The GNUPro® Toolkit
for eCos is a complete solution for C and C++ development for the Matsushita
MN10300/AM3x . The tools include the compiler, assembler, linker, and interactive
debugger. In addition to this manual, please read "
Getting started with
eCos ." This document consists of the following sections:
An introduction to the features
of the GNUPro Toolkit for eCos.
Describes the ABI and AM3x-specific
attributes of the main GNUPro tools.
CygMon (Cygnus ROM Monitor)
Tool naming conventions
Cross-development tools in
the Cygnus GNUPro Toolkit normally have names that reflect the target processor
and the object file format output by the tools (for example, ELF). This
makes it possible to install more than one set of tools in the same binary
directory, including both native and cross-development tools.
The complete tool name is
a three-part hyphenated string. The first part indicates the processor
family ('
mn10300').
The second part indicates the file format output by the tool ('
elf').
The third part is the generic tool name ('
gcc').
For example, the GCC compiler for the AM3x is '
mn10300-elf-gcc'.
The AM3x package includes
the following supported tools:
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mn10300-elf-nm
mn10300-elf-objcopy
mn10300-elf-objdump
mn10300-elf-ranlib
mn10300-elf-size
mn10300-elf-strings
mn10300-elf-strip |
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The binaries for a Windows NT
hosted toolchain are installed with an '.exe'
suffix. However, the '.exe'
suffix does not need to be specified when running the executable.
Toolkit features
The following describes features
of the GNUPro Toolkit for the AM3x.
Processor version(s)
This part is also sold under the Panasonic or Pana-X brand name,
as well as under the AM31 part number. Wherever Matsushita or 10300 are
used in this document, Panasonic or Pana-X should be considered identical.
Matsushita AM33
Code compiled to run on the MN10300/AM31, should also run on the AM33.
However, code compiled for the AM33 may not run on the MN10300/AM31.
Targets Supported
Matsushita MN10300 evaluation
board
Matsushita AM33 STB System Reference Board
GNUPro Instruction Set Simulator with architectural extensions to support
eCos execution for the MN10300/AM31
All targets run in little-endian mode.
Hosts Supported
Object file format
The AM3x tools support the
ELF object file format. Refer to Chapter 4,
System V Application Binary
Interface (Prentice Hall, 1990.). Use '
ld'
(refer to
Using LD in
GNUPro Utilities ) or '
objcopy'
(refer to
The GNU Binary Utilities in
GNUPro Utilities
) to produce S-records.
GNUPro on Windows NT
Windows environment settings
The Windows NT hosted toolchain requires
the following environmental settings to function properly. Assuming the
release is installed in:
C:\Program
Files\Cygnus Solutions\eCos\ecos-99r1-990828
SET
PROOT=C:\Program Files\Cygnus Solutions\eCos\ecos-99r1-990828
SET
PATH=%PROOT%\H-i686-cygwin32\bin;%PATH%
SET
INFOPATH=%PROOT%\info
REM
Set TMPDIR to point to a ramdisk if you have one
A working environment can
be established by using the following shortcut from the Windows Start menu:
Programs->Cygnus
eCos->eCos Development Environment
This will bring up a window
running "bash", and your Windows environment will be automatically set
up.
Case Sensitivity
The following strings are
case sensitive under Windows NT:
-
command line options
-
assembler labels
-
linker script commands
-
section names
-
file names within makefiles
The following strings are
not case sensitive under Windows NT:
-
gdb commands
-
assembler instructions and register names
Case sensitivity
for Windows NT is dependent on system configuration. By default, file names
under Windows NT are not case sensitive.