klibc: Add clang's -rtlib to known options

This helps in ensuring that we always link klibc apps with libgcc as
compiler-rt does not work for klibc due to missing libssp functions e.g.
__stack_chk_guard and __stack_chk_guard which it expects in libc

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Andrea Adami <andrea.adami@gmail.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/meta-initramfs/recipes-devtools/klibc/files/klcc-cross-accept-clang-options.patch b/meta-initramfs/recipes-devtools/klibc/files/klcc-cross-accept-clang-options.patch
index 56905a515..431c75e3a 100644
--- a/meta-initramfs/recipes-devtools/klibc/files/klcc-cross-accept-clang-options.patch
+++ b/meta-initramfs/recipes-devtools/klibc/files/klcc-cross-accept-clang-options.patch
@@ -5,7 +5,7 @@ Signed-off-by: Khem Raj <raj.khem@gmail.com>
 
 --- a/klcc/klcc.in
 +++ b/klcc/klcc.in
-@@ -207,6 +207,24 @@ while ( defined($a = shift(@ARGV)) ) {
+@@ -207,6 +207,27 @@ while ( defined($a = shift(@ARGV)) ) {
      } elsif ( $a =~ /^--([sysroot=])(.*)$/ ) {
         # Override gcc encoded sysroot
         push(@ccopt, $a);
@@ -27,6 +27,9 @@ Signed-off-by: Khem Raj <raj.khem@gmail.com>
 +    } elsif ( $a =~ '--unwindlib=.*' ) {
 +       # Allow clang options
 +       push(@ccopt, $a);
++    } elsif ( $a =~ '-rtlib=.*' ) {
++       # Allow clang options
++       push(@ccopt, $a);
      } else {
         die "$0: unknown option: $a\n";
      }