35 lines
1.3 KiB
Diff
35 lines
1.3 KiB
Diff
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commit 12ff80b312c11b0284df7a1c5cb9be6418f85228
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Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
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Date: Tue Feb 2 15:02:09 2021 +0000
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Remove PR_TAGGED_ADDR_ENABLE from sys/prctl.h
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The value of PR_TAGGED_ADDR_ENABLE was incorrect in the installed
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headers and the prctl command macros were missing that are needed
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for it to be useful (PR_SET_TAGGED_ADDR_CTRL). Linux headers have
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the definitions since 5.4 so it's widely available, we don't need
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to repeat these definitions. The remaining definitions are from
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Linux 5.10.
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To build glibc with --enable-memory-tagging, Linux 5.4 headers and
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binutils 2.33.1 or newer is needed.
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Reviewed-by: DJ Delorie <dj@redhat.com>
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(cherry picked from commit f4596d9540021265a99697fceef8a434c47e8bcf)
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diff --git a/sysdeps/unix/sysv/linux/sys/prctl.h b/sysdeps/unix/sysv/linux/sys/prctl.h
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index 00817ff0f14c617d..c9048c7cdb3e4d26 100644
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--- a/sysdeps/unix/sysv/linux/sys/prctl.h
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+++ b/sysdeps/unix/sysv/linux/sys/prctl.h
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@@ -25,10 +25,6 @@
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we're picking up... */
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/* Memory tagging control operations (for AArch64). */
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-#ifndef PR_TAGGED_ADDR_ENABLE
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-# define PR_TAGGED_ADDR_ENABLE (1UL << 8)
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-#endif
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-
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#ifndef PR_MTE_TCF_SHIFT
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# define PR_MTE_TCF_SHIFT 1
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# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
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