig_dense)
+#define ORIG_PROCS(index) (CHECK ((index), orig_sym_hdr.ipdMax, "procs"), (index) + orig_procs)
+#define ORIG_FILES(index) (CHECK ((index), orig_sym_hdr.ifdMax, "funcs"), (index) + orig_files)
+#define ORIG_LSYMS(index) (CHECK ((index), orig_sym_hdr.isymMax, "lsyms"), (index) + orig_local_syms)
+#define ORIG_LSTRS(index) (CHECK ((index), orig_sym_hdr.issMax, "lstrs"), (index) + orig_local_strs)
+#define ORIG_ESYMS(index) (CHECK ((index), orig_sym_hdr.iextMax, "esyms"), (index) + orig_ext_syms)
+#define ORIG_ESTRS(index) (CHECK ((index), orig_sym_hdr.issExtMax, "estrs"), (index) + orig_ext_strs)
+#define ORIG_OPT(index) (CHECK ((index), orig_sym_hdr.ioptMax, "opt"), (index) + orig_opt_syms)
+#define ORIG_AUX(index) (CHECK ((index), orig_sym_hdr.iauxMax, "aux"), (index) + orig_aux_syms)
+#define ORIG_RFDS(index) (CHECK ((index), orig_sym_hdr.crfd, "rfds"), (index) + orig_rfds)
+
+/* Various other statics. */
+static HDRR symbolic_header; /* symbolic header */
+static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
+static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
+static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
+static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
+static long file_offset = 0; /* current file offset */
+static long max_file_offset = 0; /* maximum file offset */
+static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
+static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
+static char *progname = (char *)0; /* program name for errors */
+static char *input_name = "stdin"; /* name of input file */
+static char *object_name = (char *)0; /* tmp. name of object file */
+static char *obj_in_name = (char *)0; /* name of input object file */
+static char *cur_line_start = (char *)0; /* current line read in */
+static char *cur_line_ptr = (char *)0; /* ptr within current line */
+static unsigned cur_line_nbytes = 0; /* # bytes for current line */
+static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
+static long line_number = 0; /* current input line number */
+static int debug = 0; /* trace functions */
+static int version = 0; /* print version # */
+static int had_errors = 0; /* != 0 if errors were found */
+static int rename_output = 0; /* != 0 if rename output file*/
+static int delete_input = 0; /* != 0 if delete input after done */
+
+\f
+/* Forward reference for functions. See the definition for more details. */
+
+#ifndef STATIC
+#define STATIC static
+#endif
+
+STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
+
+STATIC shash_t *hash_string __proto((const char *,
+ Ptrdiff_t,
+ shash_t **,
+ symint_t *));
+
+STATIC symint_t add_string __proto((varray_t *,
+ shash_t **,
+ const char *,
+ const char *,
+ shash_t **));
+
+STATIC symint_t add_local_symbol
+ __proto((const char *,
+ const char *,
+ st_t,
+ sc_t,
+ symint_t,
+ symint_t));
+
+STATIC symint_t add_ext_symbol __proto((const char *,
+ const char *,
+ st_t,
+ sc_t,
+ long,
+ symint_t,
+ int));
+
+STATIC symint_t add_aux_sym_symint
+ __proto((symint_t));
+
+STATIC symint_t add_aux_sym_rndx
+ __proto((int, symint_t));
+
+STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
+ hash_state_t,
+ thash_t **));
+
+STATIC tag_t * get_tag __proto((const char *,
+ const char *,
+ symint_t,
+ bt_t));
+
+STATIC void add_unknown_tag __proto((tag_t *));
+
+STATIC void add_procedure __proto((const char *,
+ const char *));
+
+STATIC void add_file __proto((const char *,
+ const char *));
+
+STATIC void add_bytes __proto((varray_t *,
+ char *,
+ Size_t));
+
+STATIC void add_varray_page __proto((varray_t *));
+
+STATIC void update_headers __proto((void));
+
+STATIC void write_varray __proto((varray_t *, off_t, const char *));
+STATIC void write_object __proto((void));
+STATIC char *st_to_string __proto((st_t));
+STATIC char *sc_to_string __proto((sc_t));
+STATIC char *read_line __proto((void));
+STATIC void parse_input __proto((void));
+STATIC void parse_begin __proto((const char *));
+STATIC void parse_bend __proto((const char *));
+STATIC void parse_def __proto((const char *));
+STATIC void parse_end __proto((const char *));
+STATIC void parse_ent __proto((const char *));
+STATIC void parse_file __proto((const char *));
+STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
+STATIC void copy_object __proto((void));
+
+STATIC void catch_signal __proto((int));
+STATIC page_t *allocate_page __proto((void));
+
+STATIC page_t *allocate_multiple_pages
+ __proto((Size_t));
+
+STATIC void free_multiple_pages
+ __proto((page_t *, Size_t));
+
+#ifndef MALLOC_CHECK
+STATIC page_t *allocate_cluster
+ __proto((Size_t));
+#endif
+
+STATIC word8_t *allocate_word8 __proto((void));
+STATIC void free_word8 __proto((word8_t *));
+
+
+/* Prototypes for library functions used. */
+#if !defined(NO_LIB_PROTOTYPE) && !defined(_OSF_SOURCE) && !defined(_STDIO_H_)
+extern char *strchr __proto((const char *, int));
+extern char *strrchr __proto((const char *, int));
+extern int strcmp __proto((const char *, const char *));
+extern long strtol __proto((const char *, char **, int));
+extern int memcmp __proto((CPTR_T, CPTR_T, Size_t));
+extern time_t time __proto((time_t *));
+extern int fputc __proto((int, FILE *));
+extern int vprintf __proto((const char *, va_list));
+extern int vfprintf __proto((FILE *, const char *, va_list));
+extern int vsprintf __proto((char *, const char *, va_list));
+extern int fclose __proto((FILE *));
+extern int fseek __proto((FILE *, long, int));
+extern long ftell __proto((FILE *));
+extern FILE *fopen __proto((const char *, const char *));
+extern FILE *freopen __proto((const char *, const char *, FILE *));
+extern int fflush __proto((FILE *));
+extern void perror __proto((const char *));
+extern void exit __proto((int));
+extern int open __proto((const char *, int, ...));
+extern int rename __proto((const char *, const char *));
+
+#ifndef sgi
+extern int setvbuf __proto((FILE *, char *, int, int));
+extern int fputs __proto((char *, FILE *));
+#endif
+
+#ifndef NO_LIB_INTERNALS
+extern int _filbuf __proto((FILE *));
+extern int _flsbuf __proto((int, FILE *));
+#endif
+#endif
+
+extern char *sbrk __proto((int));
+extern PTR_T malloc __proto((Size_t));
+extern PTR_T calloc __proto((Size_t, Size_t));
+extern PTR_T realloc __proto((PTR_T, Size_t));
+extern void free __proto((PTR_T));
+extern int close __proto((int));
+extern int write __proto((int, CPTR_T, Size_t));
+extern int read __proto((int, PTR_T, Size_t));
+extern long lseek __proto((int, long, int));
+extern int ftruncate __proto((int, long));
+extern int getopt __proto((int, char **, const char *));
+extern int fstat __proto((int, struct stat *));
+extern char *mktemp __proto((char *));
+
+extern char *optarg;
+extern int optind;
+extern int opterr;
+
+#ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
+#define SEEK_SET 0 /* Set file pointer to offset */
+#define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
+#define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
+#endif
+
+\f
+/* List of assembler pseudo ops and beginning sequences that need
+ special actions. Someday, this should be a hash table, and such,
+ but for now a linear list of names and calls to memcmp will
+ do...... */
+
+typedef struct _pseudo_ops {
+ const char *name; /* pseduo-op in ascii */
+ int len; /* length of name to compare */
+ void (*func) __proto((const char *)); /* function to handle line */
+} pseudo_ops_t;
+
+static pseudo_ops_t pseudo_ops[] = {
+ { "#.def", sizeof("#.def")-1, parse_def },
+ { "#.begin", sizeof("#.begin")-1, parse_begin },
+ { "#.bend", sizeof("#.bend")-1, parse_bend },
+ { ".end", sizeof(".end")-1, parse_end },
+ { ".ent", sizeof(".ent")-1, parse_ent },
+ { ".file", sizeof(".file")-1, parse_file },
+};
+
+\f
+/* Add a page to a varray object. */
+
+STATIC void
+add_varray_page (vp)
+ varray_t *vp; /* varray to add page to */
+{
+ vlinks_t *new_links = (vlinks_t *) allocate_word8 ();
+
+#ifdef MALLOC_CHECK
+ if (vp->object_size > 1)
+ new_links->datum = (page_t *) xcalloc (1, vp->object_size);
+ else
+#endif
+ new_links->datum = allocate_page ();
+
+ new_links->start_index = vp->num_allocated;
+ vp->objects_last_page = 0;
+
+ if (vp->first == (vlinks_t *)0) /* first allocation? */
+ vp->first = vp->last = new_links;
+ else
+ { /* 2nd or greater allocation */
+ new_links->prev = vp->last;
+ vp->last->next = new_links;
+ vp->last = new_links;
+ }
+}
+
+\f
+/* Compute hash code (from tree.c) */
+
+#define HASHBITS 30
+
+STATIC shash_t *
+hash_string (text, hash_len, hash_tbl, ret_hash_index)
+ const char *text; /* ptr to text to hash */
+ Ptrdiff_t hash_len; /* length of the text */
+ shash_t **hash_tbl; /* hash table */
+ symint_t *ret_hash_index; /* ptr to store hash index */
+{
+ register unsigned long hi;
+ register Ptrdiff_t i;
+ register shash_t *ptr;
+ register int first_ch = *text;
+
+ hi = hash_len;
+ for (i = 0; i < hash_len; i++)
+ hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
+
+ hi &= (1 << HASHBITS) - 1;
+ hi %= SHASH_SIZE;
+
+ if (ret_hash_index != (symint_t *)0)
+ *ret_hash_index = hi;
+
+ for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
+ if (hash_len == ptr->len
+ && first_ch == ptr->string[0]
+ && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
+ break;
+
+ return ptr;
+}
+
+\f
+/* Add a string (and null pad) to one of the string tables. A
+ consequence of hashing strings, is that we don't let strings
+ cross page boundaries. The extra nulls will be ignored. */
+
+STATIC symint_t
+add_string (vp, hash_tbl, start, end_p1, ret_hash)
+ varray_t *vp; /* string virtual array */
+ shash_t **hash_tbl; /* ptr to hash table */
+ const char *start; /* 1st byte in string */
+ const char *end_p1; /* 1st byte after string */
+ shash_t **ret_hash; /* return hash pointer */
+{
+ register Ptrdiff_t len = end_p1 - start;
+ register shash_t *hash_ptr;
+ symint_t hi;
+
+ if (len >= PAGE_USIZE)
+ fatal ("String too big (%ld bytes)", (long) len);
+
+ hash_ptr = hash_string (start, len, hash_tbl, &hi);
+ if (hash_ptr == (shash_t *)0)
+ {
+ register char *p;
+
+ if (vp->objects_last_page + len >= PAGE_USIZE)
+ {
+ vp->num_allocated =
+ ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
+ add_varray_page (vp);
+ }
+
+ hash_ptr = (shash_t *) allocate_word8 ();
+ hash_ptr->next = hash_tbl[hi];
+ hash_tbl[hi] = hash_ptr;
+
+ hash_ptr->len = len;
+ hash_ptr->index = vp->num_allocated;
+ hash_ptr->string = p =
+ & vp->last->datum->byte[ vp->objects_last_page ];
+
+ vp->objects_last_page += len+1;
+ vp->num_allocated += len+1;
+
+ while (len-- > 0)
+ *p++ = *start++;
+
+ *p = '\0';
+ }
+
+ if (ret_hash != (shash_t **)0)
+ *ret_hash = hash_ptr;
+
+ return hash_ptr->index;
+}
+
+\f
