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320 Commits

Author SHA1 Message Date
Daniel Glöckner
76b02c2a03 Futher changes to casts 
nocode_wanted can't be used to enforce constant expressions, as it is
set f.ex. by __builtin_constant_p.

A null pointer is unequal to a pointer to any object or function.
Assuming symbols always point to memory, a symbol+constant cast to bool
is always true.
 2008-11-30 07:21:49 +01:00
Daniel Glöckner
5fd6f7bd44 Fix get_tok_str wrt wide characters 
Fixes both, character constants and string literals.
 2008-11-30 07:21:46 +01:00
Daniel Glöckner
deb410710c Rewrote '?' for constants 
The condition is now cast to _Bool and it now works with return
types bigger than 32 bit.
 2008-11-30 07:21:42 +01:00
Daniel Glöckner
1b599ea7f8 Cast parameter of '!' to _Bool 2008-11-30 07:21:35 +01:00
Daniel Glöckner
2d9b5e0bb8 Rewrote casts 
Casting of constants was done only inside functions.
I restructured the code and used intermediate types (long double/long long)
for most conversions to have less ifs.

Please review.
There are lots of cases to take care of and lots of mistakes to make.
 2008-11-30 07:21:30 +01:00
grischka
83466c6151 line-numbers output for TCC -E 2008-11-30 07:21:01 +01:00
grischka
7bebf1f59a was hash, not link 2008-09-15 02:07:55 +02:00
Daniel Glöckner
a80acab4fc Display error on statement expressions with complex return type 
The return type of a statement expression (a GCC extention) may
involve elements on the symbol stack that have been put there by
the expression. These will be freed at the end of the expression
so that the calling block can not use them.

Contrary to the comment (written in 2003), this bug no longer shows
up in Valgrind, as freed symbols are now put onto a stack for later
reuse.
 2008-09-12 22:23:02 +02:00
Daniel Glöckner
3783b33508 Fix bitfields with non-int types and in unions 
The ISO C draft allow only signed/unsigned int and _Bool as base type
for bitfields. TinyCC ever since allowed a wider range of types, but
there were many bugs that shifted values when they shouldn't, etc..
The patch introduces a restriction to the layout of bitfields with
mixed types that makes it incompatible with GCC. In

struct {
  typeA x:1;
  typeB y:1;
};

y is combined with x in the same byte iff typeA is typeB (neglecting
signedness). This is done to avoid alignment issues and exceeding the
width of typeA.
 2008-09-12 22:23:01 +02:00
Daniel Glöckner
43a34d354a Force null pointer exception for code outside of a function 
TinyCC sometimes has problems to evaluate constant expressions at
compile time. This leads to code being generated outside of functions.
Without this patch some of these bugs are not caught, because
cur_text_section still points to the section of the last function.
Before the first function cur_text_section is uninitialized.
Setting cur_text_section to a null pointer should make TinyCC die in
all cases.
 2008-09-12 22:23:00 +02:00
Daniel Glöckner
5a92536cea Optimize arithmetic with pointer to value on stack + constant 2008-09-12 22:23:00 +02:00
Daniel Glöckner
e263ee3cbf Fix gv for long longs 
long long a();
long long b() {
  return a();
}

At the end of b there will be some useless register shuffling.
This is because return wants to have the result of a in REG_IRET.
gv checks if this is the case for BOTH registers of the long long.
After this test it uses REG_LRET for the second register if the
first is supposed to be REG_IRET. In other cases it uses RC_INT.

The patch compares the second register against the class it will
have in the end instead of the register class the first register
will have.

At this point I would like to remind those who pick up the patches
that there are two other mails by me with uncommitted fixes:
http://lists.gnu.org/archive/html/tinycc-devel/2003-10/msg00044.html
http://lists.gnu.org/archive/html/tinycc-devel/2008-08/msg00007.html

  Daniel
 2008-09-12 22:22:59 +02:00
Daniel Glöckner
256f6e6200 A prefix for default library/include search paths 
This patch is useful for cross compilers. Without this patch tcc
tries to use the host's libraries, crt*.o and include files.
The patch prepends a string to all default paths. The string can
be passed to configure with --sysroot=string.

  Daniel
 2008-09-12 22:22:58 +02:00
Daniel Glöckner
12265da6cd Runtime lib functions 
Yesterday I felt the urge to change a few things in TinyCC.
This is the first and biggest change of all of them.

