e7c3341679
* common.h (STT_IFUNC): Define.
elfcpp/
* elfcpp.h (enum STT): Add STT_IFUNC.
bfd/
* syms.c (struct bfd_symbol): Add new flag BSF_INDIRECT_FUNCTION.
Remove redundant flag BFD_FORT_COMM_DEFAULT_VALUE. Renumber flags
to remove gaps.
(bfd_print_symbol_vandf): Return 'i' for BSF_INDIRECT_FUNCTION.
(bfd_decode_symclass): Likewise.
* elf.c (swap_out_syms): Translate BSF_INDIRECT_FUNCTION into
STT_IFUNC.
(elf_find_function): Treat STT_IFUNC in the same way as STT_FUNC.
(_bfd_elf_is_function_type): Likewise.
* elf32-arm.c (arm_elf_find_function): Likewise.
(elf32_arm_adjust_dynamic_symbol): Likewise.
(elf32_arm_swap_symbol_in): Likewise.
(elf32_arm_additional_program_headers): Likewise.
* elf32-i386.c (is_indirect_symbol): New function.
(elf_i386_check_relocs): Also generate dynamic relocs for
relocations against STT_IFUNC symbols.
(allocate_dynrelocs): Likewise.
(elf_i386_relocate_section): Likewise.
* elf64-x86-64.c (is_indirect_symbol): New function.
(elf64_x86_64_check_relocs): Also generate dynamic relocs for
relocations against STT_IFUNC symbols.
(allocate_dynrelocs): Likewise.
(elf64_x86_64_relocate_section): Likewise.
* elfcode.h (elf_slurp_symbol_table): Translate STT_IFUNC into
BSF_INDIRECT_FUNCTION.
* elflink.c (_bfd_elf_adjust_dynamic_reloc_section): Add support
for STT_IFUNC symbols.
(get_ifunc_reloc_section_name): New function.
(_bfd_elf_make_ifunc_reloc_section): New function.
* elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs field.
* bfd-in2.h: Regenerate.
gas/
* config/obj-elf.c (obj_elf_type): Add support for STT_IFUNC type.
* doc/as.texinfo: Document new feature.
* NEWS: Mention new feature.
gas/testsuite/
* gas/elf/type.s: Add test of STT_IFUNC symbol type.
* gas/elf/type.e: Update expected disassembly.
* gas/elf/elf.exp: Update grep of symbol types.
ld/
* NEWS: Mention new feature.
* pe-dll.c (process_def_file): Replace use of redundant
BFD_FORT_COMM_DEFAULT_VALUE with 0.
* scripttempl/elf.sc: Add .rel.ifunc.dyn and .rela.ifunc.dyn
sections.
ld/testsuite/
* ld-mips-elf/reloc-1-n32.d: Updated expected output for reloc
descriptions.
* ld-mips-elf/reloc-1-n64.d: Likewise.
* ld-i386/ifunc.d: New test.
* ld-i386/ifunc.s: Source file for the new test.
* ld-i386/i386.exp: Run the new test.
128 lines
2 KiB
ArmAsm
128 lines
2 KiB
ArmAsm
.file "ifunc.c"
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#APP
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.type func, %indirect_function
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.type long_func_name, %indirect_function
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.section .rodata.str1.1,"aMS",@progbits,1
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.LC0:
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.string "arg is %d\n"
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#NO_APP
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.text
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.p2align 4,,15
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.globl bar
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.type bar, @function
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bar:
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pushl %ebp
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movl %esp, %ebp
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subl $8, %esp
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movl 8(%ebp), %eax
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movl $.LC0, (%esp)
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movl %eax, 4(%esp)
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call printf
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leave
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ret
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.size bar, .-bar
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.section .rodata.str1.1
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.LC1:
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.string "main: calling func"
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.section .rodata.str1.4,"aMS",@progbits,1
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.align 4
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.LC2:
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.string "main: func finished, calling long_func_name"
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.section .rodata.str1.1
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.LC3:
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.string "main: long_func_name finished"
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.text
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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 %ecx
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subl $4, %esp
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movl $.LC1, (%esp)
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call puts
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call func
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movl $.LC2, (%esp)
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call puts
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call long_func_name
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movl $.LC3, (%esp)
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call puts
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addl $4, %esp
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xorl %eax, %eax
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popl %ecx
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popl %ebp
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leal -4(%ecx), %esp
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ret
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.size main, .-main
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.p2align 4,,15
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.globl long_func_name
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.type long_func_name, @function
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long_func_name:
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pushl %ebp
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movl %esp, %ebp
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subl $8, %esp
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call rand
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movl $func0, %edx
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testl %eax, %eax
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jne .L7
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movl $func1, %edx
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.L7:
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movl %edx, %eax
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leave
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ret
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.size long_func_name, .-long_func_name
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.p2align 4,,15
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.globl func
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.type func, @function
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func:
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pushl %ebp
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movl %esp, %ebp
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subl $8, %esp
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call rand
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movl $func0, %edx
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testl %eax, %eax
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jne .L12
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movl $func1, %edx
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.L12:
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movl %edx, %eax
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leave
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ret
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.size func, .-func
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.section .rodata.str1.1
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.LC4:
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.string "func1\n"
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.text
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.p2align 4,,15
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.globl func1
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.type func1, @function
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func1:
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pushl %ebp
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movl %esp, %ebp
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subl $8, %esp
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movl $.LC4, (%esp)
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call puts
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leave
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ret
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.size func1, .-func1
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.section .rodata.str1.1
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.LC5:
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.string "func0\n"
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.text
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.p2align 4,,15
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.globl func0
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.type func0, @function
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func0:
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pushl %ebp
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movl %esp, %ebp
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subl $8, %esp
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movl $.LC5, (%esp)
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call puts
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leave
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ret
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.size func0, .-func0
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.ident "GCC: (GNU) 4.3.0 20080428 (Red Hat 4.3.0-8)"
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.section .note.GNU-stack,"",@progbits
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