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0c25125780
If glibc is built with -fomit-frame-pointer to undo the effect of configuring GCC with --enable-frame-pointer, using -pg by itself results in a build failure: gcc: error: -pg and -fomit-frame-pointer are incompatible
72 lines
2.2 KiB
Makefile
72 lines
2.2 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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# 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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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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