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[PULL v2 15/15] hw/core: Only build guest-loader if libfdt is available


From: Alex Bennée
Subject: [PULL v2 15/15] hw/core: Only build guest-loader if libfdt is available
Date: Wed, 17 Mar 2021 07:22:16 +0000

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Add a Kconfig entry for guest-loader so we can optionally deselect
it (default is built in), and add a Meson dependency on libfdt.

This fixes when building with --disable-fdt:

  /usr/bin/ld: libcommon.fa.p/hw_core_guest-loader.c.o: in function 
`loader_insert_platform_data':
  hw/core/guest-loader.c:56: undefined reference to `qemu_fdt_add_subnode'
  /usr/bin/ld: hw/core/guest-loader.c:57: undefined reference to 
`qemu_fdt_setprop'
  /usr/bin/ld: hw/core/guest-loader.c:61: undefined reference to 
`qemu_fdt_setprop_string_array'
  /usr/bin/ld: hw/core/guest-loader.c:68: undefined reference to 
`qemu_fdt_setprop_string'
  /usr/bin/ld: hw/core/guest-loader.c:74: undefined reference to 
`qemu_fdt_setprop_string_array'
  collect2: error: ld returned 1 exit status

Fixes: a33ff6d2c6b ("hw/core: implement a guest-loader to support static 
hypervisor guests")
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210315170439.2868903-1-philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

diff --git a/hw/core/Kconfig b/hw/core/Kconfig
index fdf03514d7..9397503656 100644
--- a/hw/core/Kconfig
+++ b/hw/core/Kconfig
@@ -11,6 +11,11 @@ config GENERIC_LOADER
     bool
     default y
 
+config GUEST_LOADER
+    bool
+    default y
+    depends on TCG
+
 config OR_IRQ
     bool
 
diff --git a/hw/core/meson.build b/hw/core/meson.build
index 9cd72edf51..59f1605bb0 100644
--- a/hw/core/meson.build
+++ b/hw/core/meson.build
@@ -16,6 +16,7 @@ hwcore_files = files(
 common_ss.add(files('cpu.c'))
 common_ss.add(when: 'CONFIG_FITLOADER', if_true: files('loader-fit.c'))
 common_ss.add(when: 'CONFIG_GENERIC_LOADER', if_true: 
files('generic-loader.c'))
+common_ss.add(when: ['CONFIG_GUEST_LOADER', fdt], if_true: 
files('guest-loader.c'))
 common_ss.add(when: 'CONFIG_OR_IRQ', if_true: files('or-irq.c'))
 common_ss.add(when: 'CONFIG_PLATFORM_BUS', if_true: files('platform-bus.c'))
 common_ss.add(when: 'CONFIG_PTIMER', if_true: files('ptimer.c'))
@@ -37,8 +38,6 @@ softmmu_ss.add(files(
   'clock-vmstate.c',
 ))
 
-softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('guest-loader.c'))
-
 specific_ss.add(when: 'CONFIG_SOFTMMU', if_true: files(
   'machine-qmp-cmds.c',
   'numa.c',
-- 
2.20.1




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