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/* 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).
Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by Michael Meissner (meissner@cygnus.com).
This file is part of GCC.
GCC 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 3, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* 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 indices 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 -- beginning 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
Auxiliary 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 }
*/
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "version.h"
#include "intl.h"
#ifndef __SABER__
#define saber_stop()
#endif
/* Include getopt.h for the sake of getopt_long. */
#include "getopt.h"
#ifndef __LINE__
#define __LINE__ 0
#endif
/* Due 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. */
#if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
#define Size_t long unsigned int
#else
#define Size_t unsigned int
#endif
#define Ptrdiff_t long
/* The following might be called from obstack or malloc,
so they can't be static. */
extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN;
extern void botch (const char *) ATTRIBUTE_NORETURN;
extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1;
#ifndef MIPS_DEBUGGING_INFO
static int line_number;
static int cur_line_start;
static int debug;
static int had_errors;
static const char *progname;
static const char *input_name;
int
main (void)
{
fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
exit (1);
}
#else /* MIPS_DEBUGGING defined */
/* The local and global symbols have a field index, so undo any defines
of index -> strchr. */
#undef index
#include <signal.h>
#ifndef CROSS_DIRECTORY_STRUCTURE
#include <a.out.h>
#else
#include "mips/a.out.h"
#endif /* CROSS_DIRECTORY_STRUCTURE */
#include "gstab.h"
#define STAB_CODE_TYPE enum __stab_debug_code
#ifndef MALLOC_CHECK
#ifdef __SABER__
#define MALLOC_CHECK
#endif
#endif
#define IS_ASM_IDENT(ch) \
(ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
/* Redefinition 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, /* beginning 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 (i.e. 4 NOR 2+2) */
st_Expr = stExpr, /* 2+2 vs. 4 */
st_Type = stType, /* post-coercion 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;
/* 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;
/* Types of different sized allocation requests. */
enum alloc_type {
alloc_type_none, /* dummy value */
alloc_type_scope, /* nested scopes linked list */
alloc_type_vlinks, /* glue linking pages in varray */
alloc_type_shash, /* string hash element */
alloc_type_thash, /* type hash element */
alloc_type_tag, /* struct/union/tag element */
alloc_type_forward, /* element to hold unknown tag */
alloc_type_thead, /* head of type hash list */
alloc_type_varray, /* general varray allocation */
alloc_type_last /* last+1 element for array bounds */
};
#define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
#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 its overhead, and rounds up to the next power of 2. Pages are
linked together via a linked list. */
#ifndef PAGE_SIZE
#define PAGE_SIZE 32768 /* 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 */ \
}
#define INITIALIZE_VARRAY(x,type) \
do { \
(x)->object_size = sizeof (type); \
(x)->objects_per_page = OBJECTS_PER_PAGE (type); \
(x)->objects_last_page = OBJECTS_PER_PAGE (type); \
} while (0)
/* 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 */
struct scope *free; /* free list pointer */
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 */
struct forward *free; /* free list pointer */
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 tag *free; /* free list pointer */
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 indx; /* 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 thead *free; /* free list pointer */
struct tag *first_tag; /* first tag in block defined */
} thead_t;
/* Union containing pointers to each the small structures which are freed up. */
typedef union small_free {
scope_t *f_scope; /* scope structure */
thead_t *f_thead; /* tag head structure */
tag_t *f_tag; /* tag element structure */
forward_t *f_forward; /* forward tag reference */
} small_free_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 indx; /* index within string table */
EXTR *esym_ptr; /* global symbol pointer */
SYMR *sym_ptr; /* local symbol pointer */
SYMR *end_ptr; /* symbol pointer to end block */
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 indx; /* index within string table */
} thash_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 int init_file_initialized = 0;
static efdr_t init_file;
static efdr_t *first_file; /* first file descriptor */
static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
/* 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) ];
scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
} page_t;
/* Structure holding allocation information for small sized structures. */
