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In __syscall_cancel_arch, there's a tail call to __syscall_do_cancel. On P10, since the caller uses the TOC and the callee is using PC-relative addressing, there's only a branch instruction with no NOPs to restore the TOC, which causes the build error. The fix involves adding the NOTOC directive to the branch instruction, informing the linker not to generate a TOC stub, thus resolving the issue. |
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