| /branches/dynload/uspace/lib/rtld/arch/ia32/src/reloc.c |
|---|
| 0,0 → 1,126 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup rtld rtld |
| * @brief |
| * @{ |
| */ |
| /** |
| * @file |
| */ |
| #include <stdio.h> |
| #include <arch.h> |
| #include <elf_dyn.h> |
| #include <symbol.h> |
| #include <rtld.h> |
| /** |
| * Process (fixup) all relocations in a relocation table. |
| */ |
| void rel_table_process(module_t *m, elf_rel_t *rt, size_t rt_size) |
| { |
| int i; |
| size_t rt_entries; |
| size_t r_offset; |
| elf_word r_info; |
| unsigned rel_type; |
| elf_word sym_idx; |
| uintptr_t sym_addr; |
| elf_symbol_t *sym_table; |
| elf_symbol_t *sym; |
| uint32_t *r_ptr; |
| char *str_tab; |
| elf_symbol_t *sym_def; |
| module_t *dest; |
| printf("parse relocation table\n"); |
| sym_table = m->dyn.sym_tab; |
| rt_entries = rt_size / sizeof(elf_rel_t); |
| str_tab = m->dyn.str_tab; |
| printf("address: 0x%x, entries: %d\n", (uintptr_t)rt, rt_entries); |
| for (i = 0; i < rt_entries; ++i) { |
| printf("symbol %d: ", i); |
| r_offset = rt[i].r_offset; |
| r_info = rt[i].r_info; |
| sym_idx = ELF32_R_SYM(r_info); |
| sym = &sym_table[sym_idx]; |
| printf("name '%s', value 0x%x, size 0x%x\n", |
| str_tab + sym->st_name, |
| sym->st_value, |
| sym->st_size); |
| rel_type = ELF32_R_TYPE(r_info); |
| r_ptr = (uint32_t *)(r_offset + m->bias); |
| if (sym->st_name != 0) { |
| printf("rel_type: %x, rel_offset: 0x%x\n", rel_type, r_offset); |
| sym_def = symbol_def_find(str_tab + sym->st_name, &dest); |
| printf("dest name: '%s'\n", dest->dyn.soname); |
| printf("dest bias: 0x%x\n", dest->bias); |
| if (sym_def) { |
| sym_addr = sym_def->st_value + dest->bias; |
| printf("symbol definition found, addr=0x%x\n", sym_addr); |
| } else { |
| printf("symbol definition not found\n"); |
| continue; |
| } |
| } |
| switch (rel_type) { |
| case R_386_GLOB_DAT: |
| case R_386_JUMP_SLOT: |
| printf("fixup R_386_GLOB_DAT/JUMP_SLOT (b+v)\n"); |
| *r_ptr = sym_addr; |
| break; |
| case R_386_32: |
| printf("fixup R_386_32 (b+v+a)\n"); |
| *r_ptr += sym_addr; |
| break; |
| case R_386_RELATIVE: |
| printf("fixup R_386_RELATIVE (b+a)\n"); |
| *r_ptr += m->bias; |
| break; |
| } |
| } |
| } |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/rtld/arch/ia32/src/bootstrap.c |
|---|
| 0,0 → 1,243 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup rtld rtld |
| * @brief |
| * @{ |
| */ |
| /** |
| * @file |
| */ |
| #include <elf_dyn.h> |
| #include <rtld.h> |
| void __main(void); |
| void __io_init(void); |
| void __exit(void); |
| static void kputint(unsigned i) |
| { |
| unsigned dummy; |
| asm volatile ( |
| "movl $30, %%eax;" |
| "int $0x30" |
| : "=d" (dummy) /* output - %edx clobbered */ |
| : "d" (i) /* input */ |
| : "%eax","%ecx" /* all scratch registers clobbered */ |
| ); |
| } |
| void __bootstrap(void) |
| { |
| unsigned bias; |
| unsigned *got; |
| elf_dyn_t *dynamic; |
| void *dptr; |
| unsigned dval; |
| int i; |
| size_t rel_entries; |
| size_t r_offset; |
| elf_word r_info; |
| unsigned rel_type; |
| elf_word sym_idx; |
| uintptr_t sym_addr; |
| elf_symbol_t *sym_table; |
| elf_rel_t *rel_table; |
| elf_rel_t *jmp_rel_table; |
| size_t jmp_rel_entries; |
| asm volatile ( |
| /* Calculate the bias into %0 */ |
| /* Generates "fake" R_386_RELATIVE run-time relocation */ |
| " call .L0;" |
| ".L0: pop %0;" |
| " subl $.L0, %0;" |
| /* Calculate run-time address of _DYNAMIC into %1 */ |
