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Author SHA1 Message Date
Thomas Preud'homme
f715207249 arm-gen.c: fix var initialization in gfunc_call 
Fix initialization of args_size before doing register allocation.
When adding hardfloat calling convention the initialization stopped
being performed when !defined (TCC_ARM_EABI).
 2013-02-04 11:01:58 +01:00
Daniel Glöckner
61a4fd1d6e arm: force rounding towards zero on cast to integer with VFP 
Cast to integer should not be affected by the current rounding mode
as set by fesetround.
 2013-02-04 09:17:01 +01:00
Daniel Glöckner
f7f6025bd1 arm: fix conversion from float/double to signed integer with VFP 
The signed flag was not encoded in the instruction.
 2013-02-03 23:47:52 +01:00
Daniel Glöckner
506193724f arm: fix conversion from integer to float/double with VFP 
The source register was not encoded in the instruction.
 2013-02-03 17:51:33 +01:00
Thomas Preud'homme
6f4983af5b Revert "Add predictability in CType initialization." 
This reverts commit 93785149ed.
 2013-01-31 13:43:04 +01:00
Thomas Preud'homme
ae33c30b49 Revert "Don't call elf_hash on NULL value" 
This reverts commit 505329b5b3.
 2013-01-31 13:43:04 +01:00
grischka
2f6b8469cc safety: replace occurrences of strcpy by pstrcpy 2013-01-31 13:23:19 +01:00
Thomas Preud'homme
370547a550 Revert "Check whether structure fields have a type" 
This reverts commit 981eb84d8a.
 2013-01-31 13:02:04 +01:00
Thomas Preud'homme
981eb84d8a Check whether structure fields have a type 2013-01-31 12:32:31 +01:00
Domingo Alvarez Duarte
505329b5b3 Don't call elf_hash on NULL value 
Make sur elf_hash is never invoked with a NULL value.

Signed-off-by: Thomas Preud'homme <robotux@celest.fr>
 2013-01-31 12:07:20 +01:00
Domingo Alvarez Duarte
93785149ed Add predictability in CType initialization. 
Initialize the ref field to 0 when manipulating a CType.

Signed-off-by: Thomas Preud'homme <robotux@celest.fr>
 2013-01-31 12:04:10 +01:00
Thomas Preud'homme
1b1e7ee1fd Fix cross-compilation out-of-tree build 
Add tcc.c as a prerequesite of the %-tcc$(EXESUF) target and compile $<
instead of tcc.c to make sure tcc.c is search in directories specified
by VPATH.
 2013-01-30 19:39:29 +01:00
grischka
913cd6270b Changelog: cleanup 2013-01-30 18:50:02 +01:00
grischka
828ccde9fc arm: define TCC_ARM_VERSION for cross compiler 2013-01-30 18:39:36 +01:00
grischka
b7e75ccdb0 tccpe: no debug, no stabs 2013-01-30 18:39:26 +01:00
grischka
17cf0dcf70 configure: use relative paths for in-tree build 
Also
- move CPPFLAGS to Makefile
- Use top_srcdir in lib/Makefile
 2013-01-30 18:39:09 +01:00
Thomas Preud'homme
6ccee6edb3 Add my copyright for changes in arm-gen.c 2013-01-30 17:34:19 +01:00
Thomas Preud'homme
5fa135f9eb Changelog update 2013-01-30 17:13:40 +01:00
Thomas Preud'homme
01e1eecdbe Update Changelog 2013-01-30 17:07:18 +01:00
Thomas Preud'homme
52947e5844 Favor arm hardfloat over arm softfloat. 
Favor ARM hardfloat over ARM softfloat calling convention. In
particular, this solve the problem of the raspbian distribution where
the softfloat ld.so pathname (lib/ld-linux.so.3) is actually a symlink
to the hardfloat ld.so pathname (/lib/arm-linux-gnueabihf/ld-2.13.so).
 2013-01-29 18:15:23 +01:00
Thomas Preud'homme
bcac413c30 Fix overflow detection in ARM relocation 
Fix overflow detection for R_ARM_CALL, R_ARM_PC24, R_ARM_JUMP24 and
R_ARM_PLT32 relocations on ARM. 26 bits means 25 bits for positive and
negative offsets !
 2013-01-28 19:13:25 +01:00
Thomas Preud'homme
0f81512d7d Fix stack alignment on 8 bytes at function call 
Ensure stack pointer is correctly adjusted in prolog to be aligned on 8
bytes after the change of frame linking.
 2013-01-27 01:08:01 +01:00
Thomas Preud'homme
f3e5649150 Don't do builtin_frame_address test with ARM gcc 
gcc fails the builtin_frame_address test on ARM so we disable it. As a
consequence, the diff between gcc and tcc's output is unecessarily
bigger. Given the big size of the diff currently, this doesn't make a
big difference but may allow to detect a regression in tcc's
implementation of builtin_frame_address.
 2013-01-26 20:31:14 +01:00
Thomas Preud'homme
f63c750942 Organize frames in a real linked list on ARM 
Change the linking of the frames on ARM. Instead of having fp points 12
bytes above where the old fp is stored, let fp points where the old fp
is stored. That is, we switch from:

|   .    |
|   .    |
|   .    |
|        |
| params | <-- fp
 --------
| oldlr  |
 --------
| oldip  |
 --------
| oldfp  |
 --------

to:

|   .    |
|   .    |
|   .    |
|        |
| params |
 --------
| oldlr  |
 --------
| oldip  |
 --------
| oldfp  | <-- fp
 --------
 2013-01-26 20:09:04 +01:00
Thomas Preud'homme
de35a3389f Use gcc to generate tcctest.gcc 2013-01-25 20:14:10 +01:00
Thomas Preud'homme
f8cde52984 Link STT_GNU_IFUNC into STT_FUNC in executable. 
Indirect functions shall have STT_FUNC type in executable dynsym
section. Indeed, a dlsym call following a lazy resolution would pick the
symbol value from the executable dynsym entry. This would contain the
address of the function wanted by the caller of dlsym instead of the
address of the function that would return that address.
 2013-01-25 20:06:51 +01:00
grischka
b89793d10a win32: _mingw.h: do not undef NULL 
Not wise if stddef.h was already included. This is related to commit

    3aa26a794e

Instead hack stddef.h to have identical definition and thus
avoid the issue mentionned there.
 2013-01-24 19:49:58 +01:00
Thomas Preud'homme
6b6eea60f3 Fix [f]getc return value usage in 40_stdio test 
Store [f]getc return value into an int instead of char, as per
prototype. This fix an issue when char is unsigned (as is on arm for
both tcc and gcc).
 2013-01-24 10:55:18 +01:00
grischka
c5892fe4f5 Revert "Optimize vswap()" 
This reverts commit 63193d1794.

Had some problems (_STATIC_ASSERT) and was too ugly anyway.
For retry, I'd suggest to implement a general function
    static inline void memswap (void *p1, void* p2, size_t n);
and then use that.  If you do so, please keep the original code
as comment.
 2013-01-14 18:41:37 +01:00
grischka
2daf8b96a8 Revert mistake in "win32: malloc.h: fix win32 ... _STATIC_ASSERT" 
from commit fc574f1498.