typedef struct alloc_info {
const char *alloc_name; /* name of this allocation type (must be first) */
page_t *cur_page; /* current page being allocated from */
small_free_t free_list; /* current free list if any */
int unallocated; /* number of elements unallocated on page */
int total_alloc; /* total number of allocations */
int total_free; /* total number of frees */
int total_pages; /* total number of pages allocated */
} alloc_info_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 const 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 const 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 const 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 const 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 */
};
/* Keep track of different sized allocation requests. */
static alloc_info_t alloc_counts[ (int) alloc_type_last ];
/* 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(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
#define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
#define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
#define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
#define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
#define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
#define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
#define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
#define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
#define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
#define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + 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 SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
static unsigned long file_offset = 0; /* current file offset */
static unsigned 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 const 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 verbose = 0;
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 */
static int stabs_seen = 0; /* != 0 if stabs have been seen */
/* Pseudo symbol to use when putting stabs into the symbol table. */
#ifndef STABS_SYMBOL
#define STABS_SYMBOL "@stabs"
#endif
static const char stabs_symbol[] = STABS_SYMBOL;
/* Forward reference for functions. See the definition for more details. */
#ifndef STATIC
#define STATIC static
#endif
STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
shash_t **);
STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
symint_t, symint_t);
STATIC symint_t add_ext_symbol (EXTR *, int);
STATIC symint_t add_aux_sym_symint (symint_t);
STATIC symint_t add_aux_sym_rndx (int, symint_t);
STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
STATIC void add_unknown_tag (tag_t *);
STATIC void add_procedure (const char *, const char *);
STATIC void initialize_init_file (void);
STATIC void add_file (const char *, const char *);
STATIC void add_bytes (varray_t *, char *, Size_t);
STATIC void add_varray_page (varray_t *);
STATIC void update_headers (void);
STATIC void write_varray (varray_t *, off_t, const char *);
STATIC void write_object (void);
STATIC const char *st_to_string (st_t);
STATIC const char *sc_to_string (sc_t);
STATIC char *read_line (void);
STATIC void parse_input (void);
STATIC void mark_stabs (const char *);
STATIC void parse_begin (const char *);
STATIC void parse_bend (const char *);
STATIC void parse_def (const char *);
STATIC void parse_end (const char *);
STATIC void parse_ent (const char *);
STATIC void parse_file (const char *);
STATIC void parse_stabs_common (const char *, const char *, const char *);
STATIC void parse_stabs (const char *);
STATIC void parse_stabn (const char *);
STATIC page_t *read_seek (Size_t, off_t, const char *);
STATIC void copy_object (void);
STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
STATIC page_t *allocate_page (void);
STATIC page_t *allocate_multiple_pages (Size_t);
STATIC void free_multiple_pages (page_t *, Size_t);
#ifndef MALLOC_CHECK
STATIC page_t *allocate_cluster (Size_t);
#endif
STATIC forward_t *allocate_forward (void);
STATIC scope_t *allocate_scope (void);
STATIC shash_t *allocate_shash (void);
STATIC tag_t *allocate_tag (void);
STATIC thash_t *allocate_thash (void);
STATIC thead_t *allocate_thead (void);
STATIC vlinks_t *allocate_vlinks (void);
STATIC void free_forward (forward_t *);
STATIC void free_scope (scope_t *);
STATIC void free_tag (tag_t *);
STATIC void free_thead (thead_t *);
extern char *optarg;
extern int optind;
extern int opterr;
/* 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 *const name; /* pseudo-op in ascii */
const int len; /* length of name to compare */
void (*const func) (const char *); /* function to handle line */
} pseudo_ops_t;
static const 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 },
{ "#.stabs", sizeof("#.stabs")-1, parse_stabs },
{ "#.stabn", sizeof("#.stabn")-1, parse_stabn },
{ ".stabs", sizeof(".stabs")-1, parse_stabs },
{ ".stabn", sizeof(".stabn")-1, parse_stabn },
{ "#@stabs", sizeof("#@stabs")-1, mark_stabs },
