supporting DW_OP_{implicit,stack}_value
by Mark Wielaard
Hi,
Since the gcc vta branch now emits the new (Dwarf 4) DW_OP_stack_value
and DW_OP_implicit_value operands I looked into supporting them. This is
a little bit difficult since, especially DW_OP_implicit_value changes
some assumptions (at least some of mine).
Unlike what the current comment in dwarf.h says the value block of
DW_OP_implicit_value isn't carried in a DW_FORM, but uses the "raw
memory encoding of the target". At least that is what gcc seems to emit,
and reading the spec, that does seem what was meant to happen. This is
somewhat awkward since it means we don't have the context to interpret
the value at this point. You could see what points to the location
description and see what the type should be, but that might not always
be simple, so you have to depend on the caller knowing what to do with
the "raw memory encoding".
2009-07-19 Mark Wielaard <mjw(a)redhat.com>
* dwarf.h: Correct description of DW_OP_implicit_value encoding.
Making readelf support them isn't too hard. For DW_OP_stack_value it is
simply listing the new opcode. For DW_OP_implicit_value it means just
reading the length and the (non-encoded) value. The only difficult is
whether or not the try to print the value in a decoded form when the
length is known. My patch prints it decoded when it is [1,] 2, 4 or 8
bytes since it is most likely to be a value of a basic type, otherwise
it just dumps it as a hex bytes as is.
2009-07-19 Mark Wielaard <mjw(a)redhat.com>
* readelf.c (print_ops): Add handling of DW_OP_implicit_value
and DW_OP_stack_value.
Then we come to libdw getlocation() and things get a bit harder. Again
DW_OP_stack_value isn't much trouble. It doesn't have any operands, so
just return it as is when interning. But DW_OP_implicit_value is a bit
of an issue, since we don't know the actual value (no DW_FORM, just raw
bytes), there is no convenient way to store it. Also it can be of
arbitrary length, and all we have are two Dwarf_Words. In theory we
could just pass the length and the offset (already there in the
Dwarf_Op) into the Dwarf_Block. But there are two issues with this.
First, the offset is to the start of the DW_OP and there is no
convenient way I know of for the caller to get the size of the length
encoding, so it is hard to determine the actual offset (we could store
the extra offset/length-size in the number2 Dwarf_Word though).
Secondly I don't actually understand how the caller would get a handle
to the Dwarf_Block the offset refers to. For dwarf_getlocation() it
would be easy, just call dwarf_formblock() on the Dwarf_Attribute. But
for dwarf_getlocation_addr() the caller would have to parse the location
list themselves and hope they do it in the same order/preference that
dwarf_getlocation_addr() does it. Or am I missing some simple method to
get at the Dwarf_Block that the Dwarf_Op array that
dwarf_getlocation_addr() returns refer to?
So for now I just store the length as number and the actual address into
the Dwarf_Block data where the raw memory representation starts into
number2. But this feels a bit like cheating, since it isn't really
interning the DW_OP data since it depends on having the pointer into the
data around.
2009-07-20 Mark Wielaard <mjw(a)redhat.com>
* dwarf_getlocation.c (__libdw_intern_expression): Handle
DW_OP_stack_value and DW_OP_implicit_value.
Cheers,
Mark
14 years
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14 years, 2 months
gettext instead of nl_langinfo in readelf
by Petr Machata
Hi,
pmachata/pending has a patchlet that replaces the use of nl_langinfo in
formatting of DW_FORM_flag with gettext. nl_langinfo gives me empty
string for YESSTR and NOSTR values, which indicates invalid values (per
man page). readelf already uses gettext to format yes/no in case of
has_children in print_debug_abbrev_section, so that seems to be the way
to go.
Please consider merging into master.
