[417fcc73] | 1 | @c |
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| 2 | @c COPYRIGHT (c) 1988-1998. |
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| 3 | @c On-Line Applications Research Corporation (OAR). |
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| 4 | @c All rights reserved. |
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| 5 | @c |
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| 6 | @c $Id$ |
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| 7 | @c |
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| 8 | |
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[6113b3a] | 9 | @chapter Building the GNU C/C++ Cross Compiler Toolset |
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| 10 | |
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| 11 | @section Get all the pieces |
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| 12 | |
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| 13 | The tree structure in the figure below is assumed to be present in the |
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| 14 | following discussions: |
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| 15 | |
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| 16 | Gather the components that will be required for the installation and place |
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| 17 | them in an archive directory. Call this directory arc. Be sure that there |
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| 18 | is sufficient space to hold all necessary information. This will amount to |
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| 19 | approximately 20 megabytes. |
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| 20 | |
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| 21 | @example |
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| 22 | egcs 1.0.2 |
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| 23 | FTP Site: egcs.cygnus.com |
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| 24 | Directory: /pub/egcs/releases/egcs-1.0.2 |
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| 25 | File: egcs-1.0.2-980309-prerelease.tar.gz |
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| 26 | |
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| 27 | binutils 2.8.1 |
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| 28 | FTP Site: ftp.gnu.org |
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| 29 | Directory: /pub/gnu |
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| 30 | File: binutils-2.8.1.tar.gz |
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| 31 | |
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| 32 | newlib 1.8.0 |
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| 33 | FTP Site: ftp.cygnus.com |
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| 34 | Directory: /pub/newlib |
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| 35 | File: newlib-1.8.0.tar.gz |
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| 36 | |
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| 37 | RTEMS @value{version} |
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| 38 | FTP Site: ftp.oarcorp.com |
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| 39 | Directory: /oarcorp/private/snapshots |
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| 40 | File: rtems-980219.tgz |
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| 41 | File: bit |
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| 42 | File: binutils-2.8.1-rtems-diff-971221.gz |
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| 43 | File: newlib-1.8.0-diff.980120.gz |
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| 44 | File: simple_app.tgz |
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| 45 | @end example |
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| 46 | |
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| 47 | |
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| 48 | @section Create the tools directory |
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[417fcc73] | 49 | |
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[6113b3a] | 50 | Create a directory called tools that will serve as a working directory to |
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| 51 | perform the build of the cross compiler tools. |
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[417fcc73] | 52 | |
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[6113b3a] | 53 | Unpack the compressed tar files using the following command sequence: |
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[417fcc73] | 54 | |
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| 55 | @example |
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| 56 | cd tools |
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[6113b3a] | 57 | tar xzf ../arc/egcs-1.0.2-980309-prerelease.tar.gz |
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| 58 | tar xzf ../arc/binutls-2.8.1.tar.gz |
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| 59 | tar xzf ../arc/newlib-1.8.0.tar.gz |
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[417fcc73] | 60 | @end example |
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| 61 | |
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[6113b3a] | 62 | After the compressed tar files have been unpacked, the following |
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| 63 | directories will have been created under tools. |
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| 64 | |
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| 65 | @itemize @bullet |
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| 66 | @item binutils-2.8.1 |
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| 67 | @item egcs-1.0.2 |
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| 68 | @item newlib-1.8.0 |
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| 69 | @end itemize |
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| 70 | |
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| 71 | @section Apply patches for newlib |
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[417fcc73] | 72 | |
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[6113b3a] | 73 | Apply the patches using the following command sequence: |
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[417fcc73] | 74 | |
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| 75 | @example |
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[6113b3a] | 76 | cd tools/newlib-1.8.0 |
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| 77 | zcat arc/newlib-1.8.0-diff.980120.gz|patch -p1 |
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[417fcc73] | 78 | @end example |
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| 79 | |
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[6113b3a] | 80 | Check to see if any of these patches have been rejected using the following |
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| 81 | sequence: |
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| 82 | |
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| 83 | @example |
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| 84 | cd tools/newlib-1.8.0 |
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| 85 | find . -name "*.rej" -print |
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| 86 | @end example |
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[417fcc73] | 87 | |
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[6113b3a] | 88 | If any files are found with the .rej extension, a patch has been rejected. |
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| 89 | This should not happen with a good patch file. |
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| 90 | |
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| 91 | To see the files that have been modified use the sequence: |
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[417fcc73] | 92 | |
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| 93 | @example |
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[6113b3a] | 94 | cd tools/newlib-1.8.0 |
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| 95 | find . -name "*.orig" -print |
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[417fcc73] | 96 | @end example |
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| 97 | |
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[6113b3a] | 98 | The files that are found, have been modified by the patch file. |
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| 99 | |
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| 100 | |
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| 101 | @section Apply patches for binutils |
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| 102 | |
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| 103 | Apply the patches using the following command sequence: |
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| 104 | |
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| 105 | @example |
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| 106 | cd tools/binutils-2.8.1 |
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| 107 | zcat arc/binutils-2.8.1-rtems-diff-971221.gz|patch -p1 |
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| 108 | @end example |
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| 109 | |
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| 110 | Check to see if any of these patches have been rejected using the following |
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| 111 | sequence: |
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| 112 | |
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| 113 | @example |
