diff options
Diffstat (limited to 'gcc/doc/gcov.texi')
| -rw-r--r-- | gcc/doc/gcov.texi | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/doc/gcov.texi b/gcc/doc/gcov.texi index 070a08c..9c0ac11 100644 --- a/gcc/doc/gcov.texi +++ b/gcc/doc/gcov.texi @@ -464,10 +464,10 @@ built with the GCC @option{-fprofile-arcs} option is executed. A separate @file{.da} file is created for each source file compiled with this option, and the name of the @file{.da} file is stored as an absolute pathname in the resulting object file. This path name is -derived from the source file name by substituting a @file{.da} suffix. +derived from the object file name by substituting a @file{.da} suffix. -The @file{.da} consists of several blocks (one for each run) with the -following structure: +The @file{.da} consists of one or more blocks with the following +structure: @smallexample "magic" number @minus{}123 (4-byte number) number of functions (4-byte number) @@ -484,7 +484,9 @@ following structure: checksum of function #1 @dots{} @end smallexample -The current structure of the extension block is as follows: +Multiple program runs might merge data into a single block, or might +append a new block. The current structure of the extension block is as +follows: @smallexample number of instrumented arcs in whole program (4-byte number) sum all of instrumented arcs in whole program (8-byte number) |