+/* Add a local symbol. */
+
+STATIC symint_t
+add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
+ const char *str_start; /* first byte in string */
+ const char *str_end_p1; /* first byte after string */
+ st_t type; /* symbol type */
+ sc_t storage; /* storage class */
+ symint_t value; /* value of symbol */
+ symint_t indx; /* index to local/aux. syms */
+{
+ register symint_t ret;
+ register SYMR *psym;
+ register scope_t *pscope;
+ register thead_t *ptag_head;
+ register tag_t *ptag;
+ register tag_t *ptag_next;
+ register varray_t *vp = &cur_file_ptr->symbols;
+ register int scope_delta = 0;
+ shash_t *hash_ptr = (shash_t *)0;
+
+ if (vp->objects_last_page == vp->objects_per_page)
+ add_varray_page (vp);
+
+ psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
+
+ psym->value = value;
+ psym->st = (unsigned) type;
+ psym->sc = (unsigned) storage;
+ psym->index = indx;
+ psym->iss = (str_start == (const char *)0)
+ ? 0
+ : add_string (&cur_file_ptr->strings,
+ &cur_file_ptr->shash_head[0],
+ str_start,
+ str_end_p1,
+ &hash_ptr);
+
+ ret = vp->num_allocated++;
+
+ /* Save the symbol within the hash table if this is a static
+ item. */
+ if (type == st_Global || type == st_Static || type == st_Label
+ || type == st_Proc || type == st_StaticProc)
+ hash_ptr->sym_ptr = psym;
+
+ /* push or pop a scope if appropriate. */
+ switch (type)
+ {
+ default:
+ break;
+
+ case st_File: /* beginning of file */
+ case st_Proc: /* procedure */
+ case st_StaticProc: /* static procedure */
+ case st_Block: /* begin scope */
+ pscope = (scope_t *) allocate_word8 ();
+ pscope->prev = cur_file_ptr->cur_scope;
+ pscope->lsym = psym;
+ pscope->lnumber = ret;
+ pscope->type = type;
+ cur_file_ptr->cur_scope = pscope;
+
+ if (type != st_File)
+ scope_delta = 1;
+
+ /* For every block type except file, struct, union, or
+ enumeration blocks, push a level on the tag stack. We omit
+ file types, so that tags can span file boundaries. */
+ if (type != st_File && storage != sc_Info)
+ {
+ ptag_head = (thead_t *) allocate_word8 ();
+ ptag_head->first_tag = 0;
+ ptag_head->prev = cur_tag_head;
+ cur_tag_head = ptag_head;
+ }
+ break;
+
+ case st_End:
+ pscope = cur_file_ptr->cur_scope;
+ if (pscope == (scope_t *)0)
+ error ("internal error, too many st_End's");
+
+ else
+ {
+ st_t begin_type = (st_t) pscope->lsym->st;
+
+ if (begin_type != st_File)
+ scope_delta = -1;
+
+ /* Except for file, structure, union, or enumeration end
+ blocks remove all tags created within this scope. */
+ if (begin_type != st_File && storage != sc_Info)
+ {
+ ptag_head = cur_tag_head;
+ cur_tag_head = ptag_head->prev;
+
+ for (ptag = ptag_head->first_tag;
+ ptag != (tag_t *)0;
+ ptag = ptag_next)
+ {
+ if (ptag->forward_ref != (forward_t *)0)
+ add_unknown_tag (ptag);
+
+ ptag_next = ptag->same_block;
+ ptag->hash_ptr->tag_ptr = ptag->same_name;
+ free_word8 ((word8_t *) ptag);
+ }
+
+ free_word8 ((word8_t *) ptag_head);
+ }
+
+ cur_file_ptr->cur_scope = pscope->prev;
+ psym->index = pscope->lnumber; /* blk end gets begin sym # */
+
+ if (storage != sc_Info)
+ psym->iss = pscope->lsym->iss; /* blk end gets same name */
+
+ if (begin_type == st_File || begin_type == st_Block)
+ pscope->lsym->index = ret+1; /* block begin gets next sym # */
+
+ /* Functions push two or more aux words as follows:
+ 1st word: index+1 of the end symbol
+ 2nd word: type of the function (plus any aux words needed).
+ Also, tie the external pointer back to the function begin symbol. */
+ else
+ {
+ symint_t type;
+ pscope->lsym->index = add_aux_sym_symint (ret+1);
+ type = add_aux_sym_tir (&last_func_type_info,
+ hash_no,
+ &cur_file_ptr->thash_head[0]);
+ if (last_func_eptr)
+ {
+ last_func_eptr->ifd = cur_file_ptr->file_index;
+ last_func_eptr->asym.index = type;
+ }
+ }
+
+ free_word8 ((word8_t *) pscope);
+ }
+ }
+
+ cur_file_ptr->nested_scopes += scope_delta;
+
+ if (debug && type != st_File
+ && (debug > 2 || type == st_Block || type == st_End
+ || type == st_Proc || type == st_StaticProc))
+ {
+ char *sc_str = sc_to_string (storage);
+ char *st_str = st_to_string (type);
+ int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
+
+ fprintf (stderr,
+ "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
+ value, depth, sc_str);
+
+ if (str_start && str_end_p1 - str_start > 0)
+ fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
+ else
+ {
+ Size_t len = strlen (st_str);
+ fprintf (stderr, " st= %.*s\n", len-1, st_str);
+ }
+ }
+
+ return ret;
+}
+
+\f
+/* Add an external symbol. */
+
+STATIC symint_t
+add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
+ const char *str_start; /* first byte in string */
+ const char *str_end_p1; /* first byte after string */
+ st_t type; /* symbol type */
+ sc_t storage; /* storage class */
+ long value; /* value of symbol */
+ symint_t indx; /* index to local/aux. syms */
+ int ifd; /* file index */
+{
+ register EXTR *psym;
+ register varray_t *vp = &ext_symbols;
+ shash_t *hash_ptr = (shash_t *)0;
+
+ if (debug > 1)
+ {
+ char *sc_str = sc_to_string (storage);
+ char *st_str = st_to_string (type);
+
+ fprintf (stderr,
+ "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
+ value, ifd, sc_str);
+
+ if (str_start && str_end_p1 - str_start > 0)
+ fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
+ else
+ fprintf (stderr, " st= %s\n", st_str);
+ }
+
+ if (vp->objects_last_page == vp->objects_per_page)
+ add_varray_page (vp);
+
+ psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
+
+ psym->ifd = ifd;
+ psym->asym.value = value;
+ psym->asym.st = (unsigned) type;
+ psym->asym.sc = (unsigned) storage;
+ psym->asym.index = indx;
+ psym->asym.iss = (str_start == (const char *)0)
+ ? 0
+ : add_string (&ext_strings,
+ &ext_str_hash[0],
+ str_start,
+ str_end_p1,
+ &hash_ptr);
+
+ hash_ptr->esym_ptr = psym;
+ return vp->num_allocated++;
+}
+
+\f
+/* Add an auxiliary symbol (passing a symint). */
+
+STATIC symint_t
+add_aux_sym_symint (aux_word)
+ symint_t aux_word; /* auxilary information word */
+{
+ register AUXU *aux_ptr;
+ register efdr_t *file_ptr = cur_file_ptr;
+ register varray_t *vp = &file_ptr->aux_syms;
+
+ if (vp->objects_last_page == vp->objects_per_page)
+ add_varray_page (vp);
+
+ aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
+ aux_ptr->isym = aux_word;
+
+ return vp->num_allocated++;
+}
+
+
+/* Add an auxiliary symbol (passing a file/symbol index combo). */
+
+STATIC symint_t
+add_aux_sym_rndx (file_index, sym_index)
+ int file_index;
+ symint_t sym_index;
+{
+ register AUXU *aux_ptr;
+ register efdr_t *file_ptr = cur_file_ptr;
+ register varray_t *vp = &file_ptr->aux_syms;
+
+ if (vp->objects_last_page == vp->objects_per_page)
+ add_varray_page (vp);
+
+ aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
+ aux_ptr->rndx.rfd = file_index;
+ aux_ptr->rndx.index = sym_index;
+
+ return vp->num_allocated++;
+}
+
+\f
+/* Add an auxiliary symbol (passing the basic type and possibly
+ type qualifiers). */
+
+STATIC symint_t
+add_aux_sym_tir (t, state, hash_tbl)
+ type_info_t *t; /* current type information */
+ hash_state_t state; /* whether to hash type or not */
+ thash_t **hash_tbl; /* pointer to hash table to use */
+{
+ register AUXU *aux_ptr;
+ register efdr_t *file_ptr = cur_file_ptr;
+ register varray_t *vp = &file_ptr->aux_syms;
+ static AUXU init_aux;
+ symint_t ret;
+ int i;
+ AUXU aux;
+
+ aux = init_aux;
+ aux.ti.bt = (int) t->basic_type;
+ aux.ti.continued = 0;
+ aux.ti.fBitfield = t->bitfield;
+
+ aux.ti.tq0 = (int) t->type_qualifiers[0];
+ aux.ti.tq1 = (int) t->type_qualifiers[1];
+ aux.ti.tq2 = (int) t->type_qualifiers[2];
+ aux.ti.tq3 = (int) t->type_qualifiers[3];
+ aux.ti.tq4 = (int) t->type_qualifiers[4];
+ aux.ti.tq5 = (int) t->type_qualifiers[5];
+
+
+ /* For anything that adds additional information, we must not hash,
+ so check here, and reset our state. */
+
+ if (state != hash_no
+ && (t->type_qualifiers[0] == tq_Array
+ || t->type_qualifiers[1] == tq_Array
+ || t->type_qualifiers[2] == tq_Array
+ || t->type_qualifiers[3] == tq_Array
+ || t->type_qualifiers[4] == tq_Array
+ || t->type_qualifiers[5] == tq_Array
+ || t->basic_type == bt_Struct
+ || t->basic_type == bt_Union
+ || t->basic_type == bt_Enum
+ || t->bitfield
+ || t->num_dims > 0))
+ state = hash_no;
+
+ /* See if we can hash this type, and save some space, but some types
+ can't be hashed (because they contain arrays or continuations),
+ and others can be put into the hash list, but cannot use existing
+ types because other aux entries precede this one. */
+
+ if (state != hash_no)
+ {
+ register thash_t *hash_ptr;
+ register symint_t hi;
+
+ hi = aux.isym & ((1 << HASHBITS) - 1);
+ hi %= THASH_SIZE;
+
+ for (hash_ptr = hash_tbl[hi];
+ hash_ptr != (thash_t *)0;
+ hash_ptr = hash_ptr->next)
+ {
+ if (aux.isym == hash_ptr->type.isym)
+ break;
+ }
+
+ if (hash_ptr != (thash_t *)0 && state == hash_yes)
+ return hash_ptr->index;
+
+ if (hash_ptr == (thash_t *)0)
+ {
+ hash_ptr = (thash_t *) allocate_word8 ();
+ hash_ptr->next = hash_tbl[hi];
+ hash_ptr->type = aux;
+ hash_ptr->index = vp->num_allocated;
+ hash_tbl[hi] = hash_ptr;
+ }
+ }
+
+ /* Everything is set up, add the aux symbol. */
+ if (vp->objects_last_page == vp->objects_per_page)
+ add_varray_page (vp);
+
+ aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
+ *aux_ptr = aux;
+
+ ret = vp->num_allocated++;
+
+ /* Add tag information if needed. Structure, union, and enum
+ references add 2 aux symbols: a [file index, symbol index]
+ pointer to the structure type, and the current file index. */
+
+ if (t->basic_type == bt_Struct
+ || t->basic_type == bt_Union
+ || t->basic_type == bt_Enum)
+ {
+ register symint_t file_index = t->tag_ptr->ifd;
+ register symint_t sym_index = t->tag_ptr->index;
+
+ if (t->unknown_tag)
+ {
+ (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
+ (void) add_aux_sym_symint ((symint_t)-1);
+ }
+ else if (sym_index != indexNil)
+ {
+ (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
+ (void) add_aux_sym_symint (file_index);
+ }
+ else
+ {
+ register forward_t *forward_ref = (forward_t *) allocate_word8 ();
+
+ forward_ref->type_ptr = aux_ptr;
+ forward_ref->next = t->tag_ptr->forward_ref;
+ t->tag_ptr->forward_ref = forward_ref;
+
+ (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
+ forward_ref->index_ptr
+ = &vp->last->datum->aux[ vp->objects_last_page - 1];
+
+ (void) add_aux_sym_symint (file_index);
+ forward_ref->ifd_ptr
+ = &vp->last->datum->aux[ vp->objects_last_page - 1];
+ }
+ }
+
+ /* Add bitfield length if it exists. */
+ if (t->bitfield)
+ (void) add_aux_sym_symint ((symint_t)t->sizes[0]);
+
+
+ /* Add information about array bounds if they exist. */
+ for (i = 0; i < t->num_dims; i++)
