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AgeCommit message (Collapse)Author
2003-02-15After relocation is completed, remove write protection from GOT/PLT in ld.so.Dale Rahn
2003-02-15Paranoia about mprotect, mprotect page aligned regions for got and plt.Dale Rahn
2003-02-15Do not call mprotect to enable writing for sections which normally areDale Rahn
writable. Idea taken from alpha version. Saves many mprotect syscalls.
2003-02-02knf & ansi; drahn okTheo de Raadt
2003-01-31The version of open in ld.so, _dl_open(), will return -errno instead of -1.Dale Rahn
This is to avoid corrupting 'errno'. Handle this case in _dl_opendir(). This is also the case for _dl_fcntl(). ok deraadt@
2003-01-30Only flush the got address, if there is one. DOH.Dale Rahn
2003-01-30Change the constructor execution order to initialize dependant librariesDale Rahn
first. This mirrors the commit espie put in a.out ld.so recently.
2003-01-24Flush the blrl instruction from the instruction cache if the GOT tag isDale Rahn
present. Fixes illegal instruction problems seen the last few days tested by myself and matthieu@
2003-01-17Change the GOT initialization so that it is done in a function whichDale Rahn
initialized just the correct addresses instead of assuming that the GOT extends from _GLOBAL_OFFSET_TABLE_ to _DYNAMIC. Mostly from NetBSD. ok nate@
2003-01-16whitespace removal.Dale Rahn
2002-12-18Remove pointless 'if 0' code.Dale Rahn
2002-12-18Prepare for an upcoming ELF executable change. This will allow ld.so toDale Rahn
protect the GOT and PLT sections of the executable from being overwritten. This behavior is enabled by changes in the executable/shared object layout, and does not occur without the ld changes.
2002-12-13Compare to ELFMAG byte by byte rather than using full fledged function.Dale Rahn
Also avoids a gas problem for the moment.
2002-12-09Build ld.so as a normal shared object, not with special linkage.Dale Rahn
mprotect the necessary bit to make this work right. ok deraadt@
2002-12-02KNF; openbsd@davidkrause.comTheo de Raadt
2002-12-02typo; ok miod@Christian Weisgerber
2002-12-02Import propolice (http://www.trl.ibm.com/projects/security/ssp), a stackMiod Vallat
attack protection scheme, into gcc. This protection is enabled by default. It can be turned off by using the -fno-stack-protector flag. Code by Hiroaki Etoh (etoh at jp dot ibm dot com); work on openbsd-specific integration by fgsch@, deraadt@ and myself; tests by fgsch@, naddy@ and myself; beer drinking by myself. Please note that system upgrades with this new code will require a new libc and ld.so to be build and installed before the propolice-enabled compiler can be installed.
2002-11-23After fixing these comments, I add another incorrect one.Dale Rahn
2002-11-23Implement [u]mul/[u]div/[u]rem with faster version if availableDale Rahn
on machine. Improves speed for dynamic userland processes when active. Idea from Theo. ok deraadt@
2002-11-23clean up comments.Dale Rahn
2002-11-23Put in a required item. Should not have been deleted to start with.Dale Rahn
2002-11-23Remove some error messages which were incorrectly printed. Some cleanup.Dale Rahn
ok pvalchev@
2002-11-22Fix the comments on which systemcall is being processed, ok deraadt@Dale Rahn
2002-11-22Formatting cleanup, no point in extra nesting block. No functional change.Dale Rahn
2002-11-17Terminate printed strings with newlines.Dale Rahn
2002-11-14Make error messages on symbol lookup failures more useful.Dale Rahn
2002-11-13Check for NULL on pltgot, appearently libraries with no external referencesDale Rahn
will not create a PLT on i386.
2002-11-05Use define, not number.Dale Rahn
2002-10-25Some small fixes in MI code for mips backport. A new reloc md function,Per Fogelstrom
RELOC_GOT, was added to handle mips got bootstrap reloc. Also remove workaround used on previous versions of binutils for mips.
2002-10-23mips archdep stuff update while waiting for ok on miPer Fogelstrom
2002-10-21Remove the -D__PIC__ from this, it does not affect the buildingDale Rahn
of any current platform, so makes no sense. pointed out by Per. Tested on alpha, i386, macppc, sparc, sparc64 (binary diff).
2002-10-21Simplify the ld.so asm api, the data is available other ways.Dale Rahn
tested by naddy@ and myself.
2002-10-04Print full 64 bit address. At least until LD_TRACE_LOADED_OBJECTS_FMT[12]Dale Rahn
is supported properly.
2002-09-09Add lazy binding support for powerpc ld.so. ok pvalchev@ brad@Dale Rahn
2002-09-01Make sure that the symbol return value is always initialized beforeDale Rahn
the address of it is passed to dl_find_symbol(). fixes xpdf lazy binding problem. ok art@
2002-08-31argh, include prototype for dl_fdprintf(), missed by myself and reviewers.Dale Rahn
2002-08-31Add the ability to output to file descriptors besides stderr.Dale Rahn
This allows ldd outptut go to stdout like it should. ok deraadt@
2002-08-28o) start new sentence on a new line;Mike Pechkin
o) don't use .Nm w/o argument in .SYNOPSIS; I waste time, when fixing already cleaned pages. :( one man ok@
2002-08-23Fix after recent changes.Artur Grabowski
2002-08-23Support for i386 ELF. Not an indication that the change is going to be made,Dale Rahn
just so that these files are maintained in the tree.
2002-08-23Change arguments to _dl_find_symbol() myself, warnnotfound, and inplt intoDale Rahn
a single flags field with bits representing each. Use defines to create the appropriate masks. Add a new argument sym_size to warn about symbols which have the incorrect size. This replaces 'ifdef notyet' code which was in several of the md files with a single version. sym_size == 0 means do not check, and symbols of type FUNC are not checked.
2002-08-21Split out MD makefile parts into separate files and doArtur Grabowski
some other cleanup in the Makefile. drahn@ ok.
2002-08-12Add support for REL type relocations, all currently supported archDale Rahn
use only RELA type relocations, but that could change. ok art@
2002-08-11The parameter dynp was never used, rather than pass in a dummy on mostDale Rahn
archs and a nasty calcuation on others, remove the parameter.
2002-08-11Fix for Elfbug, the Xtiherit problem which has been seen on most OpenBSDDale Rahn
ELF dynamic systems. This was due to an oddity in ELF where the address of fuctions refer to the PLT address in the program, rather than the actual function address.
2002-08-09Various fixes.Artur Grabowski
- JMP_SLOT relocations require a symbol lookup (duh). - compress the nops to not dominate the code. - reorder the installation of the pltgot and always install it when possible.
2002-08-09Simplify.Artur Grabowski
2002-08-08- Add some missing iflush'sJason Wright
- insert some nop's to make sure all copies are gone from the icache and CPU
2002-08-08There was a possible off-by-one in ld.so when loading shared libraries.Artur Grabowski
In some (rare?) cases, where the bss was too small and fit entirely into the leftovers of the data segment we could map one extra page. This is slightly dangerous on PMAP_PREFER machines where mmaps allocations do not happen linearly in the virtual space and we could end up overwriting mappings that are already in use. This also changes the initial allocation from being a MAP_ANON to a MAP_FILE so that we can pass the fd as a PMAP_PREFER hint.
2002-07-30knf & ansiTheo de Raadt