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| author | Matthew Bauer <mjbauer95@gmail.com> | 2020-06-09 23:35:38 -0500 |
|---|---|---|
| committer | Matthew Bauer <mjbauer95@gmail.com> | 2020-06-09 23:35:38 -0500 |
| commit | 7eca8a16eaf74bc15a816e24005a65e5480d2a79 (patch) | |
| tree | ff9e353a5b9221efc8e8c83db69389be6b9487b0 /mk/libraries.mk | |
| parent | b2c8061b44b01a39d953d75db30e39bd8f300021 (diff) | |
Prelink static libraries into an object file
This combines the *.o into a big .o producing one translation unit.
This preserve our unused static initializers, as specified in the C++
standard:
If no variable or function is odr-used from a given translation
unit, the non-local variables defined in that translation unit may
never be initialized (this models the behavior of an on-demand
dynamic library).
Note that this is very similar to how the --whole-archive flag works.
One advantage of this is that users of the final .a library don’t have
to worry about specifying --whole-archive, or that we have unused
static initializers at all!
Diffstat (limited to 'mk/libraries.mk')
| -rw-r--r-- | mk/libraries.mk | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mk/libraries.mk b/mk/libraries.mk index 307e29b9d..e6ef2e3ec 100644 --- a/mk/libraries.mk +++ b/mk/libraries.mk @@ -125,7 +125,8 @@ define build-library $(1)_PATH := $$(_d)/$$($(1)_NAME).a $$($(1)_PATH): $$($(1)_OBJS) | $$(_d)/ - $(trace-ar) $(AR) crs $$@ $$? + $(trace-ld) $(LD) -Ur -o $$(_d)/$$($(1)_NAME).o $$? + $(trace-ar) $(AR) crs $$@ $$(_d)/$$($(1)_NAME).o $(1)_LDFLAGS_USE += $$($(1)_PATH) $$($(1)_LDFLAGS) |