/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IA64_UNWIND_H #define _ASM_IA64_UNWIND_H /* * Copyright (C) 1999-2000, 2003 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> * * A simple API for unwinding kernel stacks. This is used for * debugging and error reporting purposes. The kernel doesn't need * full-blown stack unwinding with all the bells and whitles, so there * is not much point in implementing the full IA-64 unwind API (though * it would of course be possible to implement the kernel API on top * of it). */ struct task_struct; /* forward declaration */ struct switch_stack; /* forward declaration */ enum unw_application_register { UNW_AR_BSP, UNW_AR_BSPSTORE, UNW_AR_PFS, UNW_AR_RNAT, UNW_AR_UNAT, UNW_AR_LC, UNW_AR_EC, UNW_AR_FPSR, UNW_AR_RSC, UNW_AR_CCV, UNW_AR_CSD, UNW_AR_SSD }; /* * The following declarations are private to the unwind * implementation: */ struct unw_stack { unsigned long limit; unsigned long top; }; #define UNW_FLAG_INTERRUPT_FRAME (1UL << 0) /* * No user of this module should every access this structure directly * as it is subject to change. It is declared here solely so we can * use automatic variables. */ struct unw_frame_info { struct unw_stack regstk; struct unw_stack memstk; unsigned int flags; short hint; short prev_script; /* current frame info: */ unsigned long bsp; /* backing store pointer value */ unsigned long sp; /* stack pointer value */ unsigned long psp; /* previous sp value */ unsigned long ip; /* instruction pointer value */ unsigned long pr; /* current predicate values */ unsigned long *cfm_loc; /* cfm save location (or NULL) */ unsigned long pt; /* struct pt_regs location */ struct task_struct *task; struct switch_stack *sw; /* preserved state: */ unsigned long *bsp_loc; /* previous bsp save location */ unsigned long *bspstore_loc; unsigned long *pfs_loc; unsigned long *rnat_loc; unsigned long *rp_loc; unsigned long *pri_unat_loc; unsigned long *unat_loc; unsigned long *pr_loc; unsigned long *lc_loc; unsigned long *fpsr_loc; struct unw_ireg { unsigned long *loc; struct unw_ireg_nat { unsigned long type : 3; /* enum unw_nat_type */ signed long off : 61; /* NaT word is at loc+nat.off */ } nat; } r4, r5, r6, r7; unsigned long *b1_loc, *b2_loc, *b3_loc, *b4_loc, *b5_loc; struct ia64_fpreg *f2_loc, *f3_loc, *f4_loc, *f5_loc, *fr_loc[16]; }; /* * The official API follows below: */ struct unw_table_entry { u64 start_offset; u64 end_offset; u64 info_offset; }; /* * Initialize unwind support. */ extern void unw_init (void); extern void *unw_add_unwind_table (const char *name, unsigned long segment_base, unsigned long gp, const void *table_start, const void *table_end); extern void unw_remove_unwind_table (void *handle); /* * Prepare to unwind blocked task t. */ extern void unw_init_from_blocked_task (struct unw_frame_info *info, struct task_struct *t); extern void unw_init_frame_info (struct unw_frame_info *info, struct task_struct *t, struct switch_stack *sw); /* * Prepare to unwind the currently running thread. */ extern void unw_init_running (void (*callback)(struct unw_frame_info *info, void *arg), void *arg); /* * Unwind to previous to frame. Returns 0 if successful, negative * number in case of an error. */ extern int unw_unwind (struct unw_frame_info *info); /* * Unwind until the return pointer is in user-land (or until an error * occurs). Returns 0 if successful, negative number in case of * error. */ extern int unw_unwind_to_user (struct unw_frame_info *info); #define unw_is_intr_frame(info) (((info)->flags & UNW_FLAG_INTERRUPT_FRAME) != 0) static inline int unw_get_ip (struct unw_frame_info *info, unsigned long *valp) { *valp = (info)->ip; return 0; } static inline int unw_get_sp (struct unw_frame_info *info, unsigned long *valp) { *valp = (info)->sp; return 0; } static inline int unw_get_psp (struct unw_frame_info *info, unsigned long *valp) { *valp = (info)->psp; return 0; } static inline int unw_get_bsp (struct unw_frame_info *info, unsigned long *valp) { *valp = (info)->bsp; return 0; } static inline int unw_get_cfm (struct unw_frame_info *info, unsigned long *valp) { *valp = *(info)->cfm_loc; return 0; } static inline int unw_set_cfm (struct unw_frame_info *info, unsigned long val) { *(info)->cfm_loc = val; return 0; } static inline int unw_get_rp (struct unw_frame_info *info, unsigned long *val) { if (!info->rp_loc) return -1; *val = *info->rp_loc; return 0; } extern int unw_access_gr (struct unw_frame_info *, int, unsigned long *, char *, int); extern int unw_access_br (struct unw_frame_info *, int, unsigned long *, int); extern int unw_access_fr (struct unw_frame_info *, int, struct ia64_fpreg *, int); extern int unw_access_ar (struct unw_frame_info *, int, unsigned long *, int); extern int unw_access_pr (struct unw_frame_info *, unsigned long *, int); static inline int unw_set_gr (struct unw_frame_info *i, int n, unsigned long v, char nat) { return unw_access_gr(i, n, &v, &nat, 1); } static inline int unw_set_br (struct unw_frame_info *i, int n, unsigned long v) { return unw_access_br(i, n, &v, 1); } static inline int unw_set_fr (struct unw_frame_info *i, int n, struct ia64_fpreg v) { return unw_access_fr(i, n, &v, 1); } static inline int unw_set_ar (struct unw_frame_info *i, int n, unsigned long v) { return unw_access_ar(i, n, &v, 1); } static inline int unw_set_pr (struct unw_frame_info *i, unsigned long v) { return unw_access_pr(i, &v, 1); } #define unw_get_gr(i,n,v,nat) unw_access_gr(i,n,v,nat,0) #define unw_get_br(i,n,v) unw_access_br(i,n,v,0) #define unw_get_fr(i,n,v) unw_access_fr(i,n,v,0) #define unw_get_ar(i,n,v) unw_access_ar(i,n,v,0) #define unw_get_pr(i,v) unw_access_pr(i,v,0) #endif /* _ASM_UNWIND_H */
