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* Revert "use int for ssize_t, (u)intptr_t instead of long in stddef.h"Matthias Gatto2017-07-261-2/+2
| | | | | | This reverts commit 52622c3c0365ad497ce1188e433ac5f0a721c283. Because 28b7c9 was right.
* use int for ssize_t, (u)intptr_t instead of long in stddef.hMatthias Gatto2017-07-251-2/+2
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* define __SIZE_TYPE__ and __PTRDIFF_TYPE__ as unsigned int and int.Matthias Gatto2017-07-251-2/+2
| | | | | | | As long is now a qualifier, and because compare_type will notice that variables are not the same type, we can't use long as int anymore. So, I've redefine __SIZE_TYPE__ as unsigned int and __PTRDIFF_TYPE__ as int.
* tccgen: nodata_wanted fix, default ONE_SOURCE, etc...grischka2017-07-231-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | tccgen.c: doubles need to be aligned, on ARM. The section_reserve() in init_putv does not do that. -D ONE_SOURCE: is now the default and not longer needed. Also, tcc.h now sets the default native target. These both make compiling tcc simple as "gcc tcc.c -o tcc -ldl" again. arm-asm.c: enable pseudo asm also for inline asm tests/tests2/Makefile: disable bitfield tests except on windows and x86_64 and don't generate-always tcc.c: fix a loop with -dt on errors configure: print compiler version (as recognized) tccpp.c: actually define symbols for tcc -dt clear static variables (needed for -dt or libtcc usage) 96_nodata_wanted.c: use __label__ instead of asm lib/files: use native symbols (__i386__ etc.) instead of TCC_TARGET_...
* tcc -dt -run ... : simpler is bettergrischka2017-07-201-67/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * -dt now with lowercase t * test snippets now separated by real preprocessor statements which is valid C also for other compilers #if defined test_xxx < test snippet x > #elif defined test_yyy < test snippet y > #elif ... #endif * simpler implementation, behaves like -run if no 'test_...' macros are seen, works with -E too * for demonstration I combined some of the small tests for errors and warnings (56..63,74) in "60_errors_and_warnings.c" Also: * libtcc.c: put tcc_preprocess() and tcc_assemble() under the setjmp clause to let them return to caller after errors. This is for -dt -E. * tccgen.c: - get rid of save/restore_parse_state(), macro_ptr is saved by begin_macro anyway, now line_num too. - use expr_eq for parsing _Generic's controlling_type - set nocode_wanted with const_wanted. too, This is to keep VT_JMP on vtop when parsing preprocessor expressions. * tccpp.c: tcc -E: suppress trailing whitespace from lines with comments (that -E removes) such as NO_GOTPLT_ENTRY,\t /* never generate ... */
* tccgen: nodata_wantedgrischka2017-07-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The existing variable 'nocode_wanted' is now used to control output of static data too. So... (nocode_wanted == 0) code and data (normal within functions) (nocode_wanted < 0) means: no code, but data (global or static data) (nocode_wanted > 0) means: no code and no data (code and data suppressed) (nocode_wanted & 0xC0000000) means: we're in declaration of static data Also: new option '-dT' to be used with -run tcc -dT -run file.c This will look in file.c for certain comment-boundaries: /*-* test-xxx: ...some description */ and then for each test below run it from memory. This way various features and error messages can be tested with one single file. See 96_nodata_wanted.c for an example. Also: tccgen.c: one more bitfield fix
* #pragma comment(option,"-..."), bitfields test, etc...grischka2017-07-141-0/+2
| | | | | | | | | | | | | | | | | | tccpp.c: * #pragma comment(option,"-some-option") to set commandline option from C code. May work only for some options. libtcc.c: * option "-d1..9": sets a 'g_debug' global variable. (for development) tests2/Makefile: * new make targets: tests2.37 / tests2.37+ run single test from tests2, optionally update .expect * new variable GEN-ALWAYS to always generate certain .expects * bitfields test tccgen.c: * bitfields: fix a bug and improve slightly more * _Generic: ignore "type match twice"
* unsorted adjustmentsgrischka2017-07-091-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - configure * use aarch64 instead of arm64 - Makefile * rename the custom include file to "config-extra.mak" * Also avoid "rm -r /*" if $(tccdir) is empty - pp/Makefile * fix .expect generation with gcc - tcc.h * cleanup #defines for _MSC_VER - tccgen.c: * fix const-propagation for &,| * fix anonymous named struct (ms-extension) and enable -fms-extension by default - i386-gen.c * clear VT_DEFSIGN - x86_64-gen.c/win64: * fix passing structs in registers * fix alloca (need to keep "func_scratch" below each alloca area on stack) (This allows to compile a working gnu-make on win64) - tccpp.c * alternative approach to 37999a4fbf3487b363fd0c2f9b7ab622401b202a This is to avoid some slowdown with ## token pasting. * get_tok_str() : return <eof> for TOK_EOF * -funsigned-char: apply to "string" literals as well - tccpe/tools.c: -impdef: support both 32 and 64 bit dlls anyway
* tccpp: Implement __COUNTER__Michael Matz2017-07-091-0/+1
| | | | | | | | | | | This requires one more change in how macro arguments are expanded: the standard requires that macro args are expanded before substituting into the replacement list. This implies expanding them only once even when they occur multiple times in the list. TCC expanded them repeatedly in that case. Without __COUNTER__ that's harmless. So, simply always expand arguments (when used without # and ##) once and store the resulting tokens.
