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954f9dc0e3
gperftools/configure.ac
Aliaksey Kandratsenka 954f9dc0e3 Add flag to disable installing unmaintained & deprecated pprof. 
Everyone should be using golang pprof from github.com/google/pprof, but
distros still ship our perl version and not everyone is aware of
better pprof yet.

This is another step in completely dropping perl pprof. We still
default to installing it, but hopefully we'll be able to convince
distros to disable this soon.

We still install pprof under pprof-symbolize name because
stack traces symbolization depends on it, and because golang pprof
won't support this feature.

This is related to issue #1038.
2018-08-26 11:37:59 -07:00

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## Process this file with autoconf to produce configure.
## In general, the safest way to proceed is to run ./autogen.sh
# make sure we're interpreted by some minimal autoconf
AC_PREREQ([2.59])
AC_INIT([gperftools],[2.7],[gperftools@googlegroups.com])
# Update this value for every release! (A:B:C will map to foo.so.(A-C).C.B)
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
TCMALLOC_SO_VERSION=9:3:5
PROFILER_SO_VERSION=4:18:4
AC_SUBST(TCMALLOC_SO_VERSION)
AC_SUBST(PROFILER_SO_VERSION)
# The argument here is just something that should be in the current directory
# (for sanity checking)
AC_CONFIG_SRCDIR(README)
AC_CONFIG_MACRO_DIR([m4])
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([dist-zip])
AC_CONFIG_HEADERS([src/config.h])
AM_MAINTAINER_MODE()
# Export the version information (for tc_version and friends)
TC_VERSION_MAJOR=`expr "$PACKAGE_VERSION" : '\([[0-9]]*\)'`
TC_VERSION_MINOR=`expr "$PACKAGE_VERSION" : '[[0-9]]*\.\([[0-9]]*\)'`
TC_VERSION_PATCH=`expr "$PACKAGE_VERSION" : '[[0-9]]*\.[[0-9]]*\(.*\)$'`
AC_SUBST(TC_VERSION_MAJOR)
AC_SUBST(TC_VERSION_MINOR)
AC_SUBST(TC_VERSION_PATCH)
AC_SUBST(PACKAGE_STRING)
AX_GENERATE_CHANGELOG
# The user can choose not to compile in the heap-profiler, the
# heap-checker, or the cpu-profiler. There's also the possibility
# for a 'fully minimal' compile, which leaves out the stacktrace
# code as well. By default, we include all of these that the
# target system supports.
default_enable_cpu_profiler=yes
default_enable_heap_profiler=yes
default_enable_heap_checker=yes
default_enable_debugalloc=yes
default_enable_minimal=no
default_tcmalloc_alignment=16
need_nanosleep=yes # Used later, to decide if to run ACX_NANOSLEEP
case "$host" in
*-mingw*) default_enable_minimal=yes; default_enable_debugalloc=no;
need_nanosleep=no;;
*-cygwin*) default_enable_heap_checker=no; default_enable_cpu_profiler=no;;
*-freebsd*) default_enable_heap_checker=no;;
*-darwin*) default_enable_heap_checker=no;;
esac
# Currently only backtrace works on s390.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __s390__])],
[default_enable_libunwind=no
default_enable_backtrace=yes],
[default_enable_libunwind=yes
default_enable_backtrace=no])
# Disable libunwind linking on ppc64 by default.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __PPC64__])],
[default_enable_libunwind=no
default_tcmalloc_pagesize=64],
[default_enable_libunwind=yes
default_tcmalloc_pagesize=8])
AC_ARG_ENABLE([cpu-profiler],
[AS_HELP_STRING([--disable-cpu-profiler],
[do not build the cpu profiler])],
[],
[enable_cpu_profiler="$default_enable_cpu_profiler"])
AC_ARG_ENABLE([heap-profiler],
[AS_HELP_STRING([--disable-heap-profiler],
[do not build the heap profiler])],
[],
[enable_heap_profiler="$default_enable_heap_profiler"])
AC_ARG_ENABLE([heap-checker],
[AS_HELP_STRING([--disable-heap-checker],
[do not build the heap checker])],
[],
[enable_heap_checker="$default_enable_heap_checker"])
AC_ARG_ENABLE([debugalloc],
[AS_HELP_STRING([--disable-debugalloc],
[do not build versions of libs with debugalloc])],
[],
[enable_debugalloc="$default_enable_debugalloc"])
AC_ARG_ENABLE([minimal],
[AS_HELP_STRING([--enable-minimal],
[build only tcmalloc-minimal (and maybe tcmalloc-minimal-debug)])],
[],
[enable_minimal="$default_enable_minimal"])
if test "$enable_minimal" = yes; then
enable_cpu_profiler=no
enable_heap_profiler=no
enable_heap_checker=no
fi
AC_ARG_ENABLE([stacktrace-via-backtrace],
[AS_HELP_STRING([--enable-stacktrace-via-backtrace],
[enable use of backtrace() for stacktrace capturing (may deadlock)])],
[enable_backtrace=yes],
[enable_backtrace="$default_enable_backtrace"])
AC_ARG_ENABLE([libunwind],
[AS_HELP_STRING([--enable-libunwind],
[enable libunwind linking])],
[],
[enable_libunwind="$default_enable_libunwind"])
AC_ARG_WITH([tcmalloc-pagesize],
[AS_HELP_STRING([--with-tcmalloc-pagesize],
[Set the tcmalloc internal page size to 8K, 32K or 64K])],
[],
[with_tcmalloc_pagesize=$default_tcmalloc_pagesize])
AC_ARG_WITH([tcmalloc-alignment],
[AS_HELP_STRING([--with-tcmalloc-alignment],
[Set the tcmalloc allocation alignment to 8 or 16 bytes])],
[],
[with_tcmalloc_alignment=$default_tcmalloc_alignment])
case "$with_tcmalloc_pagesize" in
8)
#Default tcmalloc page size.
;;
32)
AC_DEFINE(TCMALLOC_32K_PAGES, 1,
[Define 32K of internal pages size for tcmalloc]);;
64)
AC_DEFINE(TCMALLOC_64K_PAGES, 1,
[Define 64K of internal pages size for tcmalloc]);;
*)
AC_MSG_WARN([${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size.])
esac
case "$with_tcmalloc_alignment" in
8)
AC_DEFINE(TCMALLOC_ALIGN_8BYTES, 1,
[Define 8 bytes of allocation alignment for tcmalloc]);;
16)
#Default tcmalloc allocation alignment.
;;
*)
AC_MSG_WARN([${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment.])
esac
# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_CPP
AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
AM_PROG_CC_C_O # shrug: autogen.sh suddenly needs this for some reason
AX_CXX_COMPILE_STDCXX(11, ext, mandatory)
# Check if we have an objcopy installed that supports -W
AC_CHECK_TOOL([OBJCOPY], [objcopy], [])
AS_IF([test -n "$OBJCOPY"], [dnl
AC_CACHE_CHECK([if $OBJCOPY supports -W], gpt_cv_objcopy_weaken, [dnl
AC_LINK_IFELSE([AC_LANG_PROGRAM([void foo() {} int main() {return 0;}])], [dnl
AS_IF(["$OBJCOPY" -W foo conftest$ac_exeext /dev/null],
[gpt_cv_objcopy_weaken=yes], [gpt_cv_objcopy_weaken=no])],
[gpt_cv_objcopy_weaken=no])])],
[gpt_cv_objcopy_weaken=no])
AM_CONDITIONAL(HAVE_OBJCOPY_WEAKEN, test $gpt_cv_objcopy_weaken = yes)
AC_PROG_LIBTOOL
AC_C_INLINE
AX_C___ATTRIBUTE__
AC_MSG_CHECKING(for __attribute__((aligned(N))) on functions)
AC_CACHE_VAL(ac_cv___attribute__aligned_fn, [
AC_TRY_COMPILE(
[#include <stdlib.h>
void foo(void) __attribute__((aligned(128)));
void foo(void) { exit(1); }],
[],
ac_cv___attribute__aligned_fn=yes,
ac_cv___attribute__aligned_fn=no
)])
if test "$ac_cv___attribute__aligned_fn" = "yes"; then
AC_DEFINE(HAVE___ATTRIBUTE__ALIGNED_FN, 1, [define if your compiler supports alignment of functions])
fi
AC_MSG_RESULT($ac_cv___attribute__aligned_fn)
