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| author | Geoff Keating <geoffk@cygnus.com> | 1999-09-09 04:00:37 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@gcc.gnu.org> | 1999-09-09 04:00:37 +0000 |
| commit | fc009f966c98317401b51127f59de4ad37bb7d19 (patch) | |
| tree | adfb849ae0813b5bacab43fb7a7ab5ec23bc7fb6 /gcc/c-pragma.c | |
| parent | d60f72aec57414b8339eecb25c33b423af7e6946 (diff) | |
| download | gcc-fc009f966c98317401b51127f59de4ad37bb7d19.zip gcc-fc009f966c98317401b51127f59de4ad37bb7d19.tar.gz gcc-fc009f966c98317401b51127f59de4ad37bb7d19.tar.bz2 | |
Makefile.in (cppexp.o): Depend on cpphash.h.
* Makefile.in (cppexp.o): Depend on cpphash.h.
* cppexp.c (cpp_lex): Handle `defined (xxx)' for poisoned xxx.
Include cpphash.h.
* cpphash.c (special_symbol): Handle plain `xxx' for poisoned xxx.
* cpplib.c (do_define): Generalise to handle poisoned definitions,
redefining poisoned identifiers, etc.
(do_undef): Don't allow poisoned identifiers to be undefined.
(do_pragma): Add #pragma poison.
(do_xifdef): Handle `#ifdef xxx' for poisoned xxx.
* cccp.c: Add T_POISON node type.
(special_symbol): Handle `defined(xxx)' and plain `xxx' for
poisoned xxx.
(do_define): Generalise to handle poisoned definitions,
redefining poisoned identifiers, etc.
(do_undef): Don't allow poisoned identifiers to be undefined.
(do_pragma): Add #pragma poison.
(do_xifdef): Handle `#ifdef xxx' for poisoned xxx.
* c-pragma.c (handle_pragma_token): Ignore #pragma poison.
* c-pragma.h: Add ps_poison state. We now always have generic
pragmas.
From-SVN: r29224
Diffstat (limited to 'gcc/c-pragma.c')
| -rw-r--r-- | gcc/c-pragma.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/gcc/c-pragma.c b/gcc/c-pragma.c index 017bdef..bfb6bdc 100644 --- a/gcc/c-pragma.c +++ b/gcc/c-pragma.c @@ -300,6 +300,10 @@ handle_pragma_token (string, token) ret_val = 1; /* Ignore the pragma. */ break; #endif /* HANDLE_PRAGMA_WEAK */ + + case ps_poison: + ret_val = 1; + break; } type = state = ps_start; @@ -338,9 +342,11 @@ handle_pragma_token (string, token) #ifdef HANDLE_PRAGMA_WEAK if (strcmp (string, "weak") == 0) type = state = ps_weak; -#endif +#endif + if (strcmp (string, "poison") == 0) + type = state = ps_poison; break; - + #ifdef HANDLE_PRAGMA_WEAK case ps_weak: name = permalloc (strlen (string) + 1); @@ -485,7 +491,12 @@ handle_pragma_token (string, token) state = ps_bad; break; #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */ - + + case ps_poison: + if (token && TREE_CODE (token) != IDENTIFIER_NODE) + state = ps_bad; + break; + case ps_bad: case ps_done: break; |