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authorJohn Baldwin <jhb@FreeBSD.org>2015-02-17 19:15:45 -0500
committerJohn Baldwin <jhb@FreeBSD.org>2015-03-13 14:08:15 -0400
commit25268153a182eef28d31ed2bc03ab7c6c0ab40e3 (patch)
treec50a9b2391d7d6eb223ec9c49bc4920615b3b4a6 /gdb/configure.ac
parent773eacf5b0362c755ac47cb66d15d07558d9ce20 (diff)
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Use kinfo_getvmmap on FreeBSD to enumerate memory regions.
Use kinfo_getvmmap from libutil on FreeBSD to enumerate memory regions in a running process instead of /proc/<pid>/map. FreeBSD systems do not mount procfs by default, but kinfo_getvmmap uses a sysctl that is always available. Skip memory regions for devices as well as regions an application has requested to not be dumped via the MAP_NOCORE flag to mmap or MADV_NOCORE advice to madvise. gdb/ChangeLog: * configure.ac: AC_CHECK_LIB(util, kinfo_getvmmap). * configure: Regenerate. * config.in: Regenerate. * fbsd-nat.c [!HAVE_KINFO_GETVMMAP] (fbsd_read_mapping): Don't define. (fbsd_find_memory_regions): Use kinfo_getvmmap to enumerate memory regions if present.
Diffstat (limited to 'gdb/configure.ac')
-rw-r--r--gdb/configure.ac5
1 files changed, 5 insertions, 0 deletions
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 4a0b6a3..38747e8 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -537,6 +537,11 @@ AM_ZLIB
# On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
+# On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
+AC_SEARCH_LIBS(kinfo_getvmmap, util,
+ [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
+ [Define to 1 if your system has the kinfo_getvmmap function. ])])
+
AM_ICONV
# GDB may fork/exec the iconv program to get the list of supported character