diff options
| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2019-04-27 16:40:24 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-05-17 15:19:24 +0200 |
| commit | 81c48dd79655296f5bf94823e8ac95902a8ac3e4 (patch) | |
| tree | 0f90cb8335d6468d7da9bb64fb17d915f29fbfb6 /hw/i386 | |
| parent | f5e0a8f42fbc5c7c2b8c0720ee657aba6cc122fd (diff) | |
hw/i386/acpi: Add object_resolve_type_unambiguous to improve modularity
When building with CONFIG_Q35=n, we get:
LINK x86_64-softmmu/qemu-system-x86_64
/usr/bin/ld: hw/i386/acpi-build.o: in function `acpi_get_misc_info':
/source/qemu/hw/i386/acpi-build.c:243: undefined reference to `ich9_lpc_find'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:204: qemu-system-x86_64] Error 1
This is due to a dependency in acpi-build.c on the ICH9_LPC
(via ich9_lpc_find) and PIIX4_PM (via piix4_pm_find) devices.
To allow better modularity (compile acpi-build.c with only
Q35/ICH9 or ISAPC/PIIX4), refactor the similar helper as
object_resolve_type_unambiguous(). This way we relax the
linker dependencies and can build the x86 targets with a
selection of machines (instead of all of them).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190427144025.22880-3-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386')
| -rw-r--r-- | hw/i386/acpi-build.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 416da318ae..123ff2b816 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -35,6 +35,7 @@ #include "hw/acpi/acpi-defs.h" #include "hw/acpi/acpi.h" #include "hw/acpi/cpu.h" +#include "hw/acpi/piix4.h" #include "hw/nvram/fw_cfg.h" #include "hw/acpi/bios-linker-loader.h" #include "hw/loader.h" @@ -164,10 +165,21 @@ static void init_common_fadt_data(Object *o, AcpiFadtData *data) *data = fadt; } +static Object *object_resolve_type_unambiguous(const char *typename) +{ + bool ambig; + Object *o = object_resolve_path_type("", typename, &ambig); + + if (ambig || !o) { + return NULL; + } + return o; +} + static void acpi_get_pm_info(AcpiPmInfo *pm) { - Object *piix = piix4_pm_find(); - Object *lpc = ich9_lpc_find(); + Object *piix = object_resolve_type_unambiguous(TYPE_PIIX4_PM); + Object *lpc = object_resolve_type_unambiguous(TYPE_ICH9_LPC_DEVICE); Object *obj = piix ? piix : lpc; QObject *o; pm->cpu_hp_io_base = 0; @@ -228,8 +240,8 @@ static void acpi_get_pm_info(AcpiPmInfo *pm) static void acpi_get_misc_info(AcpiMiscInfo *info) { - Object *piix = piix4_pm_find(); - Object *lpc = ich9_lpc_find(); + Object *piix = object_resolve_type_unambiguous(TYPE_PIIX4_PM); + Object *lpc = object_resolve_type_unambiguous(TYPE_ICH9_LPC_DEVICE); assert(!!piix != !!lpc); if (piix) { |