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[POWERPC] Prepare for spu disassembly in xmon

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In order to do disassembly of spu binaries in xmon, we need to abstract
the disassembly function from ppc_inst_dump.

We do this by making the actual disassembly function a function pointer
that we pass to ppc_inst_dump(). To save updating all the callers, we
turn ppc_inst_dump() into generic_inst_dump() and make ppc_inst_dump()
a wrapper which always uses print_insn_powerpc().

Currently we pass the dialect into print_insn_powerpc(), but we always
pass 0 - so just make it a local.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
This commit is contained in:
Michael Ellerman 2006-11-23 00:46:42 +01:00 committed by Paul Mackerras
parent 24a24c85d3
commit 4c4c872368
2 changed files with 15 additions and 6 deletions
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6
arch/powerpc/xmon/ppc-dis.c
View File

@ -27,14 +27,14 @@ extern void print_address (unsigned long memaddr);
/* Print a PowerPC or POWER instruction. */
int
print_insn_powerpc (unsigned long insn, unsigned long memaddr, int dialect)
print_insn_powerpc (unsigned long insn, unsigned long memaddr)
{
const struct powerpc_opcode *opcode;
const struct powerpc_opcode *opcode_end;
unsigned long op;
int dialect;
if (dialect == 0)
dialect = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_COMMON
dialect = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_COMMON
| PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_ALTIVEC;
/* Get the major opcode of the instruction. */

15
arch/powerpc/xmon/xmon.c
View File

@ -154,7 +154,7 @@ static int do_spu_cmd(void);
int xmon_no_auto_backtrace;
extern int print_insn_powerpc(unsigned long, unsigned long, int);
extern int print_insn_powerpc(unsigned long insn, unsigned long memaddr);
extern void xmon_enter(void);
extern void xmon_leave(void);
@ -2068,8 +2068,11 @@ prdump(unsigned long adrs, long ndump)
}
}
typedef int (*instruction_dump_func)(unsigned long inst, unsigned long addr);
int
ppc_inst_dump(unsigned long adr, long count, int praddr)
generic_inst_dump(unsigned long adr, long count, int praddr,
instruction_dump_func dump_func)
{
int nr, dotted;
unsigned long first_adr;
@ -2099,12 +2102,18 @@ ppc_inst_dump(unsigned long adr, long count, int praddr)
if (praddr)
printf(REG" %.8x", adr, inst);
printf("\t");
print_insn_powerpc(inst, adr, 0); /* always returns 4 */
dump_func(inst, adr);
printf("\n");
}
return adr - first_adr;
}
int
ppc_inst_dump(unsigned long adr, long count, int praddr)
{
return generic_inst_dump(adr, count, praddr, print_insn_powerpc);
}
void
print_address(unsigned long addr)
{