build-id/Makefile, branch masterExample code for reading an ELF binary's .note.gnu.build-id section, from the program itselfhttp://git.mattst88.com/build-id/atom/Makefile?&h=master2020-06-24T17:32:21ZRemove usage of bash '&>' redirection2020-06-24T17:32:21ZNeil Rozaneil@rtr.ai2020-06-23T13:35:18Zurn:sha1:72ea519e3563df60fe81a9534e0b8b85bd63a37f
On systems where /bin/sh is dash, this would lead to empty *.expected
and *.results files and thus make check would always succeed.
Closes: #1
Always build with -fPIC2020-03-25T06:21:25ZMatt Turnermattst88@gmail.com2020-03-25T06:21:25Zurn:sha1:d4c6267e4f8b28df6c98e1c6c5cb90021ce3665d
The dladdr(3) explains that dladdr often doesn't do what you expect
because the function pointer will point to the PLT entry in the original
object and not the actual function itself.
Add a program using dlopen2019-04-25T17:52:20ZMatt Turnermattst88@gmail.com2019-04-22T22:03:40Zurn:sha1:8f13b4246acddd0cde1d34f81f4329dc22649d7dAdd a check target to the Makefile2019-04-25T17:52:20ZMatt Turnermattst88@gmail.com2019-04-11T20:23:21Zurn:sha1:7e5251db3421e221e3f72cfece21093afc5f0651Add build_id_find_nhdr_by_symbol()2017-11-25T07:37:07ZMatt Turnermattst88@gmail.com2017-11-25T07:09:01Zurn:sha1:ca636ca673e3b7ad5132ab1659598f6dffbcd8f7Use dl_iterate_phdr() instead of a linker script.2016-12-15T00:19:48ZMatt Turnermattst88@gmail.com2016-12-15T00:04:26Zurn:sha1:838ebbcf92352217ea7ed16e0894ea585a357f88
According to Mike Frysinger [1] it is not reliable to read ELF sections
at runtime, which the previous method involving the linker script was
doing.
Instead, use dl_iterate_phdr() to find the build id.
[1] https://sourceware.org/ml/binutils/2016-12/msg00207.html
Initial commit2016-12-08T19:28:53ZMatt Turnermattst88@gmail.com2016-12-08T19:28:53Zurn:sha1:48b08be237ae2708d36abb50ca381eb90ce51f67