binutils: disallow selection of 2.27 on ARM/noMMU

binutils 2.27 triggers a segfault in elf2flt on ARM/noMMU. While Arnout
has identified a binutils 2.28 commit that can be backported on 2.27,
this commit is huge and we don't clearly understand the impact.

Since both binutils 2.26 and 2.28 are unaffected by this issue, we
simply disallow the selection of binutils 2.27 on ARM/noMMU, and default
to binutils 2.28.

Fixes:

  http://autobuild.buildroot.net/results/e14cadb290b0b86cac12c4bfb681eb6eee9e6dea/
  and lots of other similar ARM/Cortex-M4 failures

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/binutils/Config.in.host b/package/binutils/Config.in.host
index aa24fd7c8b6dd0f1deaba6f00f5a120279bd73e8..e147ef0a269f7a934441a901f9af5aa1cbe58a05 100644 (file)
--- a/package/binutils/Config.in.host
+++ b/package/binutils/Config.in.host
@@ -3,6 +3,7 @@ comment "Binutils Options"
 choice
        prompt "Binutils Version"
        default BR2_BINUTILS_VERSION_2_27_X
+       default BR2_BINUTILS_VERSION_2_28_X if (BR2_arm && !BR2_USE_MMU)
        depends on !BR2_arc
        help
          Select the version of binutils you wish to use.
@@ -12,6 +13,8 @@ config BR2_BINUTILS_VERSION_2_26_X
 
 config BR2_BINUTILS_VERSION_2_27_X
        bool "binutils 2.27"
+       # binutils 2.27 triggers a bug in elf2flt on ARM/noMMU
+       depends on !(BR2_arm && !BR2_USE_MMU)
 
 config BR2_BINUTILS_VERSION_2_28_X
        bool "binutils 2.28"