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| 114 | cd tools/binutils-2.8.1 |
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| 115 | find . -name "*.rej" -print |
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| 116 | @end example |
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| 117 | |
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| 118 | If any files are found with the .rej extension, a patch has been rejected. |
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| 119 | This should not happen with a good patch file. |
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| 120 | |
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| 121 | To see the files that have been modified use the sequence: |
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[417fcc73] | 122 | |
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| 123 | @example |
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[6113b3a] | 124 | cd tools/binutils-2.8.1 |
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| 125 | find . -name "*.orig" -print |
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[417fcc73] | 126 | @end example |
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| 127 | |
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[6113b3a] | 128 | The files that are found, have been modified by the patch file. |
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| 129 | |
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| 130 | @section Modify the bit script |
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| 131 | |
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| 132 | Copy the bit file from arc to the tools directory. |
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| 133 | |
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| 134 | Edit the bit file to alter the following environmental variables: |
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| 135 | |
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| 136 | @itemize @bullet |
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| 137 | @item INSTALL_POINT |
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| 138 | @item BINUTILS |
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| 139 | @item NEWLIB |
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| 140 | @item GCC |
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| 141 | @item BUILD_DOCS |
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| 142 | @end itemize |
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| 143 | |
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| 144 | These variables are located in the script section that resembles the |
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| 145 | extract below: |
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| 146 | |
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| 147 | |
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| 148 | @example |
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| 149 | # USERCHANGE -- localize these. |
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| 150 | # |
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| 151 | # INSTALL_POINT: Directory tools are installed into. |
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| 152 | # Recommended installation point for various OS's: |
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| 153 | # Linux: /usr/local/rtems |
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| 154 | # Solaris: /opt/gnu/rtems |
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| 155 | # BINUTILS: Binutils source directory |
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| 156 | # NEWLIB: Newlib source directory |
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| 157 | # GCC: Newlib source directory |
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| 158 | # BUILD_DOCS: Set to "yes" if you want to install documentation. |
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| 159 | # |
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| 160 | BINUTILS=gas-971208 |
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| 161 | GCC=egcs-1.0.1 |
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| 162 | NEWLIB=newlib-1.8.0 |
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| 163 | BUILD_DOCS=yes |
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| 164 | INSTALL_POINT=/home/joel/$@{GCC@}/$@{target@} |
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| 165 | |
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| 166 | # USERCHANGE - uncomment this if you want to watch the commands. |
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| 167 | @end example |
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| 168 | |
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| 169 | |
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[417fcc73] | 170 | Where: |
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| 171 | |
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[6113b3a] | 172 | @table @code |
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| 173 | @item INSTALL_POINT |
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| 174 | is the location where you wish the GNU C/C++ cross compilation tools for |
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| 175 | RTEMS to be built. It is recommended that the directory chosen to receive |
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| 176 | these tools be named so that it is clear from which egcs distribution it |
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| 177 | was generated and for which target system the tools are to produce code for. |
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| 178 | |
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| 179 | @item BINUTILS |
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| 180 | is the directory under tools that contains binutils-2.8.1. |
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| 181 | BINUTILS=binutils-2.8.1 |
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| 182 | |
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| 183 | @item GCC |
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| 184 | is the directory under tools that contains egcs-1.0.1. |
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| 185 | GCC=egcs-1.0.2-980309-prerelease |
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[417fcc73] | 186 | |
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[6113b3a] | 187 | @item NEWLIB |
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| 188 | is the directory under tools that contains newlib-1.8.0. |
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| 189 | NEWLIB=newlib-1.8.0 |
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[417fcc73] | 190 | |
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[6113b3a] | 191 | @item BUILD_DOCS |
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| 192 | is set to "yes" if you want to install documentation. |
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| 193 | BUILD_DOCS=yes |
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| 194 | |
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| 195 | @end table |
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| 196 | |
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| 197 | @section Running the bit script |
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| 198 | |
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| 199 | Run the modified bit script using the following sequence: |
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| 200 | |
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| 201 | @example |
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| 202 | cd tools |
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| 203 | ./bit <target configuration> |
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| 204 | @end example |
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| 205 | |
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| 206 | Where: |
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| 207 | |
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| 208 | <target configuration> is one of the following: |
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| 209 | |
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| 210 | @example |
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| 211 | hppa1.1 |
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| 212 | i386 |
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| 213 | i386-elf |
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| 214 | i386-go32 |
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| 215 | i960 |
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| 216 | m68k |
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| 217 | mips64orion |
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| 218 | powerpc |
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| 219 | sh |
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| 220 | sparc |
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| 221 | @end example |
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[417fcc73] | 222 | |
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[6113b3a] | 223 | @section GNU C/C++ cross compiler toolset complete |
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| 224 | |
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| 225 | At this point the GNU C/C++ cross compile tools should be built. |
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[417fcc73] | 226 | |
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