diff options
Diffstat (limited to 'patches/nasm_host-2.16.01.local.patch')
| -rw-r--r-- | patches/nasm_host-2.16.01.local.patch | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/patches/nasm_host-2.16.01.local.patch b/patches/nasm_host-2.16.01.local.patch new file mode 100644 index 00000000..5e61a289 --- /dev/null +++ b/patches/nasm_host-2.16.01.local.patch @@ -0,0 +1,146 @@ +diff --git nasm-2.16.01/output/outcoff.c.orig nasm-2.16.01/output/outcoff.c +index c2b4eb6..fc57c1e 100644 +--- nasm-2.16.01/output/outcoff.c.orig ++++ nasm-2.16.01/output/outcoff.c +@@ -820,6 +820,7 @@ static void coff_sect_write(struct coff_Section *sect, + sect->len += len; + } + ++#ifndef COFF_MIDIPIX + typedef struct tagString { + struct tagString *next; + int len; +@@ -884,6 +885,98 @@ static void BuildExportTable(STRING **rvp) + + *rvp = NULL; + } ++#else ++typedef struct tagGlobalSymbol { ++ struct tagGlobalSymbol *next; ++ struct coff_Symbol *sym; ++} GLOBALSYMBOL; ++typedef struct tagGlobalSymbolList { ++ GLOBALSYMBOL *head, *tail; ++} GLOBALSYMBOLLIST; ++ ++#define GOT_SECTION_FLAGS \ ++ (IMAGE_SCN_CNT_INITIALIZED_DATA | \ ++ IMAGE_SCN_ALIGN_4BYTES | \ ++ IMAGE_SCN_LNK_COMDAT | \ ++ IMAGE_SCN_MEM_READ) ++#define GOT_SECTION_PREFIX ".got$" ++#define GOT_SECTION_PREFIX_LEN (sizeof(GOT_SECTION_PREFIX) - 1) ++#define GOT_SYMBOL_PREFIX "__imp_" ++#define GOT_SYMBOL_PREFIX_LEN (sizeof(GOT_SYMBOL_PREFIX) - 1) ++ ++static void BuildGlobalOffsetTable(void) ++{ ++ uint64_t global_sym_addr; ++ GLOBALSYMBOL *global_sym, *global_sym_next; ++ char *global_sym_name; ++ GLOBALSYMBOLLIST global_symbols = {NULL, NULL}; ++ char *got_sec_name, *got_sym_name; ++ size_t got_sec_name_len, got_sym_name_len; ++ struct coff_Symbol *sym; ++ unsigned long sym_num; ++ ++ saa_rewind(coff_syms); ++ for (sym_num = 0; sym_num < coff_nsyms; sym_num++) { ++ sym = saa_rstruct(coff_syms); ++ if (sym->is_global && sym->section > 0) { ++ global_sym = nasm_malloc(sizeof(*global_sym)); ++ global_sym->next = NULL; ++ global_sym->sym = sym; ++ if (!global_symbols.head) ++ global_symbols.head = global_sym; ++ if (global_symbols.tail) ++ global_symbols.tail->next = global_sym; ++ global_symbols.tail = global_sym; ++ } ++ } ++ ++ for (global_sym = global_symbols.head, global_sym_next = NULL; global_sym; global_sym = global_sym_next) { ++ global_sym_name = nasm_zalloc(global_sym->sym->namlen + 1); ++ if (global_sym->sym->namlen > 8) ++ saa_fread(coff_strs, global_sym->sym->strpos - 4, global_sym_name, global_sym->sym->namlen); ++ else ++ strcpy(global_sym_name, global_sym->sym->name); ++ ++ got_sec_name_len = GOT_SECTION_PREFIX_LEN + global_sym->sym->namlen; ++ got_sym_name_len = GOT_SYMBOL_PREFIX_LEN + global_sym->sym->namlen; ++ got_sec_name = nasm_zalloc(got_sec_name_len + 1); ++ got_sym_name = nasm_zalloc(got_sym_name_len + 1); ++ snprintf(got_sec_name, got_sec_name_len + 1, "%s%s", GOT_SECTION_PREFIX, global_sym_name); ++ snprintf(got_sym_name, got_sym_name_len + 1, "%s%s", GOT_SYMBOL_PREFIX, global_sym_name); ++ ++ sym_num = coff_nsyms - 1; ++ sym = saa_wstruct(coff_syms); ++ sym->is_global = 1; ++ sym->namlen = got_sym_name_len; ++ sym->section = coff_make_section(got_sec_name, GOT_SECTION_FLAGS) + 1; ++ sym->type = 0; sym->value = 0; ++ coff_nsyms++; ++ ++ if (sym->namlen > 8) { ++ sym->strpos = strslen + 4; ++ memset(sym->name, '\0', sizeof(sym->name)); ++ saa_wbytes(coff_strs, got_sym_name, sym->namlen + 1); ++ strslen += sym->namlen + 1; ++ } else { ++ sym->strpos = -1; ++ strncpy(sym->name, got_sym_name, sizeof(sym->name)); ++ } ++ ++ if (win64) { ++ coff_add_reloc(coff_sects[sym->section - 1], coff_sects[global_sym->sym->section - 1]->index, IMAGE_REL_AMD64_ADDR64); ++ global_sym_addr = (uint64_t)global_sym->sym->value; ++ coff_sect_write(coff_sects[sym->section - 1], (const uint8_t *)&global_sym_addr, sizeof(global_sym_addr)); ++ } else { ++ coff_add_reloc(coff_sects[sym->section - 1], coff_sects[global_sym->sym->section - 1]->index, IMAGE_REL_I386_DIR32); ++ coff_sect_write(coff_sects[sym->section - 1], (const uint8_t *)&global_sym->sym->value, sizeof(global_sym->sym->value)); ++ } ++ ++ global_sym_next = global_sym->next; ++ nasm_free(global_sym); nasm_free(global_sym_name); ++ nasm_free(got_sec_name); nasm_free(got_sym_name); ++ } ++} ++#endif + + static void coff_defcomdatname(char *name, int32_t segment) + { +@@ -924,7 +1017,9 @@ coff_directives(enum directive directive, char *value) + nasm_nonfatal("unrecognized export qualifier `%s'", q); + return DIRR_ERROR; + } ++#ifndef COFF_MIDIPIX + AddExport(name); ++#endif + return DIRR_OK; + } + case D_SAFESEH: +@@ -1039,8 +1134,12 @@ static void coff_write(void) + int32_t pos, sympos, vsize; + int i; + ++#ifndef COFF_MIDIPIX + /* fill in the .drectve section with -export's */ + BuildExportTable(&Exports); ++#else ++ BuildGlobalOffsetTable(); ++#endif + + if (win32) { + /* add default value for @feat.00, this allows to 'link /safeseh' */ +@@ -1278,7 +1377,10 @@ static void coff_write_symbols(void) + memset(filename, 0, 18); /* useful zeroed buffer */ + + for (i = 0; i < (uint32_t) coff_nsects; i++) { +- coff_symbol(coff_sects[i]->name, 0L, 0L, i + 1, 0, 3, 1); ++ if (coff_sects[i]->namepos == -1) ++ coff_symbol(coff_sects[i]->name, 0L, 0L, i + 1, 0, 3, 1); ++ else ++ coff_symbol(NULL, coff_sects[i]->namepos, 0L, i + 1, 0, 3, 1); + fwriteint32_t(coff_sects[i]->len, ofile); + fwriteint16_t(coff_sects[i]->nrelocs,ofile); + if (coff_sects[i]->flags & IMAGE_SCN_LNK_COMDAT) { |