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revert 'no-libtcc1' feature

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from 43ae350390
and a3578379fb

Sorry, but this feature appears to be rather a personal
experiment than generically interesting for other people.
Also those "other people" always have some interest in
TCC staying simple.

One can still avoid the startup code from libtcc1.a simply
by providing __start explicitly.

While at it: Tidy tccpe.c:pe_add_runtime(), somewhat.
This commit is contained in:
grischka
2020-09-17 10:32:48 +02:00
parent 4cd6298f9d
commit aed5cd0ce9
2 changed files with 27 additions and 36 deletions
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58
tccpe.c
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@@ -1855,48 +1855,41 @@ ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack)
static void tcc_add_support(TCCState *s1, const char *filename)
{
if (!filename || strlen(filename)==0) return;
if (tcc_add_dll(s1, filename, 0) < 0)
tcc_error_noabort("%s not found", filename);
}
static void pe_add_runtime(TCCState *s1, struct pe_info *pe)
{
const char *start_symbol = NULL;
int pe_type = 0;
int unicode_entry = 0;
const char *start_symbol;
int pe_type;
if (find_elf_sym(symtab_section, PE_STDSYM("WinMain","@16")))
pe_type = PE_GUI;
else
if (find_elf_sym(symtab_section, PE_STDSYM("wWinMain","@16"))) {
pe_type = PE_GUI;
unicode_entry = PE_GUI;
}
else
if (TCC_OUTPUT_DLL == s1->output_type) {
pe_type = PE_DLL;
}
else {
pe_type = PE_EXE;
if (find_elf_sym(symtab_section, "wmain"))
unicode_entry = PE_EXE;
else
/* use main() directly when TCC1 is "" */
if (strlen(TCC_LIBTCC1)==0){
start_symbol = "_main";
}
}
start_symbol = PE_STDSYM("__dllstart","@12");
} else {
const char *run_symbol;
if (find_elf_sym(symtab_section, PE_STDSYM("WinMain","@16"))) {
start_symbol = "__winstart";
run_symbol = "__runwinmain";
pe_type = PE_GUI;
} else if (find_elf_sym(symtab_section, PE_STDSYM("wWinMain","@16"))) {
start_symbol = "__wwinstart";
run_symbol = "__runwwinmain";
pe_type = PE_GUI;
} else if (find_elf_sym(symtab_section, "wmain")) {
start_symbol = "__wstart";
run_symbol = "__runwmain";
pe_type = PE_EXE;
} else {
start_symbol = "__start";
run_symbol = "__runmain";
pe_type = PE_EXE;
if(!start_symbol)
start_symbol =
TCC_OUTPUT_MEMORY == s1->output_type
? PE_GUI == pe_type ? (unicode_entry ? "__runwwinmain" : "__runwinmain")
: (unicode_entry ? "__runwmain" : "__runmain")
: PE_DLL == pe_type ? PE_STDSYM("__dllstart","@12")
: PE_GUI == pe_type ? (unicode_entry ? "__wwinstart": "__winstart")
: (unicode_entry ? "__wstart" : "__start")
;
}
if (TCC_OUTPUT_MEMORY == s1->output_type)
start_symbol = run_symbol;
}
pe->start_symbol = start_symbol + 1;
if (!s1->leading_underscore || strchr(start_symbol, '@'))
@@ -2053,5 +2046,4 @@ ST_FUNC int pe_output_file(TCCState *s1, const char *filename)
}
/* ------------------------------------------------------------- */
/* vim: set expandtab ts=4 sw=4 sts=4 tw=80 :*/