948620 - Add env variable to disable sandbox at runtime

Status: RESOLVED FIXED

(Firefox OS Graveyard :: General, defect)

Description

[Guillaume Destuynder [:kang] [this account is no longer active]]

See also https://bugzilla.mozilla.org/show_bug.cgi?id=928042 for the Windows equivalent.
Per request (:pauljt, :ladamski) we need this for B2G as well, in order to allow devs to help debugging issues.

Most of the implementation is discussed in bug 928042. It is slightly different than the windows code as the B2G sandbox start in 2 places right now, thus both places have to be handled, or the setprocesssandbox function needs to be handled instead (and its at a different place)

Comment 1

[Guillaume Destuynder [:kang] [this account is no longer active]]

Attachment: Disable seccomp/sandbox if MOZ_DISABLE_CONTENT_SANDBOX is set

simple & straight forward.
mainly, reusing the windows mechanism would involve too many changes IMO.

It uses the same environment variable, MOZ_DISABLE_CONTENT_SANDBOX.

to use:
adb shell
stop b2g
export MOZ_DISABLE_CONTENT_SANDBOX=1
/system/bin/b2g.sh

Comment 2

[Guillaume Destuynder [:kang] [this account is no longer active]]

https://tbpl.mozilla.org/?tree=Try&rev=60ba9b024a85

Comment 3

[Guillaume Destuynder [:kang] [this account is no longer active]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/a82beb76bbd4

Comment 4

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/a82beb76bbd4