* configure: --config-musl/-uClibc switch & misc cleanupsgrischka2017-05-131-9/+6
| | | | | | | | | | | | | | | - configure: - add --config-uClibc,-musl switch and suggest to use it if uClibc/musl is detected - make warning options magic clang compatible - simplify (use $confvars instead of individual options) - Revert "Remove some unused-parameter lint" 7443db0d5f841b81a55e918bf8c228dd20f9ddb2 rather use -Wno-unused-parameter (or just not -Wextra) - #ifdef functions that are unused on some targets - tccgen.c: use PTR_SIZE==8 instead of (X86_64 || ARM64) - tccpe.c: fix some warnings - integrate dummy arm-asm better
* bitfields: one more hack and a "-Wgcc-compat" switchgrischka2017-05-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bit_pos + bit_size > type_size * 8 must NEVER happen because the code generator can read/write only the basic integral types. Warn if tcc has to break GCC compatibility for that reason and if -Wgcc-compat is given. Example: struct __attribute__((packed)) _s { unsigned int x : 12; unsigned char y : 7; unsigned int z : 28; }; Expected (GCC) layout (sizeof struct = 6) .xxxxxxxx.xxxxyyyy.yyyzzzzz.zzzzzzzz.zzzzzzzz.zzzzzzz0. But we cannot read/write 'char y'from 2 bytes in memory. So we have to adjust: .xxxxxxxx.xxxx0000.yyyyyyyz.zzzzzzzz.zzzzzzzz.zzzzzzzz.zzz00000 Now 'int z' cannot be accessed from 5 bytes. So we arrive at this (sizeof struct = 7): .xxxxxxxx.xxxx0000.yyyyyyy0.zzzzzzzz.zzzzzzzz.zzzzzzzz.zzzz0000 Otherwise the bitfield load/store generator needs to be changed to allow byte-wise accesses. Also we may touch memory past the struct in some cases currently. The patch adds a warning for that too. 0: 55 push %ebp 1: 89 e5 mov %esp,%ebp 3: 81 ec 04 00 00 00 sub $0x4,%esp 9: 90 nop struct __attribute__((packed)) { unsigned x : 5; } b = {0} ; a: 8b 45 ff mov -0x1(%ebp),%eax d: 83 e0 e0 and $0xffffffe0,%eax 10: 89 45 ff mov %eax,-0x1(%ebp) This touches -0x1 ... +0x3(%ebp), hence 3 bytes beyond stack space. Since the data is not changed, nothing else happens here.
* Remove some unused-parameter lintLarry Doolittle2017-05-081-0/+3
| | | | | | | | Mark TCCState parameter as unused in tcc_undefine_symbol(), tcc_add_symbol(), tcc_print_stats(), asm_get_local_label_name(), use_section1(), tccpp_delete(), tcc_tool_ar(), tcc_tool_impdef(), and tcc_tool_cross(). Also mark it unused in tcc_add_bcheck() unless CONFIG_TCC_BCHECK. Remove it entirely in ld_next().
* Spelling fixes in C comments onlyLarry Doolittle2017-05-071-2/+2
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* Simple-minded fix for bug #50847Larry Doolittle2017-04-251-0/+1
| | | | | | bug #50847: #line directive corrupts #include search path Keep a second copy of the filename, that isn't changed by the #line directive, and use that on the initial search path for #include files.