- use __aeabi_*divmod functions in ARM EABI to make binaries depend
  solely on standardized library functions

- refactor ARM floating point <-> integer conversion a bit

- rename long long->float and shift library functions to correspond to
  the names used by GCC

- compile more tokens conditionally to reduce the size of TinyCC

The intention is primarily to allow users of the ARM target to use
libgcc (which is usually available as a shared library) instead of
libtcc1 (which can't be compiled for ARM due to lack of an inline
assembler).

Changing the EABI target to use the divmod functions in theory allows
to use it without libtcc1 on any (not necessarily GCC based) ARM EABI
system.

  Daniel
 2008-09-12 22:22:36 +02:00
grischka
2c6cd08bcc fix isidnum_table for CH_EOF (-1) 2008-09-12 02:36:05 +02:00
grischka
1300cec38c free_section bugfix 2008-09-12 02:36:01 +02:00
grischka
f9bf48d643 release loaded dlls cleanly (Sam K) 2008-05-05 22:40:49 +00:00
grischka
96bd8f2b25 enable pe-output from libtcc (Shmuel Zeigerman) 2008-05-05 22:39:43 +00:00
grischka
f2698687fb fix options in C scripts after -run 2008-04-27 18:50:35 +00:00
grischka
5247bbc2f0 fix stabstr with linked objects 2008-04-27 18:49:31 +00:00
grischka
23594b6980 enable multiple states and fix minor memory leaks 2008-04-27 18:47:35 +00:00
grischka
f22e961f80 update manual, changelog 2008-03-31 19:50:58 +00:00
grischka
a327c7a552 added verbosity levels (-vv -vvv) 2008-03-31 19:49:14 +00:00
grischka
4d9aaacc85 Accept standard input as an inputstream (Hanzac Chen) 2008-03-31 18:42:56 +00:00
grischka
9bcc0b970b Add -soname linker option (Marc Andre Tanner) 2008-03-25 21:04:47 +00:00
grischka
6ed868c51c Enable -B option for library path on win32 2008-03-08 20:00:56 +00:00
grischka
3667408a57 Just warn about unknown directives, define __STDC_VERSION__=199901L 2008-01-16 20:16:35 +00:00
grischka
5342b32eef Switch to newer tccpe.c (includes support for resources) 2007-12-19 17:36:42 +00:00
grischka
adb1456472 Handle backslashes within #include, #error, #warning 2007-12-17 19:35:15 +00:00
grischka
6c96c41ee4 Import changesets (part 4) 428,457,460,467: defines for openbsd etc. 2007-12-16 18:24:44 +00:00
grischka
34140dd627 Use _WIN32 for a windows hosted tcc and define it for the PE target. 2007-12-13 19:07:19 +00:00
grischka
f99d3de221 Import 409,410: ARM EABI by Daniel Glckner 2007-12-04 20:38:09 +00:00
grischka
2de1b2d14c Some in-between fixes (See Changelog for details). 2007-11-25 22:14:35 +00:00
grischka
d778bde7f9 Import more changesets from Rob Landley's fork (part 2) 2007-11-21 17:16:31 +00:00
grischka
54bf8c0556 Import some changesets from Rob Landley's fork (part 1) 2007-11-14 17:34:30 +00:00
bellard
fb2c34f8cd fixed sign extension in some type conversions (Dave Dodge) 2006-10-28 14:47:39 +00:00
bellard
52b7254b9c fixed multiple typedef specifiers handling 2006-10-28 14:28:02 +00:00
bellard
0bea5c7f21 workaround for function pointers in conditional expressions (Dave Dodge) 2006-10-28 14:15:37 +00:00
bellard
24a19cc37e discard type qualifiers when comparing function parameters (Dave Dodge) 2006-10-28 14:13:28 +00:00
bellard
3b8cd565be fixed multiple concatenation of PPNUM tokens (initial patch by Dave Dodge) 2006-10-28 14:05:19 +00:00
bellard
200b58dad8 initial implementation of -E option 2006-10-16 19:44:00 +00:00
bellard
62c5a5466a fixed parsing of function parameters 2005-09-03 22:51:34 +00:00
bellard
7bc5e51847 anonymous union/struct support (Filip Navara) 2005-09-03 22:33:53 +00:00
bellard
e9c64e3f47 windows style fastcall (Filip Navara) 2005-09-03 22:21:22 +00:00
bellard
