Commit Graph

2867 Commits

Author SHA1 Message Date
herman ten brugge
8f8abcc756 more bsd updates
This implements support for FreeBSD on aarch64
This partial implements support on FreeBSD(32). This still needs fixing
i386_gen.c because small structures on this target are passed in registers.

Add aligned 16 to __int128_t for FreeBSD
Support __i386__ on FreeBSD/NetBSD
Fix testcase 115 on FreeBSD/NetBSD
Disable testcase 116 on *BSD* because TLS_FUNC/TLS_VAR not set in bcheck.c
Remove FreeBSD/FreeBSD_kernel code from tccelf.c
2020-12-22 07:02:47 +01:00
Christian Jullien
888f4fd982 FreeBSD (aarch64): fix relocation error. 2020-12-22 05:52:45 +01:00
Christian Jullien
6cc87629b4 NetBSD: define __amd64__ which is sometimes used in headers. 2020-12-20 14:19:55 +01:00
Christian Jullien
a493fbb1fa *BSD: mention all BSD ports in README. 2020-12-20 10:50:07 +01:00
Christian Jullien
d4a4ee798b FreeBSD: Fix multiple ctype inline definitions 2020-12-20 09:45:16 +01:00
Christian Jullien
ac470a49d5 *BSD: Add few __builtin_ math missing definitions. 2020-12-20 07:26:04 +01:00
herman ten brugge
7eea5306e9 rename testcase 106 2020-12-19 21:02:44 +01:00
herman ten brugge
7f898abb82 bsd update
Fix crtbegin/crtend
Use dlsym on all bsd targets
Check .eh_frame on all bsd targets
Disable test3 on FreeBSD and NetBSD and use test1 instead because dlsym not working (WIP)
Disable dlltest and 113_btdll on NetBSD because text relocations are not allowed
Disable 115_bound_setjmp on NetBSD because longjmp is renamed into __longjmp14
2020-12-19 20:55:52 +01:00
herman ten brugge
a87dee588b dlltest_arm
This fixes the dlltest_arm on arm(32)
2020-12-19 20:33:36 +01:00
herman ten brugge
50b4f320dc lazy binding
Currently tcc does not use lazy binding. It puts all relocations in the RELX
section and solve them all at startup.
This was not working on bsd.

tcc.h:
- New RELPLT_SECTION_FMT for plt relocations
- New entry relocplt in struct Section

tccelf.c:
- put_elf_reloca: put R_JMP_SLOT in relocplt section
- build_got_entries*: Use two passes because R_JMP_SLOT and R_GLOB_DAT
                      can not be intermixed on some targets (arm, arm64)
- layout_sections: Calculate correct size relocplt section for DT_ values.
                   Make sure relocplt is last
- fill_dynamic: Add DT_ values when got is filled
                move DT_VERSYM because dynamic linker cannot handle it standone
- Add note section for NetBSD

arm-link.c/arm64-link.c/i386-link.c/riscv64-link.c/x86_64-link.c:
- fill got table with pointer to plt section or symbol value in case
  of TCC_OUTPUT_MEMORY

arm-link.c/arm64-link.c:
- fix offset first plt entry

i386-link.c/x86_64-link.c:
- use correct reloc entry
- use relofs - sizeof (ElfW_Rel) because the reloc is already done

lib/bcheck.c:
- no __libc_freeres on FreeBSD and NetBSD

tests/Makefile:
- Add -fno-stack-protector for OpenBSD

tests/tests2/Makefile:
- disable 106_pthread/114_bound_signal
2020-12-18 15:24:32 +01:00
grischka
e2e62fcb8b replace native platform macros in the compiler
- The compiler should not use these
- However tccrun.c & libtcc1.a files should use these
Also:
- use s1->loaded_dlls for loaded dlls instead of dlopens
- alpine musl: fully supported now and tested
- ./configure ...
   --config-backtrace=no : disable backtraces
   --config-bcheck=no : disable bcheck
- tests:dlltest: enable by default
- tccrun.c : simplify mmaps
- __builtin_alloca : always use asm-alias (instead of #define)
- tccpe.c : use write32le
2020-12-17 12:39:16 +01:00
Christian Jullien
02f61d5b49 riscv64: mention this supported cpu in README. 2020-12-17 09:10:00 +01:00
Christian Jullien
d5519c929c OpenBSD: mention this port on README 2020-12-17 06:22:10 +01:00
herman ten brugge
6eef0e35b4 OpenBSD: testcases
Fix all testcases for openbsd except dlltest.

