232e189a56
Previous code supported only "continuous" code without any kind of branch instructions. To change that, new function was implemented which parses current instruction and returns an addres where the jump might happen (alternative addr). mdthread structure was extended to support two breakpoints (one directly below current instruction and the second placed at the alternative location). One of them must trigger regardless the instruction has or has not been executed due to condition field. Upon cleanup, both software breakpoints are removed. This implementation parses only the most common instructions that are present in the code (like 99.99% of all), but there is a chance there are some left, not covered by the parsing routine. Parsing is done only for 32-bit instruction, no Thumb nor Thumb-2 support is provided. Reviewed by: kib Submitted by: Wojciech Macek <wma@semihalf.com> Obtained from: Semihalf Sponsored by: Juniper Networks Inc. Differential Revision: https://reviews.freebsd.org/D4021
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
#ifndef _MACHDEP_BOOT_MACHDEP_H_
|
|
#define _MACHDEP_BOOT_MACHDEP_H_
|
|
|
|
/* Structs that need to be initialised by initarm */
|
|
#ifdef ARM_NEW_PMAP
|
|
extern vm_offset_t irqstack;
|
|
extern vm_offset_t undstack;
|
|
extern vm_offset_t abtstack;
|
|
#else
|
|
struct pv_addr;
|
|
extern struct pv_addr irqstack;
|
|
extern struct pv_addr undstack;
|
|
extern struct pv_addr abtstack;
|
|
#endif
|
|
|
|
/* Define various stack sizes in pages */
|
|
#define IRQ_STACK_SIZE 1
|
|
#define ABT_STACK_SIZE 1
|
|
#define UND_STACK_SIZE 1
|
|
|
|
/* misc prototypes used by the many arm machdeps */
|
|
struct trapframe;
|
|
void arm_lock_cache_line(vm_offset_t);
|
|
void init_proc0(vm_offset_t kstack);
|
|
void halt(void);
|
|
void abort_handler(struct trapframe *, int );
|
|
void set_stackptrs(int cpu);
|
|
void undefinedinstruction_bounce(struct trapframe *);
|
|
|
|
/* Early boot related helper functions */
|
|
struct arm_boot_params;
|
|
vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
|
|
vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp);
|
|
vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp);
|
|
vm_offset_t fake_preload_metadata(struct arm_boot_params *abp);
|
|
vm_offset_t parse_boot_param(struct arm_boot_params *abp);
|
|
void arm_generic_initclocks(void);
|
|
|
|
/* Board-specific attributes */
|
|
void board_set_serial(uint64_t);
|
|
void board_set_revision(uint32_t);
|
|
|
|
int arm_predict_branch(void *, u_int, register_t, register_t *,
|
|
u_int (*)(void*, int), u_int (*)(void*, vm_offset_t, u_int*));
|
|
|
|
#endif /* !_MACHINE_MACHDEP_H_ */
|