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authorUlrich Drepper <drepper@redhat.com>1996-12-04 01:41:39 +0000
committerUlrich Drepper <drepper@redhat.com>1996-12-04 01:41:39 +0000
commit4770745624b7f7f25623f1f10d46a4c4d6aec25c (patch)
tree0b278b62f5486313ca69360800755575487fb0f8 /sysdeps/generic/a.out.h
parentd88554f033adab5d22b9860fc36bc3cb37f39b02 (diff)
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update from main archive 961203
Tue Dec 3 08:38:15 1996 Richard Henderson <rth@tamu.edu> * sysdeps/unix/alpha/sysdep.S: Remove definition of __errno_location. Reformat copyright. * elf/rtld.c (_dl_start): Don't dereference the value returned by elf_machine_got to get _DYNAMIC, instead call new function elf_machine_dynamic. * sysdeps/alpha/dl-machine.h: Permute elf_machine_got to elf_machine_dynamic. Reformat copyright. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/sparc/dl-machine.h: Likewise. * sysdeps/stub/dl-machine.h: Likewise. Tue Oct 15 23:46:00 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * MakeTAGS (sysdep_dirs): Include add-on sysdep directories. Tue Dec 3 02:06:18 1996 Ulrich Drepper <drepper@cygnus.com> * Makerules ($(libdir)/libc.so): Make first line of generated link script contain `/* GNU ld script'. This will be used in ldconfig to check for linker scripts. * sysdeps/mach/hurd/libc-ldscript: Likewise. * sysdeps/mach/hurd/libc_p-ldscript: Likewise. * stdlib/getsubopt.c: Update copyright. Correct typo in comment.
Diffstat (limited to 'sysdeps/generic/a.out.h')
-rw-r--r--sysdeps/generic/a.out.h339
1 files changed, 339 insertions, 0 deletions
diff --git a/sysdeps/generic/a.out.h b/sysdeps/generic/a.out.h
new file mode 100644
index 0000000..2c13762
--- /dev/null
+++ b/sysdeps/generic/a.out.h
@@ -0,0 +1,339 @@
+#ifndef __A_OUT_GNU_H__
+#define __A_OUT_GNU_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __GNU_EXEC_MACROS__
+
+#ifndef __STRUCT_EXEC_OVERRIDE__
+
+struct exec
+{
+ unsigned long a_info; /* Use macros N_MAGIC, etc for access */
+ unsigned a_text; /* size of text, in bytes */
+ unsigned a_data; /* size of data, in bytes */
+ unsigned a_bss; /* size of uninitialized data area, in bytes */
+ unsigned a_syms; /* length of symbol table data, in bytes */
+ unsigned a_entry; /* start address */
+ unsigned a_trsize; /* size of reloc info for text, in bytes */
+ unsigned a_drsize; /* size of reloc info for data, in bytes */
+
+#if defined (sequent) && defined (i386)
+ struct gdtbl
+ { /* Global Descriptor Table */
+ unsigned g_code[2];
+ unsigned g_data[2];
+ unsigned g_desc[2];
+ } a_gdtbl;
+ unsigned a_shdata; /* size of initialized shared data */
+ unsigned a_shbss; /* size of uninitialized shared data */
+ unsigned a_shdrsize; /* size of shared data relocation */
+ unsigned a_bootstrap[11]; /* bootstrap for standalone */
+ unsigned a_reserved[3]; /* reserved for future use */
+ unsigned a_version; /* object version */
+#endif /* Sequent Symmetry, Dynix 3.x */
+};
+
+#endif /* __STRUCT_EXEC_OVERRIDE__ */
+
+/* these go in the N_MACHTYPE field */
+enum machine_type {
+#if defined (M_OLDSUN2)
+ M__OLDSUN2 = M_OLDSUN2,
+#else
+ M_OLDSUN2 = 0,
+#endif
+#if defined (M_68010)
+ M__68010 = M_68010,
+#else
+ M_68010 = 1,
+#endif
+#if defined (M_68020)
+ M__68020 = M_68020,
+#else
+ M_68020 = 2,
+#endif
+#if defined (M_SPARC)
+ M__SPARC = M_SPARC,
+#else
+ M_SPARC = 3,
+#endif
+ /* skip a bunch so we don't run into any of sun's numbers */
+ M_386 = 100
+};
+
+#if defined (sequent) && defined (i386)
+
+/* Dynix 3 wants the magic number to be the whole first longword. */
+
+#define N_MAGIC(exec) ((exec).a_info)
+#define N_MACHTYPE(exec) 0
+#define N_FLAGS(exec) 0
+#define N_SET_INFO(exec, magic, type, flags) N_SET_MAGIC ((exec), (magic))
+#define N_SET_MAGIC(exec, magic) ((exec).a_info = (magic))
+#define N_SET_MACHTYPE(exec, machtype) ((void) 0)
+#define N_SET_FLAGS(exec, flags) ((void) 0)
+#define OMAGIC 0x12eb /* impure format - for .o's */
+#define ZMAGIC 0x22eb /* demand load format - zero at zero */
+#define NMAGIC you lose /* syntax error -- no pure format */
+#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != ZMAGIC)
+#define N_ADDRADJ(x) (N_MAGIC(x) == ZMAGIC ? SEGMENT_SIZE : 0)
