[PATCH AUTOSEL 3.18 14/19] perf powerpc: Fix callchain ip filtering

From: Sandipan Das [ Upstream commit c715fcfda5a08edabaa15508742be926b7ee51db ] For powerpc64, redundant entries in the callchain are filtered out by determining the state of the return address and the stack frame using DWARF debug information. For making these filtering decisions we must

[PATCH AUTOSEL 3.18 14/19] perf powerpc: Fix callchain ip filtering

From: Sandipan Das [ Upstream commit c715fcfda5a08edabaa15508742be926b7ee51db ] For powerpc64, redundant entries in the callchain are filtered out by determining the state of the return address and the stack frame using DWARF debug information. For making these filtering decisions we must