ds:fesa_shared_libs
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ds:fesa_shared_libs [2015/04/09 11:44] tmilosic created |
ds:fesa_shared_libs [2015/09/17 11:00] (current) tmilosic |
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| is available to place the shared libraries.\\ | is available to place the shared libraries.\\ | ||
| More specifically, | More specifically, | ||
| - | On the FEC, '' | + | |
| + | On the **FEC** | ||
| + | < | ||
| + | fsl00c:/common/fesa/ | ||
| + | is mounted at | ||
| + | < | ||
| + | /fec/arch | ||
| + | </ | ||
| + | i.e. the libraries are available at\\ | ||
| < | < | ||
| - | /fec/arch/ | + | / |
| </ | </ | ||
| It is encouraged to create a subdirectory for each lib, e.g. HVWrapper resides in | It is encouraged to create a subdirectory for each lib, e.g. HVWrapper resides in | ||
| Line 26: | Line 34: | ||
| with | with | ||
| < | < | ||
| - | libcaenhvwrapper.so -> libcaenhvwrapper.so.5.62 | + | libcaenhvwrapper.so -> libcaenhvwrapper.so.5.77 |
| libcaenhvwrapper.so.5.22 | libcaenhvwrapper.so.5.22 | ||
| libcaenhvwrapper.so.5.56 | libcaenhvwrapper.so.5.56 | ||
| libcaenhvwrapper.so.5.61 | libcaenhvwrapper.so.5.61 | ||
| libcaenhvwrapper.so.5.62 | libcaenhvwrapper.so.5.62 | ||
| + | libcaenhvwrapper.so.5.77 | ||
| </ | </ | ||
| to make testing against different library versions simple.\\ | to make testing against different library versions simple.\\ | ||
| + | |||
| + | However, since this affects all FECs globally,\\ | ||
| + | make sure, that no operational system relying on that \\ | ||
| + | lib boots or reloads the FESA binary while pointing\\ | ||
| + | to an unwanted version and hooks it up - as this might \\ | ||
| + | lead to unexpected behaviour! | ||
| ==== Search Paths ==== | ==== Search Paths ==== | ||
| The // | The // | ||
| Line 77: | Line 92: | ||
| ==== Boilerplate Code ==== | ==== Boilerplate Code ==== | ||
| - | When building FESA for a target architecture, | + | When building FESA for a target architecture, |
| and accessible from the Makefile. | and accessible from the Makefile. | ||
| Depending on where linking to the custom vendor shared library happens,\\ | Depending on where linking to the custom vendor shared library happens,\\ | ||
| Line 89: | Line 104: | ||
| </ | </ | ||
| (Currently, that's actually more connected to the distribution instead of the architecture - see RFC)\\ | (Currently, that's actually more connected to the distribution instead of the architecture - see RFC)\\ | ||
| - | Next create to directory variables that reference the mount point on the ASL73x and the path as seen on the FEC: | + | Next create to directory variables that reference the mount point on the ASL73x and the path as seen on the FEC.\\ |
| + | Mind again that ' | ||
| < | < | ||
| LIB_PREFIX_LOCAL=/ | LIB_PREFIX_LOCAL=/ | ||
| - | LIB_FEC_PATH=/ | + | LIB_FEC_PATH_LOCAL=/ |
| + | LIB_FEC_PATH=/ | ||
| </ | </ | ||
| - | (Mind again that ' | + | Two LIB_FEC* paths are required |
| - | Append | + | We can now append all appropriate paths to linker and rpath flags. |
| < | < | ||
| - | LINKER_FLAGS += -L$(LIB_PREFIX_LOCAL)$(LIB_FEC_PATH) -lcaenhvwrapper | + | LINKER_FLAGS += -L$(LIB_PREFIX_LOCAL)$(LIB_FEC_PATH_LOCAL) -lcaenhvwrapper |
| - | LINKER_FLAGS += -Wl, | + | LINKER_FLAGS += -Wl, |
| </ | </ | ||
| There must be no whitespace around the commas!\\ | There must be no whitespace around the commas!\\ | ||
| - | Otherwise the linker will complaint. | + | Otherwise, the linker will complain.\\ |
| - | ==== Suggestion/ | + | \\ |
| + | This allows to test the binary on the ASL73x cluster and run it on the FEC. | ||
| + | ==== Proposal | ||
| I suggest changing the directory structure for shared libs from | I suggest changing the directory structure for shared libs from | ||
| < | < | ||
ds/fesa_shared_libs.1428572667.txt.gz · Last modified: 2015/04/09 11:44 by tmilosic
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