Name | Type | Size | Permission | Actions |
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native | Folder | 0755 |
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sn | Folder | 0755 |
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uv | Folder | 0755 |
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Kbuild | File | 224 B | 0644 |
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acenv.h | File | 1.27 KB | 0644 |
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acpi-ext.h | File | 590 B | 0644 |
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acpi.h | File | 4.1 KB | 0644 |
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agp.h | File | 857 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 890 B | 0644 |
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asmmacro.h | File | 3.29 KB | 0644 |
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atomic.h | File | 9.47 KB | 0644 |
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barrier.h | File | 2.36 KB | 0644 |
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bitops.h | File | 10.84 KB | 0644 |
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bug.h | File | 404 B | 0644 |
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bugs.h | File | 436 B | 0644 |
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cache.h | File | 771 B | 0644 |
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cacheflush.h | File | 1.71 KB | 0644 |
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checksum.h | File | 2.1 KB | 0644 |
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clocksource.h | File | 276 B | 0644 |
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cpu.h | File | 456 B | 0644 |
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cputime.h | File | 855 B | 0644 |
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current.h | File | 418 B | 0644 |
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cyclone.h | File | 442 B | 0644 |
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delay.h | File | 1.7 KB | 0644 |
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device.h | File | 323 B | 0644 |
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div64.h | File | 31 B | 0644 |
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dma-mapping.h | File | 1.17 KB | 0644 |
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dma.h | File | 466 B | 0644 |
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dmi.h | File | 343 B | 0644 |
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early_ioremap.h | File | 428 B | 0644 |
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elf.h | File | 9.83 KB | 0644 |
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emergency-restart.h | File | 149 B | 0644 |
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esi.h | File | 887 B | 0644 |
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exception.h | File | 1.13 KB | 0644 |
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export.h | File | 115 B | 0644 |
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extable.h | File | 330 B | 0644 |
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fb.h | File | 569 B | 0644 |
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fpswa.h | File | 1.88 KB | 0644 |
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ftrace.h | File | 748 B | 0644 |
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futex.h | File | 2.56 KB | 0644 |
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gcc_intrin.h | File | 368 B | 0644 |
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hardirq.h | File | 564 B | 0644 |
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hpsim.h | File | 364 B | 0644 |
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hugetlb.h | File | 1.67 KB | 0644 |
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hw_irq.h | File | 6.33 KB | 0644 |
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idle.h | File | 200 B | 0644 |
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intrinsics.h | File | 306 B | 0644 |
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io.h | File | 11.77 KB | 0644 |
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iommu.h | File | 555 B | 0644 |
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iommu_table.h | File | 175 B | 0644 |
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iosapic.h | File | 3.16 KB | 0644 |
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irq.h | File | 1.02 KB | 0644 |
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irq_regs.h | File | 34 B | 0644 |
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irq_remapping.h | File | 142 B | 0644 |
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irqflags.h | File | 2.11 KB | 0644 |
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kdebug.h | File | 1.64 KB | 0644 |
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kexec.h | File | 1.57 KB | 0644 |
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kmap_types.h | File | 260 B | 0644 |
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kprobes.h | File | 3.82 KB | 0644 |
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kregs.h | File | 6.73 KB | 0644 |
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libata-portmap.h | File | 225 B | 0644 |
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linkage.h | File | 398 B | 0644 |
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local.h | File | 31 B | 0644 |
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local64.h | File | 33 B | 0644 |