| /* Generates "fake" R_386_RELATIVE run-time relocation */ |
| " movl $_DYNAMIC, %1;" /* Again, at link time 0-based VMA gets in */ |
| " addl %0, %1;" /* Add bias to compute run-time address */ |
| : "=r" (bias), "=r" (dynamic) |
| ); |
| kputint(bias); |
| kputint((unsigned)dynamic); |
| /* parse DYNAMIC */ |
| got = 0; |
| sym_table = 0; |
| rel_table = 0; |
| rel_entries = 0; |
| jmp_rel_table = 0; |
| jmp_rel_entries = 0; |
| i = 0; |
| while (dynamic[i].d_tag != 0) { |
| dptr = (void *)(dynamic[i].d_un.d_val + bias); |
| dval = dynamic[i].d_un.d_val; |
| switch (dynamic[i].d_tag) { |
| case DT_PLTRELSZ: jmp_rel_entries = dval/8; break; |
| case DT_JMPREL: jmp_rel_table = dptr; break; |
| case DT_PLTGOT: |
| /* GOT address */ |
| got = dptr; break; |
| case DT_SYMTAB: sym_table = dptr; break; |
| case DT_REL: rel_table = dptr; break; |
| case DT_RELSZ: rel_entries = dval / 8; break; |
| default: break; |
| } |
| ++i; |
| } |
| kputint(1); |
| kputint((unsigned)sym_table); |
| kputint((unsigned)rel_table); |
| kputint((unsigned)rel_entries); |
| /* Now relocate all our dynsyms */ |
| kputint(-1); |
| for (i=0; i<rel_entries; i++) { |
| kputint(i); |
| r_offset = rel_table[i].r_offset; |
| r_info = rel_table[i].r_info; |
| rel_type = ELF32_R_TYPE(r_info); |
| kputint(rel_type); |
| kputint(r_offset); |
| switch (rel_type) { |
| case R_386_GLOB_DAT: |
| case R_386_JUMP_SLOT: |
| kputint(16); |
| sym_idx = ELF32_R_SYM(r_info); |
| sym_addr = sym_table[sym_idx].st_value + bias; |
| kputint(sym_idx); |
| kputint(sym_addr); |
| *(unsigned *)(r_offset+bias) = sym_addr; |
| break; |
| case R_386_32: |
| kputint(16); |
| sym_idx = ELF32_R_SYM(r_info); |
| sym_addr = sym_table[sym_idx].st_value + bias; |
| kputint(sym_idx); |
| kputint(sym_addr); |
| *(unsigned *)(r_offset+bias) += sym_addr; |
| break; |
| case R_386_RELATIVE: |
| kputint(16); |
| *(unsigned *)(r_offset+bias) += bias; |
| break; |
| } |
| } |
| kputint(-1); |
| for (i=0; i<jmp_rel_entries; i++) { |
| kputint(i); |
| r_offset = jmp_rel_table[i].r_offset; |
| r_info = jmp_rel_table[i].r_info; |
| rel_type = ELF32_R_TYPE(r_info); |
| kputint(rel_type); |
| kputint(r_offset); |
| switch (rel_type) { |
| case R_386_GLOB_DAT: |
| case R_386_JUMP_SLOT: |
| kputint(16); |
| sym_idx = ELF32_R_SYM(r_info); |
| sym_addr = sym_table[sym_idx].st_value + bias; |
| kputint(sym_idx); |
| kputint(sym_addr); |
| *(unsigned *)(r_offset+bias) = sym_addr; |
| break; |
| case R_386_32: |
| kputint(16); |
| sym_idx = ELF32_R_SYM(r_info); |
| sym_addr = sym_table[sym_idx].st_value + bias; |
| kputint(sym_idx); |
| kputint(sym_addr); |
| *(unsigned *)(r_offset+bias) += sym_addr; |
| break; |
| case R_386_RELATIVE: |
| kputint(16); |
| *(unsigned *)(r_offset+bias) += bias; |
| break; |
| } |
| } |
| kputint(-1); |
| /* This will come in handy */ |
| runtime_env.rtld_dynamic = dynamic; |
| runtime_env.rtld.bias = bias; |
| /* Init libc and run rtld main */ |
| __main(); |
| kputint(33); |
| __io_init(); |
| kputint(34); |
| _rtld_main(); |
| kputint(35); |
| __exit(); |
| kputint(36); |
| asm ( |
| "movl $250, %%eax;" |
| "int $0x30" |
| : /* output */ |
| : /* input */ |
| : "%eax","%ecx","%edx" /* all scratch registers clobbered */ |
| ); |
| } |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/rtld/arch/ia32/src/runtime.c |
|---|
| 0,0 → 1,77 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup rtld rtld |
| * @brief |
| * @{ |
| */ |
| /** |
