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* libdw, readelf: Make sure there is enough data to read full aranges header.Mark Wielaard2018-08-181-0/+4
| | | | | | | | | | dwarf_getaranges didn't check if there was enough data left to read both the address and segment size. readelf didn't check there was enough data left to read the segment size. https://sourceware.org/bugzilla/show_bug.cgi?id=23541 Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Don't leak arange if we cannot figure out which CU it belongs to.Mark Wielaard2018-06-081-1/+6
| | | | | | | | In the unlikely case that __libdw_findcu fails to find the associated CU we would leak one arange because it wasn't linked into the arangelist list yet. Make sure to free it immediately. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Parse new DWARF5 units and CU DIEs.Mark Wielaard2018-02-211-11/+5
| | | | | | | | Parse DWARF5 units, add the unit_type to the Dwarf_CU and generalize some code calculating the header length and getting at the first DIE of a unit. Unit headers can have different sizes depending on the unit type. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Remove old-style function definitions.Mark Wielaard2015-09-231-4/+1
| | | | | | | We already require -std=gnu99 and old-style function definitions might hide some compiler warnings. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* libdw: dwarf_getaranges check there is enough data before reading.Mark Wielaard2015-05-121-2/+14
| | | | | | https://bugzilla.redhat.com/show_bug.cgi?id=1170810#c30 Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Guard against 64bit unsigned wrap around in (int) compare functions.Mark Wielaard2014-12-161-1/+3
| | | | | | | | | Dwarf_Adrr and Dwarf_Off are 64-bit unsigned, and comparison functions used in qsort or tfind return int, it is possible for the difference to be so large that it wraps around. Make sure to just return -1, 0 or 1 in compare_aranges and compare_cukey. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Fix some (harmless) cppcheck warnings.Mark Wielaard2013-11-091-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | [dwarf_getaranges.c:149]: (warning) Ineffective statement similar to '*A++;'. Did you intend to write '(*A)++;'? There was already an XXX statement that we weren't using the result. Explicitly read the segment_size and check it is zero. And report an error if it isn't, since we aren't prepared to handle such a case. [arlib.c:62]: (error) Uninitialized variable: tmpbuf [arlib.c:124]: (error) Uninitialized variable: tmpbuf cppcheck is wrong. tmpbuf is initialized in the snprintf call whose result is use in the same memcpy call. It does make the code less readable and harder to understand. So explicitly split the snprintf and memcpy calls. [nm.c:766]: (warning) Assert statement modifies 'cnt'. The cnt variable was only used for this assert sanity check. But it is bad style to do have side effects inside an assert statement. Increase cnt after the assert. Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Update name, license and contributor policy.Mark Wielaard2012-06-051-40/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Change name from "Red Hat elfutils" to "elfutils". * Update license of standalone tools and test from GPLv2 to GPLv3+. * Change license of libraries from GPLv2+exception to GPLv2/LGPLv3+. * Add Developer Certificate of Origin based contributor policy. top-level: - COPYING: Upgraded from GPLv2 to GPLv3. - CONTRIBUTING, COPYING-GPLv2, COPYING-LGPLv3: New files. - NEWS: Added note about new contribution and license policy. - Makefile.am: Updated to GPLv3, added new files to EXTRA_DIST. - configure.ac: Update to GPLv3, changed AC_INIT name to 'elfutils'. backends, lib, libasm, libcpu, libdw, libdwfl, libebl, libelf: - All files updated to GPLv2/LGPLv3+. Except some very small files (<5 lines) which didn't have any headers at all before, the linker .maps files and the libcpu/defs files which only contain data and libelf/elf.h which comes from glibc and is under LGPLv2+. config: - elfutils.spec.in: Add new License: headers and new %doc files. - Update all license headers to GPLv2/LGPLv3+ for files used by libs. src, tests: - All files updated to GPLv3+. Except for the test bz2 data files, the linker maps and script files and some very small files (<5 lines) that don't have any headers. Signed-off-by: Richard Fontana <rfontana@redhat.com> Signed-off-by: Mark Wielaard <mjw@redhat.com>
* dwarf_getaranges: Avoid alloca to cope with huge .debug_aranges sections.Roland McGrath2010-10-051-17/+35
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* Handle reading .debug_types section.Roland McGrath2010-06-161-2/+3
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* Do some constification to avoid dubious casts.Roland McGrath2009-06-181-8/+7
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* Squashed commit of the following:Ulrich Drepper2009-06-141-16/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 77abb31cb8d55980ef92260917a7ecdd228b1a44 Author: Petr Machata <pmachata@redhat.com> Date: Mon Jun 8 15:46:16 2009 +0200 Fix a bug in offset checking commit b794eac4f8d3e08101b5d2924523b1259bbc1b17 Author: Petr Machata <pmachata@redhat.com> Date: Wed Jun 3 16:00:01 2009 +0200 Cosmetic, get rid of defining several variables per line commit a23938fe35d515a3d75a51f6204771f3cf6c9ec4 Author: Petr Machata <pmachata@redhat.com> Date: Wed Jun 3 15:50:03 2009 +0200 Restructure the code to decrease the binary size commit 7c301e3d4e8584dfb3174855fb6af3d5791dfeed Author: Petr Machata <pmachata@redhat.com> Date: Mon Jun 1 19:43:28 2009 +0200 Shuffle a couple pieces of code around to make the code smaller commit 6325323482c2a3e17409d32c7feec9461be26614 Merge: 83ac53d... e94b1b2... Author: Petr Machata <pmachata@redhat.com> Date: Fri May 22 08:49:07 2009 +0200 Merge branch 'master' of ssh://pmachata@git.fedorahosted.org/git/elfutils into pmachata/reader_hooks Conflicts: libdw/ChangeLog commit 83ac53db400945c074e77ec9904efe550903a0e2 Author: Petr Machata <pmachata@redhat.com> Date: Fri May 22 08:40:25 2009 +0200 Call reloc hook with the original address, not incremented commit f1996388745566abc1ca1c1700b3b7eded208575 Author: Petr Machata <pmachata@redhat.com> Date: Wed May 6 16:53:03 2009 +0200 Rewrite boundary checking logic so that it's immune to arithmetic overflow * ... also get rid of some code redundancy. commit 0c1df732822d83548edd0d005f3450281ed1701b Author: Petr Machata <pmachata@redhat.com> Date: Wed May 6 16:25:09 2009 +0200 __libdw_read_offset* take extra argument for header size checks * also presence of debug data and buffer is checked in __libdw_in_section commit 6fb192e360f842cacb34a90c03cd0524cccc3dec Author: Petr Machata <pmachata@redhat.com> Date: Wed May 6 15:51:20 2009 +0200 Check for presence of data before loading the offset commit a2e7612b165d83dd241225f87075fa4f58d18781 Author: Petr Machata <pmachata@redhat.com> Date: Wed May 6 15:04:16 2009 +0200 Cosmetic changes commit 8b1aad2c2f6c8dc02b3e704e4f386c1827e385cb Author: Petr Machata <pmachata@redhat.com> Date: Tue May 5 15:34:13 2009 +0200 Improve reader hook functions a bit * ... so that they are closer match to what's need on call sites commit 3854b7fbab2fe331711365f94a295af82164d0d2 Author: Petr Machata <pmachata@redhat.com> Date: Tue May 5 14:33:50 2009 +0200 Fixes in use of reader hooks in __libdw_formptr and dwarf_formudata * and a bit more commit 335075596b6acef6e59919155e2b087e690a572d Author: Petr Machata <pmachata@redhat.com> Date: Tue May 5 14:32:39 2009 +0200 Rename __libdw_read_udata_addr to __libdw_formptr commit 8273a2adaf8cb2ee203926af2849e4f96f8a6eaf Author: Petr Machata <pmachata@redhat.com> Date: Tue May 5 02:53:40 2009 +0200 Introduce __libdw_read_udata_address * the use in dwarf_ranges is iffy, there's a functionality mismatch. Need to find some better way commit 1c897f4abde1530038d332f4fc03a596a24f6aaf Author: Petr Machata <pmachata@redhat.com> Date: Mon May 4 18:09:13 2009 +0200 ChangeLog entries for previous commit commit 90d7c39454468b91c0fd6514a4e8d821222d6adb Author: Petr Machata <pmachata@redhat.com> Date: Mon May 4 18:07:54 2009 +0200 Fix bugs, introduce __libdw_read_begin_end_pair_inc commit 9b3923f5b69a3e56590769435c4693f057acdc1f Merge: 6200ba6... 