kernel/linux.git/tools/objtool/arch/powerpc, branch v6.18.21

Merge tag 'powerpc-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2025-03-28T02:39:08+00:00

Pull powerpc updates from Madhavan Srinivasan: - Remove support for IBM Cell Blades - SMP support for microwatt platform - Support for inline static calls on PPC32 - Enable pmu selftests for power11 platform - Enable hardware trace macro (HTM) hcall support - Support for limited address mode capability - Changes to RMA size from 512 MB to 768 MB to handle fadump - Misc fixes and cleanups Thanks to Abhishek Dubey, Amit Machhiwal, Andreas Schwab, Arnd Bergmann, Athira Rajeev, Avnish Chouhan, Christophe Leroy, Disha Goel, Donet Tom, Gaurav Batra, Gautam Menghani, Hari Bathini, Kajol Jain, Kees Cook, Mahesh Salgaonkar, Michael Ellerman, Paul Mackerras, Ritesh Harjani (IBM), Sathvika Vasireddy, Segher Boessenkool, Sourabh Jain, Vaibhav Jain, and Venkat Rao Bagalkote. * tag 'powerpc-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (61 commits) powerpc/kexec: fix physical address calculation in clear_utlb_entry() crypto: powerpc: Mark ghashp8-ppc.o as an OBJECT_FILES_NON_STANDARD powerpc: Fix 'intra_function_call not a direct call' warning powerpc/perf: Fix ref-counting on the PMU 'vpa_pmu' KVM: PPC: Enable CAP_SPAPR_TCE_VFIO on pSeries KVM guests powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7 powerpc/microwatt: Add SMP support powerpc: Define config option for processors with broadcast TLBIE powerpc/microwatt: Define an idle power-save function powerpc/microwatt: Device-tree updates powerpc/microwatt: Select COMMON_CLK in order to get the clock framework net: toshiba: Remove reference to PPC_IBM_CELL_BLADE net: spider_net: Remove powerpc Cell driver cpufreq: ppc_cbe: Remove powerpc Cell driver genirq: Remove IRQ_EDGE_EOI_HANDLER docs: Remove reference to removed CBE_CPUFREQ_SPU_GOVERNOR powerpc: Remove UDBG_RTAS_CONSOLE powerpc/io: Use standard barrier macros in io.c powerpc/io: Rename _insw_ns() etc. powerpc/io: Use generic raw accessors ...

objtool: Handle different entry size of rodata

2025-03-12T22:43:38+00:00

In the most cases, the entry size of rodata is 8 bytes because the relocation type is 64 bit. There are also 32 bit relocation types, the entry size of rodata should be 4 bytes in this case. Add an arch-specific function arch_reloc_size() to assign the entry size of rodata for x86, powerpc and LoongArch. Signed-off-by: Tiezhu Yang Link: https://lore.kernel.org/r/20250211115016.26913-3-yangtiezhu@loongson.cn Acked-by: Huacai Chen Signed-off-by: Josh Poimboeuf

objtool/powerpc: Add support for decoding all types of uncond branches

2025-02-26T15:39:43+00:00

Add support for 'bla' instruction. This is done by 'flagging' the address as an absolute address so that arch_jump_destination() can calculate it as expected. Because code is _always_ 4 bytes aligned, use bit 30 as flag. Also add support for 'b' and 'ba' instructions. Objtool call them jumps. And make sure the special 'bl .+4' used by clang in relocatable code is not seen as an 'unannotated intra-function call'. clang should use the special 'bcl 20,31,.+4' form like gcc but for the time being it does not so lets work around that. Link: https://github.com/llvm/llvm-project/issues/128644 Reviewed-by: Segher Boessenkool Signed-off-by: Christophe Leroy Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/bf0b4d554547bc34fa3d1af5b4e62a84c0bc182b.1740470510.git.christophe.leroy@csgroup.eu

objtool: Allow arch code to discover jump table size

2024-12-02T11:24:29+00:00

In preparation for adding support for annotated jump tables, where ELF relocations and symbols are used to describe the locations of jump tables in the executable, refactor the jump table discovery logic so the table size can be returned from arch_find_switch_table(). Signed-off-by: Ard Biesheuvel Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/20241011170847.334429-12-ardb+git@google.com

objtool: Add elf_create_section_pair()

2023-06-07T17:03:17+00:00

When creating an annotation section, allocate the reloc section data at the beginning. This simplifies the data model a bit and also saves memory due to the removal of malloc() in elf_rebuild_reloc_section(). With allyesconfig + CONFIG_DEBUG_INFO: - Before: peak heap memory consumption: 53.49G - After: peak heap memory consumption: 49.02G Link: https://lore.kernel.org/r/048e908f3ede9b66c15e44672b6dda992b1dae3e.1685464332.git.jpoimboe@kernel.org Signed-off-by: Josh Poimboeuf

objtool: Change arch_decode_instruction() signature

2023-02-23T08:20:50+00:00

In preparation to changing struct instruction around a bit, avoid passing it's members by pointer and instead pass the whole thing. A cleanup in it's own right too. Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Acked-by: Josh Poimboeuf Tested-by: Nathan Chancellor # build only Tested-by: Thomas Weißschuh # compile and run Link: https://lore.kernel.org/r/20230208172245.291087549@infradead.org

objtool/powerpc: Implement arch_pc_relative_reloc()

2022-11-23T10:26:10+00:00

Provide an implementation for arch_pc_relative_reloc(). It is needed to pass the build once 61c6065ef7ec ("objtool: Allow !PC relative relocations") is merged. Signed-off-by: Michael Ellerman

objtool/powerpc: Add --mcount specific implementation

2022-11-18T08:00:16+00:00

This patch enables objtool --mcount on powerpc, and adds implementation specific to powerpc. Tested-by: Naveen N. Rao Reviewed-by: Naveen N. Rao Reviewed-by: Christophe Leroy Acked-by: Josh Poimboeuf Signed-off-by: Sathvika Vasireddy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20221114175754.1131267-17-sv@linux.ibm.com

objtool/powerpc: Enable objtool to be built on ppc

2022-11-18T08:00:16+00:00

This patch adds [stub] implementations for required functions, inorder to enable objtool build on powerpc. [Christophe Leroy: powerpc: Add missing asm/asm.h for objtool, Use local variables for type and imm in arch_decode_instruction(), Adapt len for prefixed instructions.] Tested-by: Naveen N. Rao Reviewed-by: Naveen N. Rao Acked-by: Josh Poimboeuf Signed-off-by: Sathvika Vasireddy Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20221114175754.1131267-16-sv@linux.ibm.com