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TCC: Add -nobss option to not include BSS sections in output file.

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git-svn-id: svn://kolibrios.org@8154 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Magomed Kostoev (mkostoevr) 2020-11-06 20:02:56 +00:00
parent 9c0ca4f346
commit 0fe740bca1
6 changed files with 162 additions and 151 deletions
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BIN
programs/develop/ktcc/trunk/bin/tcc
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2
programs/develop/ktcc/trunk/source/Makefile.kos32
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@ -1,7 +1,7 @@
CC = kos32-gcc
LD = kos32-ld
SDK_DIR:= $(abspath ../../../contrib/sdk)
SDK_DIR:= $(abspath ../../../../../contrib/sdk)
#gcc 4.8
#LDFLAGS = -static -nostdlib -T $(SDK_DIR)/sources/newlib/static.lds

15
programs/develop/ktcc/trunk/source/libtcc.c
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@ -1890,7 +1890,7 @@ static char *copy_linker_arg(const char *p)
/* set linker options */
static int tcc_set_linker(TCCState *s, const char *option)
{
{
while (option && *option) {
const char *p = option;
@ -2038,7 +2038,8 @@ enum {
TCC_OPTION_MD,
TCC_OPTION_MF,
TCC_OPTION_x,
TCC_OPTION_stack
TCC_OPTION_stack,
TCC_OPTION_nobss
};
#define TCC_OPTION_HAS_ARG 0x0001
@ -2100,6 +2101,7 @@ static const TCCOption tcc_options[] = {
{ "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG },
{ "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG },
{ "stack", TCC_OPTION_stack, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP},
{ "nobss", TCC_OPTION_nobss, 0 },
{ NULL, 0, 0 },
};
@ -2428,9 +2430,12 @@ ST_FUNC int tcc_parse_args1(TCCState *s, int argc, char **argv)
/* ignored */
break;
case TCC_OPTION_stack:
#ifdef TCC_TARGET_MEOS
s->pe_stack_size = strtoul(optarg+1, NULL, 10);
#endif
#ifdef TCC_TARGET_MEOS
s->pe_stack_size = strtoul(optarg+1, NULL, 10);
#endif
break;
case TCC_OPTION_nobss:
s->nobss = 1;
break;
default:
if (s->warn_unsupported) {

2
programs/develop/ktcc/trunk/source/tcc.c
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@ -128,6 +128,8 @@ static void help(void)
" -Bdir use 'dir' as tcc internal library and include path\n"
" -MD generate target dependencies for make\n"
" -MF depfile put generated dependencies here\n"
"For KolibriOS only:\n"
" -nobss do not emit BSS section into file\n"
);
}

1
programs/develop/ktcc/trunk/source/tcc.h
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@ -871,6 +871,7 @@ struct TCCState {
int do_bench; /* option -bench */
int gen_deps; /* option -MD */
char *deps_outfile; /* option -MF */
int nobss; /* option -nobss, omit BSS section (KolibriOS-only) */
ParseArgsState *parse_args_state;
};

