Re: [ptxdist] Append Make Options to Compile Stage of Rule File

["Chin You Wen (WMSC-HW)" <youwen@willowglen.asia>]

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Hi Jürgen,

You were right about the specifying the CFLAGS variable in your first
reply. It didn't work at first because I commented a line like below, and
subsequent lines are not being parsed properly.

LIBSEPOL_MAKE_OPT := \
# -Wno-error=shadow
                "CFLAGS=-Wno-error=shadow"

Also I will fix these non-trivial warnings. Thanks for your help!

Regards,
You Wen


On Mon, Feb 18, 2019 at 6:50 PM Juergen Borleis <jbe@pengutronix.de> wrote:

> Hi You Wen,
>
> On Monday 18 February 2019 11:29:31 Chin You Wen (WMSC-HW) wrote:
> > I tried that and also with some variations such as "CFLAGS+=-Wno-error"
> > but nothing changes in the compiler output. I am compiling for
> > Phycore-AM335x SOM, if that matters.
>
> Okay, without:
>
> ------------------------
> target: libsepol.compile
> ------------------------
>
> make[1]: Entering directory '[...]/platform-v7a/build-target/libsepol_2.8'
> make -C src
> make[2]: Entering directory
> '[...]/platform-v7a/build-target/libsepol_2.8/src'
> arm-v7a-linux-gnueabihf-gcc -Werror -Wall -W -Wundef -Wshadow
> -Wmissing-format-attribute -O2 -I. -I../include -D_GNU_SOURCE
> -I../cil/include -fPIC -c -o assertion.o assertion.c
> arm-v7a-linux-gnueabihf-gcc -Werror -Wall -W -Wundef -Wshadow
> -Wmissing-format-attribute -O2 -I. -I../include -D_GNU_SOURCE
> -I../cil/include -fPIC -c -o avrule_block.o avrule_block.c
> [...]
> arm-v7a-linux-gnueabihf-gcc -Werror -Wall -W -Wundef -Wshadow
> -Wmissing-format-attribute -O2 -I. -I../include -D_GNU_SOURCE
> -I../cil/include -fPIC -c -o mls.o mls.c
> In file included from ibpkeys.c:4:0:
> ibpkeys.c: In function 'sepol_ibpkey_query':
> ibpkeys.c:179:14: error: format '%lx' expects argument of type 'long
> unsigned int', but argument 4 has type 'uint64_t {aka long long unsigned
> int}' [-Werror=format=]
> debug.h:36:330: note: in definition of macro 'msg_write'
> ibpkeys.c:179:2: note: in expansion of macro 'ERR'
> ibpkeys.c: In function 'sepol_ibpkey_modify':
> ibpkeys.c:206:14: error: format '%lx' expects argument of type 'long
> unsigned int', but argument 4 has type 'uint64_t {aka long long unsigned
> int}' [-Werror=format=]
> debug.h:36:330: note: in definition of macro 'msg_write'
> ibpkeys.c:206:2: note: in expansion of macro 'ERR'
> cc1: all warnings being treated as errors
> ICECC[25965] 2019-02-18 11:38:50: Compiled on 10.1.0.69
> Makefile:76: recipe for target 'ibpkeys.o' failed
>
> And with
>
> LIBSEPOL_MAKE_OPT := \
>                 "CFLAGS=-Wno-error=shadow"
>
> in the libsepol.make rule file:
>
> ------------------------
> target: libsepol.compile
> ------------------------
>
> make[1]: Entering directory '[...]/platform-v7a/build-target/libsepol_2.8'
> make -C src
> make[2]: Entering directory
> '[...]/platform-v7a/build-target/libsepol_2.8/src'
> arm-v7a-linux-gnueabihf-gcc -Wno-error=shadow -I. -I../include
> -D_GNU_SOURCE -I../cil/include -fPIC -c -o assertion.o assertion.c
> arm-v7a-linux-gnueabihf-gcc -Wno-error=shadow -I. -I../include
> -D_GNU_SOURCE -I../cil/include -fPIC -c -o avrule_block.o avrule_block.c
> arm-v7a-linux-gnueabihf-gcc -Wno-error=shadow -I. -I../include
> -D_GNU_SOURCE -I../cil/include -fPIC -c -o avtab.o avtab.c
> arm-v7a-linux-gnueabihf-gcc -Wno-error=shadow -I. -I../include
> -D_GNU_SOURCE -I../cil/include -fPIC -c -o boolean_record.o boolean_record.c
> [...]
> arm-v7a-linux-gnueabihf-ar rcs libsepol.a assertion.o avrule_block.o
> avtab.o boolean_record.o booleans.o conditional.o constraint.o context.o
> context_record.o debug.o ebitmap.o expand.o genbools.o genusers.o handle.o
> hashtab.o hierarchy.o ibendport_record.o ibendports.o ibpkey_record.o
> ibpkeys.o iface_record.o
> interfaces.o kernel_to_cil.o kernel_to_common.o kernel_to_conf.o link.o
> mls.o module.o module_to_cil.o node_record.o nodes.o polcaps.o policydb.o
> policydb_convert.o policydb_public.o port_record.o ports.o roles.o
> services.o sidtab.o symtab.o user_record.o users.o util.o
> write.o ../cil/src/cil.o ../cil/src/cil_binary.o
> ../cil/src/cil_build_ast.o ../cil/src/cil_copy_ast.o ../cil/src/cil_find.o
> ../cil/src/cil_fqn.o ../cil/src/cil_lexer.o ../cil/src/cil_list.o
> ../cil/src/cil_log.o ../cil/src/cil_mem.o ../cil/src/cil_parser.o
> ../cil/src/cil_policy.o ../cil/src/cil_post.o ../cil/src/cil_reset_ast.o
> ../cil/src/cil_resolve_ast.o ../cil/src/cil_stack.o
> ../cil/src/cil_strpool.o ../cil/src/cil_symtab.o ../cil/src/cil_tree.o
> ../cil/src/cil_verify.o
> arm-v7a-linux-gnueabihf-ranlib libsepol.a
> ln -sf libsepol.so.1 libsepol.so
> make[2]: Leaving directory
> '[...]/platform-v7a/build-target/libsepol_2.8/src'
> make -C utils
> make[2]: Entering directory
> '[...]/platform-v7a/build-target/libsepol_2.8/utils'
> arm-v7a-linux-gnueabihf-gcc -Wno-error=shadow -I../include  -L../src
> chkcon.c  -lsepol -o chkcon
> make[2]: Leaving directory
> '[...]/platform-v7a/build-target/libsepol_2.8/utils'
> make[1]: Leaving directory '[...]/platform-v7a/build-target/libsepol_2.8'
> finished target libsepol.compile
>
> It works as expected (and removes all options from the Makefile, which
> isn't
> a good idea). Maybe this would be better:
>
> LIBSEPOL_MAKE_OPT := \
>                 CFLAGS="-Wall -Wextra -W -Wundef -Wshadow
> -Wmissing-format-attribute -O2"
>
> Regards,
> Jürgen
>
> BTW: You should fix the warnings. They are serious.
>
> --
> Pengutronix e.K.                             | Juergen Borleis
> |
> Industrial Linux Solutions                   | http://www.pengutronix.de/
>  |
>


-- 
Regards,
You Wen

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