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Diffstat (limited to 'arch/ia64/include/asm/sections.h')
| -rw-r--r-- | arch/ia64/include/asm/sections.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h new file mode 100644 index 000000000..3a033d200 --- /dev/null +++ b/arch/ia64/include/asm/sections.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_IA64_SECTIONS_H +#define _ASM_IA64_SECTIONS_H + +/* + * Copyright (C) 1998-2003 Hewlett-Packard Co + * David Mosberger-Tang <davidm@hpl.hp.com> + */ + +#include <linux/elf.h> +#include <linux/uaccess.h> +#include <asm-generic/sections.h> + +extern char __phys_per_cpu_start[]; +#ifdef CONFIG_SMP +extern char __cpu0_per_cpu[]; +#endif +extern char __start___vtop_patchlist[], __end___vtop_patchlist[]; +extern char __start___rse_patchlist[], __end___rse_patchlist[]; +extern char __start___mckinley_e9_bundles[], __end___mckinley_e9_bundles[]; +extern char __start___phys_stack_reg_patchlist[], __end___phys_stack_reg_patchlist[]; +extern char __start_gate_section[]; +extern char __start_gate_mckinley_e9_patchlist[], __end_gate_mckinley_e9_patchlist[]; +extern char __start_gate_vtop_patchlist[], __end_gate_vtop_patchlist[]; +extern char __start_gate_fsyscall_patchlist[], __end_gate_fsyscall_patchlist[]; +extern char __start_gate_brl_fsys_bubble_down_patchlist[], __end_gate_brl_fsys_bubble_down_patchlist[]; +extern char __start_unwind[], __end_unwind[]; +extern char __start_ivt_text[], __end_ivt_text[]; + +#define HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR 1 + +#undef dereference_function_descriptor +static inline void *dereference_function_descriptor(void *ptr) +{ + struct fdesc *desc = ptr; + void *p; + + if (!get_kernel_nofault(p, (void *)&desc->ip)) + ptr = p; + return ptr; +} + +#undef dereference_kernel_function_descriptor +static inline void *dereference_kernel_function_descriptor(void *ptr) +{ + if (ptr < (void *)__start_opd || ptr >= (void *)__end_opd) + return ptr; + return dereference_function_descriptor(ptr); +} + +#endif /* _ASM_IA64_SECTIONS_H */ |