[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Tinycc-devel] Get a token from char *
From: |
grischka |
Subject: |
Re: [Tinycc-devel] Get a token from char * |
Date: |
Tue, 08 Feb 2011 14:29:04 +0100 |
User-agent: |
Thunderbird 2.0.0.23 (Windows/20090812) |
Thomas Preud'homme wrote:
Hello all,
Is there a function to get the token from a supplied string, something whose
prototype would be: int get_tok_from_str(char *str)?
I made an improvement of my commit about assembly function label (commit
9b09fc3) but when I wanted to push it a conflict made me realize another
attempt has been made which handle more pattern but just ignore label for the
moment (cf commit 264a1036). This commit parse the asm label as 2 distincts
string: one user defined and one "API". So I'd need to create a token for the
concatenation in order to merge both code and do the redirection.
This might be a misunderstanding. String concatenation is nothing
special with asm labels. It is part of the normal C parsing rules:
puts("1" "2" "3");
Accordingly
int bar() asm ("foo_" "bar" "_9");
is eqivalent to
int bar() asm ("foo_bar_9");
parse_asm_str already does that.
However I'm not sure that converting the asm label into a C token is
the right thing. For example, tcc already can use "__bound_malloc"
instead of "malloc", where "malloc" is the C token and "__bound_malloc"
is the elf-symbol name.
Btw. gnu asm labels can be used not only with functions but with data
as well: http://gcc.gnu.org/onlinedocs/gcc-4.5.2/gcc/Asm-Labels.html
--- grischka
I looked at
tccpp.c but no function is used to get a token, it's done inside a rather big
function. Would it make sense to create a function for this? If so, I don't
feel confortable to do it myself, could someone who knows this code well do it
if it doesn't take too much time?
Best regards,
Thomas