gdb: bump to 8.0.1

Add -static-libstdc++ to TARGET_LDFLAGS to avoid a hard dependency on
libstdc++, and -Wl,--gc-sections to further reduce the size on platforms
that support it.

Fixes CVE-2017-9778.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

package/devel/gdb/patches/120-sigprocmask-invalid-call.patch

@@ -25,8 +25,6 @@ gdb/ChangeLog:
  gdb/common/signals-state-save-restore.c | 2 +-
  2 files changed, 6 insertions(+), 1 deletion(-)
 
-diff --git a/gdb/common/signals-state-save-restore.c b/gdb/common/signals-state-save-restore.c
-index d11a9ae..734335c 100644
 --- a/gdb/common/signals-state-save-restore.c
 +++ b/gdb/common/signals-state-save-restore.c
 @@ -41,7 +41,7 @@ save_original_signals_state (void)
@@ -38,6 +36,3 @@ index d11a9ae..734335c 100644
    if (res == -1)
      perror_with_name (("sigprocmask"));
  
--- 
-2.6.4
-