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68 lines
1.1 KiB
C
68 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2018 MediaTek Inc.
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*
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* Author: Johnson-CH Chiu <Johnson-CH.chiu@mediatek.com>
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*
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*/
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#include "mtk_imgsys-trace.h"
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int imgsys_ftrace_en;
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module_param(imgsys_ftrace_en, int, 0644);
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static noinline int tracing_mark_write(const char *buf)
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{
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trace_puts(buf);
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return 0;
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}
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void __imgsys_systrace_b(pid_t tgid, const char *fmt, ...)
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{
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char log[256];
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va_list args;
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int len;
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char buf2[256];
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memset(log, ' ', sizeof(log));
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va_start(args, fmt);
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len = vsnprintf(log, sizeof(log), fmt, args);
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va_end(args);
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if (unlikely(len < 0))
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return;
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else if (unlikely(len == 256))
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log[255] = '\0';
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len = snprintf(buf2, sizeof(buf2), "B|%d|%s\n", tgid, log);
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if (unlikely(len < 0))
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return;
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else if (unlikely(len == 256))
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buf2[255] = '\0';
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tracing_mark_write(buf2);
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}
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void __imgsys_systrace_e(void)
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{
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char buf2[256];
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int len;
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len = snprintf(buf2, sizeof(buf2), "E\n");
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if (unlikely(len < 0))
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return;
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else if (unlikely(len == 256))
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buf2[255] = '\0';
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tracing_mark_write(buf2);
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}
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bool imgsys_core_ftrace_enabled(void)
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{
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return imgsys_ftrace_en;
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}
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