error when building env

U-Boot Luka Perkov 4 participants 7 messages May 16, 2014 – Jun 12, 2014

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Luka Perkov

author

2014-05-16 17:26 UTC #0 lore raw

Hi,

when trying to build env with "-mfloat-abi=hard" I'm hitting this error:

/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/fw_env.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env_main.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/fw_env_main.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/crc32.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/crc32.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/ctype.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/ctype.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/linux_string.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/linux_string.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/env_attr.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/env_attr.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/env_flags.o does not /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: failed to merge target specific data of file tools/env/env_flags.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/aes.o does not

When env is built with "-mfloat-abi=soft" everything is fine. Has this been triggered by anyone else?

Thanks!

Luka

Tom Rini

2014-05-16 17:58 UTC #1 lore raw

Quoted 6 lines · Luka Perkov

Hi,
when trying to build env with "-mfloat-abi=hard" I'm hitting this error:
/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not

Odd. I can build 'tools-only' with my hard float toolchain fine. Can you build with V=1 and see what files are perhaps not getting passed in a -mfloat option?

Signature · 8 lines

Tom
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Luka Perkov

author

2014-05-19 12:14 UTC #2 lore raw

Hi Tom,

Quoted 9 lines · Tom Rini

Quoted 4 lines · Luka Perkov
when trying to build env with "-mfloat-abi=hard" I'm hitting this error:
/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not
Odd. I can build 'tools-only' with my hard float toolchain fine. Can you build with V=1 and see what files are perhaps not getting passed in a -mfloat option?

The patch below fixes the problem I was having. Is that good enough for proper patch submission?

With it I am able to use replace default HOSTCFLAGS with what was defined in TARGET_CFLAGS.

Luka

tools/env/Makefile +4 -0

index f5368bc..4de1d51 100644
@@ -10,6 +10,10 @@
 # with "CC" here for the maximum code reuse of scripts/Makefile.host.
 HOSTCC = $(CC)
 
+ifneq ($(TARGET_CFLAGS),)
+HOSTCFLAGS = $(TARGET_CFLAGS)
+endif
+
 # Compile for a hosted environment on the target
 HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(srctree)/tools/env \

Tom Rini

2014-06-05 18:25 UTC #3 lore raw

Quoted 26 lines · Luka Perkov

Hi Tom,
Quoted 9 lines · Tom Rini
Quoted 4 lines · Luka Perkov
when trying to build env with "-mfloat-abi=hard" I'm hitting this error:
/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not
Odd. I can build 'tools-only' with my hard float toolchain fine. Can you build with V=1 and see what files are perhaps not getting passed in a -mfloat option?
The patch below fixes the problem I was having. Is that good enough for proper patch submission?
With it I am able to use replace default HOSTCFLAGS with what was defined in TARGET_CFLAGS.
Luka
tools/env/Makefile +0 -0
index f5368bc..4de1d51 100644

tools/env/Makefile line 19

Quoted 10 lines

tools/env/Makefile +4 -0

@@ -10,6 +10,10 @@
 # with "CC" here for the maximum code reuse of scripts/Makefile.host.
 HOSTCC = $(CC)
 
+ifneq ($(TARGET_CFLAGS),)
+HOSTCFLAGS = $(TARGET_CFLAGS)
+endif
+
 # Compile for a hosted environment on the target
 HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(srctree)/tools/env \

This still seems odd. Masahiro?

Signature · 8 lines

Tom
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Jeroen Hofstee

2014-06-05 18:42 UTC #4 lore raw

Hi,

Quoted 30 lines · Tom Rini

Quoted 29 lines · Luka Perkov
Hi Tom,
Quoted 9 lines · Tom Rini
Quoted 4 lines · Luka Perkov
when trying to build env with "-mfloat-abi=hard" I'm hitting this error:
/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not
Odd. I can build 'tools-only' with my hard float toolchain fine. Can you build with V=1 and see what files are perhaps not getting passed in a -mfloat option?
The patch below fixes the problem I was having. Is that good enough for proper patch submission?
With it I am able to use replace default HOSTCFLAGS with what was defined in TARGET_CFLAGS.
Luka
tools/env/Makefile +0 -0
index f5368bc..4de1d51 100644
@@ -10,6 +10,10 @@
 # with "CC" here for the maximum code reuse of scripts/Makefile.host.
 HOSTCC = $(CC)
 

Quoted 9 lines

tools/env/Makefile line 19

Quoted 7 lines

tools/env/Makefile +4 -0

+ifneq ($(TARGET_CFLAGS),)
+HOSTCFLAGS = $(TARGET_CFLAGS)
+endif
+
 # Compile for a hosted environment on the target
 HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(srctree)/tools/env \

This still seems odd. Masahiro?