+ {
+ (void) add_aux_sym_rndx (ST_RFDESCAPE,
+ cur_file_ptr->int_type);
+
+ (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
+ (void) add_aux_sym_symint ((symint_t)0); /* low bound */
+ (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
+ (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
+ ? 0
+ : (t->sizes[i] * 8) / t->dimensions[i]);
+ };
+
+ return ret;
+}
+
+\f
+/* Add a tag to the tag table (unless it already exists). */
+
+STATIC tag_t *
+get_tag (tag_start, tag_end_p1, index, basic_type)
+ const char *tag_start; /* 1st byte of tag name */
+ const char *tag_end_p1; /* 1st byte after tag name */
+ symint_t index; /* index of tag start block */
+ bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
+{
+ shash_t *hash_ptr;
+ tag_t *tag_ptr;
+ hash_ptr = hash_string (tag_start,
+ tag_end_p1 - tag_start,
+ &tag_hash[0],
+ (symint_t *)0);
+
+ if (hash_ptr != (shash_t *)0
+ && hash_ptr->tag_ptr != (tag_t *)0)
+ {
+ tag_ptr = hash_ptr->tag_ptr;
+ if (index != indexNil)
+ {
+ tag_ptr->basic_type = basic_type;
+ tag_ptr->ifd = cur_file_ptr->file_index;
+ tag_ptr->index = index;
+ }
+ return tag_ptr;
+ }
+
+ (void) add_string (&tag_strings,
+ &tag_hash[0],
+ tag_start,
+ tag_end_p1,
+ &hash_ptr);
+
+ tag_ptr = (tag_t *) allocate_word8 ();
+ tag_ptr->forward_ref = (forward_t *) 0;
+ tag_ptr->hash_ptr = hash_ptr;
+ tag_ptr->same_name = hash_ptr->tag_ptr;
+ tag_ptr->basic_type = basic_type;
+ tag_ptr->index = index;
+ tag_ptr->ifd = (index == indexNil) ? -1 : cur_file_ptr->file_index;
+ tag_ptr->same_block = cur_tag_head->first_tag;
+
+ cur_tag_head->first_tag = tag_ptr;
+ hash_ptr->tag_ptr = tag_ptr;
+
+ return tag_ptr;
+}
+
+\f
+/* Add an unknown {struct, union, enum} tag. */
+
+STATIC void
+add_unknown_tag (ptag)
+ tag_t *ptag; /* pointer to tag information */
+{
+ shash_t *hash_ptr = ptag->hash_ptr;
+ char *name_start = hash_ptr->string;
+ char *name_end_p1 = name_start + hash_ptr->len;
+ forward_t *f_next = ptag->forward_ref;
+ forward_t *f_cur;
+ int sym_index;
+ int file_index = cur_file_ptr->file_index;
+
+ if (debug > 1)
+ {
+ char *agg_type = "{unknown aggregate type}";
+ switch (ptag->basic_type)
+ {
+ case bt_Struct: agg_type = "struct"; break;
+ case bt_Union: agg_type = "union"; break;
+ case bt_Enum: agg_type = "enum"; break;
+ default: break;
+ }
+
+ fprintf (stderr, "unknown %s %.*s found\n", agg_type,
+ hash_ptr->len, name_start);
+ }
+
+ sym_index = add_local_symbol (name_start,
+ name_end_p1,
+ st_Block,
+ sc_Info,
+ (symint_t)0,
+ (symint_t)0);
+
+ (void) add_local_symbol (name_start,
+ name_end_p1,
+ st_End,
+ sc_Info,
+ (symint_t)0,
+ (symint_t)0);
+
+ while (f_next != (forward_t *)0)
+ {
+ f_cur = f_next;
+ f_next = f_next->next;
+
+ f_cur->ifd_ptr->isym = file_index;
+ f_cur->index_ptr->rndx.index = sym_index;
+
+ free_word8 ((word8_t *) f_cur);
+ }
+
+ return;
+}
+
+\f
+/* Add a procedure to the current file's list of procedures, and record
+ this is the current procedure. If the assembler created a PDR for
+ this procedure, use that to initialize the current PDR. */
+
+STATIC void
+add_procedure (func_start, func_end_p1)
+ const char *func_start; /* 1st byte of func name */
+ const char *func_end_p1; /* 1st byte after func name */
+{
+ register PDR *new_proc_ptr;
+ register efdr_t *file_ptr = cur_file_ptr;
+ register varray_t *vp = &file_ptr->procs;
+ register symint_t value = 0;
+ register st_t proc_type = st_Proc;
+ register shash_t *shash_ptr = hash_string (func_start,
+ func_end_p1 - func_start,
+ &orig_str_hash[0],
+ (symint_t *)0);
+
+ if (debug)
+ fputc ('\n', stderr);
+
+ if (vp->objects_last_page == vp->objects_per_page)
+ add_varray_page (vp);
+
+ cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
+
+ vp->num_allocated++;
+
+
+ /* Did the assembler create this procedure? If so, get the PDR information. */
+ cur_oproc_ptr = (PDR *)0;
+ if (shash_ptr != (shash_t *)0)
+ {
+ register PDR *old_proc_ptr = shash_ptr->proc_ptr;
+ register SYMR *sym_ptr = shash_ptr->sym_ptr;
+
+ if (old_proc_ptr != (PDR *)0
+ && sym_ptr != (SYMR *)0
+ && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
+ {
+ cur_oproc_ptr = old_proc_ptr;
+ value = sym_ptr->value;
+ proc_type = (st_t)sym_ptr->st;
+ *new_proc_ptr = *old_proc_ptr; /* initialize */
+ }
+ }
+
+ if (cur_oproc_ptr == (PDR *)0)
+ error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
+
+ /* Determine the start of symbols. */
+ new_proc_ptr->isym = file_ptr->symbols.num_allocated;
+
+ /* Push the start of the function. */
+ (void) add_local_symbol (func_start,
+ func_end_p1,
+ proc_type,
+ sc_Text,
+ value,
+ (symint_t)0);
+}
+
+\f
+/* Add a new filename, and set up all of the file relative
+ virtual arrays (strings, symbols, aux syms, etc.). Record
+ where the current file structure lives. */
+
+STATIC void
+add_file (file_start, file_end_p1)
+ const char *file_start; /* first byte in string */
+ const char *file_end_p1; /* first byte after string */
+{
+ static char zero_bytes[2] = { '\0', '\0' };
+
+ register Ptrdiff_t len = file_end_p1 - file_start;
+ register int first_ch = *file_start;
+ register efdr_t *file_ptr;
+
+ if (debug)
+ fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
+
+ /* See if the file has already been created. */
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ if (first_ch == file_ptr->name[0]
+ && file_ptr->name[len] == '\0'
+ && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
+ {
+ cur_file_ptr = file_ptr;
+ break;
+ }
+ }
+
+ /* If this is a new file, create it. */
+ if (file_ptr == (efdr_t *)0)
+ {
+ if (file_desc.objects_last_page == file_desc.objects_per_page)
+ add_varray_page (&file_desc);
+
+ file_ptr = cur_file_ptr =
+ &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
+ *file_ptr = init_file;
+
+ file_ptr->file_index = file_desc.num_allocated++;
+
+ /* Allocate the string hash table. */
+ file_ptr->shash_head = (shash_t **) allocate_page ();
+
+ /* Make sure 0 byte in string table is null */
+ add_string (&file_ptr->strings,
+ &file_ptr->shash_head[0],
+ &zero_bytes[0],
+ &zero_bytes[0],
+ (shash_t **)0);
+
+ if (file_end_p1 - file_start > PAGE_USIZE-2)
+ fatal ("Filename goes over one page boundary.");
+
+ /* Push the start of the filename. We assume that the filename
+ will be stored at string offset 1. */
+ (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
+ (symint_t)0, (symint_t)0);
+ file_ptr->fdr.rss = 1;
+ file_ptr->name = &file_ptr->strings.last->datum->byte[1];
+ file_ptr->name_len = file_end_p1 - file_start;
+
+ /* Update the linked list of file descriptors. */
+ if (first_file == (efdr_t *)0)
+ first_file = file_ptr;
+ else
+ last_file->next_file = file_ptr;
+
+ last_file = file_ptr;
+
+ /* Add void & int types to the file (void should be first to catch
+ errant 0's within the index fields). */
+ file_ptr->void_type = add_aux_sym_tir (&void_type_info,
+ hash_yes,
+ &cur_file_ptr->thash_head[0]);
+
+ file_ptr->int_type = add_aux_sym_tir (&int_type_info,
+ hash_yes,
+ &cur_file_ptr->thash_head[0]);
+ }
+}
+
+\f
+/* Add a stream of random bytes to a varray. */
+
+STATIC void
+add_bytes (vp, input_ptr, nitems)
+ varray_t *vp; /* virtual array to add too */
+ char *input_ptr; /* start of the bytes */
+ Size_t nitems; /* # items to move */
+{
+ register Size_t move_items;
+ register Size_t move_bytes;
+ register char *ptr;
+
+ while (nitems > 0)
+ {
+ if (vp->objects_last_page >= vp->objects_per_page)
+ add_varray_page (vp);
+
+ ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
+ move_items = vp->objects_per_page - vp->objects_last_page;
+ if (move_items > nitems)
+ move_items = nitems;
+
+ move_bytes = move_items * vp->object_size;
+ nitems -= move_items;
+
+ if (move_bytes >= 32)
+ {
+ (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
+ input_ptr += move_bytes;
+ }
+ else
+ {
+ while (move_bytes-- > 0)
+ *ptr++ = *input_ptr++;
+ }
+ }
+}
+
+\f
+/* Convert storage class to string. */
+
+STATIC char *
+sc_to_string(storage_class)
+ sc_t storage_class;
+{
+ switch(storage_class)
+ {
+ case sc_Nil: return "Nil,";
+ case sc_Text: return "Text,";
+ case sc_Data: return "Data,";
+ case sc_Bss: return "Bss,";
+ case sc_Register: return "Register,";
+ case sc_Abs: return "Abs,";
+ case sc_Undefined: return "Undefined,";
+ case sc_CdbLocal: return "CdbLocal,";
+ case sc_Bits: return "Bits,";
+ case sc_CdbSystem: return "CdbSystem,";
+ case sc_RegImage: return "RegImage,";
+ case sc_Info: return "Info,";
+ case sc_UserStruct: return "UserStruct,";
+ case sc_SData: return "SData,";
+ case sc_SBss: return "SBss,";
+ case sc_RData: return "RData,";
+ case sc_Var: return "Var,";
+ case sc_Common: return "Common,";
+ case sc_SCommon: return "SCommon,";
+ case sc_VarRegister: return "VarRegister,";
+ case sc_Variant: return "Variant,";
+ case sc_SUndefined: return "SUndefined,";
+ case sc_Init: return "Init,";
+ case sc_Max: return "Max,";
+ }
+
+ return "???,";
+}
+
+\f
+/* Convert symbol type to string. */
+
+STATIC char *
+st_to_string(symbol_type)
+ st_t symbol_type;
+{
+ switch(symbol_type)
+ {
+ case st_Nil: return "Nil,";
+ case st_Global: return "Global,";
+ case st_Static: return "Static,";
+ case st_Param: return "Param,";
+ case st_Local: return "Local,";
+ case st_Label: return "Label,";
+ case st_Proc: return "Proc,";
+ case st_Block: return "Block,";
+ case st_End: return "End,";
+ case st_Member: return "Member,";
+ case st_Typedef: return "Typedef,";
+ case st_File: return "File,";
+ case st_RegReloc: return "RegReloc,";
+ case st_Forward: return "Forward,";
+ case st_StaticProc: return "StaticProc,";
+ case st_Constant: return "Constant,";
+ case st_Str: return "String,";
+ case st_Number: return "Number,";
+ case st_Expr: return "Expr,";
+ case st_Type: return "Type,";
+ case st_Max: return "Max,";
+ }
+
+ return "???,";
+}
+
+\f
+/* Read a line from standard input, and return the start of the
+ buffer (which is grows if the line is too big). */
+
+STATIC char *
+read_line __proto((void))
+{
+ register int ch;
+ register char *ptr;
+
+ if (cur_line_start == (char *)0)
+ { /* allocate initial page */
+ cur_line_start = (char *) allocate_page ();
+ cur_line_alloc = PAGE_SIZE;
+ }
+
+ cur_line_nbytes = 0;
+ line_number++;
+
+ for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
+ {
+ if (++cur_line_nbytes >= cur_line_alloc-1)
+ {
+ register int num_pages = cur_line_alloc / PAGE_SIZE;
+ register char *old_buffer = cur_line_start;
+
+ cur_line_alloc += PAGE_SIZE;
+ cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
+ memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
+
+ ptr = cur_line_start + cur_line_nbytes - 1;
+ }
+
+ if (ch == '\n')
+ {
+ *ptr++ = '\n';
+ *ptr = '\0';
+ cur_line_ptr = cur_line_start;
