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* aarch64: Add NT_ARM_PAC_* regsetKuan-Ying Lee2024-08-301-0/+9
| | | | | | | Add the NT_ARM_PAC_MASK and NT_ARM_PAC_ENABLED_KEYS for aarch64. Recognize and print the new core item. Signed-off-by: Kuan-Ying Lee <[email protected]>
* libdwfl, aarch64: Read PAC mask from coreSteve Capper2024-08-301-2/+15
| | | | | | | | | | We need to read the PAC mask from a core file when debugging offline as the information is still needed to demangle return addresses. This commit pulls out the NT_ARM_PAC_MASK info from the core and feeds it through to dwfl_thread_state_registers for each thread. Signed-off-by: Steve Capper <[email protected]>
* libdwfl, aarch64: extend dwfl_thread_state_registers to handle PACSteve Capper2024-08-301-0/+10
| | | | | | | | | | | | | | | | | On AArch64 systems with pointer authentication enabled, one needs to know the PAC mask in order to unwind functions that employ PAC. This patch extends dwfl_thread_state_registers to handle the PAC mask information by introducing a special register -2. (-1 is used in a similar manner already for handling the program counter). The AArch64 linux process attach logic is also extended to query ptrace for the PAC mask. A subsequent patch will add support for retrieving the PAC mask from an AArch64 linux core file. Signed-off-by: Steve Capper <[email protected]>
* aarch64: Create definitions for AARCH64_RA_SIGN_STATE registerGerman Gomez2024-08-302-1/+6
| | | | | | | | | | | This register will be used to indicate whether a return address is mangled with a PAC or not, in accordance with the DWARF AARCH64 ABI [1]. [1] https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst#41dwarf-register-names Signed-off-by: German Gomez <[email protected]> [SteveC: move DW_AARCH64_RA_SIGN_STATE to cfi.h, fix comments] Signed-off-by: Steve Capper <[email protected]>
* aarch64: Add NT_ARM_TAGGED_ADDR_CTRL regsetKuan-Ying Lee2024-08-171-1/+10
| | | | | | | Add the NT_ARM_TAGGED_ADDR_CTRL regset for aarch64. Recognize and print this new core itme. Signed-off-by: Kuan-Ying Lee <[email protected]>
* backends/riscv: Remove unused relocationsAndreas Schwab2024-08-071-7/+0
| | | | | | | | | | | None of these relocations were ever part of any object file. The GNU_VTINHERIT and GNU_VTINHERIT relocations were part of the obsolete --gc-sections support which was never implemented for RISC-V. The other relocations are only used internally by libbfd during the relaxation pass and eliminated before writing the object file. * riscv_reloc.def: Remove GNU_VTINHERIT, GNU_VTENTRY, RVC_LUI, GPREL_I, GPREL_S, TPREL_I, TPREL_S.
* backends: allocate enough stace for null terminatorSergei Trofimovich2024-07-182-2/+17
| | | | | | | | | | | | | | | | | | | `gcc-15` added a new warning in https://gcc.gnu.org/PR115185: i386_regs.c:88:11: error: initializer-string for array of 'char' is too long [-Werror=unterminated-string-initialization] 88 | "ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip" | ^~~~ `elfutils` does not need to store '\0'. We could either initialize the arrays with individual bytes or allocate extra byte for null. This change initializes the array bytewise. * backends/i386_regs.c (i386_register_info): Initialize the array bytewise to fix gcc-15 warning. * backends/x86_64_regs.c (x86_64_register_info): Ditto. Signed-off-by: Sergei Trofimovich <[email protected]>
* backends: Add register_info, return_value_location, core_note on mipsYing Huang2024-04-055-1/+421
| | | | | | | | | | | | * backends/Makefile.am (mips_SRCS): Add mips_regs.c, mips_retval.c and mips_corenote.c. * backends/mips_init.c (mips_init): HOOK register_info, return_value_location and core_note. * backends/mips_corenote.c: New file. * backends/mips_regs.c: Likewise. * backends/mips_retval.c: Likewise. Signed-off-by: Ying Huang <[email protected]>
* stack: Fix stack unwind failure on mipsYing Huang2024-04-055-1/+219
| | | | | | | | | | | | | | Add abi_cfi, set_initial_registers_tid, unwind on mips. * backends/Makefile.am (mips_SRCS): Add mips_initreg.c, mips_cfi.c and mips_unwind.c. * backends/mips_init.c (mips_init): HOOK abi_cfi, unwind and set_initial_registers_tid. Set frame_nregs to 71. * backends/mips_cfi.c: New file. * backends/mips_initreg.c: Likewise. * backends/mips_unwind.c: Likewise. Signed-off-by: Ying Huang <[email protected]>
* Hexagon: implement machine flag checkMatheus Tavares Bernardino2024-04-042-0/+8
| | | | | | | | | | | | | This fixes the "invalid machine flag" error from eu-elflint when passing hexagon binaries. * backends/hexagon_init.c (hexagon_init): Hook machine_flag_check * backends/hexagon_symbol.c (hexagon_machine_flag_check): new function * libelf/elf-knowledge.h: add EF_HEXAGON_TINY constant Signed-off-by: Matheus Tavares Bernardino <[email protected]>
* Add support for HexagonMatheus Tavares Bernardino2024-04-044-2/+244
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements initial support for the Hexagon architecture. The Hexagon ABI spec can be seen at https://lists.llvm.org/pipermail/llvm-dev/attachments/20190916/21516a52/attachment-0001.pdf A hello_hexagon.ko test is also added. $ head tests/test-suite.log [...] # TOTAL: 275 # PASS: 269 # SKIP: 6 # XFAIL: 0 # FAIL: 0 # XPASS: 0 # ERROR: 0 $ cat tests/run-strip-reloc-ko.sh.log [...] runtest hello_hexagon.ko PASS run-strip-reloc-ko.sh (exit status: 0) * backends/Makefile.am (modules): Add hexagon. (hexagon_SRCS): New var for hexagon_init.c and hexagon_symbol.c. (libebl_backends_a_SOURCES): Add hexagon_SRCS. * backends/hexagon_init.c: New file. * backends/hexagon_reloc.def: Likewise. * backends/hexagon_symbol.c: Likewise. * libebl/eblopenbackend.c (hexagon_init): Declare. (machines): Add hexagon. * libelf/elf-knowledge.h: Add hexagon e_flags values, section indices and and relocs. * src/elflint.c (valid_e_machine): Add EM_QDSP6. * tests/Makefile.am (EXTRA_DIST): Add hello_hexagon.ko.bz2. * tests/hello_hexagon.ko.bz2: New test file. * tests/run-strip-reloc-ko.sh: Add hello_hexagon.ko. Signed-off-by: Matheus Tavares Bernardino <[email protected]>
* Support Mips architectureYing Huang2024-03-294-2/+212
| | | | | | | | | | | | | | * backends/Makefile.am (modules): Add mips. (mips_SRCS): New var for mips_init.c mips_symbol.c. (libebl_backends_a_SOURCES): Add mips_SRCS. * backends/mips_init.c: New file. * backends/mips_reloc.def: Likewise. * backends/mips_symbol.c: Likewise. * libebl/eblopenbackend.c (mips_init): Declare. (machines): Add mips. * libelf/libelfP.h: Add ELF64_MIPS_R_TYPE{1,2,3} Signed-off-by: Ying Huang <[email protected]>
* riscv: Partial implementation of flatten_aggregateMark Wielaard2024-03-201-11/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dwfl_module_return_value_location would fail on riscv for functions which return a (small) struct. This patch implements the simplest cases of flatten_aggregate in backends/riscv_retval.c. It just handles structs containing one or two members of the same base type which fit completely or in pieces in one or two general or floating point registers. It also adds a specific test case run-funcretval-struct.sh containing small structs of ints, longs, floats and doubles. All these testscases now work for riscv. There is already a slightly more extensive testcase for this in tests/run-funcretval.sh but that only has a testcase for aarch64. * backends/riscv_retval.c (flatten_aggregate_arg): Implement for the simple cases where we have a struct with one or two members of the same base type. (pass_by_flattened_arg): Likewise. Call either pass_in_gpr_lp64 or pass_in_fpr_lp64d. (riscv_return_value_location_lp64ifd): Call flatten_aggregate_arg including size. * tests/Makefile.am (TESTS): Add run-funcretval-struct.sh and run-funcretval-struct-native.sh. (check_PROGRAMS): Add funcretval_test_struct. (funcretval_test_struct_SOURCES): New. (EXTRA_DIST): Add run-funcretval-struct.sh, funcretval_test_struct_riscv.bz2 and run-funcretval-struct-native.sh. * tests/funcretval_test_struct_riscv.bz2: New test binary. * tests/run-funcretval-struct-native.sh: New test. * tests/run-funcretval-struct.sh: Likewise. https://sourceware.org/bugzilla/show_bug.cgi?id=31142 Signed-off-by: Mark Wielaard <[email protected]>
