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907 Commits

Author SHA1 Message Date
joerg
3490cc6261 Add an explicit note about the search path used by dlopen(3). 2015-07-03 10:19:29 +00:00
yamt
b549d229c6 Fix membars around rtld internal mutex. 
This fixes the most of lockups i observed with Open vSwitch
on NetBSD/amd64.  ("most of" because it still occasionally
locks up because of other problems.  see PR/49816)
 2015-04-06 09:34:15 +00:00
joerg
e0985a06ba lib/49813: Release mutex on error. 2015-04-04 18:51:57 +00:00
matt
32b939b05c Update RISCV to use the ELF relocations and new ABI. 2015-03-27 23:14:53 +00:00
skrll
70289840ad HPPA hack for a problem where gdb doesn't see _rtld_debug_state when 
it's a single bv,n %r0(%rp) instruction.

The nullify confuses something.
 2015-03-05 09:49:53 +00:00
chs
a60c43758e fix powerpc TLS problems by removing the hacks for PPC EABI. 
the kernel no longer treats R2 specially and its use as
the TLS register is now handled entirely in userland.
 2014-12-14 23:49:17 +00:00
martin
2782e828f4 Avoid use after free, reported by the coverity scanner. 2014-10-30 07:53:41 +00:00
matt
463829e46a RISC-V support. 2014-09-19 17:43:33 +00:00
matt
6cf6fe02a9 New files for Userland support of UCB RISC-V (both 32-bit and 64-bit) 2014-09-19 17:36:24 +00:00
matt
27620987b8 New files for OR1K support 2014-09-03 19:34:25 +00:00
matt
00cc626e2f OR1K support 2014-09-03 19:31:32 +00:00
joerg
e4cd9bc4a2 Remove (now duplicated) target computation. 2014-08-31 20:06:22 +00:00
christos
94e1a89978 remove unused define 2014-08-27 04:07:04 +00:00
joerg
c1a71e8076 Restore parenthesis to cast in the right order. 2014-08-26 21:20:05 +00:00
joerg
b88be9f652 Replace casts in the inline version of _rtld_call_function_void of 
_rtld_call_function_addr with ifdef on RTLD_LOADER.
 2014-08-26 19:49:33 +00:00
christos
db25848c17 fix set but not used. 2014-08-26 15:06:50 +00:00
joerg
5d06599748 Go back to skipping init/fini handling for ldd, makes problems for 32bit 
compat on LP64.
 2014-08-26 12:14:14 +00:00
christos
d9972a4666 Introduce a cast to fix the build for Elf32 on _LP64. 2014-08-26 07:54:27 +00:00
joerg
7a1a6f1cf3 Add basic support for indirect functions. It allows providing a public 
function symbol with an implementation choosen at run time.
Refactor calls to functions by address in ld.elf_so to create temporary
function descriptors on the stack, if the address is not leaked outside.

Limitations:
- no support for initialising static storage with function pointers
- no support for unnamed resolver functions

