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@ -1,19 +1,19 @@ |
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GDB SNAPSHOT SYSTEM |
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(general info) |
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Updated 5/24/93 |
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Updated 8/23/93 |
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WHAT ARE GDB SNAPSHOTS |
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---------------------- |
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Snapshots are an "image" of the main GDB development tree, captured at a |
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particular random instant in time. When you use the snapshots, you should |
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be able to maintain a local copy of GDB that is no more than one day older |
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than the official source tree used by the GDB maintainers. |
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particular random instant in time. When you use the snapshots, you should be |
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able to maintain a local copy of GDB that is no more than one day older than |
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the official source tree used by the GDB maintainers. |
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The primary purpose of providing snapshots is to widen the group of |
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motivated developers that would like to help test, debug, and enhance GDB, |
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by providing you with access to the "latest and greatest" source. |
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This has several advantages, and several disadvantages. |
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The primary purpose of providing snapshots is to widen the group of motivated |
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developers that would like to help test, debug, and enhance GDB, by providing |
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you with access to the "latest and greatest" source. This has several |
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advantages, and several disadvantages. |
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First the advantages: |
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@ -68,9 +68,13 @@ This has several advantages, and several disadvantages. |
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HOW TO GET THE SNAPSHOTS |
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------------------------ |
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The current plan is to provide a full snapshot once weekly, and incremental |
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diffs on a daily basis. Each daily diff will be relative to the source |
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tree for the previous day after applying all incremental diffs to date. |
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The current plan is to provide a full snapshot daily, so that users getting a |
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snapshot for the first time, or updating after a long period of not updating, |
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can get the latest version in a single operation. Along with the full |
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snapshot, we will provide incremental diffs on a daily basis. Each daily diff |
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will be relative to the source tree after applying all previous daily diffs. |
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The daily diffs are for people who have relatively low bandwidth ftp or uucp |
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connections. |
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The files will be available via anonymous ftp from ftp.cygnus.com, in |
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directory pub/gdb, and should look something like: |
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@ -83,39 +87,39 @@ directory pub/gdb, and should look something like: |
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. |
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. |
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At some point, the files should automatically appear during the evening |
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as a result of an automatically run process each evening. For the moment |
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however, the process will be manually run by one of the gdb maintainers |
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and the appropriate files moved to the ftp area at some convenient point |
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during the day. |
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At some point, the files should automatically appear during the evening as a |
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result of an automatically run process each evening. For the moment however, |
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the process will be manually run by one of the gdb maintainers and the |
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appropriate files moved to the ftp area at some convenient point during the |
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day. |
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Note that the current plan is to provide GNU gzip compressed files only. |
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You can ftp gzip from prep.ai.mit.edu in directory pub/gnu. |
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Note that the current plan is to provide GNU gzip compressed files only. You |
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can ftp gzip from prep.ai.mit.edu in directory pub/gnu. |
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Also, as the gcc developers did with their gcc snapshot system, even though |
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we will make the snapshots available on a publically accessible ftp area, |
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we ask that recipients not widely publicise their availability. The motivation |
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for this request is not to hoard them, but to avoid the situation where |
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the general GDB user base naively attempts to use the snapshots, has trouble |
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with them, complains publically, and the reputation of GDB declines because |
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of a perception of instability or lack of quality control. |
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Also, as the gcc developers did with their gcc snapshot system, even though we |
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will make the snapshots available on a publically accessible ftp area, we ask |
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that recipients not widely publicise their availability. The motivation for |
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this request is not to hoard them, but to avoid the situation where the |
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general GDB user base naively attempts to use the snapshots, has trouble with |
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them, complains publically, and the reputation of GDB declines because of a |
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perception of instability or lack of quality control. |
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GDB TEST SUITE |
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-------------- |
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A test suite is distributed as an integral part of the snapshots. However, |
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to use it you will need to get a copy of the dejagnu testing framework. |
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Snapshots of dejagnu are available alongside the GDB snapshots, using |
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the same naming conventions as the GDB snapshots. Once you have installed |
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the dejagnu framework, a simple "make check" in the GDB directory should |
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be sufficient to run the tests. |
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A test suite is distributed as an integral part of the snapshots. However, to |
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use it you will need to get a copy of the dejagnu testing framework. |
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Snapshots of dejagnu are available alongside the GDB snapshots, using the same |
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naming conventions as the GDB snapshots. Once you have installed the dejagnu |
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framework, a simple "make check" in the GDB directory should be sufficient to |
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run the tests. |
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Note that the test suite is still in its infancy. The test framework |
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itself might not install on your system if you have an environment that |
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is not similar to one that the GDB developers already use. The tests |
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themselves only cover a small portion of GDB features, and what tests |
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do exist for a feature are not exhaustive. New tests are welcomed. |
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Note that the test suite is still in its infancy. The test framework itself |
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might not install on your system if you have an environment that is not |
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similar to one that the GDB developers already use. The tests themselves only |
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cover a small portion of GDB features, and what tests do exist for a feature |
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are not exhaustive. New tests are welcomed. |
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GETTING HELP, GDB DISCUSSIONS, etc |
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@ -123,30 +127,30 @@ GETTING HELP, GDB DISCUSSIONS, etc |
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Mail sent to gdb-testers@cygnus.com goes to everyone on the list of gdb |
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testers, which should include everyone getting the gdb snapshots. It is |
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appropriate whenever you wish your mail to be seen by all the testers. |
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This would include announcements of any kind, notices of intent to implement |
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a specific enhancement (to coordinate with other people on the list), etc. |
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Before sending something to gdb-testers, ask yourself if what you are about |
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to send would be something you would care to see show up in your mailbox if |
