| Summary: | A few potentially ominous, and several likely harmless warnings during 4.0 build | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Paul Schlie <schlie> |
| Component: | target | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED WONTFIX | ||
| Severity: | normal | CC: | eric.weddington, gcc-bugs, gjl |
| Priority: | P5 | ||
| Version: | 4.0.0 | ||
| Target Milestone: | --- | ||
| Host: | powerpc-apple-darwin7.6.0 | Target: | avr-unknown-none |
| Build: | powerpc-apple-darwin7.6.0 | Known to work: | |
| Known to fail: | Last reconfirmed: | 2004-12-14 16:51:18 | |
This one cannot be fixed: gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fno-common -Wno-error -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc/gcc -I../../gcc/gcc/build -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include \ -o build/gengtype-yacc.o gengtype-yacc.c /usr/share/bison.simple: In function `yyparse': /usr/share/bison.simple:614: warning: comparison between signed and unsigned /usr/share/bison.simple:626: warning: comparison between signed and unsigned The following is a target one: gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include ../../gcc/gcc/varasm.c -o varasm.o ../../gcc/gcc/varasm.c: In function `assemble_variable': ../../gcc/gcc/varasm.c:1699: warning: empty body in an if-statement ../../gcc/gcc/varasm.c: In function `const_rtx_hash_1': ../../gcc/gcc/varasm.c:2843: warning: right shift count >= width of type The long double bugs cannot be fixed, they are warnings only from the Apple's gcc. The warnings from gengtype cannot be fixed. Subject: Bug 18989 Author: aesok Date: Wed Apr 25 07:18:33 2007 New Revision: 124141 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124141 Log: PR target/18989 * config/avr/avr.h (ASM_OUTPUT_ALIGN): Redefine. Modified: trunk/gcc/ChangeLog trunk/gcc/config/avr/avr.h Subject: Bug 18989 Author: aesok Date: Wed Apr 25 19:38:32 2007 New Revision: 124159 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124159 Log: PR target/18989 * config/avr/avr.h (ASM_OUTPUT_ALIGN): Redefine. Modified: branches/gcc-4_2-branch/gcc/ChangeLog branches/gcc-4_2-branch/gcc/config/avr/avr.h Subject: Bug 18989 Author: aesok Date: Wed Apr 25 19:52:21 2007 New Revision: 124162 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124162 Log: PR target/18989 * config/avr/avr.h (ASM_OUTPUT_ALIGN): Redefine. Modified: branches/gcc-4_1-branch/gcc/ChangeLog branches/gcc-4_1-branch/gcc/config/avr/avr.h The committed patch fixes this warning: ../../gcc/gcc/varasm.c: In function `assemble_variable': ../../gcc/gcc/varasm.c:1699: warning: empty body in an if-statement However, the following warning still exists: ../../gcc-4.1.2/gcc/varasm.c: In function `const_rtx_hash_1': ../../gcc-4.1.2/gcc/varasm.c:3029: warning: right shift count >= width of type This is PR-rot, obviously |
Warnings generated during a failed avr target build of 4.0 as of today, on a mac/dwawin-7.6 host which should likely be verified as being harmless, and then silenced if so. (sending the report just in case the build failure may be related to one of the more ominous warnings, and for reference: built via ../gcc/configure --target=avr --disable-nls --enable-languages=c ) [ other more target specific warnings/errors noted via PR:18988, and noted at the end ] --- don't know where the below should have been defined, but seems fragile?: gcc -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing- prototypes -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -o build/gengtype \ build/gengtype.o build/gengtype-lex.o build/gengtype-yacc.o \ build/errors.o ../build-powerpc-apple-darwin7.6.0/libiberty/libiberty.a build/gengtype warning: structure `c_arg_info' used but not defined warning: structure `c_switch' used but not defined warning: structure `reorder_block_def' used but not defined warning: structure `et_node' used but not defined warning: structure `loop' used but not defined warning: structure `reg_info_def' used but not defined warning: structure `value_set' used but not defined warning: structure `alias_var_def' used but not defined warning: structure `c_arg_info' used but not defined warning: structure `c_switch' used but not defined warning: structure `reorder_block_def' used but not defined warning: structure `et_node' used but not defined warning: structure `loop' used but not defined warning: structure `reg_info_def' used but not defined warning: structure `value_set' used but not defined warning: structure `alias_var_def' used but not defined echo timestamp > s-gtype --- the last two warnings below imply something's fragile?: gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/macro.