diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2019-03-05 09:16:29 -0800 |
|---|---|---|
| committer | Jérôme Glisse <jglisse@redhat.com> | 2019-03-21 14:49:08 -0400 |
| commit | 2545cfeba22555dd77807cb764ce5706913afc23 (patch) | |
| tree | a1a328acda06f470eb390d8423b8711b63da3a93 | |
| parent | 48ef18f50f2d76dadf94f788d14a71a54e595b88 (diff) | |
ARC: unaligned: relax the check for gcc supporting -mno-unaligned-access
Without bleeding edge gcc, kernel builds were tripping everywhere.
So current gcc will generate unaligned code despite
!CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS but that is something we have to
live with.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
| -rw-r--r-- | arch/arc/kernel/setup.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 15da43d2e416..a9c88b7e9182 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -314,18 +314,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) IS_AVAIL1(cpu->extn_mpy.ver, mpy_opt), IS_AVAIL1(cpu->isa.div_rem, "div_rem ")); - -#if defined(__ARC_UNALIGNED__) && !defined(CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS) - /* - * gcc 7.3.1 (GNU 2018.03) onwards generate unaligned access by default - * but -mno-unaligned-access to disable that didn't work until gcc 8.2.1 - * (GNU 2019.03). So landing here implies the interim period, when - * despite Kconfig being off, gcc is generating unaligned accesses which - * could bomb later on. So better to disallow such broken builds - */ - BUILD_BUG_ON_MSG(1, "gcc doesn't support -mno-unaligned-access"); -#endif - if (cpu->bpu.ver) { n += scnprintf(buf + n, len - n, "BPU\t\t: %s%s match, cache:%d, Predict Table:%d Return stk: %d", |