PM
14 years, 2 months
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[ALERT]: It's the time to come out on streets and stop the complete nation on it's place - Take immediate actions at once with full force.
by Kalpesh Sharma
Respected Friends,
It's my pleasure to get in touch with you. This email is about security and future safety of your family, your child, your wife, your friends and relatives. It has become very necessary to take action now and get united else there will be no one behind you to take care of your family, if any thing happens to you in future, due to the Islamic Terrorism Related Activities that are spreading all over the world with millions and millions of terrorists joining these islamic terrorism related organizations. 1/4th of the population of earth contains members who are working with thousands and thousands of Islamic Organizations to help them to spread terrorism. If we all are not united today then the day is not far when they all are going to over ride all of us and our childrens. So, better take action now to secure your and your children and family future.
If you don't fight for your freedom today then there will be no one on the earth,
to fight for the freedom of your children in future,
from the corrupt politicians, from the terrorism and from the criminals.
We all can together fight together against terrorism, against crime, against corrupt political peoples,
Only when we decide to remain united by forgetting the religious boundaries and the national boundaries.
This is a step which I am trying for human safety, future and security.
Come and join us as soon as you can, before it's too late.
Agar Aaj Aap Apne Ghar Mein Chup-Chaap Baithe Rahoge,
Toh Phir Kal Aapke Baccho Ko Help Karne Wala Koi Nahin Hoga.
Aisi Paristhiti Paida Ho, Isse Pehle Is United and Peaceful Organization Ka,
Saath Do Aur Immediately Jyada Soche Bina Join Karo,
Isi Mein Hum Sab Ki Bhalai Hai, Aur Agar Aapko Meri Baatein Bakwaas Lagti Hai,
Toh Phir Mein Faisla Aap Par Chodta Hoon, Kya Karna Chahoge,
Aane Wali Barbaadi Ka Intzaar Ya Phir Usse Makabla Karne Ki Tyaari?
Freedom of Rights Ke Tahat Faisla Aapka Hai.
I am running this campaign with a pure intention of unity amongst every citizen of every country so that in future we have the capacity and are able to face terrorism troubles. Millions and millions of people across the globe are today members of our organizations and I want to increase it more globally. No charge for joining this organization who has millions of members to help for your safety and security anytime, anywhere whenever you need help. No limits or restrictions of boundaries, caste, creed, religion because out organization's ultimate goal is peace and unity across the world. This is an email related to many issues, which are a part of your freedom and democratic rights.
Before proceeding further, let me tell you something about me and give my introduction as well. The AIM is to work in co-operation, co-ordination and compromise with all of you regardless of whatsoever party or organization you belong. You are my and I am your - This is the philosophy I follow to create genuine long term relationship with everyone. If we all help each other together in co-operation, compromise and co-ordination with each other then we all will win our games. But seperately it's difficult task for all of us, which I hope all of you accept. Unity power is what I am trying to create through a genuine relationship with you. Anyone who wants to work in collabration with me under mutual understand which you think can be of great benefits for both sides then kindly do not hesitate to get in touch with me. I perform those tasks which no one can dare to perform. I like to do exclusive and unique things. I personally guarantee you for the best of the best once we start working together under co-operation and compromise with each other. Trust is a must for all the things. Even if you have any business related queries then feel free to get in touch with me. What I can do and what is my expertise is mentioned below in my digital signatures. I have the capacity to work 20 hours daily and can alone do work equivalent to 100000 persons. I have the capacity of non-stop work for 36-48 hours without sleep. I have experience in several industry sectors and can do most exclusive and unique things whether whatsoever is the level of competition.
My introduction: I am an Information Security Expert with world records in hacking world's maximum websites live on air in a 3 hour non stop telecast with Honorable Rajat Sharma(Chairman, IndiaTV) in the presence of state minister of technology, technical experts, legal expert, stock exchange experts, corporate bodies, star media personnels and millions of public in a hot debate where I was alone to answer and there were so many peoples on other hand and we did the show with huge success. We did it for national interest and public interest. So, it was not considered as crime/offence because every country has a law that any action taken for the safety of public, citizen, national interest or with an intention to do something good for a large number of population, is not a crime. Then I worked for Honorable Chief Minister of Gujarat through a direct appointment from Mr. Narendra Modi without interference of any PA or IAS cadre officers or any other private level officers. He directly called me and communicated face to face, realized my capacity and immediately appointed me for a short term contract. So, in my eyes he is a great person because I have only seen such things in films and dramas till date, never in true life. But in India, Honorable Narendra Modiji was the first person whom I saw, who though having no relationship, not even knowing me and though I was a simple common man called me to meet face to face, gave me respect and then immediately gave me honour of work. Do you think this is a small contribution? When Narendra Modi won the 2007 state election in Gujarat, the media focused on Hindu-Muslim issues. But the truth about secret of Modis success lay in agriculture, an area completely neglected by political analysts. Between 2000-01 and 2007-08 agricultural value added grew at a phenomenal 9.6% per year (despite a major drought in 2002). This is more than double Indias agricultural growth rate, and much faster than Punjabs farm growth in the green revolution heyday. Indeed, 9.6% agricultural growth is among the fastest rates recorded anywhere in the world. During the 2007 election campaign, the Congress slogan was chak de, chak de Gujarat. I heard Modi say at a rally that his reply was check dam, check dam Gujarat. But subsequently, under Modi, Gujarat has built ten times as many check dams! He could well say chak de, check dam. Tell me about one such person which can be compared in politics with Honorable Modiji. He is my national hero, that's all I know if anyone asks me anything about a great political person. Similarly when I was a new person in my career field, at that time the Government was under control of BJP. At that time I got in touch with Honorable Prime Minister Vajpayeeji and Honorable President Abdul Kalaamji. The officers at that time immediately instantly gave me an appointment on reading my letter which had information about my expertise. I got the point, that they are those great personalities who want to truely without using publicity stunt want to help such talented people grow. This is true national bhakti in my view. I never even thought in my life as a common middle class person that I will get a chance to visit the so secured Rashtrapati Bhavan and their officers of concerned authorized departments. So, these are the true people whom I met when I decided to join the BJP, VHP, RSS and the Sangh Pariwaar. Here is when my mind started thinking that when these three persons on so higher designations are doing so much for a common middle class person who is totally unknown to them, then why even myself not start helping my nation? Today they are helping me, may be tomorrow due to my help someone can too decide to work for nation. In this way I committed to work for national interest by joing these parties. After the government of congress that was formed after Vajpayeeji, I several times mailed to PMO and Rashtrapati Bhavan several and several of letters of which I have all the copies to show my expertise, achievements and awards and asked them to give me some opportunities to work for nation. But they never never replied in their five years period till date. Recently I sent so many emails about key research on terrorism, no one cared at all. I have no data, no reply, no communications from anyone at all from Home Ministry after the Congress Government came into existence. So, this is where the true difference comes into existence and reality comes out, truth is seen and this when we know whom to trust and whom not. Then I worked for Army Intelligence also and the Leutinent Collonel used to come to my home as and when they felt my need to counterterrorism. I am also a technical intelligence expert and keep monitoring the terrorist activities and communications that take place on internet. From last three days also I am continously in touch with IB agencies and Home Ministry of India to give them news on terrorist activities. This is all about my work which I do as a freelancer. Today I have a global brand name and a huge reputation and relationship with millions of Indian Citizens. You may find me anywhere on internet with around 100000 or more results just about me. So, this is all about me. Just go through my Digital Signatures and you will know all about my further details and work, etc.