81f957ae09 normalized slashes in paths (Filip Navara) 2005-09-03 22:18:51 +00:00
bellard
6f8b8887b1 added support for win32 wchar_t (Filip Navara) 2005-09-03 21:54:47 +00:00
bellard
44738b516a fixed function type check 2005-09-03 21:07:35 +00:00
bellard
b0b8ac13ce mark executable sections as executable when running in memory 2005-09-03 18:31:43 +00:00
bellard
4d7eadb2fa preprocessor function macro parsing fix (grischka) - disabled -fleading-underscore for win32 2005-06-17 22:05:58 +00:00
bellard
f6db2edc40 added -f[no-]leading-underscore - '@' symbol for asm 2005-06-15 22:32:29 +00:00
bellard
fe9b1f60ce win32 merge (grischka) 2005-04-17 13:15:54 +00:00
bellard
4821702fb4 win32 merge 2005-04-14 23:49:21 +00:00
bellard
0bca832c18 #pragma pack support (grischka) 2005-04-13 21:30:51 +00:00
bellard
8f2d519203 #include_next support (Bernhard Fischer) 2005-04-10 22:18:53 +00:00
bellard
2c538d7a2b initial PE format support 2005-04-10 21:46:58 +00:00
bellard
fc72e41a55 better gcc compatibility (Jon Griffiths) 2004-12-16 22:19:28 +00:00
bellard
48c85f1b15 optimisations: hash table for include file search, pool for symbol allocation - sympler token string allocation - '-b' fix with '-run' option 2004-11-07 15:45:19 +00:00
bellard
1d0e5e8b01 stack full fix 2004-11-02 21:55:13 +00:00
bellard
1e1d3ff687 packed attribute support 2004-10-29 23:55:13 +00:00
bellard
736b565766 fixed const and volatile function parameters typing - fixed string parsing when skipping code 2004-10-28 21:14:30 +00:00
bellard
6b52984ce4 added _Bool in bit-fields 2004-10-27 21:42:06 +00:00
bellard
c9c05ca5f0 copyright update 2004-10-27 21:38:03 +00:00
bellard
59c3563827 do not generate code for unused inline functions - fixed long long code gen bug - added --oformat linker option 2004-10-23 22:52:05 +00:00
bellard
9668499b9f primitive fastcall functions support - -fno-common option - -Ttext linker option - bit field fixes - section alignment fixes 2004-10-18 00:18:20 +00:00
bellard
13affef3f1 win32 configure 2004-10-07 21:11:43 +00:00
bellard
c50af8399d fixed __LINE__ token type 2004-10-07 20:15:50 +00:00
bellard
ec7d36326d C67 COFF executable format support (TK) 2004-10-05 22:33:55 +00:00
bellard
6e5b1cc43a ARM fixes (Daniel Glockner) 2004-10-04 22:19:21 +00:00
bellard
79c72b2419 initial TMS320C67xx support (TK) 2004-10-04 21:57:35 +00:00
bellard
df36de6507 fixes for dietlibc 2004-10-02 14:11:28 +00:00
bellard
22d8df96c6 comment parsing fix - bitfields partial fix 2004-10-02 13:48:50 +00:00
bellard
fe203057c2 fixed assignment of const struct in struct 2003-10-17 20:59:15 +00:00
bellard
114883e078 added -funsigned-char, -fsigned-char and -Wimplicit-function-declaration 2003-10-17 20:43:47 +00:00
bellard
4df5bd2eb0 ARM target support (Daniel Glockner) - allow unsigned char as default on ARM (Daniel Glockner) - fixed small ld script support (Daniel Glockner) 2003-10-14 22:15:56 +00:00
bellard
bef8703f77 added arguments to -run - fixed libc linking when running in memory - output a warning instead of an error if invalid escaped sequence in character 2003-10-04 21:23:51 +00:00
bellard
d369a77647 unbounded section name (might be useful when section name contains function name for g++ linkonce sections) 2003-10-04 14:41:18 +00:00
bellard
c5ce5eaeda fixed -w option - doc update (thanx to Romain Francoise) 2003-10-04 13:04:47 +00:00
bellard
9c1106d854 added -w option 2003-09-19 20:35:50 +00:00
bellard
f8d0241764 changed tcc_get_symbol() prototype 2003-07-20 19:19:58 +00:00
bellard
c5959b77b4 fixed typdefed type parsing (Mauro Persano) 2003-07-20 18:44:29 +00:00
bellard