* backends: Update list of LoongArch relocationsXi Ruoyao2024-02-241-0/+17
| | | | Signed-off-by: Xi Ruoyao <[email protected]>
* backends: Fix arm_machine_flag_name version string.Mark Wielaard2023-11-131-1/+1
| | | | | | | | | | | | | arm_machine_flag_name checks the version byte and if not zero returns a version string. There are only 5 versions defined. So check the version byte is not larger. * backends/arm_machineflagname.c (arm_machine_flag_name): Check version <= 0, otherwise return NULL. https://sourceware.org/bugzilla/show_bug.cgi?id=31058 Signed-off-by: Mark Wielaard <[email protected]>
* backends: Update list of LoongArch relocationsXi Ruoyao2023-08-291-0/+9
| | | | | | | * backends/loongarch_reloc.def: Add DELETE, ALIGN, PCREL20_S2, CFA, ADD6, SUB6, ADD_ULEB128, SUB_ULEB128, 64_PCREL. Signed-off-by: Xi Ruoyao <[email protected]>
* backends: Update list of RISC-V relocationsAndreas Schwab2023-06-271-0/+4
| | | | | | | * backends/riscv_reloc.def: Add IRELATIVE, PLT32, SET_ULEB128, SUB_ULEB128. Signed-off-by: Andreas Schwab <[email protected]>
* backends: Add set_initial_registers_tid callback for LoongArchYouling Tang2023-05-094-1/+96
| | | | | | | This patch implements the set_initial_registers_tid hook for LoongArch. Signed-off-by: Liwei Ge <[email protected]> Signed-off-by: Youling Tang <[email protected]>
* backends: Add core_note callback for LoongArchYouling Tang2023-05-094-1/+122
| | | | Signed-off-by: Youling Tang <[email protected]>
* backends: Add frame pointer unwinding for LoongArchYouling Tang2023-05-094-1/+93
| | | | | | | | | | | If we don't find any debug information for a given frame, we usually cannot unwind any further. However, the binary in question might have been compiled with frame pointers, in which case we can look up the well known frame pointer locations in the stack snapshot and use them to bridge the frames without debug information. Signed-off-by: Liwei Ge <[email protected]> Signed-off-by: Youling Tang <[email protected]>
* backends: Add initial return value location support for LoongArchYouling Tang2023-05-094-1/+212
| | | | | | | | LoongArch ELF ABI specification - Return values: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_return_values Signed-off-by: Liwei Ge <[email protected]> Signed-off-by: Youling Tang <[email protected]>
* backends: Add abi_cfi and register_info callbacks for LoongArchYouling Tang2023-05-095-2/+238
| | | | | | | | | | | LoongArch Reference Manual - Volume 1: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html LoongArch ELF ABI: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html Signed-off-by: Liwei Ge <[email protected]> Signed-off-by: Youling Tang <[email protected]>
* backends: Check results for NULL early in dwarf_peeled_die_typeMark Wielaard2023-04-141-3/+3
| | | | | | | | | | | Calling dwarf_peeled_die_type with a NULL results pointer is an error, check early that result is not NULL so dwarf_formref_die and dwarf_peel_type won't try to set the NULL Dwarf_Die. * backends/libebl_CPU.h (dwarf_peeled_die_type): Move check for results == NULL to start of function. Signed-off-by: Mark Wielaard <[email protected]>
* backends: add checks for _GLOBAL_OFFSET_TABLE_ on loongarchYouling Tang2023-04-073-0/+41
| | | | | | | | | | | | | | | | Add handling of _GLOBAL_OFFSET_TABLE_. Before applying the patch: $ ./src/elflint --gnu-ld ./src/elflint section [35] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x68548 does not match .got.plt section address 0x68238 After applying the patch: $ ./src/elflint --gnu-ld ./src/elflint No errors Signed-off-by: Liwei Ge <[email protected]> Signed-off-by: Youling Tang <[email protected]>
