Browse Source
2018-04-25 Christophe Lyon <christophe.lyon@st.com> Mickaël Guêné <mickael.guene@st.com> ld/ * testsuite/ld-arm/arm-elf.exp: Execute the new FDPIC tests. * testsuite/ld-arm/fdpic-main.d: New test. * testsuite/ld-arm/fdpic-main.ld: New. * testsuite/ld-arm/fdpic-main.r: New. * testsuite/ld-arm/fdpic-main.s: New. * testsuite/ld-arm/fdpic-main.sym: New. * testsuite/ld-arm/fdpic-shared.d: New test. * testsuite/ld-arm/fdpic-shared.ld: New. * testsuite/ld-arm/fdpic-shared.r: New. * testsuite/ld-arm/fdpic-shared.s: New. * testsuite/ld-arm/fdpic-shared.sym: New.binutils-2_31-branch
committed by
Christophe Lyon
12 changed files with 811 additions and 0 deletions
@ -0,0 +1,72 @@ |
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tmpdir/fdpic-main: file format elf32-(little|big)arm |
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architecture: arm.*, flags 0x00000112: |
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EXEC_P, HAS_SYMS, D_PAGED |
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start address 0x.* |
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|
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Disassembly of section .plt: |
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|
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.* <.plt>: |
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.*: e59fc008 ldr ip, \[pc, #8\] ; .* <.plt\+0x10> |
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.*: e08cc009 add ip, ip, r9 |
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.*: e59c9004 ldr r9, \[ip, #4\] |
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.*: e59cf000 ldr pc, \[ip\] |
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.*: 0000000c .word 0x0000000c |
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.*: 00000000 .word 0x00000000 |
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.*: e51fc00c ldr ip, \[pc, #-12\] ; .* <.plt\+0x14> |
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.*: e92d1000 stmfd sp!, {ip} |
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.*: e599c004 ldr ip, \[r9, #4\] |
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.*: e599f000 ldr pc, \[r9\] |
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.*: e59fc008 ldr ip, \[pc, #8\] ; .* <.plt\+0x38> |
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.*: e08cc009 add ip, ip, r9 |
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.*: e59c9004 ldr r9, \[ip, #4\] |
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.*: e59cf000 ldr pc, \[ip] |
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.*: 00000014 .word 0x00000014 |
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.*: 00000008 .word 0x00000008 |
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.*: e51fc00c ldr ip, \[pc, #-12\] ; .* <.plt\+0x3c> |
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.*: e92d1000 stmfd sp!, {ip} |
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.*: e599c004 ldr ip, \[r9, #4\] |
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.*: e599f000 ldr pc, \[r9\] |
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|
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Disassembly of section .text: |
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|
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.* <_start>: |
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.*: eaffffff b .* <main> |
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.* <main>: |
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.*: e59f206c ldr r2, \[pc, #108\] ; .* <main\+0x74> |
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.*: e59f306c ldr r3, \[pc, #108\] ; .* <main\+0x78> |
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.*: e92d4070 push {r4, r5, r6, lr} |
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.*: e7995002 ldr r5, \[r9, r2\] |
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.*: e1a04009 mov r4, r9 |
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.*: e7993003 ldr r3, \[r9, r3\] |
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.*: e5853000 str r3, \[r5\] |
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.*: ebffffe2 bl .* <.plt> |
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.*: e1a06000 mov r6, r0 |
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.*: e1a09004 mov r9, r4 |
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.*: e5950000 ldr r0, \[r5\] |
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.*: e1a09004 mov r9, r4 |
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.*: ebffffe7 bl .* <.plt\+0x28> |
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.*: e59f3040 ldr r3, \[pc, #64\] ; .* <main\+0x7c> |
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.*: e1a09004 mov r9, r4 |
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.*: e0833009 add r3, r3, r9 |
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.*: e1a00003 mov r0, r3 |
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.*: e5853000 str r3, \[r5\] |