Yes is seems odd indeed, shouldn't it be unconditionally be part of the CROSS_BUILD_TOOLS check below? Since it switches compiler, but not related flags..

Regards,
Jeroen

Masahiro Yamada

2014-06-09 13:39 UTC #5 lore raw

In reply to Tom Rini

Hi Luka, Tom,

Quoted 30 lines · On Thu, 5 Jun 2014 14:25:47 -0400 Tom Rini <[email protected]> wrote:

Quoted 29 lines · Luka Perkov
Hi Tom,
Quoted 9 lines · Tom Rini
Quoted 4 lines · Luka Perkov
when trying to build env with "-mfloat-abi=hard" I'm hitting this error:
/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not
Odd. I can build 'tools-only' with my hard float toolchain fine. Can you build with V=1 and see what files are perhaps not getting passed in a -mfloat option?
The patch below fixes the problem I was having. Is that good enough for proper patch submission?
With it I am able to use replace default HOSTCFLAGS with what was defined in TARGET_CFLAGS.
Luka
tools/env/Makefile +0 -0
index f5368bc..4de1d51 100644
@@ -10,6 +10,10 @@
 # with "CC" here for the maximum code reuse of scripts/Makefile.host.
 HOSTCC = $(CC)
 

Quoted 10 lines

tools/env/Makefile line 19

Quoted 7 lines

tools/env/Makefile +4 -0

+ifneq ($(TARGET_CFLAGS),)
+HOSTCFLAGS = $(TARGET_CFLAGS)
+endif
+
 # Compile for a hosted environment on the target
 HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(srctree)/tools/env \

This still seems odd. Masahiro?

Looks odd to me.

According to Luka's build log,
he is trying to compile the C sources with hard float, but link them against soft float library.

In my understanding, consistency should be kept between compile and link stage by the compiler as is .
We don't have to tweak HOSTCFLAGS from the outside.

Best Regards
Masahiro Yamada

Luka Perkov

author

2014-06-12 09:50 UTC #6 lore raw

Hi Masahiro,

Quoted 41 lines · Masahiro Yamada

Quoted 28 lines · On Thu, 5 Jun 2014 14:25:47 -0400 Tom Rini <[email protected]> wrote:
Quoted 27 lines · Luka Perkov
Quoted 9 lines · Tom Rini
Quoted 4 lines · Luka Perkov
when trying to build env with "-mfloat-abi=hard" I'm hitting this error:
/opt/openwrt/trunk/staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/arm-openwrt-linux-uclibcgnueabi-gcc -o tools/env/fw_printenv_unstripped tools/env/fw_env.o tools/env/fw_env_main.o tools/env/crc32.o tools/env/ctype.o tools/env/linux_string.o tools/env/env_attr.o tools/env/env_flags.o tools/env/aes.o /opt/build/owrt_staging_dir/toolchain-arm_cortex-a9+neon_gcc-4.8-linaro_uClibc-0.9.33.2_eabi/bin/../lib/gcc/arm-openwrt-linux-uclibcgnueabi/4.8.3/../../../../arm-openwrt-linux-uclibcgnueabi/bin/ld: error: tools/env/fw_printenv_unstripped uses VFP register arguments, tools/env/fw_env.o does not
Odd. I can build 'tools-only' with my hard float toolchain fine. Can you build with V=1 and see what files are perhaps not getting passed in a -mfloat option?
The patch below fixes the problem I was having. Is that good enough for proper patch submission?
With it I am able to use replace default HOSTCFLAGS with what was defined in TARGET_CFLAGS.
Luka
tools/env/Makefile +0 -0
index f5368bc..4de1d51 100644
@@ -10,6 +10,10 @@
 # with "CC" here for the maximum code reuse of scripts/Makefile.host.
 HOSTCC = $(CC)
 
Quoted 9 lines
tools/env/Makefile line 19
Quoted 7 lines
tools/env/Makefile +4 -0
+ifneq ($(TARGET_CFLAGS),)
+HOSTCFLAGS = $(TARGET_CFLAGS)
+endif
+
 # Compile for a hosted environment on the target
 HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(srctree)/tools/env \
This still seems odd. Masahiro?
Looks odd to me.

Quoted 7 lines

According to Luka's build log,
he is trying to compile the C sources with hard float, but link them against soft float library.
In my understanding, consistency should be kept between compile and link stage by the compiler as is .
We don't have to tweak HOSTCFLAGS from the outside.

Back when I was debugging this I've seen that in main Makefile this line is defined:

HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

I needed to replace it to whatever I have defined in TARGET_CFLAGS, thus I've proposed the patch above.

It's not a problem to keep this workaround externally, I thought others were hitting this problem as well.

Luka