[oe] [PATCH] libunwind: force gcc to be built first

[Frans Meulenbroeks]

2010/9/29 Thilo Fromm <t.fromm at dresearch.de>:
> libunwind causes cross gcc build to fail if libunwind is built first:
>
> ...
> | arm-angstrom-linux-gnueabi-gcc -march=armv5te -mtune=arm926ej-s -mthumb-interwork -mno-thumb -march=armv5te -mtune=arm926ej-s -mthumb-interwork -mno-thumb -isystem/SCRATCH/maniac/oe-merge-test/OE/tmp.6/sysroots/armv5te-angstrom-linux-gnueabi/usr/include -g -Os -O2 -g -Os -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I. -I../.././gcc -I/SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc -I/SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/. -I/SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc -I/SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../include  -DHAVE_CC_TLS -o _ucmpdi2_s.o -MT _ucmpdi2_s.o
>  \
>  -MD -MP -MF _ucmpdi2_s.dep -DSHARED -DL_ucmpdi2 -c /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/libgcc2.c
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/config/arm/unwind-arm.c:40: error: expected ')' before '*' token
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/config/arm/unwind-arm.c:41: error: expected ')' before '*' token
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/config/arm/unwind-arm.c:42: error: expected ')' before '*' token
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/config/arm/unwind-arm.c:47: warning: data definition has no type or storage class
> ...
>
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/config/arm/pr-support.c:396: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_Unwind_GetDataRelBase'
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/config/arm/pr-support.c:402: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_Unwind_GetTextRelBase'
> | make[2]: *** [unwind-arm.o] Error 1
> | make[2]: *** Waiting for unfinished jobs....
> | make[2]: *** [pr-support.o] Error 1
> ...
>
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/unwind-c.c:212: error: 'lsda_header_info' has no member named 'LPStart'
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/unwind-c.c:214: error: 'lsda_header_info' has no member named 'action_table'
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/unwind-c.c:234: error: expected ')' before 'ue_header'
> | /SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/libgcc/../gcc/unwind-c.c:123: warning: unused parameter 'ue_header'
> | make[2]: *** [unwind-c.o] Error 1
> | make[2]: Leaving directory `/SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/build.arm-angstrom-linux-gnueabi.arm-angstrom-linux-gnueabi/arm-angstrom-linux-gnueabi/libgcc'
> | make[1]: *** [all-target-libgcc] Error 2
> | make[1]: Leaving directory `/SCRATCH/maniac/oe-merge-test/OE/tmp.6/work/armv5te-angstrom-linux-gnueabi/gcc-4.3.3-r17.1/gcc-4.3.3/build.arm-angstrom-linux-gnueabi.arm-angstrom-linux-gnueabi'
> | make: *** [all] Error 2
> | FATAL: oe_runmake failed
> | ERROR: Function do_compile failed
> NOTE: package gcc-4.3.3-r17.1: task do_compile: Failed
>
> It looks like libunwind provides header files that are named
> identically to gcc header files. gcc then confuses these headers when it
> is built, causing a break of the build.
>
> This patch makes libunwind depend on gcc which resolves the build issue. Both
> build nicely when gcc is built first.

Hm. Ideally this should be patched in gcc. Now I feel that if someone
does a bitbake libunwind; bitbake -cclean gcc; bitbake gcc things
still fail.
Btw what include files are we talking about?

Frans.
>
> Signed-off-by: Thilo Fromm <t.fromm at dresearch.de>
> ---
>  recipes/libunwind/libunwind.inc |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/recipes/libunwind/libunwind.inc b/recipes/libunwind/libunwind.inc
> index 6994095..4340192 100644
> --- a/recipes/libunwind/libunwind.inc
> +++ b/recipes/libunwind/libunwind.inc
> @@ -1,7 +1,8 @@
>  DESCRIPTION = "a portable and efficient C programming interface (API) to determine the call-chain of a program"
>  HOMEPAGE = "http://www.nongnu.org/libunwind"
>  LICENSE = "MIT"
> -INC_PR = "r1"
> +INC_PR = "r2"
> +DEPENDS = "gcc"
>
>  SRC_URI = "http://download.savannah.nongnu.org/releases/${BPN}/${BPN}-${PV}.tar.gz;name=archive"
>
> --
> 1.7.0.4
>
>
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