Re: cross-compiling for ppc64 with seq 2.1 and 2.2

[Benjamin Franksen <benjamin.franksen@helmholtz-berlin.de>]

On 02/01/2018 09:58 PM, Jeong Han Lee wrote:
>   I am trying to build the seq 2.1.21 and 2.2.6 for linux-ppc64 target
> by cross-compiling. And I've got the following error:
> 
> 
> ```
> /opt/fsl-qoriq/current/sysroots/x86_64-fslsdk-linux/usr/bin/powerpc64-fsl-linux/powerpc64-fsl-linux-gcc
>  -D_GNU_SOURCE -D_DEFAULT_SOURCE         -DUSE_TYPED_RSET   -D_ppc_64_
> -DUNIX  -Dlinux     -O3   -Wall       -m64
> --sysroot=/opt/fsl-qoriq/current/sysroots/ppc64e6500-fsl-linux
> -mhard-float -mcpu=e6500 -pipe -feliminate-unused-debug-types     -fPIC
> -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc
> -I../../../include/os/Linux -I../../../include
> -I/home/jhlee/epics_env/epics-base/include/compiler/gcc
> -I/home/jhlee/epics_env/epics-base/include/os/
> -I/home/jhlee/epics_env/epics-base/include        -MM -MF pv.d  ../pv.c
> 
> 
> In file included from
> /home/jhlee/epics_env/epics-base/include/cadef.h:40:0,
>                  from ../pv.c:5:
> /home/jhlee/epics_env/epics-base/include/epicsThread.h:214:23: fatal
> error: osdThread.h: No such file or directory
>  #include "osdThread.h"
> ```
> 
> Got the hint from EPICS_BASE/CONFIG, I changed seq/configure/CONFIG as
> follows:
> 
> $ git diff configure/CONFIG
> diff --git a/configure/CONFIG b/configure/CONFIG
> index 3861c7e..cd9f838 100644
> --- a/configure/CONFIG
> +++ b/configure/CONFIG
> @@ -22,7 +22,9 @@ include $(TOP)/configure/CONFIG_SITE
>  ifdef T_A
>    -include $(TOP)/configure/CONFIG_SITE.Common.$(T_A)
>    -include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
> -  -include $(TOP)/configure/O.$(T_A)/CONFIG_APP_INCLUDE
> +  ifneq ($(CONFIG),$(TOP)/configure)
> +    -include $(CONFIG)/CONFIG_APP_INCLUDE
> +  endif
>  endif
> 
> The cross compilation works again.

As far as the sequencer is concerned, this change should not be
necessary. I think (and your other findings seem to support that) there
is a problem with the configuration of this target architecture in base.
I guess there is a file missing somewhere but I have no clue what it
could be.

Sorry, I can't be more helpful.

Cheers
Ben

> ```
> /opt/fsl-qoriq/current/sysroots/x86_64-fslsdk-linux/usr/bin/powerpc64-fsl-linux/powerpc64-fsl-linux-gcc
>  -D_GNU_SOURCE -D_DEFAULT_SOURCE         -DUSE_TYPED_RSET   -D_ppc_64_
> -DUNIX  -Dlinux     -O3   -Wall       -m64
> --sysroot=/opt/fsl-qoriq/current/sysroots/ppc64e6500-fsl-linux
> -mhard-float -mcpu=e6500 -pipe -feliminate-unused-debug-types     -fPIC
> -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc
> -I../../../include/os/Linux -I../../../include
> -I/home/jhlee/epics_env/epics-base/include/compiler/gcc
> -I/home/jhlee/epics_env/epics-base/include/os/
> -I/home/jhlee/epics_env/epics-base/include
> -I/home/jhlee/epics_env/epics-base/include/compiler/gcc
> -I/home/jhlee/epics_env/epics-base/include/os/Linux
> -I/home/jhlee/epics_env/epics-base/include        -MM -MF pv.d  ../pv.c
> ```
> 
> It looks like somehow OS_CLASS is missing. Can I get some more insights
> about them?
> 
> 
> The weird CONFIG_SITE.Common.linux-ppc64e6500 is as follows:
> 
> ```
> include $(CONFIG)/os/CONFIG.Common.linux-ppc64
> 
> TOOLCHAIN_VER=current
> TOOLCHAIN=fsl
> TOOLCHAIN_SUFFIX=-qoriq
> 
> GNU_TARGET=powerpc64-$(TOOLCHAIN)-linux
> SYSROOTS=/opt/$(TOOLCHAIN)$(TOOLCHAIN_SUFFIX)/$(TOOLCHAIN_VER)/sysroots
> SDKTARGETSYSROOT=$(SYSROOTS)/ppc64e6500-$(TOOLCHAIN)-linux
> 
> CROSS_INCLUDES =
> 
> FSL_CFLAG = --sysroot=$(SDKTARGETSYSROOT) -mhard-float -mcpu=e6500
> 
> #ARCH_DEP_CPPFLAGS += $(FSL_CFLAG)
> 
> ARCH_DEP_CFLAGS   += $(FSL_CFLAG)
> ARCH_DEP_CXXFLAGS += $(FSL_CFLAG)
> ARCH_DEP_LDFLAGS  += --sysroot=$(SDKTARGETSYSROOT)
> 
> 
> ARCH_DEP_CFLAGS   += -pipe -feliminate-unused-debug-types
> ARCH_DEP_CXXFLAGS += -pipe -feliminate-unused-debug-types
> ARCH_DEP_LDFLAGS  += -Wl,-O1
> ARCH_DEP_LDFLAGS  += -Wl,--hash-style=gnu
> ARCH_DEP_LDFLAGS  += -Wl,--as-needed
> 
> OECORE_NATIVE=x86_64-$(TOOLCHAIN)sdk-linux
> GNU_DIR=$(SYSROOTS)/$(OECORE_NATIVE)/usr
> GNU_BIN=$(GNU_DIR)/bin/$(GNU_TARGET)
> GNU_TARGET_LIB_DIR=$(GNU_DIR)/lib
> ```-- 
"Make it so they have to reboot after every typo." ― Scott Adams

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