cooker updates spilling all over the place

Only tangentially related:

- make seitan C99 again, so that I can build cooker without warnings

- make Makefiles make use of the usual conventions about assigning
  directory paths in variables, drop numbers.h as requirement for
  cooker and make it convenient to run stand-alone Makefiles

- fix up nr_syscalls.sh to be POSIX, otherwise it will give syntax
  errors on my system

- define a single, common way to refer to offsets in gluten, and
  functions to use those offsets in a safe way. Immediates are gone:
  cooker will write any bit of "data" to the read-only section

- call const what has to be const

- define on-disk layout for gluten

- add OP_NR (to check syscall numbers), rename OP_COPY_ARGS to
  OP_LOAD (it loads _selected_ stuff from arguments)

As for cooker itself:

- drop ARG_ and arg_ prefixes from struct names, and similar

- add/rework functions to build OP_NR, OP_LOAD, OP_CMP, and to
  write constant data to gluten

- add parsing for "compound" arguments, but that's not completely
  hooked into evaluation for numeric arguments yet

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/cooker/emit.h b/cooker/emit.h
index 74264b1..94b2600 100644
--- a/cooker/emit.h
+++ b/cooker/emit.h
@@ -6,7 +6,17 @@
 #ifndef EMIT_H
 #define EMIT_H
 
-int emit_nr(struct gluten_ctx *g, long number);
-int emit_load(struct gluten_ctx *g, int offset, int index, size_t len);
+void emit_nr(struct gluten_ctx *g, long number);
+void emit_load(struct gluten_ctx *g, struct gluten_offset dst,
+	       int index, size_t len);
+void emit_cmp(struct gluten_ctx *g, enum op_cmp_type cmp,
+	      struct gluten_offset x, struct gluten_offset y, size_t size,
+	      enum jump_type jmp);
+void emit_cmp_field(struct gluten_ctx *g, enum op_cmp_type cmp,
+		    struct field *field,
+		    struct gluten_offset base, struct gluten_offset match,
+		    enum jump_type jmp);
+struct gluten_offset emit_data(struct gluten_ctx *g, enum type type,
+			       union value *value);
 
 #endif /* EMIT_H */