diff options
Diffstat (limited to 'tcccoff.c')
| -rw-r--r-- | tcccoff.c | 948 |
1 files changed, 948 insertions, 0 deletions
diff --git a/tcccoff.c b/tcccoff.c new file mode 100644 index 0000000..1421ca2 --- /dev/null +++ b/tcccoff.c @@ -0,0 +1,948 @@ +/* + * COFF file handling for TCC + * + * Copyright (c) 2003, 2004 TK + * Copyright (c) 2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +#define MAXNSCNS 255 /* MAXIMUM NUMBER OF SECTIONS */ +#define MAX_STR_TABLE 1000000 +AOUTHDR o_filehdr; /* OPTIONAL (A.OUT) FILE HEADER */ + +SCNHDR section_header[MAXNSCNS]; + +#define MAX_FUNCS 1000 +#define MAX_FUNC_NAME_LENGTH 128 + +int nFuncs; +char Func[MAX_FUNCS][MAX_FUNC_NAME_LENGTH]; +char AssociatedFile[MAX_FUNCS][MAX_FUNC_NAME_LENGTH]; +int LineNoFilePtr[MAX_FUNCS]; +int EndAddress[MAX_FUNCS]; +int LastLineNo[MAX_FUNCS]; +int FuncEntries[MAX_FUNCS]; + +int OutputTheSection(Section * sect); +short int GetCoffFlags(const char *s); +void SortSymbolTable(void); +Section *FindSection(TCCState * s1, const char *sname); + +int C67_main_entry_point; + +int FindCoffSymbolIndex(const char *func_name); +int nb_syms; + +typedef struct { + long tag; + long size; + long fileptr; + long nextsym; + short int dummy; +} AUXFUNC; + +typedef struct { + long regmask; + unsigned short lineno; + unsigned short nentries; + int localframe; + int nextentry; + short int dummy; +} AUXBF; + +typedef struct { + long dummy; + unsigned short lineno; + unsigned short dummy1; + int dummy2; + int dummy3; + unsigned short dummy4; +} AUXEF; + +ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f) +{ + Section *tcc_sect; + SCNHDR *coff_sec; + int file_pointer; + char *Coff_str_table, *pCoff_str_table; + int CoffTextSectionNo, coff_nb_syms; + FILHDR file_hdr; /* FILE HEADER STRUCTURE */ + Section *stext, *sdata, *sbss; + int i, NSectionsToOutput = 0; + + Coff_str_table = pCoff_str_table = NULL; + + stext = FindSection(s1, ".text"); + sdata = FindSection(s1, ".data"); + sbss = FindSection(s1, ".bss"); + + nb_syms = symtab_section->data_offset / sizeof(Elf32_Sym); + coff_nb_syms = FindCoffSymbolIndex("XXXXXXXXXX1"); + + file_hdr.f_magic = COFF_C67_MAGIC; /* magic number */ + file_hdr.f_timdat = 0; /* time & date stamp */ + file_hdr.f_opthdr = sizeof(AOUTHDR); /* sizeof(optional hdr) */ + file_hdr.f_flags = 0x1143; /* flags (copied from what code composer does) */ + file_hdr.f_TargetID = 0x99; /* for C6x = 0x0099 */ + + o_filehdr.magic = 0x0108; /* see magic.h */ + o_filehdr.vstamp = 0x0190; /* version stamp */ + o_filehdr.tsize = stext->data_offset; /* text size in bytes, padded to FW bdry */ + o_filehdr.dsize = sdata->data_offset; /* initialized data " " */ + o_filehdr.bsize = sbss->data_offset; /* uninitialized data " " */ + o_filehdr.entrypt = C67_main_entry_point; /* entry pt. */ + o_filehdr.text_start = stext->sh_addr; /* base of text used for this file */ + o_filehdr.data_start = sdata->sh_addr; /* base of data used for this file */ + + + // create all the section headers + + file_pointer = FILHSZ + sizeof(AOUTHDR); + + CoffTextSectionNo = -1; + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + NSectionsToOutput++; + + if (CoffTextSectionNo == -1 && tcc_sect == stext) + CoffTextSectionNo = NSectionsToOutput; // rem which coff sect number the .text sect is + + strcpy(coff_sec->s_name, tcc_sect->name); /* section name */ + + coff_sec->s_paddr = tcc_sect->sh_addr; /* physical address */ + coff_sec->s_vaddr = tcc_sect->sh_addr; /* virtual address */ + coff_sec->s_size = tcc_sect->data_offset; /* section size */ + coff_sec->s_scnptr = 0; /* file ptr to raw data for section */ + coff_sec->s_relptr = 0; /* file ptr to relocation */ + coff_sec->s_lnnoptr = 0; /* file ptr to line numbers */ + coff_sec->s_nreloc = 0; /* number of relocation entries */ + coff_sec->s_flags = GetCoffFlags(coff_sec->s_name); /* flags */ + coff_sec->s_reserved = 0; /* reserved byte */ + coff_sec->s_page = 0; /* memory page id */ + + file_pointer += sizeof(SCNHDR); + } + } + + file_hdr.f_nscns = NSectionsToOutput; /* number of sections */ + + // now loop through and determine file pointer locations + // for the raw data + + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + // put raw data + coff_sec->s_scnptr = file_pointer; /* file ptr to raw data for section */ + file_pointer += coff_sec->s_size; + } + } + + // now loop through and determine file pointer locations + // for the relocation data + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + // put relocations data + if (coff_sec->s_nreloc > 0) { + coff_sec->s_relptr = file_pointer; /* file ptr to relocation */ + file_pointer += coff_sec->s_nreloc * sizeof(struct reloc); + } + } + } + + // now loop through and determine file pointer locations + // for the line number data + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + coff_sec->s_nlnno = 0; + coff_sec->s_lnnoptr = 0; + + if (s1->do_debug && tcc_sect == stext) { + // count how many line nos data + + // also find association between source file name and function + // so we can sort the symbol table + + + Stab_Sym *sym, *sym_end; + char func_name[MAX_FUNC_NAME_LENGTH], + last_func_name[MAX_FUNC_NAME_LENGTH]; + unsigned long func_addr, last_pc, pc; + const char *incl_files[INCLUDE_STACK_SIZE]; + int incl_index, len, last_line_num; + const char *str, *p; + + coff_sec->s_lnnoptr = file_pointer; /* file ptr to linno */ + + + func_name[0] = '\0'; + func_addr = 0; + incl_index = 0; + last_func_name[0] = '\0'; + last_pc = 0xffffffff; + last_line_num = 1; + sym = (Stab_Sym *) stab_section->data + 1; + sym_end = + (Stab_Sym *) (stab_section->data + + stab_section->data_offset); + + nFuncs = 0; + while (sym < sym_end) { + switch (sym->n_type) { + /* function start or end */ + case N_FUN: + if (sym->n_strx == 0) { + // end of function + + coff_sec->s_nlnno++; + file_pointer += LINESZ; + + pc = sym->n_value + func_addr; + func_name[0] = '\0'; + func_addr = 0; + EndAddress[nFuncs] = pc; + FuncEntries[nFuncs] = + (file_pointer - + LineNoFilePtr[nFuncs]) / LINESZ - 1; + LastLineNo[nFuncs++] = last_line_num + 1; + } else { + // beginning of function + + LineNoFilePtr[nFuncs] = file_pointer; + coff_sec->s_nlnno++; + file_pointer += LINESZ; + + str = + (const char *) stabstr_section->data + + sym->n_strx; + + p = strchr(str, ':'); + if (!p) { + pstrcpy(func_name, sizeof(func_name), str); + pstrcpy(Func[nFuncs], sizeof(func_name), str); + } else { + len = p - str; + if (len > sizeof(func_name) - 1) + len = sizeof(func_name) - 1; + memcpy(func_name, str, len); + memcpy(Func[nFuncs], str, len); + func_name[len] = '\0'; + } + + // save the file that it came in so we can sort later + pstrcpy(AssociatedFile[nFuncs], sizeof(func_name), + incl_files[incl_index - 1]); + + func_addr = sym->n_value; + } + break; + + /* line number info */ + case N_SLINE: + pc = sym->n_value + func_addr; + + last_pc = pc; + last_line_num = sym->n_desc; + + /* XXX: slow! */ + strcpy(last_func_name, func_name); + + coff_sec->s_nlnno++; + file_pointer += LINESZ; + break; + /* include files */ + case N_BINCL: + str = + (const char *) stabstr_section->data + sym->n_strx; + add_incl: + if (incl_index < INCLUDE_STACK_SIZE) { + incl_files[incl_index++] = str; + } + break; + case N_EINCL: + if (incl_index > 1) + incl_index--; + break; + case N_SO: + if (sym->n_strx == 0) { + incl_index = 0; /* end of translation unit */ + } else { + str = + (const char *) stabstr_section->data + + sym->n_strx; + /* do not add path */ + len = strlen(str); + if (len > 0 && str[len - 1] != '/') + goto add_incl; + } + break; + } + sym++; + } + } + + } + + file_hdr.f_symptr = file_pointer; /* file pointer to symtab */ + + if (s1->do_debug) + file_hdr.f_nsyms = coff_nb_syms; /* number of symtab entries */ + else + file_hdr.f_nsyms = 0; + + file_pointer += file_hdr.f_nsyms * SYMNMLEN; + + // OK now we are all set to write the file + + + fwrite(&file_hdr, FILHSZ, 1, f); + fwrite(&o_filehdr, sizeof(o_filehdr), 1, f); + + // write section headers + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + fwrite(coff_sec, sizeof(SCNHDR), 1, f); + } + } + + // write raw data + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + fwrite(tcc_sect->data, tcc_sect->data_offset, 1, f); + } + } + + // write relocation data + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + // put relocations data + if (coff_sec->s_nreloc > 0) { + fwrite(tcc_sect->reloc, + coff_sec->s_nreloc * sizeof(struct reloc), 1, f); + } + } + } + + + // group the symbols in order of filename, func1, func2, etc + // finally global symbols + + if (s1->do_debug) + SortSymbolTable(); + + // write line no data + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (s1->do_debug && tcc_sect == stext) { + // count how many line nos data + + + Stab_Sym *sym, *sym_end; + char func_name[128], last_func_name[128]; + unsigned long func_addr, last_pc, pc; + const char *incl_files[INCLUDE_STACK_SIZE]; + int incl_index, len, last_line_num; + const char *str, *p; + + LINENO CoffLineNo; + + func_name[0] = '\0'; + func_addr = 0; + incl_index = 0; + last_func_name[0] = '\0'; + last_pc = 0; + last_line_num = 1; + sym = (Stab_Sym *) stab_section->data + 1; + sym_end = + (Stab_Sym *) (stab_section->data + + stab_section->data_offset); + + while (sym < sym_end) { + switch (sym->n_type) { + /* function start or end */ + case N_FUN: + if (sym->n_strx == 0) { + // end of function + + CoffLineNo.l_addr.l_paddr = last_pc; + CoffLineNo.l_lnno = last_line_num + 1; + fwrite(&CoffLineNo, 6, 1, f); + + pc = sym->n_value + func_addr; + func_name[0] = '\0'; + func_addr = 0; + } else { + // beginning of function + + str = + (const char *) stabstr_section->data + + sym->n_strx; + + + p = strchr(str, ':'); + if (!p) { + pstrcpy(func_name, sizeof(func_name), str); + } else { + len = p - str; + if (len > sizeof(func_name) - 1) + len = sizeof(func_name) - 1; + memcpy(func_name, str, len); + func_name[len] = '\0'; + } + func_addr = sym->n_value; + last_pc = func_addr; + last_line_num = -1; + + // output a function begin + + CoffLineNo.l_addr.l_symndx = + FindCoffSymbolIndex(func_name); + CoffLineNo.l_lnno = 0; + + fwrite(&CoffLineNo, 6, 1, f); + } + break; + + /* line number info */ + case N_SLINE: + pc = sym->n_value + func_addr; + + + /* XXX: slow! */ + strcpy(last_func_name, func_name); + + // output a line reference + + CoffLineNo.l_addr.l_paddr = last_pc; + + if (last_line_num == -1) { + CoffLineNo.l_lnno = sym->n_desc; + } else { + CoffLineNo.l_lnno = last_line_num + 1; + } + + fwrite(&CoffLineNo, 6, 1, f); + + last_pc = pc; + last_line_num = sym->n_desc; + + break; + + /* include files */ + case N_BINCL: + str = + (const char *) stabstr_section->data + sym->n_strx; + add_incl2: + if (incl_index < INCLUDE_STACK_SIZE) { + incl_files[incl_index++] = str; + } + break; + case N_EINCL: + if (incl_index > 1) + incl_index--; + break; + case N_SO: + if (sym->n_strx == 0) { + incl_index = 0; /* end of translation unit */ + } else { + str = + (const char *) stabstr_section->data + + sym->n_strx; + /* do not add path */ + len = strlen(str); + if (len > 0 && str[len - 1] != '/') + goto add_incl2; + } + break; + } + sym++; + } + } + } + + // write symbol table + if (s1->do_debug) { + int k; + struct syment csym; + AUXFUNC auxfunc; + AUXBF auxbf; + AUXEF auxef; + int i; + Elf32_Sym *p; + const char *name; + int nstr; + int n = 0; + + Coff_str_table = (char *) tcc_malloc(MAX_STR_TABLE); + pCoff_str_table = Coff_str_table; + nstr = 0; + + p = (Elf32_Sym *) symtab_section->data; + + + for (i = 0; i < nb_syms; i++) { + + name = symtab_section->link->data + p->st_name; + + for (k = 0; k < 8; k++) + csym._n._n_name[k] = 0; + + if (strlen(name) <= 8) { + strcpy(csym._n._n_name, name); + } else { + if (pCoff_str_table - Coff_str_table + strlen(name) > + MAX_STR_TABLE - 1) + tcc_error("String table too large"); + + csym._n._n_n._n_zeroes = 0; + csym._n._n_n._n_offset = + pCoff_str_table - Coff_str_table + 4; + + strcpy(pCoff_str_table, name); + pCoff_str_table += strlen(name) + 1; // skip over null + nstr++; + } + + if (p->st_info == 4) { + // put a filename symbol + csym.n_value = 33; // ????? + csym.n_scnum = N_DEBUG; + csym.n_type = 0; + csym.n_sclass = C_FILE; + csym.n_numaux = 0; + fwrite(&csym, 18, 1, f); + n++; + + } else if (p->st_info == 0x12) { + // find the function data + + for (k = 0; k < nFuncs; k++) { + if (strcmp(name, Func[k]) == 0) + break; + } + + if (k >= nFuncs) { + tcc_error("debug info can't find function: %s", name); + } + // put a Function Name + + csym.n_value = p->st_value; // physical address + csym.n_scnum = CoffTextSectionNo; + csym.n_type = MKTYPE(T_INT, DT_FCN, 0, 0, 0, 0, 0); + csym.n_sclass = C_EXT; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + // now put aux info + + auxfunc.tag = 0; + auxfunc.size = EndAddress[k] - p->st_value; + auxfunc.fileptr = LineNoFilePtr[k]; + auxfunc.nextsym = n + 6; // tktk + auxfunc.dummy = 0; + fwrite(&auxfunc, 18, 1, f); + + // put a .bf + + strcpy(csym._n._n_name, ".bf"); + csym.n_value = p->st_value; // physical address + csym.n_scnum = CoffTextSectionNo; + csym.n_type = 0; + csym.n_sclass = C_FCN; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + // now put aux info + + auxbf.regmask = 0; + auxbf.lineno = 0; + auxbf.nentries = FuncEntries[k]; + auxbf.localframe = 0; + auxbf.nextentry = n + 6; + auxbf.dummy = 0; + fwrite(&auxbf, 18, 1, f); + + // put a .ef + + strcpy(csym._n._n_name, ".ef"); + csym.n_value = EndAddress[k]; // physical address + csym.n_scnum = CoffTextSectionNo; + csym.n_type = 0; + csym.n_sclass = C_FCN; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + // now put aux info + + auxef.dummy = 0; + auxef.lineno = LastLineNo[k]; + auxef.dummy1 = 0; + auxef.dummy2 = 0; + auxef.dummy3 = 0; + auxef.dummy4 = 0; + fwrite(&auxef, 18, 1, f); + + n += 6; + + } else { + // try an put some type info + + if ((p->st_other & VT_BTYPE) == VT_DOUBLE) { + csym.n_type = T_DOUBLE; // int + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_FLOAT) { + csym.n_type = T_FLOAT; + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_INT) { + csym.n_type = T_INT; // int + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_SHORT) { + csym.n_type = T_SHORT; + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_BYTE) { + csym.n_type = T_CHAR; + csym.n_sclass = C_EXT; + } else { + csym.n_type = T_INT; // just mark as a label + csym.n_sclass = C_LABEL; + } + + + csym.n_value = p->st_value; + csym.n_scnum = 2; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + auxfunc.tag = 0; + auxfunc.size = 0x20; + auxfunc.fileptr = 0; + auxfunc.nextsym = 0; + auxfunc.dummy = 0; + fwrite(&auxfunc, 18, 1, f); + n++; + n++; + + } + + p++; + } + } + + if (s1->do_debug) { + // write string table + + // first write the size + i = pCoff_str_table - Coff_str_table; + fwrite(&i, 4, 1, f); + + // then write the strings + fwrite(Coff_str_table, i, 1, f); + + tcc_free(Coff_str_table); + } + + return 0; +} + + + +// group the symbols in order of filename, func1, func2, etc +// finally global symbols + +void SortSymbolTable(void) +{ + int i, j, k, n = 0; + Elf32_Sym *p, *p2, *NewTable; + char *name, *name2; + + NewTable = (Elf32_Sym *) tcc_malloc(nb_syms * sizeof(Elf32_Sym)); + + p = (Elf32_Sym *) symtab_section->data; + + + // find a file symbol, copy it over + // then scan the whole symbol list and copy any function + // symbols that match the file association + + for (i = 0; i < nb_syms; i++) { + if (p->st_info == 4) { + name = (char *) symtab_section->link->data + p->st_name; + + // this is a file symbol, copy it over + + NewTable[n++] = *p; + + p2 = (Elf32_Sym *) symtab_section->data; + + for (j = 0; j < nb_syms; j++) { + if (p2->st_info == 0x12) { + // this is a func symbol + + name2 = + (char *) symtab_section->link->data + p2->st_name; + + // find the function data index + + for (k = 0; k < nFuncs; k++) { + if (strcmp(name2, Func[k]) == 0) + break; + } + + if (k >= nFuncs) { + tcc_error("debug (sort) info can't find function: %s", name2); + } + + if (strcmp(AssociatedFile[k], name) == 0) { + // yes they match copy it over + + NewTable[n++] = *p2; + } + } + p2++; + } + } + p++; + } + + // now all the filename and func symbols should have been copied over + // copy all the rest over (all except file and funcs) + + p = (Elf32_Sym *) symtab_section->data; + for (i = 0; i < nb_syms; i++) { + if (p->st_info != 4 && p->st_info != 0x12) { + NewTable[n++] = *p; + } + p++; + } + + if (n != nb_syms) + tcc_error("Internal Compiler error, debug info"); + + // copy it all back + + p = (Elf32_Sym *) symtab_section->data; + for (i = 0; i < nb_syms; i++) { + *p++ = NewTable[i]; + } + + tcc_free(NewTable); +} + + +int FindCoffSymbolIndex(const char *func_name) +{ + int i, n = 0; + Elf32_Sym *p; + char *name; + + p = (Elf32_Sym *) symtab_section->data; + + for (i = 0; i < nb_syms; i++) { + + name = (char *) symtab_section->link->data + p->st_name; + + if (p->st_info == 4) { + // put a filename symbol + n++; + } else if (p->st_info == 0x12) { + + if (strcmp(func_name, name) == 0) + return n; + + n += 6; + + // put a Function