diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5be4086..fa80d37 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2003-04-19 Nathan Sidwell <nathan@codesourcery.com> + + * doc/invoke.texi (-fprofile-arcs): Mention -lgcov, locking and + fork behaviour. + 2003-04-19 Neil Booth <neil@daikokuya.co.uk> * cppexp.c (eval_token): Permit true and false even if pedantic. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 7201dd7..f4d23fe 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -3032,11 +3032,16 @@ additional @option{-ftest-coverage} option. You do not need to profile every source file in a program. @item -Link your object files as normal. +Link your object files with @option{-lgcov} or @option{-fprofile-arcs} +(the latter implies the former). @item Run the program on a representative workload to generate the arc profile -information. This may be repeated any number of times. +information. This may be repeated any number of times. You can run +concurrent instances of your program, and provided that the file system +supports locking, the data files will be correctly updated. Also +@code{fork} calls are detected and correctly handled (double counting +will not happen). @item For profile-directed optimizations, compile the source files again with |