2009-02-23 Christophe Lyon <christophe.lyon@st.com>

bfd/
	* elf32-arm.c (stub_insn_type): New type.
	(stub_reloc_type): Likewise.
	(insn_sequence): Likewise.
	(elf32_arm_stub_long_branch_any_any): Encode using insn_sequence.
	(elf32_arm_stub_long_branch_v4t_arm_thumb): Likewise.
	(elf32_arm_stub_long_branch_thumb_only): Likewise.
	(elf32_arm_stub_long_branch_v4t_thumb_arm): Likewise.
	(elf32_arm_stub_short_branch_v4t_thumb_arm): Likewise.
	(elf32_arm_stub_long_branch_any_any_pic): Likewise.
	(elf32_arm_stub_hash_entry): Add new helper fields.
	(stub_hash_newfunc): Initialize these new fields.
	(arm_build_one_stub): Encode Arm and Thumb instructions separately
	to take endianness into account.
	(arm_size_one_stub): Compute size of stubs using insn_sequence.
	(arm_map_one_stub): Code is now more generic, thanks to
	insn_sequence.

	ld/testsuite/
	* ld-arm/arm-elf.exp: Add new farcall-thumb-arm-be8 test.
	* ld-arm/farcall-thumb-arm-be8.d: New expected result.
	* ld-arm/farcall-arm-arm-be8.d: Replace wildcards by instructions.
This commit is contained in:
Daniel Jacobowitz 2009-02-23 21:48:53 +00:00
parent 4c664d7bf7
commit 461a49caca
6 changed files with 257 additions and 171 deletions

View File

@ -1,3 +1,22 @@
2009-02-20 Christophe Lyon <christophe.lyon@st.com>
* elf32-arm.c (stub_insn_type): New type.
(stub_reloc_type): Likewise.
(insn_sequence): Likewise.
(elf32_arm_stub_long_branch_any_any): Encode using insn_sequence.
(elf32_arm_stub_long_branch_v4t_arm_thumb): Likewise.
(elf32_arm_stub_long_branch_thumb_only): Likewise.
(elf32_arm_stub_long_branch_v4t_thumb_arm): Likewise.
(elf32_arm_stub_short_branch_v4t_thumb_arm): Likewise.
(elf32_arm_stub_long_branch_any_any_pic): Likewise.
(elf32_arm_stub_hash_entry): Add new helper fields.
(stub_hash_newfunc): Initialize these new fields.
(arm_build_one_stub): Encode Arm and Thumb instructions separately
to take endianness into account.
(arm_size_one_stub): Compute size of stubs using insn_sequence.
(arm_map_one_stub): Code is now more generic, thanks to
insn_sequence.
2009-02-23 Christophe Lyon <christophe.lyon@st.com>
* elf32-arm.c (elf32_arm_stub_long_branch_thumb_only): Fix stub

