diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index beb606f..3a6a978 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -191,7 +191,7 @@ in the following sections. -dumpdir @var{dumppfx} -x @var{language} @gol -v -### --help@r{[}=@var{class}@r{[},@dots{}@r{]]} --target-help --version @gol -pass-exit-codes -pipe -specs=@var{file} -wrapper @gol -@@@var{file} -ffile-prefix-map=@var{old}=@var{new} @gol +@@@var{file} -ffile-prefix-map=@var{old}=@var{new} -fcanon-prefix-map @gol -fplugin=@var{file} -fplugin-arg-@var{name}=@var{arg} @gol -fdump-ada-spec@r{[}-slim@r{]} -fada-spec-parent=@var{unit} -fdump-go-spec=@var{file}} @@ -2207,9 +2207,20 @@ files resided in directory @file{@var{new}} instead. Specifying this option is equivalent to specifying all the individual @option{-f*-prefix-map} options. This can be used to make reproducible builds that are location independent. Directories referenced by -directives are not affected by these options. See also -@option{-fmacro-prefix-map}, @option{-fdebug-prefix-map} and -@option{-fprofile-prefix-map}. +directives are not affected by these options. See also +@option{-fmacro-prefix-map}, @option{-fdebug-prefix-map}, +@option{-fprofile-prefix-map} and @option{-fcanon-prefix-map}. + +@item -fcanon-prefix-map +@opindex fcanon-prefix-map +For the @option{-f*-prefix-map} options normally comparison +of @file{@var{old}} prefix against the filename that would be normally +referenced in the result of the compilation is done using textual +comparison of the prefixes, or ignoring character case for case insensitive +filesystems and considering slashes and backslashes as equal on DOS based +filesystems. The @option{-fcanon-prefix-map} causes such comparisons +to be done on canonicalized paths of @file{@var{old}} +and the referenced filename. @opindex fplugin @item -fplugin=@var{name}.so @@ -11362,7 +11373,8 @@ build-time path with an install-time path in the debug info. It can also be used to change an absolute path to a relative path by using @file{.} for @var{new}. This can give more reproducible builds, which are location independent, but may require an extra command to tell GDB -where to find the source files. See also @option{-ffile-prefix-map}. +where to find the source files. See also @option{-ffile-prefix-map} +and @option{-fcanon-prefix-map}. @opindex fvar-tracking @item -fvar-tracking @@ -16550,7 +16562,7 @@ When compiling files residing in directory @file{@var{old}}, record profiling information (with @option{--coverage}) describing them as if the files resided in directory @file{@var{new}} instead. -See also @option{-ffile-prefix-map}. +See also @option{-ffile-prefix-map} and @option{-fcanon-prefix-map}. @opindex fprofile-update @item -fprofile-update=@var{method} |