s390.c (s390_hotpatch_trampoline_halfwords_default): New constant

s390.c (s390_hotpatch_trampoline_halfwords_default): New constant

2013-12-19  Dominik Vogt  <vogt@linux.vnet.ibm.com>
	    Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_hotpatch_trampoline_halfwords_default): New
	constant
	(s390_hotpatch_trampoline_halfwords_max): New constant
	(s390_hotpatch_trampoline_halfwords): New static variable
	(get_hotpatch_attribute): New function
	(s390_handle_hotpatch_attribute): New function
	(s390_attribute_table): New target specific attribute table to implement
	the hotpatch attribute
	(s390_option_override): Parse hotpatch options
	(s390_function_num_hotpatch_trampoline_halfwords): New function
	(s390_can_inline_p): Implement target hook to
	suppress hotpatching for explicitly inlined functions
	(s390_asm_output_function_label): Generate hotpatch prologue
	(TARGET_ATTRIBUTE_TABLE): Define to implement target attribute table
	(TARGET_CAN_INLINE_P): Define to implement target hook
	* config/s390/s390.opt (mhotpatch): New options -mhotpatch, -mhotpatch=
	* config/s390/s390-protos.h (s390_asm_output_function_label): Add
	prototype
	* config/s390/s390.h (ASM_OUTPUT_FUNCTION_LABEL): Target specific
	function label generation for hotpatching
	(FUNCTION_BOUNDARY): Align functions to eight bytes
	* doc/extend.texi: Document hotpatch attribute
	* doc/invoke.texi: Document -mhotpatch option

2013-12-19  Dominik Vogt  <vogt@linux.vnet.ibm.com>
	    Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc/testsuite/gcc.target/s390/hotpatch-1.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-2.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-3.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-4.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-5.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-6.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-7.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-8.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-9.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-10.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-11.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-12.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-1.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-2.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-3.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-4.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-5.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-6.c: New test
	* gcc/testsuite/gcc.target/s390/hotpatch-compile-7.c: New test

Co-Authored-By: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
From-SVN: r206111