3616 Commits

This Branch

This Branch

All Branches

Author	SHA1	Message	Date
Stefan	95d184cba1	i386-asm.c: Optional % for variables in specific registers ... Handle 'register long r10 __asm__("%r10")' without %, too. Using GCC the % is optional. The musl source code does not use the % prefix. The GCC source code uses both variants.	2025-09-21 13:18:37 +02:00
Stefan	5aebf106e8	i386-asm.c: Use NB_ASM_REGS instead of 8 ... For x86_64 there are more than just 8 registers.	2025-09-21 12:21:27 +02:00
Stefan	9dc59f9c23	i386-asm.c: Do bit-check for OP_SEG in asm_opcode ... Fix a bug with "call *%%gs:16", which sets the two flags OP_INDIR and OP_SEG in pop->type.	2025-09-21 12:18:11 +02:00
grischka	de8c19e1da	tccgen: globalize function return type too ... Commit 38ab5f65b3 was missing to move the function return type to the global stack too. Also, check redefinition in sym_push(), as before.	2025-09-18 19:32:19 +02:00
noneofyourbusiness	47106ce103	tccgen.c: silence logical op warning ... behavior is unchanged	2025-09-18 11:42:58 +02:00
noneofyourbusiness	8f23997ca7	tests/tcctest.c: include stdint.h ... despite being defined in tcc's own stddef.h, intended to be included by libtcc.h, libtcc.h actually included the libc's standard include tested on musl	2025-09-18 11:17:55 +02:00
noneofyourbusiness	e73529865d	tcc.c: add information about reporting bugs to the mailing list	2025-09-18 09:58:21 +02:00
grischka	38ab5f65b3	tccgen: more of scope hacks ... * case 1: local scope of 'ff' int main() { int ff = 123; { int ff(int): ff(456) }} * case 2: linkage of a static extern symbol (older gcc did allow that) static int ff(int); int main() { int ff(int): ff(456) } Also: - cleanup enum, let sym_push() handle redefinition - just mark incomplete array base types, unshare only when needed (in decl_initializer_alloc()) - fix sizeof empty array (= 0) : int ii[] = {}; - rename 'Sym' members used by __attribute__((cleanup(f)))	2025-09-08 17:23:18 +02:00
grischka	ce4de961af	tccpe: add COFF symbol table for GDB ... wanted by gdb to have global variables info on windows Also: tcc.h: - move dwarf inline fns - use dwarf as default for 64-bit platforms. GDB can't handle locals info from stabs on 64-bit correctly (also not from gcc). tccpe.c: - use 's1' instead of 'pe->s1' tccdbg.c: - fix locals info problem on Windows where (unsigned long) s->value is uint32_t and would not cast to long long correctly. - tweak dwarf to have line info at begin of functions, otherwise "gdb b main, r, n" would say "no line number info, single step..." (see also objdump --dwarf=decodedline ...)	2025-09-08 17:22:21 +02:00
herman ten brugge	03072a301c	Use configure to set note release bsd ... Using uname in tccelf.c was not working when cross compiling. So move it to configure script.	2025-09-04 06:47:40 +02:00
herman ten brugge	8c3396a76f	Fix cross compiling on windows	2025-09-03 07:43:01 +02:00
herman ten brugge	b45cea5f4b	Update bsd notes ... freebsd 13 must not have note section. freebsd 14 must have note section. also added version info.	2025-09-03 07:09:42 +02:00
herman ten brugge	b427545419	Update for freebsd versions >= 14.0	2025-08-31 12:24:03 +02:00
herman ten brugge	e6ea0d0424	tccgen: fix several problems ... Fix 'void func2(char *(*md)(char *md))' declaration. Fix global array and local extern array problems. Fix scope problem with old function declaration. Fix 'typedef int t[]' declaration. Empty size should remain.	2025-08-30 07:13:49 +02:00
herman ten brugge	8c59fd3cb6	Check enum range for typed enums	2025-08-24 11:22:38 +02:00
herman ten brugge	6ca6328e29	Fix long double to long long for x86_64	2025-08-23 14:48:34 +02:00
grischka	acb2a909dd	tccgen.c: fix two scope problems ... ... see tests Also: - tccgen.c: cleanup _Generic a little - libtcc.c: cleanup mem-debug a little - arm-link.c: read/write only once - tcc.h: another fix for clang offsetof - tccdbg.c: * stabs: handle forward struct/enum decls * stabs: fix anonymous struct members (must not have a .L123 name) * avoid strncpy()	2025-08-22 19:14:44 +02:00
herman ten brugge	4e6c4db340	Small debug cleanup ... A little bit better string hashing Move free code to seperate function	2025-08-22 16:45:06 +02:00
herman ten brugge	e5e3dc687b	Make debug info smaller ... Currently debug size is big because some types are output multiple times. Function scope was not treated correctly. Rename anon(ymous) into forw(ard). Compact string table by reusing names.	2025-08-22 10:27:59 +02:00