* final adjustments for releasegrischka2017-04-251-17/+10
| | | | | | | | | | | | | | | | | | | | | - configure/Makefiles: minor adjustments - build-tcc.bat: add -static to gcc options (avoids libgcc_s*.dll dependency with some mingw versions) - tccpe.c/tcctools.c: eliminate MAX_PATH (not available for cross compilers) - tccasm.c: use uint64_t/strtoull in unary() (unsigned long sometimes is only uint32_t, as always on windows) - tccgen.c: Revert (f077d16c) "tccgen: gen_cast: cast FLOAT to DOUBLE" Was a rather experimental, tentative commit, not really necessary and somewhat ugly too. - cleanup recent osx support: - Makefile/libtcc.c: cleanup copy&paste code - tccpp.c: restore deleted function
* tcc: early OSX native supportAndrei Warkentin2017-04-251-2/+17
| | | | | | | | | | | | - build scripts - working '-run' mode, e.g.: ./tcc -B. -I./include -I. -I.. -D_ANSI_SOURCE -run examples/ex1.c Note: we don't bother parsing Mach-O/Fat images yet. We blindly dlopen the image. Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com>
* Add support of musl-libcMarc Vertes2017-04-201-0/+4
| | | | The port is functional. Bound checking is not supported yet.
* tccgen/win32: let __declspec(dllimport) imply externgrischka2017-04-041-1/+5
| | | | | | | | | | | | | | | | | | | | | | | Also, retain storage qualifiers in type_decl, in particular also for function pointers. This allows to get rid of this very early hack in decl() type.t |= (btype.t & VT_STATIC); /* Retain "static". */ which was to fix the case of int main() { static int (*foo)(); ... Also: - missing __declspec(dllimport) is an error now - except if the symbol is "_imp__symbol" - demonstrate export/import of data in the dll example (while 'extern' isn't strictly required with dllimport anymore) - new function 'patch_storage()' replaces 'weaken_symbol()' and 'apply_visibility()' - new function 'update_storage()' applies storage attributes to Elf symbols. - put_extern_sym/2 accepts new pseudo section SECTION_COMMON - add -Wl,-export-all-symbols as alias for -rdynamic - add -Wl,-subsystem=windows for mingw compatibility - redefinition of 'sym' error for initialized global data
* cross-compilers: allow individual configurationgrischka2017-02-231-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | since configure supports only native configuration a file 'cross-tcc.mak' needs to be created manually. It is included in the Makefile if present. # ---------------------------------------------------- # Example config-cross.mak: # # windows -> i386-linux cross-compiler # (it expects the linux files in <prefix>/i386-linux) ROOT-i386 = {B}/i386-linux CRT-i386 = $(ROOT-i386)/usr/lib LIB-i386 = $(ROOT-i386)/lib:$(ROOT-i386)/usr/lib INC-i386 = {B}/lib/include:$(ROOT-i386)/usr/include DEF-i386 += -D__linux__ # ---------------------------------------------------- Also: - use libtcc1-<target>.a instead of directories - add dummy arm assembler - remove include dependencies from armeabi.c/lib-arm64.c - tccelf/ld_add_file: add SYSROOT (when defined) to absolute filenames coming from ld-scripts
* tcc: re-enable correct option -r supportgrischka2017-02-201-19/+0
| | | | | | | | | | | | | | | Forgot about it. It allows to compile several sources (and other .o's) to one single .o file; tcc -r -o all.o f1.c f2.c f3.S o4.o ... Also: - option -fold-struct-init-code removed, no effect anymore - (tcc_)set_environment() moved to tcc.c - win32/lib/(win)crt1 minor fix & add dependency - debug line output for asm (tcc -c -g xxx.S) enabled - configure/Makefiles: x86-64 -> x86_64 changes - README: cleanup
* tcc -hh: show more optionsgrischka2017-02-181-0/+4
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* tcctools.c: integrate tiny_libmaker/_impdefgrischka2017-02-181-82/+128
| | | | | | | | | | | | | | usage: tcc -ar [rcsv] lib files... tcc -impdef lib.dll [-v] [-o lib.def] also: - support more files with -c: tcc -c f1.c f2.c ... - fix a bug which caused tcc f1.c f2.S to produce no asm - allow tcc -ar @listfile too - change prototype: _void_ tcc_set_options(...) - apply -Wl,-whole-archive when a librariy is given as libxxx.a also (not just for -lxxx)
