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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1813307
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloademulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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+util/path.c/follow_path() does not handle "/" well
+
+Hello,
+
+I noticed that qemu does not handle "/" very well in follow_path().
+
+Specifically, I was trying to run gdbserver under qemu, and it failed inside its implementation of __getcwd.
+
+Indeed it does something like
+  if (__lstat ("/", &st) < 0)
+.....
+and then loops from current dir toward the top using lstat("..")
+
+On qemu side, lstat forwards the request to follow_path() in util/path.c, and when passed "/", it returns the path in QEMU_LD_PREFIX (which was the top of my sysroot).
+OTHT, the series of lstat("..") finally reaches the real device root because it's not recognized as "/" in follow_path(), so this is inconsistent and __getcwd fails.
+
+I suppose there's a good reason for returning QEMU_LD_PREFIX when asking for "/", but why is it so?
+
+If there's no good reason, maybe the behaviour could be changed to map "/" to "/" ?
+
+Thanks
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