diff options
Diffstat (limited to 'ld/ld.texinfo')
| -rw-r--r-- | ld/ld.texinfo | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/ld/ld.texinfo b/ld/ld.texinfo index edf628d..03702dc 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -1808,7 +1808,11 @@ the warning, and exit. There are several ways to address this difficulty, regardless of the data type of the exported variable: -One solution is to force one of the 'constants' to be a variable -- +One way is to use --enable-runtime-pseudo-reloc switch. This leaves the task +of adjusting references in your client code for runtime environment, so +this method works only when runtime environtment supports this feature. + +A second solution is to force one of the 'constants' to be a variable -- that is, unknown and un-optimizable at compile time. For arrays, there are two possibilities: a) make the indexee (the array's address) a variable, or b) make the 'constant' index a variable. Thus: @@ -1844,7 +1848,7 @@ extern_ll --> @{ volatile long long * local_ll=&extern_ll; *local_ll @} @end example -A second method of dealing with this difficulty is to abandon +A third method of dealing with this difficulty is to abandon 'auto-import' for the offending symbol and mark it with @code{__declspec(dllimport)}. However, in practice that requires using compile-time #defines to indicate whether you are @@ -1895,7 +1899,7 @@ void main(int argc, char **argv)@{ @} @end example -A third way to avoid this problem is to re-code your +A fourth way to avoid this problem is to re-code your library to use a functional interface rather than a data interface for the offending variables (e.g. set_foo() and get_foo() accessor functions). @@ -1905,6 +1909,18 @@ functions). Do not attempt to do sophisticalted linking of @code{_symbol} to @code{__imp__symbol} for DATA imports from DLLs. +@kindex --enable-runtime-pseudo-reloc +@item --enable-runtime-pseudo-reloc +If your code contains expressions described in --enable-auto-import section, +that is, DATA imports from DLL with non-zero offset, this switch will create +a vector of 'runtime pseudo relocations' which can be used by runtime +environment to adjust references to such data in your client code. + +@kindex --disable-runtime-pseudo-reloc +@item --disable-runtime-pseudo-reloc +Do not create pseudo relocations for non-zero offset DATA imports from +DLLs. This is the default. + @kindex --enable-extra-pe-debug @item --enable-extra-pe-debug Show additional debug info related to auto-import symbol thunking. |