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/macro.c:27: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype ../../gcc/libcpp/macro.c: In function `padding_token': ../../gcc/libcpp/macro.c:913: warning: assignment discards qualifiers from pointer target type ../../gcc/libcpp/macro.c: In function `create_iso_definition': ../../gcc/libcpp/macro.c:1422: warning: assignment from incompatible pointer type --- likely not a big deal, but would be nicer if verified/silenced: gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fno-common -Wno-error -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc/gcc -I../../gcc/gcc/build -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include \ -o build/gengtype-yacc.o gengtype-yacc.c /usr/share/bison.simple: In function `yyparse': /usr/share/bison.simple:614: warning: comparison between signed and unsigned /usr/share/bison.simple:626: warning: comparison between signed and unsigned --- not a big deal, but would be nicer if prototypes were added to silence: gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/charset.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/charset.c:22: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/directives.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/directives.c:23: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/errors.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/errors.c:27: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/expr.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/expr.c:22: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/files.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/files.c:25: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/identifiers.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/identifiers.c:27: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype echo "#define LOCALEDIR \"/usr/local/share/locale\"" > localedir.new ../../gcc/libcpp/../move-if-change localedir.new localedir.h echo timestamp > localedir.hs gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/init.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/init.c:23: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/lex.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/lex.c:23: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/line-map.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/line-map.c:24: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/mkdeps.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/mkdeps.c:24: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/pch.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/pch.c:19: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype ../../gcc/libcpp/pch.c: In function `cpp_read_state': ../../gcc/libcpp/pch.c:656: warning: pointer targets in passing arg 1 of `strcspn' differ in signedness gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/symtab.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/symtab.c:23: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/traditional.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/traditional.c:20: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype rm -f libcpp.a ar cru libcpp.a charset.o directives.o errors.o expr.o files.o identifiers.o init.o lex.o line-map.o macro.o mkdeps.o pch.o symtab.o traditional.o ranlib libcpp.a gcc -I../../gcc/libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -I../../gcc/ libcpp -I. -I../../gcc/libcpp/../include -I../../gcc/libcpp/include -c ../../gcc/libcpp/makedepend.c In file included from ../../gcc/libcpp/system.h:269, from ../../gcc/libcpp/makedepend.c:24: ../../gcc/include/libiberty.h:80: warning: function declaration isn't a prototype In file included from ../../gcc/libcpp/makedepend.c:27: ../../gcc/include/getopt.h:116: warning: function declaration isn't a prototype --- In addition to general hopefully benign warrnings reported via another PR, these seem more target specific than not, and may have contributed to the failure?: --- would seem that the code in varasm.c may be broken/fragile?: gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include ../../gcc/gcc/varasm.c -o varasm.o ../../gcc/gcc/varasm.c: In function `assemble_variable': ../../gcc/gcc/varasm.c:1699: warning: empty body in an if-statement ../../gcc/gcc/varasm.c: In function `const_rtx_hash_1': ../../gcc/gcc/varasm.c:2843: warning: right shift count >= width of type --- wouldn't expect a long double type to be referanced if not required by the target? gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include ../../gcc/gcc/alloc-pool.c -o alloc-pool.o ../../gcc/gcc/alloc-pool.c:48: warning: use of `long double' type; its size may change in a future release ../../gcc/gcc/alloc-pool.c:48: warning: (Long double usage is reported only once for each file. ../../gcc/gcc/alloc-pool.c:48: warning: To disable this warning, use -Wno-long-double.) gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include ../../gcc/gcc/ggc-page.c -o ggc-page.o ../../gcc/gcc/ggc-page.c:208: warning: use of `long double' type; its size may change in a future release ../../gcc/gcc/ggc-page.c:208: warning: (Long double usage is reported only once for each file. ../../gcc/gcc/ggc-page.c:208: warning: To disable this warning, use -Wno-long-double.)