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machvec.h | File | 12.1 KB | 0644 |
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machvec_dig.h | File | 449 B | 0644 |
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machvec_dig_vtd.h | File | 558 B | 0644 |
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machvec_hpsim.h | File | 544 B | 0644 |
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machvec_hpzx1.h | File | 544 B | 0644 |
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machvec_hpzx1_swiotlb.h | File | 632 B | 0644 |
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machvec_init.h | File | 1.33 KB | 0644 |
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machvec_sn2.h | File | 4.71 KB | 0644 |
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machvec_uv.h | File | 684 B | 0644 |
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mca.h | File | 5.91 KB | 0644 |
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mca_asm.h | File | 7.18 KB | 0644 |
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meminit.h | File | 2.24 KB | 0644 |
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mman.h | File | 432 B | 0644 |
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mmu.h | File | 374 B | 0644 |
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mmu_context.h | File | 5.29 KB | 0644 |
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mmzone.h | File | 1.1 KB | 0644 |
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module.h | File | 1.1 KB | 0644 |
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msidef.h | File | 1.4 KB | 0644 |
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nodedata.h | File | 1.85 KB | 0644 |
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numa.h | File | 2.18 KB | 0644 |
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page.h | File | 6.49 KB | 0644 |
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pal.h | File | 53.39 KB | 0644 |
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param.h | File | 439 B | 0644 |
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parport.h | File | 534 B | 0644 |
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patch.h | File | 1.19 KB | 0644 |
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pci.h | File | 2.83 KB | 0644 |
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percpu.h | File | 1.32 KB | 0644 |
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perfmon.h | File | 4.33 KB | 0644 |
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pgalloc.h | File | 2.84 KB | 0644 |
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pgtable.h | File | 20.92 KB | 0644 |
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processor.h | File | 17.98 KB | 0644 |
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ptrace.h | File | 5.2 KB | 0644 |
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rwsem.h | File | 3.82 KB | 0644 |
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sal.h | File | 26.51 KB | 0644 |
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sections.h | File | 1.35 KB | 0644 |
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segment.h | File | 162 B | 0644 |
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serial.h | File | 446 B | 0644 |
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shmparam.h | File | 445 B | 0644 |
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signal.h | File | 749 B | 0644 |
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smp.h | File | 3.21 KB | 0644 |
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sparsemem.h | File | 621 B | 0644 |
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spinlock.h | File | 6.92 KB | 0644 |
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spinlock_types.h | File | 475 B | 0644 |
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string.h | File | 659 B | 0644 |
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swiotlb.h | File | 344 B | 0644 |
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switch_to.h | File | 2.89 KB | 0644 |
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syscall.h | File | 2.06 KB | 0644 |
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termios.h | File | 1.88 KB | 0644 |
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thread_info.h | File | 4.66 KB | 0644 |
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timex.h | File | 1.47 KB | 0644 |
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tlb.h | File | 8.42 KB | 0644 |
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tlbflush.h | File | 2.33 KB | 0644 |
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topology.h | File | 1.58 KB | 0644 |
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types.h | File | 828 B | 0644 |
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uaccess.h | File | 9.86 KB | 0644 |
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unaligned.h | File | 337 B | 0644 |
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uncached.h | File | 463 B | 0644 |
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unistd.h | File | 1.45 KB | 0644 |
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unwind.h | File | 5.74 KB | 0644 |
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user.h | File | 2.25 KB | 0644 |
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ustack.h | File | 403 B | 0644 |
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vga.h | File | 657 B | 0644 |
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xor.h | File | 1.12 KB | 0644 |
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