Inspired by FreeBSD's r228435 by kib@freebsd.org.
 2014-08-25 20:40:52 +00:00
joerg
f5cd842d49 Outdated, kill. 2014-08-23 19:18:41 +00:00
joerg
6a83645936 Typo. 2014-08-23 18:05:33 +00:00
matt
5b3354816c Add proper registers for register counts. 2014-08-17 16:57:37 +00:00
matt
d32bdc3217 add a missing register prefix. 2014-08-17 16:14:19 +00:00
matt
30993f706c Use -fPIC since powerpc64 is always compiled as -fPIC and -fpic would cause 
__PIC__ to change.
 2014-08-15 09:40:07 +00:00
joerg
8a961968a8 Build position independent on PPC64, too. 2014-08-13 15:56:52 +00:00
matt
243b0ccea7 Don't provide __gnu_Unwind_Find_exidx if __ARM_DWARF_EH__ is defined 2014-08-10 23:35:26 +00:00
matt
547b3a3b01 Changes to existing files to enable building AARCH64 userland. 
evbarm64-el
This is clang only.  While gcc4.8 supports aarch64, no netbsd support has
been written for aarch64 with gcc4.8.
 2014-08-10 05:56:36 +00:00
matt
beb9c6d1b5 Preliminary files for AARCH64 (64-bit ARM) support. 
Enough for a distribution build.
 2014-08-10 05:47:35 +00:00
matt
154c7bc749 Fix parenthesis on __ha macro 2014-07-28 17:28:13 +00:00
martin
b87a9303be The table of masks applied for each relocation type was wrong for some 
relocs with 64bit targets, like GLOB_DAT.
Change some instruction patterns used for PLT slots, so -current
objdump -d shows what the comment says.
Fix encoding of %lox() in PLT slots "close" to -1.
Enhance debug output slightly.
 2014-04-02 14:11:25 +00:00
matt
a1f21652d9 Make sure r1 is preserved _rtld_bind_start. 2014-03-22 15:13:10 +00:00
matt
e26b436cdb Simplify. If we got called via a calls $n, *pcrel32, instead of constructing 
a new stack frame, back up the PC by 7 and return back to the calls so it
will be reinvoked.  (This is by far the most common way it gets invoked).
Otherwise rebuild a new callframe and jump to the routine.
 2014-03-21 14:03:30 +00:00
matt
bc069d405c Improve some of the rdbg messages to print the address of the pltgot slot 
being modified.
 2014-03-21 01:43:33 +00:00
matt
22fbc67ed0 Don't resolve symbols to PLT entries on the VAX. It just causes a lot of 
overhead.
 2014-03-21 01:40:41 +00:00
joerg
f8bf5bbce0 Save actual start of function, not address of entry mask on the stack. 2014-03-19 21:52:00 +00:00
matt
f71aaf7afb Fix two bugs. (jump past entry mask, fix insv) 2014-03-19 15:34:30 +00:00
matt
db747c73e4 Once we know the bound routine, rebuilt a new callframe that can be unwound 
properly.
 2014-03-19 02:39:22 +00:00
matt
bf06b1032e Add .cfi ops so that one can unwind through this. 2014-03-18 23:43:38 +00:00
riastradh
6cb10275d0 Merge riastradh-drm2 to HEAD. 2014-03-18 18:20:35 +00:00
joerg
47875e291b Ignore LD_BIND_NOW for setuid binaries, but keep it in the environment 
otherwise.
 2014-03-18 16:05:34 +00:00
matt
cdbe3bab4f Change OUTPUT to powerpc:common to make powerpc64 ld happy 2014-03-07 05:57:46 +00:00
matt
9b490ebf92 Make ldd happy 2014-03-07 01:27:14 +00:00
matt
1200e7d3fe More PPC64 changes. 
Nothing to do for lazy bindings.
Record DT_PPC64_GLINK and make _rtld_bind return it.
When resolving a JMP_SLOT, copy the source function descriptor into the PLTGOT
 2014-03-06 19:19:40 +00:00
matt
15089cc505 Enable building ld.elf_so for powerpc 
Produce a link map for ld.elf_so
 2014-03-06 09:34:56 +00:00
matt
565a18129d Make ELF64 aware. 2014-03-06 09:34:07 +00:00
matt
fab57a4af5 powerpc64 changes 2014-03-06 07:47:39 +00:00
matt
746070937f Startup file for powerpc64. (too many difference with ppc32 to do 
#ifdef dance)
 2014-03-06 07:47:19 +00:00
joerg
15f3733bef Catch up with _lwp_park change. 2014-01-31 22:46:40 +00:00
joerg
cb2eb1a336 Don't align random sections. Simplify by using .pushsection/.popsection. 2014-01-12 19:36:08 +00:00
matt
467f6149c3 Don't use GOT relocations. Use PC relative for the GOT and GOTOFF for 
_DYNAMIC.  Make thumb friendly.
 2013-12-03 00:19:56 +00:00