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disas: arm-a64: Make printfer and stream variable 

In a normal disassembly flow, the printf() and stream being used varies
from disas job to job. In particular it varies if mixing monitor_disas
and target_disas.

Make both the printf() function and target stream settable in the
QEMUDisassmbler class.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Peter Crosthwaite 2015-06-23 20:57:34 -07:00 committed by Andreas Färber
parent 37b9de463b
commit fb200d5f00
1 changed files with 17 additions and 5 deletions
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22
disas/arm-a64.cc
View File

@ -35,16 +35,25 @@ static Disassembler *vixl_disasm = NULL;
*/
class QEMUDisassembler : public Disassembler {
public:
explicit QEMUDisassembler(FILE *stream) : stream_(stream) { }
QEMUDisassembler() : printf_(NULL), stream_(NULL) { }
~QEMUDisassembler() { }
void SetStream(FILE *stream) {
stream_ = stream;
}
void SetPrintf(int (*printf_fn)(FILE *, const char *, ...)) {
printf_ = printf_fn;
}
protected:
virtual void ProcessOutput(const Instruction *instr) {
fprintf(stream_, "%08" PRIx32 " %s",
printf_(stream_, "%08" PRIx32 " %s",
instr->InstructionBits(), GetOutput());
}
private:
int (*printf_)(FILE *, const char *, ...);
FILE *stream_;
};
@ -53,9 +62,9 @@ static int vixl_is_initialized(void)
return vixl_decoder != NULL;
}
static void vixl_init(FILE *f) {
static void vixl_init() {
vixl_decoder = new Decoder();
vixl_disasm = new QEMUDisassembler(f);
vixl_disasm = new QEMUDisassembler();
vixl_decoder->AppendVisitor(vixl_disasm);
}
@ -78,9 +87,12 @@ int print_insn_arm_a64(uint64_t addr, disassemble_info *info)
}
if (!vixl_is_initialized()) {
vixl_init(info->stream);
vixl_init();
}
((QEMUDisassembler *)vixl_disasm)->SetPrintf(info->fprintf_func);
((QEMUDisassembler *)vixl_disasm)->SetStream(info->stream);
instrval = bytes[0] | bytes[1] << 8 | bytes[2] << 16 | bytes[3] << 24;
instr = reinterpret_cast<const Instruction *>(&instrval);
vixl_disasm->MapCodeAddress(addr, instr);