The files from include are copied to win32/include with make
install or build-tcc.bat.
 2013-01-14 18:41:36 +01:00
Thomas Preud'homme
f7b417723e Fix out-of-tree build with relative path to root 
Fix path of Makefile symlinks in a out-of-tree build where the root
directory of the source is given as a relative path.
 2013-01-14 18:18:27 +01:00
Thomas Preud'homme
a4e630c7d9 Install libtcc.h when invoking make install 
This fix commit e79281f58e
 2013-01-14 18:16:17 +01:00
Thomas Preud'homme
8c56b0cf90 Revert "Added what I call virtual io to tinycc this way we can make a monolitic executable or library that contains all needed to compile programs, truly tinycc portable." 
This reverts commit 59e18aee0e.
tcc is being stabilized now in order to do a new release soon.
Therefore, such a change is not appropriate now.
 2013-01-14 17:34:07 +01:00
Thomas Preud'homme
60a3ff5f2c Revert "pe: fix tcc not linking to user32 and gdi32" 
This reverts commit 943574aba5.
The empty string in "libs" was intended behavior, as can be seen from
the "if (0 == *p)" below.
 2013-01-14 17:21:06 +01:00
Thomas Preud'homme
5e7954b408 Stop setting -Wno-unused-result switch in Makefile 
This commit revert commit 061b5799cc and
subsequent commits to detect whether -Wno-unused-result is supported or
not by the compiler used to compile tcc. No warning about unused results
is issued in a normal build and thus this switch is only needed if
calling make with extra switches in CFLAGS or CPPFLAGS. It should thus
be added with the extra switches when calling make and not in the
Makefile.
 2013-01-13 23:38:33 +01:00
Thomas Preud'homme
ea583f7b8a Fix C99ism in vswap() 
Declare vtopl in vswap at the beginning of the function before any
assignments. Doing otherwise means C99 is assumed when compiling.
 2013-01-13 23:38:33 +01:00
mingodad
59e18aee0e Added what I call virtual io to tinycc this way we can make a monolitic 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.
 2013-01-11 00:04:38 +00:00
grischka
0a8c7d143e Fix "Optimize cstr_reset() to only reset string to empty" 
This fixes commit 8eb92e6052

Remove memory leak.
 2013-01-06 17:21:33 +01:00
grischka
2358b378b3 tccpp: alternative fix for #include_next infinite loop bug 
This replaces commit 3d409b0889

- revert old fix in libtcc.c
- #include_next: look up the file in the include stack to see
  if it is already included.
Also:
- streamline include code
- remove 'type' from struct CachedInclude (obsolete because we check
  full filename anyway)
- remove inc_type & inc_filename from struct Bufferedfile (obsolete)
- fix bug with TOK_FLAG_ENDIF not being reset
- unrelated: get rid of an 'variable potentially uninitialized' warning
 2013-01-06 17:20:44 +01:00
Thomas Preud'homme
e92dbe4686 Stop returning 0 in cmp_comparison_test 
cmp_comparison_test has no return value and should thus not return 0.
 2013-01-06 12:26:53 +01:00
Thomas Preud'homme
eb028a8f42 Honor CC when testing for -Wno-unused-result 
The compiler used for compiling tcc is the one referenced in the
CC variable. As such, the check for -Wno-unused-result presence should
be done on CC.
 2013-01-06 12:22:56 +01:00
Roy
fc574f1498 win32: malloc.h: fix win32 tcc-tcc complication by correcting _STATIC_ASSERT, ideas from mingw-w64 changeset 4293 
stdarg.h, stddef.h: _mingw.h needs them
 2012-12-31 08:59:50 +08:00
Kirill Smelkov
63193d1794 Optimize vswap() 
vswap() is called often enough and shows in profile and it was easy to
hand optimize swapping vtop[-1] and vtop[0] - instead of large (28 bytes
on i386) tmp variable and two memory to memory copies, let's swap areas
by longs through registers with streamlined assembly.

For

    $ ./tcc -B. -bench -DONE_SOURCE -DCONFIG_MULTIARCHDIR=\"i386-linux-gnu\" -c tcc.c

before:

 # Overhead      Command        Shared Object                                          Symbol
 # ........  ...........  ...................  ..............................................
 #
     15.19%          tcc  tcc                  [.] next_nomacro1
      5.19%          tcc  libc-2.13.so         [.] _int_malloc
      4.57%          tcc  tcc                  [.] next
      3.36%          tcc  tcc                  [.] tok_str_add2
      3.03%          tcc  tcc                  [.] macro_subst_tok
      2.93%          tcc  tcc                  [.] macro_subst
      2.53%          tcc  tcc                  [.] next_nomacro_spc
      2.49%          tcc  tcc                  [.] vswap
      2.36%          tcc  libc-2.13.so         [.] _int_free