# Check whether some low-level functions/files are available
AC_HEADER_STDC
# TODO(csilvers): we could remove a lot when WITH_CPU_PROFILER etc is "no".
AC_CHECK_TYPES([__int64]) # defined in some windows platforms
AC_CHECK_TYPES([struct mallinfo],,, [#include <malloc.h>])
AC_CHECK_TYPES([Elf32_Versym],,, [#include <elf.h>]) # for vdso_support.h
AC_CHECK_FUNCS(sbrk) # for tcmalloc to get memory
AC_CHECK_FUNCS(geteuid) # for turning off services when run as root
AC_CHECK_FUNCS(fork) # for the pthread_atfork setup
AC_CHECK_HEADERS(features.h) # for vdso_support.h
AC_CHECK_HEADERS(malloc.h) # some systems define stuff there, others not
AC_CHECK_HEADERS(glob.h) # for heap-profile-table (cleaning up profiles)
AC_CHECK_HEADERS(execinfo.h) # for stacktrace? and heapchecker_unittest
AC_CHECK_HEADERS(unwind.h) # for stacktrace
AC_CHECK_HEADERS(sched.h) # for being nice in our spinlock code
AC_CHECK_HEADERS(conflict-signal.h) # defined on some windows platforms?
AC_CHECK_HEADERS(sys/prctl.h) # for thread_lister (needed by leak-checker)
AC_CHECK_HEADERS(linux/ptrace.h)# also needed by leak-checker
AC_CHECK_HEADERS(sys/syscall.h)
AC_CHECK_HEADERS(sys/socket.h) # optional; for forking out to symbolizer
AC_CHECK_HEADERS(sys/wait.h) # optional; for forking out to symbolizer
AC_CHECK_HEADERS(poll.h) # optional; for forking out to symbolizer
AC_CHECK_HEADERS(fcntl.h) # for tcmalloc_unittest
AC_CHECK_HEADERS(grp.h) # for heapchecker_unittest
AC_CHECK_HEADERS(pwd.h) # for heapchecker_unittest
AC_CHECK_HEADERS(sys/resource.h) # for memalign_unittest.cc
AC_CHECK_HEADERS(valgrind.h) # we have a local copy if this isn't found
AC_CHECK_HEADERS(sys/cdefs.h) # Where glibc defines __THROW
AC_CHECK_HEADERS(features.h) # Where __GLIBC__ is defined
# We also need <ucontext.h>/<sys/ucontext.h>, but we get those from
# AC_PC_FROM_UCONTEXT, below.
# We override a lot of memory allocation routines, not all of which are
# standard. For those the system doesn't declare, we'll declare ourselves.
AC_CHECK_DECLS([cfree,
posix_memalign,
memalign,
valloc,
pvalloc],,,
[#define _XOPEN_SOURCE 600
#include <stdlib.h>
#include <malloc.h>])
if test "$ac_cv_type_struct_mallinfo" = yes; then
AC_SUBST(ac_cv_have_struct_mallinfo, 1) # gperftools/tcmalloc.h needs this
else
AC_SUBST(ac_cv_have_struct_mallinfo, 0)
fi
# We need to check for mmap. cygwin supports mmap, but the autoconf
# test doesn't work on cygwin:
# http://www.cygwin.com/ml/cygwin/2002-04/msg00412.html
# This workaround comes from
# http://cygwin.com/ml/cygwin/2004-11/msg00138.html
case "$host" in
*-*-mingw*)
dnl mingw doesn't have mmap, not worth
dnl checking. Especially given that mingw can be a
dnl cross-compiler
;;
*-*-cygwin*)
ac_cv_func_mmap_fixed_mapped=yes
AC_DEFINE(HAVE_MMAP, 1,
[Define to 1 if you have a working `mmap' system call.])
