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package.bbclass: only one hardlink of separated debug info file in each directory

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While multiple hardlinks of binary located in different dirs,
there are also multiple hardlinks of separated debug info file
with the same binary name in same debug dirs. But in each dir,
only one debug file with original name works. Because all of
binary hardlinks have one `.gnu_debuglink' which is added in
`splitdebuginfo'. It caused gdb could not find debugging
symbols.

[Before the patch]
$ find .
./usr/bin/foo
./usr/bin/foo-hd1
./usr/bin/.debug
./usr/bin/.debug/foo
./usr/bin/.debug/foo-hd1
./usr/libexec/foo-hd2
./usr/libexec/.debug
./usr/libexec/.debug/foo-hd2

$ readelf --debug-dump usr/libexec/foo-hd2
Contents of the .gnu_debuglink section:
  Separate debug info file: foo

$ gdb usr/libexec/foo-hd2
Reading symbols from usr/libexec/foo-hd2...(no debugging symbols found)...done.
[Before the patch]

[Apply the patch]
$ find .
./usr/bin/foo
./usr/bin/foo-hd1
./usr/bin/.debug
./usr/bin/.debug/foo
./usr/libexec/foo-hd2
./usr/libexec/.debug
./usr/libexec/.debug/foo

$ gdb usr/libexec/foo-hd2
Reading symbols from usr/libexec/foo-hd2...Reading symbols from usr/libexec/.debug/foo...done.
[Apply the patch]

(From OE-Core rev: d4eaf42f7708f8d3a31a04d958bd7420dd7dd6b9)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Hongxu Jia
2018-08-24 15:00:31 +08:00
committed by Richard Purdie
parent 87d3a9685d
commit c0abc412bc
1 changed files with 7 additions and 4 deletions
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11
meta/classes/package.bbclass
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@@ -1043,15 +1043,18 @@ python split_and_strip_files () {
for ref in inodes:
if len(inodes[ref]) == 1:
continue
target = inodes[ref][0][len(dvar):]
for file in inodes[ref][1:]:
src = file[len(dvar):]
dest = debuglibdir + os.path.dirname(src) + debugdir + "/" + os.path.basename(src) + debugappend
dest = debuglibdir + os.path.dirname(src) + debugdir + "/" + os.path.basename(target) + debugappend
fpath = dvar + dest
target = inodes[ref][0][len(dvar):]
ftarget = dvar + debuglibdir + os.path.dirname(target) + debugdir + "/" + os.path.basename(target) + debugappend
bb.utils.mkdirhier(os.path.dirname(fpath))
#bb.note("Link %s -> %s" % (fpath, ftarget))
os.link(ftarget, fpath)
# Only one hardlink of separated debug info file in each directory
if not os.access(fpath, os.R_OK):
#bb.note("Link %s -> %s" % (fpath, ftarget))
os.link(ftarget, fpath)
# Create symlinks for all cases we were able to split symbols
for file in symlinks: