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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /tools/objtool/arch/powerpc | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'tools/objtool/arch/powerpc')
| -rw-r--r-- | tools/objtool/arch/powerpc/Build | 2 | ||||
| -rw-r--r-- | tools/objtool/arch/powerpc/decode.c | 153 | ||||
| -rw-r--r-- | tools/objtool/arch/powerpc/include/arch/cfi_regs.h | 11 | ||||
| -rw-r--r-- | tools/objtool/arch/powerpc/include/arch/elf.h | 13 | ||||
| -rw-r--r-- | tools/objtool/arch/powerpc/include/arch/special.h | 21 | ||||
| -rw-r--r-- | tools/objtool/arch/powerpc/special.c | 25 |
6 files changed, 225 insertions, 0 deletions
diff --git a/tools/objtool/arch/powerpc/Build b/tools/objtool/arch/powerpc/Build new file mode 100644 index 000000000..d24d5636a --- /dev/null +++ b/tools/objtool/arch/powerpc/Build @@ -0,0 +1,2 @@ +objtool-y += decode.o +objtool-y += special.o diff --git a/tools/objtool/arch/powerpc/decode.c b/tools/objtool/arch/powerpc/decode.c new file mode 100644 index 000000000..e534ac112 --- /dev/null +++ b/tools/objtool/arch/powerpc/decode.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <stdio.h> +#include <stdlib.h> +#include <objtool/check.h> +#include <objtool/disas.h> +#include <objtool/elf.h> +#include <objtool/arch.h> +#include <objtool/warn.h> +#include <objtool/builtin.h> + +const char *arch_reg_name[CFI_NUM_REGS] = { + "r0", "sp", "r2", "r3", + "r4", "r5", "r6", "r7", + "r8", "r9", "r10", "r11", + "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", + "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", + "r28", "r29", "r30", "r31", + "ra" +}; + +int arch_ftrace_match(const char *name) +{ + return !strcmp(name, "_mcount"); +} + +s64 arch_insn_adjusted_addend(struct instruction *insn, struct reloc *reloc) +{ + return reloc_addend(reloc); +} + +bool arch_callee_saved_reg(unsigned char reg) +{ + return false; +} + +int arch_decode_hint_reg(u8 sp_reg, int *base) +{ + exit(-1); +} + +const char *arch_nop_insn(int len) +{ + exit(-1); +} + +const char *arch_ret_insn(int len) +{ + exit(-1); +} + +int arch_decode_instruction(struct objtool_file *file, const struct section *sec, + unsigned long offset, unsigned int maxlen, + struct instruction *insn) +{ + unsigned int opcode; + enum insn_type typ; + unsigned long imm; + u32 ins; + + ins = bswap_if_needed(file->elf, *(u32 *)(sec->data->d_buf + offset)); + opcode = ins >> 26; + typ = INSN_OTHER; + imm = 0; + + switch (opcode) { + case 18: /* b[l][a] */ + if (ins == 0x48000005) /* bl .+4 */ + typ = INSN_OTHER; + else if (ins & 1) /* bl[a] */ + typ = INSN_CALL; + else /* b[a] */ + typ = INSN_JUMP_UNCONDITIONAL; + + imm = ins & 0x3fffffc; + if (imm & 0x2000000) + imm -= 0x4000000; + imm |= ins & 2; /* AA flag */ + break; + } + + if (opcode == 1) + insn->len = 8; + else + insn->len = 4; + + insn->type = typ; + insn->immediate = imm; + + return 0; +} + +unsigned long arch_jump_destination(struct instruction *insn) +{ + if (insn->immediate & 2) + return insn->immediate & ~2; + + return insn->offset + insn->immediate; +} + +bool arch_pc_relative_reloc(struct reloc *reloc) +{ + /* + * The powerpc build only allows certain relocation types, see + * relocs_check.sh, and none of those accepted are PC relative. + */ + return