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2009-06-22 Christophe Lyon <christophe.lyon@st.com>
bfd/ * elf32-arm.c (elf32_arm_size_stubs): Use PLT address as destination for defined dynamic symbols when deciding whether to insert a stub or not. (allocate_dynrelocs): Make sure functions are not marked as Thumb when actually accessed through a PLT, even when generating a shared lib. ld/testsuite: * ld-arm/farcall-mixed-app.s: Add new references to check more modes switching. * ld-arm/farcall-mixed-lib1.s: Likewise. * ld-arm/farcall-mixed-app-v5.d: Update expected result. * farcall-mixed-app.d: Likewise. * ld-arm/farcall-mixed-lib.d: Likewise.
This commit is contained in:
Christophe Lyon
parent
11275b5ad5
commit
022f83127a
@ -1,3 +1,12 @@
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2009-06-22 Christophe Lyon <christophe.lyon@st.com>
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* elf32-arm.c (elf32_arm_size_stubs): Use PLT address as
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destination for defined dynamic symbols when deciding whether to
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insert a stub or not.
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(allocate_dynrelocs): Make sure functions are not marked as Thumb
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when actually accessed through a PLT, even when generating a
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shared lib.
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2009-06-22 Tristan Gingold <gingold@adacore.com>
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* mach-o.c (bfd_mach_o_canonicalize_reloc): Append a sentinel to
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@ -4361,7 +4361,25 @@ elf32_arm_size_stubs (bfd *output_bfd,
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{
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sym_sec = hash->root.root.u.def.section;
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sym_value = hash->root.root.u.def.value;
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if (sym_sec->output_section != NULL)
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struct elf32_arm_link_hash_table *globals =
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elf32_arm_hash_table (info);
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/* For a destination in a shared library,
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use the PLT stub as target address to
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decide whether a branch stub is
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needed. */
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if (globals->splt != NULL && hash != NULL
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&& hash->root.plt.offset != (bfd_vma) -1)
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{
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sym_sec = globals->splt;
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sym_value = hash->root.plt.offset;
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if (sym_sec->output_section != NULL)
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destination = (sym_value
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+ sym_sec->output_offset
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+ sym_sec->output_section->vma);
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}
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else if (sym_sec->output_section != NULL)
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destination = (sym_value + irela->r_addend
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+ sym_sec->output_offset
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+ sym_sec->output_section->vma);
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@ -11277,14 +11295,14 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
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{
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h->root.u.def.section = s;
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h->root.u.def.value = h->plt.offset;
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/* Make sure the function is not marked as Thumb, in case
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it is the target of an ABS32 relocation, which will
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point to the PLT entry. */
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if (ELF_ST_TYPE (h->type) == STT_ARM_TFUNC)
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h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC);
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}
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/* Make sure the function is not marked as Thumb, in case
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it is the target of an ABS32 relocation, which will
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point to the PLT entry. */
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if (ELF_ST_TYPE (h->type) == STT_ARM_TFUNC)
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h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC);
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/* Make room for this entry. */
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s->size += htab->plt_entry_size;
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@ -1,3 +1,13 @@
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2009-06-22 Christophe Lyon <christophe.lyon@st.com>
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ld/testsuite:
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* ld-arm/farcall-mixed-app.s: Add new references to check more
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modes switching.
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* ld-arm/farcall-mixed-lib1.s: Likewise.
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* ld-arm/farcall-mixed-app-v5.d: Update expected result.
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* farcall-mixed-app.d: Likewise.
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* ld-arm/farcall-mixed-lib.d: Likewise.