Coming to point, I am here to inform all of you that take immediate actions on these issues are required for national interest and I need all the citizens of country to workout with unity on following issues because we all of us have been cheated in these elections of 2009. For explanation check these links and you will know the truth: EVM Tempering - Proved LIVE ON AIR on Sahara Samay and http://www.youtube.com/watch?v=EdretTflWEw
Explanation on VHP/RSS/BJP/Sangh Parivar V/S Media V/S Misunderstandings About Sangh Parivar and it's related organizations: It's the time to come out on streets and stop India on it's place - Take immediate actions with full force for the cheating that has been done with you in the recent elections 2009. Millions of VHP members, millions of RSS members, millions of BJP members, millions of other party members are all together united now and I want to inform you that for your security and safety so many people will be there on streets. No one can dare to even touch you. Support this campaign led by millions of Indian citizens for the recent election cheating and frauds that were done with your voting rights this time. Just think that there are millions and millions of people in varying organizations and parties then how did such bogus results came out? Is it possible that so many supporters and collabrative parties are together with millions of citizens as their members and though such a difference and cheating with so many political parties, cheating with all 100 million citizens of India. Will you keep quite after knowing the truth of game played with your democratic rights? No don't sit ! everytime opportunity does not knock the door.
(Join your parivaar ! Be Safe and Secure ! No one can dare to touch you or your family members if you are a part of this Sangh Parivaar)
Forward this email to every member, every citizen of every state, every city and every rural as well as urban areas, and tell them also to keep forwarding this information to everyone and also take actions on their independant level as much as possible all across the nation with full force, every where in reach of each and every individual person all over the nation in each and every village, each and every family all over the nation. Let every person across the nation know how he/she has been cheated this time in the elections through EVM Tampering and modifying the programs. This was a LIVE ON AIR Evidence, so no one can even say that the video is wrong or has any problems or threats. I do my work with 100% perfection only and do not leave any option or chance for anyone to blame me anywhere.
Media has always blamed RSS, VHP, all Sangh Parivaar Organizations as well as BJP for hindutva? Who the hell says that our organizations are only for hindu religions? Media self promotes themselves to increase their ratings and financial advertising revenues. I have evidence to prove this based on my research. Check these evidences:
1) Sikandar Bakht earlier, Mukhtar Abbas Naqvi and Shahnawaz Hussain are members of BJP from years. They are muslim and similar a large number of muslims are their in BJP. If the Sangh Parivar, VHP or BJP or any of their organizations are with hindu then why from years they are in BJP? Does media have answer to this?
2) There are the links of all small and big organizations linked with Sangh Parivar: http://www.sanghparivar.org/links Go through all of them and their members and executive level members. You will find many of them are muslim. Then can media answer that whether which is that day or time when Sangh Parivar has forcefully told those muslim members to leave the organization? We are believers of unity and peace. We don't accept terrorism, that doesn't mean that we don't accept Humanity?
VHP or RSS or BJP or Sangh Parivar organization which never forcefully applies or imposed any particular religion related practice on any one across the nation. For example let's take my case. Why I am with VHP and RSS and BJP? Not for hindutva reasons. I am here because of unity of so many millions and millions of people. I have in my office all types of people of all types of religion. Similarly every individual who joins VHP or RSS has their own reasons why they are with RSS, BJP and VHP. But the idiot electronic media is falsefully promoting the wrong philosophy of RSS and VHP. The day when the mind if millions of VHP and RSS leaders and millions of their members is out of control. I promise that this wrong action of media will lead to end of their survival and will also lead to end of their company forever. They are falsefully showing continously wrong things about VHP, BJP and RSS philosophy. I have a lot of friends and colleagues in every religion. I never had any problems with anyone of them. Media has created the circumstances of hindutva related philosophy in between the public. No doubt they are promoting Hindutva, but there is also no doubt that they are not forcing hindutva to be applied on anyone. There is a difference when we talk both the things seperately. If any member of sangh parivar is hindu, then that member has rights of freedom to promote his religion. Similalry, if he is sikh he has the rights to promote sikhism. But either of them is not having rights nor sangh praivar's any organizations allows any member to forcefully accept hindutva in the way the Islamic Terrorism Organizations perform. This where and why I had to come out with this campaign to clarify everything and explain it in depth to the every citizen of our country and to every citizen of every nation all over world. We are a peaceful organization and accept all religions of all the nations.
