[oe-commits] [openembedded-core] 15/28: site: set getcwd() behaviour for long paths for glibc / musl

[git at git.openembedded.org]

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit 5f3075677b99d2e0ee619934ee8f58fb2717442c
Author: André Draszik <git at andred.net>
AuthorDate: Fri Jan 10 16:52:53 2020 +0000

    site: set getcwd() behaviour for long paths for glibc / musl
    
    In glibc, getcwd() handles long file names properly, on
    musl, getcwd() only works up to PATH_MAX directory depths.
    
    Configuring the autotools (gnulib) test result here allows
    coreutils to compile more optimised code for both platforms,
    rather than being pessimistic and re-implementing everything
    itself.
    
    The difference in behaviour is because both do the kernel
    getcwd syscall (which only supports up to PATH_MAX), but
    glibc implements fallbacks for longer paths, while musl
    doesn't.
    
    Signed-off-by: André Draszik <git at andred.net>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/site/common-glibc | 1 +
 meta/site/common-musl  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/meta/site/common-glibc b/meta/site/common-glibc
index e5085f5..1f6175b 100644
--- a/meta/site/common-glibc
+++ b/meta/site/common-glibc
@@ -30,6 +30,7 @@ ac_cv_func_mmap_fixed_mapped=${ac_cv_func_mmap_fixed_mapped=yes}
 # coreutils
 fu_cv_sys_stat_statfs2_bsize=${fu_cv_sys_stat_statfs2_bsize=yes}
 gl_cv_func_getcwd_null=${gl_cv_func_getcwd_null=yes}
+gl_cv_func_getcwd_path_max=${gl_cv_func_getcwd_path_max=yes}
 gl_cv_func_working_mkstemp=${gl_cv_func_working_mkstemp=yes}
 
 # glib
diff --git a/meta/site/common-musl b/meta/site/common-musl
index 0c9d21e..c811375 100644
--- a/meta/site/common-musl
+++ b/meta/site/common-musl
@@ -35,6 +35,7 @@ bash_cv_sys_siglist=${bash_cv_sys_siglist=no}
 # coreutils
 fu_cv_sys_stat_statfs2_bsize=${fu_cv_sys_stat_statfs2_bsize=yes}
 gl_cv_func_getcwd_null=${gl_cv_func_getcwd_null=yes}
+gl_cv_func_getcwd_path_max=${gl_cv_func_getcwd_path_max='no, but it is partly working'}
 gl_cv_func_gettimeofday_clobber=${gl_cv_func_gettimeofday_clobber=no}
 gl_cv_func_tzset_clobber=${gl_cv_func_tzset_clobber=no}
 gl_cv_func_gettimeofday_posix_signature=${gl_cv_func_gettimeofday_posix_signature=yes}

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