diff options
Diffstat (limited to 'gdb/gdbserver/configure.ac')
| -rw-r--r-- | gdb/gdbserver/configure.ac | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac index 567d3ea7e81..3a36c05fc20 100644 --- a/gdb/gdbserver/configure.ac +++ b/gdb/gdbserver/configure.ac @@ -358,6 +358,29 @@ AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), [gdbsrv_cv_have_visibility_hidden=no]) CFLAGS="$saved_cflags" +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], + [gdbsrv_cv_have_personality=true], + [gdbsrv_cv_have_personality=false], + [AC_LINK_IFELSE([PERSONALITY_TEST], + [gdbsrv_cv_have_personality=true], + [gdbsrv_cv_have_personality=false])]) +if $gdbsrv_cv_have_personality +then + AC_DEFINE([HAVE_PERSONALITY], 1, + [Define if you support the personality syscall.]) +fi + IPA_DEPFILES="" extra_libraries="" |