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Teach romcc about attribute((unused)) 

This makes it easier to use the same code on romcc and gcc.
Specifying attribute((unused)) on romcc does nothing.

Change-Id: If9a6900cad12900e499c4b8c91586511eb801987
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1132
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>
This commit is contained in:
Stefan Reinauer 2012-06-21 17:21:08 -07:00 committed by Peter Stuge
parent 274c63e367
commit 57cd1dd296
1 changed files with 5 additions and 0 deletions
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5
util/romcc/romcc.c
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@ -1084,6 +1084,7 @@ struct compile_state {
struct hash_entry *i_default; struct hash_entry *i_default;
struct hash_entry *i_return; struct hash_entry *i_return;
struct hash_entry *i_noreturn; struct hash_entry *i_noreturn;
struct hash_entry *i_unused;
/* Additional hash entries for predefined macros */ /* Additional hash entries for predefined macros */
struct hash_entry *i_defined; struct hash_entry *i_defined;
struct hash_entry *i___VA_ARGS__; struct hash_entry *i___VA_ARGS__;
@ -12752,6 +12753,9 @@ static unsigned int attrib(struct compile_state *state, unsigned int attributes)
else if (ident == state->i_noreturn) { else if (ident == state->i_noreturn) {
// attribute((noreturn)) does nothing (yet?) // attribute((noreturn)) does nothing (yet?)
} }
else if (ident == state->i_unused) {
// attribute((unused)) does nothing (yet?)
}
else { else {
error(state, 0, "Unknown attribute:%s", ident->name); error(state, 0, "Unknown attribute:%s", ident->name);
} }
@ -24988,6 +24992,7 @@ static void compile(const char *filename,
state.i_noinline = lookup(&state, "noinline", 8); state.i_noinline = lookup(&state, "noinline", 8);
state.i_always_inline = lookup(&state, "always_inline", 13); state.i_always_inline = lookup(&state, "always_inline", 13);
state.i_noreturn = lookup(&state, "noreturn", 8); state.i_noreturn = lookup(&state, "noreturn", 8);
state.i_unused = lookup(&state, "unused", 8);
/* Process the command line macros */ /* Process the command line macros */
process_cmdline_macros(&state); process_cmdline_macros(&state);