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2009-06-22 Dave Korn <dave.korn.cygwin@gmail.com>
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* ld-pe/pe-run.exp (proc test_direct_link_dll): Fix incorrect
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@ -25,11 +25,11 @@ Disassembly of section .text:
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.*: e1a0c00d mov ip, sp
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.*: e92dd800 push {fp, ip, lr, pc}
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.*: eb000008 bl .* <__app_func_veneer>
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.*: ebfffff8 bl .* <_start-0xc>
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.*: ebfffff4 bl .* <_start-0x18>
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.*: e89d6800 ldm sp, {fp, sp, lr}
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.*: e12fff1e bx lr
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.* <app_tfunc_close>:
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.*: b500 push {lr}
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@ -49,12 +49,12 @@ Disassembly of section .far_arm:
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.* <app_func>:
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.*: e1a0c00d mov ip, sp
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.*: e92dd800 push {fp, ip, lr, pc}
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.*: eb000008 bl .* <__lib_func1_veneer>
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.*: eb00000a bl .* <__lib_func1_veneer>
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.*: eb000007 bl .* <__lib_func2_veneer>
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.*: e89d6800 ldm sp, {fp, sp, lr}
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.*: e12fff1e bx lr
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.* <app_func2>:
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.*: e12fff1e bx lr
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@ -62,8 +62,11 @@ Disassembly of section .far_arm:
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.* <__lib_func2_veneer>:
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.*: e51ff004 ldr pc, \[pc, #-4\] ; 2100034 <__lib_func2_veneer\+0x4>
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.*: 00008218 .word 0x00008218
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.* <__lib_func1_veneer>:
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.*: e51ff004 ldr pc, \[pc, #-4\] ; 2100034 <__lib_func1_veneer\+0x4>
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.*: e51ff004 ldr pc, \[pc, #-4\] ; 210003c <__lib_func1_veneer\+0x4>
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.*: 00008224 .word 0x00008224
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Disassembly of section .far_thumb:
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@ -27,11 +27,11 @@ Disassembly of section .text:
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.*: e1a0c00d mov ip, sp
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.*: e92dd800 push {fp, ip, lr, pc}
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.*: eb000008 bl .* <__app_func_veneer>
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.*: ebfffff5 bl .* <_start-0x18>
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.*: ebfffff1 bl .* <_start-0x24>
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.*: e89d6800 ldm sp, {fp, sp, lr}
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.*: e12fff1e bx lr
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.* <app_tfunc_close>:
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.*: b500 push {lr}
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@ -51,12 +51,12 @@ Disassembly of section .far_arm:
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.* <app_func>:
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.*: e1a0c00d mov ip, sp
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.*: e92dd800 push {fp, ip, lr, pc}
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.*: eb000008 bl .* <__lib_func1_veneer>
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.*: eb00000a bl .* <__lib_func1_veneer>
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.*: eb000007 bl .* <__lib_func2_veneer>
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.*: e89d6800 ldm sp, {fp, sp, lr}
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.*: e12fff1e bx lr
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.* <app_func2>:
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.*: e12fff1e bx lr
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@ -64,8 +64,11 @@ Disassembly of section .far_arm:
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.*: e1a00000 nop \(mov r0,r0\)
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.*: e1a00000 nop \(mov r0,r0\)
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.* <__lib_func2_veneer>:
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.*: e51ff004 ldr pc, \[pc, #-4\] ; 2100034 <__lib_func2_veneer\+0x4>
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.*: 0000821c .word 0x0000821c
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.* <__lib_func1_veneer>:
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.*: e51ff004 ldr pc, \[pc, #-4\] ; 2100034 <__lib_func1_veneer\+0x4>
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.*: e51ff004 ldr pc, \[pc, #-4\] ; 210003c <__lib_func1_veneer\+0x4>
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.*: 00008228 .word 0x00008228
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Disassembly of section .far_thumb:
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@ -5,6 +5,8 @@ _start:
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mov ip, sp
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stmdb sp!, {r11, ip, lr, pc}
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bl app_func
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bl lib_func1
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bl lib_func2
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ldmia sp, {r11, sp, lr}
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bx lr
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@ -30,6 +32,7 @@ app_func:
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mov ip, sp
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stmdb sp!, {r11, ip, lr, pc}
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bl lib_func1
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bl lib_func2
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ldmia sp, {r11, sp, lr}
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bx lr
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@ -17,6 +17,13 @@ Disassembly of section .plt:
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.*: e28fc6.* add ip, pc, #.* ; 0x.*
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.*: e28cca.* add ip, ip, #.* ; 0x.*
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.*: e5bcf.* ldr pc, \[ip, #.*\]!
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.*: e28fc6.* add ip, pc, #.* ; 0x.*
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.*: e28cca.* add ip, ip, #.* ; 0x.*
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.*: e5bcf.* ldr pc, \[ip, #.*\]!
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.*: e28fc6.* add ip, pc, #.* ; 0x.*
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.*: e28cca.* add ip, ip, #.* ; 0x.*
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.*: e5bcf.* ldr pc, \[ip, #.*\]!
