[OE-core] [PATCH 01/16] conf/bitbake.conf package.bbclass: fix dbg package not contain sources while -fdebug-prefix-map used
Hongxu Jia
hongxu.jia at windriver.com
Wed Mar 23 01:11:50 UTC 2016
On 03/23/2016 01:01 AM, Mark Hatle wrote:
> On 3/22/16 7:12 AM, Hongxu Jia wrote:
>> Tweak DEBUG_FLAGS to use "/usr/src/debug" as source target path
>> in DWARF. While use gdb to debug binary, it could work with
>> sources in dbg package.
>>
>> While -fdebug-prefix-map is used for compiling, we do not need
>> invoking debugedit to edit DWARF at do_package time, but list
>> where sources files are.
>>
>> The copydebugsources uses the list to copy sources to dbg package.
>> It works whether -fdebug-prefix-map used or not.
>>
>> [YOCTO #9305]
>>
>> Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
>> ---
>> meta/classes/package.bbclass | 31 +++++++++++++++++++++++++------
>> meta/conf/bitbake.conf | 3 +--
>> 2 files changed, 26 insertions(+), 8 deletions(-)
>>
>> diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
>> index ef80e50..478a1d9 100644
>> --- a/meta/classes/package.bbclass
>> +++ b/meta/classes/package.bbclass
>> @@ -300,6 +300,15 @@ def get_conffiles(pkg, d):
>> os.chdir(cwd)
>> return conf_list
>>
>> +def checkbuildpath(file, d):
>> + tmpdir = d.getVar('TMPDIR', True)
>> + with open(file) as f:
>> + file_content = f.read()
>> + if tmpdir in file_content:
>> + return True
>> +
>> + return False
>> +
>> def splitdebuginfo(file, debugfile, debugsrcdir, sourcefile, d):
>> # Function to split a single file into two components, one is the stripped
>> # target system binary, the other contains any debugging information. The
>> @@ -313,7 +322,6 @@ def splitdebuginfo(file, debugfile, debugsrcdir, sourcefile, d):
>> objcopy = d.getVar("OBJCOPY", True)
>> debugedit = d.expand("${STAGING_LIBDIR_NATIVE}/rpm/bin/debugedit")
>> workdir = d.getVar("WORKDIR", True)
>> - workparentdir = d.getVar("DEBUGSRC_OVERRIDE_PATH", True) or os.path.dirname(os.path.dirname(workdir))
>>
>> # We ignore kernel modules, we don't generate debug info files.
>> if file.find("/lib/modules/") != -1 and file.endswith(".ko"):
>> @@ -327,7 +335,7 @@ def splitdebuginfo(file, debugfile, debugsrcdir, sourcefile, d):
>>
>> # We need to extract the debug src information here...
>> if debugsrcdir:
>> - cmd = "'%s' -b '%s' -d '%s' -i -l '%s' '%s'" % (debugedit, workparentdir, debugsrcdir, sourcefile, file)
>> + cmd = "'%s' -i -l '%s' '%s'" % (debugedit, sourcefile, file)
>> (retval, output) = oe.utils.getstatusoutput(cmd)
>> if retval:
>> bb.fatal("debugedit failed with exit code %s (cmd was %s)%s" % (retval, cmd, ":\n%s" % output if output else ""))
>> @@ -363,8 +371,14 @@ def copydebugsources(debugsrcdir, d):
>> objcopy = d.getVar("OBJCOPY", True)
>> debugedit = d.expand("${STAGING_LIBDIR_NATIVE}/rpm/bin/debugedit")
>> workdir = d.getVar("WORKDIR", True)
>> - workparentdir = os.path.dirname(os.path.dirname(workdir))
>> - workbasedir = os.path.basename(os.path.dirname(workdir)) + "/" + os.path.basename(workdir)
>> +
>> + # If build path exists in sourcefile, it means toolchain did not use
>> + # -fdebug-prefix-map to compile
>> + if checkbuildpath(sourcefile, d):
>> + localsrc_word = workdir
>> + else:
>> + localsrc_word = "/usr/src/debug"
