DWARF 5 support: Handle line table and file indexes

[deliverable/binutils-gdb.git] / gdb / README

diff --git a/gdb/README b/gdb/README
index a1798e431f5c4657d637f7cc73dd47f05a57c940..8883a8a09e3dd3079533514cd639729dfe201428 100644 (file)
--- a/gdb/README
+++ b/gdb/README
@@ -439,11 +439,12 @@ more obscure GDB `configure' options are not listed here.
 
 `--with-system-readline'
      Use the readline library installed on the host, rather than the
-     library supplied as part of GDB tarball.
+     library supplied as part of GDB.  Readline 7 or newer is required;
+     this is enforced by the build system.
 
 `--with-system-zlib
      Use the zlib library installed on the host, rather than the
-     library supplied as part of GDB tarball.
+     library supplied as part of GDB.
 
 `--with-expat'
      Build GDB with Expat, a library for XML parsing.  (Done by
@@ -538,6 +539,19 @@ more obscure GDB `configure' options are not listed here.
      the compiler, which will fail the compilation if the compiler
      outputs any warning messages.
 
+`--enable-ubsan'
+     Enable the GCC undefined behavior sanitizer.  By default this is
+     disabled in GDB releases, but enabled when building from git.
+     The undefined behavior sanitizer checks for C++ undefined
+     behavior.  It has a performance cost, so if you are looking at
+     GDB's performance, you should disable it.
+
+`--enable-unit-tests[=yes|no]'
+     Enable (i.e., include) support for unit tests when compiling GDB
+     and GDBServer.  Note that if this option is not passed, GDB will
+     have selftests if it is a development build, and will *not* have
+     selftests if it is a non-development build.
+
 `configure' accepts other options, for compatibility with configuring
 other GNU tools recursively.