Function report |
Source Code:kernel\debug\kdb\kdb_bp.c |
Create Date:2022-07-28 11:44:06 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:_kdb_bp_install
Proto:static int _kdb_bp_install(struct pt_regs *regs, kdb_bp_t *bp)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct pt_regs * | regs | |
kdb_bp_t * | bp |
132 | If KDB_DEBUG(BP) Then kdb_printf("%s: bp_installed %d\n", __func__, Breakpoint is installed ) |
135 | If Not KDB_STATE(SSBPT) Then Do delayed bp handling = 0 |
137 | If Breakpoint is installed Then Return 1 |
139 | If Do delayed bp handling || Delayed breakpoint && KDB_STATE(DOING_SS) Then |
140 | If KDB_DEBUG(BP) Then kdb_printf("%s: delayed bp\n", __func__) |
142 | kdb_handle_bp(regs, bp) |
143 | Return 0 |
145 | If Not Uses hardware register Then ret = dbg_set_sw_break( Address breakpoint is present at ) |
147 | Else ret = set_hw_breakpoint( Address breakpoint is present at , HW break length , Uses hardware register ) |
151 | If ret == 0 Then |
152 | Breakpoint is installed = 1 |
153 | Else |
154 | kdb_printf("%s: failed to set breakpoint at 0x%lx\n", __func__, Address breakpoint is present at ) |
156 | If Not Uses hardware register Then |
157 | kdb_printf("Software breakpoints are unavailable.\n Boot the kernel with rodata=off\n OR use hw breaks: help bph\n") |
161 | Return 1 |
163 | Return 0 |
Name | Describe |
---|---|
kdb_bp_install | kdb_bp_install* Install kdb_breakpoints prior to returning from the* kernel debugger. This allows the kdb_breakpoints to be set* upon functions that are used internally by kdb, such as* printk(). This function is only called once per kdb session. |
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