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40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Sat, 16 Jul 2016 23:55:16 -0400
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Subject: [PATCH] replace VLA formatting buffer with dprintf
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---
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libc/bionic/bionic_systrace.cpp | 10 +---------
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1 file changed, 1 insertion(+), 9 deletions(-)
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diff --git a/libc/bionic/bionic_systrace.cpp b/libc/bionic/bionic_systrace.cpp
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index 6182ed801..ccb15a995 100644
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--- a/libc/bionic/bionic_systrace.cpp
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+++ b/libc/bionic/bionic_systrace.cpp
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@@ -26,8 +26,6 @@
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#include <cutils/trace.h> // For ATRACE_TAG_BIONIC.
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-#define WRITE_OFFSET 32
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-
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static Lock g_lock;
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static CachedProperty g_debug_atrace_tags_enableflags("debug.atrace.tags.enableflags");
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static uint64_t g_tags;
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@@ -61,15 +59,9 @@ void bionic_trace_begin(const char* message) {
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return;
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}
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- // If bionic tracing has been enabled, then write the message to the
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- // kernel trace_marker.
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- int length = strlen(message);
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- char buf[length + WRITE_OFFSET];
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- size_t len = snprintf(buf, length + WRITE_OFFSET, "B|%d|%s", getpid(), message);
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-
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// Tracing may stop just after checking property and before writing the message.
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// So the write is acceptable to fail. See b/20666100.
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- TEMP_FAILURE_RETRY(write(trace_marker_fd, buf, len));
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+ dprintf(trace_marker_fd, "B|%d|%s", getpid(), message);
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}
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void bionic_trace_end() {
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