I've rebased the code to the up-to-date master branch, and pushed to:
git://git.pokylinux.org/poky-contrib robert/tmpdir http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=robert/tmpdir // Robert On 05/08/2012 10:50 AM, Robert Yang wrote:
When the length of TMPDIR is longer than a threshold, there would be an "Argument list too long" error when building gcc-cross, this is the error from the exec(), the maximum length of argument is defined in /usr/include/linux/limits.h: #define ARG_MAX 131072 /* # bytes of args + environ for exec() */ It's hard to determine the threshold of the TMPDIR, here is the experimental value: len(TMPDIR) = 182 Success len(TMPDIR) = 192 Failed So set the maximum length of TMPDIR to 180 seems proper. [YOCTO #2434] Signed-off-by: Robert Yang<[email protected]> --- meta/classes/sanity.bbclass | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass index 687ddeb..6aaac1e 100644 --- a/meta/classes/sanity.bbclass +++ b/meta/classes/sanity.bbclass @@ -30,6 +30,7 @@ def check_sanity_sstate_dir_change(sstate_dir, data): testmsg = "" if sstate_dir != "": testmsg = check_create_long_filename(sstate_dir, "SSTATE_DIR") + return testmsg def check_sanity_tmpdir_change(tmpdir, data): @@ -83,6 +84,12 @@ def check_create_long_filename(filepath, pathname): return "Failed to create a file in %s: %s" % (pathname, strerror) return "" +def check_long_path(filepath, pathname): + # The 180 is just an empirical value + if len(filepath)> 180: + return "The path length of %s is too long, this would cause the \"Argument list too long\" error, please use a shorter path.\n" % pathname + return "" + def check_connectivity(d): # URI's to check can be set in the CONNECTIVITY_CHECK_URIS variable # using the same syntax as for SRC_URI. If the variable is not set @@ -353,6 +360,10 @@ def check_sanity(e): tmpdir = data.getVar('TMPDIR', e.data, True) sstate_dir = data.getVar('SSTATE_DIR', e.data, True) + # Check whether the length of TMPDIR is too long to cause the + # argument list too long error + messages = messages + check_long_path(tmpdir, "TMPDIR") + # Check saved sanity info last_sanity_version = 0 last_tmpdir = ""
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