;;
*) if test "$cross_compiling" = yes; then
ac_cv_func_mmap_fixed_mapped=yes
AC_DEFINE(HAVE_MMAP, 1,
[Define to 1 if you have a working `mmap' system call.])
else
AC_FUNC_MMAP
fi
;;
esac
# If AtomicWord != Atomic32, we need to define two versions of all the
# atomicops functions. If they're the same, we want to define only one.
AC_MSG_CHECKING([if int32_t is the same type as intptr_t])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h>]], [[int32_t v1 = 0; intptr_t v2 = 0; return (&v1 - &v2)]])],[AC_DEFINE(INT32_EQUALS_INTPTR, 1,
Define to 1 if int32_t is equivalent to intptr_t)
AC_MSG_RESULT([yes])],[AC_MSG_RESULT([no])])
# We want to access the "PC" (Program Counter) register from a struct
# ucontext. Every system has its own way of doing that. We try all the
# possibilities we know about. Note REG_PC should come first (REG_RIP
# is also defined on solaris, but does the wrong thing). But don't
# bother if we're not doing cpu-profiling.
# [*] means that we've not actually tested one of these systems
if test "$enable_cpu_profiler" = yes; then
AC_PC_FROM_UCONTEXT(AC_MSG_WARN(Could not find the PC. Will not try to compile libprofiler...);
enable_cpu_profiler=no)
fi
# Some tests test the behavior of .so files, and only make sense for dynamic.
AM_CONDITIONAL(ENABLE_STATIC, test "$enable_static" = yes)
# We want to link in libunwind if it is enabled and exists.
UNWIND_LIBS=
if test "$enable_libunwind" = yes; then
AC_CHECK_HEADERS([libunwind.h],
[AC_CHECK_LIB(unwind, backtrace, UNWIND_LIBS=-lunwind)
will_use_libunwind=yes])
fi
AC_SUBST(UNWIND_LIBS)
# On x86_64, instead of libunwind, we can choose to compile with frame-pointers.
AC_ARG_ENABLE(frame_pointers,
AS_HELP_STRING([--enable-frame-pointers],
[On x86_64 systems, compile with -fno-omit-frame-pointer (see INSTALL)]),
, enable_frame_pointers=no)
AM_CONDITIONAL(ENABLE_FRAME_POINTERS, test "$enable_frame_pointers" = yes)
AC_MSG_CHECKING([for x86 without frame pointers])
# Some x86_64 systems do not insert frame pointers by default.
# We want to see if the current system is one of those.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __x86_64__ == 1 ? 0 : 1])],
[is_x86_64=yes], [is_x86_64=no])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -S -O2 -o fp.s"
# This test will always fail because we don't name our output file properly.
# We do our own determination of success/failure in the grep, below.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int f(int x) {return x;}], [return f(0);])],
[:], [:])
x86_no_fp_by_default=no
AS_IF([test "$is_x86_64" = yes && ! grep 'mov.*rsp.*rbp' fp.s >/dev/null 2>&1], [x86_no_fp_by_default=yes])
AM_CONDITIONAL(X86_64_AND_NO_FP_BY_DEFAULT,
test "$x86_no_fp_by_default" = yes)
rm fp.s
CFLAGS="$OLD_CFLAGS"
AC_MSG_RESULT([$x86_no_fp_by_default])
# We need to know if we're i386 so we can turn on -mmms, which is not
# on by default for i386 (it is for x86_64).
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __i386__ == 1 ? 0 : 1])],
[is_i386=yes], [is_i386=no])
AM_CONDITIONAL(I386, test "$is_i386" = yes)
