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author | cvs2svn <> | 2000-02-22 19:18:14 +0300 |
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committer | cvs2svn <> | 2000-02-22 19:18:14 +0300 |
commit | 12fa8278c17986cf8c1457dffbc3a17ec04be65e (patch) | |
tree | 50af885431648a3d53e99b1b2749c10710c7b668 /include/aout/sun4.h | |
parent | 929ce68fe67a171b2e3ff506450ca893ed6532b3 (diff) |
This commit was manufactured by cvs2svn to create tag 'egcs_20000222'.egcs_20000222
Sprout from cygnus 2000-02-22 16:18:13 UTC Ian Lance Taylor <iant@google.com> 'import libiberty from egcs'
Delete:
COPYING
COPYING.LIB
ChangeLog
Makefile.in
README
config-ml.in
config.guess
config.if
config.sub
config/ChangeLog
config/acinclude.m4
config/mh-a68bsd
config/mh-aix386
config/mh-aix43
config/mh-apollo68
config/mh-armpic
config/mh-cxux
config/mh-cygwin
config/mh-decstation
config/mh-delta88
config/mh-dgux
config/mh-dgux386
config/mh-djgpp
config/mh-elfalphapic
config/mh-hp300
config/mh-hpux
config/mh-hpux8
config/mh-interix
config/mh-irix4
config/mh-irix5
config/mh-irix6
config/mh-lynxos
config/mh-lynxrs6k
config/mh-m68kpic
config/mh-mingw32
config/mh-ncr3000
config/mh-ncrsvr43
config/mh-necv4
config/mh-papic
config/mh-ppcpic
config/mh-riscos
config/mh-sco
config/mh-solaris
config/mh-sparcpic
config/mh-sun3
config/mh-sysv
config/mh-sysv4
config/mh-sysv5
config/mh-vaxult2
config/mh-x86pic
config/mpw-mh-mpw
config/mpw/ChangeLog
config/mpw/MoveIfChange
config/mpw/README
config/mpw/forward-include
config/mpw/g-mpw-make.sed
config/mpw/mpw-touch
config/mpw/mpw-true
config/mpw/null-command
config/mpw/open-brace
config/mpw/tr-7to8-src
config/mpw/true
config/mt-armpic
config/mt-d30v
config/mt-elfalphapic
config/mt-linux
config/mt-m68kpic
config/mt-netware
config/mt-ospace
config/mt-papic
config/mt-ppcpic
config/mt-sparcpic
config/mt-v810
config/mt-x86pic
configure
configure.bat
configure.in
etc/ChangeLog
etc/Makefile.in
etc/add-log.el
etc/add-log.vi
etc/configbuild.ein
etc/configbuild.fig
etc/configbuild.jin
etc/configbuild.tin
etc/configdev.ein
etc/configdev.fig
etc/configdev.jin
etc/configdev.tin
etc/configure
etc/configure.in
etc/configure.texi
etc/make-stds.texi
etc/standards.texi
include/aout/ChangeLog
include/aout/adobe.h
include/aout/aout64.h
include/aout/ar.h
include/aout/dynix3.h
include/aout/encap.h
include/aout/host.h
include/aout/hp.h
include/aout/hp300hpux.h
include/aout/hppa.h
include/aout/ranlib.h
include/aout/reloc.h
include/aout/stab.def
include/aout/stab_gnu.h
include/aout/sun4.h
include/bfdlink.h
include/bout.h
include/callback.h
include/coff/ChangeLog
include/coff/a29k.h
include/coff/alpha.h
include/coff/apollo.h
include/coff/arm.h
include/coff/aux-coff.h
include/coff/ecoff.h
include/coff/go32exe.h
include/coff/h8300.h
include/coff/h8500.h
include/coff/i386.h
include/coff/i860.h
include/coff/i960.h
include/coff/internal.h
include/coff/m68k.h
include/coff/m88k.h
include/coff/mcore.h
include/coff/mips.h
include/coff/pe.h
include/coff/powerpc.h
include/coff/rs6000.h
include/coff/sh.h
include/coff/sparc.h
include/coff/sym.h
include/coff/symconst.h
include/coff/tic30.h
include/coff/tic80.h
include/coff/w65.h
include/coff/we32k.h
include/coff/z8k.h
include/dis-asm.h
include/elf/ChangeLog
include/elf/alpha.h
include/elf/arc.h
include/elf/arm-oabi.h
include/elf/arm.h
include/elf/common.h
include/elf/d10v.h
include/elf/d30v.h
include/elf/dwarf.h
include/elf/dwarf2.h
include/elf/external.h
include/elf/fr30.h
include/elf/hppa.h
include/elf/i386.h
include/elf/internal.h
include/elf/m32r.h
include/elf/m68k.h
include/elf/mcore.h
include/elf/mips.h
include/elf/mn10200.h
include/elf/mn10300.h