false; +} + +void arch_initial_func_cfi_state(struct cfi_init_state *state) +{ + int i; + + for (i = 0; i < CFI_NUM_REGS; i++) { + state->regs[i].base = CFI_UNDEFINED; + state->regs[i].offset = 0; + } + + /* initial CFA (call frame address) */ + state->cfa.base = CFI_SP; + state->cfa.offset = 0; + + /* initial LR (return address) */ + state->regs[CFI_RA].base = CFI_CFA; + state->regs[CFI_RA].offset = 0; +} + +unsigned int arch_reloc_size(struct reloc *reloc) +{ + switch (reloc_type(reloc)) { + case R_PPC_REL32: + case R_PPC_ADDR32: + case R_PPC_UADDR32: + case R_PPC_PLT32: + case R_PPC_PLTREL32: + return 4; + default: + return 8; + } +} + +#ifdef DISAS + +int arch_disas_info_init(struct disassemble_info *dinfo) +{ + return disas_info_init(dinfo, bfd_arch_powerpc, + bfd_mach_ppc, bfd_mach_ppc64, + NULL); +} + +#endif /* DISAS */ diff --git a/tools/objtool/arch/powerpc/include/arch/cfi_regs.h b/tools/objtool/arch/powerpc/include/arch/cfi_regs.h new file mode 100644 index 000000000..59638ebea --- /dev/null +++ b/tools/objtool/arch/powerpc/include/arch/cfi_regs.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#ifndef _OBJTOOL_CFI_REGS_H +#define _OBJTOOL_CFI_REGS_H + +#define CFI_BP 1 +#define CFI_SP CFI_BP +#define CFI_RA 32 +#define CFI_NUM_REGS 33 + +#endif diff --git a/tools/objtool/arch/powerpc/include/arch/elf.h b/tools/objtool/arch/powerpc/include/arch/elf.h new file mode 100644 index 000000000..66814fa28 --- /dev/null +++ b/tools/objtool/arch/powerpc/include/arch/elf.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _OBJTOOL_ARCH_ELF +#define _OBJTOOL_ARCH_ELF + +#define R_NONE R_PPC_NONE +#define R_ABS64 R_PPC64_ADDR64 +#define R_ABS32 R_PPC_ADDR32 +#define R_DATA32 R_PPC_REL32 +#define R_DATA64 R_PPC64_REL64 +#define R_TEXT32 R_PPC_REL32 +#define R_TEXT64 R_PPC64_REL32 + +#endif /* _OBJTOOL_ARCH_ELF */ diff --git a/tools/objtool/arch/powerpc/include/arch/special.h b/tools/objtool/arch/powerpc/include/arch/special.h new file mode 100644 index 000000000..ffef9ada7 --- /dev/null +++ b/tools/objtool/arch/powerpc/include/arch/special.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _PPC_ARCH_SPECIAL_H +#define _PPC_ARCH_SPECIAL_H + +#define EX_ENTRY_SIZE 8 +#define EX_ORIG_OFFSET 0 +#define EX_NEW_OFFSET 4 + +#define JUMP_ENTRY_SIZE 16 +#define JUMP_ORIG_OFFSET 0 +#define JUMP_NEW_OFFSET 4 +#define JUMP_KEY_OFFSET 8 + +#define ALT_ENTRY_SIZE 12 +#define ALT_ORIG_OFFSET 0 +#define ALT_NEW_OFFSET 4 +#define ALT_FEATURE_OFFSET 8 +#define ALT_ORIG_LEN_OFFSET 10 +#define ALT_NEW_LEN_OFFSET 11 + +#endif /* _PPC_ARCH_SPECIAL_H */ diff --git a/tools/objtool/arch/powerpc/special.c b/tools/objtool/arch/powerpc/special.c new file mode 100644 index 000000000..8f9bf61ca --- /dev/null +++ b/tools/objtool/arch/powerpc/special.c @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#include <string.h> +#include <stdlib.h> +#include <objtool/special.h> +#include <objtool/builtin.h> + + +bool arch_support_alt_relocation(struct special_alt *special_alt, + struct instruction *insn, + struct reloc *reloc) +{ + exit(-1); +} + +struct reloc *arch_find_switch_table(struct objtool_file *file, + struct instruction *insn, + unsigned long *table_size) +{ + exit(-1); +} + +const char *arch_cpu_feature_name(int feature_number) +{ + return NULL; +} |
