https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83910
Bug ID: 83910 Summary: Add --enable-cet-property Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com Blocks: 81652 Target Milestone: --- Target: x86 CET is enabled by run-time loader only if all modules have CET property: [hjl@gnu-tools-1 gcc]$ readelf -n crtbegin.o Displaying notes found in: .note.gnu.property Owner Data size Description GNU 0x00000010 NT_GNU_PROPERTY_TYPE_0 Properties: x86 feature: IBT, SHSTK [hjl@gnu-tools-1 gcc]$ Linker will create CET property only if all input object files have CET property. To create GCC run-time libraries with CET property, CET enabled glibc must be used to build GCC. We should add --enable-cet-property to GCC, which will pass "-z ibt -z shstk" to linker when creating target run-time libraries. This GCC can then be used to build CET enabled glibc. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81652 [Bug 81652] [meta-bug] -fcf-protection=full -mcet bugs