+2012-11-20 Carlos O'Donell <carlos_odonell@mentor.com>
+
+ * sysdeps/unix/make-syscalls.sh: Document prefixes.
+
2012-11-20 Thomas Schwinge <thomas@codesourcery.com>
* sysdeps/sh/dl-machine.h (ELF_MACHINE_RUNTIME_FIXUP_PARAMS): New
# Expects $sysdirs in environment.
##############################################################################
-
-# Syscall Signature Key Letters for BP Thunks:
+#
+# This script is used to process the syscall data encoded in the various
+# syscalls.list files to produce thin assembly syscall wrappers around the
+# appropriate OS syscall. See syscall-template.s for more details on the
+# actual wrapper.
+#
+# Syscall Signature Prefixes:
+#
+# C: cancellable (i.e., this syscall is a cancellation point)
+# E: errno and return value are not set by the call
+# V: errno is not set, but errno or zero (success) is returned from the call
+#
+# Syscall Signature Key Letters:
#
# a: unchecked address (e.g., 1st arg to mmap)
# b: non-NULL buffer (e.g., 2nd arg to read; return value from mmap)
# v: vararg scalar (e.g., optional 3rd arg to open)
# V: byte-per-page vector (3rd arg to mincore)
# W: wait status, optionally-NULL pointer to int (e.g., 2nd arg of wait4)
+#
ptr='[abBfFINpPsSWV]' # all pointer keyletters
int='[inv]' # all scalar keyletters