File dd_rescue-md5-unaligned-armv7.diff of Package dd_rescue

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File dd_rescue-md5-unaligned-armv7.diff of Package dd_rescue (Revision 05c0a48b1c456d9ca60244e8021961da)

Currently displaying revision 05c0a48b1c456d9ca60244e8021961da , Show latest

commit 19da344403f9d340d7343e99df6ec3e4b79684d9
Author: Kurt Garloff <kurt@garloff.de>
Date:   Sun Mar 3 21:53:21 2024 +0100

Trouble is that we don't detect that ARMv7 requires extra buffering
    is md5 input is not properly aligned. gcc-12 apparently is clever enough
    to handle unlaigned memory access for us, which makes us succeed in the
    testcase. It's not clever enough to also succeed in md5_64() :-O
    
    Signed-off-by: Kurt Garloff <kurt@garloff.de>

diff --git a/configure.ac b/configure.ac
index d99387c..7a7dccf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -60,7 +60,7 @@ AC_RUN_IFELSE([AC_LANG_SOURCE([[
 	AC_DEFINE_UNQUOTED([HAVE_REP_NOP], 1,
 		[check whether asm rep nop works])
 ],[
-	AC_MSG_RESULT(yes)
+	AC_MSG_RESULT(no)
 ],[
 	AC_MSG_RESULT(no -- cross compiling)
 ])
@@ -79,7 +79,7 @@ AC_RUN_IFELSE([AC_LANG_SOURCE([[
 	AC_DEFINE_UNQUOTED([HAVE_LFENCE], 1,
 		[check whether asm lfence works])
 ],[
-	AC_MSG_RESULT(yes)
+	AC_MSG_RESULT(no)
 ],[
 	AC_MSG_RESULT(no -- cross compiling)
 ])
@@ -171,6 +171,10 @@ AC_RUN_IFELSE([AC_LANG_SOURCE([[
 	 fprintf(stderr, "Debug: Off %i, Ptr %08lx\n", off, (unsigned long)ptr);
 	 copy((int*)b2, (const int*)ptr, 4);
 	 fprintf(stderr, "Ints: %08x %08x %08x %08x\n", *(int*)b2, *(int*)(b2+4), *(int*)(b2+8), *(int*)(b2+12));
+	 /* HACK: Somehow this test does no longer trigger with gcc-12 on armhf, but it should */
+	 #ifdef __arm__
+	 return 1;
+	 #endif
 	 return 0;
 	}
 ]])],[

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File dd_rescue-md5-unaligned-armv7.diff of Package dd_rescue (Revision 05c0a48b1c456d9ca60244e8021961da)

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