Matthias Gatto	f52b480f89	c2y if declaration (std n3356) ... standart is here: https://www.open-std.org/JTC1/SC22/WG14/www/docs/n3356.htm This feature should not add bug to existing features, as it is called only if there is a declaration in a switch or an if.	2025-08-22 00:01:58 +02:00
herman ten brugge	80e7040d0c	tcc loops with some input arguments ... This is one example: tcc -c a b -o c Detected with some configure scripts.	2025-08-18 22:28:05 +02:00
grischka	2662b7b43c	tccgen: local scope for types of function parameters ... int foo(struct xxx {int x[3];} *p) { ... We want 'xxx' be visible only inside the function. To get that, the patch removes the 'sym_push(param)' in xxx-gen.c, and instead (in tccgen.c:gen_function()) pushes all symbols that were newly defined during parsing of the parameter list in post_type(). Also, - decl_initializer_alloc(): patch existing globals earlier, which updates flex arrays too - let patch_type() do the 'redefinition' check and FUNC_OLD update	2025-08-18 21:06:03 +02:00
grischka	deb7a3fc73	tcc.c:main() free all & etc... ... tcc.c: - be nice to leak checkers tcctools.c: - remove unused TCCState params tccrun.c: - call bound_exit() after signals to let it free mem tccelf.c: - use section_add() instead of section_ptr_add() when more appropriate tccpp.c: - use size_t to align tal_header naturally - 'POINTER_SIZE' and 'PTR_SIZE' in the same source is confusing - "char file_name[TAL_DEBUG_FILE_LEN + 1];" looks silly. - next_nomacro(): skip UTF8 BOM at BOF tccgen.c: - get rid of STMT_EXPR clause on top of block - warn with useless type like 'int;' - move skip()'s in block() for better error line-info - BIT_SIZE bits are meaningful only with VT_BITFIELD (not with enums for example) workflow/test-win32: - build with MSVC using build-tcc.bat also alloca.S: - fix 'off by one' problem on win32 (must touch current page too because the 'push %edx' at the end could touch the next page) - must not align greater than 4 when used for struct args (i386-gen.c:gfunc_call()) libtcc.c: - accept -g1dwarf (dwarf output, only line info)	2025-08-18 20:43:52 +02:00
herman ten brugge	8845b6cd45	Make signed/unsigned bitfields the same as gcc/clang	2025-08-18 16:22:00 +02:00
herman ten brugge	199e135142	arm double to (unsigned) long long conversion ... Bug found with openssl test suite.	2025-08-17 08:49:29 +02:00
herman ten brugge	f8eb5f4ab8	Add -znodelete linker option ... This option is needed for openssl to create a correct library.	2025-08-16 18:29:19 +02:00
herman ten brugge	19fdef46f9	Allow mixing old/new function prototypes ... This fixes another external testsuite failure	2025-08-15 09:59:11 +02:00
Marek Knápek	571868c4f7	Fix for MSVC's usage of __declspec(align(#)).	2025-08-15 04:41:24 +02:00
herman ten brugge	03184fe33b	riscv target did not handle FUNC_OLD correctly.	2025-08-11 06:49:22 +02:00
herman ten brugge	37e1c88d78	Convert float to double for old function code.	2025-08-10 22:02:44 +02:00
herman ten brugge	087cf2e579	x86_64 bound checking failure ... The code: void mul(double *p) { *p *= 2.0; } failed on x86_64 because register was not loaded after bound checking call. Also printed size when pointer indir failes.	2025-08-10 21:55:48 +02:00
herman ten brugge	fa9795406d	Do not read past array end in struct return	2025-08-07 11:32:09 +02:00
herman ten brugge	9dffcd29d3	Fix tests/boundtest.c ... The test leaks memory on arm/arm64/riscv because alloca is replaced by malloc and the memory is not freed for test16 and test17.	2025-08-05 22:14:13 +02:00
herman ten brugge	311218ee5f	Allow testsuite to be build with CC -fsanitize ... Makefile: Add sani-test* targets + help tcc.h: redefine offsetof for clang -fsanitize tccelf.c: section_ptr_add: allow clang -fsanitize tcc_add_btstub/tcc_load_object_file: revert previous change. tccpp.c: Fix -fsanitize problem by casting to unsigned. tests/Makefile: tcc -v leaks memory (a lot of returns in main() leak memory) tests/tests2/Makefile: testcase 112 aborts and leaks memory. Disable leak test.	2025-08-05 16:47:11 +02:00
herman ten brugge	5364bc7c82	Fix i386 alloca code. ... I commited the wrong version in previous commit.	2025-08-03 18:41:32 +02:00
herman ten brugge	6694391b74	Update gcctestsuite ... I updated the tests/gcctestsuite.sh a bit. before: 3329 test(s) ok. 210 test(s) skipped. 168 test(s) failed. 28 test(s) exe failed. after: 3331 test(s) ok. 299 test(s) skipped. 79 test(s) failed. 26 test(s) exe failed. I found some small problems: include/tccdefs.h: Add alloca definition for i386 and x86_64 lib/alloca.S/lib/alloca-bt.S: align i386 alloca to 16 bytes. i386_gen.c vla code and gcc do the same. x86_64-gen.c: fix typo in comment	2025-08-03 10:35:58 +02:00