Remember dlopen calls and use them to fix openbsd dlsym problem
Use crtbeginS.o/crtendS.o for DLL for bsd
Do not include -ldl for __NetBSD__
Redirect malloc, realloc, ..., free for bsd
Align stack in tests/asm-c-connect-*.c for x86_64
Remove -B in tests/pp/Makefile (not supported on bsd)
2020-12-16 17:52:59 +01:00
Christian Jullien
f48a9ed001 FreeBSD (on arm64): partial support, only -run works - WIP 2020-12-13 11:08:44 +01:00
Christian Jullien
eab324a7cf NetBSD (on arm64): reorder cpu detection to detect aarch64 target when cpu is arm64 2020-12-13 10:22:15 +01:00
Christian Jullien
c32cfc1113 NetBSD: predefine __ELF__ macro which is tested by some standard headers 2020-12-13 07:24:01 +01:00
Christian Jullien
f233cb182c NetBSD: reintroduce NetBSD support. Currently, -run works but executable has an incorrect format. 2020-12-11 14:26:26 +01:00
grischka
8ff705554d tcc_enter/exit_state(): do not use!
tcc_enter/exit_state() are meant exclusively to protect
the tcc_compile() and its sub-functions in tccpp.c,
tccgen.c, tccasm.c and xxx-gen.c.

Other files that are part of libtcc simply must not use global
variables.

- riscv64/last_hi: move to TCCState
  from 72250bece2

- tccrun.c: Using a fixed address would not work anyway
  ("tcc -run tcc.c -run ..." for example)
  from baacb0f52a

- tests/Makefile: support for a platform doesn't make sense if
  it doesn't pass our basic tests.
  from 591feda103
Also:
- tccgen: cleanup "duplicate member" (only 2 passes,
  avoids additional TokenSym field)
  from 170be79a42
2020-12-08 19:57:57 +01:00
Christian Jullien
a06fef3b11 FreeBSD: little better support that targets FreeBSD 12.2 on amd64 but still not working - WIP 2020-12-08 09:13:29 +01:00
Christian Jullien
f9c580b8a0 FreeBSD: start to reintroduce support - WIP 2020-12-08 06:55:50 +01:00
herman ten brugge
591feda103 OpenBSD: disable some tests 2020-12-07 12:06:17 +01:00
herman ten brugge
72250bece2 riscv64 relocation fix 2020-12-07 11:36:54 +01:00
herman ten brugge
baacb0f52a OpenBSD: runtime fixes
After this commit we can compile and run code with some limitations.
- The dlsym function is broken so this makes -run and bound checking
  not work all the time. Make -k test does work for most code.
- You have to do:
    ln -s /usr/lib/libN.so.x.y /usr/lib/libN.so
  for all .so files in /usr/lib.
  OpenBSD uses opendir/readdir to find the correct so file. This is
  not the way other platforms do this.
  Also the .a versions do not have all symbols that are present in the .so
  files.

tcc.h:
- Use different dynamic loader

elf.h:
- Add SHT_X86_64_UNWIND

tccelf.c:
- Do not use -dl
- Add required NOTE section
- Add extra dynamic tags
- Allow SHT_X86_64_UNWIND/SHT_NOTE in tcc_load_object_file

tccrun.c:
- Uses MAP_FIXED because without the offset between exec and data section
  becomes too big for x86_64

lib/bcheck.c:
- Do not use __libc_freeres

tests/tcctest.c:
- aligned_function also disabled for __GNUC__ == 4
2020-12-07 08:27:10 +01:00
Christian Jullien
19d287aae3 OpenBSD: fix typo in _ANSI_LIBRARY defined symbol 2020-12-07 07:57:01 +01:00
Christian Jullien
a3d5e4aa43 OpenBSD: define more internal symbols to support tcc on OpenBSD. 2020-12-07 07:15:56 +01:00
herman ten brugge
170be79a42 duplicate member
Check duplicate struct/union member names

tcc.h: Add cnt field in TokenSym

tccgen.c: New function check_fields to find duplicate member names.