MEDIA APNI ROTI SEKNE KE LIYE 100 MILLION HINDUSTANI CITIZENS KO UNITED HONE SE ROKNE KI KOSHISH KAR RAHI HAI. KYON KI WOH JAANTE HAI KI AGAR HINDUSTAAN KI JANTA UNITED HO GAYI TO UNKI KYA HAALAT HOGI. MEDIA IS USING DIVIDE AND RULE POLICY AGAINST SANGH PARIVAR ORGANIZATIONS, BJP, VHP AND RSS AND THEIR MEMBERS AND MISGUIDING THE INDIAN CITIZENS. AAJ KI MEDIA KE LIYE UNKI KALAM, UNKA HATHIYAAR HO GAYA HAI. JIS KALAM KO EK ZAMAANE MEIN GANDHIJI JAISE LOG SAACHAI KE LIYE ISTEMAAL KARTE THE, US KALAM KO AAJKE MEDIA WALE APNI JEB GARAM KARNE KE LIYE KARTE HAI. YEH HI HAI SACHCHAY, AGAR MEDIA MEIN SUN NE KI TAAKAT HAI TO SUNO. TELEVISION PAR 10 BAAR YEH DIKHANE SE KI HUM SACHCHI KHABAR DIKHATE HAI, KOI MAHATMA GANDHI NAHIN BAN JATA. LEKIN MEIN BHI CHUP BAITHNE WALO MEIN SE NAHIN HOON.
MAHATMA GANDHI NE ANGREJON SE DESH KO AAJAD KARVAYA THA,
MEIN IS DESH KO CONGRESS SE AAJAD KARVA KE RAHUNGA.
TAB TAK CHUP NAHIN BAITHUNGA,
JAB TAK MERE MOOH MEIN JUBAAN HAI,
AUR JAB TAK MERE HATH-PERON MEIN JAAN HAI,
JAB TAK SAANSO KA TOOFAN HAI,
JAB TAK MUJH MEIN SACHCHA IMAAN HAI .....
BJP, VHP and RSS never forces anyone and/or tells anyone to leave their religion and join Hinduism. We are those people who wants to live with freedom and let other live with freedom. But media always try to misguide the general public by making the news sensational and then creating an issue for them to increase ratings of their channels and fetch financial benefits from the advertisers. What can BJP, VHP and RSS do in that? BJP, RSS or any Sangh Parivar cannot force them to stop their news. Everyone has freedom of rights to say whatever they want. But anyway, the media will not be able to stop coming out the truth in front of everyone and that day will be the end of media agencies. Because when that day comes peoples will be mentally so much out of control that they will not be able to face the 100 million Indian Public. Media thinks that what we will show is the only truth, because they know that a common man cannot come out and start his own television channel to show the truth. But here media forgets one thing that now New media(Internet) Era has came and no one is any more depended on media alone. With the help of internet we can even target more then the people that media can target. So, if you are from any religion and believe the unity then do not worry and/or get misguided by any media agency. They want sensational news and will use you and throw you. This is the truth of media agencies in India. I have faced such troubles several times. Trust me ! I am telling the only truth and real fact in this email.
This is first 4 minutes video. To see the complete video in which you can see how with the help of trojan horse program the EVM results were modified. The complete video splitted in 6 parts can be seen here: http://www.youtube.com/mohmaslam Please check this url for complete video. I have to post it in parts because on youtube only 10 minutes video is allowed, not more then 10 minutes. Whereas my complete live telecast is of 1 hour. So, I will post it in parts. I have sent the video to the company for dividing it into parts.
My Target is millions and millions of people which I will achieve in one month and will work on following poetic grounds:
Kuch Karke Humein Dikhana Hai,
Bharat Ko Aage Lana Hai !
Rhode Patthar Jo Koi Bhi Aye,
Un Sabko Hamein Mitana Hai !
Ae Bharat Ke Rehne Walon,
Tumko Bhi Saath Nibhana Hai !
Kuch Karke Humein Dikhana Hai,
Bharat Ko Aage Lana Hai.
Aaj Agar, Nahin Kar Paye Kuch Toh,
Jeevan Bhar Andhiyara Hai !
