mirror of
https://github.com/frida/tinycc
synced 2024-11-24 00:29:38 +03:00
various fixes and new options for PE format
This commit is contained in:
Frederic Feret
grischka
parent
526c464504
commit
2f73e42d87
4
libtcc.c
4
libtcc.c
@ -1944,6 +1944,10 @@ TCCState *tcc_new(void)
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/* XXX: currently the PE linker is not ready to support that */
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s->leading_underscore = 1;
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#endif
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if (s->section_align == 0)
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s->section_align = ELF_PAGE_SIZE;
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#ifdef TCC_TARGET_I386
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s->seg_size = 32;
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#endif
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39
tcc.c
39
tcc.c
@ -386,8 +386,47 @@ int parse_args(TCCState *s, int argc, char **argv)
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if (strstart(optarg, "-Ttext,", &p)) {
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s->text_addr = strtoul(p, NULL, 16);
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s->has_text_addr = 1;
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} else if (strstart(optarg, "--section-alignment,", &p)) {
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s->section_align = strtoul(p, NULL, 16);
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} else if (strstart(optarg, "--image-base,", &p)) {
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s->text_addr = strtoul(p, NULL, 16);
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s->has_text_addr = 1;
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#ifdef TCC_TARGET_PE
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} else if (strstart(optarg, "--file-alignment,", &p)) {
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s->pe_file_align = strtoul(p, NULL, 16);
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} else if (strstart(optarg, "--subsystem,", &p)) {
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#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
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if (!strcmp(p, "native"))
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s->pe_subsystem = 1;
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else if (!strcmp(p, "console"))
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s->pe_subsystem = 3;
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else if (!strcmp(p, "gui"))
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s->pe_subsystem = 2;
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else if (!strcmp(p, "posix"))
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s->pe_subsystem = 7;
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else if (!strcmp(p, "efiapp"))
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s->pe_subsystem = 10;
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else if (!strcmp(p, "efiboot"))
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s->pe_subsystem = 11;
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else if (!strcmp(p, "efiruntime"))
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s->pe_subsystem = 12;
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else if (!strcmp(p, "efirom"))
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s->pe_subsystem = 13;
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#endif
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else {
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error("invalid subsystem '%s'", p);
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}
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#endif
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} else if (strstart(optarg, "--oformat,", &p)) {
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#if defined(TCC_TARGET_PE)
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if (strstart(p, "pe-", NULL)) {
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#else
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#if defined(TCC_TARGET_X86_64)
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if (strstart(p, "elf64-", NULL)) {
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#else
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if (strstart(p, "elf32-", NULL)) {
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#endif
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#endif
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s->output_format = TCC_OUTPUT_FORMAT_ELF;
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} else if (!strcmp(p, "binary")) {
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s->output_format = TCC_OUTPUT_FORMAT_BINARY;
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9
tcc.h
9
tcc.h
@ -515,6 +515,15 @@ struct TCCState {
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int seg_size;
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#endif
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/* section alignment */
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unsigned long section_align;
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#ifdef TCC_TARGET_PE
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/* PE info */
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int pe_subsystem;
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unsigned long pe_file_align;
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#endif
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#ifndef TCC_TARGET_PE
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#ifdef TCC_TARGET_X86_64
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/* write PLT and GOT here */
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20
tccelf.c
20
tccelf.c
@ -1632,10 +1632,10 @@ int elf_output_file(TCCState *s1, const char *filename)
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addr = s1->text_addr;
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/* we ensure that (addr % ELF_PAGE_SIZE) == file_offset %
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ELF_PAGE_SIZE */
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a_offset = addr & (ELF_PAGE_SIZE - 1);
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p_offset = file_offset & (ELF_PAGE_SIZE - 1);
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a_offset = addr & (s1->section_align - 1);
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p_offset = file_offset & (s1->section_align - 1);
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if (a_offset < p_offset)
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a_offset += ELF_PAGE_SIZE;
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a_offset += s1->section_align;
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file_offset += (a_offset - p_offset);
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} else {
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if (file_type == TCC_OUTPUT_DLL)
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@ -1643,7 +1643,7 @@ int elf_output_file(TCCState *s1, const char *filename)
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else
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addr = ELF_START_ADDR;
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/* compute address after headers */
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addr += (file_offset & (ELF_PAGE_SIZE - 1));
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addr += (file_offset & (s1->section_align - 1));
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}
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/* dynamic relocation table information, for .dynamic section */
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@ -1661,7 +1661,7 @@ int elf_output_file(TCCState *s1, const char *filename)
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ph->p_flags = PF_R | PF_X;
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else
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ph->p_flags = PF_R | PF_W;
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ph->p_align = ELF_PAGE_SIZE;
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ph->p_align = s1->section_align;
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/* we do the following ordering: interp, symbol tables,
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relocations, progbits, nobits */
