[fuchsia] Redirect stdio to logging
Notably this affects compiler debug logging.
Test:set INTEL_DEBUG="all", run vkreadback
Change-Id: I61345eac33110368f3634a95de82e548482791d6
diff --git a/src/os/BUILD.gn b/src/os/BUILD.gn
index 519ce7f..b23cf0c 100644
--- a/src/os/BUILD.gn
+++ b/src/os/BUILD.gn
@@ -26,6 +26,7 @@
sources = [
"fuchsia.cpp",
"fuchsia.h",
+ "fuchsia_stdio.c",
]
public_deps = [
"//zircon/public/lib/syslog-static",
diff --git a/src/os/fuchsia_stdio.c b/src/os/fuchsia_stdio.c
new file mode 100644
index 0000000..8a979e7
--- /dev/null
+++ b/src/os/fuchsia_stdio.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright © 2019 Google, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <lib/syslog/global.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define TAG "mesa"
+
+void __assert_fail(const char* expr, const char* file, int line, const char* func)
+{
+ FX_LOGF(ERROR, TAG, "Assertion failed: %s (%s: %s: %d)", expr, file, func, line);
+ abort();
+}
+
+int puts(const char* s) { return fputs(s, stdout); }
+
+int printf(const char* format, ...)
+{
+ va_list args;
+ va_start(args, format);
+ vfprintf(stdout, format, args);
+ va_end(args);
+ return 0;
+}
+
+int putc(int c, FILE* stream) { return fprintf(stream, "%c", c); }
+
+int vprintf(const char* format, va_list ap) { return vfprintf(stdout, format, ap); }
+
+int fprintf(FILE* stream, const char* format, ...)
+{
+ assert(stream == stdout || stream == stderr);
+ if (stream == stdout || stream == stderr) {
+ va_list args;
+ va_start(args, format);
+ vfprintf(stream, format, args);
+ va_end(args);
+ }
+ return 0;
+}
+
+static inline fx_log_severity_t severity(FILE* stream)
+{
+ return stream == stdout ? FX_LOG_INFO : FX_LOG_ERROR;
+}
+
+int fputs(const char* s, FILE* stream) { return fprintf(stream, "%s", s); }
+
+int vfprintf(FILE* stream, const char* format, va_list ap)
+{
+ assert(stream == stdout || stream == stderr);
+ if (stream == stdout || stream == stderr) {
+ static char buffer[512];
+ static size_t offset = 0;
+ int ret = vsnprintf(buffer + offset, sizeof(buffer) - offset, format, ap);
+ if (ret < 0)
+ return ret;
+ offset += ret;
+ if (offset >= sizeof(buffer) || (offset > 0 && buffer[offset - 1] == '\n')) {
+ _FX_LOG(severity(stream), TAG, buffer);
+ offset = 0;
+ }
+ }
+ return 0;
+}