+ return cur_line_ptr;
+ }
+ }
+
+ if (ferror (stdin))
+ pfatal_with_name (input_name);
+
+ cur_line_ptr = (char *)0;
+ return (char *)0;
+}
+
+\f
+/* Parse #.begin directives which have a label as the first argument
+ which gives the location of the start of the block. */
+
+STATIC void
+parse_begin (start)
+ const char *start; /* start of directive */
+{
+ const char *end_p1; /* end of label */
+ int ch;
+ shash_t *hash_ptr; /* hash pointer to lookup label */
+
+ if (cur_file_ptr == (efdr_t *)0)
+ {
+ error ("#.begin directive without a preceeding .file directive");
+ return;
+ }
+
+ if (cur_proc_ptr == (PDR *)0)
+ {
+ error ("#.begin directive without a preceeding .ent directive");
+ return;
+ }
+
+ for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
+ ;
+
+ hash_ptr = hash_string (start,
+ end_p1 - start,
+ &orig_str_hash[0],
+ (symint_t *)0);
+
+ if (hash_ptr == (shash_t *)0)
+ {
+ error ("Label %.*s not found for #.begin", end_p1 - start, start);
+ return;
+ }
+
+ (void) add_local_symbol ((const char *)0,
+ (const char *)0,
+ st_Block,
+ sc_Text,
+ (symint_t)hash_ptr->sym_ptr->value,
+ (symint_t)0);
+}
+
+\f
+/* Parse #.bend directives which have a label as the first argument
+ which gives the location of the end of the block. */
+
+STATIC void
+parse_bend (start)
+ const char *start; /* start of directive */
+{
+ const char *end_p1; /* end of label */
+ int ch;
+ shash_t *hash_ptr; /* hash pointer to lookup label */
+
+ if (cur_file_ptr == (efdr_t *)0)
+ {
+ error ("#.begin directive without a preceeding .file directive");
+ return;
+ }
+
+ if (cur_proc_ptr == (PDR *)0)
+ {
+ error ("#.begin directive without a preceeding .ent directive");
+ return;
+ }
+
+ for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
+ ;
+
+ hash_ptr = hash_string (start,
+ end_p1 - start,
+ &orig_str_hash[0],
+ (symint_t *)0);
+
+ if (hash_ptr == (shash_t *)0)
+ {
+ error ("Label %.*s not found for #.begin", end_p1 - start, start);
+ return;
+ }
+
+ (void) add_local_symbol ((const char *)0,
+ (const char *)0,
+ st_End,
+ sc_Text,
+ (symint_t)hash_ptr->sym_ptr->value,
+ (symint_t)0);
+}
+
+\f
+/* Parse #.def directives, which are contain standard COFF subdirectives
+ to describe the debugging format. These subdirectives include:
+
+ .scl specify storage class
+ .val specify a value
+ .endef specify end of COFF directives
+ .type specify the type
+ .size specify the size of an array
+ .dim specify an array dimension
+ .tag specify a tag for a struct, union, or enum. */
+
+STATIC void
+parse_def (name_start)
+ const char *name_start; /* start of directive */
+{
+ const char *dir_start; /* start of current directive*/
+ const char *dir_end_p1; /* end+1 of current directive*/
+ const char *arg_start; /* start of current argument */
+ const char *arg_end_p1; /* end+1 of current argument */
+ const char *name_end_p1; /* end+1 of label */
+ const char *tag_start = (const char *)0; /* start of tag name */
+ const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
+ sc_t storage_class = sc_Nil;
+ st_t symbol_type = st_Nil;
+ type_info_t t;
+ EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
+ int is_function = 0; /* != 0 if function */
+ symint_t value = 0;
+ symint_t index = cur_file_ptr->void_type;
+ int error_line = 0;
+ symint_t arg_number;
+ symint_t temp_array[ N_TQ ];
+ int arg_was_number;
+ int ch, i;
+ Ptrdiff_t len;
+
+ static int inside_enumeration = 0; /* is this an enumeration? */
+
+
+ /* Initialize the type information. */
+ t = type_info_init;
+
+
+ /* Search for the end of the name being defined. */
+ for (name_end_p1 = name_start; (ch = *name_end_p1) != ';'; name_end_p1++)
+ {
+ if (ch == '\0' || isspace (ch))
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+ }
+
+ /* Parse the remaining subdirectives now. */
+ dir_start = name_end_p1+1;
+ for (;;)
+ {
+ while ((ch = *dir_start) == ' ' || ch == '\t')
+ ++dir_start;
+
+ if (ch != '.')
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ /* Are we done? */
+ if (dir_start[1] == 'e'
+ && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
+ break;
+
+ /* Pick up the subdirective now */
+ for (dir_end_p1 = dir_start+1;
+ (ch = *dir_end_p1) != ' ' && ch != '\t';
+ dir_end_p1++)
+ {
+ if (ch == '\0' || isspace (ch))
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+ }
+
+ /* Pick up the subdirective argument now. */
+ arg_was_number = arg_number = 0;
+ arg_end_p1 = (const char *)0;
+ arg_start = dir_end_p1+1;
+ ch = *arg_start;
+ while (ch == ' ' || ch == '\t')
+ ch = *++arg_start;
+
+ if (isdigit (ch) || ch == '-' || ch == '+')
+ {
+ int ch2;
+ arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
+ if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
+ arg_was_number++;
+ }
+
+ else if (ch == '\0' || isspace (ch))
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ if (!arg_was_number)
+ for (arg_end_p1 = arg_start+1; (ch = *arg_end_p1) != ';'; arg_end_p1++)
+ {
+ if (ch == '\0' || isspace (ch))
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+ }
+
+
+ /* Classify the directives now. */
+ len = dir_end_p1 - dir_start;
+ switch (dir_start[1])
+ {
+ default:
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+
+ case 'd':
+ if (len == sizeof (".dim")-1
+ && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
+ && arg_was_number)
+ {
+ symint_t *t_ptr = &temp_array[ N_TQ-1 ];
+
+ *t_ptr = arg_number;
+ while (*arg_end_p1 == ',' && arg_was_number)
+ {
+ arg_start = arg_end_p1+1;
+ ch = *arg_start;
+ while (ch == ' ' || ch == '\t')
+ ch = *++arg_start;
+
+ arg_was_number = 0;
+ if (isdigit (ch) || ch == '-' || ch == '+')
+ {
+ int ch2;
+ arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
+ if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
+ arg_was_number++;
+
+ if (t_ptr == &temp_array[0])
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ *--t_ptr = arg_number;
+ }
+ }
+
+ /* Reverse order of dimensions. */
+ while (t_ptr <= &temp_array[ N_TQ-1 ])
+ {
+ if (t.num_dims >= N_TQ-1)
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ t.dimensions[ t.num_dims++ ] = *t_ptr++;
+ }
+ break;
+ }
+ else
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+
+ case 's':
+ if (len == sizeof (".scl")-1
+ && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
+ && arg_was_number
+ && arg_number < ((symint_t) C_MAX))
+ {
+ /* If the symbol is a static or external, we have
+ already gotten the appropriate type and class, so
+ make sure we don't override those values. This is
+ needed because there are some type and classes that
+ are not in COFF, such as short data, etc. */
+ if (symbol_type == st_Nil)
+ {
+ symbol_type = map_coff_sym_type[arg_number];
+ storage_class = map_coff_storage [arg_number];
+ }
+ break;
+ }
+
+ else if (len == sizeof (".size")-1
+ && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
+ && arg_was_number)
+ {
+ symint_t *t_ptr = &temp_array[ N_TQ-1 ];
+
+ *t_ptr = arg_number;
+ while (*arg_end_p1 == ',' && arg_was_number)
+ {
+ arg_start = arg_end_p1+1;
+ ch = *arg_start;
+ while (ch == ' ' || ch == '\t')
+ ch = *++arg_start;
+
+ arg_was_number = 0;
+ if (isdigit (ch) || ch == '-' || ch == '+')
+ {
+ int ch2;
+ arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
+ if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
+ arg_was_number++;
+
+ if (t_ptr == &temp_array[0])
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ *--t_ptr = arg_number;
+ }
+ }
+
+ /* Reverse order of sizes. */
+ while (t_ptr <= &temp_array[ N_TQ-1 ])
+ {
+ if (t.num_sizes >= N_TQ-1)
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ t.sizes[ t.num_sizes++ ] = *t_ptr++;
+ }
+ break;
+ }
+
+ else
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+
+ case 't':
+ if (len == sizeof (".type")-1
+ && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
+ && arg_was_number)
+ {
+ tq_t *tq_ptr = &t.type_qualifiers[0];
+
+ t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
+ t.basic_type = map_coff_types [(int)t.orig_type];
+ for (i = N_TQ-1; i >= 0; i--)
+ {
+ int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
+ & N_TMASK);
+
+ if (dt != (int)DT_NON)
+ *tq_ptr++ = map_coff_derived_type [dt];
+ }
+
+ /* If this is a function, ignore it, so that we don't get
+ two entries (one from the .ent, and one for the .def
+ that preceedes it). Save the type information so that
+ the end block can properly add it after the begin block
+ index. For MIPS knows what reason, we must strip off
+ the function type at this point. */
+ if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
+ {
+ is_function = 1;
+ tq_ptr[-1] = tq_Nil;
+ }
+
+ break;
+ }
+
+ else if (len == sizeof (".tag")-1
+ && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
+ {
+ tag_start = arg_start;
+ tag_end_p1 = arg_end_p1;
+ break;
+ }
+
+ else
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+
+ case 'v':
+ if (len == sizeof (".val")-1
+ && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
+ {
+ if (arg_was_number)
+ value = arg_number;
+
+ /* If the value is not an integer value, it must be the
+ name of a static or global item. Look up the name in
+ the orignal symbol table to pick up the storage
+ class, symbol type, etc. */
+ else
+ {
+ shash_t *orig_hash_ptr; /* hash within orig sym table*/
+ shash_t *ext_hash_ptr; /* hash within ext. sym table*/
+
+ ext_hash_ptr = hash_string (arg_start,
+ arg_end_p1 - arg_start,
+ &ext_str_hash[0],
+ (symint_t *)0);
+
+ if (ext_hash_ptr != (shash_t *)0
+ && ext_hash_ptr->esym_ptr != (EXTR *)0)
+ eptr = ext_hash_ptr->esym_ptr;
+
+ orig_hash_ptr = hash_string (arg_start,
+ arg_end_p1 - arg_start,
+ &orig_str_hash[0],
+ (symint_t *)0);
+
+ if ((orig_hash_ptr == (shash_t *)0
+ || orig_hash_ptr->sym_ptr == (SYMR *)0)
+ && eptr == (EXTR *)0)
+ error ("internal error, %.*s not found in original or external symbol tables",
+ arg_end_p1 - arg_start,
+ arg_start);
+ else
+ {
+ SYMR *ptr = (orig_hash_ptr != (shash_t *)0
+ && orig_hash_ptr->sym_ptr != (SYMR *)0)
+ ? orig_hash_ptr->sym_ptr
+ : &eptr->asym;
+
+ symbol_type = (st_t) ptr->st;
+ storage_class = (sc_t) ptr->sc;
+ value = ptr->value;
+ }
+ }
+ break;
+ }
+ else
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+ }
+
+ /* Set up to find next directive. */
+ dir_start = arg_end_p1 + 1;
+ }
+
+
+ t.extra_sizes = (tag_start != (char *)0);
+ if (t.num_dims > 0)
+ {
+ int diff = t.num_dims - t.num_sizes;
+ int i = t.num_dims - 1;
+ int j;
+
+ if (t.num_sizes != 1 || diff < 0)
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ /* If this is an array, make sure the same number of dimensions
+ and sizes were passed, creating extra sizes for multiply
+ dimensioned arrays if not passed. */
+
+ t.extra_sizes = 0;
+ if (diff)
+ {
+ for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
