OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [scripts/] [README] - Blame information for rev 272

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback
 
2
        RPM support for BSPs
3
        ====================
4
 
5
Introduction
6
------------
7
 
8
Building an rpm requires to have a tar archive of the sources, and a
9
rpm-spec files specifying the details of building.
10
 
11
To support per bsp rpms, one rpm-spec is used per BSP.
12
Instead of writing one rpm-spec for each BSP, I have written a shell script
13
(mkspec) which generates one *.spec (rtems--.spec) per BSP
14
bsp from an rpm-spec template (rtems.spec.in).
15
 
16
A second shell script (mkrpms) is a convienience script which invokes a
17
sequence of building rpms for several bsps.
18
 
19
 
20
mkbinutilspec
21
-------------
22
 
23
mkbinutilspec takes two arguments:
24
 
25
$1 ... the target_alias for binutils RPMs of this toolset
26
 
27
Invoking mkbinutilspec will generate a -binutils.spec either in
28
 
29
    /usr/src/packages/SPECS (SuSE convention) or
30
    /usr/src/redhat/SPECS (Redhat convention) or
31
    /usr/src/SPECS
32
 
33
Eg. ./mkbinutilspec sparc-rtems generates
34
 
35
On SuSE-6.2:   /usr/src/packages/SPECS/sparc-rtems-binutils.spec
36
On RedHat 6.0: /usr/src/redhat/SPECS/sparc-rtems-binutils.spec
37
 
38
mkgccnewlibspec
39
---------------
40
 
41
mkgccnewlibspec takes two arguments:
42
 
43
$1 ... the target_alias for the gcc/newlib RPMs of this toolset
44
 
45
Invoking mkgccnewlibspec will generate a -gccnewlibs.spec
46
either in:
47
 
48
    /usr/src/packages/SPECS (SuSE convention) or
49
    /usr/src/redhat/SPECS (Redhat convention) or
50
    /usr/src/SPECS
51
 
52
Eg. ./mkgccnewlibspec sparc-rtems generates
53
 
54
On SuSE-6.2:   /usr/src/packages/SPECS/sparc-rtems-gcc_newlib.spec
55
On RedHat 6.0: /usr/src/redhat/SPECS/sparc-rtems-gcc_newlib.spec
56
 
57
mkgdbspec
58
---------
59
 
60
mkgdbspec takes two arguments:
61
 
62
$1 ... the target_alias for the gdb RPMs of this toolset
63
 
64
Invoking mkgdbspec will generate a -gdb.spec
65
either in:
66
 
67
    /usr/src/packages/SPECS (SuSE convention) or
68
    /usr/src/redhat/SPECS (Redhat convention) or
69
    /usr/src/SPECS
70
 
71
Eg. ./mkgdbspec sparc-rtems generates
72
 
73
On SuSE-6.2:   /usr/src/packages/SPECS/sparc-rtems-gcc_newlib.spec
74
On RedHat 6.0: /usr/src/redhat/SPECS/sparc-rtems-gcc_newlib.spec
75
 
76
 
77
# XXX BSPs not tested yet by Joel
78
#
79
#  mkbspspec
80
#  ---------
81
#
82
#  mkbspspec takes two arguments:
83
#  $1 ... the target_alias this bsp belongs to
84
#  $2 ... the bsp to be built
85
#
86
#  Invoking mkbspspec will generate a rtems--.spec either in
87
#  /usr/src/packages/SPECS (SuSE convention) or
88
#  /usr/src/redhat/SPECS (Redhat convention) or
89
#  /usr/src/SPECS
90
#
91
#  Eg. ./mkspec gensh1 sh-rtemself generates
92
#  /usr/src/packages/SPECS/rtems-sh-rtemself-gensh1.spec on SuSE-6.2.
93
 
94
mkspec
95
---------
96
 
97
mkspec takes two arguments:
98
 
99
$1 ... the target_alias for the RPMs composing this toolset
100
$2 ... the bsp to be built
101
 
102
Invoking mkspec will generate a set of spec files either in:
103
 
104
    /usr/src/packages/SPECS (SuSE convention) or
105
    /usr/src/redhat/SPECS (Redhat convention) or
106
    /usr/src/SPECS
107
 
108
Eg. ./mkspec sparc-rtems erc32 generates
109
 
110
On SuSE-6.2:   /usr/src/packages/SPECS/sparc-rtems-binutils.spec
111
               /usr/src/packages/SPECS/sparc-rtems-gcc_newlib.spec
112
               /usr/src/packages/SPECS/sparc-rtems-gdb.spec
113
On RedHat 6.0: /usr/src/packages/SPECS/sparc-rtems-binutils.spec
114
               /usr/src/packages/SPECS/sparc-rtems-gcc_newlib.spec
115
               /usr/src/packages/SPECS/sparc-rtems-gdb.spec
116
 
