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Author SHA1 Message Date
Edmund Grimley Evans f5f82abc99 Insert spaces between certain tokens when tcc is invoked with -E. 
Insert a space when it is required to prevent mistokenisation of
the output, and also in a few cases where it is not strictly
required, imitating GCC's behaviour.
 2016-05-09 19:27:31 +01:00
Edmund Grimley Evans 0fbc77cac6 tests/tests2/Makefile: Make 85-asm-outside-function Intel-only. 2016-05-04 21:23:25 +01:00
Edmund Grimley Evans a348513569 Revert 78e4ee5. 2016-05-04 20:27:39 +01:00
Edmund Grimley Evans 6015840583 Revert 3283c26 and a1c1390 in tccpp.c. 2016-05-04 20:14:39 +01:00
Edmund Grimley Evans 68ce8639bb TODO: Add two issues. 2016-04-24 22:44:57 +01:00
Edmund Grimley Evans f75f89fc8f tccgen.c: In parse_btype, handle type qualifiers applied to arrays. 
Also add some test cases in tests/tests2/39_typedef.c.
 2016-01-11 07:51:58 +00:00
Edmund Grimley Evans 541b33591c CodingStyle: Remove reference to misaligned struct CString. 
This was fixed by 1c2dfa1 on 2015-11-21.
 2016-01-06 19:09:28 +00:00
Edmund Grimley Evans 1c2dfa1f4b Change the way struct CStrings are handled. 
A CString used to be copied into a token string, which is an int array.
On a 64-bit architecture the pointers were misaligned, so ASan gave
lots of warnings. On a 64-bit architecture that required memory
accesses to be correctly aligned it would not work at all.

The CString is now included in CValue instead.
 2015-11-26 12:40:50 +00:00
Edmund Grimley Evans 4886d2c640 TODO: Add two issues. 2015-11-26 12:31:23 +00:00
Edmund Grimley Evans 99372bb1d3 tccgen.c: Give error if statement expression found when const wanted. 
Some test cases:

#define SE ({ switch (0) { } 0; })

// Should give error:
int x = SE;
void f(void) { static int x = SE; }
void f(void) { enum e { a = SE }; }
void f(void) { switch (0) { case SE: break; } }

// Correct:
int f(void) { return SE; }
int f(void) { return sizeof(SE); }
 2015-11-26 12:28:42 +00:00
Edmund Grimley Evans 51c3465a49 tcc.h: Change order of built-in include paths: put TCC's own dir first. 
There may be compiler-specific header files that should override
system headers. See TCC's include paths by running "tcc -vv".
 2015-11-23 12:50:16 +00:00
Edmund Grimley Evans 7301b42e36 tccgen.c: Try to make sizeof(!x) work. 
tests/tests2/27_sizeof.*: Add test.
 2015-11-22 00:00:36 +00:00
Edmund Grimley Evans 737f984213 tccgen.c: Bug fix for 992cbda and 3ff77a1: set nocode_wanted. 
tests/tests2/78_vla_label.*: Add test.
 2015-11-21 23:58:58 +00:00
Edmund Grimley Evans cfef9ac3f5 TODO: Add note on handling of floating-point values. 2015-11-21 10:35:47 +00:00
Edmund Grimley Evans dd40d6a068 TODO: Add some issues. 2015-11-21 00:04:58 +00:00
Edmund Grimley Evans 5bd5fd488d CodingStyle: Add notes on language and testing. 2015-11-20 23:41:01 +00:00
Edmund Grimley Evans 3ff77a1d6f Improve constant propagation with "&&" and "||". 2015-11-20 23:33:49 +00:00
Edmund Grimley Evans c7067aeb84 tccelf.c: On arm64, use read64le, and use uint64_t to check range. 2015-11-20 23:29:08 +00:00
Edmund Grimley Evans 4ae626451e Bug fix for commit 553242c18a. 
In gtst, vtop->c.i is not usually zero, but it is when compiling:

int f(void) { return 1 && 1 ? 1 : 1; }
 2015-11-20 23:17:24 +00:00
Edmund Grimley Evans 992cbda8d0 tccgen.c: Recognise constant expressions with conditional operator. 
tests/tests2/78_vla_label.c: Check that int a[1 ? 1 : 1] is not a VLA.
 2015-11-20 00:24:46 +00:00
Edmund Grimley Evans 30c54c9d43 tccgen.c: In parse_btype, handle typedef types with added type qualifiers. 
In a case like

    typedef int T[1];
    const T x;

we must make a copy of the typedef type so that we can add the type
qualifiers to it.