Lekin Agar Kar Paye Kuch Toh,
Phir Yeh Desh Tumhara Hai !
Is Desh Ke Har Ek Dil Mein,
Yeh Atma Vishwaas Jagana Hai !
Kuch Karke Humein Dikhana Hai,
Bharat Ko Aage Lana Hai.
Bum Chahe Ho Bandook Samne,
Taan Ke Sina Kehna Hai !
Chalte Raho Badhte Chalo,
Agar Duniya Ko Hilana Hai !
Chal Pade Ho Jis Raste Par Tum,
Nahin Chod Ke Usko Jaana Hai !
Kuch Karke Humein Dikhana Hai,
Bharat Ko Aage Lana Hai.
(This is the mother who gave birth to our parivaar and we will all together respect our mother and save here from fraudsters and cheaters.)
This is urgent and needs immediate action on the matter at a large level with full force. This is not a work for a particular one person or party or orgnanization. Instead this is for all of us and we will all be proud if due to our efforts re-election issue comes into action. So, it needs that every take out some time daily to keep forwarding this issue to every one all over the nation in each and every village and each and every area of each and every city all over India. Some of the supporters are required to record the CD of the video and submit them to people in areas where there are no news channels or internet facility such as rural and tribal areas. Use the production services to change the language in the areas where people do not understand hindi. Translate it to their mother toungue language and let them all feel from inside that how they have all been cheated in these recent 2009 elections. Because in the voting session during this LIVE on air telecast 90% people agreed that yes there was EVM tampering in this election due to which a huge change in modification of electronic voting machines(EVM) results was the reason of defeat of the national citizen's favourite candidates. Direct attack through cheating and fraud was done by winners with the feelings and emotions of 100 million citizens of India. Everyone should know now the truth face of fraud political people of Congress. It's the question of life for all of us and our benefits. So, hope you understand and do as much as possible to spread this message and explain it to every person all across the country. You can forward this email to all in your family, friends, organizations, colleagues, all employees, workers, etc. Paste the copy of this complete email article on internet, on forums, on blogs, everywhere possible for you. This is the way you can contribute to this unity project. Just post the copy as it is on article directories. If you need softwares to promote this email campaign, just mail me and I will send it to you with all explanations how to use it. In news sections, in comments, every where post the whole of the article. If there are places where images cannot be posted then just post the text contents.
Thanking you all with a hope of co-operation and compromise from all national citizens across the country. This is not a war for a specific party or political person, instead this is my personal campaign for integration of unity amongst the national citizens without personal benefits for national interest, for public interest. Truth is bitter but always wins when worked out with unity.
Sincerely
Kalpesh Sharma
Digital Signature of Achievements
Freelance Security Consultant, Army Intelligence
Ex-Technical Assistant to Honorable Chief Minister Narendra Modi
Excellent Internet Marketing and Online Promotion Expert
World's Biggest Penetration Tester (A World Record Holder)
Online Technical Intelligence and Online Web Research Expert
Private Cyber Crime Investigator for Some Media Agencies (Delhi Bomb Blast Case)
Actor: Diploma in Acting from Honorable Anupam Kher's Institute
Acting Portfolio and Profile: http://www.imj-online.com/kalpeshsharma
Email: shrishanidev(a)gmail.com or cmtechnical(a)bsnl.in or armyintelli(a)reliancemail.net
My Services Details: http://www.getafreelancer.com/users/417883.html
Mobile: +91-9227435453
Preferred Way of Communication: Email and SMS Only
Ahmedabad, India.
My Permanent Village Address: Village Tholai, Tehsil: Jamva Ramgarh, District: Jaipur, Rajasthan.
Member of the Honorable BJP, RSS, VHP and all the Sangh Pariwaar Organizations.