7b940fcb1b reject abstract declarators in function definition (Mauro Persano) 2003-07-20 12:40:53 +00:00
bellard
21d2d99bdc suppressed warning for const function parameters 2003-06-02 20:32:30 +00:00
bellard
d0476a0e2e help update 2003-05-24 16:21:09 +00:00
bellard
98713a6be3 added -rdynamic support 2003-05-24 15:46:29 +00:00
bellard
8f5e44a439 changed license to LGPL 2003-05-24 14:11:17 +00:00
bellard
638e666c42 fixed zero arg macro parse 2003-05-18 18:48:33 +00:00
bellard
6cdf6f88d7 fixed macro argument substitution 2003-05-18 17:16:20 +00:00
bellard
c4e6b2e9be alacarte linking (Dave Long) 2003-04-28 22:06:38 +00:00
bellard
2b64f2f570 added -nostdlib 2003-04-27 11:45:01 +00:00
bellard
7828683e60 added __builtin_constant_p() and __builtin_types_compatible_p() support 2003-04-26 21:28:09 +00:00
bellard
9791bfaf48 more precise C type check support (const warnings) - added generic -W option support 2003-04-26 20:49:46 +00:00
bellard
410fc57ba0 default output object filename is basename of input filename (same behaviour as gcc) 2003-04-16 21:35:02 +00:00
bellard
214ccccea7 simpler function call API 2003-04-16 21:16:20 +00:00
bellard
c5ab452d64 switch label parse fix 2003-04-14 22:23:36 +00:00
bellard
85fa15e64c compile fix 2003-04-13 22:42:15 +00:00
bellard
40987541dc added __TIME__ and __DATE__ support - added -v and -run options 2003-04-13 21:54:03 +00:00
bellard
5647993e79 configure support 2003-04-13 19:49:30 +00:00
bellard
f46a02a360 fixed macro function bug 2003-04-13 18:32:37 +00:00
bellard
cab6018913 fixed comment parsing 2003-04-13 18:05:51 +00:00
bellard
0c618f4b7f sanitized string and character constant parsing 2003-04-13 17:37:14 +00:00
bellard
d6819c2c36 comment fixes (Peter Lund) 2003-04-13 14:35:27 +00:00
bellard
73acbe2413 function parameters must be converted to pointer of functions 2003-04-13 14:30:32 +00:00
bellard
60b9a1aa38 better _Bool lvalue support 2003-04-13 14:11:34 +00:00
bellard
eed54d6bfb struct syntax fix 2003-04-13 14:03:18 +00:00
bellard
8e40dd90bb macro opt - asm support - new option parsing - supressed IL code 2003-01-06 20:21:08 +00:00
bellard
4df76253ad FreeBSD fixes - file type guessing - glibc2.2 fixes - ELF align issue 2002-12-08 14:35:31 +00:00
bellard
abf909e1ac added static bit fields init - version change - #error and #warning fix - support aligned attribute without parameter 2002-11-24 16:00:08 +00:00
bellard
b9d9425993 fixed structure type test - fixed enum parsing - added warning for int/ptr conversions instead of error 2002-11-24 14:56:25 +00:00
bellard
7b2721ff07 added empty structs support - changed double align to 4 (i386 default ABI) - added align support for structs - added GCC defines for basic types 2002-11-24 14:18:17 +00:00
bellard
0841db04c5 fixed structure init without {} - fixed function declaration parse 2002-11-23 23:56:12 +00:00
bellard
ab9973c843 optimized unary() - fix long long signed comparisons 2002-11-23 23:12:26 +00:00
bellard
0adc5a8921 fixed line numbering 2002-11-23 22:35:28 +00:00
bellard
a9f08655ac expression optimization 2002-11-23 22:26:46 +00:00
bellard
9e180474f0 optimized token strings - optimized token hashing 2002-11-23 22:02:40 +00:00
bellard
8901fbeef1 parsing optimizations 2002-11-23 18:15:17 +00:00
bellard
b81d4ba6b3 prepared parser for direct use of file->buf_ptr - faster comment parsing 2002-11-22 23:28:06 +00:00
bellard
cdcfed9737 restored include file optimization - added static on all globals 2002-11-22 22:16:30 +00:00
bellard
2956bd85cd suppressed ch1 and preparser 2002-11-22 18:12:41 +00:00
bellard
e926c359bb error message fixes - CH_EOB is now '\' 2002-11-22 14:43:38 +00:00
bellard
