This commit adds support for gcc 5.1 in Buildroot. In terms of gcc
patches, compared to gcc 4.9.x:
* Kept as is, sometimes after minor adjusments:
100-uclibc-conf.patch
301-missing-execinfo_h.patch
810-arm-softfloat-libgcc.patch
830-arm_unbreak_armv4t.patch
840-microblaze-enable-dwarf-eh-support.patch
850-libstdcxx-uclibc-c99.patch
860-cilk-wchar.patch
* Dropped:
110-pr64896.patch
111-pr65730.patch
* Split in multiple parts:
900-musl-support.patch
The patches from Crosstool-NG for muls support are used instead of
one single patch.
* Renamed:
910-gcc-poison-system-directories.patch to
200-gcc-poison-system-directories.patch
920-libgcc-remove-unistd-header.patch to
201-libgcc-remove-unistd-header.patch
Since the 9xx part of the series is now used by the various musl
related patches.
We have tested the following configurations, with a minimal Busybox
system:
* ARM, uClibc-ng
* ARM, glibc
* ARM, musl
* x86, uClibc-ng and uClibc 0.9.33.2
* x86, glibc
* x86, musl
All of the configurations built fine. All the configurations boot fine
in Qemu, except x86/uClibc (either ng or 0.9.33.2), it segfaults when
running init:
devtmpfs: mounted
Freeing unused kernel memory: 300K (c1389000 - c13d4000)
init[1]: segfault at 0 ip b77708c1 sp bfa9bb0c error 4 in ld-uClibc-0.9.33.2.so[b776c000+6000]
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
We'll give some time for the uClibc developers to fix the problem
before taking other measures in Buildroot to exclude gcc 5.1 from a
x86/uClibc configuration.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
