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Andi Kleen 1c31f6c896 Allow changing the fentry section per file and per function
When dynamically patching in/out instrumentation it can be useful
to handle different classes of functions differently. Add support
for changing the fentry section name on the command line
or as a function attributes. This allows to mark functions differently,
and handle them differently in dynamic patching.

gcc/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

	* config/i386/i386.c (current_fentry_section): Add.
	(x86_function_profiler): Handle fentry section.
	(ix86_attribute_table): Add fentry section.
	* config/i386/i386.opt: Add -mfentry-section.
	* doc/extend.texi: Document fentry_section attribute.
	* doc/invoke.texi: Document -mfentry-section.

gcc/testsuite/:

2018-11-29  Andi Kleen  <ak@linux.intel.com>

	* gcc.target/i386/fentryname2.c: New test.
	* gcc.target/i386/fentryname3.c: New test.

From-SVN: r266654
2018-11-29 23:11:59 +00:00
config
contrib Add filters for D language sources to contrib/update-copyright.py 2018-11-26 21:59:04 +00:00
fixincludes
gcc Allow changing the fentry section per file and per function 2018-11-29 23:11:59 +00:00
gnattools
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libbacktrace [libbacktrace] Fix segfault upon allocation failure 2018-11-28 14:06:23 +00:00
libcc1
libcpp PR preprocessor/83173: Enhance -fdump-internal-locations output 2018-11-27 16:04:31 +00:00
libdecnumber
libffi
libgcc [RS6000] libgcc cfi 2018-11-27 12:29:56 +10:30
libgfortran Make recursion_check work for multiple threads 2018-11-23 22:42:03 +02:00
libgo compiler: add '$' to names in expression export data 2018-11-27 21:25:58 +00:00
libgomp re PR tree-optimization/88182 (ICE in vectorizable_reduction, at tree-vect-loop.c:6465) 2018-11-28 08:29:16 +00:00
libhsail-rt
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libphobos libphobos: Merge common version blocks using arch_any conditions 2018-11-28 21:53:06 +00:00
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libstdc++-v3 Only include bits/stl_algo.h for C++20. 2018-11-29 15:17:17 +00:00
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MAINTAINERS Changed email ID to existing one. 2018-11-28 19:55:28 +05:30
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