1## Common automake fragments for elfutils subdirectory makefiles. 2## 3## Copyright (C) 2010, 2014, 2016 Red Hat, Inc. 4## 5## This file is part of elfutils. 6## 7## This file is free software; you can redistribute it and/or modify 8## it under the terms of either 9## 10## * the GNU Lesser General Public License as published by the Free 11## Software Foundation; either version 3 of the License, or (at 12## your option) any later version 13## 14## or 15## 16## * the GNU General Public License as published by the Free 17## Software Foundation; either version 2 of the License, or (at 18## your option) any later version 19## 20## or both in parallel, as here. 21## 22## elfutils is distributed in the hope that it will be useful, but 23## WITHOUT ANY WARRANTY; without even the implied warranty of 24## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 25## General Public License for more details. 26## 27## You should have received copies of the GNU General Public License and 28## the GNU Lesser General Public License along with this program. If 29## not, see <http://www.gnu.org/licenses/>. 30## 31 32DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -DLOCALEDIR='"${localedir}"' 33AM_CPPFLAGS = -I. -I$(srcdir) -I$(top_srcdir)/lib -I.. 34 35# Drop the 'u' flag that automake adds by default. It is incompatible 36# with deterministic archives. 37ARFLAGS = cr 38 39# Warn about stack usage of more than 256K = 262144 bytes. 40if ADD_STACK_USAGE_WARNING 41STACK_USAGE_WARNING=-Wstack-usage=262144 42else 43STACK_USAGE_WARNING= 44endif 45 46if SANE_LOGICAL_OP_WARNING 47LOGICAL_OP_WARNING=-Wlogical-op 48else 49LOGICAL_OP_WARNING= 50endif 51 52if HAVE_DUPLICATED_COND_WARNING 53DUPLICATED_COND_WARNING=-Wduplicated-cond 54else 55DUPLICATED_COND_WARNING= 56endif 57 58if HAVE_NULL_DEREFERENCE_WARNING 59NULL_DEREFERENCE_WARNING=-Wnull-dereference 60else 61NULL_DEREFERENCE_WARNING= 62endif 63 64if HAVE_IMPLICIT_FALLTHROUGH_WARNING 65# Use strict fallthrough. Only __attribute__((fallthrough)) will prevent the 66# warning 67IMPLICIT_FALLTHROUGH_WARNING=-Wimplicit-fallthrough=5 68else 69IMPLICIT_FALLTHROUGH_WARNING= 70endif 71 72AM_CFLAGS = -std=gnu99 -Wall -Wshadow -Wformat=2 \ 73 -Wold-style-definition -Wstrict-prototypes -Wtrampolines \ 74 $(LOGICAL_OP_WARNING) $(DUPLICATED_COND_WARNING) \ 75 $(NULL_DEREFERENCE_WARNING) $(IMPLICIT_FALLTHROUGH_WARNING) \ 76 $(if $($(*F)_no_Werror),,-Werror) \ 77 $(if $($(*F)_no_Wunused),,-Wunused -Wextra) \ 78 $(if $($(*F)_no_Wstack_usage),,$(STACK_USAGE_WARNING)) \ 79 $(if $($(*F)_no_Wpacked_not_aligned),-Wno-packed-not-aligned,) \ 80 $($(*F)_CFLAGS) 81 82COMPILE.os = $(filter-out -fprofile-arcs -ftest-coverage, $(COMPILE)) 83 84DEFS.os = -DPIC -DSHARED 85if SYMBOL_VERSIONING 86DEFS.os += -DSYMBOL_VERSIONING 87else 88endif 89 90%.os: %.c %.o 91if AMDEP 92 $(AM_V_CC)if $(COMPILE.os) -c -o $@ $(fpic_CFLAGS) $(DEFS.os) -MT $@ -MD -MP \ 93 -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ 94 then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ 95 rm -f "$(DEPDIR)/$*.Tpo"; \ 96 else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ 97 fi 98else 99 $(AM_V_CC)$(COMPILE.os) -c -o $@ $(fpic_CFLAGS) $(DEFS.os) $< 100endif 101 102CLEANFILES = *.gcno *.gcda 103 104textrel_msg = echo "WARNING: TEXTREL found in '$@'" 105if FATAL_TEXTREL 106textrel_found = $(textrel_msg); exit 1 107else 108textrel_found = $(textrel_msg) 109endif 110textrel_check = if $(READELF) -d $@ | fgrep -q TEXTREL; then $(textrel_found); fi 111 112print-%: 113 @echo $*=$($*) 114