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authorVineet Gupta <Vineet.Gupta1@synopsys.com>2016-10-07 14:11:16 -0700
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-10-13 21:18:32 +0200
commitd388c3e67f78b414a24550a61b1bab49d7c01883 (patch)
treeef3a6f5b145f2813df2980ce805d7537d09e68fc /libm/s_remquo.c
parent24ca498fc322936281b0c69c271dd64979c313eb (diff)
ARC: nptl: cancellable wrappers were broken
This was reported as uClibc test suite failures of tst-mqueue3 and tst-mqueue5. The syscall args were getting clobbered, so use scratch regs which are not used for syscall args 00002690 <mq_timedsend>: ; SINGLE_THREAD_P 2690: sub r1,r25,0x448 <--- clobers r1, r2 2698: ld r2,[r1] 269c: cmp r2,0 26a0: bz mq_timedsend_nocancel ; DOCARGS (saves syscall args but r1, r2 clobbered already) 26a4: st.aw blink,[sp,-4] 26a8: st.aw r0,[sp,-4] 26ac: st.aw r1,[sp,-4] 26b0: st.aw r2,[sp,-4] 26b4: st.aw r3,[sp,-4] 26b8: st.aw r4,[sp,-4] 26bc: bl 1e28 <__librt_enable_asynccancel> Reported-by: Eugeniy Paltsev <paltsev@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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