Date: Mon, 21 Jan 2019 19:02:38 -0800 From: Mark Millard <marklmi@yahoo.com> To: John Baldwin <jhb@freebsd.org> Cc: "freebsd-ppc@freebsd.org" <freebsd-ppc@FreeBSD.org> Subject: Re: GDB TLS testing Message-ID: <AB56B3D1-1762-4115-B7B4-91D4B997F1C4@yahoo.com> In-Reply-To: <19343397-859C-4629-A4A5-B0DCDE25957B@yahoo.com> References: <b0f5b62f-54fb-309f-a578-7b4d9e340a55@FreeBSD.org> <19343397-859C-4629-A4A5-B0DCDE25957B@yahoo.com>
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On 2019-Jan-21, at 18:24, Mark Millard <marklmi at yahoo.com> wrote:
> On 2019-Jan-21, at 12:58, John Baldwin <jh at freebsd.org> wrote:
>=20
>> . . .
>>=20
>> Would someone with a working ppc system be willing to help test the =
GDB bits
>> for me? You can grab the 'fbsd_tls' branch from =
github/bsdjhb/gdb.git to
>> build a GDB. For testing purposes, just generating a core from the =
test
>> programs I'm using and looking at that core on a non-ppc host would =
also
>> work fine. For example, in my case where I have the ppc system =
installed to
>> /qemu/ppc64/rootfs, I would do 'set sysroot /qemu/ppc64/rootfs' at =
the GDB
>> prompt to point GDB at the ppc64 libraries, etc. Note that modern =
GDB is
>> written in C++11, so you can't build it with gcc4.2.
>>=20
>> The first test program I am using is below and should generate a core =
when
>> run. To test the TLS functionality you would want to make sure 'p =
id'
>> reports the proper value (PID from the program's output), and also =
that
>> 'p &id' also reports an address matching the program's output:
>>=20
>> #include <stdio.h>
>> #include <unistd.h>
>>=20
>> static __thread int id;
>>=20
>> int
>> main(int ac, char **av)
>> {
>>=20
>> printf("main: PID %d\n", getpid());
>> id =3D getpid();
>> printf("id =3D %d (%p)\n", id, &id);
>> (void)getchar();
>> #if 1
>> #if defined(__powerpc__)
>> *(char *)NULL =3D 1;
>> #else
>> __builtin_trap();
>> #endif
>> #endif
>> return (0);
>> }
>=20
> Note: This is from my odd devel/pwoerpc64-xtoolchain-gcc based =
buildworld
> based environment with cc being system clang:
>=20
> # uname -apKU
> FreeBSD FBSDG5L 13.0-CURRENT FreeBSD 13.0-CURRENT #5 r341836M: Tue Dec =
11 20:11:21 PST 2018 =
markmi@FBSDFSSD:/usr/obj/powerpc64vtsc_xtoolchain-gcc/powerpc.powerpc64/us=
r/src/powerpc.powerpc64/sys/GENERIC64vtsc-NODBG powerpc powerpc64 =
1300005 1300005
>=20
>=20
> Absent makeinfo the make failed to complete. (I've no clue if there =
are
> more dependencies required.)
>=20
> # ./configure
> checking build system type... powerpc64-unknown-freebsd13.0
> checking host system type... powerpc64-unknown-freebsd13.0
> checking target system type... powerpc64-unknown-freebsd13.0
> checking for a BSD-compatible install... /usr/bin/install -c
> . . .
> checking for makeinfo... no
> /root/c_tests/ppc64_tls_git/missing: makeinfo: not found
> checking for expect... no
> . . .
> # make
> Configuring in ./libiberty
> configure: creating cache ./config.cache
> checking whether to enable maintainer-specific portions of =
Makefiles... no
> checking for makeinfo... /root/c_tests/ppc64_tls_git/missing makeinfo =
--split-size=3D5000000
> configure: WARNING:
> *** Makeinfo is missing. Info documentation will not be built.
> checking for perl... perl
> . . .