       │    ST_FUNC void vswap(void)
       │    {
  1,96 │      push   %edi
  2,65 │      push   %esi
  1,08 │      sub    $0x20,%esp
       │        SValue tmp;
       │
       │        /* cannot let cpu flags if other instruction are generated. Also
       │           avoid leaving VT_JMP anywhere except on the top of the stack
       │           because it would complicate the code generator. */
       │        if (vtop >= vstack) {
  0,98 │      mov    0x8078cac,%eax
       │      cmp    $0x8078d3c,%eax
  1,18 │   ┌──jb     24
       │   │        int v = vtop->r & VT_VALMASK;
  1,08 │   │  mov    0x8(%eax),%edx
  0,78 │   │  and    $0x3f,%edx
       │   │        if (v == VT_CMP || (v & ~1) == VT_JMP)
  0,78 │   │  cmp    $0x33,%edx
  0,69 │   │↓ je     54
  0,59 │   │  and    $0xfffffffe,%edx
  0,49 │   │  cmp    $0x34,%edx
  0,29 │   │↓ je     54
       │   │            gv(RC_INT);
       │   │    }
       │   │    tmp = vtop[0];
  1,08 │24:└─→lea    0x4(%esp),%edi
  0,39 │      mov    $0x7,%ecx
       │      mov    %eax,%esi
 14,41 │      rep    movsl %ds:(%esi),%es:(%edi)
       │        vtop[0] = vtop[-1];
  9,51 │      lea    -0x1c(%eax),%esi
  1,96 │      mov    $0x7,%cl
       │      mov    %eax,%edi
 17,06 │      rep    movsl %ds:(%esi),%es:(%edi)
       │        vtop[-1] = tmp;
 10,20 │      mov    0x8078cac,%edi
  2,35 │      sub    $0x1c,%edi
  0,78 │      lea    0x4(%esp),%esi
       │      mov    $0x7,%cl
 15,20 │      rep    movsl %ds:(%esi),%es:(%edi)
       │    }
  9,90 │      add    $0x20,%esp
  2,25 │      pop    %esi
  1,67 │      pop    %edi
  0,69 │      ret

after:

 # Overhead      Command        Shared Object                                          Symbol
 # ........  ...........  ...................  ..............................................
 #
     15.27%          tcc  tcc                  [.] next_nomacro1
      5.08%          tcc  libc-2.13.so         [.] _int_malloc
      4.57%          tcc  tcc                  [.] next
      3.17%          tcc  tcc                  [.] tok_str_add2
      3.12%          tcc  tcc                  [.] macro_subst
      2.99%          tcc  tcc                  [.] macro_subst_tok
      2.43%          tcc  tcc                  [.] next_nomacro_spc
      2.32%          tcc  libc-2.13.so         [.] _int_free

      . . .