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it was sent by someone else. |
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appropriate whenever you wish your mail to be seen by all the testers. This |
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would include announcements of any kind, notices of intent to implement a |
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specific enhancement (to coordinate with other people on the list), etc. |
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Before sending something to gdb-testers, ask yourself if what you are about to |
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send would be something you would care to see show up in your mailbox if it |
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was sent by someone else. |
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Mail sent to gdb-patches@cygnus.com goes to gdb support people internal to |
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Cygnus. Despite the name, it is appropriate for more than just patches. |
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Questions about the snapshots, problems accessing the snapshots, bug reports |
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without patches, requests for advice on how to track down a bug you have |
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encountered, discussion about bug fixes or enhancements in progress, etc are |
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all welcome in gdb-patches. Usually mail sent to gdb-patches will result in |
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a short private email discussion between you and one or more of the gdb |
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all welcome in gdb-patches. Usually mail sent to gdb-patches will result in a |
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short private email discussion between you and one or more of the gdb |
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developers who can assist you with simple questions or handle your patches. |
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Note that gdb-patches is *not* a general gdb electronic support line. |
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If you are in need of such support, you probably should not be using the |
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snapshots and should seek out one of the commercial suppliers of support |
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for free software. |
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Note that gdb-patches is *not* a general gdb electronic support line. If you |
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are in need of such support, you probably should not be using the snapshots |
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and should seek out one of the commercial suppliers of support for free |
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software. |
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Do *not* send any questions about the snapshots or patches specific to |
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the snapshots to bug-gdb@prep.ai.mit.edu (gateway'd to the usenet group |
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gnu.gdb.bug). Nobody there will have any idea what you are talking about |
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and it will just cause confusion. |
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Do *not* send any questions about the snapshots or patches specific to the |
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snapshots to bug-gdb@prep.ai.mit.edu (gateway'd to the usenet group |
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gnu.gdb.bug). Nobody there will have any idea what you are talking about and |
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it will just cause confusion. |
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BUG REPORTS |
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@ -154,29 +158,29 @@ BUG REPORTS |
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Send bug reports to gdb-patches@cygnus.com. |
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Note that since no testing is done on the snapshots, and snapshots may even |
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be made when gdb is in an inconsistent state, it may not be unusual for an |
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occasional snapshot to have a very obvious bug, such as failure to compile |
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on *any* machine. It is likely that such bugs will be fixed by the next |
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snapshot, so it really isn't necessary to report them unless they persist |
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for a couple days. |
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Note that since no testing is done on the snapshots, and snapshots may even be |
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made when gdb is in an inconsistent state, it may not be unusual for an |
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occasional snapshot to have a very obvious bug, such as failure to compile on |
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*any* machine. It is likely that such bugs will be fixed by the next |
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snapshot, so it really isn't necessary to report them unless they persist for |
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a couple days. |
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Missing files should always be reported, since they usually mean there |
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is a problem with the snapshot-generating process and we won't know |
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about them unless someone tells us. |
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Missing files should always be reported, since they usually mean there is a |
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problem with the snapshot-generating process and we won't know about them |
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unless someone tells us. |
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Bugs which are non-obvious, such as failure to compile on only a |
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specific machine, a new machine dependent or obscure bug (particularly |
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one not detected by the testsuite), etc should be reported when you |
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discover them, or have a suggested patch to fix them. |
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Bugs which are non-obvious, such as failure to compile on only a specific |
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machine, a new machine dependent or obscure bug (particularly one not detected |
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by the testsuite), etc should be reported when you discover them, or have a |
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suggested patch to fix them. |
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FORMAT FOR PATCHES |
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------------------ |
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If you have a fix for a bug, or an enhancement to submit, send your |
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patch to gdb-patches@cygnus.com. Here are some simple guidelines for |
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submitting patches: |
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If you have a fix for a bug, or an enhancement to submit, send your patch to |
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gdb-patches@cygnus.com. Here are some simple guidelines for submitting |
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patches: |
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o Use "context diffs" for patches. A typical command for generating |
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context diffs is "diff -rc gdb-old gdb-new". |
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@ -201,11 +205,11 @@ BISON and BYACC |
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--------------- |
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GDB's language parsers are all portable, and can be compiled with bison, |
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byacc, traditional Unix yacc, or other compatible parser generators. |
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For various reasons, Cygnus uses byacc rather than bison by default. When |
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a general gdb distribution is made, this default is switched back to bison. |
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The snapshots follow the Cygnus default. Your options, if you do not already |
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have byacc installed, include: |
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byacc, traditional Unix yacc, or other compatible parser generators. For |
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various reasons, Cygnus uses byacc rather than bison by default. When a |
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general gdb distribution is made, this default is switched back to bison. The |
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snapshots follow the Cygnus default. Your options, if you do not already have |
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byacc installed, include: |
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o Hack the upper level Makefile.in lines that look like: |
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@ -225,11 +229,11 @@ have byacc installed, include: |
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UNIX MAKE and GNU MAKE |
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---------------------- |
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When you build gdb in the same directory as the source, you should be able |
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to use any available "make" that has traditional UNIX make functionality. |
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If you build gdb in a separate directory tree from the source, using the |
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configure "--srcdir" option, then only GNU make is fully supported, although |
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other makes with complete VPATH support should work (SunOS make for example). |
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When you build gdb in the same directory as the source, you should be able to |
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use any available "make" that has traditional UNIX make functionality. If you |
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build gdb in a separate directory tree from the source, using the configure |
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"--srcdir" option, then only GNU make is fully supported, although other makes |
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with complete VPATH support should work (SunOS make for example). |
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@ -237,4 +241,3 @@ Thanks for your help and support. |
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-Fred Fish |
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Cygnus Support |
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