include/elf/ppc.h
include/elf/reloc-macros.h
include/elf/sh.h
include/elf/sparc.h
include/elf/v850.h
include/fopen-bin.h
include/fopen-same.h
include/fopen-vms.h
include/gdbm.h
include/hp-symtab.h
include/ieee.h
include/mpw/ChangeLog
include/mpw/README
include/mpw/dir.h
include/mpw/dirent.h
include/mpw/fcntl.h
include/mpw/grp.h
include/mpw/mpw.h
include/mpw/pwd.h
include/mpw/spin.h
include/mpw/stat.h
include/mpw/sys/file.h
include/mpw/sys/param.h
include/mpw/sys/resource.h
include/mpw/sys/stat.h
include/mpw/sys/time.h
include/mpw/sys/types.h
include/mpw/utime.h
include/mpw/varargs.h
include/nlm/ChangeLog
include/nlm/alpha-ext.h
include/nlm/common.h
include/nlm/external.h
include/nlm/i386-ext.h
include/nlm/internal.h
include/nlm/ppc-ext.h
include/nlm/sparc32-ext.h
include/oasys.h
include/opcode/ChangeLog
include/opcode/a29k.h
include/opcode/alpha.h
include/opcode/arc.h
include/opcode/arm.h
include/opcode/cgen.h
include/opcode/convex.h
include/opcode/d10v.h
include/opcode/d30v.h
include/opcode/h8300.h
include/opcode/hppa.h
include/opcode/i386.h
include/opcode/i860.h
include/opcode/i960.h
include/opcode/m68k.h
include/opcode/m88k.h
include/opcode/mips.h
include/opcode/mn10200.h
include/opcode/mn10300.h
include/opcode/np1.h
include/opcode/ns32k.h
include/opcode/pn.h
include/opcode/ppc.h
include/opcode/pyr.h
include/opcode/sparc.h
include/opcode/tahoe.h
include/opcode/tic30.h
include/opcode/tic80.h
include/opcode/v850.h
include/opcode/vax.h
include/os9k.h
include/progress.h
include/regs/ChangeLog
include/remote-sim.h
include/wait.h
install-sh
ltconfig
ltmain.sh
makeall.bat
makefile.vms
missing
mkinstalldirs
move-if-change
mpw-README
mpw-build.in
mpw-config.in
mpw-configure
mpw-install
setup.com
symlink-tree
ylwrap
Diffstat (limited to 'include/aout/sun4.h')
-rw-r--r-- | include/aout/sun4.h | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/include/aout/sun4.h b/include/aout/sun4.h deleted file mode 100644 index f42a0dd45..000000000 --- a/include/aout/sun4.h +++ /dev/null @@ -1,219 +0,0 @@ -/* SPARC-specific values for a.out files */ - -/* Some systems, e.g., AIX, may have defined this in header files already - included. */ -#undef TARGET_PAGE_SIZE -#define TARGET_PAGE_SIZE 0x2000 /* 8K. aka NBPG in <sys/param.h> */ -/* Note that some SPARCs have 4K pages, some 8K, some others. */ - -#define SEG_SIZE_SPARC TARGET_PAGE_SIZE -#define SEG_SIZE_SUN3 0x20000 /* Resolution of r/w protection hw */ - -#define TEXT_START_ADDR TARGET_PAGE_SIZE /* Location 0 is not accessible */ -#define N_HEADER_IN_TEXT(x) 1 - -/* Non-default definitions of the accessor macros... */ - -/* Segment size varies on Sun-3 versus Sun-4. */ - -#define N_SEGSIZE(x) (N_MACHTYPE(x) == M_SPARC? SEG_SIZE_SPARC: \ - N_MACHTYPE(x) == M_68020? SEG_SIZE_SUN3: \ - /* Guess? */ TARGET_PAGE_SIZE) - -/* Virtual Address of text segment from the a.out file. For OMAGIC, - (almost always "unlinked .o's" these days), should be zero. - Sun added a kludge so that shared libraries linked ZMAGIC get - an address of zero if a_entry (!!!) is lower than the otherwise - expected text address. These kludges have gotta go! - For linked files, should reflect reality if we know it. */ - -/* This differs from the version in aout64.h (which we override by defining - it here) only for NMAGIC (we return TEXT_START_ADDR+EXEC_BYTES_SIZE; - they return 0). */ - -#define N_TXTADDR(x) \ - (N_MAGIC(x)==OMAGIC? 0 \ - : (N_MAGIC(x) == ZMAGIC && (x).a_entry < TEXT_START_ADDR)? 