+ t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
+
+ t.num_sizes = i + 1;
+ for ( i--; i >= 0; i-- )
+ t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
+ }
+ }
+
+ else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
+ { /* Is this a bitfield? This is indicated by a structure memeber
+ having a size field that isn't an array. */
+
+ t.bitfield = 1;
+ }
+
+
+ /* Except for enumeration members & begin/ending of scopes, put the
+ type word in the aux. symbol table. */
+
+ if (symbol_type == st_Block || symbol_type == st_End)
+ index = 0;
+
+ else if (inside_enumeration)
+ index = cur_file_ptr->void_type;
+
+ else
+ {
+ if (t.basic_type == bt_Struct
+ || t.basic_type == bt_Union
+ || t.basic_type == bt_Enum)
+ {
+ if (tag_start == (char *)0)
+ {
+ error ("No tag specified for %.*s",
+ name_end_p1 - name_start,
+ name_start);
+ return;
+ }
+
+ t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
+ t.basic_type);
+ }
+
+ if (is_function)
+ {
+ last_func_type_info = t;
+ last_func_eptr = eptr;
+ return;
+ }
+
+ index = add_aux_sym_tir (&t,
+ hash_yes,
+ &cur_file_ptr->thash_head[0]);
+ }
+
+
+ /* If this is an external or static symbol, update the appropriate
+ external symbol. */
+
+ if (eptr != (EXTR *)0
+ && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
+ {
+ eptr->ifd = cur_file_ptr->file_index;
+ eptr->asym.index = index;
+ }
+
+
+ /* Do any last minute adjustments that are necessary. */
+ switch (symbol_type)
+ {
+ default:
+ break;
+
+
+ /* For the beginning of structs, unions, and enumerations, the
+ size info needs to be passed in the value field. */
+
+ case st_Block:
+ if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
+ {
+ error_line = __LINE__;
+ saber_stop ();
+ goto bomb_out;
+ }
+
+ else
+ value = t.sizes[0];
+
+ inside_enumeration = (t.orig_type == T_ENUM);
+ break;
+
+
+ /* For the end of structs, unions, and enumerations, omit the
+ name which is always ".eos". This needs to be done last, so
+ that any error reporting above gives the correct name. */
+
+ case st_End:
+ name_start = name_end_p1 = (const char *)0;
+ value = inside_enumeration = 0;
+ break;
+
+
+ /* Members of structures and unions that aren't bitfields, need
+ to adjust the value from a byte offset to a bit offset.
+ Members of enumerations do not have the value adjusted, and
+ can be distinquished by index == indexNil. For enumerations,
+ update the maximum enumeration value. */
+
+ case st_Member:
+ if (!t.bitfield && !inside_enumeration)
+ value *= 8;
+
+ break;
+ }
+
+
+ /* Add the symbol, except for global symbols outside of functions,
+ for which the external symbol table is fine enough. */
+
+ if (eptr == (EXTR *)0
+ || eptr->asym.st == (int)st_Nil
+ || cur_proc_ptr != (PDR *)0)
+ {
+ symint_t isym = add_local_symbol (name_start,
+ name_end_p1,
+ symbol_type,
+ storage_class,
+ value,
+ index);
+
+ /* deal with struct, union, and enum tags. */
+ if (symbol_type == st_Block)
+ {
+ /* Create or update the tag information. */
+ tag_t *tag_ptr = get_tag (name_start,
+ name_end_p1,
+ isym,
+ t.basic_type);
+
+ /* If there are any forward references, fill in the appropriate
+ file and symbol indexes. */
+
+ symint_t file_index = cur_file_ptr->file_index;
+ forward_t *f_next = tag_ptr->forward_ref;
+ forward_t *f_cur;
+
+ while (f_next != (forward_t *)0)
+ {
+ f_cur = f_next;
+ f_next = f_next->next;
+
+ f_cur->ifd_ptr->isym = file_index;
+ f_cur->index_ptr->rndx.index = isym;
+
+ free_word8 ((word8_t *) f_cur);
+ }
+
+ tag_ptr->forward_ref = (forward_t *)0;
+ }
+ }
+
+ /* Normal return */
+ return;
+
+ /* Error return, issue message. */
+bomb_out:
+ if (error_line)
+ error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
+ else
+ error ("compiler error, badly formed #.def");
+
+ return;
+}
+
+\f
+/* Parse .end directives. */
+
+STATIC void
+parse_end (start)
+ const char *start; /* start of directive */
+{
+ register const char *start_func, *end_func_p1;
+ register int ch;
+ register symint_t value;
+ register FDR *orig_fdr;
+
+ if (cur_file_ptr == (efdr_t *)0)
+ {
+ error (".end directive without a preceeding .file directive");
+ return;
+ }
+
+ if (cur_proc_ptr == (PDR *)0)
+ {
+ error (".end directive without a preceeding .ent directive");
+ return;
+ }
+
+ /* Get the function name, skipping whitespace. */
+ for (start_func = start; isspace (*start_func); start_func++)
+ ;
+
+ ch = *start_func;
+ if (!IS_ASM_IDENT (ch))
+ {
+ error (".end directive has no name");
+ return;
+ }
+
+ for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
+ ;
+
+
+ /* Get the value field for creating the end from the original object
+ file (which we find by locating the procedure start, and using the
+ pointer to the end+1 block and backing up. The index points to a
+ two word aux. symbol, whose first word is the index of the end
+ symbol, and the second word is the type of the function return
+ value. */
+
+ orig_fdr = cur_file_ptr->orig_fdr;
+ value = 0;
+ if (orig_fdr != (FDR *)0 && cur_oproc_ptr != (PDR *)0)
+ {
+ register SYMR *sym_ptr = ORIG_LSYMS (orig_fdr->isymBase + cur_oproc_ptr->isym);
+
+ if ((st_t)sym_ptr->st == st_Proc
+ || (st_t)sym_ptr->st == st_StaticProc)
+ {
+ AUXU *aptr = ORIG_AUX (orig_fdr->iauxBase + sym_ptr->index);
+ symint_t end_index = aptr->isym;
+ value = (ORIG_LSYMS (orig_fdr->isymBase + end_index - 1))->value;
+ }
+ }
+
+ (void) add_local_symbol (start_func,
+ end_func_p1,
+ st_End,
+ sc_Text,
+ value,
+ (symint_t)0);
+
+ cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
+}
+
+\f
+/* Parse .ent directives. */
+
+STATIC void
+parse_ent (start)
+ const char *start; /* start of directive */
+{
+ register const char *start_func, *end_func_p1;
+ register int ch;
+
+ if (cur_file_ptr == (efdr_t *)0)
+ {
+ error (".ent directive without a preceeding .file directive");
+ return;
+ }
+
+ if (cur_proc_ptr != (PDR *)0)
+ {
+ error ("second .ent directive found before .end directive");
+ return;
+ }
+
+ for (start_func = start; isspace (*start_func); start_func++)
+ ;
+
+ ch = *start_func;
+ if (!IS_ASM_IDENT (ch))
+ {
+ error (".ent directive has no name");
+ return;
+ }
+
+ for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
+ ;
+
+ (void) add_procedure (start_func, end_func_p1);
+}
+
+\f
+/* Parse .file directives. */
+
+STATIC void
+parse_file (start)
+ const char *start; /* start of directive */
+{
+ char *p;
+ register char *start_name, *end_name_p1;
+
+ (void) strtol (start, &p, 0);
+ if (start == p
+ || (start_name = strchr (p, '"')) == (char *)0
+ || (end_name_p1 = strrchr (++start_name, '"')) == (char *)0)
+ {
+ error ("Illegal .file directive");
+ return;
+ }
+
+ if (cur_proc_ptr != (PDR *)0)
+ {
+ error ("No way to handle .file within .ent/.end section");
+ return;
+ }
+
+ add_file (start_name, end_name_p1);
+}
+
+\f
+/* Parse the input file, and write the lines to the output file
+ if needed. */
+
+STATIC void
+parse_input __proto((void))
+{
+ register char *p;
+ register int i;
+ register thead_t *ptag_head;
+ register tag_t *ptag;
+ register tag_t *ptag_next;
+
+ if (debug)
+ fprintf (stderr, "\tinput\n");
+
+ /* Add a dummy scope block around the entire compilation unit for
+ structures defined outside of blocks. */
+ ptag_head = (thead_t *) allocate_word8 ();
+ ptag_head->first_tag = 0;
+ ptag_head->prev = cur_tag_head;
+ cur_tag_head = ptag_head;
+
+ while ((p = read_line ()) != (char *)0)
+ {
+ /* Skip leading blanks */
+ while (isspace (*p))
+ p++;
+
+ /* See if it's a directive we handle. If so, dispatch handler. */
+ for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
+ if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
+ && isspace (p[pseudo_ops[i].len]))
+ {
+ p += pseudo_ops[i].len; /* skip to first argument */
+ while (isspace (*p))
+ p++;
+
+ (*pseudo_ops[i].func)( p );
+ break;
+ }
+ }
+
+ /* Process any tags at global level. */
+ ptag_head = cur_tag_head;
+ cur_tag_head = ptag_head->prev;
+
+ for (ptag = ptag_head->first_tag;
+ ptag != (tag_t *)0;
+ ptag = ptag_next)
+ {
+ if (ptag->forward_ref != (forward_t *)0)
+ add_unknown_tag (ptag);
+
+ ptag_next = ptag->same_block;
+ ptag->hash_ptr->tag_ptr = ptag->same_name;
+ free_word8 ((word8_t *) ptag);
+ }
+
+ free_word8 ((word8_t *) ptag_head);
+
+}
+
+\f
+/* Update the global headers with the final offsets in preparation
+ to write out the .T file. */
+
+STATIC void
+update_headers __proto((void))
+{
+ register symint_t i;
+ register efdr_t *file_ptr;
+
+ /* Set up the symbolic header. */
+ file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
+ symbolic_header.magic = orig_sym_hdr.magic;
+ symbolic_header.vstamp = orig_sym_hdr.vstamp;
+
+ /* Set up global counts. */
+ symbolic_header.issExtMax = ext_strings.num_allocated;
+ symbolic_header.idnMax = dense_num.num_allocated;
+ symbolic_header.ifdMax = file_desc.num_allocated;
+ symbolic_header.iextMax = ext_symbols.num_allocated;
+ symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
+ symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
+ symbolic_header.cbLine = orig_sym_hdr.cbLine;
+ symbolic_header.crfd = orig_sym_hdr.crfd;
+
+
+ /* Loop through each file, figuring out how many local syms,
+ line numbers, etc. there are. Also, put out end symbol
+ for the filename. */
+
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ cur_file_ptr = file_ptr;
+ (void) add_local_symbol ((const char *)0,
+ (const char *)0,
+ st_End,
+ sc_Text,
+ (symint_t)0,
+ (symint_t)0);
+
+ file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
+ file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
+ symbolic_header.ipdMax += file_ptr->fdr.cpd;
+
+ file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
+ file_ptr->fdr.isymBase = symbolic_header.isymMax;
+ symbolic_header.isymMax += file_ptr->fdr.csym;
+
+ file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
+ file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
+ symbolic_header.iauxMax += file_ptr->fdr.caux;
+
+ file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
+ file_ptr->fdr.issBase = symbolic_header.issMax;
+ symbolic_header.issMax += file_ptr->fdr.cbSs;
+ }
+
+
+ i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
+ if (i > 0)
+ {
+ symbolic_header.cbLineOffset = file_offset;
+ file_offset += i;
+ }
+
+ i = symbolic_header.ioptMax; /* optimization symbols */
+ if (((long) i) > 0)
+ {
+ symbolic_header.cbOptOffset = file_offset;
+ file_offset += i * sizeof (OPTR);
+ }
+
+ i = symbolic_header.idnMax; /* dense numbers */
+ if (i > 0)
+ {
+ symbolic_header.cbDnOffset = file_offset;
+ file_offset += i * sizeof (DNR);
+ }
+
+ i = symbolic_header.ipdMax; /* procedure tables */
+ if (i > 0)
+ {
+ symbolic_header.cbPdOffset = file_offset;
