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authorH.J. Lu <hjl.tools@gmail.com>2020-08-25 05:35:45 -0700
committerH.J. Lu <hjl.tools@gmail.com>2020-08-31 06:04:30 -0700
commit306bdd99834204d0d70985c39382d2c42a619a09 (patch)
treed49b2b21dafe9e5b83a7eb359b1814796d73c5c8
parente3960d1c57e57f33e0e846d615788f4ede73b945 (diff)
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x32: Add <fixup-asm-unistd.h> and regenerate arch-syscall.h
X32 uses the same 64-bit syscall interface for set_thread_area.  But
__NR_set_thread_area is missing from <asm/unistd_x32.h>.  A kernel patch
was submitted:

From 7b05d5b43ae2545e0d4a3edb24205d18bc883626 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Sat, 15 Aug 2020 10:34:00 -0700
Subject: [PATCH] x86-64: Enable x32 set_thread_area

X32 uses the common 64-bit syscall interface for set_thread_area.  Add
<fixup-asm-unistd.h> to provide __NR_set_thread_area.

Co-authored-by: Florian Weimer <fweimer@redhat.com>
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/x32/fixup-asm-unistd.h21
2 files changed, 22 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
index 1a701c1472..7b64b1fa0c 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
@@ -260,6 +260,7 @@
 #define __NR_sendto 1073741868
 #define __NR_set_mempolicy 1073742062
 #define __NR_set_robust_list 1073742354
+#define __NR_set_thread_area 1073742029
 #define __NR_set_tid_address 1073742042
 #define __NR_setdomainname 1073741995
 #define __NR_setfsgid 1073741947
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/fixup-asm-unistd.h b/sysdeps/unix/sysv/linux/x86_64/x32/fixup-asm-unistd.h
new file mode 100644
index 0000000000..01d1f448ca
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/fixup-asm-unistd.h
@@ -0,0 +1,21 @@
+/* Regularize <asm/unistd.h> definitions.  X32 version.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* X32 uses the same 64-bit syscall interface for set_thread_area.   */
+#ifndef __NR_set_thread_area
+# define __NR_set_thread_area 1073742029
+#endif