};
/* Command line options for getopt_long. */
static const struct option options[] =
{
{ "version", 0, 0, 'V' },
{ "verbose", 0, 0, 'v' },
{ 0, 0, 0, 0 }
};
/* Add a page to a varray object. */
STATIC void
add_varray_page (varray_t *vp)
{
vlinks_t *new_links = allocate_vlinks ();
#ifdef MALLOC_CHECK
if (vp->object_size > 1)
new_links->datum = xcalloc (1, vp->object_size);
else
#endif
new_links->datum = allocate_page ();
alloc_counts[ (int) alloc_type_varray ].total_alloc++;
alloc_counts[ (int) alloc_type_varray ].total_pages++;
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;
}
}
/* Compute hash code (from tree.c) */
#define HASHBITS 30
STATIC shash_t *
hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
symint_t *ret_hash_index)
{
unsigned long hi;
Ptrdiff_t i;
shash_t *ptr;
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 ((symint_t) hash_len == ptr->len
&& first_ch == ptr->string[0]
&& memcmp (text, ptr->string, hash_len) == 0)
break;
return ptr;
}
/* 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. VP is a string
virtual array, HASH_TBL a pointer to the hash table, the string
starts at START and the position one byte after the string is given
with END_P1, the resulting hash pointer is returned in RET_HASH. */
STATIC symint_t
add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
const char *end_p1, shash_t **ret_hash)
{
Ptrdiff_t len = end_p1 - start;
shash_t *hash_ptr;
symint_t hi;
if (len >= (Ptrdiff_t) 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)
{
char *p;
if (vp->objects_last_page + len >= (long) PAGE_USIZE)
{
vp->num_allocated
= ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
add_varray_page (vp);
}
hash_ptr = allocate_shash ();
hash_ptr->next = hash_tbl[hi];
hash_tbl[hi] = hash_ptr;
hash_ptr->len = len;
hash_ptr->indx = 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->indx;
}
/* Add a local symbol. The symbol string starts at STR_START and the
first byte after it is marked by STR_END_P1. The symbol has type
TYPE and storage class STORAGE and value VALUE. INDX is an index
to local/aux. symbols. */
STATIC symint_t
add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
sc_t storage, symint_t value, symint_t indx)
{
symint_t ret;
SYMR *psym;
scope_t *pscope;
thead_t *ptag_head;
tag_t *ptag;
tag_t *ptag_next;
varray_t *vp = &cur_file_ptr->symbols;
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++;
if (MIPS_IS_STAB (psym))
return ret;
/* Save the symbol within the hash table if this is a static
item, and it has a name. */
if (hash_ptr != (shash_t *) 0
&& (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 = allocate_scope ();
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 = allocate_thead ();
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_tag (ptag);
}
free_thead (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;
/* The index for an external st_Proc symbol is the index
of the st_Proc symbol in the local symbol table. */
last_func_eptr->asym.index = psym->index;
}
}
free_scope (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))
{
const char *sc_str = sc_to_string (storage);
const 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, (int) (str_end_p1 - str_start), str_start);
else
{
Size_t len = strlen (st_str);
fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
}
}
return ret;
}
/* Add an external symbol with symbol pointer ESYM and file index
IFD. */
STATIC symint_t
add_ext_symbol (EXTR *esym, int ifd)
{
const char *str_start; /* first byte in string */
const char *str_end_p1; /* first byte after string */
EXTR *psym;
varray_t *vp = &ext_symbols;
shash_t *hash_ptr = (shash_t *) 0;
str_start = ORIG_ESTRS (esym->asym.iss);
str_end_p1 = str_start + strlen (str_start);
if (debug > 1)
{
long value = esym->asym.value;
const char *sc_str = sc_to_string (esym->asym.sc);
const char *st_str = st_to_string (esym->asym.st);
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, (int) (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 = *esym;
psym->ifd = ifd;
psym->asym.index = indexNil;
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++;
}
/* Add an auxiliary symbol (passing a symint). */
STATIC symint_t
add_aux_sym_symint (symint_t aux_word)
{
AUXU *aux_ptr;
efdr_t *file_ptr = cur_file_ptr;
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 (int file_index, symint_t sym_index)
{
AUXU *aux_ptr;
efdr_t *file_ptr = cur_file_ptr;
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++;
}
/* Add an auxiliary symbol (passing the basic type and possibly
type qualifiers). */
STATIC symint_t
add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
{
AUXU *aux_ptr;
efdr_t *file_ptr = cur_file_ptr;
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)
{
thash_t *hash_ptr;
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->indx;
if (hash_ptr == (thash_t *) 0)
{
hash_ptr = allocate_thash ();
hash_ptr->next = hash_tbl[hi];
hash_ptr->type = aux;
hash_ptr->indx = 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 bitfield length if it exists.