The following code used to give

error: incompatible types for redefinition of 'f'

    typedef int T[1];
    void f(const int [1]);
    void f(const T);
 2015-11-19 23:45:33 +00:00
Edmund Grimley Evans 58a34d22c9 tccgen.c: Improvements to type_to_str (only used for error messages). 
1. Handle array types.
2. Print the type qualifiers of pointers.
 2015-11-19 23:35:36 +00:00
Edmund Grimley Evans ba99a70cd8 Trivial changes to avoid some compiler warnings. 2015-11-19 18:26:47 +00:00
Edmund Grimley Evans 553242c18a Replace pointer casts with calls to (read|write)(16|32|64)le. 
This stops UBSan from giving runtime misaligned address errors
and might eventually allow building on a non-little-endian host.
 2015-11-19 18:21:14 +00:00
Edmund Grimley Evans 5d496b1695 tccgen.c: Avoid undefined behaviour in constant propagation. 2015-11-17 19:34:31 +00:00
Edmund Grimley Evans 569fba6db9 Merge the integer members of union CValue into "uint64_t i". 2015-11-17 19:09:35 +00:00
Edmund Grimley Evans 3712c958f4 tests/tests2/79_vla_continue.c: Fix off-by-one error. 2015-11-13 21:49:29 +00:00
Edmund Grimley Evans c39bc9caa7 libtcc.c: Completely replace tcc_normalize_inc_dirs. 2015-11-11 21:18:01 +00:00
Edmund Grimley Evans a7334f791d arm64-gen.c: Avoid some cases of undefined behaviour. 
Also make some functions more portable.
 2015-11-09 23:06:05 +00:00
Edmund Grimley Evans c52128c581 tccelf.c: Avoid two trivial instances of undefined behaviour. 2015-11-09 22:57:58 +00:00
Edmund Grimley Evans eb00777309 tcctok.h: Put TOK_memmove in the correct places (I hope). 
This should have been part of b051549. Someone should test on ARM.
 2015-11-05 19:37:04 +00:00
Edmund Grimley Evans 7f0b798418 tcctok.h: Revert 41408f2, which moved TOK_memmove. 2015-11-05 19:33:46 +00:00
Edmund Grimley Evans f7dd3d49cc lib/libtcc1.c: Replace "long" with "unsigned int" in union float_long. 2015-11-04 23:22:00 +00:00
Edmund Grimley Evans 24308fd292 tccpp.c: In TOK_GET, add comment warning about illegal cast. 
Also, in tok_str_add2, use memcpy instead of the illegal cast.

Unfortunately, I can't see an easy way of fixing the bug.
 2015-11-04 20:27:54 +00:00
Edmund Grimley Evans 20f0c179da tccpp.c: Define and use tok_last for checking if last token is space. 2015-11-04 20:25:26 +00:00
Edmund Grimley Evans b051549f2e tccgen.c: Use memmove for struct assignment: dest and src may be equal. 2015-11-04 20:23:17 +00:00
Edmund Grimley Evans 8eab556ac5 tccgen.c: Fix memory leak involving asm_label. 2015-11-04 20:22:30 +00:00
Edmund Grimley Evans 9bf0e57509 tests/tcctest.c: Fix up format strings. 2015-11-04 20:20:26 +00:00
Edmund Grimley Evans f4082851ea Enable variable-length arrays on arm64. 
arm64-gen.c: Implement gen_vla_sp_save, gen_vla_sp_restore, gen_vla_alloc.
tests/Makefile: Run vla_test on arm64.
 2015-10-31 11:04:52 +00:00
Edmund Grimley Evans f0b7566181 tccelf.c: Reset sym after call to build_got. 
The call to build_got can cause symtab_section->data to be reallocated
(build_got -> add_elf_sym -> put_elf_sym -> section_ptr_add ->
section_realloc -> tcc_realloc). This is not obvious on a cursory
inspection, but fortunately Valgrind spotted it immediately.
Are there other, similar bugs that Valgrind did not detect?
 2015-10-16 20:33:41 +01:00
Edmund Grimley Evans 743684fe39 tccpp.c: Avoid infinite loop on: printf '/**' | ./tcc - 2015-10-15 19:02:58 +01:00
Edmund Grimley Evans c899659d39 tccgen.c: Remove undefined shift of negative signed value. 2015-10-15 19:02:57 +01:00
Edmund Grimley Evans eafd7a7d3b Correct prototype: void __clear_cache(void *, void *). 2015-10-15 19:02:54 +01:00
Edmund Grimley Evans aa812e8745 Convert some lines from ISO-8859-1 to UTF-8. 
perl -i -pe 'use Text::Iconv;
$c1 = Text::Iconv->new("utf-8", "utf-8");
$c2 = Text::Iconv->new("iso-8859-1", "utf-8");
if (!$c1->convert($_)) { $_ = $c2->convert($_); }' \
`find * -type f`
 2015-03-11 07:30:03 +00:00
Edmund Grimley Evans 5de8b5638f .gitignore: Add lib/arm64. 2015-03-10 22:38:26 +00:00
Edmund Grimley Evans 0e79df499a tccgen.c: (!nocode_wanted) -> (nocode_wanted) in arm64 part. 2015-03-10 22:37:36 +00:00
Edmund Grimley Evans d73b488401 arm64: Implement __clear_cache. 
__clear_cache is defined in lib-arm64.c with a single call to
__arm64_clear_cache, which is the real built-in function and is
turned into inline assembler by gen_clear_cache in arm64-gen.c
 2015-03-08 00:10:44 +00:00
Edmund Grimley Evans 03303628c7 tests/Makefile: Quote to avoid: /bin/sh: 1: [: !=: unexpected operator 2015-03-07 18:10:45 +00:00
Edmund Grimley Evans d854dede03 arm64: Optimise some integer operations with a constant operand. 2015-03-07 17:42:08 +00:00
Edmund Grimley Evans ac70e6b840 tccgen.c: Optimise 0<<x, 0>>x, -1>>x, x&0, x*0, x|-1, x%1. 
More precisely, treat (0 << x) and so on as constant expressions, but
not if const_wanted as we do not want to allow "case (x*0):", ...