+ file_offset += i * sizeof (PDR);
+ }
+
+ i = symbolic_header.isymMax; /* local symbols */
+ if (i > 0)
+ {
+ symbolic_header.cbSymOffset = file_offset;
+ file_offset += i * sizeof (SYMR);
+ }
+
+ i = symbolic_header.iauxMax; /* aux syms. */
+ if (i > 0)
+ {
+ symbolic_header.cbAuxOffset = file_offset;
+ file_offset += i * sizeof (TIR);
+ }
+
+ i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
+ if (i > 0)
+ {
+ symbolic_header.cbSsOffset = file_offset;
+ file_offset += i;
+ }
+
+ i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
+ if (i > 0)
+ {
+ symbolic_header.cbSsExtOffset = file_offset;
+ file_offset += i;
+ }
+
+ i = symbolic_header.ifdMax; /* file tables */
+ if (i > 0)
+ {
+ symbolic_header.cbFdOffset = file_offset;
+ file_offset += i * sizeof (FDR);
+ }
+
+ i = symbolic_header.crfd; /* relative file descriptors */
+ if (i > 0)
+ {
+ symbolic_header.cbRfdOffset = file_offset;
+ file_offset += i * sizeof (symint_t);
+ }
+
+ i = symbolic_header.iextMax; /* external symbols */
+ if (i > 0)
+ {
+ symbolic_header.cbExtOffset = file_offset;
+ file_offset += i * sizeof (EXTR);
+ }
+}
+
+\f
+/* Write out a varray at a given location. */
+
+STATIC void
+write_varray (vp, offset, str)
+ varray_t *vp; /* virtual array */
+ off_t offset; /* offset to write varray to */
+ const char *str; /* string to print out when tracing */
+{
+ int num_write, sys_write;
+ vlinks_t *ptr;
+
+ if (vp->num_allocated == 0)
+ return;
+
+ if (debug)
+ fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
+ vp, offset, vp->num_allocated * vp->object_size, str);
+
+ if (file_offset != offset
+ && fseek (object_stream, (long)offset, SEEK_SET) < 0)
+ pfatal_with_name (object_name);
+
+ for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
+ {
+ num_write = (ptr->next == (vlinks_t *)0)
+ ? vp->objects_last_page * vp->object_size
+ : vp->objects_per_page * vp->object_size;
+
+ sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
+ if (sys_write <= 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != num_write)
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ num_write,
+ object_name,
+ sys_write);
+
+ file_offset += num_write;
+ }
+}
+
+\f
+/* Write out the symbol table in the object file. */
+
+STATIC void
+write_object __proto((void))
+{
+ int sys_write;
+ efdr_t *file_ptr;
+ off_t offset;
+
+ if (debug)
+ fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
+ (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
+ "symbolic header");
+
+ sys_write = fwrite ((PTR_T) &symbolic_header,
+ 1,
+ sizeof (symbolic_header),
+ object_stream);
+
+ if (sys_write < 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != sizeof (symbolic_header))
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ sizeof (symbolic_header),
+ object_name,
+ sys_write);
+
+
+ file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
+
+ if (symbolic_header.cbLine > 0) /* line numbers */
+ {
+ long sys_write;
+
+ if (file_offset != symbolic_header.cbLineOffset
+ && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
+ pfatal_with_name (object_name);
+
+ if (debug)
+ fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
+ (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
+ symbolic_header.cbLine, "Line numbers");
+
+ sys_write = fwrite ((PTR_T) orig_linenum,
+ 1,
+ symbolic_header.cbLine,
+ object_stream);
+
+ if (sys_write <= 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != symbolic_header.cbLine)
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ symbolic_header.cbLine,
+ object_name,
+ sys_write);
+
+ file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
+ }
+
+ if (symbolic_header.ioptMax > 0) /* optimization symbols */
+ {
+ long sys_write;
+ long num_write = symbolic_header.ioptMax * sizeof (OPTR);
+
+ if (file_offset != symbolic_header.cbOptOffset
+ && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
+ pfatal_with_name (object_name);
+
+ if (debug)
+ fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
+ (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
+ num_write, "Optimizer symbols");
+
+ sys_write = fwrite ((PTR_T) orig_opt_syms,
+ 1,
+ num_write,
+ object_stream);
+
+ if (sys_write <= 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != num_write)
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ num_write,
+ object_name,
+ sys_write);
+
+ file_offset = symbolic_header.cbOptOffset + num_write;
+ }
+
+ if (symbolic_header.idnMax > 0) /* dense numbers */
+ write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
+
+ if (symbolic_header.ipdMax > 0) /* procedure tables */
+ {
+ offset = symbolic_header.cbPdOffset;
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ write_varray (&file_ptr->procs, offset, "Procedure tables");
+ offset = file_offset;
+ }
+ }
+
+ if (symbolic_header.isymMax > 0) /* local symbols */
+ {
+ offset = symbolic_header.cbSymOffset;
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ write_varray (&file_ptr->symbols, offset, "Local symbols");
+ offset = file_offset;
+ }
+ }
+
+ if (symbolic_header.iauxMax > 0) /* aux symbols */
+ {
+ offset = symbolic_header.cbAuxOffset;
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
+ offset = file_offset;
+ }
+ }
+
+ if (symbolic_header.issMax > 0) /* local strings */
+ {
+ offset = symbolic_header.cbSsOffset;
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ write_varray (&file_ptr->strings, offset, "Local strings");
+ offset = file_offset;
+ }
+ }
+
+ if (symbolic_header.issExtMax > 0) /* external strings */
+ write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
+
+ if (symbolic_header.ifdMax > 0) /* file tables */
+ {
+ offset = symbolic_header.cbFdOffset;
+ if (file_offset != offset
+ && fseek (object_stream, (long)offset, SEEK_SET) < 0)
+ pfatal_with_name (object_name);
+
+ file_offset = offset;
+ for (file_ptr = first_file;
+ file_ptr != (efdr_t *)0;
+ file_ptr = file_ptr->next_file)
+ {
+ if (debug)
+ fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
+ (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
+
+ sys_write = fwrite (&file_ptr->fdr,
+ 1,
+ sizeof (FDR),
+ object_stream);
+
+ if (sys_write < 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != sizeof (FDR))
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ sizeof (FDR),
+ object_name,
+ sys_write);
+
+ file_offset = offset += sizeof (FDR);
+ }
+ }
+
+ if (symbolic_header.crfd > 0) /* relative file descriptors */
+ {
+ long sys_write;
+ symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
+
+ if (file_offset != symbolic_header.cbRfdOffset
+ && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
+ pfatal_with_name (object_name);
+
+ if (debug)
+ fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
+ (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
+ num_write, "Relative file descriptors");
+
+ sys_write = fwrite (orig_rfds,
+ 1,
+ num_write,
+ object_stream);
+
+ if (sys_write <= 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != num_write)
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ num_write,
+ object_name,
+ sys_write);
+
+ file_offset = symbolic_header.cbRfdOffset + num_write;
+ }
+
+ if (symbolic_header.issExtMax > 0) /* external symbols */
+ write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
+
+ if (fclose (object_stream) != 0)
+ pfatal_with_name (object_name);
+}
+
+\f
+/* Read some bytes at a specified location, and return a pointer. */
+
+STATIC page_t *
+read_seek (size, offset, str)
+ Size_t size; /* # bytes to read */
+ off_t offset; /* offset to read at */
+ const char *str; /* name for tracing */
+{
+ page_t *ptr;
+ long sys_read = 0;
+
+ if (size == 0) /* nothing to read */
+ return (page_t *)0;
+
+ if (debug)
+ fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
+ size, offset, file_offset, str);
+
+#ifndef MALLOC_CHECK
+ ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
+#else
+ ptr = (page_t *) xcalloc (1, size);
+#endif
+
+ /* If we need to seek, and the distance is nearby, just do some reads,
+ to speed things up. */
+ if (file_offset != offset)
+ {
+ symint_t difference = offset - file_offset;
+
+ if (difference < 8)
+ {
+ char small_buffer[8];
+
+ sys_read = fread (small_buffer, 1, difference, obj_in_stream);
+ if (sys_read <= 0)
+ pfatal_with_name (obj_in_name);
+
+ if (sys_read != difference)
+ fatal ("Wanted to read %d bytes from %s, system returned %d",
+ size,
+ sys_read,
+ obj_in_name);
+ }
+ else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
+ pfatal_with_name (obj_in_name);
+ }
+
+ sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
+ if (sys_read <= 0)
+ pfatal_with_name (obj_in_name);
+
+ if (sys_read != size)
+ fatal ("Wanted to read %d bytes from %s, system returned %d",
+ size,
+ sys_read,
+ obj_in_name);
+
+ file_offset = offset + size;
+
+ if (file_offset > max_file_offset)
+ max_file_offset = file_offset;
+
+ return ptr;
+}
+
+\f
+/* Read the existing object file (and copy to the output object file
+ if it is different from the input object file), and remove the old
+ symbol table. */
+
+STATIC void
+copy_object __proto((void))
+{
+ char buffer[ PAGE_SIZE ];
+ register int sys_read;
+ register int remaining;
+ register int num_write;
+ register int sys_write;
+ register int fd, es;
+ register int delete_ifd = 0;
+ struct stat stat_buf;
+
+ if (debug)
+ fprintf (stderr, "\tcopy\n");
+
+ if (fstat (fileno (obj_in_stream), &stat_buf) != 0
+ || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
+ pfatal_with_name (obj_in_name);
+
+ sys_read = fread ((PTR_T) &orig_file_header,
+ 1,
+ sizeof (struct filehdr),
+ obj_in_stream);
+
+ if (sys_read < 0)
+ pfatal_with_name (obj_in_name);
+
+ else if (sys_read == 0 && feof (obj_in_stream))
+ return; /* create a .T file sans file header */
+
+ else if (sys_read < sizeof (struct filehdr))
+ fatal ("Wanted to read %d bytes from %s, system returned %d",
+ sizeof (struct filehdr),
+ obj_in_name,
+ sys_read);
+
+
+ if (orig_file_header.f_flags != 0)
+ fatal ("Non-zero flags encountered in %s filehdr", input_name);
+
+ if (orig_file_header.f_nsyms != sizeof (HDRR))
+ fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
+ input_name, orig_file_header.f_nsyms, sizeof (HDRR));
+
+
+ /* Read in the current symbolic header. */
+ if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
+ pfatal_with_name (input_name);
+
+ sys_read = fread ((PTR_T) &orig_sym_hdr,
+ 1,
+ sizeof (orig_sym_hdr),
+ obj_in_stream);
+
+ if (sys_read < 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_read < sizeof (struct filehdr))
+ fatal ("Wanted to read %d bytes from %s, system returned %d",
+ sizeof (struct filehdr),
+ obj_in_name,
+ sys_read);
+
+
+ /* Read in each of the sections if they exist in the object file.
