From aad08dbad983a352492542a61478074e5869dec6 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 27 Dec 2002 23:05:53 +0000 Subject: 2002-12-27 Roland McGrath * scripts/gen-as-const.awk: New file. * Makefile (distribute): Add it. * Makerules ($(common-objpfx)%.h %.h.d: %.sym): New pattern rule. (before-compile): Add $(gen-as-const-headers:%.sym=$(common-objpfx)%.h) to the list. (+depfiles): Add $(addprefix $(common-objpfx),$(gen-as-const-headers)). --- scripts/gen-as-const.awk | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 scripts/gen-as-const.awk (limited to 'scripts') diff --git a/scripts/gen-as-const.awk b/scripts/gen-as-const.awk new file mode 100644 index 0000000000..b29656ee71 --- /dev/null +++ b/scripts/gen-as-const.awk @@ -0,0 +1,29 @@ +# Script used in producing headers of assembly constants from C expressions. +# The input to this script looks like: +# #cpp-directive ... +# NAME1 +# NAME2 expression ... +# The output of this script is C code to be run through gcc -S and then +# massaged to extract the integer constant values of the given C expressions. +# A line giving just a name implies an expression consisting of just that name. + +BEGIN { started = 0 } + +# cpp directives go straight through. +/^#/ { print; next } + +NF >= 1 && !started { + print "void dummy(void) {"; + started = 1; +} + +NF == 1 { sub(/^.*$/, "& &"); } + +NF > 1 { + name = $1; + sub(/^[^ ]+[ ]+/, ""); + printf "asm (\"@@@name@@@%s@@@value@@@%%0@@@end@@@\" : : \"i\" (%s));\n", + name, $0; +} + +END { if (started) print "}" } -- cgit v1.2.3