293
programs/develop/ktcc/trunk/source/tccmeos.c
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@ -180,11 +180,11 @@ void assign_addresses(me_info* me)
{
si->sh_addr=addr;
addr+=si->data_size;
}
}
if (me->s1->pe_stack_size < 4096)
addr+=4096;
addr+=4096;
else
addr += me->s1->pe_stack_size;
addr += me->s1->pe_stack_size;
addr=(addr+4)&(~3);
me->header.stack=addr;
me->header.memory_size=addr;
@ -272,21 +272,24 @@ int tcc_output_me(TCCState* s1,const char *filename)
for(si=me.code_sections;si;si=si->next)
fwrite(si->data,1,si->data_size,f);
for (si=me.data_sections;si;si=si->next)
fwrite(si->data,1,si->data_size,f);
for (si=me.bss_sections;si;si=si->next)
fwrite(si->data,1,si->data_size,f);
if (!s1->nobss)
{
if (si->data == NULL)
for (si=me.bss_sections;si;si=si->next)
{
// printf("\nError! BSS data is NULL! size:%i",(int)si->data_size);
si->data = calloc(si->data_size, 1);
}
fwrite(si->data, 1, si->data_size, f);
}
/*
if (me.bss_sections) // Siemargl testin, what we lose
{
if (si->data == NULL)
{
// printf("\nError! BSS data is NULL! size:%i",(int)si->data_size);
si->data = calloc(si->data_size, 1);
}
fwrite(si->data, 1, si->data_size, f);
}
}
/*
if (me.bss_sections) // Siemargl testin, what we lose
{
tcc_error_noabort("We lose .BSS section when linking KOS32 executable");
}
}
*/
fclose(f);
return 0;
@ -314,73 +317,73 @@ char *getcwd(char *buf, size_t size)
}
#endif
static FILE *src_file;
static int next_src_line;
void close_source_file()
{
if (src_file)
fclose(src_file);
src_file = NULL;
}
void load_source_file(char *fname)
{
close_source_file();
static FILE *src_file;
static int next_src_line;
void close_source_file()
{
if (src_file)
fclose(src_file);
src_file = NULL;
}
void load_source_file(char *fname)
{
close_source_file();
src_file = fopen(fname,"rt");
if (!src_file) return;
next_src_line = 1;
}
int get_src_lines(char *buf, int sz, int start, int end)
// 1 if read
{
char line[255], *ch;
strcpy(buf, "");
if (!src_file) return 0;
while (next_src_line < start) // skip
{
ch = fgets(line, sizeof line, src_file);
if (!ch) return 0;
next_src_line++;
}
while (next_src_line <= end)
{
ch = fgets(line, sizeof line, src_file);
if (!ch) return 0;
next_src_line++;
strncat(buf, line, sz - strlen(buf) - 1);
}
// remove newlines
for (ch = buf; *ch; ch++)
if (strchr("\t\n\r", *ch)) *ch = ' ';
return 1;
}
if (!src_file) return;
next_src_line = 1;
}
int get_src_lines(char *buf, int sz, int start, int end)
// 1 if read
{
char line[255], *ch;
strcpy(buf, "");
if (!src_file) return 0;
while (next_src_line < start) // skip
{
ch = fgets(line, sizeof line, src_file);
if (!ch) return 0;
next_src_line++;
}
while (next_src_line <= end)
{
ch = fgets(line, sizeof line, src_file);
if (!ch) return 0;
next_src_line++;
strncat(buf, line, sz - strlen(buf) - 1);
}
// remove newlines
for (ch = buf; *ch; ch++)
if (strchr("\t\n\r", *ch)) *ch = ' ';
return 1;
}
int tcc_output_dbgme(const char *filename, me_info* me)
// by Siemargl. Writes filename.dbg file for source code level debuggin with MTDBG
// return 1 on error
{
FILE *fdbg;
char fname[400],
buf[80]; // no more fits in mtdbg string
char fname[400],
buf[80]; // no more fits in mtdbg string
strcpy(fname, filename);
strcat(fname, ".dbg");
fdbg = fopen(fname,"wt");
if (!fdbg) return 1;
meos_section_info *si, *ss;
fputs(".text\n", fdbg); // just for mtbg
// print symbol table with resolved addresses
Elf32_Sym* esym;
for (esym = (Elf32_Sym*)symtab_section->data; esym <= (Elf32_Sym*)(symtab_section->data + symtab_section->data_offset); esym++)
{
if (esym->st_info == 0 || esym->st_info == 4) continue;
meos_section_info *si, *ss;
fputs(".text\n", fdbg); // just for mtbg
// print symbol table with resolved addresses
Elf32_Sym* esym;
for (esym = (Elf32_Sym*)symtab_section->data; esym <= (Elf32_Sym*)(symtab_section->data + symtab_section->data_offset); esym++)
{
if (esym->st_info == 0 || esym->st_info == 4) continue;
int sect = esym->st_shndx;
ss = findsection(me, sect);
const char *sym_name = strtab_section->data + esym->st_name;
@ -390,82 +393,82 @@ int tcc_output_dbgme(const char *filename, me_info* me)