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.*: e1a09004 mov r9, r4 |
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.*: ebffffe0 bl .* <.plt\+0x28> |
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.*: e59f3028 ldr r3, \[pc, #40\] ; .* <main\+0x80> |
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.*: e1a09004 mov r9, r4 |
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.*: e7993003 ldr r3, \[r9, r3\] |
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.*: e5930000 ldr r0, \[r3\] |
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.*: e1a09004 mov r9, r4 |
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.*: ebffffda bl .* <.plt\+0x28> |
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.*: e1a00006 mov r0, r6 |
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.*: e1a09004 mov r9, r4 |
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.*: e8bd8070 pop {r4, r5, r6, pc} |
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.*: 0000002c .word 0x0000002c |
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.*: 00000024 .word 0x00000024 |
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.*: 0000001c .word 0x0000001c |
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.*: 00000028 .word 0x00000028 |
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.* <my_local_func>: |
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.*: e12fff1e bx lr |
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@ -0,0 +1,244 @@ |
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/* Script for -z combreloc: combine and sort reloc sections */ |
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OUTPUT_FORMAT("elf32-littlearm-fdpic", "elf32-bigarm-fdpic", |
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"elf32-littlearm-fdpic") |
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OUTPUT_ARCH(arm) |
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ENTRY(_start) |
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SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib"); |
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SECTIONS |
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{ |
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/* Read-only sections, merged into text segment: */ |
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PROVIDE_HIDDEN (__rel_iplt_start = .); |
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PROVIDE_HIDDEN (__rel_iplt_end = .); |
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PROVIDE_HIDDEN (__rela_iplt_start = .); |
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PROVIDE_HIDDEN (__rela_iplt_end = .); |
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PROVIDE_HIDDEN (__rela_iplt_start = .); |
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*(.rela.iplt) |
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PROVIDE_HIDDEN (__rela_iplt_end = .); |
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} |
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*(.rel.plt) |
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*(.rela.plt) |
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KEEP (*(.init)) |
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} =0 |
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*(.text.unlikely .text.*_unlikely) |
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} =0 |
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PROVIDE_HIDDEN (__exidx_start = .); |
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PROVIDE_HIDDEN (__exidx_end = .); |
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.rofixup : { |
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__ROFIXUP_LIST__ = .; |
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*(.rofixup) |
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__ROFIXUP_END__ = .; |
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} |
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.eh_frame_hdr : { *(.eh_frame_hdr) } |
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.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } |
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/* These sections are generated by the Sun/Oracle C++ compiler. */ |
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/* Adjust the address for the data segment. We want to adjust up to |
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the same address within the page on the next page up. */ |
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. = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); |
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/* Exception handling */ |
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/* Thread Local Storage sections */ |
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.tdata : |
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PROVIDE_HIDDEN (__tdata_start = .); |
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*(.tdata .tdata.* .gnu.linkonce.td.*) |
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} |