* -Wl, --enable-new-dtags for DT_RUNPATH instead of DT_RPATHSteffen Nurpmeso2017-02-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Today by accident i had to deal with linker problems of some software and found an issue that mentioned DT_RUNPATH, which mentioned that DT_RPATH is legacy and searched for $LD_LIBRARY_PATH, whereas the newer DT_RUNPATH is searched thereafter. Completely unencrypted! Well. For what's it worth, i for one am astonished because of course i want to override $LD_LIBRARY_PATH, but it surely has its merites, smart people came to the conclusion, did they. The attached diff below seems to be sufficient to support DT_RUNPATH instead of DT_RPATH with tcc(1). But i have no insight in what --enable-new-dtags is supposed to change in addition, so i wonder. Ciao! --steffen libtcc.c | 2 ++ tcc-doc.texi | 4 ++++ tcc.h | 1 + tccelf.c | 3 ++- 4 files changed, 9 insertions(+), 1 deletion(-)
* win32: adjust new unicode supportgrischka2017-02-181-3/+0
| | | | | | | | | | | | | | | | | | | - lib/Makefile: add (win)crt1_w.o - crt1.c/_runtmain: return to tcc & only use for UNICODE (because it might be not 100% reliable with for example wildcards (tcc *.c -run ...) - tccrun.c/tccpe.c: load -run startup_code only if called from tcc_run(). Otherwise main may not be defined. See libtcc_test.c - tests2/Makefile: pass extra options in FLAGS to allow overriding TCC Also: - tccpe.c: support weak attribute. (I first tried to solve the problem above by using it but then didn't)
* mems & leaksgrischka2017-02-131-4/+15
| | | | | | | | | | | | - define_start: set above preprocess_start because now preprocess_start is defining macros. - free "cmd_include_files" - free defines always (after error-longjmps) - close all files (after error-longjmps) - tccpe.c: free imports always - libtcc.c: call tcc_memstats only after all states have been deleted.
* fixes & cleanupsgrischka2017-02-131-11/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - tccgen.c/tcc.h: allow function declaration after use: int f() { return g(); } int g() { return 1; } may be a warning but not an error see also 76cb1144ef91924c53c57ea71e6f67ce73ce1cc6 - tccgen.c: redundant code related to inline functions removed (functions used anywhere have sym->c set automatically) - tccgen.c: make 32bit llop non-equal test portable (probably not on C67) - dynarray_add: change prototype to possibly avoid aliasing problems or at least warnings - lib/alloca*.S: ".section .note.GNU-stack,"",%progbits" removed (has no effect) - tccpe: set SizeOfCode field (for correct upx decompression) - libtcc.c: fixed alternative -run invocation tcc "-run -lxxx ..." file.c (meant to load the library after file). Also supported now: tcc files ... options ... -run @ arguments ...
* libtcc: support multiple -Wl,-rpath=...'sgrischka2017-02-111-7/+11
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* tcc: don't use pstrcpy, fix win32 spanwn quotinggrischka2017-02-081-4/+4
| | | | | | | | | | | | - we're now exporting tcc_prefixed symbols from libtcc only - On windows, the msvcrt startup code would remove backslashes from commandline arguments such as -DFOO=\"foo\" which would appear in argv as -DFOO="foo" Therefor before passing these to spawnvp, we need to restore the backslashes.
* win32: support "-Wl,--large-address-aware" optionPavlas, Zdenek2016-12-301-0/+2
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* tests: OOT build fixes etc.grischka2016-12-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | tests/Makefile: fix out-of-tree build issues Also: - win64: align(16) MEM_DEBUG user memory on win64 the struct jmp_buf in the TCCState structure which we allocate by tcc_malloc needs alignment 16 because the msvcrt setjmp uses MMX instructions. - libtcc_test.c: win32/64 need __attribute__((dllimport)) for extern data objects - tcctest.c: exclude stuff that gcc does not compile except for relocation_test() the other issues are mostly ASM related. We should probably check GCC versions but I have no idea which mingw/gcc versions support what and which don't. - lib/Makefile: use tcc to compile libtcc1.a (except on arm which needs arm-asm
* libtcc.c: -m option cleanupgrischka2016-12-181-177/+124
| | | | | | | | | | | handle mms-bitfields as sub-options of -m. (-mfloat-abi is still special because it requires arguments) tcc.c: help(): - list -mms-bitfields under 'Target specific options' libtcc.c/MEM_DEBUG - add check for past buffer writes
* tests: add memory leak testgrischka2016-12-181-10/+13
| | | | | | | | | | | | | Also ... tcctest.c: - exclude stuff that gcc doesn't compile on windows. libtcc.c/tccpp.c: - use unsigned for memory sizes to avoid printf format warnings - use "file:line: message" to make IDE error parsers happy. tccgen.c: fix typo
* Handle multiple -O optionsMichael Matz2016-12-151-3/+5
| | | | the last one wins, i.e. "-O2 -O0" does _not_ set __OPTIMIZ__.
