re PR target/55243 (STAMP variable is not defined in t-avr)

PR55243
	* config/avr/t-avr: Don't automatically rebuild
	$(srcdir)/config/avr/t-multilib
	$(srcdir)/config/avr/avr-tables.opt
	$(srcdir)/doc/avr-mmcu.texi
	(avr-mcus): New phony target to build them on request.
	(s-avr-mlib, s-avr-mmcu-texi): Remove.
	* avr/avr-mcus.def: Adjust comments.

From-SVN: r194968
This commit is contained in:
Georg-Johann Lay 2013-01-07 12:45:13 +00:00 committed by Georg-Johann Lay
parent c7afdc98c5
commit 4a176b2331
3 changed files with 67 additions and 37 deletions

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@ -1,3 +1,14 @@
2013-01-07 Georg-Johann Lay <avr@gjlay.de>
PR55243
* config/avr/t-avr: Don't automatically rebuild
$(srcdir)/config/avr/t-multilib
$(srcdir)/config/avr/avr-tables.opt
$(srcdir)/doc/avr-mmcu.texi
(avr-mcus): New phony target to build them on request.
(s-avr-mlib, s-avr-mmcu-texi): Remove.
* avr/avr-mcus.def: Adjust comments.
2013-01-07 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (DEFAULT_PCC_STRUCT_RETURN): Remove.

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@ -18,19 +18,50 @@
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* List of all known AVR MCU types - if updated, it has to be kept
in sync in several places (FIXME: is there a better way?):
- here;
- gas/config/tc-avr.c;
- avr-libc.
/* List of all known AVR MCU types. If updated, cd to $(builddir)/gcc and run
$ make avr-mcus
This will regenerate / update the following source files:
- $(srcdir)/config/avr/t-multilib
- $(srcdir)/config/avr/avr-tables.opt
- $(srcdir)/doc/avr-mmcu.texi
After that, rebuild everything and check-in the new sources to the repo.
The device list below has to be kept in sync with the following places:
- here
- gas/config/tc-avr.c
- avr-libc
Before including this file, define a macro:
AVR_MCU (NAME, ARCH, MACRO, SHORT_SP, ERRATA_SKIP, DATA_SEC, N_FLASH, LIBRARY_NAME)
AVR_MCU (NAME, ARCH, MACRO, SHORT_SP, ERRATA_SKIP, DATA_SEC, N_FLASH,
LIBRARY_NAME)
where the arguments are the fields of struct mcu_type_s. */
where the arguments are the fields of struct mcu_type_s:
NAME Accept -mmcu=<NAME>
/* "avr2" must be first for the "0" default to work as intended. */
ARCH Specifies the multilib variant together with SHORT_SP
MACRO If NULL, this is a core and not a device. If non-NULL,
supply respective built-in macro.
SHORT_SP The device / multilib has an 8-bit stack pointer (no SPH).
ERRATA_SKIP Apply work-around for the "skip 32-bit instruction"
silicon bug: Don't skip 32-bit instrctions.
DATA_SEC First address of SRAM, used in -Tdata= by the driver.
N_FLASH Number of 64 KiB flash segments, rounded up.
LIBRARY_NAME Used by the driver to linke startup code from avr-libc
as of crt<LIBRARY_NAME>.o
"avr2" must be first for the "0" default to work as intended. */
/* Classic, <= 8K. */
AVR_MCU ("avr2", ARCH_AVR2, NULL, 0, 1, 0x0060, 6, "s8515")

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@ -40,48 +40,36 @@ avr.o avr-c.o: $(srcdir)/config/avr/builtins.def
AVR_MCUS = $(srcdir)/config/avr/avr-mcus.def
# Run `avr-mcus' after you changed or added devices in avr-mcus.def
.PHONY: avr-mcus
avr-mcus: $(srcdir)/config/avr/t-multilib \
$(srcdir)/config/avr/avr-tables.opt \
$(srcdir)/doc/avr-mmcu.texi ; @true
# Make sure that -mmcu= is supported for devices from avr-mcus.def and
# is displaed all -mmcu= values are displayed on the help screen
$(srcdir)/config/avr/avr-tables.opt: $(srcdir)/config/avr/genopt.sh $(AVR_MCUS)
$(SHELL) $< $(AVR_MCUS) > $@
# Make sure that -mmcu= support is in sync with -mmcu= documentation.
gen-avr-mmcu-texi$(build_exeext): $(srcdir)/config/avr/gen-avr-mmcu-texi.c \
$(AVR_MCUS) $(srcdir)/config/avr/avr-devices.c \
$(srcdir)/config/avr/avr-arch.h
$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $< -o $@
# Make sure that the -mmcu= documentation is in sync with the compiler.
$(srcdir)/doc/avr-mmcu.texi: s-avr-mmcu-texi; @true
# invoke.texi @includes avr-mmcu.texi. Put this dependency here instead
# of in the global Makefile so that developers of other backends are not
# bothered with AVR stuff.
$(srcdir)/doc/invoke.texi: $(srcdir)/doc/avr-mmcu.texi
# Ensure that device support is in sync with -mmcu= documentation.
s-avr-mmcu-texi: gen-avr-mmcu-texi$(build_exeext)
$(RUN_GEN) ./$< > tmp-avr-mmcu.texi
$(SHELL) $(srcdir)/../move-if-change tmp-avr-mmcu.texi avr-mmcu.texi
@if cmp -s $(srcdir)/doc/avr-mmcu.texi avr-mmcu.texi; then \
$(STAMP) $@; \
else \
echo >&2 ; \
echo "***" >&2 ; \
echo "*** Verify that you have permission to grant a" >&2 ; \
echo "*** GFDL license for all new text in" >&2 ; \
echo "*** avr-mmcu.texi, then copy it to $(srcdir)/doc/avr-mmcu.texi" >&2 ; \
echo "***" >&2 ; \
false; \
fi
$(srcdir)/doc/avr-mmcu.texi: gen-avr-mmcu-texi$(build_exeext)
$(RUN_GEN) ./$< > $@
# Map -mmcu= to the right multilib variant
# MULTILIB_OPTIONS
# MULTILIB_DIRNAMES
# MULTILIB_EXCEPTIONS
# MULTILIB_MATCHES
$(srcdir)/config/avr/t-multilib: s-avr-mlib; @true
s-mlib: $(srcdir)/config/avr/t-multilib
s-avr-mlib: $(srcdir)/config/avr/genmultilib.awk $(AVR_MCUS)
$(AWK) -f $< -v FORMAT=Makefile $< $(AVR_MCUS) > tmp-avr-mlib
$(SHELL) $(srcdir)/../move-if-change \
tmp-avr-mlib $(srcdir)/config/avr/t-multilib
$(STAMP) $@
$(srcdir)/config/avr/t-multilib: $(srcdir)/config/avr/genmultilib.awk \
$(AVR_MCUS)
$(AWK) -f $< -v FORMAT=Makefile $< $(AVR_MCUS) > $@