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Disassembly of section .text:
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.* <lib_func1>:
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@ -24,46 +31,62 @@ Disassembly of section .text:
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.*: e92dd800 push {fp, ip, lr, pc}
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.*: ebfffff. bl .* <lib_func1-0x..?>
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.*: ebfffff. bl .* <lib_func1-0x..?>
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.*: ebfffff. bl .* <lib_func1-0x..?>
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.*: ebfffff. bl .* <lib_func1-0x..?>
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.*: e89d6800 ldm sp, {fp, sp, lr}
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.*: e12fff1e bx lr
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...
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.*: e1a00000 .word 0xe1a00000
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.*: e1a00000 .word 0xe1a00000
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.* <lib_func2>:
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.*: f000 e806 blx 1000300 <__app_func_from_thumb>
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.*: f000 e80a blx 100030c <__app_func_weak_from_thumb>
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.*: f000 e80e blx 1000350 <__app_func_from_thumb>
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.*: f000 e818 blx 1000368 <__app_func_weak_from_thumb>
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.*: f000 e810 blx 100035c <__lib_func3_from_thumb>
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.*: f000 e81a blx 1000374 <__lib_func4_from_thumb>
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.*: 4770 bx lr
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.* <__app_func_from_thumb>:
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.*: e59fc000 ldr ip, \[pc, #0\] ; 1000308 <__app_func_from_thumb\+0x8>
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.*: e59fc000 ldr ip, \[pc, #0\] ; 1000358 <__app_func_from_thumb\+0x8>
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.*: e08ff00c add pc, pc, ip
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.*: feffffa8 .word 0xfeffffa8
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.*: feffff84 .word 0xfeffff84
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.* <__lib_func3_from_thumb>:
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.*: e59fc000 ldr ip, \[pc, #0\] ; 1000364 <__lib_func3_from_thumb\+0x8>
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.*: e08ff00c add pc, pc, ip
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.*: feffff90 .word 0xfeffff90
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.* <__app_func_weak_from_thumb>:
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.*: e59fc000 ldr ip, \[pc, #0\] ; 1000314 <__app_func_weak_from_thumb\+0x8>
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.*: e59fc000 ldr ip, \[pc, #0\] ; 1000370 <__app_func_weak_from_thumb\+0x8>
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.*: e08ff00c add pc, pc, ip
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.*: feffffa8 .word 0xfeffffa8
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.*: feffff78 .word 0xfeffff78
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.* <__lib_func4_from_thumb>:
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.*: e59fc000 ldr ip, \[pc, #0\] ; 100037c <__lib_func4_from_thumb\+0x8>
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.*: e08ff00c add pc, pc, ip
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.*: feffff84 .word 0xfeffff84
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...
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.* <lib_func3>:
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.*: f000 e80c blx 200033c <__app_func_from_thumb>
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.*: f000 e804 blx 2000330 <__app_func_weak_from_thumb>
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.*: f000 e80c blx 20003ac <__app_func_from_thumb>
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.*: f000 e804 blx 20003a0 <__app_func_weak_from_thumb>
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.*: 4770 bx lr
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.*: 46c0 nop \(mov r8, r8\)
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.* <__app_func_weak_from_thumb>:
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.*: e59fc000 ldr ip, \[pc, #0\] ; 2000338 <__app_func_weak_from_thumb\+0x8>
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.*: e59fc000 ldr ip, \[pc, #0\] ; 20003a8 <__app_func_weak_from_thumb\+0x8>
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.*: e08ff00c add pc, pc, ip
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.*: fdffff84 .word 0xfdffff84
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.*: fdffff40 .word 0xfdffff40
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.* <__app_func_from_thumb>:
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.*: e59fc000 ldr ip, \[pc, #0\] ; 2000344 <__app_func_from_thumb\+0x8>
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.*: e59fc000 ldr ip, \[pc, #0\] ; 20003b4 <__app_func_from_thumb\+0x8>
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.*: e08ff00c add pc, pc, ip
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.*: fdffff6c .word 0xfdffff6c
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.*: fdffff28 .word 0xfdffff28
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...
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@ -14,6 +14,8 @@ lib_func1:
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bl app_func
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.weak app_func_weak
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bl app_func_weak
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bl lib_func3
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bl lib_func4
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ldmia sp, {r11, sp, lr}
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bx lr
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.size lib_func1, . - lib_func1
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@ -27,5 +29,7 @@ lib_func1:
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lib_func2:
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bl app_func
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bl app_func_weak
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bl lib_func3
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bl lib_func4
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bx lr
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.size lib_func2, . - lib_func2
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