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[google gcc-4.9] FDO build for linux kernel

From: Rong Xu <xur at google dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: David Li <davidxl at google dot com>
Date: Thu, 13 Nov 2014 10:40:50 -0800
Subject: [google gcc-4.9] FDO build for linux kernel
Authentication-results: sourceware.org; auth=none

Here is patch that ports our work on FDO linux kernel build support to
gcc-4_9. With this patch, kernel will use the libgcov functions to
dump the gcda files.

This patch also enables LIPO build. But the module grouping is not
computed online. We will use gcov-tool to do this offline.

Tested with kernel FDO build, regression and google internal benchmarks.

Thanks,

-Rong

Attachment: kfdo_patch
Description: Binary data

Follow-Ups:
- Re: [google gcc-4.9] FDO build for linux kernel
  - From: Xinliang David Li

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