Project

General

Profile

Bug #19386

arm_acle.h not found gcc 4.8.5 CentOS/RHEL, breaks build

Added by Dan Mick 4 months ago. Updated 4 months ago.

Status:
Resolved
Priority:
High
Assignee:
Category:
build
Target version:
-
Start date:
03/24/2017
Due date:
% Done:

0%

Source:
Development
Tags:
Backport:
Regression:
No
Severity:
2 - major
Reviewed:
Affected Versions:
ceph-qa-suite:
Release:
Needs Doc:
No

Description

The cmake detection for compiler intrinsics for CRC and CRYPTO fails for gcc 4.8.5 on aarch64; gcc accepts the -march=armv8+crc+crypto, but there are no __builtin_aarch64_crc* routines and no arm_acle.h; thus, the compile fails, because the include for arm_acle.h is conditioned on the -march support flag.

The ACLE specification says that one can test for presence of arm_acle.h with __ARM_ACLE, and indeed it is not set on this compiler, but it's also not set on gcc 5.4.0 on Ubuntu Xenial, so apparently gcc is not reliable wrt ACLE. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70974

Thus, enhance the test for CRC intrinsics to first test for the -march support but then also test for the actual symbol definition.

History

#1 Updated by Dan Mick 4 months ago

  • Subject changed from arm_acle.h not found gcc 4.5.8 CentOS/RHEL to arm_acle.h not found gcc 4.5.8 CentOS/RHEL, breaks build
  • Category set to build
  • Status changed from New to In Progress
  • Assignee set to Dan Mick
  • Priority changed from Normal to High
  • Source set to Development
  • Severity changed from 3 - minor to 2 - major

#2 Updated by Dan Mick 4 months ago

  • Description updated (diff)

#3 Updated by Dan Mick 4 months ago

  • Subject changed from arm_acle.h not found gcc 4.5.8 CentOS/RHEL, breaks build to arm_acle.h not found gcc 4.8.5 CentOS/RHEL, breaks build
  • Description updated (diff)

#4 Updated by Dan Mick 4 months ago

  • Description updated (diff)

#5 Updated by Dan Mick 4 months ago

  • Description updated (diff)

#6 Updated by Dan Mick 4 months ago

  • Status changed from In Progress to Resolved

Also available in: Atom PDF