* backends: Add new relocation type handling for LoongArchYouling Tang2023-04-072-0/+44
| | | | | | Add new relocation type handling. Signed-off-by: Youling Tang <[email protected]>
* LoongArch: implemented a basic machine flag checkAlexey Sheplyakov2023-03-202-0/+8
| | | | | | | | | | | | | | | | | | | | With this patch I can use eu-elflint to verify LoongArch ELF binaries. Previously eu-elflint was complaining about invalid machine flags: $ ./src/elflint --gnu-ld ./src/elflint invalid machine flags: 0x43 $ echo $? 1 * backends/loongarch_symbol.c (loongarch_init): Hook machine_flag_check. * backends/loongarch_symbol.c (loongarch_machine_flag_check): New function. https://sourceware.org/bugzilla/show_bug.cgi?id=30251 Signed-off-by: Alexey Sheplyakov <[email protected]>
* backends: Handle DW_TAG_unspecified_type in dwarf_peeled_die_typeMark Wielaard2023-02-142-2/+17
| | | | | | | | | | | | | | | | binutils 2.40 introduces DW_TAG_unspecified_type for assembly functions with an unknown return type. This breaks the run-funcretval.sh testcase because dwfl_module_return_value_location returns an error for such functions because it cannot determine the return value location. Fix that by treating DW_TAG_unspecified_type as if the DIE doesn't have a DW_AT_type. Also update the testcase to explicitly checking for DW_TAG_unspecified_type and printing "returns unspecified type". https://sourceware.org/bugzilla/show_bug.cgi?id=30047 Signed-off-by: Mark Wielaard <[email protected]>
* backends: Support returning lvalue and rvalue referencesIlya Leoshkevich2023-02-1414-40/+42
| | | | | | | | | On the low level, they are the same as pointers. The change needs to be done for all backends, so define a function and a macro to avoid repetition. Also add a native test, which has to be implemented in C++. Add the configure check for it. Signed-off-by: Ilya Leoshkevich <[email protected]>
* Initialize reglocs for VMCOREINFOIlya Leoshkevich2023-02-081-0/+1
| | | | | | | | | | | | | | | | | MSan complains: Uninitialized value was created by an allocation of 'reglocs' in the stack frame #0 0x562d35c686f0 in handle_core_note elfutils/src/readelf.c:12674:3 #const Ebl_Register_Location *reglocs; ==1006199==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0x562d35c68a2a in handle_core_note elfutils/src/readelf.c:12692:11 #colno = handle_core_registers (ebl, ebl->elf, desc + regs_offset, # reglocs, nregloc); Strictly speaking, this is not a problem, because nregloc == 0, but for other note types we initialize it anyway, so do it here as well. Signed-off-by: Ilya Leoshkevich <[email protected]>
* backends: sparc uses NONE relocation type in ET_EXEC and ET_DYN filesMark Wielaard2023-01-192-1/+5
| | | | | | | | | Using the NONE relocation doesn't do anything, but is harmless. This fixes several (self) tests on sparc that use elflint to check files are valid ELF. Signed-off-by: Mark Wielaard <[email protected]>
* Add support for Synopsys ARCv2 processorsShahab Vahedi2022-12-225-2/+240
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no regression in tests for an x86_64 build, while the new hello_arc_hs4.ko is added as well. This is the only meaningful test that I could add at the moment, given the features supported by this port. $ cat tests/test-suite.log ========================================== elfutils 0.188: tests/test-suite.log ========================================== # TOTAL: 236 # PASS: 235 # SKIP: 1 # XFAIL: 0 # FAIL: 0 # XPASS: 0 # ERROR: 0 .. contents:: :depth: 2 SKIP: run-lfs-symbols.sh ======================== LFS testing is irrelevant on this system SKIP run-lfs-symbols.sh (exit status: 77) $ cat tests/run-strip-reloc.sh.log runtest hello_i386.ko runtest hello_x86_64.ko runtest hello_ppc64.ko runtest hello_s390.ko runtest hello_aarch64.ko runtest hello_m68k.ko runtest hello_riscv64.ko runtest hello_csky.ko runtest hello_arc_hs4.ko <-- [ new ARC HS4 test ] runtest /home/shahab/pahole_pkg/elfutils-git/bld_arc/src/strip runtest /home/shahab/pahole_pkg/elfutils-git/bld_arc/src/strip.o runtest strip-uncompressed.o runtest strip-compressed.o runtest testfile-debug-rel-ppc64.o runtest testfile-debug-rel-ppc64-z.o runtest testfile-debug-rel-ppc64-g.o PASS run-strip-reloc.sh (exit status: 0) Signed-off-by: Shahab Vahedi <[email protected]>
