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| author | Miloslav Trmač <mitr@redhat.com> | 2014-07-01 20:00:48 +0200 |
|---|---|---|
| committer | Miloslav Trmač <mitr@redhat.com> | 2015-06-19 04:30:54 +0200 |
| commit | 2881f8b260c03df29afb0e35e6d1707240f95ad7 (patch) | |
| tree | 77012fce3db2f7f49fef851e662abe0888d68a46 /src/polkitbackend/polkitbackendjsauthority.c | |
| parent | 5c668722320eb363f713a0998934aa48fecd56cb (diff) | |
| download | polkit-2881f8b260c03df29afb0e35e6d1707240f95ad7.tar.gz | |
Prevent builds against SpiderMonkey with exact stack rooting
“Exact stack rooting” means that every on-stack pointer to a JavaScript
value needs to be registered with the runtime. The current code doesn't
do this, so it is not safe to use against a runtime with this
configuration. Luckily this configuration is not default.
See
https://developer.mozilla.org/en-US/docs/SpiderMonkey/Internals/GC/Exact_Stack_Rooting
and other pages in the wiki for what the conversion would require.
https://bugs.freedesktop.org/show_bug.cgi?id=69501
Diffstat (limited to 'src/polkitbackend/polkitbackendjsauthority.c')
| -rw-r--r-- | src/polkitbackend/polkitbackendjsauthority.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/polkitbackend/polkitbackendjsauthority.c b/src/polkitbackend/polkitbackendjsauthority.c index 39f7060..22812a6 100644 --- a/src/polkitbackend/polkitbackendjsauthority.c +++ b/src/polkitbackend/polkitbackendjsauthority.c @@ -43,6 +43,13 @@ #include "initjs.h" /* init.js */ +#ifdef JSGC_USE_EXACT_ROOTING +/* See https://developer.mozilla.org/en-US/docs/SpiderMonkey/Internals/GC/Exact_Stack_Rooting + * for more information about exact stack rooting. + */ +#error "This code is not safe in SpiderMonkey exact stack rooting configurations" +#endif + /** * SECTION:polkitbackendjsauthority * @title: PolkitBackendJsAuthority |