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Since PIE can be loaded at any address, we need to subtract load address from PCs. [BZ #22284] * gmon/Makefile [$(have-fpie)$(build-shared) == yesyes] (tests, tests-pie): Add tst-gmon-pie. (CFLAGS-tst-gmon-pie.c): New. (CRT-tst-gmon-pie): Likewise. (tst-gmon-pie-ENV): Likewise. [$(have-fpie)$(build-shared) == yesyes] (tests-special): Likewise. ($(objpfx)tst-gmon-pie.out): Likewise. (clean-tst-gmon-pie-data): Likewise. ($(objpfx)tst-gmon-pie-gprof.out): Likewise. * gmon/gmon.c [PIC]: Include <link.h>. [PIC] (callback): New function. (write_hist): Add an argument for load address. Subtract load address from PCs. (write_call_graph): Likewise. (write_gmon): Call __dl_iterate_phdr to get load address, pass it to write_hist and write_call_graph. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
93 lines
2.8 KiB
Makefile
93 lines
2.8 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 ($(build-profile),yes)
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tests += tst-profile-static
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tests-static += tst-profile-static
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LDFLAGS-tst-profile-static = -profile
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endif
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ifeq (yesyes,$(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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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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LDFLAGS-tst-gmon := $(no-pie-ldflag)
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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-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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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-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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