* Add support for LoongArchHengqi Chen2022-12-195-2/+217
| | | | | | This implements initial support for the LoongArch architecture. Signed-off-by: Hengqi Chen <[email protected]>
* backends: Handle new RISC-V specific definitionsAndreas Schwab2022-08-093-0/+58
| | | | | | Handle PT_RISCV_ATTRIBUTES, SHT_RISCV_ATTRIBUTES, DT_RISCV_VARIANT_CC. Signed-off-by: Andreas Schwab <[email protected]>
* Arm Ehdr flag printingUlrich Drepper2022-06-064-1/+165
| | | | | | | | | | | | | | | | | | Arm needs to decode flags and I modeled it after the binutils code. The same messages are printed. Given the requirement of the interface and the ABIs the current version of the callback function isn't sufficient unless one wants to create a stateful interface. The problem is that most flags need to be interpreted in the context of the ABI version. So I changed the API to also pass the original flag value. This shouldn't be a problem because there are no users yet. There is also a bug in ebl_machine_flag_name. When copying the string provided by the callback cp is moved past the NUL byte. It should move to the NUL byte. Otherwise one cannot anything but the first added flag description. Finally some cosmetic changes (space after each comma in the output). Signed-off-by: Mark Wielaard <[email protected]>
* backends: Use PTRACE_GETREGSET for ppc_set_initial_registers_tidMark Wielaard2022-02-162-25/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code in ppc_initreg.c used PTRACE_PEEKUSER to fetch all registers one by one. Which is slightly inefficient. It did this because it wanted things to work on linux 2.6.18 which didn't support PTRACE_GETREGSET. PTRACE_GETREGSET was only officially since 2.6.34 (but backported to some earlier versions). It seems ok to require a linux kernel that supports PTRACE_GETREGSET now. This is much more efficient since it takes just one ptrace call instead of 44 calls to fetch each register individually. For some really old versions we need to include <linux/ptrace.h> to get PTRACE_GETREGSET defined. And on ppc64 there is no 32bit version of struct pt_regs available, so we define that ourselves and check how much data is returned to know whether this is a full pt_regs or one for a 32bit process. An alternative would be to use the raw iov_base bytes with 64bit or 32bit offset constants to get at the registers instead of using a struct with names. The code works for inspecting a 32bit process from a 64bit build, but not the other way around (the previous code also didn't). This could work if we also defined and used a 64bit pt_regs struct on ppc32. But it seems a use case that is not really used (it was hard enough finding ppc32 setups to test this on). Tested against ppc and ppc64 on linux 2.6.32 and glibc 2.12 and ppc and ppc64 on linux 3.10.0 with glibc 2.17. Signed-off-by: Mark Wielaard <[email protected]>
* RISC-V: PR27925 Add support for LP64 and LP64F ABIs return valuesWilliam Cohen2021-09-303-16/+104
| | | | | | | | | | | | 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 <[email protected]>
* Come up with startswith function.Martin Liska2021-05-123-2/+11
| | | | | | | New function in system.h that returns true if a string has a given prefix, false otherwise. Use it in place of strncmp. Signed-off-by: Martin Liška <[email protected]>
* backends/ppc_initreg.c: include <asm/ptrace.h>.Érico Rolim2021-02-052-0/+5
