diff options
Diffstat (limited to 'gdbsupport/common.m4')
| -rw-r--r-- | gdbsupport/common.m4 | 93 |
1 files changed, 91 insertions, 2 deletions
diff --git a/gdbsupport/common.m4 b/gdbsupport/common.m4 index 9e15940eead..68a354551a2 100644 --- a/gdbsupport/common.m4 +++ b/gdbsupport/common.m4 @@ -42,13 +42,50 @@ AC_DEFUN([GDB_AC_COMMON], [ sys/un.h sys/wait.h dnl thread_db.h wait.h dnl termios.h dnl - dlfcn.h) + dlfcn.h dnl + linux/elf.h sys/procfs.h proc_service.h) + AC_FUNC_MMAP + AC_FUNC_VFORK AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 socketpair sigaction \ - sigprocmask]) + ptrace64 sbrk setns sigaltstack sigprocmask \ + setpgid setpgrp getrusage getauxval]) + + dnl Check if we can disable the virtual address space randomization. + dnl The functionality of setarch -R. + AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>]) + define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [ + # if !HAVE_DECL_ADDR_NO_RANDOMIZE + # define ADDR_NO_RANDOMIZE 0x0040000 + # endif + /* Test the flag could be set and stays set. */ + personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE); + if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE)) + return 1])]) + AC_RUN_IFELSE([PERSONALITY_TEST], + [have_personality=true], + [have_personality=false], + [AC_LINK_IFELSE([PERSONALITY_TEST], + [have_personality=true], + [have_personality=false])]) + if $have_personality + then + AC_DEFINE([HAVE_PERSONALITY], 1, + [Define if you support the personality syscall.]) + fi AC_CHECK_DECLS([strstr]) + # ----------------------- # + # Checks for structures. # + # ----------------------- # + + AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize]) + + AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd, + [AC_DEFINE(HAVE_KINFO_GETFILE, 1, + [Define to 1 if your system has the kinfo_getfile function. ])]) + # Check for std::thread. This does not work on some platforms, like # mingw and DJGPP. AC_LANG_PUSH([C++]) @@ -90,4 +127,56 @@ AC_DEFUN([GDB_AC_COMMON], [ if test "$gdb_cv_func_sigsetjmp" = "yes"; then AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ]) fi + + AC_ARG_WITH(intel_pt, + AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]), + [], [with_intel_pt=auto]) + AC_MSG_CHECKING([whether to use intel pt]) + AC_MSG_RESULT([$with_intel_pt]) + + if test "${with_intel_pt}" = no; then + AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.]) + HAVE_LIBIPT=no + else + AC_PREPROC_IFELSE([AC_LANG_SOURCE([[ + #include <linux/perf_event.h> + #ifndef PERF_ATTR_SIZE_VER5 + # error + #endif + ]])], [perf_event=yes], [perf_event=no]) + if test "$perf_event" != yes; then + if test "$with_intel_pt" = yes; then + AC_MSG_ERROR([linux/perf_event.h missing or too old]) + else + AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.]) + fi + fi + + AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);]) + if test "$HAVE_LIBIPT" != yes; then + if test "$with_intel_pt" = yes; then + AC_MSG_ERROR([libipt is missing or unusable]) + else + AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.]) + fi + else + save_LIBS=$LIBS + LIBS="$LIBS $LIBIPT" + AC_CHECK_FUNCS(pt_insn_event) + AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [], + [#include <intel-pt.h>]) + LIBS=$save_LIBS + fi + fi + + if test "$ac_cv_header_sys_procfs_h" = yes; then + BFD_HAVE_SYS_PROCFS_TYPE(gregset_t) + BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t) + BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t) + BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t) + BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t) + BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t) + BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t) + BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t) + fi ]) |