0 \ - : TEXT_START_ADDR+EXEC_BYTES_SIZE) - -/* When a file is linked against a shared library on SunOS 4, the - dynamic bit in the exec header is set, and the first symbol in the - symbol table is __DYNAMIC. Its value is the address of the - following structure. */ - -struct external_sun4_dynamic -{ - /* The version number of the structure. SunOS 4.1.x creates files - with version number 3, which is what this structure is based on. - According to gdb, version 2 is similar. I believe that version 2 - used a different type of procedure linkage table, and there may - have been other differences. */ - bfd_byte ld_version[4]; - /* The virtual address of a 28 byte structure used in debugging. - The contents are filled in at run time by ld.so. */ - bfd_byte ldd[4]; - /* The virtual address of another structure with information about - how to relocate the executable at run time. */ - bfd_byte ld[4]; -}; - -/* The size of the debugging structure pointed to by the debugger - field of __DYNAMIC. */ -#define EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE (24) - -/* The structure pointed to by the linker field of __DYNAMIC. As far - as I can tell, most of the addresses in this structure are offsets - within the file, but some are actually virtual addresses. */ - -struct internal_sun4_dynamic_link -{ - /* Linked list of loaded objects. This is filled in at runtime by - ld.so and probably by dlopen. */ - unsigned long ld_loaded; - - /* The address of the list of names of shared objects which must be - included at runtime. Each entry in the list is 16 bytes: the 4 - byte address of the string naming the object (e.g., for -lc this - is "c"); 4 bytes of flags--the high bit is whether to search for - the object using the library path; the 2 byte major version - number; the 2 byte minor version number; the 4 byte address of - the next entry in the list (zero if this is the last entry). The - version numbers seem to only be non-zero when doing library - searching. */ - unsigned long ld_need; - - /* The address of the path to search for the shared objects which - must be included. This points to a string in PATH format which - is generated from the -L arguments to the linker. According to - the man page, ld.so implicitly adds ${LD_LIBRARY_PATH} to the - beginning of this string and /lib:/usr/lib:/usr/local/lib to the - end. The string is terminated by a null byte. This field is - zero if there is no additional path. */ - unsigned long ld_rules; - - /* The address of the global offset table. This appears to be a - virtual address, not a file offset. The first entry in the - global offset table seems to be the virtual address of the - sun4_dynamic structure (the same value as the __DYNAMIC symbol). - The global offset table is used for PIC code to hold the - addresses of variables. A dynamically linked file which does not - itself contain PIC code has a four byte global offset table. */ - unsigned long ld_got; - - /* The address of the procedure linkage table. This appears to be a - virtual address, not a file offset. - - On a SPARC, the table is composed of 12 byte entries, each of - which consists of three instructions. The first entry is - sethi %hi(0),%g1 - jmp %g1 - nop - These instructions are changed by ld.so into a jump directly into - ld.so itself. Each subsequent entry is - save %sp, -96, %sp - call <address of first entry in procedure linkage table> - <reloc_number | 0x01000000> - The reloc_number is the number of the reloc to use to resolve - this entry. The reloc will be a JMP_SLOT reloc against some - symbol that is not defined in this object file but should be - defined in a shared object (if it is not, ld.so will report a - runtime error and exit). The constant 0x010000000 turns the - reloc number into a sethi of %g0, which does nothing since %g0 is - hardwired to zero. - - When one of these entries is executed, it winds up calling into - ld.so. ld.so looks at the reloc number, available via the return - address, to determine which entry this is. It then looks at the - reloc and patches up the entry in the table into a sethi and jmp - to the real address followed by a nop. This means that the reloc - lookup only has to happen once, and it also means that the - relocation only needs to be done if the function is actually - called. The relocation is expensive because ld.so must look up - the symbol by name. - - The size of the procedure linkage table is given by the ld_plt_sz - field. */ - unsigned long ld_plt; - - /* The address of the relocs. These are in the same format as - ordinary relocs. Symbol index numbers refer to the symbols - pointed to by ld_stab. I think the only way to determine the - number of relocs is to assume that all the bytes from ld_rel to - ld_hash contain reloc entries. */ - unsigned long ld_rel; - - /* The address of a hash table of symbols. The hash table has - roughly the same number of entries as there are dynamic symbols; - I think the only way to get the exact size is to assume that - every byte from ld_hash to ld_stab is devoted to the hash table. - - Each entry in the hash table is eight bytes. The first four - bytes are a symbol index into the dynamic symbols. The second - four bytes are the index of the next hash table entry in the - bucket. The ld_buckets field gives the number of buckets, say B. - The first B entries in the hash table each start a bucket which - is chained through the second four bytes of each entry. A value - of zero ends the chain. - - The hash function is simply - h = 0; - while (*string != '\0') - h = (h << 1) + *string++; - h &= 0x7fffffff; - - To look up a symbol, compute the hash value of the name. Take - the modulos of hash value and the number of buckets. Start at - that entry in the hash table. See if the symbol (from the first - four bytes of the hash table entry) has the name you are looking - for. If not, use the chain field (the second four bytes of the - hash table entry) to move on to the next entry in this bucket. - If the chain field is zero you have reached the end of the - bucket, and the symbol is not in the hash table. */ - unsigned long ld_hash; - - /* The address of the symbol table. This is a list of - external_nlist structures. The string indices are relative to - the ld_symbols field. I think the only way to determine the - number of symbols is to assume that all the bytes between ld_stab - and ld_symbols are external_nlist structures. */ - unsigned long ld_stab; - - /* I don't know what this is for. It seems to always be zero. */ - unsigned long ld_stab_hash; - - /* The number of buckets in the hash table. */ - unsigned long ld_buckets; - - /* The address of the symbol string table. The first string in this - string table need not be the empty string. */ - unsigned long ld_symbols; - - /* The size in bytes of the symbol string table. */ - unsigned long ld_symb_size; - - /* The size in bytes of the text segment. */ - unsigned long ld_text; - - /* The size in bytes of the procedure linkage table. */ - unsigned long ld_plt_sz; -}; - -/* The external form of the structure. */ - -struct external_sun4_dynamic_link -{ - bfd_byte ld_loaded[4]; - bfd_byte ld_need[4]; - bfd_byte ld_rules[4]; - bfd_byte ld_got[4]; - bfd_byte ld_plt[4]; - bfd_byte ld_rel[4]; - bfd_byte ld_hash[4]; - bfd_byte ld_stab[4]; - bfd_byte ld_stab_hash[4]; - bfd_byte ld_buckets[4]; - bfd_byte ld_symbols[4]; - bfd_byte ld_symb_size[4]; - bfd_byte ld_text[4]; - bfd_byte ld_plt_sz[4]; -}; |