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authorMatheus Castanho <msc@linux.ibm.com>2021-04-09 14:47:27 -0300
committerMatheus Castanho <msc@linux.ibm.com>2021-06-10 16:23:25 -0300
commitebae2f5a6f971a8f0b6c99e00f9c45ef7433924a (patch)
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parentacc85ea1eb046eee9296fbc4803b82cb485ced07 (diff)
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Add build option to disable usage of scv on powerpc
Commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef added support for the scv syscall ABI on powerpc. Since then systems that have kernel and processor support started using scv. However adding the proper support for a new syscall ABI requires changes to several other projects (e.g. qemu, valgrind, strace, kernel), which are gradually receiving support. Meanwhile, having a way to disable scv on glibc at build time can be useful for distros that may encounter conflicts with projects that still do not support the scv ABI, buying time until proper support is added. This commit adds a --disable-scv option that disables scv support and uses sc for all syscalls, like before commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef. Reviewed-by: Raphael M Zinsly <rzinsly@linux.ibm.com>
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