diff options
author | K. Richard Pixley <rich@cygnus> | 1991-03-25 22:25:08 +0000 |
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committer | K. Richard Pixley <rich@cygnus> | 1991-03-25 22:25:08 +0000 |
commit | 61a153e5c167fceabc6fd145d7659efef2046d6d (patch) | |
tree | 7afa9e76e354085521c7105f1e6cf04652dfafd9 | |
parent | fcd5c2934e7ce37a0e607b00cac4cf6a149b2b1e (diff) | |
download | gdb-61a153e5c167fceabc6fd145d7659efef2046d6d.zip gdb-61a153e5c167fceabc6fd145d7659efef2046d6d.tar.gz gdb-61a153e5c167fceabc6fd145d7659efef2046d6d.tar.bz2 |
as rich copied from mike
-rwxr-xr-x | gas/a.out.gnu.h | 461 | ||||
-rwxr-xr-x | include/a.out.encap.h | 172 | ||||
-rwxr-xr-x | include/ranlib.h | 55 | ||||
-rwxr-xr-x | include/stab.def | 182 | ||||
-rwxr-xr-x | include/stab.gnu.h | 16 |
5 files changed, 886 insertions, 0 deletions
diff --git a/gas/a.out.gnu.h b/gas/a.out.gnu.h new file mode 100755 index 0000000..a7f02a5 --- /dev/null +++ b/gas/a.out.gnu.h @@ -0,0 +1,461 @@ +#ifndef __A_OUT_GNU_H__ +#define __A_OUT_GNU_H__ + +#include "target.h" /* Figure out which target and host systems */ + +#define __GNU_EXEC_MACROS__ + +#ifndef __STRUCT_EXEC_OVERRIDE__ + +struct exec +{ + unsigned long a_info; /* Use macros N_MAGIC, etc for access */ + unsigned a_text; /* length of text, in bytes */ + unsigned a_data; /* length of data, in bytes */ + unsigned a_bss; /* length of uninitialized data area for file, in bytes */ + unsigned a_syms; /* length of symbol table data in file, in bytes */ + unsigned a_entry; /* start address */ + unsigned a_trsize; /* length of relocation info for text, in bytes */ + unsigned a_drsize; /* length of relocation info for data, in bytes */ +}; + +#endif /* __STRUCT_EXEC_OVERRIDE__ */ + +/* these go in the N_MACHTYPE field */ +/* These symbols could be defined by code from Suns...punt 'em */ +#undef M_OLDSUN2 +#undef M_68010 +#undef M_68020 +#undef M_SPARC +enum machine_type { + M_OLDSUN2 = 0, + M_68010 = 1, + M_68020 = 2, + M_SPARC = 3, + /* skip a bunch so we don't run into any of sun's numbers */ + M_386 = 100, + M_29K = 101, +}; + +#define N_MAGIC(exec) ((exec).a_info & 0xffff) +#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff)) +#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff) +#define N_SET_INFO(exec, magic, type, flags) \ + ((exec).a_info = ((magic) & 0xffff) \ + | (((int)(type) & 0xff) << 16) \ + | (((flags) & 0xff) << 24)) +#define N_SET_MAGIC(exec, magic) \ + ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff))) + +#define N_SET_MACHTYPE(exec, machtype) \ + ((exec).a_info = \ + ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16)) + +#define N_SET_FLAGS(exec, flags) \ + ((exec).a_info = \ + ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24)) + +/* Code indicating object file or impure executable. */ +#define OMAGIC 0407 +/* Code indicating pure executable. */ +#define NMAGIC 0410 +/* Code indicating demand-paged executable. */ +#define ZMAGIC 0413 + +#define N_BADMAG(x) \ + (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ + && N_MAGIC(x) != ZMAGIC) + +#define _N_BADMAG(x) \ + (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ + && N_MAGIC(x) != ZMAGIC) + +#define _N_HDROFF(x) (1024 - sizeof (struct exec)) + +#define N_TXTOFF(x) \ + (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : sizeof (struct exec)) + +#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text) + +#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data) + +#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize) + +#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize) + +#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms) + +/* Address of text segment in memory after it is loaded. */ +/* Don't load things at zero, it encourages zero-pointer bugs */ +#ifndef TEXT_START_ADDR +#define TEXT_START_ADDR 0x10000 +#endif +#define N_TXTADDR(x) TEXT_START_ADDR + +/* Address of data segment in memory after it is loaded. + Note that it is up to you to define SEGMENT_SIZE + on machines not listed here. */ +#ifndef SEGMENT_SIZE +#if defined(vax) || defined(hp300) || defined(pyr) +#define SEGMENT_SIZE page_size +#endif +#ifdef sony +#define SEGMENT_SIZE 0x2000 +#endif /* Sony. */ +#ifdef is68k +#define SEGMENT_SIZE 0x20000 +#endif +#if defined(m68k) && defined(PORTAR) +#define PAGE_SIZE 0x400 +#define SEGMENT_SIZE PAGE_SIZE +#endif +#endif + +#define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1)) + +#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text) + +#ifndef N_DATADDR +#define N_DATADDR(x) \ + (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \ + : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) +#endif + +/* Address of bss segment in memory after it is loaded. */ +#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data) + +struct nlist { + union { + char *n_name; + struct nlist *n_next; + long n_strx; + } n_un; + unsigned char n_type; + char n_other; + short n_desc; + unsigned long n_value; +}; + +#define N_UNDF 0 +#define N_ABS 2 +#define N_TEXT 4 +#define N_DATA 6 +#define N_BSS 8 +#define N_FN 15 + +#define N_EXT 1 +#define N_TYPE 036 +#define N_STAB 0340 + +/* The following type indicates the definition of a symbol as being + an indirect reference to another symbol. The other symbol + appears as an undefined reference, immediately following this symbol. + + Indirection is asymmetrical. The other symbol's value will be used + to satisfy requests for the indirect symbol, but not vice versa. + If the other symbol does not have a definition, libraries will + be searched to find a definition. */ +#define N_INDR 0xa + +/* The following symbols refer to set elements. + All the N_SET[ATDB] symbols with the same name form one set. + Space is allocated for the set in the text section, and each set + element's value is stored into one word of the space. + The first word of the space is the length of the set (number of elements). + + The address of the set is made into an N_SETV symbol + whose name is the same as the name of the set. + This symbol acts like a N_DATA global symbol + in that it can satisfy undefined external references. */ + +/* These appear as input to LD, in a .o file. */ +#define N_SETA 0x14 /* Absolute set element symbol */ +#define N_SETT 0x16 /* Text set element symbol */ +#define N_SETD 0x18 /* Data set element symbol */ +#define N_SETB 0x1A /* Bss set element symbol */ + +/* This is output from LD. */ +#define N_SETV 0x1C /* Pointer to set vector in data area. */ + +/* This structure describes a single relocation to be performed. + The text-relocation section of the file is a vector of these structures, + all of which apply to the text section. + Likewise, the data-relocation section applies to the data section. */ + +#if TARGET == TARGET_SPARC || TARGET == TARGET_AM29K +/* + * The following enum and struct were borrowed from + * sunOS /usr/include/sun4/a.out.h and extended to handle + * other machines. + */ + +enum reloc_type +{ + RELOC_8, RELOC_16, RELOC_32, RELOC_DISP8, + RELOC_DISP16, RELOC_DISP32, RELOC_WDISP30, RELOC_WDISP22, + RELOC_HI22, RELOC_22, RELOC_13, RELOC_LO10, + RELOC_SFA_BASE, RELOC_SFA_OFF13, RELOC_BASE10, RELOC_BASE13, + RELOC_BASE22, RELOC_PC10, RELOC_PC22, RELOC_JMP_TBL, + RELOC_SEGOFF16, RELOC_GLOB_DAT, RELOC_JMP_SLOT, RELOC_RELATIVE, + +/* 29K relocation types */ + RELOC_JUMPTARG, RELOC_CONST, RELOC_CONSTH, + + NO_RELOC +}; + +#define RELOC_TYPE_NAMES \ +"8", "16", "32", "DISP8", \ +"DISP16", "DISP32", "WDISP30", "WDISP22", \ +"HI22", "22", "13", "LO10", \ +"SFA_BASE", "SFAOFF13", "BASE10", "BASE13", \ +"BASE22", "PC10", "PC22", "JMP_TBL", \ +"SEGOFF16", "GLOB_DAT", "JMP_SLOT", "RELATIVE", \ +"JUMPTARG", "CONST", "CONSTH", \ +"NO_RELOC", \ +"XXX_28", "XXX_29", "XXX_30", "XXX_31" + +struct reloc_info_extended +{ + unsigned long r_address; + unsigned int r_index:24; +# define r_symbolnum r_index + unsigned r_extern:1; + unsigned :2; + enum reloc_type r_type:5; + long int r_addend; +}; + +/* Let programs know what they're dealing with */ +#define RELOC_EXTENDED 1 + +#undef relocation_info +#define relocation_info reloc_info_extended +#define RELOC_ADDRESS(r) ((r)->r_address) +#define RELOC_EXTERN_P(r) ((r)->r_extern) +#define RELOC_TYPE(r) ((r)->r_index) +#define RELOC_EXTENDED_TYPE(r) ((r)->r_type) +#define RELOC_SYMBOL(r) ((r)->r_index) +#define RELOC_MEMORY_SUB_P(r) 0 +#define RELOC_MEMORY_ADD_P(r) 0 +#define RELOC_ADD_EXTRA(r) ((r)->r_addend) +#define RELOC_PCREL_P(r) \ + ( ((r)->r_type >= RELOC_DISP8 && (r)->r_type <= RELOC_WDISP22) \ + || (r)->r_type == RELOC_JUMPTARG ) +#define RELOC_VALUE_RIGHTSHIFT(r) (reloc_target_rightshift[(r)->r_type]) +#define RELOC_TARGET_SIZE(r) (reloc_target_size[(r)->r_type]) +#define RELOC_TARGET_BITPOS(r) 0 +#define RELOC_TARGET_BITSIZE(r) (reloc_target_bitsize[(r)->r_type]) + +/* Note that these are very dependent on the order of the enums in + enum reloc_type (in a.out.h); if they change the following must be + changed */ +/* Also note that some of these may be incorrect; I have no information */ +#ifndef __STDC__ +#define const /**/ +#endif +static const int reloc_target_rightshift[] = { + 0, 0, 0, 0, + 0, 0, 2, 2, + 10, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0, + 2, 0,16, /* 29K jumptarg, const, consth */ + 0, +}; +#define RELOC_SIZE_SPLIT16 13 +static const int reloc_target_size[] = { + 0, 1, 2, 0, + 1, 2, 2, 2, + 2, 2, 2, 2, + 2, 2, 2, 2, + 2, 2, 2, 2, + 2, 2, 2, 2, + RELOC_SIZE_SPLIT16, RELOC_SIZE_SPLIT16, RELOC_SIZE_SPLIT16, + 0, +}; +static const int reloc_target_bitsize[] = { + 8, 16, 32, 8, + 16, 32, 30, 22, + 22, 22, 13, 10, + 32, 32, 16, 0, + 0, 0, 0, 0, /* dunno */ + 0, 0, 0, 0, + 16, 16, 16, /* 29K jumptarg, const, consth */ + 0, +}; + +#define MAX_ALIGNMENT (sizeof (double)) + +#else /* Not SPARC or AM29K */ + +struct relocation_info +{ + /* Address (within segment) to be relocated. */ + int r_address; + /* The meaning of r_symbolnum depends on r_extern. */ + unsigned int r_symbolnum:24; + /* Nonzero means value is a pc-relative offset + and it should be relocated for changes in its own address + as well as for changes in the symbol or section specified. */ + unsigned int r_pcrel:1; + /* Length (as exponent of 2) of the field to be relocated. + Thus, a value of 2 indicates 1<<2 bytes. */ + unsigned int r_length:2; + /* 1 => relocate with value of symbol. + r_symbolnum is the index of the symbol + in file's the symbol table. + 0 => relocate with the address of a segment. + r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS + (the N_EXT bit may be set also, but signifies nothing). */ + unsigned int r_extern:1; + /* Four bits that aren't used, but when writing an object file + it is desirable to clear them. */ + unsigned int r_pad:4; +}; +#endif + +/* + * Ok. Following are the relocation information macros. If your + * system should not be able to use the default set (below), you must + * define the following: + + * relocation_info: This must be typedef'd (or #define'd) to the type + * of structure that is stored in the relocation info section of your + * a.out files. Often this is defined in the a.out.h for your system. + * + * RELOC_ADDRESS (rval): Offset into the current section of the + * <whatever> to be relocated. *Must be an lvalue*. + * + * RELOC_EXTERN_P (rval): Is this relocation entry based on an + * external symbol (1), or