117
 
118
Building binutils-rpms
119
----------------------
120
 
121
0. Login as root.
122
 
123
1. Install a tarball of the various tool sources (with the
124
version number attached!) to /usr/src/[packages|redhat]/SOURCES
125
 
126
  cd /usr/src/[packages|redhat]/SOURCES
127
  cp .../binutils-  .
128
  cp .../binutils--rtems-.diff  .
129
 
130
2. Generate and install the required rpm-spec file[s]
131
 
132
cd rtems-/scripts/
133
mkbinutilspec 
134
 
135
where target_alias is of the form sparc-rtems or sh-rtems-elf.
136
 
137
3. Build the rpms
138
 
139
Building a binary rpm:
140
 
141
rpm -bb /usr/src/[packages|redhat]/SPECS/rtems--binutils.spec
142
 
143
Building a source and binary rpm
144
rpm -ba /usr/src/[packages|redhat]/SPECS/rtems--binutils.spec
145
 
146
XXX Note: a BSP's src.rpm contains its spec-file and the tar-archive of the
147
sources (approx. 4-5MB per BSP).
148
 
149
Building TOOL-rpms
150
------------------
151
 
152
0. Login as root.
153
 
154
1. Install a tarball of the various tool sources (with the
155
version number attached!) to /usr/src/[packages|redhat]/SOURCES
156
 
157
  cd /usr/src/[packages|redhat]/SOURCES
158
  cp .../binutils-  .
159
  cp .../gcc-       .
160
  cp .../newlib-    .
161
 
162
2. Generate and install the required rpm-spec file[s]
163
 
164
cd rtems-/scripts/
165
mktoolspec 
166
 
167
3. Build the rpms
168
 
169
Building a binary rpm:
170
rpm -bb /usr/src/[packages|redhat]/SPECS/rtems-.spec
171
 
172
Building a source and binary rpm
173
rpm -ba /usr/src/[packages|redhat]/SPECS/rtems-.spec
174
 
175
XXX Note: a BSP's src.rpm contains its spec-file and the tar-archive of the
176
sources (approx. 4-5MB per BSP).
177
 
178
Building BSP-rpms
179
-----------------
180
 
181
0. Login as root.
182
 
183
1. Install a tarball of RTEMS's sources (with version number attached!) to
184
/usr/src/[packages|redhat]/SOURCES
185
Eg.
186
tar czvf /usr/src/packages/SOURCES/rtems-.tar.gz rtems-
187
 
188
2. Generate and install the required rpm-spec file[s]
189
cd rtems-/scripts/
190
mkspec  
191
 
192
3. Build the rpms
193
Building a binary rpm:
194
rpm -bb /usr/src/[packages|redhat]/SPECS/rtems--.spec
195
 
196
Building a source and binary rpm
197
rpm -ba /usr/src/[packages|redhat]/SPECS/rtems--.spec
198
 
199
Note: a BSP's src.rpm contains its spec-file and the tar-archive of the
200
sources (approx. 4-5MB per BSP).
201
 
202
Known Bugs/Deficiencies
203
-----------------------
204
 
205
* All files mentioned in here are in its early infancy ;-)
206
 
207
* Building for a single bsp requires an own copy of the source tree inside
208
rpm's build directory.
209
* Building inside the RTEMS source tree doesn't work.
210
* Dependencies on toolchain-rpms not yet supported in rtems.spec.in.
211
* Installing multiple binary bsp rpms for the same target can cause
212
warnings from rpm, because these bsp-rpms share files.
213
* rtems.spec.in is prepared for rpm relocation support, but RTEMS is not
214
relocatible (yet?)
215
* rtems.spec.in deserves to be extended (description, authors etc)
216
* The final packaging stage to build a binary rpm takes an awful lot of
217
time - deserves to be investigated.
218
* Some RTEMS's cross executables (eg. hello.exe for sparc-rtems/erc32) cause
219
warnings from rpm and/or objdump. AFAIS, this is a bug in rpm.
220
* Probably many more ...
221
 
222
* Last but not least: RTEMS should be split.
223
 
224
Remarks
225
-------
226
* It would make sense to split RTEMS host/cross-tools and files depending on
227
the target only (/make/*.cfg -- Whow, RTEMS really has files
228
which depend on the target only :) into separate rpms.
229
* Instead of using a single rpm-spec for each bsp, RTEMS could also use a
230
single rpm-spec for all (or at least a given subset of all) bsps of a target.
231
* rpm -b[b|a] leaves its built trees unpacked in
232
/usr/src/[packages|redhat]/BUILD. Therefore you will rather soon run out of disc
233
space if not removing them. (Use rpm --clean -b[a|b] for cleaning them up
234
automatically after building)
235
* The size of binary rpms can differ up to one magnitude depending on the
236
target/bsp (eg. sh-rtems/gensh1 ~10MB vs. sh-rtemself/gensh1 ~32MB)
237
 
238
Ralf Corsepius, 1999/10/14

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.