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.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } |
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.preinit_array : |
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{ |
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PROVIDE_HIDDEN (__preinit_array_start = .); |
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KEEP (*(.preinit_array)) |
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PROVIDE_HIDDEN (__preinit_array_end = .); |
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} |
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.init_array : |
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{ |
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PROVIDE_HIDDEN (__init_array_start = .); |
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KEEP (*(SORT(.init_array.*))) |
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KEEP (*(.init_array)) |
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PROVIDE_HIDDEN (__init_array_end = .); |
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} |
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PROVIDE_HIDDEN (__fini_array_start = .); |
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PROVIDE_HIDDEN (__fini_array_end = .); |
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} |
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/* gcc uses crtbegin.o to find the start of |
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the constructors, so we make sure it is |
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first. Because this is a wildcard, it |
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doesn't matter if the user does not |
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actually link against crtbegin.o; the |
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linker won't look for a file to match a |
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wildcard. The wildcard also means that it |
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doesn't matter which directory crtbegin.o |
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is in. */ |
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KEEP (*crtbegin.o(.ctors)) |
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KEEP (*crtbegin?.o(.ctors)) |
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/* We don't want to include the .ctor section from |
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the crtend.o file until after the sorted ctors. |
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The .ctor section from the crtend file contains the |
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end of ctors marker and it must be last */ |
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) |
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KEEP (*(SORT(.ctors.*))) |
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KEEP (*(.ctors)) |
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} |
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.dtors : |
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{ |
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KEEP (*crtbegin.o(.dtors)) |
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KEEP (*crtbegin?.o(.dtors)) |
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) |
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KEEP (*(SORT(.dtors.*))) |
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KEEP (*(.dtors)) |
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. = DATA_SEGMENT_RELRO_END (0, .); |
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PROVIDE (__data_start = .); |
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SORT(CONSTRUCTORS) |
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} |
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_end. Align after .bss to ensure correct alignment even if the |
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.bss section disappears because there are no input sections. |
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FIXME: Why do we need it? When there is no .bss section, we don't |
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pad the .data section. */ |
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. = ALIGN(. != 0 ? 32 / 8 : 1); |
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} |
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. = ALIGN(32 / 8); |
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. = ALIGN(32 / 8); |
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__end__ = . ; |
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/* DWARF debug sections. |
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Symbols in the DWARF debugging sections are relative to the beginning |
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of the section so we begin them at 0. */ |
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/* GNU DWARF 1 extensions */ |
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/* DWARF 2 */ |
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/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) } |
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} |
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@ -0,0 +1,11 @@ |
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tmpdir/fdpic-main.*: file format elf32-(little|big)arm |
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DYNAMIC RELOCATION RECORDS |
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OFFSET TYPE VALUE |
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.* R_ARM_FUNCDESC my_shared_func1 |
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.* R_ARM_FUNCDESC my_shared_func1 |
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.* R_ARM_FUNCDESC_VALUE my_shared_func1 |
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.* R_ARM_FUNCDESC_VALUE my_shared_func2 |
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@ -0,0 +1,86 @@ |
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.arch armv7-r |
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.eabi_attribute 20, 1 |
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.eabi_attribute 21, 1 |
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.eabi_attribute 23, 3 |
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.eabi_attribute 24, 1 |
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.eabi_attribute 25, 1 |
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.eabi_attribute 26, 2 |
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.eabi_attribute 30, 2 |
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.eabi_attribute 34, 1 |
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.eabi_attribute 18, 4 |
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.file "hello.c" |
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.text |
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.align 2 |
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.syntax unified |
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.arm |
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.fpu softvfp |
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.type my_local_func, %function |
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my_local_func: |
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@ args = 0, pretend = 0, frame = 0 |
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@ frame_needed = 0, uses_anonymous_args = 0 |
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@ link register save eliminated. |
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bx lr |
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.size my_local_func, .-my_local_func |
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.section .text.startup,"ax",%progbits |
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.align 2 |
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.global _start |
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.syntax unified |
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.arm |
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.fpu softvfp |
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.type _start, %function |
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_start: |
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b main |
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|
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.global main |
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.syntax unified |
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.arm |
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.fpu softvfp |
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.type main, %function |
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main: |
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@ args = 0, pretend = 0, frame = 0 |
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@ frame_needed = 0, uses_anonymous_args = 0 |
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ldr r2, .L4 |
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ldr r3, .L4+4 |
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push {r4, r5, r6, lr} |
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ldr r5, [r9, r2] |
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mov r4, r9 |
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ldr r3, [r9, r3] |
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str r3, [r5] |
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bl my_shared_func1(PLT) |
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mov r6, r0 |
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mov r9, r4 |
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ldr r0, [r5] |
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mov r9, r4 |
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bl my_shared_func2(PLT) |
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ldr r3, .L4+8 |
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mov r9, r4 |
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add r3, r3, r9 |
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mov r0, r3 |
