diff options
Diffstat (limited to 'src/cmd/gc/unsafe.c')
| -rw-r--r-- | src/cmd/gc/unsafe.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/src/cmd/gc/unsafe.c b/src/cmd/gc/unsafe.c index d304077c8..95200ad41 100644 --- a/src/cmd/gc/unsafe.c +++ b/src/cmd/gc/unsafe.c @@ -2,12 +2,15 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. +#include <u.h> +#include <libc.h> #include "go.h" /* * look for * unsafe.Sizeof * unsafe.Offsetof + * unsafe.Alignof * rewrite with a constant */ Node* @@ -20,7 +23,7 @@ unsafenmagic(Node *nn) Val val; Node *fn; NodeList *args; - + fn = nn->left; args = nn->list; @@ -78,10 +81,10 @@ no: return N; bad: - yyerror("invalid expression %#N", nn); + yyerror("invalid expression %N", nn); v = 0; goto ret; - + yes: if(args->next != nil) yyerror("extra arguments for %S", s); @@ -91,7 +94,23 @@ ret: val.u.xval = mal(sizeof(*n->val.u.xval)); mpmovecfix(val.u.xval, v); n = nod(OLITERAL, N, N); + n->orig = nn; n->val = val; n->type = types[TUINTPTR]; + nn->type = types[TUINTPTR]; return n; } + +int +isunsafebuiltin(Node *n) +{ + if(n == N || n->op != ONAME || n->sym == S || n->sym->pkg != unsafepkg) + return 0; + if(strcmp(n->sym->name, "Sizeof") == 0) + return 1; + if(strcmp(n->sym->name, "Offsetof") == 0) + return 1; + if(strcmp(n->sym->name, "Alignof") == 0) + return 1; + return 0; +} |