+ We read things in in the order the mips assembler creates the
+ sections, so in theory no extra seeks are done.
+
+ For simplicity sake, round each read up to a page boundary,
+ we may want to revisit this later.... */
+
+ file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
+
+ if (orig_sym_hdr.cbLine > 0) /* line numbers */
+ orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
+ orig_sym_hdr.cbLineOffset,
+ "Line numbers");
+
+ if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
+ orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
+ orig_sym_hdr.cbPdOffset,
+ "Procedure tables");
+
+ if (orig_sym_hdr.isymMax > 0) /* local symbols */
+ orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
+ orig_sym_hdr.cbSymOffset,
+ "Local symbols");
+
+ if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
+ orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
+ orig_sym_hdr.cbAuxOffset,
+ "Aux. symbols");
+
+ if (orig_sym_hdr.issMax > 0) /* local strings */
+ orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
+ orig_sym_hdr.cbSsOffset,
+ "Local strings");
+
+ if (orig_sym_hdr.issExtMax > 0) /* external strings */
+ orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
+ orig_sym_hdr.cbSsExtOffset,
+ "External strings");
+
+ if (orig_sym_hdr.ifdMax > 0) /* file tables */
+ orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
+ orig_sym_hdr.cbFdOffset,
+ "File tables");
+
+ if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
+ orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
+ orig_sym_hdr.cbRfdOffset,
+ "Relative file descriptors");
+
+ if (orig_sym_hdr.issExtMax > 0) /* external symbols */
+ orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
+ orig_sym_hdr.cbExtOffset,
+ "External symbols");
+
+ if (orig_sym_hdr.idnMax > 0) /* dense numbers */
+ {
+ orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
+ orig_sym_hdr.cbDnOffset,
+ "Dense numbers");
+
+ add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
+ }
+
+ if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
+ orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
+ orig_sym_hdr.cbOptOffset,
+ "Optimizer symbols");
+
+
+
+ /* Abort if the symbol table is not last. */
+ if (max_file_offset != stat_buf.st_size)
+ fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
+ max_file_offset,
+ stat_buf.st_size);
+
+
+ /* If the first original file descriptor is a dummy which the assembler
+ put out, but there are no symbols in it, skip it now. */
+ if (orig_sym_hdr.ifdMax > 1
+ && orig_files->csym == 2
+ && orig_files->caux == 0)
+ {
+ char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
+ char *suffix = strrchr (filename, '.');
+
+ if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
+ delete_ifd = 1;
+ }
+
+
+ /* Loop, adding each of the external symbols. These must be in
+ order or otherwise we would have to change the relocation
+ entries. We don't just call add_bytes, because we need to have
+ the names put into the external hash table. We set the type to
+ 'void' for now, and parse_def will fill in the correct type if it
+ is in the symbol table. */
+
+ if (debug)
+ fprintf (stderr, "\tehash\n");
+
+ for (es = 0; es < orig_sym_hdr.iextMax; es++)
+ {
+ register EXTR *eptr = orig_ext_syms + es;
+ register char *ename = ORIG_ESTRS (eptr->asym.iss);
+
+ (void) add_ext_symbol (ename,
+ ename + strlen (ename),
+ (st_t) eptr->asym.st,
+ (sc_t) eptr->asym.sc,
+ eptr->asym.value,
+ (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
+ eptr->ifd - delete_ifd);
+ }
+
+
+ /* For each of the files in the object file, copy the symbols, and such
+ into the varrays for the new object file. */
+
+ for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
+ {
+ register FDR *fd_ptr = ORIG_FILES (fd);
+ register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
+ register SYMR *sym_start;
+ register SYMR *sym;
+ register SYMR *sym_end_p1;
+ register PDR *proc_start;
+ register PDR *proc;
+ register PDR *proc_end_p1;
+
+ /* file support itself. */
+ add_file (filename, filename + strlen (filename));
+ cur_file_ptr->orig_fdr = fd_ptr;
+
+ /* Copy stuff that's just passed through (such as line #'s) */
+ cur_file_ptr->fdr.adr = fd_ptr->adr;
+ cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
+ cur_file_ptr->fdr.cline = fd_ptr->cline;
+ cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
+ cur_file_ptr->fdr.crfd = fd_ptr->crfd;
+ cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
+ cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
+ cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
+ cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
+ cur_file_ptr->fdr.glevel = fd_ptr->glevel;
+
+ if (debug)
+ fprintf (stderr, "\thash\tstart, filename %s\n", filename);
+
+ /* For each of the static and global symbols defined, add them
+ to the hash table of original symbols, so we can look up
+ their values. */
+
+ sym_start = ORIG_LSYMS (fd_ptr->isymBase);
+ sym_end_p1 = sym_start + fd_ptr->csym;
+ for (sym = sym_start; sym < sym_end_p1; sym++)
+ {
+ switch ((st_t) sym->st)
+ {
+ default:
+ break;
+
+ case st_Global:
+ case st_Static:
+ case st_Label:
+ case st_Proc:
+ case st_StaticProc:
+ {
+ auto symint_t hash_index;
+ register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
+ register Size_t len = strlen (str);
+ register shash_t *shash_ptr = hash_string (str,
+ (Ptrdiff_t)len,
+ &orig_str_hash[0],
+ &hash_index);
+
+ if (shash_ptr != (shash_t *)0)
+ error ("internal error, %s is already in original symbol table", str);
+
+ else
+ {
+ shash_ptr = (shash_t *) allocate_word8 ();
+ shash_ptr->next = orig_str_hash[hash_index];
+ orig_str_hash[hash_index] = shash_ptr;
+
+ shash_ptr->len = len;
+ shash_ptr->index = indexNil;
+ shash_ptr->string = str;
+ shash_ptr->sym_ptr = sym;
+ }
+ }
+ }
+ }
+
+ if (debug)
+ {
+ fprintf (stderr, "\thash\tdone, filename %s\n", filename);
+ fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
+ }
+
+ /* Go through each of the procedures in this file, and add the
+ procedure pointer to the hash entry for the given name. */
+
+ proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
+ proc_end_p1 = proc_start + fd_ptr->cpd;
+ for (proc = proc_start; proc < proc_end_p1; proc++)
+ {
+ register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
+ register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
+ register Size_t len = strlen (str);
+ register shash_t *shash_ptr = hash_string (str,
+ (Ptrdiff_t)len,
+ &orig_str_hash[0],
+ (symint_t *)0);
+
+ if (shash_ptr == (shash_t *)0)
+ error ("internal error, function %s is not in original symbol table", str);
+
+ else
+ shash_ptr->proc_ptr = proc;
+ }
+
+ if (debug)
+ fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
+
+ }
+ cur_file_ptr = first_file;
+
+
+ /* Copy all of the object file up to the symbol table. Originally
+ we were going to use ftruncate, but that doesn't seem to work
+ on Ultrix 3.1.... */
+
+ if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
+ pfatal_with_name (obj_in_name);
+
+ if (fseek (object_stream, (long)0, SEEK_SET) != 0)
+ pfatal_with_name (object_name);
+
+ for (remaining = orig_file_header.f_symptr;
+ remaining > 0;
+ remaining -= num_write)
+ {
+ num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
+ sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
+ if (sys_read <= 0)
+ pfatal_with_name (obj_in_name);
+
+ else if (sys_read != num_write)
+ fatal ("Wanted to read %d bytes from %s, system returned %d",
+ num_write,
+ obj_in_name,
+ sys_read);
+
+ sys_write = fwrite (buffer, 1, num_write, object_stream);
+ if (sys_write <= 0)
+ pfatal_with_name (object_name);
+
+ else if (sys_write != num_write)
+ fatal ("Wrote %d bytes to %s, system returned %d",
+ num_write,
+ object_name,
+ sys_write);
+ }
+}
+
+\f
+/* Ye olde main program. */
+
+int
+main (argc, argv)
+ int argc;
+ char *argv[];
+{
+ int iflag = 0;
+ char *p = strrchr (argv[0], '/');
+ char *num_end;
+ int option;
+
+ progname = (p != 0) ? p+1 : argv[0];
+
+ (void) signal (SIGSEGV, catch_signal);
+ (void) signal (SIGBUS, catch_signal);
+ (void) signal (SIGABRT, catch_signal);
+
+#if !defined(__SABER__) && !defined(lint)
+ if (sizeof (efdr_t) > PAGE_USIZE)
+ fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
+ sizeof (efdr_t),
+ PAGE_USIZE);
+
+ if (sizeof (page_t) != PAGE_USIZE)
+ fatal ("Page_t has a sizeof %d bytes, when it should be %d",
+ sizeof (page_t),
+ PAGE_USIZE);
+
+ if (sizeof (word8_t) != 8 * sizeof (symint_t))
+ fatal ("Word8_t has a sizeof %d bytes, when it should be %d",
+ sizeof (word8_t),
+ 8 * sizeof (symint_t));
+#endif
+
+ int_type_info = type_info_init;
+ int_type_info.basic_type = bt_Int;
+
+ void_type_info = type_info_init;
+ void_type_info.basic_type = bt_Void;
+
+ while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
+ switch (option)
+ {
+ default:
+ had_errors++;
+ break;
+
+ case 'd':
+ debug = strtol (optarg, &num_end, 0);
+ if ((unsigned)debug > 4 || num_end == optarg)
+ had_errors++;
+
+ break;
+
+ case 'I':
+ if (rename_output || obj_in_name != (char *)0)
+ had_errors++;
+ else
+ rename_output = 1;
+
+ /* fall through to 'i' case. */
+
+ case 'i':
+ if (obj_in_name == (char *)0)
+ {
+ obj_in_name = optarg;
+ iflag++;
+ }
+ else
+ had_errors++;
+ break;
+
+ case 'o':
+ if (object_name == (char *)0)
+ object_name = optarg;
+ else
+ had_errors++;
+ break;
+
+ case 'v':
+ version++;
+ break;
+ }
+
+ if (obj_in_name == (char *)0 && optind <= argc - 2)
+ obj_in_name = argv[--argc];
+
+ if (object_name == (char *)0 && optind <= argc - 2)
+ object_name = argv[--argc];
+
+ /* If there is an output name, but no input name use
+ the same file for both, deleting the name between
+ opening it for input and opening it for output. */
+ if (obj_in_name == (char *)0 && object_name != (char *)0)
+ {
+ obj_in_name = object_name;
+ delete_input = 1;
+ }
+
+ if (object_name == (char *)0 || had_errors || optind != argc - 1)
+ {
+ fprintf (stderr, "Calling Sequence:\n");
+ fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
+ fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
+ fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
+ fprintf (stderr, "\n");
+ fprintf (stderr, "Debug levels are:\n");
+ fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
+ fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
+ fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
+ fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
+ return 1;
+ }
+
+
+ if (version)
+ {
+ extern char *version_string;
+ fprintf (stderr, "mips-tfile version %s", version_string);
+#ifdef TARGET_VERSION
+ TARGET_VERSION;
+#endif
+ fputc ('\n', stderr);
+ }
+
+ if (obj_in_name == (char *)0)
+ obj_in_name = object_name;
+
+ if (rename_output && rename (object_name, obj_in_name) != 0)
+ {
+ char *buffer = (char *) allocate_multiple_pages (4);
+ int len;
+ int len2;
+ int in_fd;
+ int out_fd;
+
+ /* Rename failed, copy input file */
+ in_fd = open (object_name, O_RDONLY, 0666);
+ if (in_fd < 0)
+ pfatal_with_name (object_name);
+
+ out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (out_fd < 0)
+ pfatal_with_name (obj_in_name);
+
+ while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
+ {
+ len2 = write (out_fd, buffer, len);
+ if (len2 < 0)
+ pfatal_with_name (object_name);
+
+ if (len != len2)
+ fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
+ }
+
+ free_multiple_pages (buffer, 4);
+
+ if (len < 0)
+ pfatal_with_name (object_name);
+
+ if (close (in_fd) < 0)
+ pfatal_with_name (object_name);
+
+ if (close (out_fd) < 0)
+ pfatal_with_name (obj_in_name);
+ }
+
+ /* Must open input before output, since the output may be the same file, and
+ we need to get the input handle before truncating it. */
+ obj_in_stream = fopen (obj_in_name, "r");
+ if (obj_in_stream == (FILE *)0)
+ pfatal_with_name (obj_in_name);
+
+ if (delete_input && unlink (obj_in_name) != 0)
+ pfatal_with_name (obj_in_name);
+
+ object_stream = fopen (object_name, "w");
+ if (object_stream == (FILE *)0)
+ pfatal_with_name (object_name);
+
+ if (strcmp (argv[optind], "-") != 0)
+ {
+ input_name = argv[optind];
+ if (freopen (argv[optind], "r", stdin) != stdin)
+ pfatal_with_name (argv[optind]);
+ }
+
+
+#ifdef _IOFBF
+ /* Try to prevent stdio from malloc'ing memory for the buffers. At the
+ same time, increase the size of mips' stdio buffers. */
+
+ setvbuf (object_stream, (char *) allocate_multiple_pages (2), _IOFBF, 2*PAGE_SIZE);
+ setvbuf (obj_in_stream, (char *) allocate_multiple_pages (2), _IOFBF, 2*PAGE_SIZE);
+ setvbuf (stdin, (char *) allocate_multiple_pages (2), _IOFBF, 2*PAGE_SIZE);
+ setvbuf (stdout, (char *) allocate_multiple_pages (2), _IOFBF, 2*PAGE_SIZE);
+ setvbuf (stderr, (char *) allocate_multiple_pages (2), _IOLBF, 2*PAGE_SIZE);
+#endif
+
+ copy_object (); /* scan & copy object file */
+ parse_input (); /* scan all of input */
+
+ update_headers (); /* write out tfile */
+ write_object ();
+
+ return (had_errors) ? 1 : 0;
+}
+
+\f
+/* Catch a signal and exit without dumping core. */
+
+STATIC void
+catch_signal (signum)
+ int signum;
+{
+ extern char *sys_siglist[NSIG + 1];
+
+ (void) signal (signum, SIG_DFL); /* just in case... */
+ fatal (sys_siglist[signum]);
+}
+
+/* Print a fatal error message. NAME is the text.