| | | | | | | Necessary on musl for struct pt_regs definition, doesn't affect the build on glibc, since <sys/user.h> includes the same header. Signed-off-by: Érico Rolim <[email protected]>
* backends: fix spelling typos in commentsDmitry V. Levin2020-12-123-2/+8
| | | | | | | adress -> address sigle -> single Signed-off-by: Dmitry V. Levin <[email protected]>
* backends: Handle SHT_X86_64_UNWIND as valid relocation target type.Mark Wielaard2020-11-173-0/+14
| | | | | | | | | The x86_64 abi defines a special section type for .eh_frame[_hdr], SHT_X86_64_UNWIND, which is a valid relocation target type. https://sourceware.org/bugzilla/show_bug.cgi?id=26878 Signed-off-by: Mark Wielaard <[email protected]>
* backends: Remove tilegx backend.Mark Wielaard2020-10-268-584/+14
| | | | | | | | Support for the Tilera TILE-Gx processor has been removed or deprecated in gcc and binutils already. There are no users and there is no way to test it. Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Remove unused ebl_syscall_abi.Mark Wielaard2020-10-269-160/+15
| | | | | | | | | GCC11 -Warray-parameter warned about ebl_syscall_abi being inconsistently declared (once with a pointer to int, once with an array of 6 int elements). Since ebl_syscall_abi isn't actually used and was only implemented for 3 backends without any tests just remove it. Signed-off-by: Mark Wielaard <[email protected]>
* backends: Implement aarch64_dynamic_tag_name and aarch64_dynamic_tag_checkMark Wielaard2020-09-073-0/+35
| | | | Signed-off-by: Mark Wielaard <[email protected]>
* backends: Make the reloc_nametable zero element an one char array.Mark Wielaard2020-06-192-3/+9
| | | | | | | | We are using the reloc_nametable zero element as an char array. So make that element an actual array (we are actually after one of the next string arrays in the table). Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Remove Ebl struct size check and MODVERSION string.Mark Wielaard2020-06-1018-129/+69
| | | | | | | | | | | | | | | | 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 <[email protected]>
* Implement RISC-V disassemblerUlrich Drepper2019-09-061-0/+1
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* Don't use dlopen() for libebl modulesOmar Sandoval2019-08-292-80/+21
| | | | | | | | | | | | Currently, architecture-specific code for libebl exists in separate libebl_$ARCH.so libraries which libebl loads with dlopen() at runtime. This makes it impossible to have standalone, statically-linked binaries which use libdwfl if they depend on any architecture-specific functionality. Additionally, when these libraries cannot be found, the failure modes are non-obvious. So, let's get rid of libebl_$arch.so and move it all into libdw.so/libdw.a, which simplifies things considerably. Signed-off-by: Omar Sandoval <[email protected]>
* Add PIC and non-PIC variants of libcpu and libeblOmar Sandoval2019-08-282-1/+2
| | | | | | | | | Currently, libcpu and libebl are always compiled as PIC. An upcoming change will add the objects from libcpu.a and libebl.a to libdw.a, which should not be PIC unless configured that way. So, make libcpu.a and libebl.a non-PIC and add libcpu_pic.a and libebl_pic.a. Signed-off-by: Omar Sandoval <[email protected]>
* libcpu: merge libcpu_{i386,x86_64,bpf} into one libraryOmar Sandoval2019-08-282-9/+7
| | | | | | | In preparation for combining the libebl backend modules, combine all of the libcpu backends into libcpu.a. Signed-off-by: Omar Sandoval <[email protected]>
* Add backend support for C-SKYMao Han2019-07-1710-2/+623
| | | | | | | | | C-SKY V2 ABI manual: https://github.com/c-sky/csky-doc/blob/master/C-SKY_V2_CPU_Applications_Binary_Interface_Standards_Manual.pdf C-SKY architecture user guide: https://github.com/c-sky/csky-doc/blob/master/CSKY%20Architecture%20user_guide.pdf Signed-off-by: Mao Han <[email protected]>
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