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authorRabin Vincent <rabin@rab.in>2012-01-24 16:52:52 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-01-25 09:24:37 +0000
commitd68133b5a81bd9c4b673c2a731ac1a33a9dc0cb8 (patch)
tree4cd5cee5bb4023fdc1f92c9fbdf733167f0a0b5a /firmware/mts_gsm.fw.ihex
parent34ae6c96a6a7db4ed8ec0524bf7fa1086b9ab2ba (diff)
ARM: 7299/1: ftrace: clear zero bit in reported IPs for Thumb-2
The dynamic ftrace ops startup test currently fails on Thumb-2 kernels: Testing tracer function: PASSED Testing dynamic ftrace: PASSED Testing dynamic ftrace ops #1: (0 0 0 0 0) FAILED! This is because while the addresses in the mcount records do not have the zero bit set, the IP reported by the mcount call does have it set (because it is copied from the LR). This mismatch causes the ops filtering in ftrace_ops_list_func() to not call the relevant tracers. Fix this by clearing the zero bit before adjusting the LR for the mcount instruction size. Also, combine the mov+sub into a single sub instruction. Acked-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'firmware/mts_gsm.fw.ihex')
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