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| author | Roland McGrath <roland@gnu.org> | 2002-12-27 23:05:53 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2002-12-27 23:05:53 +0000 |
| commit | aad08dbad983a352492542a61478074e5869dec6 (patch) | |
| tree | a834bf94b853e8ac0331bbf0eed8e4862c44ff38 /scripts/gen-as-const.awk | |
| parent | 4f172c25f1c39e86b433075d36f3e6c19e06f136 (diff) | |
| download | glibc-aad08dbad983a352492542a61478074e5869dec6.zip glibc-aad08dbad983a352492542a61478074e5869dec6.tar.gz glibc-aad08dbad983a352492542a61478074e5869dec6.tar.bz2 | |
2002-12-27 Roland McGrath <roland@redhat.com>
* 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)).
Diffstat (limited to 'scripts/gen-as-const.awk')
| -rw-r--r-- | scripts/gen-as-const.awk | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/scripts/gen-as-const.awk b/scripts/gen-as-const.awk new file mode 100644 index 0000000..b29656e --- /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 "}" } |