Closed Bug 1564715 Opened 4 years ago Closed 4 years ago

Read /proc/cpuinfo when AT_HWCAP2 returns 0

Categories

(NSS :: Libraries, enhancement, P1)

Product:
NSS
Component:
Libraries
Platform:
ARM
Unspecified
Type:
enhancement

Tracking

(Not tracked)

Status:
RESOLVED FIXED

People

(Reporter: m_kato, Assigned: m_kato)

References

(Blocks 1 open bug)

Details

Attachments

(1 file)

Bug 1564715 - Read /proc/cpuinfo when AT_HWCAP2 returns 0
47 bytes, text/x-phabricator-request
Details | Review

From https://bugzilla.mozilla.org/show_bug.cgi?id=1556022#c16, although Moto G5 uses 32-bit kernel on Cortex-A53, AT_HWCAP2 doesn't return that ARM crypto extension is supported. But /proc/cpuinfo is

bogomips: 38.0 half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm aes pmull sha1 sha2 crc32

We have to read /proc/cpuinfo too to detect ARM's crypto extension. Chrome bug is https://bugs.chromium.org/p/boringssl/issues/detail?id=46

Blocks: 1555407
Assignee: nobody → m_kato
Status: NEW → ASSIGNED
Priority: -- → P1
Blocks: 1556022

https://hg.mozilla.org/projects/nss/rev/b5a53c0720d8f16efb665d9fe1ae4665488ee658

Status: ASSIGNED → RESOLVED
Closed: 4 years ago
Keywords: checkin-needed
Resolution: --- → FIXED
Target Milestone: --- → 3.46
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