Since we are in the gcc bashing mood anyway:  Add two changes for basic-block profiling: 1. use a .stabs(25) symbol to link all the data structures together with. The regular method isn't safe for the kernel. 2. add a BB before the prologue and add a BB after the epilogue,  this alows us to find the length of any counted BB.  This is a cheap and somewhat reasonable measure of actual cost.
Since we are in the gcc bashing mood anyway:  Add two changes for
basic-block profiling:
1. use a .stabs(25) symbol to link all the data structures together with.
The regular method isn't safe for the kernel.
2. add a BB before the prologue and add a BB after the epilogue,  this
alows us to find the length of any counted BB.  This is a cheap and somewhat
reasonable measure of actual cost.

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