+#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text - N_ADDRADJ(x))
+#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data + (x).a_shdata)
+#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize + (x).a_shdrsize)
+#define N_TXTADDR(x) SEGMENT_SIZE
+#define N_COMM 0x0a /** conflicts with N_INDR **/
+#define N_FN 0x0c
+/* Note that the Dynix binutils believe that N_SET[TDB] are
+ N_SH{DATA,BSS,COMM} -- be wary when mixing GNU & Dynix objects. */
+#define PAGE_SIZE 4096
+#define SEGMENT_SIZE PAGE_SIZE
+
+#else /* !(sequent && i386) */
+
+#if !defined (N_MAGIC)
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#endif
+#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))
+
+#endif /* sequent && i386 */
+
+#ifndef OMAGIC
+/* 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
+#endif /* not OMAGIC */
+
+#if !defined (N_BADMAG)
+#define N_BADMAG(x) \
+ (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
+ && N_MAGIC(x) != ZMAGIC)
+#endif
+
+#define _N_BADMAG(x) \
+ (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
+ && N_MAGIC(x) != ZMAGIC)
+
+#ifndef sparc
+#define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec))
+#else
+#define _N_HDROFF(x) (- sizeof (struct exec))
+#endif
+
+#if !defined (N_TXTOFF)
+#define N_TXTOFF(x) \
+ (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : sizeof (struct exec))
+#endif
+
+#if !defined (N_DATOFF)
+#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
+#endif
+
+#if !defined (N_TRELOFF)
+#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
+#endif
+
+#if !defined (N_DRELOFF)
+#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
+#endif
+
+#if !defined (N_SYMOFF)
+#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
+#endif
+
+#if !defined (N_STROFF)
+#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
+#endif
+
+/* Address of text segment in memory after it is loaded. */
+#if !defined (N_TXTADDR)
+#define N_TXTADDR(x) 0
+#endif
+
+/* 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. */
+#if defined (hp300) || defined (mips)
+#define PAGE_SIZE 4096
+#endif
+#if defined (sparc) || defined (NeXT)
+#define PAGE_SIZE 0x2000
+#endif
+#if defined (sony) || (defined (sun) && defined (mc68000))
+#define SEGMENT_SIZE 0x2000
+#endif /* Sony or 68k Sun. */
+#ifdef is68k
+#define SEGMENT_SIZE 0x20000
+#endif
+#if defined(m68k) && defined(PORTAR)
+#define PAGE_SIZE 0x400
+#endif
+#if defined(i386) && !defined(sequent)
+/* For COFF encapsulation. */
+#define SEGMENT_SIZE 0x400000
+#endif
+#ifndef SEGMENT_SIZE
+/* This used to be first in this paragraph and under:
+ if (defined(vax) || defined(hp300) || defined(pyr) || defined(sparc) \
+ || (defined(m68k) && defined(PORTAR)) \
+ || defined (NeXT) || defined (mips)) */
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+#ifndef PAGE_SIZE
+/* This value is for i386-minix, but that has no predefine.
+ Making it default will only cause confusion on machines
+ which have no proper value defined. */
+#define PAGE_SIZE 16
+#endif
+
+#define PAGSIZ PAGE_SIZE
+#define SEGSIZ SEGMENT_SIZE
+
+#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. */
+#if !defined (N_BSSADDR)
+#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
+#endif
+
+#if !defined (N_NLIST_DECLARED)
+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;
+};
+#endif /* no N_NLIST_DECLARED. */
+
+#if !defined (N_UNDF)
+#define N_UNDF 0
+#endif
+#if !defined (N_ABS)
+#define N_ABS 2
+#endif
+#if !defined (N_TEXT)
+#define N_TEXT 4
+#endif
+#if !defined (N_DATA)
+#define N_DATA 6
+#endif
+#if !defined (N_BSS)
+#define N_BSS 8
+#endif
+#if !defined (N_COMM)
+#define N_COMM 18
+#endif
+#if !defined (N_FN)
+#define N_FN 15
+#endif
+
+#if !defined (N_EXT)
+#define N_EXT 1
+#endif
+#if !defined (N_TYPE)
+#define N_TYPE 036
+#endif
+#if !defined (N_STAB)
+#define N_STAB 0340
+#endif
+
+/* 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. */
+
+#if !defined (N_RELOCATION_INFO_DECLARED)
+/* 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. */
+
+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 /* no N_RELOCATION_INFO_DECLARED. */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __A_OUT_GNU_H__ */