2f219d8702 use CH_EOB 2002-11-22 14:12:28 +00:00
bellard
63965fc585 further parse optimizations 2002-11-22 13:37:52 +00:00
bellard
5286d3d84c suppressed secondary hash tables - began parsing optimization 2002-11-20 00:29:04 +00:00
bellard
9620fd18e4 added CType structure for type storage - supressed define hash table - added time dump in bench 2002-11-18 21:46:44 +00:00
bellard
804d0c8d41 added computed gotos - better runtime error handling 2002-11-03 00:43:55 +00:00
bellard
43f30315f9 added alignof and typeof - better sizeof support - fixed get_tok_str() for TOK_PPNUM 2002-11-02 20:45:52 +00:00
bellard
c0180c4e5f added correct ## handling : added TOK_PPNUM token 2002-11-02 17:02:31 +00:00
bellard
c62792e6aa ignore some gcc options - removed many memory leaks - suppressed many global variables 2002-11-02 14:12:32 +00:00
bellard
d8ef07df04 added tcc_relocate() and tcc_get_symbol() 2002-09-08 22:46:32 +00:00
bellard
8ecc9cd789 macro optimization - string constant optimisation 2002-09-08 21:55:47 +00:00
bellard
ab4da04aa9 added include file optimization 2002-09-08 19:34:32 +00:00
bellard
509fa60368 force #if #endif match in same file 2002-09-08 16:14:57 +00:00
bellard
405c88106d fixed bound checking for structures - fixed ?: type handling - fixed '--' parsing 2002-09-08 12:42:36 +00:00
bellard
44b19defc2 fixed octal char const parsing - better __FUNCTION__ handling - handling of static libraries in case of memory compilation 2002-08-31 12:43:39 +00:00
bellard
6dd6a026c3 better command line parsing - added -r option 2002-08-30 22:46:35 +00:00
bellard
d2115bfb27 added symbol + relocation handling 2002-08-29 23:05:59 +00:00
bellard
46803f05e0 fixed local extern handling - fixed '!' with symbols 2002-08-29 21:57:41 +00:00
bellard
41391fbb20 added linux define - added __FUNCTION - fixed spaces parsing - defined special macros 2002-08-29 21:16:24 +00:00
bellard
f946dffd33 suppressed section_ptr - fixed constant string allocation 2002-08-18 14:34:57 +00:00
bellard
53834650fb moved ELF stuff to tccelf.c - fixed #include and #line parsing - removed size limit on strings - added support for bound checking in generated executables - fixed -I include order - fixed incorrect function displayed in runtime error - fixed lvalue type when saved in local stack 2002-08-18 13:22:55 +00:00
bellard
7ac43f6d19 better DLL generation - added size to all ELF symbols - dynamic hash table size 2002-07-27 23:08:04 +00:00
bellard
18e40e1a25 add stripping if not debug mode - moved debug and bound check init 2002-07-27 15:38:21 +00:00
bellard
519ec30bcf added __start_x and __stop_x symbol generation - fp_hw fix for dynamic executables 2002-07-27 15:18:33 +00:00
bellard
9b48237795 use data_offset in sections instead of pointer to ease section reallocation - relocated .stabs and .bounds sections - fixed char constants casts - fixed implicit cast to unary plus - fixed type for string constants 2002-07-27 14:05:37 +00:00
bellard
540cd6fde7 fixed preprocessor expression parsing 2002-07-26 22:59:19 +00:00
bellard
b12e91aa01 fixed command line help - added -B option - moved bcheck.c outside of tcc 2002-07-24 22:10:59 +00:00
bellard
6cdecbe4e6 added runtime library - fixed more relocations 2002-07-22 23:37:39 +00:00
bellard
9051cc21af better elf output - generalized dynamic array use 2002-07-22 00:20:38 +00:00
bellard
7b54a53e08 added archive support - better ELF output - fixed symbol relocation - added COMMON symbol handling 2002-07-18 00:51:11 +00:00
bellard
a50e58e5ba more consistent command line handling 2002-07-15 22:17:02 +00:00
bellard
61a1599052 added object file reading support 2002-07-15 21:33:00 +00:00