# See if the compiler supports -Wno-unused-result.
# Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling
# __attribute__((warn_unused_result)) for things like write(),
# which we don't care about.
AC_CACHE_CHECK([if the compiler supports -Wno-unused-result],
perftools_cv_w_no_unused_result,
[OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-error -Wunused-result"
# gcc doesn't warn about unknown flags unless it's
# also warning for some other purpose, hence the
# divide-by-0. (We use -Wno-error to make sure the
# divide-by-0 doesn't cause this test to fail!)
#
# Also gcc is giving only warning for unknown flags of
# -Wno-XXX form. So in order to detect support we're
# using -Wunused-result which will cause gcc to give
# error which we can detect.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, return 1/0)],
perftools_cv_w_no_unused_result=yes,
perftools_cv_w_no_unused_result=no)
CFLAGS="$OLD_CFLAGS"])
AM_CONDITIONAL(HAVE_W_NO_UNUSED_RESULT,
test "$perftools_cv_w_no_unused_result" = yes)
AC_ARG_ENABLE([deprecated-pprof],
[AS_HELP_STRING([--disable-deprecated-pprof],
[do not install old deprecated and unmaintained bundled pprof
(see github.com/google/pprof for supported version)])],
[enable_pprof="$enableval"],
[enable_pprof=yes])
AM_CONDITIONAL(INSTALL_PPROF,
[test "x$enable_pprof" = xyes])
AC_ARG_ENABLE([dynamic-sized-delete-support],
[AS_HELP_STRING([--enable-dynamic-sized-delete-support],
[try to build run-time switch for sized delete operator])],
[enable_dyn_sized_delete="$enableval"],
[enable_dyn_sized_delete=no])
AS_IF([test "x$enable_dyn_sized_delete" = xyes],
[AC_DEFINE([ENABLE_DYNAMIC_SIZED_DELETE], 1,
[Build runtime detection for sized delete])])
AC_ARG_ENABLE([sized-delete],
[AS_HELP_STRING([--enable-sized-delete],
[build sized delete operator])],
[enable_sized_delete="$enableval"],
[enable_sized_delete="no"])
AS_IF([test "x$enable_sized_delete" = xyes],
[AC_DEFINE([ENABLE_SIZED_DELETE], 1, [Build sized deletion operators])
AC_MSG_NOTICE([Will build sized deallocation operators])],
[AS_IF([test "x$enable_dyn_sized_delete" = xyes],
[AC_MSG_NOTICE([Will build dynamically detected sized deallocation operators])],
[AC_MSG_NOTICE([Will build sized deallocation operators that ignore size])])])
AC_CACHE_CHECK([if C++ compiler supports -fsized-deallocation],
[perftools_cv_sized_deallocation_result],
[AC_LANG_PUSH(C++)
OLD_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fsized-deallocation"
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <new>
#include <stddef.h>]],
[[static void (* volatile ptr)(void *, size_t) = ::operator delete; (*ptr)(0, 256);]])],
perftools_cv_sized_deallocation_result=yes,
perftools_cv_sized_deallocation_result=no)
CXXFLAGS="$OLD_CXXFLAGS"
AC_LANG_POP(C++)])
AM_CONDITIONAL(HAVE_SIZED_DEALLOCATION,
test "$perftools_cv_sized_deallocation_result" = yes)
AC_CACHE_CHECK([if C++ compiler supports std::align_val_t without options],
[perftools_cv_have_align_val_t],
[AC_LANG_PUSH(C++)
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <new>]],
[[(::operator delete)((::operator new)(256, std::align_val_t(16)), std::align_val_t(16))]])],
perftools_cv_have_align_val_t=yes,
perftools_cv_have_align_val_t=no)