This avoids quadratic behavior and can be used for large structs.
2020-12-03 07:53:44 +01:00
Christian Jullien
6f2659c230 OpenBSD: SYS_gettid syscall is named SYS_getthrid - WIP 2020-12-02 08:05:34 +01:00
Christian Jullien
38dea90b2f OpenBSD: workaround missing SYS_gettid - WIP 2020-11-29 08:54:55 +01:00
Christian Jullien
dfe031caa6 OpenBSD: Fix crt startup names - WIP 2020-11-29 08:47:27 +01:00
Christian Jullien
4e12c2a6dc OpenBSD: improve partial support for x86_64 - WIP 2020-11-27 11:24:19 +01:00
grischka
cf8d9cf072 win64: fix pe_isafunc()
- tccpe.c: commit "tidy support for helper function" created
  STT_NOTYPE symbols and hence relied on ad-hoc detection which
  didn't work for x86_64 (as reported by Christian Jullien)

- tccgen.c: However to be more safe the helper symbols are
  now made STT_FUNC anyway (via new VT_ASM_FUNC).

Also:
- tcc.h: minor reorder
- riscv64-*, arm64-*, tccmacho.c: avoid some gcc format-warnings
  (mingw-gcc complains about "%llx" being "unknown conversion",
  although it does work since Vista or so)
2020-11-26 16:11:17 +01:00
Tyge Løvset
13a18906ef win32 tcc_libm.h: Implemented overrides for msvcrt.dll's frexp(), ldexp(), and fabs() with speedups 4.5X, 7.3X and 6.3X correspondingly.
This is the last commit on this for now.
2020-11-25 14:29:42 +01:00
grischka
4a42b0d95e tidy support for helper function such as memmove
tcc.h, tccgen.c: Introduce Sym *external_helper_sym(int v);
  to create an external reference with no specific type. This
  avoids type conflicts if the symbol is used from C too.
the other files: use it.
2020-11-24 11:47:02 +01:00
Tyge Løvset
2f78f54924 win32 libm: Final optimizations and added nan*() function. 2020-11-23 20:42:36 +01:00
Arthur Williams
3709f8de14 Treat func pointers with different return types as not compatible
Tcc considered function ptrs with different return types to be
compatible which disallowed some otherwise valid operations like:
`_Generic(foo, int(*)():0, void(*)(void):1)`
which would fail to compile with a error message of "type match twice"

This changed also required longjump's return type to be void and
munmap's to be int to be compatible with standard headers.
2020-11-22 16:30:34 -06:00
Tyge Løvset
3b1a42e734 Cleanup and minor fixes in win32/tcc/tcc_libm.h: truncf(), cbrtf(), exp2f(), log2f(), scalbln*() 2020-11-21 14:45:35 +01:00
Tyge Løvset
b11144d69c Overhauled WIN32 math and added missing functions:
1) Cleanup: moved function implementations from win32/include/math.h to win32/include/tcc/tcc_libm.h
2) Added missing math functions: MUSL: asinh(), acosh(), atanh(), scalbn(). My impl: log1p(), expm1(), ilogb(), scalbln(), nexttoward()
 - now only a few are missing: remquo(), remainder(), fma(), nan(), erf(), erfc(), nearbyint().
3) Added/defined all missing *f() and *l() math functions.
4) Added functions have short but accurate/fast implementations.
5) Added <tgmath.h> for all platforms. (not too useful, IMO, but is C99 standard).
2020-11-20 23:34:35 +01:00
Wirtos_new
82611f5e6d Fix char limits
By the standard CHAR_MIN and CHAR_MAX should be 0 and UCHAR_MAX respectively when char implementation is unsigned ( -fno-signed-char)
2020-11-17 09:06:48 +02:00
Tyge Løvset
1073b379c8 WIN32/64 only: Added C99 math functions: tgamma(), tgammaf(), lgamma(), lgammaf(), cbrt(), cbrtf(), log2(), log2f(), exp2(), exp2f().
The gamma() functions are accurate to 13 digits over the full range. Returns INFINITY / NAN identical to other compiler's math libs.