NOTE: Mips documentation claims bitfield goes at the end of the
AUX record, but the DECstation compiler emits it here.
(This would only make a difference for enum bitfields.)
Also note: We use the last size given since gcc may emit 2
for an enum bitfield. */
if (t->bitfield)
(void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
/* 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)
{
symint_t file_index = t->tag_ptr->ifd;
symint_t sym_index = t->tag_ptr->indx;
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
{
forward_t *forward_ref = allocate_forward ();
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 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]);
};
/* NOTE: Mips documentation claims that the bitfield width goes here.
But it needs to be emitted earlier. */
return ret;
}
/* Add a tag to the tag table (unless it already exists). */
STATIC tag_t *
get_tag (const char *tag_start, /* 1st byte of tag name */
const char *tag_end_p1, /* 1st byte after tag name */
symint_t indx, /* 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 (indx != indexNil)
{
tag_ptr->basic_type = basic_type;
tag_ptr->ifd = cur_file_ptr->file_index;
tag_ptr->indx = indx;
}
return tag_ptr;
}
(void) add_string (&tag_strings,
&tag_hash[0],
tag_start,
tag_end_p1,
&hash_ptr);
tag_ptr = allocate_tag ();
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->indx = indx;
tag_ptr->ifd = (indx == indexNil
? (symint_t) -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;
}
/* Add an unknown {struct, union, enum} tag. */
STATIC void
add_unknown_tag (tag_t *ptag)
{
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)
{
const 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, (int) 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_forward (f_cur);
}
return;
}
/* 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 (const char *func_start, /* 1st byte of func name */
const char *func_end_p1) /* 1st byte after func name */
{
PDR *new_proc_ptr;
efdr_t *file_ptr = cur_file_ptr;
varray_t *vp = &file_ptr->procs;
symint_t value = 0;
st_t proc_type = st_Proc;
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)
{
PDR *old_proc_ptr = shash_ptr->proc_ptr;
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_begin = sym_ptr;
cur_oproc_end = shash_ptr->end_ptr;
value = sym_ptr->value;
cur_oproc_ptr = old_proc_ptr;
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",
(int) (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);
}
/* Initialize the init_file structure. */
STATIC void
initialize_init_file (void)
{
union {
unsigned char c[4];
int i;
} endian_test;
memset (&init_file, 0, sizeof (init_file));
init_file.fdr.lang = langC;
init_file.fdr.fMerge = 1;
init_file.fdr.glevel = GLEVEL_2;
/* mips-tfile doesn't attempt to perform byte swapping and always writes
out integers in its native ordering. For cross-compilers, this need
not be the same as either the host or the target. The simplest thing
to do is skip the configury and perform an introspective test. */
/* ??? Despite the name, mips-tfile is currently only used on alpha/Tru64
and would/may require significant work to be used in cross-compiler
configurations, so we could simply admit defeat and hard code this as
little-endian, i.e. init_file.fdr.fBigendian = 0. */
endian_test.i = 1;
if (endian_test.c[3])
init_file.fdr.fBigendian = 1;
INITIALIZE_VARRAY (&init_file.strings, char);
INITIALIZE_VARRAY (&init_file.symbols, SYMR);
INITIALIZE_VARRAY (&init_file.procs, PDR);
INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
init_file_initialized = 1;
}
/* 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 (const char *file_start, /* first byte in string */
const char *file_end_p1) /* first byte after string */
{
static char zero_bytes[2] = { '\0', '\0' };
Ptrdiff_t len = file_end_p1 - file_start;
int first_ch = *file_start;
efdr_t *file_ptr;
if (debug)
fprintf (stderr, "\tfile\t%.*s\n", (int) 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 (file_start, 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);
if (! init_file_initialized)
initialize_init_file ();
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 > (long) 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. */
*last_file_ptr = file_ptr;
last_file_ptr = &file_ptr->next_file;
/* 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]);
}
}
/* Add a stream of random bytes to a varray. */
STATIC void
add_bytes (varray_t *vp, /* virtual array to add too */
char *input_ptr, /* start of the bytes */
Size_t nitems) /* # items to move */
{
Size_t move_items;
Size_t move_bytes;
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, input_ptr, move_bytes);
input_ptr += move_bytes;
}
else
{
while (move_bytes-- > 0)
*ptr++ = *input_ptr++;
}
}
}
/* Convert storage class to string. */
STATIC const char *
sc_to_string (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 "???,";
}
/* Convert symbol type to string. */
STATIC const char *
st_to_string (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 "???,";
}
/* Read a line from standard input, and return the start of the buffer
(which is grows if the line is too big). We split lines at the
semi-colon, and return each logical line independently. */
STATIC char *
read_line (void)
{
static int line_split_p = 0;
int string_p = 0;
int comment_p = 0;
int ch;
char *ptr;
if (cur_line_start == (char *) 0)
{ /* allocate initial page */
cur_line_start = (char *) allocate_page ();
cur_line_alloc = PAGE_SIZE;
}
if (!line_split_p)
line_number++;
line_split_p = 0;
cur_line_nbytes = 0;
for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
{
if (++cur_line_nbytes >= cur_line_alloc-1)
{
int num_pages = cur_line_alloc / PAGE_SIZE;
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;
}
else if (ch == '\0')
error ("null character found in input");
else if (!comment_p)
{
if (ch == '"')
string_p = !string_p;
else if (ch == '#')
comment_p++;
else if (ch == ';' && !string_p)
{
line_split_p = 1;
*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;
}
/* 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 (const char *start)
{
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 preceding .file directive");
return;
}
if (cur_proc_ptr == (PDR *) 0)
{
error ("#.begin directive without a preceding .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",
(int) (end_p1 - start), start);
return;
}
if (cur_oproc_begin == (SYMR *) 0)
{
error ("procedure table %.*s not found for #.begin",
(int) (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 - cur_oproc_begin->value,
(symint_t) 0);
}
/* 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 (const char *start)
{
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 preceding .file directive");
return;
}
if (cur_proc_ptr == (PDR *) 0)
{
error ("#.bend directive without a preceding .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 #.bend", (int) (end_p1 - start), start);
return;
}
if (cur_oproc_begin == (SYMR *) 0)
{
error ("procedure table %.*s not found for #.bend",
(int) (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 - cur_oproc_begin->value,
(symint_t) 0);
}
/* 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 (const char *name_start)
{
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 = 0; /* start of tag name */
const char *tag_end_p1 = 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 indx = 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. */
/* Allow spaces and such in names for G++ templates, which produce stabs
that look like:
#.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
;
if (ch == '\0')
{
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 = 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);
/* It's only a number if followed by ';' or ','. */
if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
arg_was_number++;
}
else if (ch == '\0' || ISSPACE (ch))
{