Move GDB build into a common backend function

... needed to create a common runtime test for an incompatible change
in glibc API.

Signed-off-by: Alexey Neyman <stilor@att.net>

3 files changed, 48 insertions, 76 deletions

diff --git a/config/debug/gdb.in b/config/debug/gdb.in
index f5f7578b..32170c1b 100644
--- a/config/debug/gdb.in
+++ b/config/debug/gdb.in
@@ -4,7 +4,6 @@
 
 source "config/debug/gdb.in.cross"
 source "config/debug/gdb.in.native"
-source "config/debug/gdb.in.gdbserver"
 
 config GDB_HAS_PKGVERSION_BUGURL
     bool
@@ -32,3 +31,9 @@ config GDB_DEP_CXX11
     def_bool y
     depends on !CONFIGURE_has_cxx11
     select GDB_REQUIRE_older_than_8_0
+
+config GDB_HAS_IPA_LIB
+    bool
+    depends on GDB_7_2_or_later
+    default y
+
diff --git a/config/debug/gdb.in.gdbserver b/config/debug/gdb.in.gdbserver
deleted file mode 100644
index d7f1bb81..00000000
--- a/config/debug/gdb.in.gdbserver
+++ /dev/null
@@ -1,71 +0,0 @@
-# Menu for the native gdbserver
-
-config GDB_GDBSERVER
-    bool
-    prompt "gdbserver"
-    default y
-    depends on ! BARE_METAL
-    select LIBC_UCLIBC_WCHAR if LIBC_UCLIBC && GDB_8_0_or_later
-    help
-      Build and install a gdbserver for the target, to run on the target.
-
-if GDB_GDBSERVER
-
-config GDB_GDBSERVER_HAS_IPA_LIB
-    bool
-    depends on GDB_7_2_or_later
-    default y
-
-config GDB_GDBSERVER_STATIC
-    bool
-    prompt "Build a static gdbserver"
-    depends on EXPERIMENTAL
-    help
-      In case you have trouble with dynamic loading of shared libraries,
-      you will find that a static gdbserver comes in handy.
-
-      However, it has been noticed at least on x86 that enabling this
-      option produces an invalid gdbserver binary. It is linked with
-      "-static -Wl,--dynamic-list=..." which
-      # (a) requests invalid program interpreter
-      # (b) crashes glibc/uClibc-ng and does not work with musl
-      # See https://sourceware.org/ml/libc-alpha/2017-03/msg00267.html
-
-      It is possible it would work with other architectures, hence it is
-      not completely removed. Use with care and report to the mailing list
-      if the resulting gdbserver works.
-
-      For further details, see:
-      https://sourceware.org/bugzilla/show_bug.cgi?id=19617
-      https://sourceware.org/bugzilla/show_bug.cgi?id=21086
-
-config GDB_GDBSERVER_STATIC_LIBSTDCXX
-    bool
-    prompt "Link against static libstdc+++"
-    depends on !GDB_GDBSERVER_STATIC
-    default n
-    help
-      Say 'y' if you do not want gdbserver to require libstdc++.so on the
-      target.
-
-config GDB_GDBSERVER_BUILD_IPA_LIB
-    bool
-    prompt "Build the IPA library"
-    depends on GDB_GDBSERVER_HAS_IPA_LIB && !GDB_GDBSERVER_STATIC
-    help
-      gdbserver >= 7.2 comes with an optional library to use tracepoints,
-      the In Process Agent (IPA) library, libinproctrace.so.
-      
-      Say 'y' if you indend to use tracepoints when debugging your
-      programs with gdbserver.
-      
-      Note: Currently, building this library is not possible when the
-            gdbserver is built statically. This is a limitation in
-            crosstool-NG, so do not bug upstream about it...
-
-endif # GDB_GDBSERVER
-
-if BARE_METAL
-comment "In bare-metal, you'll need to   "
-comment "provide your own gdbserver stub."
-endif # BARE_METAL
diff --git a/config/debug/gdb.in.native b/config/debug/gdb.in.native
index 48c85756..1ee8ad12 100644
--- a/config/debug/gdb.in.native
+++ b/config/debug/gdb.in.native
@@ -1,4 +1,4 @@
-# Menu for the native GDB
+# Menu for the native GDB binaries (GDB itself and gdbserver)
 
 config GDB_NATIVE
     bool
@@ -12,11 +12,35 @@ config GDB_NATIVE
     help
       Build and install a native gdb for the target, to run on the target.
 
-if GDB_NATIVE
+config GDB_GDBSERVER
+    bool
+    prompt "gdbserver"
+    default y
+    depends on ! BARE_METAL
+    select LIBC_UCLIBC_WCHAR if LIBC_UCLIBC && GDB_8_0_or_later
+    help
+      Build and install a gdbserver for the target, to run on the target.
+
+if GDB_NATIVE || GDB_GDBSERVER
+
+config GDB_NATIVE_BUILD_IPA_LIB
+    bool
+    prompt "Build the IPA library"
+    depends on GDB_HAS_IPA_LIB && !GDB_NATIVE_STATIC
+    help
+      gdbserver >= 7.2 comes with an optional library to use tracepoints,
+      the In Process Agent (IPA) library, libinproctrace.so.
+      
+      Say 'y' if you intend to use tracepoints when debugging your
+      programs with gdbserver.
+      
+      Note: Currently, building this library is not possible when the
+            gdbserver is built statically. This is a limitation in
+            crosstool-NG, so do not bug upstream about it...
 
 config GDB_NATIVE_STATIC
     bool
-    prompt "Build a static native gdb"
+    prompt "Build a static gdb binaries"
     depends on EXPERIMENTAL
     help
       In case you have trouble with dynamic loading of shared libraries,
@@ -31,10 +55,24 @@ config GDB_NATIVE_STATIC
 
       It is possible it would work with other architectures, hence it is
       not completely removed. Use with care and report to the mailing list
-      if the resulting gdbserver works.
+      if the resulting binaries work.
 
       For further details, see:
       https://sourceware.org/bugzilla/show_bug.cgi?id=19617
       https://sourceware.org/bugzilla/show_bug.cgi?id=21086
 
+config GDB_NATIVE_STATIC_LIBSTDCXX
+    bool
+    prompt "Link against static libstdc+++"
+    depends on !GDB_NATIVE_STATIC
+    default n
+    help
+      Say 'y' if you do not want gdbserver to require libstdc++.so on the
+      target.
+
 endif # GDB_NATIVE
+
+if BARE_METAL
+comment "In bare-metal, you'll need to   "
+comment "provide your own gdbserver stub."
+endif # BARE_METAL