This serie propose a clean solution to the expansion of some builtins
like __builtin_bswap16() which gcc consider as an integer constant
expression when the arg is itself an integer constant and is used as
such in the kernel in code like:
#define htons(x) __builtin_bswap16(x)
...
switch (protocol) {
case htons(ETH_P_IPV6):
...
This serie needs to be applied on top of Johannes Berg's patch
concerning the same problem and the tests depends on the testsuite
extensions posted previously.
Alternatively, this serie can also be found as:
git://github.com/lucvoo/sparse.git sent/builtin-bswap
Luc Van Oostenryck (3):
move evaluation & expansion of builtins in a separate file
allow builtins to have prototype and evaluate/expand methods
expand __builtin_bswap*() with constant args
Makefile | 1 +
builtin.c | 241 ++++++++++++++++++++++++++++++++++++
evaluate.c | 6 +
expand.c | 24 +---
expand.h | 34 +++++
lib.c | 35 +-----
lib.h | 5 +
symbol.c | 160 +-----------------------
symbol.h | 3 +-
token.h | 1 +
validation/builtin-bswap-constant.c | 48 +++++++
validation/builtin-bswap.c | 52 ++++++++
12 files changed, 394 insertions(+), 216 deletions(-)
create mode 100644 builtin.c
create mode 100644 expand.h
create mode 100644 validation/builtin-bswap-constant.c
create mode 100644 validation/builtin-bswap.c
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