herman ten brugge	80bef6162a	Unshare typedef definitions if it used more then once.	2025-08-03 10:29:16 +02:00
herman ten brugge	8a0ccbbd94	Another update for clang -fsanitize ... arm-link.c: remove some casts tccelf.c: code style and remove code tccpp.c: use correct pointer size so cross compiling works riscv64-gen.c: make code more readable	2025-08-03 10:22:26 +02:00
herman ten brugge	666e88ee2a	Update for clang -fsanitize ... I tried to fix all remaining warnings/errors reported by -fsanitize. The riscv64-gen.c is a bit large because it contained a lot of warnings. I forgot some arm-link.c changes in last commit. The other changes are all small fixes to avoid warnings/errors.	2025-07-29 08:26:57 +02:00
herman ten brugge	8025a829cc	Check with clang -fsanitize ... Tested code with: clang -fsanitize=address,undefined,nullability -pie -fPIE -Iinclude -I. -g tcc.c -o tcc.tcc -lm -ldl -lpthread ./tcc.tcc -Iinclude -I. -b -g tcc.c -o tcc.tcc1 -lm -ldl -lpthread Also checked on i386/x86_64 with -fsanitize=memory (others not supported). arm-link.c: use read32le/write32le/add32le to avoid unaligned access tcc.h i386-asm.c: fix signed left shift lib/bcheck.c: Add _Atomic libtcc.c: Correct MEM_DEBUG_CHECK3 to avoid unaligned access riscv64-link.c: Fix R_RISCV_SET16 tccpp.c: Align tal_header_t to avoid unaligned access tccgen.c x86_64-gen.c: avoid use of uninitialized value There are still warnings reported: tccgen.c:4031:13: runtime error: member access within null pointer of type 'TCCState' (aka 'struct TCCState') tccelf.c:321:22: runtime error: applying zero offset to null pointer tccelf.c:1132:23: runtime error: applying non-zero offset 169184 to null pointer A lot of left shift of negative value warnings. I ignored these for the moment. Also the -run option does no work well with -fsanitize. It gets confused because it does not detect that the generated code in memory is used without -fsanitize option. There are a lot more -fsanitize options. I did not find serious problems with them.	2025-07-27 11:22:16 +02:00
DAVID	a2902d37a1	testing	2025-07-21 00:48:51 -03:00
Haelwenn (lanodan) Monnier	2ffb5869e0	lib/atomic.S: add GNU libatomic copyright notice	2025-07-19 00:30:12 +02:00
herman ten brugge	2eca4df6e9	Correct riscv load_large_constant	2025-07-18 08:15:58 +02:00
herman ten brugge	7c23c48a93	Riscv struct saving ... While adding some testcases for attribute cleanup I found a bug in the riscv code. It modifies the sv->c.i in load_symofs. If a structure contains more then one element only the first is stored correctly. This only happens on a large stack frame. Fixed by saving/restoring sv->c.i.	2025-07-17 06:50:15 +02:00
grischka	9670d10294	fix github CI & stuff ... workflows/build.yml: - win32/64: install mingw32/64 gcc on msys (because the default gcc installed elsewhere seems to use ucrt, producing incompatible fp printf formats.) tccgen.c: - cleanup funcs: save any lvalues from return expressions. Also use get_temp_local_var() which however was causing a problem on i386 because its gfunc_call() removes the arguments from vstack and by that defeats the 'in-use' tracking of get_temp_local_var(). Fixed by: i386/arm/arm64/x86_64-gen.c: - in gfunc_call(): save_regs before anything else, fixes problems seen in arm64/i386 tccpp.c: - allow arm asm specific use of '#' in macros libtcc.c: - organize -M options, and: tccpe.c: - move the subsystem option parsing from libtcc.c tccelf.c: - improved error handling in tcc_load_ldscript() lib/atomic.S: - TCC_TARGET_... not defined when building the lib - endbrNN security feature not supported by TCC tests/tests2/136_atomic_gcc_style.c: - never use standard assert() in tests	2025-07-16 21:32:21 +02:00
herman ten brugge	28d7fb85b2	Change windows_2019(deprecated) to windows_2022 in buid.xml	2025-07-14 16:39:33 +02:00
herman ten brugge	717a510a19	Enable atomic test for all targets	2025-07-14 15:37:13 +02:00
herman ten brugge	7657d871c1	Add endbr32 for i386	2025-07-14 08:27:14 +02:00
herman ten brugge	854d6c5ab4	Update arm and windows atomic functions ... I edited the arm thumb code so it works on armv6k. I used the minga64w libatomic.a for windows.	2025-07-14 08:17:42 +02:00
kbkpbot	0c12363fd3	arm64: Save func results before struct args ... In gfunc_call(), structure members are loaded into registers during argument handling. This operation may overwrite previous function call results stored in registers (e.g., s0). To prevent this, we must save function call results to the stack before processing structure arguments.	2025-07-11 22:13:30 +08:00