* x86_64: Add -mno-sse optionMichael Matz2016-12-151-2/+13
| | | | | This disables generation of any SSE instructions (in particular in stdarg function prologues). Necessary for kernel compiles.
* Handle __builtin_extract_return_addrMichael Matz2016-12-151-0/+3
| | | | | Our architectures don't need anything special for this builtin, just pass through the argument.
* Fix access-after-free with statement expressionsMichael Matz2016-12-151-2/+2
| | | | | | | | | | | | The return value of statement expressions might refer to local symbols, so those can't be popped. The old error message always was just a band-aid, and since disabling it for pointer types it wasn't effective anyway. It also never considered that also the vtop->sym member might have referred to such symbols (see the testcase with the local static, that used to segfault). For fixing this (can be seen better with valgrind and SYM_DEBUG) simply leave local symbols of stmt exprs on the stack.
* Accept -Wp,argsMichael Matz2016-12-151-0/+6
| | | | | | | These are preprocessor cmdline arguments, but even in GCC they aren't specified but rather left as being subject to changes. Nobody should use them, but let's to a half-assed attempt at accepting them.
* Add --param, reject -mARG if ARG not 32 or 64Michael Matz2016-12-151-0/+4
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* Implement -include cmdline optionMichael Matz2016-12-151-0/+6
| | | | | | This option includes a file as if '#include "file"' is the first line of compiled files. It's processed after all -D/-U options and is processed per input file.
* Free defines before gen_inline_functionsMichael Matz2016-12-151-2/+2
| | | | | | | | gen_inline_functions uses the macro facilities of the preprocessor, which would interact when macros would still be defined in a different pre-processor implementation I'm working on. So always free defines before generating inline functions, they are all macro expanded already.
* tccelf: some linker cleanupgrischka2016-12-151-1/+0
| | | | | | | | | | - generate and use SYM@PLT for plt addresses - get rid of patch_dynsym_undef hack (no idea what it did on FreeBSD) - use sym_attrs instead of symtab_to_dynsym - special case for function pointers into .so on i386 - libtcc_test: test tcc_add_symbol with data object - move target specicic code to *-link.c files - add R_XXX_RELATIVE (needed for PE)
* Do section relocation in architecture backendThomas Preud'homme2016-12-031-0/+5
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* Rename add_elf_sym to set_elf_symThomas Preud'homme2016-12-031-1/+1
| | | | | | | | | | add_elf_sym is a confusing name because it is not clear what the function does compared to put_elf_sym. As a matter of fact, put_elf_sym also adds a symbol in a symbol table. Besides, "add_elf_sym" fails to convey that the function can be used to update a symbol (for instance its value). "set_elf_sym" seems like a more appropriate name: it will set a symbol to a given set of properties (value, size, etc.) and create a new one if non exist for that name as one would expect.
* Implement gcc bitfield algorithm; add -mms-bitfieldsDavid Mertens2016-11-281-0/+6
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* tccrun/win64: cleanup runtime function tablegrischka2016-10-191-6/+2
| | | | | | | | | | | | | | - 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
* tccpp_new/delete and other cleanupsgrischka2016-10-171-42/+19
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* system-hacks: define __GNUC__ for FreeBSDMichael Matz2016-10-171-10/+9
| | | | | | | | | | | | 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]
* No 'Thread Storage Local' on FreeBSD with tcc.Christian Jullien2016-10-151-0/+2
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* Backslash was missing after reindentation to let code be < 80 col.Christian Jullien2016-10-151-1/+1
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* #define __GNUC__ = 2.1grischka2016-10-151-6/+19
| | | | | | | | | | __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.