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http://bugs.exim.org/show_bug.cgi?id=1243 Summary: enabling JIT on jailbroken iOS devices Product: PCRE Version: 8.30 Platform: Other OS/Version: All Status: NEW Severity: bug Priority: medium Component: Code AssignedTo: [email protected] ReportedBy: [email protected] CC: [email protected] JIT compilation is possible on jailbroken iOS devices, however Apple removed __clear_cache from libgcc (on the devices) so it's not possible to use that function. By using ARM assembler it is possible to flush the instruction cache. So I suggest the adding this: #define SLJIT_CACHE_FLUSH(from, to) \ void jailbroken_clear_cache(char* from, char *to) { const int syscall = 0xf0002; __asm __volatile ( "mov r0, %0\n" "mov r1, %1\n" "mov r7, %2\n" "mov r2, #0x0\n" "svc 0x00000000\n" : : "r" (from), "r" (to), "r" (syscall) : "r0", "r1", "r7" ); } Best Yllier -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