+ Also include a system error message based on `errno'. */
+
+void
+pfatal_with_name (msg)
+ char *msg;
+{
+ int save_errno = errno; /* just in case.... */
+ if (line_number > 0)
+ fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
+ else
+ fprintf (stderr, "%s:", progname);
+
+ errno = save_errno;
+ if (errno == 0)
+ fprintf (stderr, "[errno = 0] %s\n", msg);
+ else
+ perror (msg);
+
+ exit (1);
+}
+
+\f
+/* Procedure to abort with an out of bounds error message. It has
+ type int, so it can be used with an ?: expression within the
+ ORIG_xxx macros, but the function never returns. */
+
+static int
+out_of_bounds (index, max, str, prog_line)
+ symint_t index; /* index that is out of bounds */
+ symint_t max; /* maximum index */
+ const char *str; /* string to print out */
+ int prog_line; /* line number within mips-tfile.c */
+{
+ if (index < max) /* just in case */
+ return 0;
+
+ fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
+ progname, input_name, line_number, index, str, max, prog_line);
+
+ exit (1);
+ return 0; /* turn off warning messages */
+}
+
+\f
+/* Allocate a cluster of pages. USE_MALLOC says that malloc does not
+ like sbrk's behind it's back (or sbrk isn't available). If we use
+ sbrk, we assume it gives us zeroed pages. */
+
+#ifndef MALLOC_CHECK
+#ifdef USE_MALLOC
+
+STATIC page_t *
+allocate_cluster (npages)
+ Size_t npages;
+{
+ register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
+
+ if (value == 0)
+ fatal ("Virtual memory exhausted.");
+
+ if (debug > 3)
+ fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
+
+ return value;
+}
+
+#else /* USE_MALLOC */
+
+STATIC page_t *
+allocate_cluster (npages)
+ Size_t npages;
+{
+ register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
+ unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
+
+ if (offset != 0) /* align to a page boundary */
+ {
+ if (sbrk (PAGE_USIZE - offset) == (char *)-1)
+ pfatal_with_name ("allocate_cluster");
+
+ ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
+ }
+
+ if (sbrk (npages * PAGE_USIZE) == (char *)-1)
+ pfatal_with_name ("allocate_cluster");
+
+ if (debug > 3)
+ fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
+
+ return ptr;
+}
+
+#endif /* USE_MALLOC */
+
+
+static page_t *cluster_ptr = NULL;
+static unsigned pages_left = 0;
+
+#endif /* MALLOC_CHECK */
+
+
+/* Allocate some pages (which is initialized to 0). */
+
+STATIC page_t *
+allocate_multiple_pages (npages)
+ Size_t npages;
+{
+#ifndef MALLOC_CHECK
+ if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
+ {
+ pages_left = MAX_CLUSTER_PAGES;
+ cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
+ }
+
+ if (npages <= pages_left)
+ {
+ page_t *ptr = cluster_ptr;
+ cluster_ptr += npages;
+ pages_left -= npages;
+ return ptr;
+ }
+
+ return allocate_cluster (npages);
+
+#else /* MALLOC_CHECK */
+ return (page_t *) xcalloc (npages, PAGE_SIZE);
+
+#endif /* MALLOC_CHECK */
+}
+
+
+/* Release some pages. */
+
+STATIC void
+free_multiple_pages (page_ptr, npages)
+ page_t *page_ptr;
+ Size_t npages;
+{
+#ifndef MALLOC_CHECK
+ if (pages_left == 0)
+ {
+ cluster_ptr = page_ptr;
+ pages_left = npages;
+ }
+
+ else if ((page_ptr + npages) == cluster_ptr)
+ {
+ cluster_ptr -= npages;
+ pages_left += npages;
+ }
+
+ /* otherwise the page is not freed. If more than call is
+ done, we probably should worry about it, but at present,
+ the free pages is done right after an allocate. */
+
+#else /* MALLOC_CHECK */
+ free ((char *) page_ptr);
+
+#endif /* MALLOC_CHECK */
+}
+
+
+/* Allocate one page (which is initialized to 0). */
+
+STATIC page_t *
+allocate_page __proto((void))
+{
+#ifndef MALLOC_CHECK
+ if (pages_left == 0)
+ {
+ pages_left = MAX_CLUSTER_PAGES;
+ cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
+ }
+
+ pages_left--;
+ return cluster_ptr++;
+
+#else /* MALLOC_CHECK */
+ return (page_t *) xcalloc (1, PAGE_SIZE);
+
+#endif /* MALLOC_CHECK */
+}
+
+\f
+/* Allocate and release 4 word quanities. */
+
+#ifndef MALLOC_CHECK
+static word8_t *word8_free_list = (word8_t *)0;
+#endif
+
+STATIC word8_t *
+allocate_word8 __proto((void))
+{
+#ifndef MALLOC_CHECK
+ register word8_t *ptr = word8_free_list;
+ if (ptr != (word8_t *)0)
+ word8_free_list = ptr->prev;
+ else
+ {
+ register int i;
+ register page_t *page_ptr;
+
+ page_ptr = allocate_page ();
+ ptr = &page_ptr->word8[0];
+ for (i = 0; i < (PAGE_SIZE / sizeof (word8_t)) - 1; i++)
+ {
+ ptr->prev = word8_free_list;
+ word8_free_list = ptr;
+ ptr++;
+ }
+ }
+
+ ptr->words[0] = 0;
+ ptr->words[1] = 0;
+ ptr->words[2] = 0;
+ ptr->words[3] = 0;
+ ptr->words[4] = 0;
+ ptr->words[5] = 0;
+ ptr->words[6] = 0;
+ ptr->words[7] = 0;
+ return ptr;
+
+#else /* MALLOC_CHECK */
+ return (word8_t *) xcalloc (1, sizeof (word8_t));
+
+#endif /* MALLOC_CHECK */
+}
+
+STATIC void
+free_word8 (ptr)
+ word8_t *ptr;
+{
+#ifndef MALLOC_CHECK
+ ptr->prev = word8_free_list;
+ word8_free_list = ptr;
+
+#else /* MALLOC_CHECK */
+ xfree ((PTR_T)ptr);
+
+#endif /* MALLOC_CHECK */
+}
+
+#endif /* MIPS_DEBUGGING defined */
+
+\f
+/* Output an error message and exit */
+
+/*VARARGS*/
+void
+fatal (va_alist)
+ va_dcl
+{
+ va_list ap;
+ char *format;
+
+ if (line_number > 0)
+ fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
+ else
+ fprintf (stderr, "%s:", progname);
+
+ va_start(ap);
+ format = va_arg (ap, char *);
+ vfprintf (stderr, format, ap);
+ va_end (ap);
+ fprintf (stderr, "\n");
+ if (line_number > 0)
+ fprintf (stderr, "line:\t%s\n", cur_line_start);
+
+ saber_stop ();
+ exit (1);
+}
+
+/*VARARGS*/
+void
+error (va_alist)
+ va_dcl
+{
+ va_list ap;
+ char *format;
+
+ if (line_number > 0)
+ fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
+ else
+ fprintf (stderr, "%s:", progname);
+
+ va_start(ap);
+ format = va_arg (ap, char *);
+ vfprintf (stderr, format, ap);
+ fprintf (stderr, "\n");
+ if (line_number > 0)
+ fprintf (stderr, "line:\t%s\n", cur_line_start);
+
+ had_errors++;
+ va_end (ap);
+
+ saber_stop ();
+}
+
+/* More 'friendly' abort that prints the line and file.
+ config.h can #define abort fancy_abort if you like that sort of thing. */
+
+void
+fancy_abort ()
+{
+ fatal ("Internal abort.");
+}
+\f
+
+/* When `malloc.c' is compiled with `rcheck' defined,
+ it calls this function to report clobberage. */
+
+void
+botch (s)
+ const char *s;
+{
+ fatal (s);
+}
+
+/* Same as `malloc' but report error if no memory available. */
+
+PTR_T
+xmalloc (size)
+ Size_t size;
+{
+ register PTR_T value = malloc (size);
+ if (value == 0)
+ fatal ("Virtual memory exhausted.");
+
+ if (debug > 3)
+ fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
+
+ return value;
+}
+
+/* Same as `calloc' but report error if no memory available. */
+
+PTR_T
+xcalloc (size1, size2)
+ Size_t size1, size2;
+{
+ register PTR_T value = calloc (size1, size2);
+ if (value == 0)
+ fatal ("Virtual memory exhausted.");
+
+ if (debug > 3)
+ fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
+ value, size1, size2, size1+size2);
+
+ return value;
+}
+
+/* Same as `realloc' but report error if no memory available. */
+
+PTR_T
+xrealloc (ptr, size)
+ PTR_T ptr;
+ Size_t size;
+{
+ register PTR_T result = realloc (ptr, size);
+ if (!result)
+ fatal ("Virtual memory exhausted.");
+
+ if (debug > 3)
+ fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
+ result, size, ptr);
+
+ return result;
+}
+
+void
+xfree (ptr)
+ PTR_T ptr;
+{
+ if (debug > 3)
+ fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
+
+ free (ptr);
+}
projects / thirdparty / gcc.git / commitdiff
