On Fri, Aug 12, 2016 at 03:49:15PM +0200, Ard Biesheuvel wrote: > We could enable CONFIG_ARM_MODULE_PLTS in this case, and force a > branch via a PLT entry if an affected instruction is encountered. > However, this only covers branch instructions that are covered by > relocations, so we'd still need to scan the module .text to look for > affected instructions whose targets has been resolved at compile time. Only if it's combined with detecting which regions of the .text section are really instructions - just looking for something that appears to be a branch instruction will be unreliable as the .text contains literal data, and literal data could look like a branch instruction. -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