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str r3, [r5] |
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mov r9, r4 |
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bl my_shared_func2(PLT) |
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ldr r3, .L4+12 |
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mov r9, r4 |
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ldr r3, [r9, r3] |
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ldr r0, [r3] |
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mov r9, r4 |
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bl my_shared_func2(PLT) |
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mov r0, r6 |
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mov r9, r4 |
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pop {r4, r5, r6, pc} |
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.L5: |
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.align 2 |
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.L4: |
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.word funcptr(GOT) |
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.word my_shared_func1(GOTFUNCDESC) |
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.word my_local_func(GOTOFFFUNCDESC) |
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.word funcptr2(GOT) |
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.size main, .-main |
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.global funcptr2 |
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.comm funcptr,4,4 |
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.section .data.rel,"aw",%progbits |
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.align 2 |
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.type funcptr2, %object |
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.size funcptr2, 4 |
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funcptr2: |
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.word my_shared_func1(FUNCDESC) |
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@ -0,0 +1,14 @@ |
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|
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Symbol table for image: |
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+Num +Buc: +Value +Size +Type +Bind +Vis +Ndx +Name |
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+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +12 _edata |
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+.. +..: ........ +0 +FUNC +GLOBAL +DEFAULT +UND my_shared_func2 |
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+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +12 __bss_start__ |
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+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +13 _end |
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+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +13 __bss_end__ |
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+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +13 __end__ |
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+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT + 9 __ROFIXUP_LIST__ |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +12 __bss_start |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT + 9 __ROFIXUP_END__ |
|||
+.. +..: ........ +0 +FUNC +GLOBAL +DEFAULT +UND my_shared_func1 |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +13 _bss_end__ |
|||
@ -0,0 +1,35 @@ |
|||
|
|||
tmpdir/fdpic-shared.so: file format elf32-(little|big)arm |
|||
architecture: arm.*, flags 0x00000150: |
|||
HAS_SYMS, DYNAMIC, D_PAGED |
|||
start address 0x.* |
|||
|
|||
Disassembly of section .plt: |
|||
|
|||
.* <.plt>: |
|||
.*: e59fc008 ldr ip, \[pc, #8\] ; .* <.plt\+0x10> |
|||
.*: e08cc009 add ip, ip, r9 |
|||
.*: e59c9004 ldr r9, \[ip, #4\] |
|||
.*: e59cf000 ldr pc, \[ip\] |
|||
.*: 0000000c .word 0x0000000c |
|||
.*: 00000000 .word 0x00000000 |
|||
.*: e51fc00c ldr ip, \[pc, #-12\] ; .* <.plt\+0x14> |
|||
.*: e92d1000 stmfd sp!, {ip} |
|||
.*: e599c004 ldr ip, \[r9, #4\] |
|||
.*: e599f000 ldr pc, \[r9\] |
|||
|
|||
Disassembly of section .text: |
|||
|
|||
.* <my_shared_func1>: |
|||
.*: e12fff1e bx lr |
|||
|
|||
.* <my_shared_func3>: |
|||
.*: e3a00000 mov r0, #0 |
|||
.*: e12fff1e bx lr |
|||
|
|||
.* <my_shared_func2>: |
|||
.*: e92d4010 push {r4, lr} |
|||
.*: e1a04009 mov r4, r9 |
|||
.*: ebffffef bl .* <.plt> |
|||
.*: e1a09004 mov r9, r4 |
|||
.*: e8bd8010 pop {r4, pc} |
|||
@ -0,0 +1,228 @@ |
|||
/* Script for --shared -z combreloc: shared library, combine & sort relocs */ |
|||
OUTPUT_FORMAT("elf32-littlearm-fdpic", "elf32-bigarm-fdpic", |
|||
"elf32-littlearm-fdpic") |
|||
OUTPUT_ARCH(arm) |
|||
ENTRY(_start) |
|||
SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib"); |
|||
SECTIONS |
|||
{ |
|||
/* Read-only sections, merged into text segment: */ |
|||
. = SEGMENT_START("text-segment", 0) + SIZEOF_HEADERS; |
|||
.note.gnu.build-id : { *(.note.gnu.build-id) } |
|||
.hash : { *(.hash) } |
