[Xen-devel] 4.9.0-rcX can not be built for ARM64

[Andrii Anisov <andrii_anisov@xxxxxxxx>]

Dear All,


During the XEN 4.9.0-rc4 testing on Renesas R-Car Gen3 platform I faced 
a bug at compilation step.
Again, the libxl_arm_acpi.c can not be built:


| In file included from libxl_arm.h:17:0,
|                  from libxl_arm_acpi.c:19:
| libxl_arm_acpi.c: In function 'libxl__get_acpi_size':
| libxl_internal.h:129:44: error: 'size' may be used uninitialized in 
this function [-Werror=maybe-uninitialized]
|      (((unsigned long)(_val)+(1UL<<(_order))-1) & ~((1UL<<(_order))-1))
|                                             ^
| libxl_arm_acpi.c:101:14: note: 'size' was declared here
|      uint64_t size;
|               ^
| libxl_arm_acpi.c: In function 'libxl__prepare_acpi':
| libxl_arm_acpi.c:152:33: error: 'size' may be used uninitialized in 
this function [-Werror=maybe-uninitialized]
|      dom->acpi_modules[0].length += ROUNDUP(acpitables[MADT].size, 3);
|                                  ^
| libxl_arm_acpi.c:126:12: note: 'size' was declared here
|      size_t size;
|             ^


Please see the full log attached.

The build environment is issued by Yocto Krogoth (krogoth-15.0.2).

The toolchain used is "aarch64-poky-linux-c++ (Linaro GCC 5.2-2015.11-2) 
5.2.1 20151005"

--

*Andrii Anisov*

Attachment: log.do_compile.18593
Description: Text document

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