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fixes & cleanups

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- 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 76cb1144ef

- 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 ...
This commit is contained in:
grischka
2017-02-13 18:23:43 +01:00
parent 9817204d8a
commit a4a20360e9
13 changed files with 61 additions and 90 deletions
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15
tccelf.c
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@ -49,7 +49,7 @@ static int new_undef_sym = 0; /* Is there a new undefined sym since last new_und
ST_FUNC void tccelf_new(TCCState *s)
{
/* no section zero */
dynarray_add((void ***)&s->sections, &s->nb_sections, NULL);
dynarray_add(&s->sections, &s->nb_sections, NULL);
/* create standard sections */
text_section = new_section(s, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR);
@ -153,10 +153,10 @@ ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh
}
if (sh_flags & SHF_PRIVATE) {
dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec);
dynarray_add(&s1->priv_sections, &s1->nb_priv_sections, sec);
} else {
sec->sh_num = s1->nb_sections;
dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec);
dynarray_add(&s1->sections, &s1->nb_sections, sec);
}
return sec;
@ -1896,7 +1896,7 @@ static int tcc_write_elf_file(TCCState *s1, const char *filename, int phnum,
static int elf_output_file(TCCState *s1, const char *filename)
{
int i, ret, phnum, shnum, file_type, file_offset, *sec_order;
struct dyn_inf dyninf;
struct dyn_inf dyninf = {0};
ElfW(Phdr) *phdr;
ElfW(Sym) *sym;
Section *strsec, *interp, *dynamic, *dynstr;
@ -1912,7 +1912,6 @@ static int elf_output_file(TCCState *s1, const char *filename)
phdr = NULL;
sec_order = NULL;
interp = dynamic = dynstr = NULL; /* avoid warning */
dyninf.dyn_rel_off = 0; /* avoid warning */
if (file_type != TCC_OUTPUT_OBJ) {
relocate_common_syms();
@ -2595,7 +2594,7 @@ ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level)
dllref = tcc_mallocz(sizeof(DLLReference) + strlen(soname));
dllref->level = level;
strcpy(dllref->name, soname);
dynarray_add((void ***)&s1->loaded_dlls, &s1->nb_loaded_dlls, dllref);
dynarray_add(&s1->loaded_dlls, &s1->nb_loaded_dlls, dllref);
/* add dynamic symbols in dynsym_section */
for(i = 1, sym = dynsym + 1; i < nb_syms; i++, sym++) {
@ -2825,9 +2824,9 @@ static int ld_add_file_list(TCCState *s1, const char *cmd, int as_needed)
goto lib_parse_error;
if (group) {
/* Add the filename *and* the libname to avoid future conversions */
dynarray_add((void ***) &libs, &nblibs, tcc_strdup(filename));
dynarray_add(&libs, &nblibs, tcc_strdup(filename));
if (libname[0] != '\0')
dynarray_add((void ***) &libs, &nblibs, tcc_strdup(libname));
dynarray_add(&libs, &nblibs, tcc_strdup(libname));
}
}
}