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peproc: Fix sigsevg in smacro expansion

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In case if smacro is called with inapropriate
number of arguments exit early. Actually we have
to handle this situation more gracefully but
this requires a way more efforts than two
line patches (need to refactor macro expansion).

https://bugzilla.nasm.us/show_bug.cgi?id=3392431

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This commit is contained in:
Cyrill Gorcunov
2017-10-22 18:42:07 +03:00
parent c9244eaadd
commit 59ce1c67b1
1 changed files with 10 additions and 0 deletions
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10
asm/preproc.c
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@@ -4430,6 +4430,16 @@ again:
ttt->text, 0); ttt->text, 0);
ptail = &pt->next; ptail = &pt->next;
ttt = ttt->next; ttt = ttt->next;
if (!ttt && i > 0) {
/*
* FIXME: Need to handle more gracefully,
* exiting early on agruments analysis.
*/
nasm_error(ERR_FATAL,
"macro `%s' expects %d args",
mstart->text,
(int)paramsize[t->type - TOK_SMAC_PARAM]);
}
} }
tline = pcopy; tline = pcopy;
} else if (t->type == TOK_PREPROC_Q) { } else if (t->type == TOK_PREPROC_Q) {