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| author | Simon Marlow <marlowsd@gmail.com> | 2010-07-05 10:30:14 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2010-07-05 10:30:14 +0000 |
| commit | 062aa8af7b8545386514ecc9359c485f34e7c0c7 (patch) | |
| tree | 8a00627c81a85d75e84dc417c4b7461eb73935b4 /rts/ghc.mk | |
| parent | de1a1f9f882cf1a5c81c4a152edc001aafd3f8a3 (diff) | |
| download | haskell-062aa8af7b8545386514ecc9359c485f34e7c0c7.tar.gz | |
Disable dynamic linking optimisations on OS X
To improve performance of the RTS when dynamically linked on x86, I
previously disabled -fPIC for certain critical modules (the GC, and a
few others). However, build reports suggest that the dynamic linker
on OS X doesn't like this, so I'm disabling this optimsation on that
platform.
Diffstat (limited to 'rts/ghc.mk')
| -rw-r--r-- | rts/ghc.mk | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/rts/ghc.mk b/rts/ghc.mk index 397ab8d187..7815e77e2e 100644 --- a/rts/ghc.mk +++ b/rts/ghc.mk @@ -317,8 +317,18 @@ rts/RtsUtils_CC_OPTS += -DGhcEnableTablesNextToCode=$(DQ)$(GhcEnableTablesNextTo # must be compiled with -fPIC (since the 32-bit relocations generated # by the default small memory can't be resolved at runtime). So we # only do this on i386. - +# +# This apparently doesn't work on OS X (Darwin) where we get errors of +# the form +# +# ld: absolute addressing (perhaps -mdynamic-no-pic) used in _stg_ap_0_fast from rts/dist/build/Apply.dyn_o not allowed in slidable image +# +# and lots of these warnings: +# +# ld: warning codegen in _stg_ap_pppv_fast (offset 0x0000005E) prevents image from loading in dyld shared cache +# ifeq "$(TargetArch_CPP)" "i386" +ifneq "$(TargetOS_CPP)" "darwin" rts/sm/Evac_HC_OPTS += -fno-PIC rts/sm/Evac_thr_HC_OPTS += -fno-PIC rts/sm/Scav_HC_OPTS += -fno-PIC @@ -334,6 +344,7 @@ rts/PrimOps_HC_OPTS += -fno-PIC -static rts/Apply_HC_OPTS += -fno-PIC -static rts/dist/build/AutoApply_HC_OPTS += -fno-PIC -static endif +endif # ffi.h triggers prototype warnings, so disable them here: rts/Interpreter_CC_OPTS += -Wno-strict-prototypes |