Name + + // now put aux info + + // put a .bf + + // now put aux info + + // put a .ef + + // now put aux info + + } else { + n += 2; + } + + p++; + } + + return n; // total number of symbols +} + +int OutputTheSection(Section * sect) +{ + const char *s = sect->name; + + if (!strcmp(s, ".text")) + return 1; + else if (!strcmp(s, ".data")) + return 1; + else + return 0; +} + +short int GetCoffFlags(const char *s) +{ + if (!strcmp(s, ".text")) + return STYP_TEXT | STYP_DATA | STYP_ALIGN | 0x400; + else if (!strcmp(s, ".data")) + return STYP_DATA; + else if (!strcmp(s, ".bss")) + return STYP_BSS; + else if (!strcmp(s, ".stack")) + return STYP_BSS | STYP_ALIGN | 0x200; + else if (!strcmp(s, ".cinit")) + return STYP_COPY | STYP_DATA | STYP_ALIGN | 0x200; + else + return 0; +} + +Section *FindSection(TCCState * s1, const char *sname) +{ + Section *s; + int i; + + for (i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + + if (!strcmp(sname, s->name)) + return s; + } + + tcc_error("could not find section %s", sname); + return 0; +} + +ST_FUNC int tcc_load_coff(TCCState * s1, int fd) +{ +// tktk TokenSym *ts; + + FILE *f; + unsigned int str_size; + char *Coff_str_table, *name; + int i, k; + struct syment csym; + char name2[9]; + FILHDR file_hdr; /* FILE HEADER STRUCTURE */ + + f = fdopen(fd, "rb"); + if (!f) { + tcc_error("Unable to open .out file for input"); + } + + if (fread(&file_hdr, FILHSZ, 1, f) != 1) + tcc_error("error reading .out file for input"); + + if (fread(&o_filehdr, sizeof(o_filehdr), 1, f) != 1) + tcc_error("error reading .out file for input"); + + // first read the string table + + if (fseek(f, file_hdr.f_symptr + file_hdr.f_nsyms * SYMESZ, SEEK_SET)) + tcc_error("error reading .out file for input"); + + if (fread(&str_size, sizeof(int), 1, f) != 1) + tcc_error("error reading .out file for input"); + + + Coff_str_table = (char *) tcc_malloc(str_size); + + if (fread(Coff_str_table, str_size - 4, 1, f) != 1) + tcc_error("error reading .out file for input"); + + // read/process all the symbols + + // seek back to symbols + + if (fseek(f, file_hdr.f_symptr, SEEK_SET)) + tcc_error("error reading .out file for input"); + + for (i = 0; i < file_hdr.f_nsyms; i++) { + if (fread(&csym, SYMESZ, 1, f) != 1) + tcc_error("error reading .out file for input"); + + if (csym._n._n_n._n_zeroes == 0) { + name = Coff_str_table + csym._n._n_n._n_offset - 4; + } else { + name = csym._n._n_name; + + if (name[7] != 0) { + for (k = 0; k < 8; k++) + name2[k] = name[k]; + + name2[8] = 0; + + name = name2; + } + } +// if (strcmp("_DAC_Buffer",name)==0) // tktk +// name[0]=0; + + if (((csym.n_type & 0x30) == 0x20 && csym.n_sclass == 0x2) || ((csym.n_type & 0x30) == 0x30 && csym.n_sclass == 0x2) || (csym.n_type == 0x4 && csym.n_sclass == 0x2) || (csym.n_type == 0x8 && csym.n_sclass == 0x2) || // structures + (csym.n_type == 0x18 && csym.n_sclass == 0x2) || // pointer to structure + (csym.n_type == 0x7 && csym.n_sclass == 0x2) || // doubles + (csym.n_type == 0x6 && csym.n_sclass == 0x2)) // floats + { + // strip off any leading underscore (except for other main routine) + + if (name[0] == '_' && strcmp(name, "_main") != 0) + name++; + + tcc_add_symbol(s1, name, (void*)(uintptr_t)csym.n_value); + } + // skip any aux records + + if (csym.n_numaux == 1) { + if (fread(&csym, SYMESZ, 1, f) != 1) + tcc_error("error reading .out file for input"); + i++; + } + } + + return 0; +} |