4.104.114.84.95
Last change
on this file since 955a9ba7 was
955a9ba7,
checked in by Joel Sherrill <joel.sherrill@…>, on 12/01/99 at 15:05:26
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Patch rtems-rc-19991123-rc-2.diff from Ralf Corsepius
<corsepiu@…> which implements automake support for some
score/cpu/<RTEMS_CPU> subdirectories and fixes a few minor configuration
bugs.
To apply:
rm -rf c/src/exec/score/cpu/a29k/wrap
rm -rf c/src/exec/score/cpu/hppa1.1/wrap
rm -rf c/src/exec/score/cpu/i386/wrap
rm -rf c/src/exec/score/cpu/mips64orion/wrap
rm -rf c/src/exec/score/cpu/no_cpu/wrap
patch -p1 < rtems-rc-19991123-rc-2.diff.gz
Notes:
- I don't see a possiblity to convert the powerpc subdirectory in its
current layout to automake the time being.
- Besides the fact that this subdirectory is not in single-tree building
layout, the actual showstopper is the ifeq $(RTEMS_CPU_MODEL),mpc750)
gmake-conditional in powerpc/Makefile.in, which automake (correctly)
refuses to handle.
- The problem is *not* specific to the powerpc. Other CPUs basically
have similar problems (SH:sh7032 vs sh7045, SPARC: erc32.h in
score/cpu/sparc), but have been lucky to get around real issues (cf.
configuration files below score/cpu/sh/).
- From a configuration focused POV this problem boils down to a
file/subdirectory selection problem:
ppc: 1 or others
sh: 1 out of 2
sparc: 1 out of 1
Automake's means to implement such behavior is using conditionals to be
evaluated at configuration-time. The old configuration scheme however
used make-time conditionals. The SH port was lucky to get around this
issue because it applies a selection from a limited set of possible
selections, the powerpc however applies a selection from an unlimited
set, based on data not being available at configuration time.
- Currently I only see two general solutions:
1) make RTEMS_CPU_MODEL available at configuration time, ie. replace
make-time configuration by configuration-time configuration
2) Perform the selection at build-time, i.e. always install all files,
but use #ifdef #else #endif in source files. This is what the m68k has
exploited at other locations inside of the source-tree.
=> This directory is the last one remaining not using automake below the
whole exec/ hierarchy.
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Property mode set to
100644
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File size:
481 bytes
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Line | |
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1 | ## |
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2 | ## $Id$ |
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3 | ## |
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4 | |
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5 | AUTOMAKE_OPTIONS = foreign 1.4 |
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6 | |
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7 | H_FILES = cpu.h mips64orion.h mipstypes.h |
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8 | noinst_HEADERS = $(H_FILES) |
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9 | |
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10 | # |
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11 | # (OPTIONAL) Add local stuff here using += |
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12 | # |
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13 | |
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14 | PREINSTALL_FILES = \ |
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15 | $(PROJECT_INCLUDE)/rtems/score \ |
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16 | $(H_FILES:%.h=$(PROJECT_INCLUDE)/rtems/score/%.h) |
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17 | |
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18 | $(PROJECT_INCLUDE)/rtems/score: |
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19 | $(mkinstalldirs) $@ |
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20 | |
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21 | $(PROJECT_INCLUDE)/rtems/score/%.h: %.h |
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22 | $(INSTALL_DATA) $< $@ |
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23 | |
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24 | all-local: $(PREINSTALL_FILES) |
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25 | |
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26 | include $(top_srcdir)/../../../../../../automake/local.am |
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