|||
.gnu.hash : { *(.gnu.hash) } |
|||
.dynsym : { *(.dynsym) } |
|||
.dynstr : { *(.dynstr) } |
|||
.gnu.version : { *(.gnu.version) } |
|||
.gnu.version_d : { *(.gnu.version_d) } |
|||
.gnu.version_r : { *(.gnu.version_r) } |
|||
.rel.dyn : |
|||
{ |
|||
*(.rel.init) |
|||
*(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) |
|||
*(.rel.fini) |
|||
*(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) |
|||
*(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) |
|||
*(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) |
|||
*(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) |
|||
*(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) |
|||
*(.rel.ctors) |
|||
*(.rel.dtors) |
|||
*(.rel.got) |
|||
*(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) |
|||
*(.rel.iplt) |
|||
} |
|||
.rela.dyn : |
|||
{ |
|||
*(.rela.init) |
|||
*(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) |
|||
*(.rela.fini) |
|||
*(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) |
|||
*(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) |
|||
*(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) |
|||
*(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) |
|||
*(.rela.ctors) |
|||
*(.rela.dtors) |
|||
*(.rela.got) |
|||
*(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) |
|||
*(.rela.iplt) |
|||
} |
|||
.rel.plt : |
|||
{ |
|||
*(.rel.plt) |
|||
} |
|||
.rela.plt : |
|||
{ |
|||
*(.rela.plt) |
|||
} |
|||
.init : |
|||
{ |
|||
KEEP (*(.init)) |
|||
} =0 |
|||
.plt : { *(.plt) } |
|||
.iplt : { *(.iplt) } |
|||
.text : |
|||
{ |
|||
*(.text.unlikely .text.*_unlikely) |
|||
*(.text.exit .text.exit.*) |
|||
*(.text.startup .text.startup.*) |
|||
*(.text.hot .text.hot.*) |
|||
*(.text .stub .text.* .gnu.linkonce.t.*) |
|||
/* .gnu.warning sections are handled specially by elf32.em. */ |
|||
*(.gnu.warning) |
|||
*(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx) |
|||
} =0 |
|||
.fini : |
|||
{ |
|||
KEEP (*(.fini)) |
|||
} =0 |
|||
PROVIDE (__etext = .); |
|||
PROVIDE (_etext = .); |
|||
PROVIDE (etext = .); |
|||
.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } |
|||
.rodata1 : { *(.rodata1) } |
|||
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } |
|||
PROVIDE_HIDDEN (__exidx_start = .); |
|||
.ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } |
|||
PROVIDE_HIDDEN (__exidx_end = .); |
|||
.rofixup : { |
|||
__ROFIXUP_LIST__ = .; |
|||
*(.rofixup) |
|||
__ROFIXUP_END__ = .; |
|||
} |
|||
.eh_frame_hdr : { *(.eh_frame_hdr) } |
|||
.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } |
|||
.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table |
|||
.gcc_except_table.*) } |
|||
/* These sections are generated by the Sun/Oracle C++ compiler. */ |
|||
.exception_ranges : ONLY_IF_RO { *(.exception_ranges |
|||
.exception_ranges*) } |
|||
/* Adjust the address for the data segment. We want to adjust up to |
|||
the same address within the page on the next page up. */ |
|||
. = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); |
|||
/* Exception handling */ |
|||
.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } |
|||
.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } |
|||
.exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } |
|||
/* Thread Local Storage sections */ |
|||
.tdata : |
|||
{ |
|||
*(.tdata .tdata.* .gnu.linkonce.td.*) |
|||
} |
|||
.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } |
|||
.preinit_array : |
|||
{ |
|||
KEEP (*(.preinit_array)) |
|||
} |
|||
.init_array : |
|||
{ |
|||
KEEP (*(SORT(.init_array.*))) |
|||
KEEP (*(.init_array)) |
|||
} |
|||
.fini_array : |
|||
{ |
|||
KEEP (*(SORT(.fini_array.*))) |
|||
KEEP (*(.fini_array)) |
|||
} |
|||
.ctors : |
|||
{ |
|||
/* gcc uses crtbegin.o to find the start of |
|||
the constructors, so we make sure it is |
|||
first. Because this is a wildcard, it |
|||
doesn't matter if the user does not |
|||
actually link against crtbegin.o; the |
|||
linker won't look for a file to match a |
|||
wildcard. The wildcard also means that it |
|||
doesn't matter which directory crtbegin.o |
|||
is in. */ |
|||
KEEP (*crtbegin.o(.ctors)) |
|||
KEEP (*crtbegin?.o(.ctors)) |
|||
/* We don't want to include the .ctor section from |
|||
the crtend.o file until after the sorted ctors. |
|||
The .ctor section from the crtend file contains the |
|||
end of ctors marker and it must be last */ |
|||
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) |
|||
KEEP (*(SORT(.ctors.*))) |
|||
KEEP (*(.ctors)) |
|||
} |
|||
.dtors : |
|||
{ |
|||
KEEP (*crtbegin.o(.dtors)) |
|||
KEEP (*crtbegin?.o(.dtors)) |
|||
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) |
|||
KEEP (*(SORT(.dtors.*))) |
|||
KEEP (*(.dtors)) |
|||
} |
|||
.jcr : { KEEP (*(.jcr)) } |
|||
.data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) } |
|||
.dynamic : { *(.dynamic) } |
|||
. = DATA_SEGMENT_RELRO_END (0, .); |
|||
.got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) } |
|||
.data : |
|||
{ |
|||
PROVIDE (__data_start = .); |
|||
*(.data .data.* .gnu.linkonce.d.*) |
