about summary refs log tree commit diff
path: root/src/ldso/x86_64/start.s
Commit message (Collapse)AuthorAgeFilesLines
* add ldd and main program loading support to dynamic linkerRich Felker2012-05-271-0/+8
|
* cleanup dynamic linker start code cruftRich Felker2012-05-271-1/+0
| | | | | | | | | | | | | two actual issues: one is that __dynlink no longer wants/needs a GOT pointer argument, so the code to generate that argument can be removed. the other issue was that in the i386 code, argc/argv were being loaded into registers that would be call-clobbered, then copied to preserved registers, rather than just being loaded into the proper call-preserved registers to begin with. this cleanup is in preparation for adding new dynamic linker functionality (ability to explicitly invoke the dynamic linker to run a program).
* x86_64: ensure that dtor pointer passed to app is 0 so it won't be usedRich Felker2011-06-191-0/+1
| | | | | leaving it uninitialized caused unpredictable crashes or worse due to calling an indeterminate function pointer.
* experimental dynamic linker!Rich Felker2011-06-181-0/+8
some notes: - library search path is hard coded - x86_64 code is untested and may not work - dlopen/dlsym is not yet implemented - relocations in read-only memory won't work