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@ -1731,12 +1731,12 @@ int elf_output_file(TCCState *s1, const char *filename)
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if (s1->output_format == TCC_OUTPUT_FORMAT_ELF) {
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/* if in the middle of a page, we duplicate the page in
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memory so that one copy is RX and the other is RW */
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if ((addr & (ELF_PAGE_SIZE - 1)) != 0)
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addr += ELF_PAGE_SIZE;
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if ((addr & (s1->section_align - 1)) != 0)
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addr += s1->section_align;
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} else {
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addr = (addr + ELF_PAGE_SIZE - 1) & ~(ELF_PAGE_SIZE - 1);
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file_offset = (file_offset + ELF_PAGE_SIZE - 1) &
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~(ELF_PAGE_SIZE - 1);
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addr = (addr + s1->section_align - 1) & ~(s1->section_align - 1);
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file_offset = (file_offset + s1->section_align - 1) &
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~(s1->section_align - 1);
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}
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}
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}
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46
tccpe.c
46
tccpe.c
@ -349,6 +349,9 @@ struct pe_info {
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DWORD iat_size;
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DWORD exp_offs;
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DWORD exp_size;
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int subsystem;
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DWORD section_align;
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DWORD file_align;
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struct section_info *sec_info;
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int sec_count;
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struct pe_import_info **imp_info;
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@ -417,14 +420,14 @@ ST_FN DWORD umax(DWORD a, DWORD b)
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return a < b ? b : a;
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}
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ST_FN DWORD pe_file_align(DWORD n)
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ST_FN DWORD pe_file_align(struct pe_info *pe, DWORD n)
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{
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return (n + (0x200 - 1)) & ~(0x200 - 1);
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return (n + (pe->file_align - 1)) & ~(pe->file_align - 1);
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}
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ST_FN DWORD pe_virtual_align(DWORD n)
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ST_FN DWORD pe_virtual_align(struct pe_info *pe, DWORD n)
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{
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return (n + (0x1000 - 1)) & ~(0x1000 - 1);
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return (n + (pe->section_align - 1)) & ~(pe->section_align - 1);
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}
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ST_FN void pe_align_section(Section *s, int a)
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@ -578,7 +581,7 @@ ST_FN int pe_write(struct pe_info *pe)
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return -1;
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}
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pe->sizeofheaders = pe_file_align(
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pe->sizeofheaders = pe_file_align(pe,
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sizeof (struct pe_header)
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+ pe->sec_count * sizeof (IMAGE_SECTION_HEADER)
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);
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@ -648,11 +651,11 @@ ST_FN int pe_write(struct pe_info *pe)
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psh->VirtualAddress = addr;
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psh->Misc.VirtualSize = size;
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pe_header.opthdr.SizeOfImage =
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umax(pe_virtual_align(size + addr), pe_header.opthdr.SizeOfImage);
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umax(pe_virtual_align(pe, size + addr), pe_header.opthdr.SizeOfImage);
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if (si->data_size) {
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psh->PointerToRawData = file_offset;
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file_offset = pe_file_align(file_offset + si->data_size);
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file_offset = pe_file_align(pe, file_offset + si->data_size);
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psh->SizeOfRawData = file_offset - psh->PointerToRawData;
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}
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}
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@ -1085,7 +1088,7 @@ ST_FN int pe_assign_addresses (struct pe_info *pe)
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strcpy(si->name, s->name);
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si->cls = c;
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si->ord = k;
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si->sh_addr = s->sh_addr = addr = pe_virtual_align(addr);
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si->sh_addr = s->sh_addr = addr = pe_virtual_align(pe, addr);
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si->sh_flags = s->sh_flags;
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if (c == sec_data && NULL == pe->thunk)
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@ -1649,6 +1652,33 @@ PUB_FN int pe_output_file(TCCState * s1, const char *filename)
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} else {
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pe.imagebase = 0x00400000;
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}
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/* if no subsystem specified, we use "console" subsystem by default */
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if (s1->pe_subsystem != 0)
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pe.subsystem = s1->pe_subsystem;
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else
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pe.subsystem = 3;
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/* set default file/section alignment */
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if (pe.subsystem == 1) {
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pe.section_align = 0x20;
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pe.file_align = 0x20;
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} else {
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pe.section_align = 0x1000;
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pe.file_align = 0x200;
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}
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if (s1->section_align != 0)
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pe.section_align = s1->section_align;
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if (s1->pe_file_align != 0)
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pe.file_align = s1->pe_file_align;
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if ((pe.subsystem >= 10) && (pe.subsystem <= 12))
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pe.imagebase = 0;
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if (s1->has_text_addr)
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pe.imagebase = s1->text_addr;
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pe_assign_addresses(&pe);
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relocate_syms(s1, 0);
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for (i = 1; i < s1->nb_sections; ++i) {
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