View File

@ -2010,63 +2010,92 @@ static const bfd_vma elf32_arm_symbian_plt_entry [] =
#define THM2_MAX_FWD_BRANCH_OFFSET (((1 << 24) - 2) + 4)
#define THM2_MAX_BWD_BRANCH_OFFSET (-(1 << 24) + 4)
enum stub_insn_type
{
THUMB16_TYPE = 1,
THUMB32_TYPE,
ARM_TYPE,
DATA_TYPE
};
enum stub_reloc_type
{
STUB_RELOC_NONE = 0,
STUB_RELOC_ABS,
STUB_RELOC_PIC,
};
#define THUMB16_INSN(X) {(X), THUMB16_TYPE, R_ARM_NONE, 0}
#define THUMB32_INSN(X) {(X), THUMB32_TYPE, R_ARM_NONE, 0}
#define ARM_INSN(X) {(X), ARM_TYPE, R_ARM_NONE, 0}
#define ARM_REL_INSN(X, Z) {(X), ARM_TYPE, R_ARM_JUMP24, (Z)}
#define DATA_WORD(X,Y,Z) {(X), DATA_TYPE, (Y), (Z)}
typedef struct
{
bfd_vma data;
enum stub_insn_type type;
enum stub_reloc_type reloc_type;
int reloc_addend;
} insn_sequence;
/* Arm/Thumb -> Arm/Thumb long branch stub. On V5T and above, use blx
to reach the stub if necessary. */
static const bfd_vma elf32_arm_stub_long_branch_any_any[] =
static const insn_sequence elf32_arm_stub_long_branch_any_any[] =
{
0xe51ff004, /* ldr pc, [pc, #-4] */
0x00000000, /* dcd R_ARM_ABS32(X) */
ARM_INSN(0xe51ff004), /* ldr pc, [pc, #-4] */
DATA_WORD(0, R_ARM_ABS32, 0), /* dcd R_ARM_ABS32(X) */
};
/* V4T Arm -> Thumb long branch stub. Used on V4T where blx is not
available. */
static const bfd_vma elf32_arm_stub_long_branch_v4t_arm_thumb[] =
static const insn_sequence elf32_arm_stub_long_branch_v4t_arm_thumb[] =
{
0xe59fc000, /* ldr ip, [pc, #0] */
0xe12fff1c, /* bx ip */
0x00000000, /* dcd R_ARM_ABS32(X) */
ARM_INSN(0xe59fc000), /* ldr ip, [pc, #0] */
ARM_INSN(0xe12fff1c), /* bx ip */
DATA_WORD(0, R_ARM_ABS32, 0), /* dcd R_ARM_ABS32(X) */
};
/* Thumb -> Thumb long branch stub. Used on architectures which
support only this mode, or on V4T where it is expensive to switch
to ARM. */
static const bfd_vma elf32_arm_stub_long_branch_thumb_only[] =
static const insn_sequence elf32_arm_stub_long_branch_thumb_only[] =
{
0x4802b401, /* push {r0} */
/* ldr r0, [pc, #8] */
0xbc014684, /* mov ip, r0 */
/* pop {r0} */
0xbf004760, /* bx ip */
/* nop */
0x00000000, /* dcd R_ARM_ABS32(X) */
THUMB16_INSN(0xb401), /* push {r0} */
THUMB16_INSN(0x4802), /* ldr r0, [pc, #8] */
THUMB16_INSN(0x4684), /* mov ip, r0 */
THUMB16_INSN(0xbc01), /* pop {r0} */
THUMB16_INSN(0x4760), /* bx ip */
THUMB16_INSN(0xbf00), /* nop */
DATA_WORD(0, R_ARM_ABS32, 0), /* dcd R_ARM_ABS32(X) */
};
/* V4T Thumb -> ARM long branch stub. Used on V4T where blx is not
available. */
static const bfd_vma elf32_arm_stub_long_branch_v4t_thumb_arm[] =
static const insn_sequence elf32_arm_stub_long_branch_v4t_thumb_arm[] =
{
0x46c04778, /* bx pc */
/* nop */
0xe51ff004, /* ldr pc, [pc, #-4] */
0x00000000, /* dcd R_ARM_ABS32(X) */
THUMB16_INSN(0x4778), /* bx pc */
THUMB16_INSN(0x46c0), /* nop */
ARM_INSN(0xe51ff004), /* ldr pc, [pc, #-4] */
DATA_WORD(0, R_ARM_ABS32, 0), /* dcd R_ARM_ABS32(X) */
};
/* V4T Thumb -> ARM short branch stub. Shorter variant of the above
one, when the destination is close enough. */
static const bfd_vma elf32_arm_stub_short_branch_v4t_thumb_arm[] =
static const insn_sequence elf32_arm_stub_short_branch_v4t_thumb_arm[] =
{
0x46c04778, /* bx pc */
/* nop */
0xea000000, /* b (X) */
THUMB16_INSN(0x4778), /* bx pc */
THUMB16_INSN(0x46c0), /* nop */
ARM_REL_INSN(0xea000000, -8), /* b (X-8) */
};
/* ARM/Thumb -> ARM/Thumb long branch stub, PIC. On V5T and above, use
blx to reach the stub if necessary. */
static const bfd_vma elf32_arm_stub_long_branch_any_any_pic[] =
static const insn_sequence elf32_arm_stub_long_branch_any_any_pic[] =
{
0xe59fc000, /* ldr r12, [pc] */
0xe08ff00c, /* add pc, pc, ip */
0x00000000, /* dcd R_ARM_REL32(X-4) */
ARM_INSN(0xe59fc000), /* ldr r12, [pc] */
ARM_INSN(0xe08ff00c), /* add pc, pc, ip */