589b3d3... Author: Petr Machata <pmachata@redhat.com> Date: Mon May 4 12:22:21 2009 +0200 Merge branch 'master' of ssh://pmachata@git.fedorahosted.org/git/elfutils into pmachata/reader_hooks commit 6200ba62aa9ea3cb9318f73a27181907a528dbe4 Author: Petr Machata <pmachata@redhat.com> Date: Wed Apr 29 15:31:28 2009 +0200 dwarf_getlocation_addr uses read hooks commit ecbb8cdd8b500e37dc34fc246b912f704fe31ca4 Author: Petr Machata <pmachata@redhat.com> Date: Wed Apr 29 15:16:09 2009 +0200 dwarf_ranges and dwarf_formref use read hooks commit cb8f67b29a896c2660c10aa1028a9dbb377553e9 Author: Petr Machata <pmachata@redhat.com> Date: Tue Apr 28 18:39:04 2009 +0200 Convert several new functions to use read hooks commit b130453eb16a8cf042915e312cc5f189b8b92c01 Author: Petr Machata <pmachata@redhat.com> Date: Tue Apr 28 18:38:27 2009 +0200 Add length read hooks commit bd885ff694817b965231d99f1ab867947998e734 Author: Petr Machata <pmachata@redhat.com> Date: Tue Apr 28 18:36:17 2009 +0200 Constify read hook arguments commit 66fe03f1e489a88b89a15c9e13f9bd33db2729b1 Author: Petr Machata <pmachata@redhat.com> Date: Tue Apr 28 16:11:05 2009 +0200 Change type of return value of offset read hooks to Dwarf_Off commit 22b36e00cc228f5a966f84ca3323e5d652923ce8 Merge: 5b3534b... a7cb532... Author: Petr Machata <pmachata@redhat.com> Date: Mon Apr 27 19:05:25 2009 +0200 Merge branch 'master' of ssh://pmachata@git.fedorahosted.org/git/elfutils into pmachata/reader_hooks commit 5b3534b62cbd45fe4f11dd1be3e492237938cce0 Author: Petr Machata <pmachata@redhat.com> Date: Mon Apr 27 18:53:06 2009 +0200 Rewrites in read hooks * Have the checking and reading logic itself in the header so that it gets optimized out/inlined. Call external relocating hook from there, there will presumably be more work to do, and we presumably don't want to keep this in the header. commit 9e265d71d0eb900e76d6fdb0196ef4fc6507f3a7 Merge: 1783089... 300f3a4... Author: Petr Machata <pmachata@redhat.com> Date: Thu Apr 23 17:45:25 2009 +0200 Merge branch 'master' of ssh://pmachata@git.fedorahosted.org/git/elfutils into pmachata/reader_hooks commit 1783089b184ddea2081bbe5ac4e80420cb6b0803 Author: Petr Machata <pmachata@redhat.com> Date: Thu Apr 23 17:44:48 2009 +0200 Use the new reader hooks in several places commit 11c3d97a5b40ea15edf324092b03da3050610d01 Author: Petr Machata <pmachata@redhat.com> Date: Thu Apr 23 17:40:03 2009 +0200 Introduce reader hooks
* Add missing copyright year updates. Fix ChangeLog.Ulrich Drepper2008-01-221-1/+1
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* Minimal cleanups after merge.Ulrich Drepper2008-01-181-1/+2
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* propagate from branch 'com.redhat.elfutils.nickc.pending' (head ↵Ulrich Drepper2008-01-181-4/+7
| | | | | | 28d6423325f0cc14a133eb6b92a8c3604e437ba6) to branch 'com.redhat.elfutils' (head 6ef48518ed8497626058574c787852bd939d46ee)
* Handle files without aranges information.Ulrich Drepper2006-05-221-1/+10
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* Fix FSF address. No exception for libdwarf.Ulrich Drepper2006-04-041-1/+1
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* propagate from branch 'com.redhat.elfutils.roland.pending' (head ↵Ulrich Drepper2006-04-041-9/+45
| | | | | | 4f8fc821345feef58624f0aa5b470d4827577d8c) to branch 'com.redhat.elfutils' (head 76e26cb54695fd3b21ee8fb5be3036bd68200633)
* 2005-08-01 Roland McGrath <roland@redhat.com>Roland McGrath2005-08-021-0/+9
| | | | | | * dwarf_getaranges.c (dwarf_getaranges): Check for bogus offset. * dwarf_getabbrev.c (__libdw_getabbrev): Likewise.
* Adjust for monotone.Ulrich Drepper2005-07-261-0/+212
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