From: "Måns Rullgård" <mans@mansr.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Beaglebone Black U-boot won't buid - THUMB instruction issue
Date: Sat, 12 May 2018 14:50:30 +0100 [thread overview]
Message-ID: <yw1xwow97zkp.fsf@mansr.com> (raw)
In-Reply-To: <CAO=7=H2C5TJmHfxSms7g2p5E_2wiff-PPVXmq7LP62ukR2yf0A@mail.gmail.com> (John Babrick's message of "Thu, 10 May 2018 21:40:44 -0400")
John Babrick <johnbabrick@gmail.com> writes:
> Hello - I am trying to work through the book "Mastering Embedded Linux
> Programming" by Chris Simmonds, and trying to work through building u-boot
> after having built the cross toolchain. I am running into an error when I
> try to build u-boot, any ideas?
>
> johann at mars:~/uboot-work/u-boot$ make
> CROSS_COMPILE=arm-cortex_a8-linux-gnueabihf- am335x_evm_defconfig
> #
> # configuration written to .config
> #
> johann at mars:~/uboot-work/u-boot$ make
> CROSS_COMPILE=arm-cortex_a8-linux-gnueabihf-
> scripts/kconfig/conf --silentoldconfig Kconfig
> CHK include/config.h
> UPD include/config.h
> CFG u-boot.cfg
> GEN include/autoconf.mk
> GEN include/autoconf.mk.dep
> CFG spl/u-boot.cfg
> GEN spl/include/autoconf.mk
> CHK include/config/uboot.release
> CHK include/generated/version_autogenerated.h
> CHK include/generated/timestamp_autogenerated.h
> UPD include/generated/timestamp_autogenerated.h
> * CC lib/asm-offsets.s*
> *cc1: warning: target CPU does not support THUMB instructions*
> * CHK include/generated/generic-asm-offsets.h*
> * CC arch/arm/lib/asm-offsets.s*
> *cc1: warning: target CPU does not support THUMB instructions*
> CHK include/generated/asm-offsets.h
> HOSTCC scripts/dtc/dtc.o
> HOSTCC scripts/dtc/flattree.o
> HOSTCC scripts/dtc/fstree.o
> HOSTCC scripts/dtc/data.o
> HOSTCC scripts/dtc/livetree.o
> HOSTCC scripts/dtc/treesource.o
> HOSTCC scripts/dtc/srcpos.o
> HOSTCC scripts/dtc/checks.o
> HOSTCC scripts/dtc/util.o
> SHIPPED scripts/dtc/dtc-lexer.lex.c
> SHIPPED scripts/dtc/dtc-parser.tab.h
> HOSTCC scripts/dtc/dtc-lexer.lex.o
> SHIPPED scripts/dtc/dtc-parser.tab.c
> HOSTCC scripts/dtc/dtc-parser.tab.o
> HOSTLD scripts/dtc/dtc
> HOSTCC tools/mkenvimage.o
> HOSTCC tools/lib/crc32.o
> HOSTLD tools/mkenvimage
> HOSTCC tools/common/bootm.o
> HOSTCC tools/lib/fdtdec.o
> HOSTCC tools/fit_image.o
> HOSTCC tools/image-host.o
> HOSTCC tools/dumpimage.o
> HOSTLD tools/dumpimage
> HOSTCC tools/mkimage.o
> HOSTLD tools/mkimage
> CC arch/arm/cpu/armv7/cache_v7.o
> *cc1: warning: target CPU does not support THUMB instructions*
> *{standard input}: Assembler messages:*
> *{standard input}:42: Error: selected processor does not support `dsb sy'
> in ARM mode*
> *{standard input}:46: Error: selected processor does not support `isb sy'
> in ARM mode*
> *{standard input}:240: Error: selected processor does not support `dsb sy'
> in ARM mode*
> *{standard input}:244: Error: selected processor does not support `isb sy'
> in ARM mode*
> *{standard input}:368: Error: selected processor does not support `dsb sy'
> in ARM mode*
> *{standard input}:460: Error: selected processor does not support `dsb sy'
> in ARM mode*
> *{standard input}:464: Error: selected processor does not support `isb sy'
> in ARM mode*
> *{standard input}:594: Error: selected processor does not support `dsb sy'
> in ARM mode*
> *scripts/Makefile.build:278: recipe for target
> 'arch/arm/cpu/armv7/cache_v7.o' failed*
> make[1]: *** [arch/arm/cpu/armv7/cache_v7.o] Error 1
> Makefile:1363: recipe for target 'arch/arm/cpu/armv7' failed
I get a deluge of such errors with gcc-8. Use gcc-7 or earlier until
someone fixes it (or fix it yourself and send a patch).
--
Måns Rullgård
prev parent reply other threads:[~2018-05-12 13:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-11 1:40 [U-Boot] Beaglebone Black U-boot won't buid - THUMB instruction issue John Babrick
2018-05-11 12:12 ` Faiz Abbas
2018-05-11 15:52 ` Tom Rini
2018-05-12 13:50 ` Måns Rullgård [this message]
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