DATA_WORD(0, R_ARM_REL32, -4), /* dcd R_ARM_REL32(X-4) */
};
/* Section name for stubs is the associated section name plus this
@ -2100,7 +2129,14 @@ struct elf32_arm_stub_hash_entry
bfd_vma target_value;
asection *target_section;
/* The stub type. */
enum elf32_arm_stub_type stub_type;
/* Its encoding size in bytes. */
int stub_size;
/* Its template. */
const insn_sequence *stub_template;
/* The size of the template (number of entries). */
int stub_template_size;
/* The symbol table entry, if any, that this was derived from. */
struct elf32_arm_link_hash_entry *h;
@ -2469,6 +2505,9 @@ stub_hash_newfunc (struct bfd_hash_entry *entry,
eh->target_value = 0;
eh->target_section = NULL;
eh->stub_type = arm_stub_none;
eh->stub_size = 0;
eh->stub_template = NULL;
eh->stub_template_size = 0;
eh->h = NULL;
eh->id_sec = NULL;
}
@ -3108,9 +3147,11 @@ arm_build_one_stub (struct bfd_hash_entry *gen_entry,
bfd_vma sym_value;
int template_size;
int size;
const bfd_vma *template;
const insn_sequence *template;
int i;
struct elf32_arm_link_hash_table * globals;
int stub_reloc_idx = -1;
int stub_reloc_offset;
/* Massage our args to the form they really have. */
stub_entry = (struct elf32_arm_stub_hash_entry *) gen_entry;
@ -3136,101 +3177,61 @@ arm_build_one_stub (struct bfd_hash_entry *gen_entry,
+ stub_entry->target_section->output_offset
+ stub_entry->target_section->output_section->vma);
switch (stub_entry->stub_type)
{
case arm_stub_long_branch_any_any:
template = elf32_arm_stub_long_branch_any_any;
template_size = (sizeof (elf32_arm_stub_long_branch_any_any) / sizeof (bfd_vma)) * 4;
break;
case arm_stub_long_branch_v4t_arm_thumb:
template = elf32_arm_stub_long_branch_v4t_arm_thumb;
template_size = (sizeof (elf32_arm_stub_long_branch_v4t_arm_thumb) / sizeof (bfd_vma)) * 4;
break;
case arm_stub_long_branch_thumb_only:
template = elf32_arm_stub_long_branch_thumb_only;
template_size = (sizeof (elf32_arm_stub_long_branch_thumb_only) / sizeof (bfd_vma)) * 4;
break;
case arm_stub_long_branch_v4t_thumb_arm:
template = elf32_arm_stub_long_branch_v4t_thumb_arm;
template_size = (sizeof (elf32_arm_stub_long_branch_v4t_thumb_arm) / sizeof (bfd_vma)) * 4;
break;
case arm_stub_short_branch_v4t_thumb_arm:
template = elf32_arm_stub_short_branch_v4t_thumb_arm;
template_size = (sizeof(elf32_arm_stub_short_branch_v4t_thumb_arm) / sizeof (bfd_vma)) * 4;
break;
case arm_stub_long_branch_any_any_pic:
template = elf32_arm_stub_long_branch_any_any_pic;
template_size = (sizeof (elf32_arm_stub_long_branch_any_any_pic) / sizeof (bfd_vma)) * 4;
break;
default:
BFD_FAIL ();
return FALSE;
}
template = stub_entry->stub_template;
template_size = stub_entry->stub_template_size;
size = 0;
for (i = 0; i < (template_size / 4); i++)
for (i = 0; i < template_size; i++)
{
/* A 0 pattern is a placeholder, every other pattern is an
instruction. */
if (template[i] != 0)
put_arm_insn (globals, stub_bfd, template[i], loc + size);
else
bfd_put_32 (stub_bfd, template[i], loc + size);
switch(template[i].type)
{
case THUMB16_TYPE:
put_thumb_insn (globals, stub_bfd, template[i].data, loc + size);
size += 2;
break;
size += 4;
case ARM_TYPE:
put_arm_insn (globals, stub_bfd, template[i].data, loc + size);
/* Handle cases where the target is encoded within the
instruction. */
if (template[i].reloc_type == R_ARM_JUMP24)
{
stub_reloc_idx = i;
stub_reloc_offset = size;
}
size += 4;
break;
case DATA_TYPE:
bfd_put_32 (stub_bfd, template[i].data, loc + size);
stub_reloc_idx = i;
stub_reloc_offset = size;
size += 4;
break;
default:
BFD_FAIL ();
return FALSE;
}
}
stub_sec->size += size;
/* Stub size has already been computed in arm_size_one_stub. Check
consistency. */
