It looks like where x86 assembly is using '@' character,
ARM assembly requires '%' character. This makes a problem in the patch
814edf44433801e37318ce79082ac6991dbc87dd 'Force re-linking if
the options have changed (#4451)' which makes linking assembly
file uncompilable on ARM. This patch fixes this.
---
compiler/main/DriverPipeline.hs | 11 ++++++++++-
compiler/utils/Platform.hs | 3 +++
2 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/compiler/main/DriverPipeline.hs b/compiler/main/DriverPipeline.hs
index afbd03e..73d8704 100644
--- a/compiler/main/DriverPipeline.hs
+++ b/compiler/main/DriverPipeline.hs
@@ -1440,7 +1440,10 @@ mkExtraObjToLinkIntoBinary dflags dep_packages = do
| isWindowsTarget = empty
| otherwise = hcat [
text "__asm__(\"\\t.section ", text ghcLinkInfoSectionName,
- text ",\\\"\\\",@note\\n",
+ text ",\\\"\\\",",
+ text elfSectionNote,
+ text "\\n",
+
text "\\t.ascii \\\"", info', text "\\\"\\n\");" ]
where
-- we need to escape twice: once because we're inside a C string,
@@ -1450,6 +1453,12 @@ mkExtraObjToLinkIntoBinary dflags dep_packages = do
escape :: String -> String
escape = concatMap (charToC.fromIntegral.ord)
+ elfSectionNote :: String
+ elfSectionNote = case platformArch defaultTargetPlatform of
+ ArchX86 || ArchPPC || ArchSPARC -> "@note"
+ ArchARM -> "%note"
+ ArchUnknown -> panic "elfSectionNote
ArchUnknown"
+
-- The "link info" is a string representing the parameters of the
-- link. We save this information in the binary, and the next time we
-- link, if nothing else has changed, we use the link info stored in
diff --git a/compiler/utils/Platform.hs b/compiler/utils/Platform.hs
index e4f97bd..5069801 100644
--- a/compiler/utils/Platform.hs
+++ b/compiler/utils/Platform.hs
@@ -37,6 +37,7 @@ data Arch
| ArchPPC
| ArchPPC_64
| ArchSPARC
+ | ArchARM
deriving (Show, Eq)
@@ -80,6 +81,8 @@ defaultTargetArch = ArchPPC
defaultTargetArch = ArchPPC_64
#elif sparc_TARGET_ARCH
defaultTargetArch = ArchSPARC
+#elif arm_TARGET_ARCH
+defaultTargetArch = ArchARM
#else
defaultTargetArch = ArchUnknown
#endif
--
1.7.4.3
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