Commit Graph

19 Commits

Author SHA1 Message Date
Kirill Smelkov
0c928da96d tcc: Draft suppoprt for -MD/-MF options
In build systems, this is used to automatically collect target
dependencies, e.g.

    ---- 8< (hello.c) ----
    #include "hello.h"
    #include <stdio.h>

    int main()
    {
        printf("Hello World!\n");
        return 0;
    }

$ tcc -MD -c hello.c    # -> hello.o, hello.d
$ cat hello.d
hello.o : \
        hello.c \
        hello.h \
        /usr/include/stdio.h \
        /usr/include/features.h \
        /usr/include/bits/predefs.h \
        /usr/include/sys/cdefs.h \
        /usr/include/bits/wordsize.h \
        /usr/include/gnu/stubs.h \
        /usr/include/bits/wordsize.h \
        /usr/include/gnu/stubs-32.h \
        /home/kirr/local/tcc/lib/tcc/include/stddef.h \
        /usr/include/bits/types.h \
        /usr/include/bits/wordsize.h \
        /usr/include/bits/typesizes.h \
        /usr/include/libio.h \
        /usr/include/_G_config.h \
        /usr/include/wchar.h \
        /home/kirr/local/tcc/lib/tcc/include/stdarg.h \
        /usr/include/bits/stdio_lim.h \
        /usr/include/bits/sys_errlist.h \

NOTE: gcc supports -MD only for .c -> .o, but in tcc, we generate
dependencies for whatever action is being taken. E.g. for .c -> exe, the
result will be:

$ tcc -MD -o hello hello.c  # -> hello, hello.d
hello: \
        /usr/lib/crt1.o \
        /usr/lib/crti.o \
        hello.c \
        hello.h \
        /usr/include/stdio.h \
        /usr/include/features.h \
        /usr/include/bits/predefs.h \
        /usr/include/sys/cdefs.h \
        /usr/include/bits/wordsize.h \
        /usr/include/gnu/stubs.h \
        /usr/include/bits/wordsize.h \
        /usr/include/gnu/stubs-32.h \
        /home/kirr/local/tcc/lib/tcc/include/stddef.h \
        /usr/include/bits/types.h \
        /usr/include/bits/wordsize.h \
        /usr/include/bits/typesizes.h \
        /usr/include/libio.h \
        /usr/include/_G_config.h \
        /usr/include/wchar.h \
        /home/kirr/local/tcc/lib/tcc/include/stdarg.h \
        /usr/include/bits/stdio_lim.h \
        /usr/include/bits/sys_errlist.h \
        /usr/lib/libc.so \
        /lib/libc.so.6 \
        /usr/lib/ld-linux.so.2 \
        /lib/ld-linux.so.2 \
        /usr/lib/libc_nonshared.a \
        /lib/libc.so.6 \
        /usr/lib/libc_nonshared.a \
        /home/kirr/local/tcc/lib/tcc/libtcc1.a \
        /usr/lib/crtn.o \

So tcc dependency generator is a bit more clever than one used in gcc :)

Also, I've updated TODO and Changelog (in not-yet-released section).

v2:

(Taking inputs from grischka and me myself)

- put code to generate deps file into a function.
- used tcc_fileextension() instead of open-coding
- generate deps only when compilation/preprocessing was successful

v3:

- use pstrcpy instead of snprintf(buf, sizeof(buf), "%s", ...)
2010-06-21 20:49:02 +04:00
Kirill Smelkov
a919a373da Add input files/libs and reloc_output switch to TCCState
files[0], and reloc_outpu will be needed for (upcoming in the next
patch) "compute default outfile name" refactored into libtcc function.

Also, since for symmetry and from libification point of view, it makes
some sense to also put all information about what was given as input to
compilation into TCCState, let's not only put files[0], but all
files and all libraries given explicitely by user.

One point: I've used bitfield for reloc_output & trimmed down
output_type to 8 bits so that TCCState stays the same in size, and also
access to output_type is (hopefully) is not slower.

By the way -- as of today, sizeof(TCCState) on i686-pc-linux-gnu is 2884
bytes...
2010-06-20 20:30:01 +04:00
Detlef Riekenberg
34dabe496f libtcc: Detect (but ignore) -init and -fini for -Wl
--
By by ... Detlef
2010-04-05 22:56:33 +02:00
Detlef Riekenberg
78e83d8761 libtcc: Allow multiple options for -Wl separated with ','
I moved the code to libtcc to prepare for a later tiny_ld

--
By by ... Detlef
2010-04-05 21:21:58 +02:00
grischka
5299142286 x86-64: use uplong for symbol values 2010-01-14 20:59:42 +01:00
grischka
8bbde91f62 tcc_relocate: revert to 0.9.24 behavior 2009-12-19 22:16:23 +01:00
grischka
b56f956247 libtcc: add support to be build as DLL 2009-04-18 15:08:03 +02:00
grischka
d165e87340 libtcc: new api tcc_set_lib_path 2009-04-18 15:08:03 +02:00
grischka
b1697be691 change tcc_add/get_symbol to use void* 2009-04-18 15:08:02 +02:00
grischka
795f67428e alternative int tcc_relocate(TCCState *s1, void *ptr); 2009-04-18 15:08:02 +02:00
bellard
200b58dad8 initial implementation of -E option 2006-10-16 19:44:00 +00:00
bellard
45466d2df6 output format support 2004-10-23 22:49:08 +00:00
bellard
f8d0241764 changed tcc_get_symbol() prototype 2003-07-20 19:19:58 +00:00
bellard
356fa0c3bb added tcc_set_warning() - c++ include support 2003-04-26 20:51:42 +00:00
bellard
05a919e29f added better error support 2002-11-02 14:14:08 +00:00
bellard
d8ef07df04 added tcc_relocate() and tcc_get_symbol() 2002-09-08 22:46:32 +00:00
bellard
f5b9220b60 added tcc_add_sysinclude_path() 2002-08-18 13:24:03 +00:00
bellard
b2834b35b5 api change 2002-07-24 22:12:38 +00:00
bellard
1e14c90c7a added libtcc 2002-05-13 22:58:22 +00:00