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authorSteve Chamberlain <sac@cygnus>1991-12-04 18:16:41 +0000
committerSteve Chamberlain <sac@cygnus>1991-12-04 18:16:41 +0000
commit4e41b5aa4004cce7343ee96a5830bc9e73f78041 (patch)
tree4a440f950f08608ac8de5b84b2c7047dc5a4f72f /bfd/aoutx.h
parent8bcad1b5b7124f284c59a961e27429d4c44af03d (diff)
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*** empty log message ***
Diffstat (limited to 'bfd/aoutx.h')
-rw-r--r--bfd/aoutx.h274
1 files changed, 166 insertions, 108 deletions
diff --git a/bfd/aoutx.h b/bfd/aoutx.h
index abc3dfb..a474937 100644
--- a/bfd/aoutx.h
+++ b/bfd/aoutx.h
@@ -18,72 +18,87 @@ 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. */
-/*doc*
-@section a.out backends
+/*
+SECTION
+ a.out backends
-BFD supports a number of different flavours of a.out format, though
-the major differences are only the sizes of the structures on disk,
-and the shape of the relocation information.
-The support is split into a basic support file @code{aoutx.h} and
-other files which derive functions from the base. One derivation file
-is @code{aoutf1.h} (for a.out flavour 1), and adds to the basic a.out
-functions support for sun3, sun4, 386 and 29k a.out files, to create a
-target jump vector for a specific target.
+DESCRIPTION
-This information is further split out into more specific files for each
-machine, including @code{sunos.c} for sun3 and sun4, @code{newsos3.c} for
-the Sony NEWS, and @code{demo64.c} for a demonstration of a 64 bit a.out
-format.
+ BFD supports a number of different flavours of a.out format,
+ though the major differences are only the sizes of the
+ structures on disk, and the shape of the relocation
+ information.
-The base file @code{aoutx.h} defines general mechanisms for reading
-and writing records to and from disk, and various other methods which
-BFD requires. It is included by @code{aout32.c} and @code{aout64.c} to
-form the names aout_32_swap_exec_header_in,
-aout_64_swap_exec_header_in, etc.
+ The support is split into a basic support file @code{aoutx.h}
+ and other files which derive functions from the base. One
+ derivation file is @code{aoutf1.h} (for a.out flavour 1), and
+ adds to the basic a.out functions support for sun3, sun4, 386
+ and 29k a.out files, to create a target jump vector for a
+ specific target.
-As an example, this is what goes on to make the back end for a sun4, from aout32.c
+ This information is further split out into more specific files
+ for each machine, including @code{sunos.c} for sun3 and sun4,
+ @code{newsos3.c} for the Sony NEWS, and @code{demo64.c} for a
+ demonstration of a 64 bit a.out format.
+
+ The base file @code{aoutx.h} defines general mechanisms for
+ reading and writing records to and from disk, and various
+ other methods which BFD requires. It is included by
+ @code{aout32.c} and @code{aout64.c} to form the names
+ aout_32_swap_exec_header_in, aout_64_swap_exec_header_in, etc.
+
+ As an example, this is what goes on to make the back end for a
+ sun4, from aout32.c
+
+EXAMPLE
-@example
#define ARCH_SIZE 32
#include "aoutx.h"
-@end example
-Which exports names:
-@example
+DESCRIPTION
+
+ Which exports names:
+
+EXAMPLE
...
aout_32_canonicalize_reloc
aout_32_find_nearest_line
aout_32_get_lineno
aout_32_get_reloc_upper_bound
...
-@end example
-from sunos.c
+DESCRIPTION
-@example
+ from sunos.c
+
+EXAMPLE
#define ARCH 32
#define TARGET_NAME "a.out-sunos-big"
#define VECNAME sunos_big_vec
#include "aoutf1.h"
-@end example
-requires all the names from aout32.c, and produces the jump vector
+DESCRIPTION
+
+ requires all the names from aout32.c, and produces the jump vector
-@example
+EXAMPLE
sunos_big_vec
-@end example
-The file host-aout.c is a special case. It is for a large set of hosts
-that use ``more or less standard'' a.out files, and for which cross-debugging
-is not interesting. It uses the standard 32-bit a.out support routines,
-but determines the file offsets and addresses of the text, data,
-and BSS sections, the machine architecture and machine type,
-and the entry point address, in a host-dependent manner. Once these
-values have been determined, generic code is used to handle the
-object file.
