-# Copyright (C) 1991-2018 Free Software Foundation, Inc.
+# Copyright (C) 1991-2019 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
-# <http://www.gnu.org/licenses/>.
+# <https://www.gnu.org/licenses/>.
#
# Common rules for making the GNU C library. This file is included
py-const-files := $(patsubst %.pysym,%.py,$(gen-py-const-headers))
py-const-dir := $(objpfx)
py-const := $(addprefix $(py-const-dir),$(py-const-files))
-py-const-script := $(..)scripts/gen-py-const.awk
+py-const-script := $(..)scripts/gen-as-const.py
-# This is a hack we use to generate .py files with constants for Python
-# pretty printers. It works the same way as gen-as-const.
-# See scripts/gen-py-const.awk for details on how the awk | gcc mechanism
-# works.
+# This is a hack we use to generate .py files with constants for
+# Python code.
#
-# $@.tmp and $@.tmp2 are temporary files we use to store the partial contents
-# of the target file. We do this instead of just writing on $@ because, if the
-# build process terminates prematurely, re-running Make wouldn't run this rule
-# since Make would see that the target file already exists (despite it being
-# incomplete).
+# $@.tmp is a temporary file we use to store the partial contents of
+# the target file. We do this instead of just writing on $@ because,
+# if the build process terminates prematurely, re-running Make
+# wouldn't run this rule since Make would see that the target file
+# already exists (despite it being incomplete).
#
-# The sed line replaces "@name@SOME_NAME@value@SOME_VALUE@" strings from the
-# output of 'gcc -S' with "SOME_NAME = SOME_VALUE" strings.
-# The '-n' option, combined with the '/p' command, makes sed output only the
-# modified lines instead of the whole input file. The output is redirected
-# to a .py file; we'll import it in the pretty printers file to read
-# the constants generated by gen-py-const.awk.
-# The regex has two capturing groups, for SOME_NAME and SOME_VALUE
-# respectively. Notice SOME_VALUE may be prepended by a special character,
-# depending on the assembly syntax (e.g. immediates are prefixed by a '$'
-# in AT&T x86, and by a '#' in ARM). We discard it using a complemented set
-# before the second capturing group.
+# The output is redirected to a .py file; we'll import it in the main
+# Python code to read the constants generated by gen-as-const.py.
$(py-const): $(py-const-dir)%.py: %.pysym $(py-const-script) \
$(common-before-compile)
$(make-target-directory)
- $(AWK) -f $(py-const-script) $< \
- | $(CC) -S -o $@.tmp $(CFLAGS) $(CPPFLAGS) -x c -
- echo '# GENERATED FILE\n' > $@.tmp2
- echo '# Constant definitions for pretty printers.' >> $@.tmp2
- echo '# See gen-py-const.awk for details.\n' >> $@.tmp2
- sed -n -r 's/^.*@name@([^@]+)@value@[^[:xdigit:]Xx-]*([[:xdigit:]Xx-]+)@.*/\1 = \2/p' \
- $@.tmp >> $@.tmp2
- mv -f $@.tmp2 $@
- rm -f $@.tmp
+ $(PYTHON) $(py-const-script) --python \
+ --cc="$(CC) $(CFLAGS) $(CPPFLAGS)" $< \
+ > $@.tmp
+ mv -f $@.tmp $@
generated += $(py-const)
endif # gen-py-const-headers
link-libc-args = -Wl,--start-group \
$(libc-for-link) \
$(common-objpfx)libc_nonshared.a \
- $(as-needed) $(elf-objpfx)ld.so $(no-as-needed) \
+ -Wl,--as-needed $(elf-objpfx)ld.so -Wl,--no-as-needed \
-Wl,--end-group
# The corresponding shared libc to use. This may be modified for a
LC_ALL=C $(OBJDUMP) --dynamic-syms $< > $@T
mv -f $@T $@
-# A sysdeps/.../Makefile can set abilist-pattern to something like
-# %-foo.abilist to look for libc-foo.abilist instead of libc.abilist.
-# This makes sense if multiple ABIs can be most cleanly supported by a
-# configuration without using separate sysdeps directories for each.
-ifdef abilist-pattern
-vpath $(abilist-pattern) $(+sysdep_dirs)
-endif
-
vpath %.abilist $(+sysdep_dirs)
# The .PRECIOUS rule prevents the files built by an implicit rule whose
.PRECIOUS: %.symlist
generated += $(extra-libs:=.symlist)
-ifdef abilist-pattern
-$(objpfx)check-abi-%.out: $(common-objpfx)config.make $(abilist-pattern) \
- $(objpfx)%.symlist
- $(check-abi-pattern); \
- $(evaluate-test)
-$(objpfx)check-abi-%.out: $(common-objpfx)config.make $(abilist-pattern) \
- $(common-objpfx)%.symlist
- $(check-abi-pattern); \
- $(evaluate-test)
-endif
$(objpfx)check-abi-%.out: $(common-objpfx)config.make %.abilist \
$(objpfx)%.symlist
$(check-abi); \
$(common-objpfx)%.symlist
$(check-abi); \
$(evaluate-test)
-define check-abi-pattern
- diff -p -U 0 $(filter $(abilist-pattern),$^) $(filter %.symlist,$^) \
- > $@
-endef
define check-abi
diff -p -U 0 $(filter %.abilist,$^) $(filter %.symlist,$^) > $@
endef
-ifdef abilist-pattern
-update-abi-%: $(objpfx)%.symlist $(abilist-pattern)
- $(update-abi-pattern)
-update-abi-%: $(common-objpfx)%.symlist $(abilist-pattern)
- $(update-abi-pattern)
-endif
update-abi-%: $(objpfx)%.symlist %.abilist
$(update-abi)
update-abi-%: $(common-objpfx)%.symlist %.abilist
$(update-abi)
-define update-abi-pattern
-@if cmp -s $^ 2> /dev/null; \
- then \
- echo '+++ $(filter $(abilist-pattern),$^) is unchanged'; \
- else cp -f $^; \
- echo '*** Now check $(filter $(abilist-pattern),$^) changes for correctness ***'; \
- fi
-endef
define update-abi
@if cmp -s $^ 2> /dev/null; \
then \
fi
endef
-# Patch all .abilist files for one DSO. The find command locates
-# abilist files for all architectures. The regular expression in the
-# find invocation is needed to separate libc.abilist and
-# libcrypt.abilist, for example. It assumes that abilist-pattern, if
-# set, is of the form "%-SUFFIX", and not "%SUFFIX", that is, there is
-# a non-alphanumeric seperator between the pattern and the suffix
-# added. The abilist files in /generic/ are filtered out because
-# these are expected to remain empty.
+# Patch all .abilist files for one DSO. The find command locates abilist
+# files for all architectures. The abilist files in /generic/ are
+# filtered out because these are expected to remain empty.
define update-all-abi
$(SHELL) $(..)scripts/update-abilist.sh $^ \
- $$(find $(..)sysdeps \
- -regextype posix-egrep -regex '.*/$*([^a-z0-9].*)?\.abilist$$' \
- \! -regex '.*/generic/.*')
+ $$(find $(..)sysdeps -name '$*.abilist' \! -path '*/generic/*')
endef
-ifdef abilist-pattern
-update-all-abi-%: $(abilist-pattern) $(objpfx)%.symlist
- $(update-all-abi)
-update-all-abi-%: $(abilist-pattern) $(common-objpfx)%.symlist
- $(update-all-abi)
-endif
update-all-abi-%: %.abilist $(objpfx)%.symlist
$(update-all-abi)
update-all-abi-%: %.abilist $(common-objpfx)%.symlist
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