BFD_ASSERT (size == stub_entry->stub_size);
/* Destination is Thumb. Force bit 0 to 1 to reflect this. */
if (stub_entry->st_type == STT_ARM_TFUNC)
sym_value |= 1;
switch (stub_entry->stub_type)
{
case arm_stub_long_branch_any_any:
_bfd_final_link_relocate (elf32_arm_howto_from_type (R_ARM_ABS32),
stub_bfd, stub_sec, stub_sec->contents,
stub_entry->stub_offset + 4, sym_value, 0);
break;
case arm_stub_long_branch_v4t_arm_thumb:
_bfd_final_link_relocate (elf32_arm_howto_from_type (R_ARM_ABS32),
stub_bfd, stub_sec, stub_sec->contents,
stub_entry->stub_offset + 8, sym_value, 0);
break;
case arm_stub_long_branch_thumb_only:
_bfd_final_link_relocate (elf32_arm_howto_from_type (R_ARM_ABS32),
stub_bfd, stub_sec, stub_sec->contents,
stub_entry->stub_offset + 12, sym_value, 0);
break;
case arm_stub_long_branch_v4t_thumb_arm:
_bfd_final_link_relocate (elf32_arm_howto_from_type (R_ARM_ABS32),
stub_bfd, stub_sec, stub_sec->contents,
stub_entry->stub_offset + 8, sym_value, 0);
break;
case arm_stub_short_branch_v4t_thumb_arm:
{
long int rel_offset;
static const insn32 t2a3_b_insn = 0xea000000;
/* Assume there is one and only one entry to relocate in each stub. */
BFD_ASSERT (stub_reloc_idx != -1);
rel_offset = sym_value - (stub_addr + 8 + 4);
put_arm_insn (globals, stub_bfd,
(bfd_vma) t2a3_b_insn | ((rel_offset >> 2) & 0x00FFFFFF),
loc + 4);
}
break;
case arm_stub_long_branch_any_any_pic:
/* We want the value relative to the address 8 bytes from the
start of the stub. */
_bfd_final_link_relocate (elf32_arm_howto_from_type (R_ARM_REL32),
stub_bfd, stub_sec, stub_sec->contents,
stub_entry->stub_offset + 8, sym_value, -4);
break;
default:
BFD_FAIL();
break;
}
_bfd_final_link_relocate (elf32_arm_howto_from_type (template[stub_reloc_idx].reloc_type),
stub_bfd, stub_sec, stub_sec->contents,
stub_entry->stub_offset + stub_reloc_offset,
sym_value, template[stub_reloc_idx].reloc_addend);
return TRUE;
}
@ -3244,7 +3245,7 @@ arm_size_one_stub (struct bfd_hash_entry *gen_entry,
{
struct elf32_arm_stub_hash_entry *stub_entry;
struct elf32_arm_link_hash_table *htab;
const bfd_vma *template;
const insn_sequence *template;
int template_size;
int size;
int i;
@ -3257,27 +3258,28 @@ arm_size_one_stub (struct bfd_hash_entry *gen_entry,
{
case arm_stub_long_branch_any_any:
template = elf32_arm_stub_long_branch_any_any;
template_size = (sizeof (elf32_arm_stub_long_branch_any_any) / sizeof (bfd_vma)) * 4;
template_size = sizeof (elf32_arm_stub_long_branch_any_any) / sizeof (insn_sequence);
break;
case arm_stub_long_branch_v4t_arm_thumb:
template = elf32_arm_stub_long_branch_v4t_arm_thumb;
template_size = (sizeof (elf32_arm_stub_long_branch_v4t_arm_thumb) / sizeof (bfd_vma)) * 4;
template_size = sizeof (elf32_arm_stub_long_branch_v4t_arm_thumb) / sizeof (insn_sequence);
break;
case arm_stub_long_branch_thumb_only:
template = elf32_arm_stub_long_branch_thumb_only;
template_size = (sizeof (elf32_arm_stub_long_branch_thumb_only) / sizeof (bfd_vma)) * 4;
template_size = sizeof (elf32_arm_stub_long_branch_thumb_only) / sizeof (insn_sequence);
break;
case arm_stub_long_branch_v4t_thumb_arm:
template = elf32_arm_stub_long_branch_v4t_thumb_arm;
template_size = (sizeof (elf32_arm_stub_long_branch_v4t_thumb_arm) / sizeof (bfd_vma)) * 4;
template_size = sizeof (elf32_arm_stub_long_branch_v4t_thumb_arm) / sizeof (insn_sequence);
break;
case arm_stub_short_branch_v4t_thumb_arm:
template = elf32_arm_stub_short_branch_v4t_thumb_arm;
template_size = (sizeof(elf32_arm_stub_short_branch_v4t_thumb_arm) / sizeof (bfd_vma)) * 4;
template_size = sizeof (elf32_arm_stub_short_branch_v4t_thumb_arm) / sizeof (insn_sequence);
break;
case arm_stub_long_branch_any_any_pic:
template = elf32_arm_stub_long_branch_any_any_pic;
