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thekingofravens
n00b
Joined: 10 Dec 2019
Posts: 7
Location: United States
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 Posted: Tue Jun 23, 2020 5:25 pm Post subject: undefined reference to `__sync_val_compare_and_swap_8' |
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I don't really know where to put this, it is powerpc related. I am trying to see if there is a way to get sysbench compiled on 32bit powerpc.
I managed to get concurrencykit compiled, and the configure gives an option to use system-ck and system-luajit.
However, when compiling, it throws an error due to undefined reference to `__sync_val_compare_and_swap_8'.
I read this is related to GCC atomic builtins, and that it inlines new code in place of that.
I was wondering if anyone knew if these worked on powerpc and I just have some broken USE flags, or if I am just out of luck? |
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GDH-gentoo
Veteran
Joined: 20 Jul 2019
Posts: 1777
Location: South America
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| Posted: Wed Jun 24, 2020 1:21 am Post subject: |
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For amd64:
| Code: | $ gcc -E -dM - < /dev/null | grep COMPARE_AND_SWAP
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1 |
You could try seeing what's the ouput for the PowerPC host. If __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 does not appear in the output, I'd strongly suspect you're out of luck.
In Gentoo's repository, both app-benchmarks/sysbench and dev-libs/concurrencykit are keyworded only for x86 and amd64... |
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