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a5b4ee9451
We shpouldn't generate copy relocation to resolve reference to protected data symbol defined in shared object with the NO_COPY_ON_PROTECTED property. This patch adds a bit to elf_obj_tdata as well as elf_i386_link_hash_entry and elf_x86_64_link_hash_entry to track the bfd with the NO_COPY_ON_PROTECTED property as well as protected symbol defined in shared object. extern_protected_data is set to FALSE if any input relocatable file contains the NO_COPY_ON_PROTECTED property. bfd/ PR ld/21997 * elf-bfd.h (elf_obj_tdata): Use ENUM_BITFIELD on object_id, dyn_lib_class and has_gnu_symbols. Change bad_symtab to bitfield. Add a has_no_copy_on_protected bitfield. (elf_has_no_copy_on_protected): New. * elf-properties.c (_bfd_elf_parse_gnu_properties): Set elf_has_no_copy_on_protected for GNU_PROPERTY_NO_COPY_ON_PROTECTED. (elf_merge_gnu_property_list): Likewise. (_bfd_elf_link_setup_gnu_properties): Set extern_protected_data to FALSE for elf_has_no_copy_on_protected. * elf32-i386.c (SYMBOL_NO_COPYRELOC): New. (elf_i386_link_hash_entry): Add def_protected. (elf_i386_adjust_dynamic_symbol): Also check SYMBOL_NO_COPYRELOC when checking info->nocopyreloc. (elf_i386_link_setup_gnu_properties): Don't set extern_protected_data here. (elf_i386_merge_symbol_attribute): New function. (elf_backend_merge_symbol_attribute): New. * elf64-x86-64.c (SYMBOL_NO_COPYRELOC): New. (elf_x86_64_link_hash_entry): Add def_protected. (elf_x86_64_need_pic): Report protected symbol for def_protected. (elf_x86_64_adjust_dynamic_symbol): Also check SYMBOL_NO_COPYRELOC when checking info->nocopyreloc. (elf_x86_64_relocate_section): Also check for R_X86_64_PC32 relocation run-time overflow and unresolvable R_X86_64_32S relocation against protected data symbol defined in shared object with GNU_PROPERTY_NO_COPY_ON_PROTECTED. (elf_x86_64_link_setup_gnu_properties): Don't set extern_protected_data here. (elf_x86_64_merge_symbol_attribute): New function. (elf_backend_merge_symbol_attribute): New. ld/ PR ld/21997 * testsuite/ld-i386/i386.exp: Run PR ld/21997 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr21997-1a.S: New file. * testsuite/ld-i386/pr21997-1b.c: Likewise. * testsuite/ld-i386/pr21997-1c.S: Likewise. * testsuite/ld-x86-64/pr21997-1a.S: Likewise. * testsuite/ld-x86-64/pr21997-1a.err: Likewise. * testsuite/ld-x86-64/pr21997-1b.c: Likewise. * testsuite/ld-x86-64/pr21997-1b.err: Likewise. * testsuite/ld-x86-64/pr21997-1c.c: Likewise.
52 lines
1001 B
ArmAsm
52 lines
1001 B
ArmAsm
.section .rodata.str1.1,"aMS",@progbits,1
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.LC0:
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.string "PASS"
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.section .text.startup,"ax",@progbits
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.p2align 4,,15
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.globl main
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.type main, @function
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main:
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leal 4(%esp), %ecx
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andl $-16, %esp
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pushl -4(%ecx)
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pushl %ebp
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movl %esp, %ebp
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pushl %esi
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pushl %ebx
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pushl %ecx
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call __x86.get_pc_thunk.bx
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addl $_GLOBAL_OFFSET_TABLE_, %ebx
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subl $12, %esp
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call get_protected@PLT
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movl protected@GOT(%ebx), %esi
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cmpl (%esi), %eax
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je .L7
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.L3:
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leal -12(%ebp), %esp
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xorl %eax, %eax
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popl %ecx
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popl %ebx
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popl %esi
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popl %ebp
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leal -4(%ecx), %esp
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ret
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.L7:
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call get_protected_p@PLT
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cmpl %esi, %eax
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jne .L3
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leal .LC0@GOTOFF(%ebx), %eax
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subl $12, %esp
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pushl %eax
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call puts@PLT
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addl $16, %esp
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jmp .L3
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.size main, .-main
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.section .text.__x86.get_pc_thunk.bx,"axG",@progbits,__x86.get_pc_thunk.bx,comdat
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.globl __x86.get_pc_thunk.bx
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.hidden __x86.get_pc_thunk.bx
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.type __x86.get_pc_thunk.bx, @function
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__x86.get_pc_thunk.bx:
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movl (%esp), %ebx
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ret
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.section .note.GNU-stack,"",@progbits
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