      0.71%          tcc  tcc                  [.] vswap

       │    ST_FUNC void vswap(void)
       │    {
  7,22 │      push   %eax
       │        /* cannot let cpu flags if other instruction are generated. Also
       │           avoid leaving VT_JMP anywhere except on the top of the stack
       │           because it would complicate the code generator. */
       │        if (vtop >= vstack) {
 11,34 │      mov    0x8078cac,%eax
  2,75 │      cmp    $0x8078d3c,%eax
  0,34 │   ┌──jb     20
       │   │        int v = vtop->r & VT_VALMASK;
  0,34 │   │  mov    0x8(%eax),%edx
  8,93 │   │  and    $0x3f,%edx
       │   │        if (v == VT_CMP || (v & ~1) == VT_JMP)
  2,06 │   │  cmp    $0x33,%edx
  2,41 │   │↓ je     74
  2,41 │   │  and    $0xfffffffe,%edx
  0,34 │   │  cmp    $0x34,%edx
  2,41 │   │↓ je     74
       │   │        vtopl[-1*VSIZEL + i] = tmpl;    \
       │   │      } do {} while (0)
       │   │
       │   │    VSWAPL(15); VSWAPL(14); VSWAPL(13); VSWAPL(12);
       │   │    VSWAPL(11); VSWAPL(10); VSWAPL( 9); VSWAPL( 8);
       │   │    VSWAPL( 7); VSWAPL( 6); VSWAPL( 5); VSWAPL( 4);
  2,06 │20:└─→mov    0x18(%eax),%edx
  1,37 │      mov    -0x4(%eax),%ecx
  2,06 │      mov    %ecx,0x18(%eax)
  1,37 │      mov    %edx,-0x4(%eax)
  2,06 │      mov    0x14(%eax),%edx
  2,06 │      mov    -0x8(%eax),%ecx
  2,41 │      mov    %ecx,0x14(%eax)
  3,09 │      mov    %edx,-0x8(%eax)
  3,09 │      mov    0x10(%eax),%edx
  1,72 │      mov    -0xc(%eax),%ecx
  2,75 │      mov    %ecx,0x10(%eax)
  1,72 │      mov    %edx,-0xc(%eax)
       │        VSWAPL( 3); VSWAPL( 2); VSWAPL( 1); VSWAPL( 0);
  2,41 │      mov    0xc(%eax),%edx
  2,41 │      mov    -0x10(%eax),%ecx
  2,41 │      mov    %ecx,0xc(%eax)
  0,69 │      mov    %edx,-0x10(%eax)
  1,72 │      mov    0x8(%eax),%edx
  0,69 │      mov    -0x14(%eax),%ecx
  1,03 │      mov    %ecx,0x8(%eax)
  1,37 │      mov    %edx,-0x14(%eax)
  1,37 │      mov    0x4(%eax),%edx
  0,69 │      mov    -0x18(%eax),%ecx
  3,09 │      mov    %ecx,0x4(%eax)
  2,06 │      mov    %edx,-0x18(%eax)
  1,37 │      mov    (%eax),%edx
  2,41 │      mov    -0x1c(%eax),%ecx
  1,37 │      mov    %ecx,(%eax)
  4,12 │      mov    %edx,-0x1c(%eax)
       │        }
       │
       │    #   undef VSWAPL
       │    #   undef VSIZEL
       │    }
  1,03 │      pop    %eax
  3,44 │      ret

Overal speedup:

    # best of 5 runs
    before: 8268 idents, 47203 lines, 1526763 bytes, 0.148 s, 319217 lines/s, 10.3 MB/s
    after:  8273 idents, 47231 lines, 1527685 bytes, 0.146 s, 324092 lines/s, 10.5 MB/s

Static ASSERT macro taken from CCAN's[1] build_assert[2] which is in
public domain.

[1] http://ccodearchive.net/
[2] http://git.ozlabs.org/?p=ccan;a=blob;f=ccan/build_assert/build_assert.h;h=24e59c44cd930173178ac9b6e101b0af64a879e9;hb=HEAD
 2012-12-21 20:46:26 +04:00
Kirill Smelkov
8eb92e6052 Optimize cstr_reset() to only reset string to empty, not call free() and later malloc() 
A CString could be reset to empty just setting its .size to 0.

If memory was already allocated, that would be remembered in
.data_allocated and .size_allocated and on consequent string
manipulations that memory will be used without immediate need to call
malloc().

For

    $ ./tcc -B. -bench -DONE_SOURCE -DCONFIG_MULTIARCHDIR=\"i386-linux-gnu\" -c tcc.c

after the patch malloc/free are called less often:

(tcc is run in loop; perf record -a sleep 10 && perf report)
before:

 # Overhead      Command       Shared Object                                      Symbol
 # ........  ...........  ..................  ..........................................
 #
     13.89%          tcc  tcc                 [.] next_nomacro1
      4.73%          tcc  libc-2.13.so        [.] _int_malloc
      4.39%          tcc  tcc                 [.] next
      2.94%          tcc  tcc                 [.] tok_str_add2
      2.78%          tcc  tcc                 [.] macro_subst_tok
      2.75%          tcc  libc-2.13.so        [.] free
      2.74%          tcc  tcc                 [.] macro_subst
      2.63%          tcc  libc-2.13.so        [.] _int_free
      2.28%          tcc  tcc                 [.] vswap
      2.24%          tcc  tcc                 [.] next_nomacro_spc
      2.06%          tcc  libc-2.13.so        [.] realloc
      2.00%          tcc  libc-2.13.so        [.] malloc
      1.99%          tcc  tcc                 [.] unary
      1.85%          tcc  libc-2.13.so        [.] __i686.get_pc_thunk.bx
      1.76%  kworker/0:1  [kernel.kallsyms]   [k] delay_tsc
      1.70%          tcc  tcc                 [.] next_nomacro
      1.62%          tcc  tcc                 [.] preprocess
      1.41%          tcc  libc-2.13.so        [.] __memcmp_ssse3
      1.38%          tcc  [kernel.kallsyms]   [k] memset
      1.10%          tcc  tcc                 [.] g
      1.06%          tcc  tcc                 [.] parse_btype
      1.05%          tcc  tcc                 [.] sym_push2
      1.04%          tcc  libc-2.13.so        [.] _int_realloc
      1.00%          tcc  libc-2.13.so        [.] malloc_consolidate

after:

 # Overhead      Command       Shared Object                                          Symbol
 # ........  ...........  ..................  ..............................................
 #
     15.26%          tcc  tcc                 [.] next_nomacro1
      5.07%          tcc  libc-2.13.so        [.] _int_malloc
      4.62%          tcc  tcc                 [.] next
      3.22%          tcc  tcc                 [.] tok_str_add2
      3.03%          tcc  tcc                 [.] macro_subst_tok
      3.02%          tcc  tcc                 [.] macro_subst
      2.59%          tcc  tcc                 [.] next_nomacro_spc
      2.44%          tcc  tcc                 [.] vswap
      2.39%          tcc  libc-2.13.so        [.] _int_free
      2.28%          tcc  libc-2.13.so        [.] free
      2.22%          tcc  tcc                 [.] unary
      2.07%          tcc  libc-2.13.so        [.] realloc
      1.97%          tcc  libc-2.13.so        [.] malloc
      1.70%          tcc  tcc                 [.] preprocess
      1.69%          tcc  libc-2.13.so        [.] __i686.get_pc_thunk.bx
      1.68%          tcc  tcc                 [.] next_nomacro
      1.59%          tcc  [kernel.kallsyms]   [k] memset
      1.55%          tcc  libc-2.13.so        [.] __memcmp_ssse3
      1.22%          tcc  tcc                 [.] parse_comment
      1.11%          tcc  tcc                 [.] g
      1.11%          tcc  tcc                 [.] sym_push2
      1.10%          tcc  tcc                 [.] parse_btype
      1.10%          tcc  libc-2.13.so        [.] _int_realloc
      1.06%          tcc  tcc                 [.] vsetc
      0.98%          tcc  libc-2.13.so        [.] malloc_consolidate

and this gains small speedup for tcc:

    # best of 5 runs
    before: 8268 idents, 47191 lines, 1526670 bytes, 0.153 s, 307997 lines/s, 10.0 MB/s
    after:  8268 idents, 47203 lines, 1526763 bytes, 0.148 s, 319217 lines/s, 10.3 MB/s
 2012-12-21 20:46:26 +04:00
Akim Demaille
e79281f58e build: fix out-of-tree install 
Makefile (install): Fix installation of headers.
Do not try to install twice libtcc.h, once should be enough.
 2012-12-21 14:23:28 +01:00
Akim Demaille
7667a8887a build: fix out-of-tree build 
* Makefile (TCC-VERSION): Use top_srcdir.
 2012-12-21 14:17:23 +01:00
Akim Demaille
8adfb4a419 build: simplify the makefiles 
* Makefile: use "else if" to improve readability.
 2012-12-21 14:17:16 +01:00
Akim Demaille
017bbbfee1 configure: support absolete out-of-tree builds 
configure: handle the case of absolute paths.
Reported by grishka.
 2012-12-21 13:57:22 +01:00
Akim Demaille
d7264e0218 configure: style changes 
* configure: use more here-documents.
 2012-12-21 13:49:15 +01:00
Akim Demaille
ba49862de6 configure: prefer here-documents 
* configure: use here-documents to improve readability and
reduce the clutter.
 2012-12-21 13:47:00 +01:00