About Sangh Pariwaar: Do you know, today millions and millions of people in India are members of Sangh Pariwaar. A very huge and big Organization. Think of it, that if you are a member of Sangh Pariwaar then how much secure you will be and your family, children will be. So, simply come and join Sangh Pariwaar and if you have any trouble just let me know. I am there for helping everyone for national interest without my personal benefits. We are not Congress who just works for their personal benefits only. See the power of unity and huge organizational structure here on http://www.sanghparivar.org and all it's sister concern party's organizations and unions of millions of government employees which are all connected with Sangh Pariwaar. Check it here which organizations are a part of Sangh Pariwaar: http://www.sanghparivar.org/links/view/all/1 and to join Sangh Pariwaar go on this link: http://www.sanghparivar.org/user/register
(This is who will take care of us. I promise on behalf of him because I know he is a great person. I am proud that he is ruling on my state)
14 years, 2 months
elfutils status 2009-07-27
by Roland McGrath
Late on my status filing again. I was hacking late into Sunday night
but then conked out without posting status.
Last week:
Time actually spent on elfutils: 60%
* trunk work
** dwarf_frame_* API change using DW_OP_stack_value
** dwarf_getlocation trivia for new ops
** test builds/prep for 0.142 release
* dwarf branch
** more tracker/maker, getting there
This week:
Time expected to spend on elfutils: 75%
* 0.142 release
** will repeat test builds after recent changes
** now only waiting for double-check on a 450218 test case
-> is an old bug, don't really need to wait for it
** should be ready to go out any time
* dwarf
** tracker/maker
-> hope to have it done in another day or two
** get emitters going
14 years, 2 months
arguing
by Chesley
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14 years, 2 months
2009-07-27 Status
by Petr Machata
Last week
---------
Time spent on elfutils: 80%
* That was mostly output. The approach to handling physical Elf file is
to take the original Elf file, drop all the debug sections, and
reintroduce them rebuilt.
** I took the stripping code from strip.c, made it more C++-y (e.g.
dropped inline functions) and dropped lots of stuff that I don't need
(e.g. separate debuginfo).
** I introduced some bits to make it simple to add more debuginfo
sections in the file.
** At the end of the week, I was able to produce a nice .debug_abbrev
with a "blah" string in it. Yay, I guess, although I'd hoped to have
something more substantial.
** Nothing done on relocations yet. They don't even get dropped.
I'm afraid that the strip logic simply won't even remove the debug
sections since reloc sections keep referencing them, but I didn't try.
* I've fixed a couple bugs in dwarflint that I hit as I tried to
validate ELFs broken in various ways. Also added a new check or two.
This week
---------
Time scheduled for elfutils: 80%
* I just committed bits that I've done during odd moments of the weekend
and today before now. It currently emits .debug_abbrev with canonical
forms (i.e. no compression done at all).
** The code is written so that it should be simple to build several
abbreviations from one shape (so that you could partition DIEs of one
shape to e.g. those whose values fit into someform_2 and those that need
someform_4). That may actually be too expensive to implement though
(runtime-wise), for big die trees, and I'm afraid the gain won't be that
big.
* Next I'd like to have it emit .debug_info. My current thinking is as
follows:
** First grab my trusty Dwarf spec and read through it making sure
that what's below makes some sense.
** Start by building a separate binary blob for each DIE, with some
pieces uninitialized (references to other dies), but with enough space
reserved for that information.
** I think I'll need to create one DW_AT_partial_unit per unique die
(except for DW_AT_compile units which are left as are).
*** Figure out how to find out that the sub-tree should be emitted
as-is, and not fragmented further. Probably something with number of
sharees and size of DIE. I.e., does it pay off to wrap the die in
partial unit?
** Then I assemble all the pieces. During assembly, all references
to other dies are translated to DW_AT_imported_unit DIEs. Now that I
know where each DIE is, I do second pass and fill in DIE addresses.
** One thing that I'm afraid of is that the size necessary for
certain attributes turns out to depend on layout of DIEs.
* If I get this done by Friday, I'll start on optimizing .debug_abbrev.
To get one optimal abbrev per shape should be easy.
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14 years, 2 months