was it fully resolved upon entering the + * loader (0) in which case some combination of the value in memory + * (if RELOC_MEMORY_ADD_P) and the extra (if RELOC_ADD_EXTRA) contains + * what the value of the relocation actually was. *Must be an lvalue*. + * + * RELOC_TYPE (rval): If this entry was fully resolved upon + * entering the loader, what type should it be relocated as? + * + * RELOC_EXTENDED_TYPE (rval): If this entry is for a machine using + * extended relocatino, what type of field is it? (For example, on RISC + * machines, odd-sized displacements or split displacements occur.) + * + * RELOC_SYMBOL (rval): If this entry was not fully resolved upon + * entering the loader, what is the index of it's symbol in the symbol + * table? *Must be a lvalue*. + * + * RELOC_MEMORY_ADD_P (rval): This should return true if the final + * relocation value output here should be added to memory, or if the + * section of memory described should simply be set to the relocation + * value. + * + * RELOC_ADD_EXTRA (rval): (Optional) This macro, if defined, gives + * an extra value to be added to the relocation value based on the + * individual relocation entry. *Must be an lvalue if defined*. + * + * RELOC_PCREL_P (rval): True if the relocation value described is + * pc relative. + * + * RELOC_VALUE_RIGHTSHIFT (rval): Number of bits right to shift the + * final relocation value before putting it where it belongs. + * + * RELOC_TARGET_SIZE (rval): log to the base 2 of the number of + * bytes of size this relocation entry describes; 1 byte == 0; 2 bytes + * == 1; 4 bytes == 2, and etc. This is somewhat redundant (we could + * do everything in terms of the bit operators below), but having this + * macro could end up producing better code on machines without fancy + * bit twiddling. Also, it's easier to understand/code big/little + * endian distinctions with this macro. + * + * RELOC_TARGET_BITPOS (rval): The starting bit position within the + * object described in RELOC_TARGET_SIZE in which the relocation value + * will go. + * + * RELOC_TARGET_BITSIZE (rval): How many bits are to be replaced + * with the bits of the relocation value. It may be assumed by the + * code that the relocation value will fit into this many bits. This + * may be larger than RELOC_TARGET_SIZE if such be useful. + * + * + * Things I haven't implemented + * ---------------------------- + * + * Values for RELOC_TARGET_SIZE other than 0, 1, or 2. + * + * Pc relative relocation for External references. + */ +#if TARGET == TARGET_SEQUENT +#define RELOC_ADDRESS(r) ((r)->r_address) +#define RELOC_EXTERN_P(r) ((r)->r_extern) +#define RELOC_TYPE(r) ((r)->r_symbolnum) +#define RELOC_SYMBOL(r) ((r)->r_symbolnum) +#define RELOC_MEMORY_SUB_P(r) ((r)->r_bsr) +#define RELOC_MEMORY_ADD_P(r) 1 +#undef RELOC_ADD_EXTRA +#define RELOC_PCREL_P(r) ((r)->r_pcrel || (r)->r_bsr) +#define RELOC_VALUE_RIGHTSHIFT(r) 0 +#define RELOC_TARGET_SIZE(r) ((r)->r_length) +#define RELOC_TARGET_BITPOS(r) 0 +#define RELOC_TARGET_BITSIZE(r) 32 +#endif + +/* Default macros */ +#ifndef RELOC_ADDRESS +#define RELOC_ADDRESS(r) ((r)->r_address) +#define RELOC_EXTERN_P(r) ((r)->r_extern) +#define RELOC_TYPE(r) ((r)->r_symbolnum) +#define RELOC_SYMBOL(r) ((r)->r_symbolnum) +#define RELOC_MEMORY_SUB_P(r) 0 +#define RELOC_MEMORY_ADD_P(r) 1 +#undef RELOC_ADD_EXTRA +#define RELOC_PCREL_P(r) ((r)->r_pcrel) +#define RELOC_VALUE_RIGHTSHIFT(r) 0 +#define RELOC_TARGET_SIZE(r) ((r)->r_length) +#define RELOC_TARGET_BITPOS(r) 0 +#define RELOC_TARGET_BITSIZE(r) 32 +#endif + +/* Maximum alignment required of a common'd variable. If a var of this + size or larger is allocated in BSS when nobody defines it, it gets + this alignment. */ + +#ifndef MAX_ALIGNMENT +#define MAX_ALIGNMENT (sizeof (int)) +#endif + + +/* Definitions for routines that read and write GNU a.out files */ + +enum objfile_kind { + OBJFILE_ERROR, + OBJFILE_UNKNOWN, + OBJFILE_SINGLE, + OBJFILE_ARCHIVE, +}; + +enum objfile_kind read_aout_header(); /* (desc, &header) read&swap header */ + +/* Read an a.out header from DESC and call rel_fn(DESC, header) + if it is an object file, lib_fn(DESC) if it is a library, else + call err_fn("msg") */ +void handle_aout_header(); /* (desc, rel_fn, lib_fn, err_fn) */ + +/* Byte-swapping definitions */ + +void swap_aoutheader(); /* BSD a.out header */ +short swap_getshort (); +void swap_putshort(); +long swap_getlong (); +void swap_putlong(); +void swap_reloc_info_in(); /* BSD relocation information */ +void swap_reloc_info_out(); /* BSD relocation information */ +void swap_nlists(); /* BSD symbol name lists */ +void swap_root_updates(); /* GDB Symseg */ + +/* Bring on the encapsulation, if configured in! */ +#ifdef COFF_ENCAPSULATE +#include "a.out.encap.h" +#endif + +#endif /* __A_OUT_GNU_H__ */ diff --git a/include/a.out.encap.h b/include/a.out.encap.h new file mode 100755 index 0000000..39c84d7 --- /dev/null +++ b/include/a.out.encap.h @@ -0,0 +1,172 @@ +/* Another try at encapsulating bsd object files in coff. + Copyright (C) 1988, 1989, Free Software Foundation, Inc. + Written by Pace Willisson 12/9/88 + + This file 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 1, or (at your option) + any later version. + + This file 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 this file; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* + * This time, we will only use the coff headers to tell the kernel + * how to exec the file. Therefore, the only fields that need to + * be filled in are the scnptr and vaddr for the text and data + * sections, and the vaddr for the bss. As far as coff is concerned, + * there is no symbol table, relocation, or line numbers. + * + * A normal bsd header (struct exec) is placed after the coff headers, + * and before the real text. I defined a the new fields 'a_machtype' + * and a_flags. If a_machtype is M_386, and a_flags & A_ENCAP is + * true, then the bsd header is preceeded by a coff header. Macros + * like N_TXTOFF and N_TXTADDR use this field to find the bsd header. + * + * The only problem is to track down the bsd exec header. The + * macros HEADER_OFFSET, etc do this. Look at nm.c, dis.c, etc + * for examples. + */ +#ifndef A_OUT_ENCAP_H_SEEN +#define A_OUT_ENCAP_H_SEEN + +#include "a.out.gnu.h" + +/* Figure out what our target machine is */ +#include "target.h" + +#define N_FLAGS_COFF_ENCAPSULATE 0x20 /* coff header precedes bsd header */ + +/* Describe the COFF header used for encapsulation. */ + +struct coffheader +{ + /* filehdr */ + unsigned short f_magic; + unsigned short f_nscns; + long f_timdat; + long f_symptr; + long f_nsyms; + unsigned short f_opthdr; + unsigned short f_flags; + /* aouthdr */ + short magic; + short vstamp; + long tsize; + long dsize; + long bsize; + long entry; + long text_start; + long data_start; + struct coffscn + { + char s_name[8]; + long s_paddr; + long s_vaddr; + long s_size; + long s_scnptr; + long s_relptr; + long s_lnnoptr; + unsigned short s_nreloc; + unsigned short s_nlnno; + long s_flags; + } scns[3]; /* text, data, bss */ +}; + +/* Describe some of the parameters of the encapsulation, + including how to find the encapsulated BSD header. */ + +#if TARGET == TARGET_I386 +#define COFF_MAGIC 0514 /* I386MAGIC */ +#endif +#if TARGET == TARGET_M68K +#define COFF_MAGIC 0520 /* MC68MAGIC */ +#endif +#if TARGET == TARGET_SPARC +#define COFF_MAGIC UNKNOWN!!! /* Used by TTI */ +#endif +#if TARGET == TARGET_AM29K +#define COFF_MAGIC 0x17A /* Used by asm29k cross-tools */ +#endif + +#ifdef COFF_MAGIC +short __header_offset_temp; + +/* FIXME, this