From: Szabolcs Nagy Date: Tue, 2 Feb 2021 15:02:09 +0000 (+0000) Subject: Remove PR_TAGGED_ADDR_ENABLE from sys/prctl.h X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12ff80b312c11b0284df7a1c5cb9be6418f85228;p=thirdparty%2Fglibc.git Remove PR_TAGGED_ADDR_ENABLE from sys/prctl.h The value of PR_TAGGED_ADDR_ENABLE was incorrect in the installed headers and the prctl command macros were missing that are needed for it to be useful (PR_SET_TAGGED_ADDR_CTRL). Linux headers have the definitions since 5.4 so it's widely available, we don't need to repeat these definitions. The remaining definitions are from Linux 5.10. To build glibc with --enable-memory-tagging, Linux 5.4 headers and binutils 2.33.1 or newer is needed. Reviewed-by: DJ Delorie (cherry picked from commit f4596d9540021265a99697fceef8a434c47e8bcf) --- diff --git a/sysdeps/unix/sysv/linux/sys/prctl.h b/sysdeps/unix/sysv/linux/sys/prctl.h index 00817ff0f14..c9048c7cdb3 100644 --- a/sysdeps/unix/sysv/linux/sys/prctl.h +++ b/sysdeps/unix/sysv/linux/sys/prctl.h @@ -25,10 +25,6 @@ we're picking up... */ /* Memory tagging control operations (for AArch64). */ -#ifndef PR_TAGGED_ADDR_ENABLE -# define PR_TAGGED_ADDR_ENABLE (1UL << 8) -#endif - #ifndef PR_MTE_TCF_SHIFT # define PR_MTE_TCF_SHIFT 1 # define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)