## 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([2.69]) AC_INIT([gperftools],[2.13],[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=9:14:5 PROFILER_SO_VERSION=5:9:5 TCMALLOC_AND_PROFILER_SO_VERSION=10:9:6 AC_SUBST(TCMALLOC_SO_VERSION) AC_SUBST(PROFILER_SO_VERSION) AC_SUBST(TCMALLOC_AND_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 foreign]) 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]]*\(.*\)$'` AC_SUBST(TC_VERSION_MAJOR) AC_SUBST(TC_VERSION_MINOR) AC_SUBST(TC_VERSION_PATCH) AC_SUBST(PACKAGE_STRING) # The user can choose not to compile in the heap-profiler, the # heap-checker, or the cpu-profiler. There's also the possibility # for a 'fully minimal' compile, which leaves out the stacktrace # code as well. By default, we include all of these that the # target system supports. default_enable_cpu_profiler=yes default_enable_heap_profiler=yes # heap checker is Linux-only. default_enable_heap_checker=no heap_checker_supported=no default_enable_debugalloc=yes default_enable_minimal=no default_tcmalloc_alignment=16 heap_checker_is_default=no need_nanosleep=yes # Used later, to decide if to run ACX_NANOSLEEP case "$host" in *-mingw*) default_enable_minimal=yes; default_enable_debugalloc=no; need_nanosleep=no;; *-cygwin*) default_enable_cpu_profiler=no;; *-linux*) default_enable_heap_checker=yes; heap_checker_supported=yes;; esac # Currently only backtrace works on s390 and OSX. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [ #if !defined(__s390__) && !defined(__APPLE__) #error not s390 and not osx #endif return 1 ])], [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="$default_enable_heap_checker"; heap_checker_is_default=yes]) AC_ARG_ENABLE([debugalloc], [AS_HELP_STRING([--disable-debugalloc], [do not build versions of libs with debugalloc])], [], [enable_debugalloc="$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="$default_enable_backtrace"]) AC_ARG_ENABLE([libgcc-unwinder-by-default], [AS_HELP_STRING([--enable-libgcc-unwinder-by-default], [prefer libgcc's _Unwind_Backtrace as default stacktrace capturing method])], [enable_libgcc_by_default=yes], [enable_libgcc_by_default=no]) AS_IF([test "x$enable_libgcc_by_default" = xyes], [AC_DEFINE(PREFER_LIBGCC_UNWINDER, 1, [if libgcc stacktrace method should be default])]) AC_ARG_ENABLE([libunwind], [AS_HELP_STRING([--enable-libunwind], [enable libunwind linking])], [], [enable_libunwind="$default_enable_libunwind"]) AC_ARG_WITH([tcmalloc-pagesize], [AS_HELP_STRING([--with-tcmalloc-pagesize], [Set the tcmalloc internal page size to 4K, 8K, 16K, 32K, 64K, 128K or 256K])], [], [with_tcmalloc_pagesize=$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 4) AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 12);; 8) #Default tcmalloc page size. ;; 16) AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 14);; 32) AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 15);; 64) AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 16);; 128) AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 17);; 256) AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 18, [Define internal page size for tcmalloc as number of left bitshift]);; *) 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([${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment.]) esac AS_IF([test "x$enable_heap_checker" = xyes], [AS_IF([test "x$heap_checker_supported" = xno], [AC_MSG_NOTICE([your system isn't Linux, and I won't build heap checker despite your request])] enable_heap_checker=no)]) dnl Heap checker is (and has always been) Linux-only, and also now dnl depends on clone support in libc. Most Linux libc's do ship clone() dnl (includes glibc, musl and even bionic), but not all. So we check. AS_IF([test "x$enable_heap_checker" = xyes], [AC_MSG_CHECKING([clone() support]) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif #include static int fn(void *dummy) { return 0; } ]],[[ char stk[16]; return clone(fn, stk, CLONE_VM|CLONE_FS|CLONE_FILES, 0); ]])], [AC_MSG_RESULT([yes])], [ dnl clone not found AC_MSG_RESULT([no]) enable_heap_checker=no AS_IF([test "x$heap_checker_is_default" = xyes], [AC_MSG_NOTICE([your Linux system won't have heap checker built due to missing clone() support])], [AC_MSG_WARN([you requested heap checker built, but your libc doesn't have clone() support])]) ])]) # Checks for programs. AC_PROG_CXX AC_LANG([C++]) AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc 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 $OBJCOPY supports -W], gpt_cv_objcopy_weaken, [dnl AC_LINK_IFELSE([AC_LANG_PROGRAM([void foo() {}])], [dnl AS_IF(["$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 $gpt_cv_objcopy_weaken = yes) LT_INIT # Lets try enable frame pointers to enable simpler stacktrace # capturing methods, but keep performace for critical bits with # -momit-leaf-frame-pointer. However, we should be conservative so # that we don't disable leaf frame pointers on whatever architectures # that have them enabled by default. AC_CACHE_CHECK( [compiler and target supports -fno-omit-frame-pointer -momit-leaf-frame-pointer], [ac_cv_frame_pointer_cflags], [OLD_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -fno-omit-frame-pointer -momit-leaf-frame-pointer" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( #if !(__i386__ || __x86_64__ || __riscv || __aarch64__) #error unsupported arch #endif )], [ac_cv_frame_pointer_cflags=yes], [ac_cv_frame_pointer_cflags=no]) CXXFLAGS="$OLD_CXXFLAGS"]) AM_CONDITIONAL(ENABLE_FP_FLAGS, [test "x$ac_cv_frame_pointer_cflags" = "xyes"]) AX_C___ATTRIBUTE__ AC_MSG_CHECKING(for __attribute__((aligned(N))) on functions) AC_CACHE_VAL(ac_cv___attribute__aligned_fn, [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include void foo(void) __attribute__((aligned(128))); void foo(void) { exit(1); }]], [[]])],[ac_cv___attribute__aligned_fn=yes],[ac_cv___attribute__aligned_fn=no ])]) if test "$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($ac_cv___attribute__aligned_fn) # TODO(csilvers): we could remove a lot when WITH_CPU_PROFILER etc is "no". AC_CHECK_TYPES([struct mallinfo],,, [#include ]) AC_CHECK_TYPES([Elf32_Versym],,, [#include ]) # for vdso_support.h AC_CHECK_FUNCS(sbrk) # for tcmalloc to get memory AC_CHECK_FUNCS(__sbrk) # for tcmalloc to get memory AC_CHECK_FUNCS(geteuid) # for turning off services when run as root AC_CHECK_FUNCS(fork) # for the pthread_atfork setup AC_CHECK_HEADERS(features.h) # for vdso_support.h, __GLIBC__ macros AC_CHECK_HEADERS(malloc.h) # some systems define stuff there, others not AC_CHECK_HEADERS(glob.h) # for heap-profile-table (cleaning up profiles) AC_CHECK_HEADERS(execinfo.h) # for stacktrace? and heapchecker_unittest AC_CHECK_HEADERS(unwind.h) # for stacktrace AC_CHECK_HEADERS(sched.h) # for being nice in our spinlock code AC_CHECK_HEADERS(sys/syscall.h) AC_CHECK_HEADERS(sys/socket.h) # optional; for forking out to symbolizer AC_CHECK_HEADERS(sys/wait.h) # optional; for forking out to symbolizer AC_CHECK_HEADERS(poll.h) # optional; for forking out to symbolizer AC_CHECK_HEADERS(fcntl.h) # for tcmalloc_unittest AC_CHECK_HEADERS(grp.h) # for heapchecker_unittest AC_CHECK_HEADERS(pwd.h) # for heapchecker_unittest AC_CHECK_HEADERS(sys/resource.h) # for memalign_unittest.cc AC_CHECK_HEADERS(sys/cdefs.h) # Where glibc defines __THROW # We also need /, but we get those from # AC_PC_FROM_UCONTEXT, below. # check for socketpair, some system, such as QNX, need link in an socket library to use it AC_SEARCH_LIBS([socketpair], [socket]) # We override a lot of memory allocation routines, not all of which are # standard. For those the system doesn't declare, we'll declare ourselves. AC_CHECK_DECLS([cfree, posix_memalign, memalign, valloc, pvalloc],,, [#define _XOPEN_SOURCE 600 #define _QNX_SOURCE 1 #include #include ]) if test "$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 hardcode HAVE_MMAP to 1. There are no interesting systems anymore # without functional mmap. And our windows (except mingw) builds # aren't using autoconf. So we keep HAVE_MMAP define, but only to # distingush windows and rest. case "$host" in *-mingw*) default_emergency_malloc=no;; *) default_emergency_malloc=yes AC_DEFINE(HAVE_MMAP, 1, [Define to 1 if you have a working `mmap' system call.]) esac # We want to access the "PC" (Program Counter) register from a struct # ucontext. Every system has its own way of doing that. We try all the # possibilities we know about. Note REG_PC should come first (REG_RIP # is also defined on solaris, but does the wrong thing). But don't # bother if we're not doing cpu-profiling. # [*] means that we've not actually tested one of these systems if test "$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 AC_DEFINE([USE_LIBUNWIND], [1], [libunwind.h was found and is working]) will_use_libunwind=yes])]) fi AC_SUBST(UNWIND_LIBS) AC_ARG_ENABLE(frame_pointers, AS_HELP_STRING([--enable-frame-pointers], [Add -fno-omit-frame-pointer to compile flags]), , enable_frame_pointers=no) AM_CONDITIONAL(ENABLE_FRAME_POINTERS, test "$enable_frame_pointers" = yes) # See if the compiler supports -Wno-unused-result. # Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling # __attribute__((warn_unused_result)) for things like write(), # which we don't care about. AC_CACHE_CHECK([if the compiler supports -Wno-unused-result], perftools_cv_w_no_unused_result, [OLD_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -Wno-error -Wunused-result" # gcc doesn't warn about unknown flags unless it's # also warning for some other purpose, hence the # divide-by-0. (We use -Wno-error to make sure the # divide-by-0 doesn't cause this test to fail!) # # Also gcc is giving only warning for unknown flags of # -Wno-XXX form. So in order to detect support we're # using -Wunused-result which will cause gcc to give # error which we can detect. AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, return 1/0)], perftools_cv_w_no_unused_result=yes, perftools_cv_w_no_unused_result=no) CXXFLAGS="$OLD_CXXFLAGS"]) 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], [OLD_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -fsized-deallocation" AC_LINK_IFELSE([AC_LANG_PROGRAM( [[#include #include ]], [[static void (* volatile ptr)(void *, size_t) = ::operator delete; 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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_COMPILE_IFELSE([AC_LANG_PROGRAM( [[#include #if defined(__APPLE__) || defined(__FreeBSD__) #error OSX and FreeBSD _Unwind_Backtrace recurses back to malloc #endif ]], [[&_Unwind_Backtrace]])], [perftools_cv_have_unwind_backtrace=yes], [perftools_cv_have_unwind_backtrace=no])]) AS_IF([test "x$perftools_cv_have_unwind_backtrace" = xyes], [AC_DEFINE(HAVE_UNWIND_BACKTRACE, 1, [Whether contains _Unwind_Backtrace])]) AS_IF([test "x$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]) # 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 __environ is available (for GetenvBeforeMain) AC_MSG_CHECKING([for __environ]) AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ], [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 #elif defined(_AIX) #error AIX thread support is known to call malloc which makes it unsafe to use from malloc replacement #elif defined(__QNXNTO__) #error QNX 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$(top_srcdir)/src/solaris' fi AC_SUBST(LIBSTDCXX_LA_LINKER_FLAG) # In fact, a lot of the code in this directory depends on pthreads AX_PTHREAD # Figure out where libc has program_invocation_name AC_PROGRAM_INVOCATION_NAME # Make the install prefix available, to figure out where to look for pprof AC_INSTALL_PREFIX dnl only very recent mingw has sleep and nanosleep case "$host" in *-mingw*) AC_CHECK_DECLS([sleep], [], [], [#include ]) AC_CHECK_DECLS([nanosleep], [], [], [#include ]) ;; esac if test "x$enable_backtrace" = xyes; then AC_CHECK_DECLS([backtrace], [], [], [#include ]) save_LIBS=$LIBS LIBS=$UNWIND_LIBS AC_SEARCH_LIBS([backtrace], [execinfo]) UNWIND_LIBS=$LIBS LIBS=$save_LIBS fi STACKTRACE_UNITTEST_LIBS= AS_IF([test "x$ac_cv_header_execinfo_h" = xyes], AS_IF([test "x$enable_cpu_profiler" = xyes -o "x$enable_heap_profiler" = xyes -o "x$enable_heap_checker" = xyes], [AC_CHECK_DECLS([backtrace_symbols], [], [], [#include ]) save_LIBS=$LIBS LIBS= AC_SEARCH_LIBS([backtrace_symbols], [execinfo]) STACKTRACE_UNITTEST_LIBS=$LIBS LIBS=$save_LIBS])) AC_SUBST(STACKTRACE_UNITTEST_LIBS) # 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. # https://github.com/gperftools/gperftools/issues/248 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). */ #if defined(__FreeBSD__) || defined(_AIX) #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 #include ]], [[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])]) # Enable aggressive decommit by default AC_ARG_ENABLE([aggressive-decommit-by-default], [AS_HELP_STRING([--enable-aggressive-decommit-by-default], [enable aggressive decommit by default])], [enable_aggressive_decommit_by_default="$enableval"], [enable_aggressive_decommit_by_default=no]) AS_IF([test "x$enable_aggressive_decommit_by_default" = xyes], [AC_DEFINE([ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT], 1, [enable aggressive decommit by default])]) # Write generated configuration file AC_CONFIG_FILES([Makefile src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h]) AC_OUTPUT