X-Git-Url: http://git.openwrt.org/?p=project%2Fprocd.git;a=blobdiff_plain;f=make_syscall_h.sh;h=18d9131111ae3ec8579d19d300d4b019dfe78928;hp=57333fdb7f09f7ce58ef72f25c5d65a4a44de4bb;hb=HEAD;hpb=dfcfcca7baf2b22d8dac1a724bdb7dd9d52f4c05

diff --git a/make_syscall_h.sh b/make_syscall_h.sh
index 57333fd..17e3bc4 100755
--- a/make_syscall_h.sh
+++ b/make_syscall_h.sh
@@ -12,7 +12,53 @@ CC=$1
 [ -n "$TARGET_CC_NOCACHE" ] && CC=$TARGET_CC_NOCACHE
 
 echo "#include <asm/unistd.h>"
-echo "static const char *syscall_names[] = {"
-echo "#include <sys/syscall.h>" | ${CC} -E -dM - | grep '^#define __NR_' | \
-	LC_ALL=C sed -r -n -e 's/^\#define[ \t]+__NR_([a-z0-9_]+)[ \t]+([ ()+0-9NR_Linux]+)(.*)/ [\2] = "\1",/p'
+echo "static const char *__syscall_names[] = {"
+echo "#include <sys/syscall.h>" | ${CC} -E -dM - | grep '^#define __NR_[a-z0-9_]\+[ \t].*[0-9].*$' | \
+	LC_ALL=C sed -r -n -e 's/^\#define[ \t]+__NR_([a-z0-9_]+)[ \t]+([ ()+0-9a-zNR_LSYCABE]+)(.*)/ [\2] = "\1",/p'
 echo "};"
+
+extra_syscalls="$(echo "#include <sys/syscall.h>" | ${CC} -E -dM - | sed -r -n -e 's/^#define __ARM_NR_([a-z0-9_]+)/\1/p')"
+
+cat <<EOF
+static inline const char *syscall_name(unsigned i) {
+  if (i < ARRAY_SIZE(__syscall_names))
+    return __syscall_names[i];
+  switch (i) {
+EOF
+echo "$extra_syscalls" | \
+    LC_ALL=C sed -r -n -e 's/^([a-z0-9_]+)[ \t]+([ ()+0-9a-zNR_LAMBSE]+)(.*)/    case \2: return "\1";/p'
+cat <<EOF
+  default: return (void*)0;
+  }
+}
+EOF
+
+cat <<EOF
+static inline int syscall_index(unsigned i) {
+  if (i < ARRAY_SIZE(__syscall_names))
+    return i;
+  switch (i) {
+EOF
+echo "$extra_syscalls" | \
+    LC_ALL=C perl -ne 'print "  case $2: return ARRAY_SIZE(__syscall_names) + ", $. - 1, ";\n" if /^([a-z0-9_]+)[ \t]+([ ()+0-9a-zNR_LAMBSE]+)(.*)/;'
+cat <<EOF
+  default: return -1;
+  }
+}
+EOF
+
+cat <<EOF
+static inline int syscall_index_to_number(unsigned i) {
+  if (i < ARRAY_SIZE(__syscall_names))
+    return i;
+  switch (i) {
+EOF
+echo "$extra_syscalls" | \
+    LC_ALL=C perl -ne 'print "  case ARRAY_SIZE(__syscall_names) + ", $. - 1, ": return $2;\n" if /^([a-z0-9_]+)[ \t]+([ ()+0-9a-zNR_LAMBSE]+)(.*)/;'
+cat <<EOF
+  default: return -1;
+  }
+}
+EOF
+
+echo "#define SYSCALL_COUNT (ARRAY_SIZE(__syscall_names) + $({ test -n "$extra_syscalls" && echo "$extra_syscalls"; } | wc -l))"