File ipxe-efi-Avoid-string-op-warning-with-cross-gcc... of Package qemu

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File ipxe-efi-Avoid-string-op-warning-with-cross-gcc-7-compile.patch of Package qemu (Revision 470174c2ba5a721175401adcf5698576)

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From 16a934b5fc715cd0f213390c88df0b4ec73d85f1 Mon Sep 17 00:00:00 2001
From: Bruce Rogers <brogers@suse.com>
Date: Mon, 25 Feb 2019 15:21:06 -0700
Subject: [PATCH] efi: Avoid string op warning with cross gcc 7 compile

When we started cross compiling using the gcc7 arm compiler, the
a string op warning popped up that isn't addressed by the mechanism
already in place. Add a kludge to address it.

Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 src/util/elf2efi.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/util/elf2efi.c b/src/util/elf2efi.c
index 2c5b9df8..7d1cf03f 100644
--- a/src/util/elf2efi.c
+++ b/src/util/elf2efi.c
@@ -494,7 +494,14 @@ static struct pe_section * process_section ( struct elf_file *elf,
 	memset ( new, 0, sizeof ( *new ) + section_filesz );
 
 	/* Fill in section header details */
-	strncpy ( ( char * ) new->hdr.Name, name, sizeof ( new->hdr.Name ) );
+	/*
+	 * The arm cross gcc 7 compiler warns about string problem here. Avoid
+	 * it by doing operation in two stages
+	 */
+	strncpy ( ( char * ) new->hdr.Name, name, sizeof ( new->hdr.Name ) -1 );
+	if (strlen(name) == sizeof( new->hdr.Name ) -1 ) {
+		*(( char * ) new->hdr.Name + sizeof( new->hdr.Name ) -1) = '\0';
+	}
 	new->hdr.Misc.VirtualSize = section_memsz;
 	new->hdr.VirtualAddress = shdr->sh_addr;
 	new->hdr.SizeOfRawData = section_filesz;
-- 
2.20.1

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File ipxe-efi-Avoid-string-op-warning-with-cross-gcc-7-compile.patch of Package qemu (Revision 470174c2ba5a721175401adcf5698576)

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