AC_LANG_POP(C++)])
AC_CACHE_CHECK([if C++ compiler supports -faligned-new],
[perftools_cv_have_f_aligned_new],
[AC_LANG_PUSH(C++)
OLD_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -faligned-new"
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <new>]],
[[(::operator delete)((::operator new)(256, std::align_val_t(16)), std::align_val_t(16))]])],
perftools_cv_have_f_aligned_new=yes,
perftools_cv_have_f_aligned_new=no)
CXXFLAGS="$OLD_CXXFLAGS"
AC_LANG_POP(C++)])
AM_CONDITIONAL(HAVE_F_ALIGNED_NEW,
test "$perftools_cv_have_f_aligned_new" = yes)
AS_IF([test "$perftools_cv_have_align_val_t" = yes || test "$perftools_cv_have_f_aligned_new" = yes],
[AC_DEFINE([ENABLE_ALIGNED_NEW_DELETE], 1, [Build new/delete operators for overaligned types])
AC_MSG_NOTICE([Will build new/delete operators for overaligned types])],
AC_MSG_NOTICE([Will not build new/delete operators for overaligned types]))
if test "$perftools_cv_have_align_val_t" = yes || test "$perftools_cv_have_f_aligned_new" = yes; then
AC_SUBST(ac_cv_have_std_align_val_t, 1) # gperftools/tcmalloc.h and windows/gperftools/tcmalloc.h need this
else
AC_SUBST(ac_cv_have_std_align_val_t, 0)
fi
AC_CACHE_CHECK([if target has _Unwind_Backtrace],
[perftools_cv_have_unwind_backtrace],
[AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#include <unwind.h>]],
[[&_Unwind_Backtrace]])],
[perftools_cv_have_unwind_backtrace=yes],
[perftools_cv_have_unwind_backtrace=no])
AC_LANG_POP(C++)])
AS_IF([test "x$perftools_cv_have_unwind_backtrace" = xyes],
[AC_DEFINE(HAVE_UNWIND_BACKTRACE, 1, [Whether <unwind.h> contains _Unwind_Backtrace])])
AS_IF([test "x$enable_backtrace" = xyes],
[default_emergency_malloc=yes],
[default_emergency_malloc=no])
AS_IF([test "x$will_use_libunwind" = xyes],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __arm__])],
[default_emergency_malloc=yes])])
AC_ARG_ENABLE([emergency-malloc],
[AS_HELP_STRING([--enable-emergency-malloc],
[build emergency malloc feature])],
[enable_emergency_malloc="$enableval"],
[enable_emergency_malloc="$default_emergency_malloc"])
AM_CONDITIONAL(BUILD_EMERGENCY_MALLOC, [test "x$enable_emergency_malloc" = xyes])
# Defines PRIuS
AC_COMPILER_CHARACTERISTICS
# Also make sure we get standard PRI... definitions, even with glibc.
# We have to use AH_VERBATIM because we need the #ifdef guard (gcc buglet)
AH_VERBATIM([__STDC_FORMAT_MACROS],
[/* C99 says: define this to get the PRI... macros from stdint.h */
#ifndef __STDC_FORMAT_MACROS
# define __STDC_FORMAT_MACROS 1
#endif])
# Check if __builtin_stack_pointer() is available (for elfcore.h)
AC_MSG_CHECKING([for __builtin_stack_pointer()])
AC_LINK_IFELSE([AC_LANG_PROGRAM(, [void *sp = __builtin_stack_pointer()])],
[AC_DEFINE(HAVE_BUILTIN_STACK_POINTER, 1,
Define to 1 if compiler supports __builtin_stack_pointer)
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# Check if __environ is available (for GetenvBeforeMain)
AC_MSG_CHECKING([for __environ])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>],
[char **env = __environ])],
[AC_DEFINE(HAVE___ENVIRON, 1,
[Define to 1 if compiler supports __environ])
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# If we support __thread, that can speed up tcmalloc a bit.
