51 lines
2.0 KiB
Diff
51 lines
2.0 KiB
Diff
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Subject: [PATCH] [FEAT VS1804] lib/zt_common: add STATIC_ASSERT macro
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From: Marc Hartmayer <mhartmay@linux.ibm.com>
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Summary: genprotimg: Introduce new tool for the creation of PV images
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Description: genprotimg takes a kernel, host-key documents, optionally an
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initrd, optionally a file with the kernel command line, and it
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generates a single, loadable image file. The image consists of a
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concatenation of a plain text boot loader, the encrypted
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components for kernel, initrd, and cmdline, and the
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integrity-protected PV header, containing metadata necessary for
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running the guest in PV mode. It's possible to use this image file
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as a kernel for zIPL or for a direct kernel boot using QEMU.
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Upstream-ID: bac3f93772bdf8618c2c9677c59569d70e4a39c0
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Problem-ID: VS1804
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Upstream-Description:
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lib/zt_common: add STATIC_ASSERT macro
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Add `STATIC_ASSERT` macro that uses `_Static_assert` if available (was
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introduced with gcc 4.6, see https://gcc.gnu.org/wiki/C11Status). For
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example, this could be used for the verification of structure sizes at
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compile time.
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Acked-by: Jan Höppner <hoeppner@linux.ibm.com>
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Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
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Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
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---
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include/lib/zt_common.h | 7 +++++++
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1 file changed, 7 insertions(+)
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--- a/include/lib/zt_common.h
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+++ b/include/lib/zt_common.h
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@@ -22,6 +22,13 @@
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# define UNUSED(x) x
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#endif
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+#ifdef STATIC_ASSERT
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+#elif defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ >= 5)
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+# define STATIC_ASSERT(test) _Static_assert((test), "(" #test ") failed");
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+#else
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+# define STATIC_ASSERT(test)
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+#endif
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+
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#define RELEASE_STRING STRINGIFY (S390_TOOLS_RELEASE)
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#define TOOLS_LIBDIR STRINGIFY (S390_TOOLS_LIBDIR)
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#define TOOLS_SYSCONFDIR STRINGIFY (S390_TOOLS_SYSCONFDIR)
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