template_size = (sizeof (elf32_arm_stub_long_branch_any_any_pic) / sizeof (bfd_vma)) * 4;
template_size = sizeof (elf32_arm_stub_long_branch_any_any_pic) / sizeof (insn_sequence);
break;
default:
BFD_FAIL ();
@ -3286,10 +3288,35 @@ arm_size_one_stub (struct bfd_hash_entry *gen_entry,
}
size = 0;
for (i = 0; i < (template_size / 4); i++)
size += 4;
for (i = 0; i < template_size; i++)
{
switch(template[i].type)
{
case THUMB16_TYPE:
size += 2;
break;
case ARM_TYPE:
size += 4;
break;
case DATA_TYPE:
size += 4;
break;
default:
BFD_FAIL ();
return FALSE;
}
}
stub_entry->stub_size = size;
stub_entry->stub_template = template;
stub_entry->stub_template_size = template_size;
size = (size + 7) & ~7;
stub_entry->stub_sec->size += size;
return TRUE;
}
@ -11665,6 +11692,11 @@ arm_map_one_stub (struct bfd_hash_entry * gen_entry,
bfd_vma addr;
char *stub_name;
output_arch_syminfo *osi;
const insn_sequence *template;
enum stub_insn_type prev_type;
int size;
int i;
enum map_symbol_type sym_type;
/* Massage our args to the form they really have. */
stub_entry = (struct elf32_arm_stub_hash_entry *) gen_entry;
@ -11683,62 +11715,70 @@ arm_map_one_stub (struct bfd_hash_entry * gen_entry,
addr = (bfd_vma) stub_entry->stub_offset;
stub_name = stub_entry->output_name;
switch (stub_entry->stub_type)
template = stub_entry->stub_template;
switch(template[0].type)
{
case arm_stub_long_branch_any_any:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr, 8))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_DATA, addr + 4))
case ARM_TYPE:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr, stub_entry->stub_size))
return FALSE;
break;
case arm_stub_long_branch_v4t_arm_thumb:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr, 12))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_DATA, addr + 8))
return FALSE;
break;
case arm_stub_long_branch_thumb_only:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr | 1, 16))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_THUMB, addr))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_DATA, addr + 12))
return FALSE;
break;
case arm_stub_long_branch_v4t_thumb_arm:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr | 1, 20))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_THUMB, addr))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_ARM, addr + 4))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_DATA, addr + 8))
return FALSE;
break;
case arm_stub_short_branch_v4t_thumb_arm:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr | 1, 8))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_THUMB, addr))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_ARM, addr + 4))
return FALSE;
break;
case arm_stub_long_branch_any_any_pic:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr, 12))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_ARM, addr))
return FALSE;
if (!elf32_arm_output_map_sym (osi, ARM_MAP_DATA, addr + 8))
case THUMB16_TYPE:
if (!elf32_arm_output_stub_sym (osi, stub_name, addr | 1,
stub_entry->stub_size))
return FALSE;
break;
default:
BFD_FAIL ();
}
prev_type = DATA_TYPE;
size = 0;
for (i = 0; i < stub_entry->stub_template_size; i++)
{
switch(template[i].type)
{
case ARM_TYPE:
sym_type = ARM_MAP_ARM;
break;
case THUMB16_TYPE:
sym_type = ARM_MAP_THUMB;
break;
case DATA_TYPE:
sym_type = ARM_MAP_DATA;
break;
default:
BFD_FAIL ();
}
if (template[i].type != prev_type)
{
prev_type = template[i].type;
if (!elf32_arm_output_map_sym (osi, sym_type, addr + size))
return FALSE;
}
switch(template[i].type)
{
case ARM_TYPE:
size += 4;
break;
case THUMB16_TYPE:
size += 2;
break;
case DATA_TYPE:
size += 4;
break;
default:
BFD_FAIL ();
}
}
return TRUE;
}

