Changeset 70936 in vbox for trunk/src/VBox/Additions/x11

Timestamp:

Feb 9, 2018 3:55:18 PM (7 years ago)

Author:

vboxsync

Message:

Additions/linux: support producing builds which work with glibc 2.3.
bugref:9112: tools: update i386 Linux Additions build tool
Add an option - VBOX_WITH_OLD_GLIBC_SUPPORT - for producing Linux Additions
builds which work with glibc 2.3, by not referencing symbols which were
introduced later, including improved versions of APIs supported in glibc 2.3,
by not using GNU_HASH tags and by not using the stack protector.

Location:

trunk/src/VBox/Additions/x11/VBoxClient

Files:

• Makefile.kmk (modified) (1 diff)
• chk_stubs.c (added)

trunk/src/VBox/Additions/x11/VBoxClient/Makefile.kmk

@@ -68 +68 @@
         supc++ \
         gcc_eh
+ifdef VBOX_WITH_OLD_GLIBC_SUPPORT
+ # This has to be in LIBS, so as to be linked in after supc++ and gcc_eh, which
+ # depend on the symbols it provides.  Static supc++ and gcc_eh on at least
+ # Ubuntu 17.04 contain references to __sprintf_chk and __stack_chk_fail.
+ # Furthermore, they contain references to memcpy, which needs to be resolved
+ # to memcpy@GLIBC_2.2.5, which we solve in a not-very-satisfactory way with a
+ # wrapper.
+ ifeq ($(KBUILD_TARGET),linux)
+VBoxClient_LIBS    += \
+        $(PATH_ROOT)/src/VBox/Additions/x11/VBoxClient/chk_stubs.c
+VBoxClient_LDFLAGS.amd64 += \
+        -Wl,--wrap=memcpy
+ endif
+endif
+
 ifdef VBOX_X11_SEAMLESS_GUEST
  VBoxClient_DEFS += SEAMLESS_GUEST DYNAMIC_RESIZE