#include <stdio.h>
#include <math.h>

int main() {
  double x;
  for (x = -7.0; x <= 520.0; x += 1.0) {
    printf("tgamma/lgamma %6.3f: %20.13g  %20.13g\n", x/3, tgamma(x/3.0), lgamma(x/3.0));
  }
  printf("tgamma/lgamma %g: %20.13g  %20.13g\n", 0.00000234, tgamma(0.00000234), lgamma(0.00000234));
  printf("log2, exp2, cbrt, cbrt: %.15g %.15g %.15g %.15g\n", log2(1024), exp2(10), cbrt(-10), cbrt(10));
}
2020-11-14 00:02:58 +01:00
herman ten brugge
08d8015750 Fix fork problem 114_bound_signal
There is a race condition in old libc in fork().
The result was that 'end' was sometimes printed twice.

This did not happen with glibc-2.32.
2020-11-10 10:08:30 +01:00
herman ten brugge
54b4aa3cd6 Disable signals in bcheck.c pthread_create
glibc-2.32 contains new code to prevent a race conditions with signals
in pthread_create.
2020-11-09 10:57:14 +01:00
grischka
8b69059f66 three small fixes & three reverts
- tcc.h: msvc doesn't grok __func__ (reverts previous commit)

- tccgen.c: fortify tcc against bogus code:
  - n[sizeof({3;})]; // statement expression outside of function
  - f(){"123"4}; // tokens with values following each other
  (also, add "type defaults to int" warning for variables)

- tccpe.c: removed a check that caused BSS symbols not to be
  exported.  Whatever that check was meant to prevent.

- win32/build-tcc.bat: cmd.exe sometimes doesn't grok '-' in labels

- Revert "libtcc: no need to undef"
  This reverts commit 2b7aa2a1e1.
- Revert "tcc.h libtcc.c: remove unused defines"
  This reverts commit 985d963745.

The point of these "unused defines" is to be unused,  that is
to remind people not to use malloc but please to "use_tcc_malloc",
instead.
2020-11-02 18:08:56 +01:00
Kyryl Melekhin
2b7aa2a1e1 libtcc: no need to undef 2020-11-01 15:51:50 +00:00
Kyryl Melekhin
985d963745 tcc.h libtcc.c: remove unused defines
pretty sure that functions with use_* do not exist
and attempts to use the macros will fail to link
I could rename them to be more up to date like tcc_malloc,
but to me overloading the std calls with macros is
probably taking away control from the programmer,
so for the best is to just get rid of them.
2020-11-01 15:24:45 +00:00
John Scott
53587ee415
tcc_internal_error: print function with __func__.
Though __func__ was introduced in C99, this is
preferable to __FUNCTION__, an obsolete GCC extension.
Found with gcc -Wpedantic.
2020-10-18 17:54:01 -04:00
John Scott
558c6f56e2
tcc_mallocz: clear with memset only if nonzero size
Even if non-NULL, dereferencing the pointer from malloc(0)
or passing it to memset() may invoke undefined behavior.
2020-10-16 21:20:33 -04:00
grischka
72b520e709 tccgen: flex arrays etc.
Fixes potential writes past the allocated space with mostly
illegal flex array initializers. (60_errors_and_warnings.c
:test_var_array)

In exchange suspicious precautions such as section_reserve
or checks with sec->data_allocated were removed.  (There is
an hard check 'init_assert()' for now but it's meant to be
just temporary)

Also, instead of filling holes, always memset(0) structures
& arrays on stack.  Sometimes more efficient, sometimes isn't.
At least we can omit putting null initializers.

About array range inititializers:  Reparsing tokens has a
small problem with sideeffects, for example

   int c = 0, dd[] = { [0 ... 1] = ++c, [2 ... 3] = ++c };

Also, instead of 'squeeze_multi_relocs()', delete pre-existing
relocations in advance. This works even if secondary initializers
don't even have relocations, as with
    [0 ... 7] = &stuff,
    [4] = NULL

Also, in tcc.h: new macro "tcc_internal_error()"
2020-10-03 18:12:46 +02:00
grischka
40395511d7 Revert "function pointer compare"
Always fine to try out things but not everything must be shown
to the public. ;)

Also, AFAIK pointers must compare equal only if derived directly
from each other (for example by cast to void* and back).

This reverts commit 8f9bf3f223.
2020-10-03 17:40:22 +02:00
grischka
cdc3df949b tcc -bench: show text/data/bss binary output sizes 2020-10-02 19:50:45 +02:00