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After commit9d7a3741c9Author: H.J. Lu <hjl.tools@gmail.com> Date: Fri Dec 15 16:59:33 2017 -0800 Add --enable-static-pie configure option to build static PIE [BZ #19574] and commit00c714df39Author: H.J. Lu <hjl.tools@gmail.com> Date: Mon Dec 18 12:24:26 2017 -0800 Pass -no-pie to GCC only if GCC defaults to PIE [BZ #22614] $(no-pie-ldflag) is no longer effective since no-pie-ldflag is defined to -no-pie only if GCC defaults to PIE. When --enable-static-pie is used to configure glibc build and GCC doesn't default to PIE. no-pie-ldflag is undefined and these tests: elf/Makefile:LDFLAGS-tst-dlopen-aout = $(no-pie-ldflag) elf/Makefile:LDFLAGS-tst-prelink = $(no-pie-ldflag) elf/Makefile:LDFLAGS-tst-main1 = $(no-pie-ldflag) gmon/Makefile:LDFLAGS-tst-gmon := $(no-pie-ldflag) may fail to link. This patch replaces "-pie" with $(if $($(@F)-no-pie),$(no-pie-ldflag),-pie) and repleces LDFLAGS-* = $(no-pie-ldflag) with tst-*-no-pie = yes so that tst-dlopen-aout, tst-prelink, tst-main1 and tst-gmon are always built as non-PIE, with and without --enable-static-pie, regardless if GCC defaults to PIE or non-PIE. Tested with build-many-glibcs.py without --enable-static-pie as well as with --enable-static-pie for x86_64, x32 and i686. [BZ #22630] * Makeconfig (link-pie-before-libc): Replace -pie with $(if $($(@F)-no-pie),$(no-pie-ldflag),-pie). * elf/Makefile (LDFLAGS-tst-dlopen-aout): Removed. (tst-dlopen-aout-no-pie): New. (LDFLAGS-tst-prelink): Removed. (tst-prelink-no-pie): New. (LDFLAGS-tst-main1): Removed. (tst-main1-no-pie): New. * gmon/Makefile (LDFLAGS-tst-gmon): Removed. (tst-gmon-no-pie): New.
137 lines
4.3 KiB
Makefile
137 lines
4.3 KiB
Makefile
# Copyright (C) 1995-2017 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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# <http://www.gnu.org/licenses/>.
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#
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# Sub-makefile for gmon portion of the library.
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#
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subdir := gmon
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include ../Makeconfig
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headers := sys/gmon.h sys/gmon_out.h sys/profil.h
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routines := gmon mcount profil sprofil prof-freq
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tests = tst-sprofil tst-gmon
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ifeq ($(build-profile),yes)
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tests += tst-profile-static
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tests-static += tst-profile-static
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LDFLAGS-tst-profile-static = -profile
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endif
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tests += tst-gmon-static
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tests-static += tst-gmon-static
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ifeq (yesyes,$(have-fpie)$(build-shared))
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tests += tst-gmon-pie
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tests-pie += tst-gmon-pie
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ifeq (yes,$(enable-static-pie))
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tests += tst-gmon-static-pie
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tests-static += tst-gmon-static-pie
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endif
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endif
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# The mcount code won't work without a frame pointer.
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CFLAGS-mcount.c := -fno-omit-frame-pointer
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CFLAGS-tst-gmon.c := -fno-omit-frame-pointer -pg
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tst-gmon-no-pie = yes
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CRT-tst-gmon := $(csu-objpfx)gcrt1.o
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tst-gmon-ENV := GMON_OUT_PREFIX=$(objpfx)tst-gmon.data
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)tst-gmon-gprof.out
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endif
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CFLAGS-tst-gmon-static.c := $(PIE-ccflag) -fno-omit-frame-pointer -pg
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CRT-tst-gmon-static := $(csu-objpfx)gcrt1.o
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tst-gmon-static-no-pie = yes
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tst-gmon-static-ENV := GMON_OUT_PREFIX=$(objpfx)tst-gmon-static.data
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)tst-gmon-static-gprof.out
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endif
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CFLAGS-tst-gmon-pie.c := $(PIE-ccflag) -fno-omit-frame-pointer -pg
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CRT-tst-gmon-pie := $(csu-objpfx)gcrt1.o
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tst-gmon-pie-ENV := GMON_OUT_PREFIX=$(objpfx)tst-gmon-pie.data
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)tst-gmon-pie-gprof.out
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endif
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ifeq (yes,$(enable-static-pie))
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CFLAGS-tst-gmon-static-pie.c := $(PIE-ccflag) -fno-omit-frame-pointer -pg
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CRT-tst-gmon-static-pie := $(csu-objpfx)grcrt1.o
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tst-gmon-static-pie-ENV := GMON_OUT_PREFIX=$(objpfx)tst-gmon-static-pie.data
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)tst-gmon-static-pie-gprof.out
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endif
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endif
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include ../Rules
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# We cannot compile mcount.c with -pg because that would
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# create recursive calls. Just copy the normal static object.
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# On systems where `profil' is not a system call, the same
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# problem exists for the internal functions in profil.c.
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noprof := mcount $(sysdep_noprof)
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ifeq (,$(filter profil,$(unix-syscalls)))
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noprof += profil sprofil
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endif
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$(noprof:%=$(objpfx)%.op): %.op: %.o
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rm -f $@
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ln $< $@
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# GMON_OUTPUT_PREFIX only sets the output prefix. The actual file
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# name contains the PID as well.
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$(objpfx)tst-gmon.out: clean-tst-gmon-data
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clean-tst-gmon-data:
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rm -f $(objpfx)tst-gmon.data.*
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$(objpfx)tst-gmon-gprof.out: tst-gmon-gprof.sh $(objpfx)tst-gmon.out
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$(SHELL) $< $(GPROF) $(objpfx)tst-gmon $(objpfx)tst-gmon.data.* > $@; \
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$(evaluate-test)
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$(objpfx)tst-gmon-static.out: clean-tst-gmon-static-data
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clean-tst-gmon-static-data:
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rm -f $(objpfx)tst-gmon-static.data.*
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$(objpfx)tst-gmon-static-gprof.out: tst-gmon-static-gprof.sh \
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$(objpfx)tst-gmon-static.out
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$(SHELL) $< $(GPROF) $(objpfx)tst-gmon-static \
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$(objpfx)tst-gmon-static.data.* > $@; \
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$(evaluate-test)
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$(objpfx)tst-gmon-pie.out: clean-tst-gmon-pie-data
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clean-tst-gmon-pie-data:
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rm -f $(objpfx)tst-gmon-pie.data.*
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$(objpfx)tst-gmon-pie-gprof.out: tst-gmon-gprof.sh $(objpfx)tst-gmon-pie.out
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$(SHELL) $< $(GPROF) $(objpfx)tst-gmon-pie $(objpfx)tst-gmon-pie.data.* > $@; \
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$(evaluate-test)
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$(objpfx)tst-gmon-static-pie.out: clean-tst-gmon-static-pie-data
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clean-tst-gmon-static-pie-data:
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rm -f $(objpfx)tst-gmon-static-pie.data.*
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$(objpfx)tst-gmon-static-pie-gprof.out: tst-gmon-static-gprof.sh \
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$(objpfx)tst-gmon-static-pie.out
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$(SHELL) $< $(GPROF) $(objpfx)tst-gmon-static-pie \
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$(objpfx)tst-gmon-static-pie.data.* > $@; \
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$(evaluate-test)
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