continue;
}
fprintf(fdbg, "0x%X %s\n", ss->sh_addr + esym->st_value, sym_name); // removed type(%d) esym->st_info
}
fputs(".text source code links\n", fdbg); // just for mtbg
// print symbol table with resolved addresses
Stab_Sym *stab;
char *str = "", *cur_file = "???", cur_fun[255];
int cur_line = 0, cur_fun_addr = 0, fun_flag = 0;
strcpy(cur_fun, "fn???");
for (stab = (Stab_Sym*)stab_section->data; stab <= (Stab_Sym*)(stab_section->data + stab_section->data_offset); stab++)
{
str = "";
switch(stab->n_type)
{
case 100: // source file, or path
if (stab->n_strx)
{
cur_file = stabstr_section->data + stab->n_strx;
load_source_file(cur_file);
}
else
cur_file = "???";
strcpy(cur_fun, "fn???");
cur_line = 0;
cur_fun_addr = 0;
fun_flag = 0;
break;
case 36: // func
cur_fun_addr = 0;
if (stab->n_strx)
{
strcpy(cur_fun, stabstr_section->data + stab->n_strx);
str = strchr(cur_fun, ':');
if (str) *str = '\0';
cur_fun_addr = tcc_find_symbol_me(me, cur_fun);
cur_line = stab->n_desc;
fun_flag = 1;
//fprintf(fdbg, "0x%X %s() line(%d)\n", cur_fun_addr, cur_fun, cur_line); // commented as conflicted with direct address
}
else
strcpy(cur_fun, "fn???");
break;
case 68: // N_SLINE
if (stab->n_value == 0 ) continue; // skip zero offset line
if (fun_flag) // skip string {, as duplicates address
{
fun_flag = 0;
continue;
}
int line;
if (stab->n_desc > cur_line)
line = cur_line + 1;
else
line = cur_line;
//fprintf(fdbg, "0x%X LINES %d-%d \n", cur_fun_addr + stab->n_value, line, stab->n_desc);
if (get_src_lines(buf, sizeof buf, line, stab->n_desc))
fprintf(fdbg, "0x%X %s\n", cur_fun_addr + stab->n_value, buf);
cur_line = stab->n_desc;
break;
default:
continue;
}
/*
if (stab->n_strx)
str = stabstr_section->data + stab->n_strx;
fprintf(fdbg, "0x%X type(%d) str(%s) desc(%d)\n", stab->n_value, stab->n_type, str, stab->n_desc);
*/
}
/* for(; si; si = si->next)
{
Section *sr;
}
fputs(".text source code links\n", fdbg); // just for mtbg
// print symbol table with resolved addresses
Stab_Sym *stab;
char *str = "", *cur_file = "???", cur_fun[255];
int cur_line = 0, cur_fun_addr = 0, fun_flag = 0;
strcpy(cur_fun, "fn???");
for (stab = (Stab_Sym*)stab_section->data; stab <= (Stab_Sym*)(stab_section->data + stab_section->data_offset); stab++)
{
str = "";
switch(stab->n_type)
{
case 100: // source file, or path
if (stab->n_strx)
{
cur_file = stabstr_section->data + stab->n_strx;
load_source_file(cur_file);
}
else
cur_file = "???";
strcpy(cur_fun, "fn???");
cur_line = 0;
cur_fun_addr = 0;
fun_flag = 0;
break;
case 36: // func
cur_fun_addr = 0;
if (stab->n_strx)
{
strcpy(cur_fun, stabstr_section->data + stab->n_strx);
str = strchr(cur_fun, ':');
if (str) *str = '\0';
cur_fun_addr = tcc_find_symbol_me(me, cur_fun);
cur_line = stab->n_desc;
fun_flag = 1;
//fprintf(fdbg, "0x%X %s() line(%d)\n", cur_fun_addr, cur_fun, cur_line); // commented as conflicted with direct address
}
else
strcpy(cur_fun, "fn???");
break;
case 68: // N_SLINE
if (stab->n_value == 0 ) continue; // skip zero offset line
if (fun_flag) // skip string {, as duplicates address
{
fun_flag = 0;
continue;
}
int line;
if (stab->n_desc > cur_line)
line = cur_line + 1;
else
line = cur_line;
//fprintf(fdbg, "0x%X LINES %d-%d \n", cur_fun_addr + stab->n_value, line, stab->n_desc);
if (get_src_lines(buf, sizeof buf, line, stab->n_desc))
fprintf(fdbg, "0x%X %s\n", cur_fun_addr + stab->n_value, buf);
cur_line = stab->n_desc;
break;
default:
continue;
}
/*
if (stab->n_strx)
str = stabstr_section->data + stab->n_strx;
fprintf(fdbg, "0x%X type(%d) str(%s) desc(%d)\n", stab->n_value, stab->n_type, str, stab->n_desc);
*/
}
/* for(; si; si = si->next)
{
Section *sr;
Elf32_Rel *rel, *rel_end;
for(sr = me->s1->sections[si->sec_num]->reloc; sr; )
{
{
for (rel = (Elf32_Rel *) sr->data, rel_end = (Elf32_Rel *) (sr->data + sr->data_offset); rel < rel_end; rel++)
{
int type = ELF32_R_TYPE(rel->r_info);
@ -487,8 +490,8 @@ int tcc_output_dbgme(const char *filename, me_info* me)
fprintf(fdbg, "\t0x%X %s\n", ss->sh_addr + esym->st_value, sym_name);
}
}
}
*/
}
*/
close_source_file();
fclose(fdbg);
return 0;