Do not optimise (0 / x) and (0 % x) here as x might be zero, though
for an architecture that does not generate an exception for division
by zero the back end might choose to optimise those.
 2015-03-07 17:32:39 +00:00
Edmund Grimley Evans 9163393476 arm64-gen.c: In load(), do not sign-extend 32-bit VT_CONST. 2015-03-07 17:32:39 +00:00
Edmund Grimley Evans 238e760a29 Add __builtin_return_address. 
Implementation is mostly shared with __builtin_frame_address.
It seems to work on arm64, i386 and x86_64. It may need to be
adapted for other targets.
 2015-03-06 21:01:14 +00:00
Edmund Grimley Evans 3fb8b14806 tccelf.c: File path component is "arm64", not "ARM64". 2015-03-04 19:43:29 +00:00
Edmund Grimley Evans 1706d2254b arm64-gen.c: Improve generation of stack offsets. 2015-03-02 20:51:03 +00:00
Edmund Grimley Evans 1d41da9590 arm64-gen.c: Rename some functions and add comments. 2015-03-02 20:45:58 +00:00
Edmund Grimley Evans 86e8dcd5e2 arm64: Improve constant generation, with tests. 2015-03-02 20:39:28 +00:00
Edmund Grimley Evans 883fd365c7 arm64-gen.c: Better explanation of relocation choice. 2015-03-01 11:31:10 +00:00
Edmund Grimley Evans fc119f9840 73_arm64.c: Avoid taking address of return value. 2015-02-26 12:27:00 +00:00
Edmund Grimley Evans 8329facdfa Add 73_arm64 for testing some arm64 things, mostly PCS. 2015-02-25 22:51:41 +00:00
Edmund Grimley Evans a4d43618fb arm64-gen.c: In gen_va_arg, handle the remaining HFA cases. 2015-02-25 22:51:41 +00:00
Edmund Grimley Evans 36bb8994dd Relicensing TinyCC 2015-02-25 07:52:39 +00:00
Edmund Grimley Evans 97e08be344 tests/tcctest.c: Test COMPAT_TYPE(char *, signed char *). 2015-02-24 19:35:31 +00:00
Edmund Grimley Evans 40f7e11c53 tccgen.c: Make sure that gen_op always returns an rvalue. 
Either this fix, or an alternative one, is required for arm64.
 2015-02-23 22:51:10 +00:00
Edmund Grimley Evans b14ef0e24b Add arm64 (AArch64) as a target architecture. 2015-02-23 22:51:03 +00:00
Edmund Grimley Evans 738606dbd5 Use RELA relocations properly for R_DATA_PTR on x86_64. 
libtcc.c: Add greloca, a generalisation of greloc that takes an addend.
tcc.h: Add greloca and put_elf_reloca.
tccelf.c: Add put_elf_reloca, a generalisation of put_elf_reloc.
tccgen.c: On x86_64, use greloca instead of greloc in init_putv.
 2015-02-21 21:29:03 +00:00
Edmund Grimley Evans 86c850fc58 tcc-doc.texi: Explain VT_LLOCAL a bit better. 
And delete the sentence about it being removed.
 2015-02-20 23:29:21 +00:00
Edmund Grimley Evans ff3f9aa6ba 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.
 2015-02-20 23:16:00 +00:00