# Note, however, that our code tickles a bug in gcc < 4.1.2
# involving TLS and -fPIC (which our libraries will use) on x86:
# http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#
# And mingw also does compile __thread but resultant code actually
# fails to work correctly at least in some not so ancient version:
# http://mingw-users.1079350.n2.nabble.com/gcc-4-4-multi-threaded-exception-handling-amp-thread-specifier-not-working-td3440749.html
#
# Also it was reported that earlier gcc versions for mips compile
# __thread but it doesn't really work
AC_MSG_CHECKING([for __thread])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#if defined(__GNUC__) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#elif defined(__MINGW32__)
#error mingw doesnt really support tls
#elif defined(__APPLE__)
#error OSX __thread support is known to call malloc which makes it unsafe to use from malloc replacement
#endif
], [static __thread int p = 0])],
[AC_DEFINE(HAVE_TLS, 1,
Define to 1 if compiler supports __thread)
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# Nanosleep requires extra libraries on some architectures (solaris).
# This sets NANOSLEEP_LIBS. nanosleep doesn't exist on mingw, which
# is fine for us because we don't compile libspinlock, which uses it.
if test "$need_nanosleep" = yes; then
ACX_NANOSLEEP
AC_SUBST(NANOSLEEP_LIBS)
fi
# Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty.
# If so, we replace it with our own version.
LIBSTDCXX_LA_LINKER_FLAG=
if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la
then
LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris'
fi
AC_SUBST(LIBSTDCXX_LA_LINKER_FLAG)
# We also need to check if the kernel supports __thread, which requires uname()
AC_CHECK_DECLS(uname,,, [#include <sys/utsname.h>])
# In fact, a lot of the code in this directory depends on pthreads
ACX_PTHREAD
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([whether pthread symbols are available in C++ without including pthread.h])
acx_pthread_despite_asking_for=no
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([
#include <string>
#include <vector>
],[
pthread_t th; pthread_join(th, 0);
])],[
acx_pthread_despite_asking_for=yes
AC_DEFINE(HAVE_PTHREAD_DESPITE_ASKING_FOR, 1, [defined to 1 if pthread symbols are exposed even without include pthread.h])
AC_DEFINE(HAVE_PTHREAD, 1, [])
])
AC_MSG_RESULT([$acx_pthread_despite_asking_for])
AC_LANG_RESTORE
AM_CONDITIONAL(HAVE_PTHREAD_DESPITE_ASKING_FOR, test x"$acx_pthread_despite_asking_for" = xyes)
# Find out what namespace 'normal' STL code lives in
AC_CXX_STL_NAMESPACE
# Figure out where libc has program_invocation_name
AC_PROGRAM_INVOCATION_NAME
# Make the install prefix available, to figure out where to look for pprof
AC_INSTALL_PREFIX
dnl only very recent mingw has sleep and nanosleep
case "$host" in
*-mingw*)
AC_CHECK_DECLS([sleep], [], [], [#include <unistd.h>])
AC_CHECK_DECLS([nanosleep], [], [], [#include <time.h>])
;;
esac
if test "x$enable_backtrace" = xyes; then
AC_CHECK_DECLS([backtrace], [], [], [#include <execinfo.h>])
save_LIBS=$LIBS
LIBS=$UNWIND_LIBS
AC_SEARCH_LIBS([backtrace], [execinfo])
UNWIND_LIBS=$LIBS
LIBS=$save_LIBS
fi
# For windows, this has a non-trivial value (__declspec(export)), but any
# system that uses configure wants this to be the empty string.
AC_DEFINE(PERFTOOLS_DLL_DECL,,
[Always the empty-string on non-windows systems.
On windows, should be "__declspec(dllexport)".
This way, when we compile the dll, we export our functions/classes.
It's safe to define this here because config.h is only used
internally, to compile the DLL, and every DLL source file
#includes "config.h" before anything else.])