+DESCRIPTION
-When porting it to run on a new system, you must supply:
+ The file host-aout.c is a special case. It is for a large set
+ of hosts that use ``more or less standard'' a.out files, and
+ for which cross-debugging is not interesting. It uses the
+ standard 32-bit a.out support routines, but determines the
+ file offsets and addresses of the text, data, and BSS
+ sections, the machine architecture and machine type, and the
+ entry point address, in a host-dependent manner. Once these
+ values have been determined, generic code is used to handle
+ the object file.
+ When porting it to run on a new system, you must supply:
+
+EXAMPLE
HOST_PAGE_SIZE
HOST_SEGMENT_SIZE
HOST_MACHINE_ARCH (optional)
@@ -91,18 +106,22 @@ When porting it to run on a new system, you must supply:
HOST_TEXT_START_ADDR
HOST_STACK_END_ADDR
-in the file ../include/sys/h-XXX.h (for your host). These values, plus
-the structures and macros defined in <a.out.h> on your host system, will
-produce a BFD target that will access ordinary a.out files on your host.
+DESCRIPTION
-To configure a new machine to use host-aout.c, specify:
+ in the file ../include/sys/h-XXX.h (for your host). These
+ values, plus the structures and macros defined in <a.out.h> on
+ your host system, will produce a BFD target that will access
+ ordinary a.out files on your host. To configure a new machine
+ to use host-aout.c, specify:
-TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
-TDEPFILES= host-aout.o trad-core.o
+EXAMPLE
+ TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
+ TDEPFILES= host-aout.o trad-core.o
-in the config/mt-XXX file, and modify configure.in to use the
-mt-XXX file (by setting "bfd_target=XXX") when your configuration is
-selected.
+DESCIPTION
+ in the config/mt-XXX file, and modify configure.in to use the
+ mt-XXX file (by setting "bfd_target=XXX") when your
+ configuration is selected.
*/
@@ -122,14 +141,19 @@ struct external_exec;
void (*bfd_error_trap)();
-/*doc*
-@subsection relocations
-The file @code{aoutx.h} caters for both the @emph{standard} and
-@emph{extended} forms of a.out relocation records.
+/*
+SUBSECTION
+ relocations
+
+DESCRIPTION
+ The file @code{aoutx.h} caters for both the @emph{standard}
+ and @emph{extended} forms of a.out relocation records.
+
+ The standard records are characterised by containing only an
+ address, a symbol index and a type field. The extended records
+ (used on 29ks and sparcs) also have a full integer for an
+ addend.
-The standard records are characterised by containing only an address,
-a symbol index and a type field. The extended records (used on 29ks
-and sparcs) also have a full integer for an addend.
*/
#define CTOR_TABLE_RELOC_IDX 2
@@ -180,21 +204,31 @@ HOWTO( 7, 0, 3, 64, true, 0, false, true,0,"DISP64", true, 0xfeedfac
bfd_error_vector_type bfd_error_vector;
-/*doc*
-@subsection Internal Entry Points
-@code{aoutx.h} exports several routines for accessing the contents of
-an a.out file, which are gathered and exported in turn by various
-format specific files (eg sunos.c).
+/*
+SUBSECTION
+ Internal Entry Points
+
+DESCRIPTION
+ @code{aoutx.h} exports several routines for accessing the
+ contents of an a.out file, which are gathered and exported in
+ turn by various format specific files (eg sunos.c).
+
*/
-/*doc*
-*i aout_<size>_swap_exec_header_in
-Swaps the information in an executable header taken from a raw byte stream memory image,
-into the internal exec_header structure.
-*; PROTO(void, aout_<size>_swap_exec_header_in,
- (bfd *abfd,
- struct external_exec *raw_bytes,
- struct internal_exec *execp));
+/*
+FUNCTION
+ aout_<size>_swap_exec_header_in
+
+DESCRIPTION
+ Swaps the information in an executable header taken from a raw
+ byte stream memory image, into the internal exec_header
+ structure.
+
+EXAMPLE
+ void aout_<size>_swap_exec_header_in,
+ (bfd *abfd,
+ struct external_exec *raw_bytes,
+ struct internal_exec *execp);
*/
void
@@ -216,14 +250,19 @@ DEFUN(NAME(aout,swap_exec_header_in),(abfd, raw_bytes, execp),
execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
}
-/*doc*
-*i aout_<size>_swap_exec_header_out
-Swaps the information in an internal exec header structure into the
-supplied buffer ready for writing to disk.
-*; PROTO(void, aout_<size>_swap_exec_header_out,
+/*
+FUNCTION
+ aout_<size>_swap_exec_header_out
+
+DESCRIPTION
+ Swaps the information in an internal exec header structure
+ into the supplied buffer ready for writing to disk.
