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* backends: Handle new RISC-V specific definitionsAndreas Schwab2022-08-091-0/+4
| | | | | | Handle PT_RISCV_ATTRIBUTES, SHT_RISCV_ATTRIBUTES, DT_RISCV_VARIANT_CC. Signed-off-by: Andreas Schwab <schwab@suse.de>
* RISC-V: PR27925 Add support for LP64 and LP64F ABIs return valuesWilliam Cohen2021-09-301-4/+17
| | | | | | | | | | | | The RISC-V Linux kernel is compiled without floating point (the LP64 ABI) and elfutils could not obtain return value locations for functions in the kernel. This issue was noticed when Systemtap generated RISC-V kernel modules for scripts that used $return target variables in function return probes. This patch adds the needed support to provide return value information for the LP64 and LP64F ABIs. Signed-off-by: William Cohen <wcohen@redhat.com>
* libebl: Remove Ebl struct size check and MODVERSION string.Mark Wielaard2020-06-101-8/+3
| | | | | | | | | | | | | | | | We used to do several sanity checks when the ebl backend libraries were loaded to make sure there was no version mismatch. When initializing the backend we passed the current Ebl struct size so the library could check it supported the given Ebl struct and we checked that the init method returned the correct build time module version string. Neither are necessary now that the backends are builtin. Remove both the struct size check and the MODVERSION string (which wasn't actually checked anymore). Make the init function return the given Ebl handle or NULL on error (no init function currently indicates any error). Signed-off-by: Mark Wielaard <mark@klomp.org>
* Implement RISC-V disassemblerUlrich Drepper2019-09-061-0/+1
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* libdwelf: Add dwelf_elf_e_machine_string and use it in readelf.Mark Wielaard2019-07-101-1/+0
| | | | | | | | | | | | | | | | To print eh human readable description of the ELF e_machine header field we used the ebl name. But this is not set for most EM constants. Introduce a new function dwelf_elf_e_machine_string that does work for all known EM values. Use that in eu-readelf to print a string representation of the e_machine value. Since this was the only usage of ebl->name, remove that from struct ebl. Also add a testcase that makes sure dwelf_elf_e_machine_string works for all EM values in the libelf/elf.h header so we will immediately notice when a new value appears. Signed-off-by: Mark Wielaard <mark@klomp.org>
* RISC-V: Add untested 32-bit core file support.Jim Wilson2019-01-131-1/+6
| | | | | | | | Adds 32-bit support exactly the same way that the sparc backend handles 32- and 64-bit core file support. The 64-bit core file support was tested and still works same as before. Signed-off-by: Jim Wilson <jimw@sifive.com>
* RISC-V: Add initial return value location support.Jim Wilson2019-01-101-1/+9
| | | | | | | | | | Started with the aarch64 support and modified it for RISC-V. The flattened structure support hasn't been written yet, but the rest of it should be correct for the LP64D ABI. We have potentially 6 different ABIs to support, so this requires checking elf header flags in riscv_init when setting the hook. Signed-off-by: Jim Wilson <jimw@sifive.com>
* backends: add core_note callback for RISC-VAndreas Schwab2018-07-171-0/+1
| | | | Signed-off-by: Andreas Schwab <schwab@suse.de>
* backends: add set_initial_registers_tid callback for RISC-VAndreas Schwab2018-07-131-0/+1
| | | | | | | This fixes the backtrace-dwarf and deleted tests, and lets backtrace-native run a bit further. Signed-off-by: Andreas Schwab <schwab@suse.de>
* backends: add abi_cfi and register_info callbacks for RISC-VAndreas Schwab2018-06-201-0/+4
| | | | | | | | From https://github.com/riscv/riscv-isa-manual/raw/master/release/riscv-spec-v2.2.pdf and GCC source. Signed-off-by: Andreas Schwab <schwab@suse.de>
* backends: add checks for _GLOBAL_OFFSET_TABLE_ and __global_pointer$ on riscvAndreas Schwab2018-05-151-0/+1
| | | | Signed-off-by: Andreas Schwab <schwab@suse.de>
* Add support for RISC-VAndreas Schwab2018-04-231-0/+57
This implements initial support for the RISC-V architecture. It has been tested with qemu linux-user emulation <https://build.opensuse.org/package/live_build_log/openSUSE:Factory:RISCV/elfutils/standard/riscv64>, with the following unresolved issues FAIL: run-strip-strmerge.sh =========================== elflint /home/abuild/rpmbuild/BUILD/elfutils-0.170/tests/elfstrmerge section [32] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x51c0 does not match .got section address 0x5010 section [32] '.symtab': symbol 119: st_value out of bounds FAIL run-strip-strmerge.sh (exit status: 1) FAIL: run-elflint-self.sh ========================= section [33] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x6220 does not match .got section address 0x6008 section [33] '.symtab': symbol 135: st_value out of bounds *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/addr2line section [33] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x91d8 does not match .got section address 0x9040 section [33] '.symtab': symbol 163: st_value out of bounds *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elfcmp section [33] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x1a2a0 does not match .got section address 0x1a040 section [33] '.symtab': symbol 267: st_value out of bounds *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint section [33] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0xd418 does not match .got section address 0xd0f0 section [33] '.symtab': symbol 238: st_value out of bounds *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/nm section [33] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0xa2d0 does not match .got section address 0xa0b0 section [33] '.symtab': symbol 193: st_value out of bounds *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/objdump section [33] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x2e5b8 does not match .got section address 0x2e058 section [33] '.symtab': symbol 410: st_value out of bounds *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/readelf section [32] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x171b8 does not match .got section address 0x17010 *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/libelf/libelf.so section [32] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x3a5b0 does not match .got section address 0x3a0d8 *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/libdw/libdw.so section [31] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0xd0c8 does not match .got section address 0xd008 *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/backends/libebl_i386.so section [31] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0xf0c8 does not match .got section address 0xf008 *** failure in /home/abuild/rpmbuild/BUILD/elfutils-0.170/src/elflint --quiet --gnu-ld /home/abuild/rpmbuild/BUILD/elfutils-0.170/backends/libebl_x86_64.so FAIL run-elflint-self.sh (exit status: 1) FAIL: run-native-test.sh ======================== /home/abuild/rpmbuild/BUILD/elfutils-0.170/tests/allregs: dwfl_module_register_names: no backend registers known FAIL run-native-test.sh (exit status: 1) FAIL: run-backtrace-native-core.sh ================================== backtrace: backtrace.c:111: callback_verify: Assertion `symname && strcmp (symname, "raise") == 0' failed. ./test-subr.sh: line 84: 26040 Aborted (core dumped) LD_LIBRARY_PATH="${built_library_path}${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH" $VALGRIND_CMD "$@" backtrace-child-core.26027: no main rmdir: failed to remove 'test-26016': Directory not empty FAIL run-backtrace-native-core.sh (exit status: 1) In addition, all tests that use ptrace are failing as linux-user emulation does not implement it. There are no regressions for a x86_64 build. Signed-off-by: Andreas Schwab <schwab@suse.de>
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