Re: [Scratchbox-users] ARM toolchain ignoring -march option
Hello all, After a lot of testing I found that I needed to reset the target (sb-conf reset) in order to fix this. I don't have a clue why this is needed and why the -march setting was being ignored without this, but at least it is now solved. Just in case someone else is having the same problem. Guillermo Rodriguez Garcia guille.rodrig...@gmail.com El 14/12/2011 17:22, Guillermo Rodriguez Garcia escribió: Hello Jussi, Thanks for your prompt answer. Something seems to be wrong, though: I am trying to use scratchbox to compile code for an armv4t target. However the available ARM toolchains seem to be ignoring the -march option, hence generating code that will not run on the target device. I have installed the latest hathor scratchbox packages available and have tested both the cs2009 and the cs2010 toolchains, same result. This is the output of sb-conf show: [sbox-mydev: ~] sb-conf show Compiler: arm-linux-cs2010q1-202 That particular compiler is Codesourcery's 2010q1, which is configured with --with-arch=armv5te so the default is march=armv5te. However, that particular toolchain has a support for armv4t also. For me the following works: [sbox-test: ~] sb-conf sh -c arm-linux-cs2010q1-202 [sbox-test: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-test: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE [sbox-test: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-test: ~] rm -f a.out ; gcc -march=armv4t /scratchbox/packages/hello.c [sbox-test: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 4T Tag_CPU_arch: v4T The cs2009q3 toolchain is not a multilib one and it defaults to armv7-a, so above is not likely to work with it. I tried to reproduce the above using exactly the same commands: [sbox-mydev: ~] sb-conf sh -c arm-linux-cs2010q1-202 [sbox-mydev: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-mydev: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE [sbox-mydev: ~] rm -f a.out ; gcc -march=armv4t /scratchbox/packages/hello.c [sbox-mydev: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE Obviously there must be something wrong, but I don't have a clue what it is. Any hints on where to look?? Thanks, Guillermo Rodriguez Garcia guille.rodrig...@gmail.com ___ Scratchbox-users mailing list Scratchbox-users@lists.scratchbox.org http://lists.scratchbox.org/cgi-bin/mailman/listinfo/scratchbox-users
Re: [Scratchbox-users] ARM toolchain ignoring -march option
On 12/14/2011 02:40 PM, Guillermo Rodriguez Garcia wrote: I am trying to use scratchbox to compile code for an armv4t target. However the available ARM toolchains seem to be ignoring the -march option, hence generating code that will not run on the target device. I have installed the latest hathor scratchbox packages available and have tested both the cs2009 and the cs2010 toolchains, same result. This is the output of sb-conf show: [sbox-mydev: ~] sb-conf show Compiler: arm-linux-cs2010q1-202 That particular compiler is Codesourcery's 2010q1, which is configured with --with-arch=armv5te so the default is march=armv5te. However, that particular toolchain has a support for armv4t also. For me the following works: [sbox-test: ~] sb-conf sh -c arm-linux-cs2010q1-202 [sbox-test: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-test: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE [sbox-test: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-test: ~] rm -f a.out ; gcc -march=armv4t /scratchbox/packages/hello.c [sbox-test: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 4T Tag_CPU_arch: v4T The cs2009q3 toolchain is not a multilib one and it defaults to armv7-a, so above is not likely to work with it. Regards, Jussi ___ Scratchbox-users mailing list Scratchbox-users@lists.scratchbox.org http://lists.scratchbox.org/cgi-bin/mailman/listinfo/scratchbox-users
Re: [Scratchbox-users] ARM toolchain ignoring -march option
Hello Jussi, Thanks for your prompt answer. Something seems to be wrong, though: I am trying to use scratchbox to compile code for an armv4t target. However the available ARM toolchains seem to be ignoring the -march option, hence generating code that will not run on the target device. I have installed the latest hathor scratchbox packages available and have tested both the cs2009 and the cs2010 toolchains, same result. This is the output of sb-conf show: [sbox-mydev: ~] sb-conf show Compiler: arm-linux-cs2010q1-202 That particular compiler is Codesourcery's 2010q1, which is configured with --with-arch=armv5te so the default is march=armv5te. However, that particular toolchain has a support for armv4t also. For me the following works: [sbox-test: ~] sb-conf sh -c arm-linux-cs2010q1-202 [sbox-test: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-test: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE [sbox-test: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-test: ~] rm -f a.out ; gcc -march=armv4t /scratchbox/packages/hello.c [sbox-test: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 4T Tag_CPU_arch: v4T The cs2009q3 toolchain is not a multilib one and it defaults to armv7-a, so above is not likely to work with it. I tried to reproduce the above using exactly the same commands: [sbox-mydev: ~] sb-conf sh -c arm-linux-cs2010q1-202 [sbox-mydev: ~] rm -f a.out ; gcc /scratchbox/packages/hello.c [sbox-mydev: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE [sbox-mydev: ~] rm -f a.out ; gcc -march=armv4t /scratchbox/packages/hello.c [sbox-mydev: ~] readelf -A a.out | head -n 4 Attribute Section: aeabi File Attributes Tag_CPU_name: 5TE Tag_CPU_arch: v5TE Obviously there must be something wrong, but I don't have a clue what it is. Any hints on where to look?? Thanks, Guillermo Rodriguez Garcia guille.rodrig...@gmail.com ___ Scratchbox-users mailing list Scratchbox-users@lists.scratchbox.org http://lists.scratchbox.org/cgi-bin/mailman/listinfo/scratchbox-users