|||
SORT(CONSTRUCTORS) |
|||
} |
|||
.data1 : { *(.data1) } |
|||
_edata = .; PROVIDE (edata = .); |
|||
__bss_start = .; |
|||
__bss_start__ = .; |
|||
.bss : |
|||
{ |
|||
*(.dynbss) |
|||
*(.bss .bss.* .gnu.linkonce.b.*) |
|||
*(COMMON) |
|||
/* Align here to ensure that the .bss section occupies space up to |
|||
_end. Align after .bss to ensure correct alignment even if the |
|||
.bss section disappears because there are no input sections. |
|||
FIXME: Why do we need it? When there is no .bss section, we don't |
|||
pad the .data section. */ |
|||
. = ALIGN(. != 0 ? 32 / 8 : 1); |
|||
} |
|||
_bss_end__ = . ; __bss_end__ = . ; |
|||
. = ALIGN(32 / 8); |
|||
. = ALIGN(32 / 8); |
|||
__end__ = . ; |
|||
_end = .; PROVIDE (end = .); |
|||
. = DATA_SEGMENT_END (.); |
|||
/* Stabs debugging sections. */ |
|||
.stab 0 : { *(.stab) } |
|||
.stabstr 0 : { *(.stabstr) } |
|||
.stab.excl 0 : { *(.stab.excl) } |
|||
.stab.exclstr 0 : { *(.stab.exclstr) } |
|||
.stab.index 0 : { *(.stab.index) } |
|||
.stab.indexstr 0 : { *(.stab.indexstr) } |
|||
.comment 0 : { *(.comment) } |
|||
/* DWARF debug sections. |
|||
Symbols in the DWARF debugging sections are relative to the beginning |
|||
of the section so we begin them at 0. */ |
|||
/* DWARF 1 */ |
|||
.debug 0 : { *(.debug) } |
|||
.line 0 : { *(.line) } |
|||
/* GNU DWARF 1 extensions */ |
|||
.debug_srcinfo 0 : { *(.debug_srcinfo) } |
|||
.debug_sfnames 0 : { *(.debug_sfnames) } |
|||
/* DWARF 1.1 and DWARF 2 */ |
|||
.debug_aranges 0 : { *(.debug_aranges) } |
|||
.debug_pubnames 0 : { *(.debug_pubnames) } |
|||
/* DWARF 2 */ |
|||
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } |
|||
.debug_abbrev 0 : { *(.debug_abbrev) } |
|||
.debug_line 0 : { *(.debug_line) } |
|||
.debug_frame 0 : { *(.debug_frame) } |
|||
.debug_str 0 : { *(.debug_str) } |
|||
.debug_loc 0 : { *(.debug_loc) } |
|||
.debug_macinfo 0 : { *(.debug_macinfo) } |
|||
/* SGI/MIPS DWARF 2 extensions */ |
|||
.debug_weaknames 0 : { *(.debug_weaknames) } |
|||
.debug_funcnames 0 : { *(.debug_funcnames) } |
|||
.debug_typenames 0 : { *(.debug_typenames) } |
|||
.debug_varnames 0 : { *(.debug_varnames) } |
|||
/* DWARF 3 */ |
|||
.debug_pubtypes 0 : { *(.debug_pubtypes) } |
|||
.debug_ranges 0 : { *(.debug_ranges) } |
|||
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } |
|||
.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) } |
|||
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) } |
|||
} |
|||
@ -0,0 +1,8 @@ |
|||
|
|||
tmpdir/fdpic-shared.so: file format elf32-(little|big)arm |
|||
|
|||
DYNAMIC RELOCATION RECORDS |
|||
OFFSET TYPE VALUE |
|||
.* R_ARM_FUNCDESC_VALUE my_shared_func3 |
|||
|
|||
|
|||
@ -0,0 +1,52 @@ |
|||
.arch armv7-r |
|||
.eabi_attribute 20, 1 |
|||
.eabi_attribute 21, 1 |
|||
.eabi_attribute 23, 3 |
|||
.eabi_attribute 24, 1 |
|||
.eabi_attribute 25, 1 |
|||
.eabi_attribute 26, 2 |
|||
.eabi_attribute 30, 2 |
|||
.eabi_attribute 34, 1 |
|||
.eabi_attribute 18, 4 |
|||
.file "shared.c" |
|||
.text |
|||
.align 2 |
|||
.global my_shared_func1 |
|||
.syntax unified |
|||
.arm |
|||
.fpu softvfp |
|||
.type my_shared_func1, %function |
|||
my_shared_func1: |
|||
@ args = 0, pretend = 0, frame = 0 |
|||
@ frame_needed = 0, uses_anonymous_args = 0 |
|||
@ link register save eliminated. |
|||
bx lr |
|||
.size my_shared_func1, .-my_shared_func1 |
|||
.align 2 |
|||
.global my_shared_func3 |
|||
.syntax unified |
|||
.arm |
|||
.fpu softvfp |
|||
.type my_shared_func3, %function |
|||
my_shared_func3: |
|||
@ args = 0, pretend = 0, frame = 0 |
|||
@ frame_needed = 0, uses_anonymous_args = 0 |
|||
@ link register save eliminated. |
|||
mov r0, #0 |
|||
bx lr |
|||
.size my_shared_func3, .-my_shared_func3 |
|||
.align 2 |
|||
.global my_shared_func2 |
|||
.syntax unified |
|||
.arm |
|||
.fpu softvfp |
|||
.type my_shared_func2, %function |
|||
my_shared_func2: |
|||
@ args = 0, pretend = 0, frame = 0 |
|||
@ frame_needed = 0, uses_anonymous_args = 0 |
|||
push {r4, lr} |
|||
mov r4, r9 |
|||
bl my_shared_func3(PLT) |
|||
mov r9, r4 |
|||
pop {r4, pc} |
|||
.size my_shared_func2, .-my_shared_func2 |
|||
@ -0,0 +1,15 @@ |
|||
|
|||
Symbol table for image: |
|||
+Num +Buc: +Value +Size +Type +Bind +Vis +Ndx +Name |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 _edata |
|||
+.. +..: ........ +20 +FUNC +GLOBAL +DEFAULT +6 my_shared_func2 |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 __bss_start__ |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 _end |
|||
+.. +..: ........ +8 +FUNC +GLOBAL +DEFAULT +6 my_shared_func3 |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 __bss_end__ |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 __end__ |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +7 __ROFIXUP_LIST__ |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 __bss_start |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +7 __ROFIXUP_END__ |
|||
+.. +..: ........ +4 +FUNC +GLOBAL +DEFAULT +6 my_shared_func1 |
|||
+.. +..: ........ +0 +NOTYPE +GLOBAL +DEFAULT +9 _bss_end__ |
|||
Loading…
Reference in new issue