diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2017-10-19 14:10:45 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2017-10-25 11:54:52 +0200 |
| commit | 6cd61517fb5217098b25c8f08dd45023de3f22bb (patch) | |
| tree | cf5765aeccf4f737ea624b2750b4856b73e4c060 /disas/arm.c | |
| parent | 0eea8cdd6d680e74f9f994bbb024d0c486b5cc3c (diff) | |
target/arm: Move BE32 disassembler fixup
The Capstone disassembler has its own big-endian fixup.
Doing this twice does not work, of course. Move our current
fixup from target/arm/cpu.c to disas/arm.c.
This makes read_memory_inner_func unused and can be removed.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'disas/arm.c')
| -rw-r--r-- | disas/arm.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/disas/arm.c b/disas/arm.c index 27396dd3e1..9967c45990 100644 --- a/disas/arm.c +++ b/disas/arm.c @@ -70,6 +70,17 @@ static void floatformat_to_double (unsigned char *data, double *dest) *dest = u.f; } +static int arm_read_memory(bfd_vma memaddr, bfd_byte *b, int length, + struct disassemble_info *info) +{ + assert((info->flags & INSN_ARM_BE32) == 0 || length == 2 || length == 4); + + if ((info->flags & INSN_ARM_BE32) != 0 && length == 2) { + memaddr ^= 2; + } + return info->read_memory_func(memaddr, b, length, info); +} + /* End of qemu specific additions. */ struct opcode32 @@ -3810,7 +3821,7 @@ find_ifthen_state (bfd_vma pc, struct disassemble_info *info, return; } addr -= 2; - status = info->read_memory_func (addr, (bfd_byte *)b, 2, info); + status = arm_read_memory (addr, (bfd_byte *)b, 2, info); if (status) return; @@ -3882,7 +3893,7 @@ print_insn_arm (bfd_vma pc, struct disassemble_info *info) info->bytes_per_chunk = size; printer = print_insn_data; - status = info->read_memory_func (pc, (bfd_byte *)b, size, info); + status = arm_read_memory (pc, (bfd_byte *)b, size, info); given = 0; if (little) for (i = size - 1; i >= 0; i--) @@ -3899,7 +3910,7 @@ print_insn_arm (bfd_vma pc, struct disassemble_info *info) info->bytes_per_chunk = 4; size = 4; - status = info->read_memory_func (pc, (bfd_byte *)b, 4, info); + status = arm_read_memory (pc, (bfd_byte *)b, 4, info); if (little) given = (b[0]) | (b[1] << 8) | (b[2] << 16) | ((unsigned)b[3] << 24); else @@ -3915,7 +3926,7 @@ print_insn_arm (bfd_vma pc, struct disassemble_info *info) info->bytes_per_chunk = 2; size = 2; - status = info->read_memory_func (pc, (bfd_byte *)b, 2, info); + status = arm_read_memory (pc, (bfd_byte *)b, 2, info); if (little) given = (b[0]) | (b[1] << 8); else @@ -3929,7 +3940,7 @@ print_insn_arm (bfd_vma pc, struct disassemble_info *info) || (given & 0xF800) == 0xF000 || (given & 0xF800) == 0xE800) { - status = info->read_memory_func (pc + 2, (bfd_byte *)b, 2, info); + status = arm_read_memory (pc + 2, (bfd_byte *)b, 2, info); if (little) given = (b[0]) | (b[1] << 8) | (given << 16); else |