22 lines
720 B
C
22 lines
720 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef DIV_ROUND_UP
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#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
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#endif
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#define SIZEOF_MCOUNT_LOC_ENTRY 8
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#define SIZEOF_FTRACE_HOTPATCH_TRAMPOLINE 24
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#define FTRACE_HOTPATCH_TRAMPOLINES_SIZE(n) \
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DIV_ROUND_UP(SIZEOF_FTRACE_HOTPATCH_TRAMPOLINE * (n), \
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SIZEOF_MCOUNT_LOC_ENTRY)
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#ifdef CONFIG_FUNCTION_TRACER
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#define FTRACE_HOTPATCH_TRAMPOLINES_TEXT \
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. = ALIGN(8); \
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__ftrace_hotpatch_trampolines_start = .; \
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. = . + FTRACE_HOTPATCH_TRAMPOLINES_SIZE(__stop_mcount_loc - \
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__start_mcount_loc); \
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__ftrace_hotpatch_trampolines_end = .;
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#else
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#define FTRACE_HOTPATCH_TRAMPOLINES_TEXT
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#endif
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