[Xen-devel] [PATCH v3 11/19] tools/hvmloader: link errno.h from xen internal

[Wei Liu <wei.liu2@xxxxxxxxxx>]

From: Tiejun Chen <tiejun.chen@xxxxxxxxx>

We need to act on some specific hypercall error numbers, so
require the hypervisor view on the errno.h value rather than
just the build environment's number. So here link this headfile
from xen.

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxx>
---
 .gitignore                        |    1 +
 tools/firmware/hvmloader/Makefile |    7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 8c8c06f..30b90f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -127,6 +127,7 @@ tools/firmware/hvmloader/acpi/ssdt_*.h
 tools/firmware/hvmloader/hvmloader
 tools/firmware/hvmloader/roms.h
 tools/firmware/hvmloader/roms.inc
+tools/firmware/hvmloader/errno.h
 tools/firmware/rombios/BIOS-bochs-[^/]*
 tools/firmware/rombios/_rombios[^/]*_.c
 tools/firmware/rombios/rombios[^/]*.s
diff --git a/tools/firmware/hvmloader/Makefile 
b/tools/firmware/hvmloader/Makefile
index 46a79c5..ef2337b 100644
--- a/tools/firmware/hvmloader/Makefile
+++ b/tools/firmware/hvmloader/Makefile
@@ -87,6 +87,11 @@ endif
 all: subdirs-all
        $(MAKE) hvmloader
 
+subdirs-all: errno.h
+
+errno.h:
+       ln -sf $(XEN_ROOT)/xen/include/xen/errno.h .
+
 ovmf.o rombios.o seabios.o hvmloader.o: roms.inc
 smbios.o: CFLAGS += -D__SMBIOS_DATE__="\"$(shell date +%m/%d/%Y)\""
 
@@ -136,7 +141,7 @@ endif
 
 .PHONY: clean
 clean: subdirs-clean
-       rm -f roms.inc roms.inc.new acpi.h
+       rm -f roms.inc roms.inc.new acpi.h errno.h
        rm -f hvmloader hvmloader.tmp *.o $(DEPS)
 
 -include $(DEPS)
-- 
1.7.10.4


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