# In theory, config.h files shouldn't need a header guard, but we do,
# because we (maybe) #include windows/mingw.h from within config.h,
# and it #includes other .h files. These all have header guards, so
# the end result is if config.h is #included twice, its #undefs get
# evaluated twice, but all the ones in mingw.h/etc only get evaluated
# once, potentially causing trouble. c.f.
# http://code.google.com/p/gperftools/issues/detail?id=246
AH_TOP([
#ifndef GPERFTOOLS_CONFIG_H_
#define GPERFTOOLS_CONFIG_H_
])
AH_VERBATIM([PTHREADS_CRASHES_IF_RUN_TOO_EARLY],
[/* Mark the systems where we know it's bad if pthreads runs too
early before main (before threads are initialized, presumably). */
#ifdef __FreeBSD__
#define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1
#endif])
# MinGW uses autoconf, but also needs the windows shim routines
# (since it doesn't have its own support for, say, pthreads).
# This requires us to #include a special header file, and also to
# link in some windows versions of .o's instead of the unix versions.
#
# Also, manually mark systems where we have to be careful how early
# we run pthreads. TODO(csilvers): turn this into an autoconf check.
AH_BOTTOM([
#ifdef __MINGW32__
#include "windows/mingw.h"
#endif
#endif /* #ifndef GPERFTOOLS_CONFIG_H_ */
])
AM_CONDITIONAL(MINGW, expr $host : '.*-mingw' >/dev/null 2>&1)
AM_CONDITIONAL(OSX, expr $host : '.*-apple-darwin.*' >/dev/null 2>&1)
# Export the --enable flags we set above. We do this at the end so
# other configure rules can enable or disable targets based on what
# they find.
AM_CONDITIONAL(WITH_CPU_PROFILER, test "$enable_cpu_profiler" = yes)
AM_CONDITIONAL(WITH_HEAP_PROFILER, test "$enable_heap_profiler" = yes)
AM_CONDITIONAL(WITH_HEAP_CHECKER, test "$enable_heap_checker" = yes)
AM_CONDITIONAL(WITH_DEBUGALLOC, test "$enable_debugalloc" = yes)
# We make tcmalloc.so if either heap-profiler or heap-checker is asked for.
AM_CONDITIONAL(WITH_HEAP_PROFILER_OR_CHECKER,
test "$enable_heap_profiler" = yes -o \
"$enable_heap_checker" = yes)
# If we don't use any profilers, we don't need stack traces (or pprof)
AM_CONDITIONAL(WITH_STACK_TRACE, test "$enable_cpu_profiler" = yes -o \
"$enable_heap_profiler" = yes -o \
"$enable_heap_checker" = yes)
have_linux_sigev_thread_id=no
AC_MSG_CHECKING([for Linux SIGEV_THREAD_ID])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <signal.h>
#include <time.h>]],
[[return SIGEV_THREAD_ID || CLOCK_THREAD_CPUTIME_ID || __linux;]])],
[AC_DEFINE(HAVE_LINUX_SIGEV_THREAD_ID, 1,
[Define if this is Linux that has SIGEV_THREAD_ID])
have_linux_sigev_thread_id=yes
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
# Disable large allocation report by default.
AC_ARG_ENABLE([large-alloc-report],
[AS_HELP_STRING([--enable-large-alloc-report],
[report very large allocations to stderr])],
[enable_large_alloc_report="$enableval"],
[enable_large_alloc_report=no])
AS_IF([test "x$enable_large_alloc_report" = xyes],
[AC_DEFINE([ENABLE_LARGE_ALLOC_REPORT], 1, [report large allocation])])
# Write generated configuration file
AC_CONFIG_FILES([Makefile
src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h])
AC_OUTPUT
AS_IF([test "$x86_no_fp_by_default" = yes && test "x$enable_frame_pointers" != xyes && test "x$UNWIND_LIBS" = x && test "x$enable_minimal" != xyes],
[AS_IF([test "x$perftools_cv_have_unwind_backtrace" = xyes],
[AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace capturing via libgcc. Expect crashy cpu profiler.])],
[AS_IF([test "x$enable_backtrace" = xyes],
[AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace(). Expect crashy cpu profiler.])],
[AC_MSG_FAILURE([No frame pointers and no libunwind. The compilation will fail])])])])
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