When relocation points to symbol that is not defined within module mark
it as optional. When symbol is available at dynamic linking time then
info from the function is retrieved but when the symbol is not available
then ignore the dependency.
Any unresolved symbol needed for module linking is already handled
in a separate place.
Related-To: NEO-16243, NEO-16263, NEO-16262, NEO-16268
Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>
This is prep work for the future implementation of pooling these allocations.
Related-To: NEO-12287
Signed-off-by: Fabian Zwoliński <fabian.zwolinski@intel.com>
- use correct patched isa segments when transferring isa for builtins to
preserve applied relocations
- do not set requiresImplicitArgs to false for builtins, zebin defines
is implicit arg buffer is required
Related-To: NEO-14667, NEO-15276
Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>
This commit adds support for handling local symbols.
* Added 2 fields to SymbolInfo - binding, and associated
instructions segment id.
* Simplified code for decoding elf symbols and relocations.
* Simplified code for patching instruction segments.
* Changed logic of decodeElfSymbolTableAndRelocations:
* Add every global symbol to symbol map.
* Add any local symbol used by relocation to symbol map.
* Changed logic of link:
* After performing relocations remove local symbols from map.
* Replaced UNRECOVERABLE_IF with returning error.
* Removed LocalSymbolInfo structure used before for local kernel jumps.
* Removed old tests.
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
This commit adds support for parsing SHT_NOBITS zebin's ELF sections
(containing global/constant zero-initialized data).
- Correction: in CTNI path, do not add related symbol if surface has not
been allocated.
Related-To: NEO-7196
Signed-off-by: Kacper Nowak <kacper.nowak@intel.com>
This change replaces mechanism of patching global constants and
variables in kernel per relocation to patching them only once. This
would improve linking time performance for kernels with multiple global
symbols.
Signed-off-by: Luzynski, Sebastian Jozef <sebastian.jozef.luzynski@intel.com>
This commit adds support for 32 bit zebinary in NEO runtime and in
ocloc validate.
Resolves: NEO-7288
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
This commits add support for relocating
symbols with local binding and of functional type
(STB_LOCAL, STT_FUNC).
Related-To: NEO-7299
Signed-off-by: Kacper Nowak <kacper.nowak@intel.com>
feat(zebin): Use addend from RELA sections when performing relocations.
Resolves: NEO-6898
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
This commit removes early fail in linking with zebin and external
functions which happens when, there's a relocation to external functions
section, but it's not modifying any external function. And only treats
GLOBAL FUNC symbols pointing to external functions section as external
function symbols.
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
This change allows for modifying kernel's barrier count
based on called external functions metadata passed
via zeInfo section in zebin.
Added parsing external functions metadata.
Added resolving external functions call graph.
Added updating kernel barriers based on called external functions.
Added support for L0 dynamic link.
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
This commit adds support for querying global pointers via decorated
names passed in zeInfo.
Related-To: NEO-6734
Signed-off-by: Kacper Nowak <kacper.nowak@intel.com>
- add function for resolving builtins using relocations
- add relocation for __SubDeviceID symbol
Related-To: NEO-6258
Signed-off-by: Kamil Diedrich <kamil.diedrich@intel.com>
Support symbols for data relocations.
Remove unused symbolSegment field in RelocationInfo.
Related-To: NEO-5833
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
- Support for L0 apps to handle undefined symbols reported by IGC
- Removed duplication of symbol in exported symbol list and relocation
for properly resolving the symbol during dynamic link
- Add export module's exported function surface state to the import
module's residency container during dynamic linkage to allow import
kernels to execute exported functions.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
- Support for L0 apps to handle undefined symbols reported by IGC
- Removed duplication of symbol in exported symbol list and relocation
for properly resolving the symbol during dynamic link
- Add export module's exported function surface state to the import
module's residency container during dynamic linkage to allow import
kernels to execute exported functions.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
Change LinkerInput::RelocationInfo::Type to be compliant with zebin
relocation types.
Add support for setting relocation type if zebin relocation
type is set.
Continue supporting R_AMD64_64 and R_AMD64_32 relocation types for
backward compatibility
Signed-off-by: Krystian Chmielewski <krystian.chmielewski@intel.com>
Dates corrected in copyright headers to reflect original publication date
(2018 for OpenCL, 2020 for Level Zero).
Signed-off-by: lgotszal <lukasz.gotszald@intel.com>
