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- does not change signature of tcc_add_file
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Abusing filename[0] as type is just too much of a hack.
-- From 05364072042ff37904a7b0b14cdd85a1ea1ca11d
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- would parse linker args in two different places
- would mess up "tcc -v ..." output:
tcc -v test.c
-> test.c
+> test.c
- would use function "tcc_load_alacarte()" to do the contrary of
what its name suggests.
This reverts commit 19a169ceb896f78205bc23b847938c58f14d1dda.
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A patch is implemented as suggested in tinycc-devel mail list.
From: Reuben Thomas
Date: Thu, 31 Jul 2014 16:52:53 +0100
Subject: [PATCH] Add --{no,}-whole-archive support
I resurrected the patch supplied to the mailing list in 2009
Since --whole-archive is a useful flag to get tcc working with
autotools, and of course in its own right, I suggest you have a look
at the patch and see if it is acceptable. I cannot see any suggestion
that it was actively rejected last time round, just no evidence that
it was ever added.
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* Documentation is now in "docs".
* Source code is now in "src".
* Misc. fixes here and there so that everything still works.
I think I got everything in this commit, but I only tested this
on Linux (Make) and Windows (CMake), so I might've messed
something up on other platforms...
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Usage example: tcc -xc ex5.cgi
From a gcc docs:
You can specify the input language explicitly with the -x option:
-x language
Specify explicitly the language for the following input files
(rather than letting the compiler choose a default based on the file
name suffix). This option applies to all following input files until
the next -x option. Possible values for language are:
c c-header c-cpp-output
c++ c++-header c++-cpp-output
objective-c objective-c-header objective-c-cpp-output
objective-c++ objective-c++-header objective-c++-cpp-output
assembler assembler-with-cpp
ada
f77 f77-cpp-input f95 f95-cpp-input
java
-x none
Turn off any specification of a language, so that subsequent files
are handled according to their file name suffixes (as they are if -x
has not been used at all)
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Try "tcc -E -c tccasm.c -o tccasm.o"
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This replaces -> use instead:
-----------------------------------
- tcc_set_linker -> tcc_set_options(s, "-Wl,...");
- tcc_set_warning -> tcc_set_options(s, "-W...");
- tcc_enable_debug -> tcc_set_options(s, "-g");
parse_args is moved to libtcc.c (now tcc_parse_args).
Also some cleanups:
- reorder TCCState members
- add some comments here and there
- do not use argv's directly, make string copies
- use const char* in tcc_set_linker
- tccpe: use fd instead of fp
tested with -D MEM_DEBUG: 0 bytes left
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monolitic executable or library that contains all needed to compile programs, truly tinycc portable."
This reverts commit 59e18aee0e509a3ca75dbe6f909e18c1d17893d1.
tcc is being stabilized now in order to do a new release soon.
Therefore, such a change is not appropriate now.
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executable or library that contains all needed to compile programs, truly tinycc portable.
Tested under linux exec the "mk-it" shell script and you'll end up with a portable tinycc executable that doesn't depend on anything else.
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We are now compatible with the 0.9,25 version though. A special
value for the second (ptr) argument is used to get the simple
behavior as with the 0.9.24 version.
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- use {B} to substitute tcc_lih_path (instead of \b)
- expand CONFIG_TCC_CRTPREFIX in CONFIG_TCC_LIBPATHS
which fixes duplicate CONFIG_SYSROOT.
- put default CONFIG_SYSROOT ("") into tcc.h
- remove hack from commit db6fcce78f4d8ea25036dd6643e9fa83d8e52e5a
because $(tccdir)/include is already in sysincludes
- configure: error out for unrecognized options.
- win32/build-tcc.bat: put libtcc into base dir where it will
find lib/include automatically, and build libtcc_test example.
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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", ...)
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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...
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--
By by ... Detlef
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I moved the code to libtcc to prepare for a later tiny_ld
--
By by ... Detlef
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