is dumb. The same tools can't handle a.outs for different + architectures, just because COFF_MAGIC is different; so you need a + separate GNU nm for every architecture!!? Also note that for + expediency, this macros accepts COFF_MAGIC in either byte order. + The right thing to do is to call read_aout_header to handle all this. */ + +#define HEADER_OFFSET(f) \ + (__header_offset_temp = 0, \ + fread ((char *)&__header_offset_temp, sizeof (short), 1, (f)), \ + fseek ((f), -sizeof (short), 1), \ + (__header_offset_temp==COFF_MAGIC || __header_offset_temp == \ + ((COFF_MAGIC >> 8)|((COFF_MAGIC&0xFF)<<8)) \ + ? sizeof(struct coffheader) : 0)) + +#define HEADER_OFFSET_FD(fd) \ + (__header_offset_temp = 0, \ + read (fd, (char *)&__header_offset_temp, sizeof (short)), \ + lseek ((fd), -sizeof (short), 1), \ + (__header_offset_temp==COFF_MAGIC || __header_offset_temp == \ + ((COFF_MAGIC >> 8)|((COFF_MAGIC&0xFF)<<8)) \ + ? sizeof(struct coffheader) : 0)) + + +#else +#define HEADER_OFFSET(f) 0 +#define HEADER_OFFSET_FD(fd) 0 +#endif + +#define HEADER_SEEK(f) (fseek ((f), HEADER_OFFSET((f)), 1)) +#define HEADER_SEEK_FD(fd) (lseek ((fd), HEADER_OFFSET_FD((fd)), 1)) + + +/* Describe the characteristics of the BSD header + that appears inside the encapsulation. */ + +#undef _N_HDROFF +#undef N_TXTADDR +#undef N_DATADDR + +/* Encapsulated coff files that are linked ZMAGIC have a text segment + offset just past the header (and a matching TXTADDR), excluding + the headers from the text segment proper but keeping the physical + layout and the virtual memory layout page-aligned. + + Non-encapsulated a.out files that are linked ZMAGIC have a text + segment that starts at 0 and an N_TXTADR similarly offset to 0. + They too are page-aligned with each other, but they include the + a.out header as part of the text. + + The _N_HDROFF gets sizeof struct exec added to it, so we have + to compensate here. See <a.out.gnu.h>. */ + +#define _N_HDROFF(x) ((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \ + sizeof (struct coffheader) : -sizeof (struct exec)) + +/* Address of text segment in memory after it is loaded. */ +#define N_TXTADDR(x) \ + (TEXT_START_ADDR + \ + ((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \ + sizeof (struct coffheader) + sizeof (struct exec) : 0)) + +/* I have no idea what this is doing here. -- gnu@toad.com 20Mar90 + Perhaps it is to give a size that is acceptable to any machine? */ +#undef SEGMENT_SIZE +#define SEGMENT_SIZE 0x400000 + +#define N_DATADDR(x) \ + ((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \ + (SEGMENT_SIZE + ((N_TXTADDR(x)+(x).a_text-1) & ~(SEGMENT_SIZE-1))) : \ + (N_TXTADDR(x)+(x).a_text)) + +#endif /* A_OUT_ENCAP_H_SEEN */ diff --git a/include/ranlib.h b/include/ranlib.h new file mode 100755 index 0000000..07bc0ab --- /dev/null +++ b/include/ranlib.h @@ -0,0 +1,55 @@ +/* ranlib.h -- archive library index member definition for GNU. + Copyright (C) 1990 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* The Symdef member of an archive contains two things: + a table that maps symbol-string offsets to file offsets, + and a symbol-string table. All the symbol names are + run together (each with trailing null) in the symbol-string + table. There is a single longword bytecount on the front + of each of these tables. Thus if we have two symbols, + "foo" and "_bar", that are in archive members at offsets + 200 and 900, it would look like this: + 16 ; byte count of index table + 0 ; offset of "foo" in string table + 200 ; offset of foo-module in file + 4 ; offset of "bar" in string table + 900 ; offset of bar-module in file + 9 ; byte count of string table + "foo\0_bar\0" ; string table */ + +/* Format of __.SYMDEF: + First, a longword containing the size of the 