> creating bfdver.texi
> restore=3D: && backupdir=3D".am$$" && rm -rf $backupdir && mkdir =
$backupdir && if (/root/c_tests/ppc64_tls_git/missing makeinfo =
--split-size=3D5000000 --split-size=3D5000000 --version) >/dev/null =
2>&1; then for f in bfd.info bfd.info-[0-9] bfd.info-[0-9][0-9] =
bfd.i[0-9] bfd.i[0-9][0-9]; do if test -f $f; then mv $f $backupdir; =
restore=3Dmv; else :; fi; done; else :; fi && if =
/root/c_tests/ppc64_tls_git/missing makeinfo --split-size=3D5000000 =
--split-size=3D5000000 -I . -o bfd.info `test -f 'bfd.texi' || echo =
'./'`bfd.texi; then rc=3D0; else rc=3D$?; $restore $backupdir/* =
`echo "./bfd.info" | sed 's|[^/]*$||'`; fi; rm -rf $backupdir; exit =
$rc
> /root/c_tests/ppc64_tls_git/missing: makeinfo: not found
> WARNING: 'makeinfo' is missing on your system.
> You should only need it if you modified a '.texi' file, or
> any other file indirectly affecting the aspect of the manual.
> You might want to install the Texinfo package:
> <http://www.gnu.org/software/texinfo/>;
> The spurious makeinfo call might also be the consequence of
> using a buggy 'make' (AIX, DU, IRIX), in which case you might
> want to install GNU make:
> <http://www.gnu.org/software/make/>;
> *** Error code 127
>=20
> Stop.
> make[3]: stopped in /root/c_tests/ppc64_tls_git/bfd/doc
> *** Error code 1
>=20
> Stop.
> make[2]: stopped in /root/c_tests/ppc64_tls_git/bfd
> *** Error code 1
>=20
> Stop.
> make[1]: stopped in /root/c_tests/ppc64_tls_git
> *** Error code 1
>=20
> Stop.
> make: stopped in /root/c_tests/ppc64_tls_git
After installing print/texinfo to get makeinfo , the
next problem for me is libintl.h not being found
despite its existence in /usr/local/include/ :
# make
. . .
libtool: compile: cc -DHAVE_CONFIG_H -I. -DBINDIR=3D\"/usr/local/bin\" =
-I. -I. -I./../include -DHAVE_powerpc_elf64_fbsd_vec =
-DHAVE_powerpc_elf64_vec -DHAVE_powerpc_elf32_vec =
-DHAVE_powerpc_elf32_fbsd_vec -DHAVE_powerpc_elf32_le_vec =
-DHAVE_rs6000_xcoff_vec -DHAVE_rs6000_xcoff64_vec =
-DHAVE_rs6000_xcoff64_aix_vec -DHAVE_elf64_le_vec -DHAVE_elf64_be_vec =
-DHAVE_elf32_le_vec -DHAVE_elf32_be_vec -DHAVE_plugin_vec -W -Wall =
-Wstrict-prototypes -Wmissing-prototypes -Wshadow -Werror -I./../zlib -g =
-O2 -MT archive.lo -MD -MP -MF .deps/archive.Tpo -c archive.c -o =
archive.o
In file included from archive.c:134:
./sysdep.h:185:11: fatal error: 'libintl.h' file not found
# include <libintl.h>
^~~~~~~~~~~
1 error generated.
*** Error code 1
Stop.
make[4]: stopped in /root/c_tests/ppc64_tls_git/bfd
*** Error code 1
Stop.
make[3]: stopped in /root/c_tests/ppc64_tls_git/bfd
*** Error code 1
Stop.
make[2]: stopped in /root/c_tests/ppc64_tls_git/bfd
*** Error code 1
Stop.
make[1]: stopped in /root/c_tests/ppc64_tls_git
*** Error code 1
Stop.
make: stopped in /root/c_tests/ppc64_tls_git
# find /usr/local/include/ -name libintl.h -print
/usr/local/include/libintl.h
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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