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path: root/recipes/uclibc/uclibc-0.9.28/thumb-sysnum-h.patch
blob: 599691eceeb251170c8ea719de336dca1323ba39 (plain)
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--- uClibc-0.9.28/extra/scripts/gen_bits_syscall_h.sh.orig	2005-09-18 02:20:04.441119651 -0700
+++ uClibc-0.9.28/extra/scripts/gen_bits_syscall_h.sh	2005-09-18 03:17:58.287715035 -0700
@@ -11,6 +11,37 @@
 UNISTD_H_PATH=$TOPDIR/include/asm/unistd.h
 INCLUDE_OPTS="-I$TOPDIR/include"
 
+# This test is added to avoid mangling the (variable) syscall base value on
+# ARM
+if echo "#if defined __arm__ || defined __thumb__
+xyzzy
+#endif" | $CC -E $INCLUDE_OPTS - | grep xyzzy >/dev/null
+then
+	echo '/* WARNING!!! AUTO-GENERATED FILE!!! DO NOT EDIT!!! */
+#ifndef _BITS_SYSNUM_H
+#define _BITS_SYSNUM_H
+
+#ifndef _SYSCALL_H
+# error "Never use <bits/sysnum.h> directly; include <sys/syscall.h> instead."
+#endif'
+	# arm case, assume unistd.h conforms to the one in 2.6.x, if not
+	# go into a corner and sulk (fix this script)  The sed rune below
+	# expects items of the form UCLIBC_foo at the start of the line
+	# for each syscall number, the arm syscalls all start with lower
+	# case alpha and the all-important __NR_SYSCALL_BASE does not...
+	sed -n -e '/__sys2/Q' -e '/^[ 	]*#include/,${
+		s/^[ 	]*#include.*$//
+		h
+		s/^[ 	]*#define[ 	]*__NR_\([a-z][A-Za-z0-9_]*\)[ 	]*\(.*\)[ 	]*$/#undef __NR_\1\
+#define SYS_\1 __NR_\1/p
+		g
+		p
+		}' $UNISTD_H_PATH
+	# i.e. this relies on the __sys2 definition coming after the last
+	# sys number define (and #include preceding all useful definitions)
+	echo '#endif'
+else
+# non-arm case
 ( echo "#include \"$UNISTD_H_PATH\"" ;
   $CC -E -dN $INCLUDE_OPTS $UNISTD_H_PATH | # needed to strip out any kernel-internal defines
   sed -ne 's/^[ ]*#define[ ]*__NR_\([A-Za-z0-9_]*\).*/UCLIBC_\1 __NR_\1/gp'
@@ -29,3 +60,4 @@
   echo ;
   echo "#endif" ;
 )
+fi