| * @file |
| */ |
| #include <sys/types.h> |
| #include <align.h> |
| #include <tls.h> |
| static void kputint(unsigned i) |
| { |
| unsigned dummy; |
| asm volatile ( |
| "movl $30, %%eax;" |
| "int $0x30" |
| : "=d" (dummy) /* output - %edx clobbered */ |
| : "d" (i) /* input */ |
| : "%eax","%ecx" /* all scratch registers clobbered */ |
| ); |
| } |
| typedef struct { |
| unsigned long int ti_module; |
| unsigned long int ti_offset; |
| } tls_index; |
| void __attribute__ ((__regparm__ (1))) |
| *___tls_get_addr(tls_index *ti); |
| void __attribute__ ((__regparm__ (1))) |
| *___tls_get_addr(tls_index *ti) |
| { |
| size_t tls_size; |
| uint8_t *tls; |
| /* Calculate size of TLS block */ |
| tls_size = ALIGN_UP(&_tbss_end - &_tdata_start, &_tls_alignment); |
| /* The TLS block is just before TCB */ |
| tls = (uint8_t *)__tcb_get() - tls_size; |
| return tls + ti->ti_offset; |
| } |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/rtld/arch/ia32/src/entry.s |
|---|
| 0,0 → 1,42 |
| # |
| # Copyright (c) 2005 Martin Decky |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| .section .text |
| .globl __bootstrap |
| .hidden __bootstrap |
| .type __entry, @function |
| __entry: |
| mov %ss, %ax |
| mov %ax, %ds |
| mov %ax, %es |
| mov %ax, %fs |
| call __bootstrap |
| /branches/dynload/uspace/lib/rtld/arch/ia32/Makefile.inc |
|---|
| 0,0 → 1,36 |
| # |
| # Copyright (c) 2008 Jiri Svoboda |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| CFLAGS += -D__32_BITS__ |
| ARCH_SOURCES := \ |
| arch/$(ARCH)/src/entry.s \ |
| arch/$(ARCH)/src/bootstrap.c \ |
| arch/$(ARCH)/src/runtime.c \ |
| arch/$(ARCH)/src/reloc.c |
| /branches/dynload/uspace/lib/rtld/arch/ia32/include/elf_dyn.h |
|---|
| 0,0 → 1,50 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef ia32_ELF_DYN_H_ |
| #define ia32_ELF_DYN_H_ |
| /* |
| * ia32 dynamic relocation types |
| */ |
| #define R_386_32 1 |
| #define R_386_GLOB_DAT 6 |
| #define R_386_JUMP_SLOT 7 |
| #define R_386_RELATIVE 8 |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/rtld/arch/ia32/_link.ld.in |
|---|
| 0,0 → 1,81 |
| ENTRY(__entry) |
| PHDRS { |
| text PT_LOAD FLAGS(5); |
| data PT_LOAD FLAGS(6); |
| } |
| SECTIONS { |
| . = 0x1000; |
| .init ALIGN(0x1000) : SUBALIGN(0x1000) { |
| *(.init); |
| } :text |
| .text : { |
| *(.text); |
| *(.text.*); |
| *(.rodata*); |
| } :text |
| .rel.plt ALIGN(0x1000) : { |
| *(.rel.plt); |
| } |
| /* |
| *.rel.dyn MUST FOLLOW IMMEDIATELY after .rel.plt |
| * without alignment gap or DT_REL will be broken |
| */ |
| .rel.dyn : { |
| *(.rel.*); |
| } :text |
| .plt ALIGN(0x1000) : SUBALIGN(0x1000) { |
| *(.plt); |
| } :text |
| .dynamic ALIGN(0x1000) : { |
| *(.dynamic); |
| } :text |
| .dynsym ALIGN(0x1000) : { |
| *(.dynsym); |
| } :text |
| .dynstr ALIGN(0x1000) : { |
| *(.dynstr); |
| } :text |
| .data ALIGN(0x1000) : SUBALIGN(0x1000) { |
| *(.data); |
| } :data |
| .data.rel ALIGN(0x1000) : { |
| *(.data.rel); |
| } :data |
| .got ALIGN(0x1000) : SUBALIGN(0x1000) { |
| *(.got); |
| } :data |
| .got.plt ALIGN(0x1000) : SUBALIGN(0x1000) { |
| *(.got.plt); |
| } :data |
| .bss : { |
| *(COMMON); |
| *(.bss); |
| } :data |
| .tdata : { |
| _tdata_start = .; |
| *(.tdata); |
| _tdata_end = .; |
| } :data |
| .tbss : { |
| _tbss_start = .; |
| *(.tbss); |
| _tbss_end = .; |
| } :data |
| _tls_alignment = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)); |
| . = ALIGN(0x1000); |
| _heap = .; |
| } |