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charset="utf-8" Increase the number of Microblaze registers QEMU will report when talking to GDB. Signed-off-by: Joe Komlodi --- target/microblaze/cpu.c | 2 +- target/microblaze/gdbstub.c | 52 +++++++++++++++++++++++++++++++++++++++++= +--- 2 files changed, 50 insertions(+), 4 deletions(-) diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index 41cac1b..5b6ad5b 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -331,7 +331,7 @@ static void mb_cpu_class_init(ObjectClass *oc, void *da= ta) #endif dc->vmsd =3D &vmstate_mb_cpu; device_class_set_props(dc, mb_properties); - cc->gdb_num_core_regs =3D 32 + 5; + cc->gdb_num_core_regs =3D 32 + 27; cc->gdb_get_dynamic_xml =3D mb_gdb_get_dynamic_xml; cc->gdb_core_xml_file =3D "microblaze-core.xml"; =20 diff --git a/target/microblaze/gdbstub.c b/target/microblaze/gdbstub.c index cdca434..af29f00 100644 --- a/target/microblaze/gdbstub.c +++ b/target/microblaze/gdbstub.c @@ -26,12 +26,37 @@ int mb_cpu_gdb_read_register(CPUState *cs, GByteArray *= mem_buf, int n) MicroBlazeCPU *cpu =3D MICROBLAZE_CPU(cs); CPUMBState *env =3D &cpu->env; =20 + /* + * GDB expects registers to be reported in this order: + * R0-R31 + * PC-BTR + * PVR0-PVR11 + * EDR-TLBHI + * SLR-SHR + */ if (n < 32) { return gdb_get_reg32(mem_buf, env->regs[n]); } else { - return gdb_get_reg32(mem_buf, env->sregs[n - 32]); + n -=3D 32; + switch (n) { + case 0 ... 5: + return gdb_get_reg32(mem_buf, env->sregs[n]); + /* PVR12 is intentionally skipped */ + case 6 ... 17: + n -=3D 6; + return gdb_get_reg32(mem_buf, env->pvr.regs[n]); + case 18 ... 24: + /* Add an offset of 6 to resume where we left off with SRegs */ + n =3D n - 18 + 6; + return gdb_get_reg32(mem_buf, env->sregs[n]); + case 25: + return gdb_get_reg32(mem_buf, env->slr); + case 26: + return gdb_get_reg32(mem_buf, env->shr); + default: + return 0; + } } - return 0; } =20 int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) @@ -50,7 +75,28 @@ int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem= _buf, int n) if (n < 32) { env->regs[n] =3D tmp; } else { - env->sregs[n - 32] =3D tmp; + n -=3D 32; + switch (n) { + case 0 ... 5: + env->sregs[n] =3D tmp; + break; + /* PVR12 is intentionally skipped */ + case 6 ... 17: + n -=3D 6; + env->pvr.regs[n] =3D tmp; + break; + case 18 ... 24: + /* Add an offset of 6 to resume where we left off with SRegs */ + n =3D n - 18 + 6; + env->sregs[n] =3D tmp; + break; + case 25: + env->slr =3D tmp; + break; + case 26: + env->shr =3D tmp; + break; + } } return 4; } --=20 2.7.4