'symdef' data that follows. + Second, zero or more 'symdef' structures. + Third, a longword containing the length of symbol name strings. + Fourth, zero or more symbol name strings (each followed by a null). */ + +struct symdef + { + union + { + unsigned long string_offset; /* In the file */ + char *name; /* In memory, sometimes */ + } s; + unsigned long file_offset; + }; + +/* Compatability with BSD code */ + +#define ranlib symdef +#define ran_un s +#define ran_str string_offset +#define ran_name name +#define ran_off file_offset diff --git a/include/stab.def b/include/stab.def new file mode 100755 index 0000000..58364e1 --- /dev/null +++ b/include/stab.def @@ -0,0 +1,182 @@ +/* Table of DBX symbol codes for the GNU system. + Copyright (C) 1988 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* Global variable. Only the name is significant. + To find the address, look in the corresponding external symbol. */ +__define_stab (N_GSYM, 0x20, "GSYM") + +/* Function name for BSD Fortran. Only the name is significant. + To find the address, look in the corresponding external symbol. */ +__define_stab (N_FNAME, 0x22, "FNAME") + +/* Function name or text-segment variable for C. Value is its address. + Desc is supposedly starting line number, but GCC doesn't set it + and DBX seems not to miss it. */ +__define_stab (N_FUN, 0x24, "FUN") + +/* Data-segment variable with internal linkage. Value is its address. */ +__define_stab (N_STSYM, 0x26, "STSYM") + +/* BSS-segment variable with internal linkage. Value is its address. */ +__define_stab (N_LCSYM, 0x28, "LCSYM") + +/* Name of main routine. Only the name is significant. + This is not used in C. */ +__define_stab (N_MAIN, 0x2a, "MAIN") + +/* Register variable. Value is number of register. */ +__define_stab (N_RSYM, 0x40, "RSYM") + +/* Structure or union element. Value is offset in the structure. */ +__define_stab (N_SSYM, 0x60, "SSYM") + +/* Parameter variable. Value is offset from argument pointer. + (On most machines the argument pointer is the same as the frame pointer. */ +__define_stab (N_PSYM, 0xa0, "PSYM") + +/* Automatic variable in the stack. Value is offset from frame pointer. + Also used for type descriptions. */ +__define_stab (N_LSYM, 0x80, "LSYM") + +/* Alternate entry point. Value is its address. */ +__define_stab (N_ENTRY, 0xa4, "ENTRY") + +/* Name of main source file. + Value is starting text address of the compilation. */ +__define_stab (N_SO, 0x64, "SO") + +/* Name of sub-source file. + Value is starting text address of the compilation. */ +__define_stab (N_SOL, 0x84, "SOL") + +/* Line number in text segment. Desc is the line number; + value is corresponding address. */ +__define_stab (N_SLINE, 0x44, "SLINE") +/* Similar, for data segment. */ +__define_stab (N_DSLINE, 0x66, "DSLINE") +/* Similar, for bss segment. */ +__define_stab (N_BSLINE, 0x68, "BSLINE") + +/* Beginning of an include file. Only Sun uses this. + In an object file, only the name is significant. + The Sun linker puts data into some of the other fields. */ +__define_stab (N_BINCL, 0x82, "BINCL") +/* End of an include file. No name. + These two act as brackets around the file's output. + In an object file, there is no significant data in this entry. + The Sun linker puts data into some of the fields. */ +__define_stab (N_EINCL, 0xa2, "EINCL") +/* Place holder for deleted include file. + This appears only in output from the Sun linker. */ +__define_stab (N_EXCL, 0xc2, "EXCL") + +/* Beginning of lexical block. + The desc is the nesting level in lexical blocks. + The value is the address of the start of the text for the block. + The variables declared inside the block *precede* the N_LBRAC symbol. */ +__define_stab (N_LBRAC, 0xc0, "LBRAC") +/* End of a lexical block. Desc matches the