View File

@ -1,4 +1,11 @@
2009-02-23 Christophe Lyon <christophe.lyon@st.com>
* ld-arm/arm-elf.exp: Add new farcall-thumb-arm-be8 test.
* ld-arm/farcall-thumb-arm-be8.d: New expected result.
* ld-arm/farcall-arm-arm-be8.d: Replace wildcards by instructions.
2009-02-23 Christophe Lyon <christophe.lyon@st.com>
* ld-arm/arm-elf.exp: Rewrite non-EABI variants of
thumb2-bl-as-thumb1-bad and thumb2-bl-bad tests, which now
pass. farcall-thumb-thumb now passes in EABI mode.

View File

@ -297,6 +297,9 @@ set armeabitests {
{"Thumb-ARM farcall" "-Ttext 0x1000 --section-start .foo=0x2001014" "-W" {farcall-thumb-arm.s}
{{objdump -d farcall-thumb-arm.d}}
"farcall-thumb-arm"}
{"Thumb-ARM farcall (BE8)" "-Ttext 0x1000 --section-start .foo=0x2001014 -EB --be8" "-W -EB" {farcall-thumb-arm.s}
{{objdump -d farcall-thumb-arm-be8.d}}
"farcall-thumb-arm"}
{"Thumb-ARM (short) call" "-Ttext 0x1000 --section-start .foo=0x0002014" "-W" {farcall-thumb-arm-short.s}
{{objdump -d farcall-thumb-arm-short.d}}
"farcall-thumb-arm-short"}

View File

@ -3,12 +3,12 @@
Disassembly of section .text:
00001000 <__bar_veneer>:
1000: 04f01fe5 .*
1000: 04f01fe5 ldr pc, \[pc, #-4\] ; 1004 <__bar_veneer\+0x4>
1004: 02001020 .word 0x02001020
00001008 <_start>:
1008: fcffffeb .*
1008: fcffffeb bl 1000 <__bar_veneer>
Disassembly of section .foo:
02001020 <bar>:
2001020: 1eff2fe1 .*
2001020: 1eff2fe1 bx lr

View File

@ -0,0 +1,17 @@
.*: file format .*
Disassembly of section .text:
00001000 <__bar_from_thumb>:
1000: 7847 bx pc
1002: c046 nop.*
1004: 04f01fe5 ldr pc, \[pc, #-4\] ; 1008 <__bar_from_thumb\+0x8>
1008: 02001014 .word 0x02001014
100c: 00000000 .word 0x00000000
00001010 <_start>:
1010: fff7 f6ff bl 1000 <__bar_from_thumb>
Disassembly of section .foo:
02001014 <bar>:
2001014: 1eff2fe1 bx lr