+
+EXAMPLE
+ void aout_<size>_swap_exec_header_out
(bfd *abfd,
struct internal_exec *execp,
- struct external_exec *raw_bytes));
+ struct external_exec *raw_bytes);
*/
void
DEFUN(NAME(aout,swap_exec_header_out),(abfd, execp, raw_bytes),
@@ -250,17 +289,21 @@ struct container {
};
-/*doc*
-*i aout_<size>_some_aout_object_p
+/*
+FUNCTION
+ aout_<size>_some_aout_object_p
-Some A.OUT variant thinks that the file whose format we're checking
-is an a.out file. Do some more checking, and set up for access if
-it really is. Call back to the calling environments "finish up"
-function just before returning, to handle any last-minute setup.
+DESCRIPTION
+ Some A.OUT variant thinks that the file whose format we're
+ checking is an a.out file. Do some more checking, and set up
+ for access if it really is. Call back to the calling
+ environments "finish up" function just before returning, to
+ handle any last-minute setup.
-*; PROTO(bfd_target *, aout_<size>_some_aout_object_p,
+EXAMPLE
+ bfd_target *aout_<size>_some_aout_object_p
(bfd *abfd,
- bfd_target *(*callback_to_real_object_p)()));
+ bfd_target *(*callback_to_real_object_p)());
*/
bfd_target *
@@ -415,12 +458,15 @@ DEFUN(NAME(aout,some_aout_object_p),(abfd, execp, callback_to_real_object_p),
return result;
}
-/*doc*
-*i aout_<size>_mkobject
+/*
+FUNCTION
+ aout_<size>_mkobject
-This routine initializes a BFD for use with a.out files.
+DESCRIPTION
+ This routine initializes a BFD for use with a.out files.
-*; PROTO(boolean, aout_<size>_mkobject, (bfd *));
+EXAMPLE
+ boolean aout_<size>_mkobject, (bfd *);
*/
boolean
@@ -455,17 +501,21 @@ DEFUN(NAME(aout,mkobject),(abfd),
}
-/*doc*
-*i aout_<size>_machine_type
+/*
+FUNCTION
+ aout_<size>_machine_type
-Keep track of machine architecture and machine type for a.out's.
-Return the machine_type for a particular arch&machine, or M_UNKNOWN
-if that exact arch&machine can't be represented in a.out format.
+DESCRIPTION
+ Keep track of machine architecture and machine type for
+ a.out's. Return the machine_type for a particular
+ arch&machine, or M_UNKNOWN if that exact arch&machine can't be
+ represented in a.out format.
-If the architecture is understood, machine type 0 (default) should
-always be understood.
+ If the architecture is understood, machine type 0 (default)
+ should always be understood.
-*; PROTO(enum machine_type, aout_<size>_machine_type,
+EXAMPLE
+ enum machine_type aout_<size>_machine_type
(enum bfd_architecture arch,
unsigned long machine));
*/
@@ -510,14 +560,17 @@ DEFUN(NAME(aout,machine_type),(arch, machine),
}
-/*doc*
-*i aout_<size>_set_arch_mach
+/*
+FUNCTION
+ aout_<size>_set_arch_mach
-Sets the architecture and the machine of the BFD to those values
-supplied. Verifies that the format can support the architecture
-required.
+DESCRIPTION
+ Sets the architecture and the machine of the BFD to those
+ values supplied. Verifies that the format can support the
+ architecture required.
-*; PROTO(boolean, aout_<size>_set_arch_mach,
+EXAMPLE
+ boolean aout_<size>_set_arch_mach,
(bfd *,
enum bfd_architecture,
unsigned long machine));
@@ -536,11 +589,16 @@ DEFUN(NAME(aout,set_arch_mach),(abfd, arch, machine),
return true; /* We're easy ... */
}
-/*doc*
- *i aout_<size>new_section_hook
+/*
+FUNCTION
+ aout_<size>new_section_hook
- Called by the BFD in response to a @code{bfd_make_section} request.
- *; PROTO(boolean, aout_<size>_new_section_hook,
+DESCRIPTION
+ Called by the BFD in response to a @code{bfd_make_section}
+ request.
+
+EXAMPLE
+ boolean aout_<size>_new_section_hook,
(bfd *abfd,
asection *newsect));
*/
@@ -701,9 +759,9 @@ boolean
static void
DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd),
-struct external_nlist *sym_pointer AND
-aout_symbol_type *cache_ptr AND
-bfd *abfd)
+ struct external_nlist *sym_pointer AND
+ aout_symbol_type *cache_ptr AND
+ bfd *abfd)
{
switch (cache_ptr->type & N_TYPE) {
case N_SETA: