Commit Graph

2132 Commits

Author SHA1 Message Date
Pavlas, Zdenek
7e7f2e5d1b bcheck: access fields of local structs w/o bcheck
Revert previous commit, this is probably a better fix.
2016-11-10 05:15:07 -08:00
Pavlas, Zdenek
550e861bf7 bcheck: add structs to local regions
int test()
{
  struct { int i; } s = { 42 };
  return s.i; // bound checked
}
2016-11-09 04:11:40 -08:00
Pavlas, Zdenek
cdf715a0b5 i386 + bcheck: fix __bound_local_new
With -b, this produces garbage. Code to call __bound_local_new
is put at wrong place, overwriting the regparam setup code.
Fix copied from x86_64-gen.c.

void __attribute__((regparm(3)))
fun(int unused)
{
  char local[1];
}
2016-11-09 01:04:45 -08:00
grischka
3054a76249 i386-gen: use EBX as 4th register
May be enabled/disabled by changing this line:
    #define USE_EBX 1
2016-10-19 19:22:15 +02:00
grischka
02642bc94c lib/libtcc1.c: cleanup
- remove #include dependencies from libtcc1.c
  for easier cross compilation
- clear_cache only on ARM
- error-message for mprotect failure
2016-10-19 19:21:36 +02:00
grischka
bfd1c08d6c tccrun/win64: cleanup runtime function table
- call RtlDeleteFunctionTable
  (important for multiple compilations)

- the RUNTIME_FUNCTION* is now at the beginning of the
  runtime memory.  Therefor when tcc_relocate is called
  with user memory, this should be done manually before
  it is free'd:
      RtlDeleteFunctionTable(*(void**)user_mem);
      [ free(user_mem); ]

- x86_64-gen.c: expand char/short return values to int
2016-10-19 19:21:27 +02:00
grischka
02919cd275 configure: --triplet= option, Makefile: cleanup 2016-10-17 23:24:10 +02:00
grischka
0be098929a tccpp_new/delete and other cleanups 2016-10-17 23:24:01 +02:00
Michael Matz
6fbcc14a5d system-hacks: define __GNUC__ for FreeBSD
FreeBSDs system headers contain unconditional usage of
macros like __aligned(x), which are only conditionally defined
in sys/cdefs.h (conditional on __GNUC__ or __INTEL_COMPILER).

Bug in FreeBSD, but as work-around we can define __GNUC__ which
picks up these defs.

[This also moves back the glibc defines we had before into the
non-BSD ifdef branch]
2016-10-17 01:08:29 +02:00
Michael Matz
68a7af632c x86-64: Fix long long bug
With the last improvements to lexpand it's now harmful
to use on native 64bit platforms when not necessary.  For gv_dup
it's not necessary there.  It can still be used with really
transforming a 64bit value into two 32bit ones.
2016-10-17 00:57:16 +02:00
grischka
d9b7f018ce i386: do not 'lexpand' into registers necessarily
Previously, long longs were 'lexpand'ed into two registers
always.

Now, it expands
- constants into two constants (lo-part, hi-part)
- variables into two lvalues with offset+4 for the hi-part.

This makes long long operations look a bit nicer.

Also: don't apply i386 'inc/dec' optimization if carry
generation is wanted.
2016-10-16 19:04:40 +02:00
grischka
6245db9fca tccgen/32bits: fix unsigned long long -> int cast
gen_cast() failed to truncate long long's if they
were unsigned, which was causing mess on the vstack.

There was a similar bug here
    tccgen: 32bits: fix PTR +/- long long
    ed15cddacd

Both were not visible until this patch
    tccgen: arm/i386: save_reg_upstack
    b691585785

I'd still assume that this patch is correct per se.

Also:
- remove 2x !nocode_wanted (we are already under a general
  "else if (!nocode_wanted)" clause above).
2016-10-16 11:03:57 +02:00
Christian Jullien
4ac0e1971e Actual complete name for DragonFly is 'DragonFly BSD'. 2016-10-16 06:12:55 +02:00
Christian Jullien
06db384f8a No 'Thread Storage Local' on FreeBSD with tcc. 2016-10-15 18:47:31 +02:00
Christian Jullien
f7bfa0970e Backslash was missing after reindentation to let code be < 80 col. 2016-10-15 18:13:01 +02:00
grischka
f3c1ea6c2d #define __GNUC__ = 2.1
__GNUC__ nowadays as macro seems to mean the "GNU C dialect"
rather than the compiler itself.  See also

  http://gcc.gnu.org/ml/gcc/2008-07/msg00026.html

This patch will probably cause problems of various kinds but
maybe we should try nonetheless.
2016-10-15 16:01:16 +02:00
grischka
4d247c00a3 tccgen/tccelf: move code from libtcc.c 2016-10-15 15:55:31 +02:00
Christian Jullien
3e32479594 Add more OpenBSD support. 2016-10-15 15:08:44 +02:00
Christian Jullien
70dec93f2b OpenBSD does not support -v option in rm command. 2016-10-15 14:59:52 +02:00
Christian Jullien
36759ddacf Start support of OpenBSD, tcc compiler can be produced from source tree 2016-10-15 14:50:17 +02:00
Christian Jullien
18a5d8188a World is not reduced to either Windows or Linux 2016-10-15 09:47:08 +02:00
Michael Matz
383f568a64 Fix misleading indentation 2016-10-14 17:46:04 +02:00
Michael Matz
682ecc1745 arm64: Fix -run
With -run the call instruction and a defined function can be
far away, if the function is defined in the executable itself,
not in the to be compiled code.  So we always need PLT slots
for -run, not just for undefined symbols.
2016-10-14 17:32:10 +02:00
Michael Matz
7600b03f35 arm64: Support PREL32 relocation
A PC-relative 32bit value is stored.
2016-10-14 16:47:43 +02:00
Michael Matz
c232af7ddb Support archives with 64 bit indices
Some systems started using SYM64 .a libraries, so start
supporting them.
2016-10-14 16:47:43 +02:00
grischka
ed15cddacd tccgen: 32bits: fix PTR +/- long long
Previously in order to perform a ll+ll operation tcc
was trying to 'lexpand' PTR in gen_opl which did
not work well.  The case:


    int printf(const char *, ...);
    char t[] = "012345678";

    int main(void)
    {
        char *data = t;
        unsigned long long r = 4;
        unsigned a = 5;
        unsigned long long b = 12;

        *(unsigned*)(data + r) += a - b;

        printf("data %s\n", data);
        return 0;
    }
2016-10-13 19:21:43 +02:00
Christian Jullien
8986bc8af4 Use ISO C string functions instead of obsolete BSD ones that used to be in strings.h. It allows more systems -- i.e. Windows -- to use those tests 2016-10-12 06:18:38 +02:00
Edmund Grimley Evans
07ca2df588 Use R_AARCH64_MOVW_UABS_G* instead of R_AARCH64_CALL26.
This is a work-around for TCC's linker, on AArch64, not building a PLT
when TCC is invoked with "-run". Fixing the linker should be possible:
it works on arm and x86_64, apparently.
2016-10-11 18:56:10 +01:00
Pavlas, Zdenek
7bd30a488a gcase() clean up
remove tail recursion, simplify
2016-10-11 02:05:02 -07:00
Edmund Grimley Evans
7dddd65b46 In gen_vla_sp_restore, use X30 rather than get_reg. 2016-10-10 20:15:57 +01:00
Edmund Grimley Evans
94d8d12c26 Fix handling of case_reg in switch statement.
The back end functions gen_op(comparison) and gtst() might allocate
registers so case_reg should be left on the value stack while they
are called and set again afterwards.

This bug fix was first applied as ff3f9aa (20 Feb 2015), but the fix
was reverted by fc0fc6a (21 Sep 2016, "switch: collect case ranges
first, then generate code"). Here the fix is updated for the new code.
2016-10-10 20:15:20 +01:00
Avi Halachmi (:avih)
5a0ca53a4a build: strip: unify win32 and use the configured $STRIP
- There's no need to force STRIP_BINARIES on windows since --enable-strip (at
  configure) already does exactly that, if one wants to.
- Use the contigured $STRIP instead of the native 'strip', useful when
  cross building tcc.
- 'make install-strip' now also strips libtcc.dll on windows (it already does
  so now with --enable-strip, and previously it always stripped it).

Summary of current strip options for all platforms:
- configure --enable strip -> 'install -s' for the binaries.
- make install-strip: installs and then configured $STRIP the binaries.
- Otherwise -> no stripping.
2016-10-10 15:17:58 +03:00
Avi Halachmi (:avih)
35b7bf9382 build: win: detect also mingw64 in msys2 setup
MSYS2 installs 3 environments, with uname (e.g. on win8.1 64) as follows:
- MINGW32_NT-6.3  gcc -> stand-alone native i686 binaries
- MINGW64_NT-6.3  gcc -> stand-alone native x86_64 binaries
- MSYS_NT-6.3     gcc -> posix-ish binaries which can only run in this env

Therefore 'MINGW' is more generic and detects both 32/64 native
environments, where previously 'MINGW32' detected only the 32 one.
2016-10-10 14:55:34 +03:00
Avi Halachmi (:avih)
07818ec6a7 build: out-of-tree: fix docs 2016-10-10 14:54:04 +03:00
Avi Halachmi (:avih)
61894e17cd build: win32: don't use mklink - use ln or fallback to cp
For the following reasons:
- Native windows links are rarely used in general.
- Require elevated privileges even if the current user has administrator
  privileges (needs further "run as administrator").
- Most/all windows shell environments capable of running configure already
  support ln (msys[1], msys2, most probably cygwin too).
- If cross building tcc on linux for windows then native mklink is not
  available, as well as 'cmd' (in this scenario the build later fails
  for other reasons, but at least configures succeeds now).
- cp is good enough as fallback since we only copy 5 makefiles anyway.
- The only environment I'm aware of which doesn't support ln -s is busybox
  for windows, and with this patch it falls back to cp and completes
  configure successfully (and the build later succeeds, assuming valid
  $CC and $AR).
2016-10-10 14:50:48 +03:00
grischka
71b16f4e18 tccpp : "tcc -E -P" : suppress empty lines
Also:
- regenerate all tests/pp/*.expect with gcc
- test "insert one space" feature
- test "0x1E-1" in asm mode case
- PARSE_FLAG_SPACES: ignore \f\v\r better
- tcc.h: move some things
2016-10-09 20:33:14 +02:00
Daniel Glöckner
78c08898ae arm-gen.c: support VLAs 2016-10-09 00:14:40 +02:00
Daniel Glöckner
bf10bca192 tccgen.c: make vla_runtime_type_size always return the alignment 2016-10-09 00:13:31 +02:00
Daniel Glöckner
52a152235e arm-gen.c: replace register constants with enum values
and support sp in intr
2016-10-09 00:11:51 +02:00
Daniel Glöckner
6775c7cb3a tccgen.c: fix multi-register structure return when not on stack
We need to preserve the type of the pointer to the structure, f.ex.
when a global structure is returned.

This is not a perfect solution. Registers loaded in the first iteration
might be overwritten in a following iteration as the register is no
longer on vtop. This is not a problem for ARM32 as gfunc_sret returns
a maximum of 1 in the integer case.
2016-10-08 19:03:01 +02:00
Daniel Glöckner
c09b6ce975 tccgen.c: use correct type for storing long double constants 2016-10-08 18:52:28 +02:00
Daniel Glöckner
3dfee1d290 arm-gen.c: detect long double structures as HFA
when long double is equal to double
2016-10-08 18:47:35 +02:00
grischka
b42cb16b65 Misc. fixes
Makefile :
- do not 'uninstall' peoples /usr/local/doc entirely
libtcc.c :
- MEM_DEBUG : IDE-friendly output "file:line: ..."
- always ELF for objects
tccgen.c :
- fix memory leak in new switch code
- move static 'in_sizeof' out of function
profiling :
- define 'static' to empty
resolve_sym() :
- replace by dlsym()

win32/64: fix R_XXX_RELATIVE fixme
- was fixed for i386 already in
  8e4d64be2f
- do not -Lsystemdir if compiling to .o
2016-10-05 18:34:17 +02:00
grischka
b691585785 tccgen: arm/i386: save_reg_upstack
tccgen.c:gv() when loading long long from lvalue, before
was saving all registers which caused problems in the arm
function call register parameter preparation, as with

    void foo(long long y, int x);
    int main(void)
    {
      unsigned int *xx[1], x;
      unsigned long long *yy[1], y;
      foo(**yy, **xx);
      return 0;
    }

Now only the modified register is saved if necessary,
as in this case where it is used to store the result
of the post-inc:

        long long *p, v, **pp;
        v = 1;
        p = &v;
        p[0]++;
        printf("another long long spill test : %lld\n", *p);

i386-gen.c :
- found a similar problem with TOK_UMULL caused by the
  vstack juggle in tccgen:gen_opl()
  (bug seen only when using EBX as 4th register)
2016-10-04 17:36:51 +02:00
grischka
1c4cf18556 tccpp: no cache for include if #elif seen
#ifndef guards are cached, however after #elif on the
same level, the file must be re-read.

Also: preprocess asm as such even when there is no
assembler (arm).
2016-10-04 17:31:40 +02:00
grischka
5805b07218 Alternative fix for "Incorrect function call code on ARMv6"
"make test" crashes without that "save_regs()".

This partially reverts
commit 49d3118621.

Found another solution:  In a 2nd pass Just look if
any of the argument registers has been saved again,
and restore if so.
2016-10-03 12:33:41 +02:00
grischka
78f1c10e0f configure: fix tcc_lddir, cpu
... and other minor cosmetic fixes
2016-10-03 12:33:40 +02:00
Pavlas, Zdenek
f795e1be83 switch: binary search 2016-10-03 03:14:34 -07:00
Pavlas, Zdenek
da63695cf3 switch: fix label sorting 2016-10-03 00:43:28 -07:00
grischka
c2ad11ac70 tccgen: fix long long -> char/short cast
This was causing assembler bugs in a tcc compiled by itself
at i386-asm.c:352 when ExprValue.v was changed to uint64_t:

    if (op->e.v == (int8_t)op->e.v)
        op->type |= OP_IM8S;

A general test case:

    #include <stdio.h>
    int main(int argc, char **argv)
    {
        long long ll = 4000;
        int i = (char)ll;
        printf("%d\n", i);
        return 0;
    }

Output was "4000", now "-96".

Also: add "asmtest2" as asmtest with tcc compiled by itself
2016-10-02 01:39:14 +02:00