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2d7ed98add
make-4.4 will add long flags to MAKEFLAGS variable:
* WARNING: Backward-incompatibility!
Previously only simple (one-letter) options were added to the MAKEFLAGS
variable that was visible while parsing makefiles. Now, all options
are available in MAKEFLAGS.
This causes locale builds to fail when long options are used:
$ make --shuffle
...
make -C localedata install-locales
make: invalid shuffle mode: '1662724426r'
The change fixes it by passing eash option via whitespace and dashes.
That way option is appended to both single-word form and whitespace
separated form.
While at it fixed --silent mode detection in $(MAKEFLAGS) by filtering
out --long-options. Otherwise options like --shuffle flag enable silent
mode unintentionally. $(silent-make) variable consolidates the checks.
Resolves: BZ# 29564
CC: Paul Smith <psmith@gnu.org>
CC: Siddhesh Poyarekar <siddhesh@gotplt.org>
Signed-off-by: Sergei Trofimovich <slyich@gmail.com>
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
150 lines
5.1 KiB
Plaintext
150 lines
5.1 KiB
Plaintext
# Subroutine makefile for compiling libc modules linked into dynamic linker.
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# Copyright (C) 2002-2022 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <https://www.gnu.org/licenses/>.
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# This makefile is never used by itself, but only from the rtld-libc.a
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# rule in Makefile, which does make -f librtld.mk -f rtld-Rules.
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# librtld.mk is the generated file containing variable definitions for
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# `rtld-subdirs', a subset of the top-level $(subdirs) list; and for each
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# SUBDIR in $(rtld-subdirs), `rtld-SUBDIR' listing `module.os' file names.
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.PHONY: rtld-all
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rtld-all:
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# When run from the elf/Makefile to build rtld-libc.a, $(subdir) is elf.
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ifneq ($(subdir),elf)
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ifndef rtld-modules
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$(error rtld-modules not set)
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endif
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endif
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ifndef rtld-modules
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# Running to build rtld-libc.a, driving runs of $(rtld-subdir-make), below.
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ifndef rtld-subdirs
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$(error This makefile is a subroutine of elf/Makefile not to be used directly)
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endif
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include ../Makeconfig
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rtld-all: $(objpfx)rtld-libc.a
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$(objpfx)rtld-libc.a: $(foreach dir,$(rtld-subdirs),\
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$(addprefix $(common-objpfx)$(dir)/rtld-,\
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$(rtld-$(dir))))
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@-rm -f $@T
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$(AR) cq$(verbose) $@T $^
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mv -f $@T $@
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# Use the verbose option of ar and tar when not running silently.
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ifeq ($(silent-make),no) # if not -s
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verbose := v
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else # -s
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verbose :=
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endif # not -s
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# For each subdirectory, define a pattern rule that makes all of that
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# subdirectory's modules at once with one recursive make command.
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object-suffixes-left := $(rtld-subdirs)
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define o-iterator-doit
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$(foreach obj,$(rtld-$o),$(common-objpfx)%/rtld-$(obj)): FORCE ; \
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+$$(rtld-subdir-make)
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endef
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include $(patsubst %,../o-iterator.mk,$(object-suffixes-left))
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# This is how we descend into each subdirectory. See below.
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define rtld-subdir-make
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$(MAKE) $(subdir-args) objdir=$(objdir) \
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-f Makefile -f ../elf/rtld-Rules rtld-all \
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rtld-modules='$(addprefix rtld-,$(rtld-$*))'
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endef
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# See subdir-target-args in ../Makefile for the model.
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subdir-args = subdir=$*$(if $($*-srcdir),\
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-C $($*-srcdir) ..=`pwd`/,\
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-C $(..)$* ..=../)
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FORCE:
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else
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# In this case we are being run by $(rtld-subdir-make), above.
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# Some other subdir's Makefile has provided all its normal rules,
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# and we just provide some additional definitions.
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rtld-compile-command.S = $(compile-command.S) $(rtld-CPPFLAGS)
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rtld-compile-command.s = $(compile-command.s) $(rtld-CPPFLAGS)
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rtld-compile-command.c = $(compile-command.c) $(rtld-CPPFLAGS) $(rtld-CFLAGS)
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# These are the basic compilation rules corresponding to the Makerules ones.
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# The sysd-rules generated makefile already defines pattern rules for rtld-%
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# targets built from sysdeps source files.
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$(objpfx)rtld-%.os: rtld-%.S $(before-compile)
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$(rtld-compile-command.S)
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$(objpfx)rtld-%.os: rtld-%.s $(before-compile)
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$(rtld-compile-command.s)
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$(objpfx)rtld-%.os: rtld-%.c $(before-compile)
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$(rtld-compile-command.c)
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$(objpfx)rtld-%.os: %.S $(before-compile)
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$(rtld-compile-command.S)
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$(objpfx)rtld-%.os: %.s $(before-compile)
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$(rtld-compile-command.s)
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$(objpfx)rtld-%.os: %.c $(before-compile)
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$(rtld-compile-command.c)
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# The rules for generated source files.
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$(objpfx)rtld-%.os: $(objpfx)rtld-%.S $(before-compile)
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$(rtld-compile-command.S)
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$(objpfx)rtld-%.os: $(objpfx)rtld-%.s $(before-compile)
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$(rtld-compile-command.s)
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$(objpfx)rtld-%.os: $(objpfx)rtld-%.c $(before-compile)
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$(rtld-compile-command.c)
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$(objpfx)rtld-%.os: $(objpfx)%.S $(before-compile)
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$(rtld-compile-command.S)
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$(objpfx)rtld-%.os: $(objpfx)%.s $(before-compile)
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$(rtld-compile-command.s)
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$(objpfx)rtld-%.os: $(objpfx)%.c $(before-compile)
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$(rtld-compile-command.c)
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# The command line setting of rtld-modules (see above) tells us
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# what we need to build, and that tells us what dependency files we need.
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rtld-all: $(addprefix $(objpfx),$(rtld-modules))
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# Figure out the dependency files we need. After respecting the $(omit-deps)
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# list as applied to the names without the `rtld-', there may be none left.
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rtld-depfiles := $(patsubst %,$(objpfx)rtld-%.os.d,\
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$(filter-out $(omit-deps),\
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$(rtld-modules:rtld-%.os=%)))
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rtld-depfiles := $(strip $(wildcard $(rtld-depfiles)) \
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$(patsubst %.dt,%.d,\
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$(wildcard $(rtld-depfiles:.d=.dt))))
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ifdef rtld-depfiles
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-include $(rtld-depfiles)
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endif
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# This here is the whole point of all the shenanigans.
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# Set libof-* for each routine.
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cpp-srcs-left := $(rtld-modules:%.os=%)
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lib := rtld
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include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
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rtld-CFLAGS += $(no-stack-protector)
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endif
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