N_LBRAC's desc. + The value is the address of the end of the text for the block. */ +__define_stab (N_RBRAC, 0xe0, "RBRAC") + +/* Begin named common block. Only the name is significant. */ +__define_stab (N_BCOMM, 0xe2, "BCOMM") +/* Begin named common block. Only the name is significant + (and it should match the N_BCOMM). */ +__define_stab (N_ECOMM, 0xe4, "ECOMM") +/* End common (local name): value is address. + I'm not sure how this is used. */ +__define_stab (N_ECOML, 0xe8, "ECOML") +/* Second symbol entry containing a length-value for the preceding entry. + The value is the length. */ +__define_stab (N_LENG, 0xfe, "LENG") + +/* Global symbol in Pascal. + Supposedly the value is its line number; I'm skeptical. */ +__define_stab (N_PC, 0x30, "PC") + +/* Modula-2 compilation unit. Can someone say what info it contains? */ +__define_stab (N_M2C, 0x42, "M2C") +/* Modula-2 scope information. Can someone say what info it contains? */ +__define_stab (N_SCOPE, 0xc4, "SCOPE") + +/* Sun's source-code browser stabs. ?? Don't know what the fields are. + Supposedly the field is "path to associated .cb file". */ +__define_stab (N_BROWS, 0x48, "BROWS") + +/* GNU C++ exception stabs. */ + +/* GNU C++ exception variable. Name is variable name. */ +__define_stab (N_EHDECL, 0x50, "EHDECL") + +/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if + this entry is immediately followed by a CAUGHT stab saying what exception + was caught. Multiple CAUGHT stabs means that multiple exceptions + can be caught here. If Desc is 0, it means all exceptions are caught + here. */ +__define_stab (N_CATCH, 0x54, "CATCH") + +/* These STAB's are used on Gould systems for Non-Base register symbols + or something like that. FIXME. I have assigned the values at random + since I don't have a Gould here. Fixups from Gould folk welcome... */ +__define_stab (N_NBTEXT, 0xF0, "NBTEXT") +__define_stab (N_NBDATA, 0xF2, "NBDATA") +__define_stab (N_NBBSS, 0xF4, "NBBSS") +__define_stab (N_NBSTS, 0xF6, "NBSTS") +__define_stab (N_NBLCS, 0xF8, "NBLCS") +__define_stab (N_NSYMS, 0xFA, "NSYMS") + +/* The above information, in matrix format. + + STAB MATRIX + _________________________________________________ + | 00 - 1F are not dbx stab symbols | + | Entries with bits 01 set are external symbols | + | N_UNDEF | N_ABS | N_TEXT | N_DATA | + | N_BSS | N_COMM | | N_FN | + |_______________________________________________| + | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | + | 28 LCSYM | 2A MAIN | 2C | 2E | + | 30 PC | 32 | 34 | 36 | + | 38 | 3A | 3C | 3E | + | 40 RSYM | 42 M2C | 44 SLINE | 46 | + | 48 BROWS | 4A | 4C | 4E | + | 50 EHDECL | 52 | 54 CATCH | 56 | + | 58 | 5A | 5C | 5E | + | 60 SSYM | 62 | 64 SO | 66 DSLINE | + | 68 BSLINE | 6A | 6C | 6E | + | 70 | 72 | 74 | 76 | + | 78 | 7A | 7C | 7E | + | 80 LSYM | 82 BINCL | 84 SOL | 86 | + | 88 | 8A | 8C | 8E | + | 90 | 92 | 94 | 96 | + | 98 | 9A | 9C | 9E | + | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | + | A8 | AA | AC | AE | + | B0 | B2 | B4 | B6 | + | B8 | BA | BC | BE | + | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | + | C8 | CA | CC | CE | + | D0 | D2 | D4 | D6 | + | D8 | DA | DC | DE | + | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | + | E8 ECOML | EA | EC | EE | + | F0 | F2 | F4 | F6 | + | F8 | FA | FC | FE LENG | + +-----------------------------------------------+ + +*/ diff --git a/include/stab.gnu.h b/include/stab.gnu.h new file mode 100755 index 0000000..77f2d41 --- /dev/null +++ b/include/stab.gnu.h @@ -0,0 +1,16 @@ +#ifndef __GNU_STAB__ + +/* Indicate the GNU stab.h is in use. */ + +#define __GNU_STAB__ + +#define __define_stab(NAME, CODE, STRING) NAME=CODE, + +enum __stab_debug_code +{ +#include "stab.def" +}; + +#undef __define_stab + +#endif /* __GNU_STAB_ */ |