>> + localsrc_prefix = localsrc_word + '/'
>>
>> nosuchdir = []
>> basepath = dvar
>> @@ -379,17 +393,22 @@ def copydebugsources(debugsrcdir, d):
>> # We need to ignore files that are not actually ours
>> # we do this by only paying attention to items from this package
>> processdebugsrc += "fgrep -zw '%s' | "
>> + # Remove prefix in the source paths
>> + processdebugsrc += "sed 's#%s##g' | "
>> +
>> processdebugsrc += "(cd '%s' ; cpio -pd0mlL --no-preserve-owner '%s%s' 2>/dev/null)"
>>
>> - cmd = processdebugsrc % (sourcefile, workbasedir, workparentdir, dvar, debugsrcdir)
>> + cmd = processdebugsrc % (sourcefile, localsrc_word, localsrc_prefix, workdir, dvar, debugsrcdir)
>> (retval, output) = oe.utils.getstatusoutput(cmd)
>> +
>> # Can "fail" if internal headers/transient sources are attempted
>> #if retval:
>> # bb.fatal("debug source copy failed with exit code %s (cmd was %s)" % (retval, cmd))
>>
>> # cpio seems to have a bug with -lL together and symbolic links are just copied, not dereferenced.
>> # Work around this by manually finding and copying any symbolic links that made it through.
>> - cmd = "find %s%s -type l -print0 -delete | sed s#%s%s/##g | (cd '%s' ; cpio -pd0mL --no-preserve-owner '%s%s' 2>/dev/null)" % (dvar, debugsrcdir, dvar, debugsrcdir, workparentdir, dvar, debugsrcdir)
>> + cmd = "find %s%s -type l -print0 -delete | sed s#%s%s/##g | (cd '%s' ; cpio -pd0mL --no-preserve-owner '%s%s' 2>/dev/null)" % (dvar, debugsrcdir, dvar, debugsrcdir, workdir, dvar, debugsrcdir)
>> +
>> (retval, output) = oe.utils.getstatusoutput(cmd)
>> if retval:
>> bb.fatal("debugsrc symlink fixup failed with exit code %s (cmd was %s)" % (retval, cmd))
>> diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
>> index 7ed5ffb..838ee81 100644
>> --- a/meta/conf/bitbake.conf
>> +++ b/meta/conf/bitbake.conf
>> @@ -550,8 +550,7 @@ EXTRA_OEMAKE_prepend_task-install = "${PARALLEL_MAKEINST} "
>> # Optimization flags.
>> ##################################################################
>> DEBUG_FLAGS ?= "-g -feliminate-unused-debug-types \
>> - -fdebug-prefix-map=${B}=/usr/src/${BPN} \
>> - -fdebug-prefix-map=${S}=/usr/src/${BPN} \
>> + -fdebug-prefix-map=${WORKDIR}=/usr/src/debug \
> The above is incorrect.
>
> Replacing WORKDIR w/ /usr/src/debug will lead to file collisions. Since a lot
> of 'workdir' directories have a 'build' directory. Any temporary files created
> in the build will now end up in a shared build directory. In addition if there
> are differences between different 'arch' source dirs, the same issue can occur
> causing file conflicts.
>
> In the past the /usr/src/debug location would have been:
>
> /usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}
>
> That ensures that all recipes, even multiple recipes of different versions have
> a uniquely named directory structure. (PN is important vs BPN, as it has the
> remapped 'lib32-' or similar extension to prevent collision.)
Yes, you are right, I thought you should point it out (but not sure).
So I pulled this V1 for discussing, and I will change it as you
suggested in V2.
//Hongxu
> --Mark
>
>> -fdebug-prefix-map=${STAGING_DIR_NATIVE}= \
>> -fdebug-prefix-map=${STAGING_DIR_HOST}= \
>> "
>>
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