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[Qemu-devel] [PATCH v2 2/4] trace: enforce that every trace-events file


From: Daniel P . Berrangé
Subject: [Qemu-devel] [PATCH v2 2/4] trace: enforce that every trace-events file has a final newline
Date: Fri, 18 Jan 2019 17:31:01 +0000

When generating the trace-events-all file, the build system simply
concatenates all the individual trace-events files. If any one of those
files does not have a final newline, the printf format string will have
the contents of the first line of the next file appended to it, which is
usually a '#' comment.

Signed-off-by: Daniel P. Berrangé <address@hidden>
---
 hw/gpio/trace-events          | 2 +-
 scripts/tracetool/__init__.py | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/gpio/trace-events b/hw/gpio/trace-events
index cb41a89756..5d4dd200c2 100644
--- a/hw/gpio/trace-events
+++ b/hw/gpio/trace-events
@@ -4,4 +4,4 @@
 nrf51_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" 
PRIx64
 nrf51_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 
0x%" PRIx64
 nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
-nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " 
value %" PRIi64
\ No newline at end of file
+nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " 
value %" PRIi64
diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py
index 0e3c9e146c..3478ac93ab 100644
--- a/scripts/tracetool/__init__.py
+++ b/scripts/tracetool/__init__.py
@@ -350,6 +350,8 @@ def read_events(fobj, fname):
 
     events = []
     for lineno, line in enumerate(fobj, 1):
+        if line[-1] != '\n':
+            raise ValueError("%s does not end with a new line" % fname)
         if not line.strip():
             continue
         if line.lstrip().startswith('#'):
-- 
2.20.1




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