Improved handling of relocation information to enable more peep-hole optimizations.
Optimized switch statements where all labels are constant small integers.
Optimized String.prototype.indexOf for common cases.
Fixed more build issues (issue 80).
Fixed a couple of profiler issues.
Fixed bug where the body of a function created using the Function constructor was not allowed to end with a single-line comment (issue 85).
Improved handling of object literals by canonicalizing object literal maps. This will allow JSON objects with the same set of properties to share the same map making inline caching work better for JSON objects.
git-svn-id: http://v8.googlecode.com/svn/trunk@373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/platform-linux.cc b/src/platform-linux.cc
index 9589bf9..46ca7dc 100644
--- a/src/platform-linux.cc
+++ b/src/platform-linux.cc
@@ -38,11 +38,12 @@
// executable. Otherwise, OS raises an exception when executing code
// in that page.
#include <sys/types.h> // mmap & munmap
-#include <sys/mman.h> // mmap & munmap
-#include <sys/stat.h> // open
+#include <sys/mman.h> // mmap & munmap
+#include <sys/stat.h> // open
#include <sys/fcntl.h> // open
-#include <unistd.h> // getpagesize
-#include <execinfo.h> // backtrace, backtrace_symbols
+#include <unistd.h> // getpagesize
+#include <execinfo.h> // backtrace, backtrace_symbols
+#include <strings.h> // index
#include <errno.h>
#include <stdarg.h>
@@ -194,7 +195,16 @@
}
-double OS::nan_value() { return NAN; }
+double OS::nan_value() {
+ return NAN;
+}
+
+
+int OS::ActivationFrameAlignment() {
+ // No constraint on Linux.
+ return 0;
+}
+
// We keep the lowest and highest addresses mapped as a quick way of
// determining that pointers are outside the heap (used mostly in assertions
@@ -335,12 +345,13 @@
if (result < 1) break;
} while (buffer[bytes_read] != '\n');
buffer[bytes_read] = 0;
- // There are 56 chars to ignore at this point in the line.
- if (bytes_read < 56) continue;
// Ignore mappings that are not executable.
if (buffer[3] != 'x') continue;
+ char* start_of_path = index(buffer, '/');
+ // There may be no filename in this line. Skip to next.
+ if (start_of_path == NULL) continue;
buffer[bytes_read] = 0;
- LOG(SharedLibraryEvent(buffer + 56, start, end));
+ LOG(SharedLibraryEvent(start_of_path, start, end));
}
close(fd);
#endif