[Git][ghc/ghc][ghc-9.0] 2 commits: users-guide: A few release notes fixes
Ben Gamari
gitlab at gitlab.haskell.org
Fri Sep 4 16:56:03 UTC 2020
Ben Gamari pushed to branch ghc-9.0 at Glasgow Haskell Compiler / GHC
Commits:
a6809cf8 by Ben Gamari at 2020-09-02T15:27:27-04:00
users-guide: A few release notes fixes
- - - - -
2dbdb7b9 by GHC GitLab CI at 2020-09-03T19:55:38-04:00
configure: Avoid hard-coded ld path on Windows
The fix to #17962 ended up regressing on Windows as it failed to
replicate the logic responsible for overriding the toolchain paths on
Windows. This resulted in a hard-coded path to a directory that likely
doesn't exist on the user's system (#18550).
(cherry picked from commit 34e0fa963f35a77093fc7111a80c557fc6bd614f)
- - - - -
8 changed files:
- aclocal.m4
- compiler/GHC/Settings/IO.hs
- configure.ac
- docs/users_guide/9.0.1-notes.rst
- hadrian/cfg/system.config.in
- hadrian/src/Builder.hs
- mk/config.mk.in
- rules/build-package-way.mk
Changes:
=====================================
aclocal.m4
=====================================
@@ -516,6 +516,10 @@ AC_DEFUN([FP_SETTINGS],
SettingsHaskellCPPCommand="${mingw_bin_prefix}gcc.exe"
SettingsHaskellCPPFlags="$HaskellCPPArgs"
SettingsLdCommand="${mingw_bin_prefix}ld.exe"
+ # Overrides FIND_MERGE_OBJECTS in order to avoid hard-coding linker
+ # path on Windows (#18550).
+ SettingsMergeObjectsCommand="${SettingsLdCommand}"
+ SettingsMergeObjectsFlags="-r --oformat=pe-bigobj-x86-64"
SettingsArCommand="${mingw_bin_prefix}ar.exe"
SettingsRanlibCommand="${mingw_bin_prefix}ranlib.exe"
SettingsDllWrapCommand="${mingw_bin_prefix}dllwrap.exe"
@@ -529,6 +533,8 @@ AC_DEFUN([FP_SETTINGS],
SettingsHaskellCPPCommand="$(basename $HaskellCPPCmd)"
SettingsHaskellCPPFlags="$HaskellCPPArgs"
SettingsLdCommand="$(basename $LdCmd)"
+ SettingsMergeObjectsCommand="$(basename $MergeObjsCmd)"
+ SettingsMergeObjectsFlags="$MergeObjsArgs"
SettingsArCommand="$(basename $ArCmd)"
SettingsDllWrapCommand="$(basename $DllWrapCmd)"
SettingsWindresCommand="$(basename $WindresCmd)"
@@ -538,6 +544,8 @@ AC_DEFUN([FP_SETTINGS],
SettingsHaskellCPPCommand="$HaskellCPPCmd"
SettingsHaskellCPPFlags="$HaskellCPPArgs"
SettingsLdCommand="$LdCmd"
+ SettingsMergeObjectsCommand="$MergeObjsCmd"
+ SettingsMergeObjectsFlags="$MergeObjsArgs"
SettingsArCommand="$ArCmd"
SettingsRanlibCommand="$RanlibCmd"
if test -z "$DllWrapCmd"
@@ -592,6 +600,8 @@ AC_DEFUN([FP_SETTINGS],
AC_SUBST(SettingsCCompilerSupportsNoPie)
AC_SUBST(SettingsLdCommand)
AC_SUBST(SettingsLdFlags)
+ AC_SUBST(SettingsMergeObjectsCommand)
+ AC_SUBST(SettingsMergeObjectsFlags)
AC_SUBST(SettingsArCommand)
AC_SUBST(SettingsRanlibCommand)
AC_SUBST(SettingsDllWrapCommand)
@@ -2605,7 +2615,7 @@ AC_DEFUN([CHECK_FOR_GOLD_T22266],[
])
$CC -c -o conftest.a.o conftest.a.c || AC_MSG_ERROR([Failed to compile test])
- $SettingsMergeObjectsCommand $SettingsMergeObjectsFlags -T conftest.t conftest.a.o -o conftest.ar.o || AC_MSG_ERROR([Failed to merge test object])
+ $MergeObjsCmd $MergeObjsArgs -T conftest.t conftest.a.o -o conftest.ar.o || AC_MSG_ERROR([Failed to merge test object])
$CC -c -o conftest.main.o conftest.main.c || AC_MSG_ERROR([Failed to compile test driver])
$CC conftest.ar.o conftest.main.o -o conftest || AC_MSG_ERROR([Failed to link test driver])
@@ -2625,33 +2635,30 @@ AC_DEFUN([CHECK_FOR_GOLD_T22266],[
# ------------------
# Find which linker to use to merge object files.
#
+# See Note [Merging object files for GHCi] in GHC.Driver.Pipeline.
AC_DEFUN([FIND_MERGE_OBJECTS],[
AC_REQUIRE([FIND_LD])
- if test -z "$SettingsMergeObjectsCommand"; then
- SettingsMergeObjectsCommand="$LD"
+ if test -z "$MergeObjsCmd"; then
+ MergeObjsCmd="$LD"
fi
- if test -z "$SettingsMergeObjectsFlags"; then
- SettingsMergeObjectsFlags="-r"
+ if test -z "$MergeObjsArgs"; then
+ MergeObjsArgs="-r"
fi
- CHECK_FOR_GOLD_T22266($SettingsMergeObjectsCommand)
+ CHECK_FOR_GOLD_T22266($MergeObjsCmd)
if test "$result" = "1"; then
- AC_MSG_NOTICE([$SettingsMergeObjectsCommand is broken due to binutils 22266, looking for another linker...])
- SettingsMergeObjectsCommand=""
- AC_CHECK_TARGET_TOOL([SettingsMergeObjectsCommand], [ld])
- CHECK_FOR_GOLD_T22266($SettingsMergeObjectsCommand)
+ AC_MSG_NOTICE([$MergeObjsCmd is broken due to binutils 22266, looking for another linker...])
+ MergeObjsCmd=""
+ AC_CHECK_TARGET_TOOL([MergeObjsCmd], [ld])
+ CHECK_FOR_GOLD_T22266($MergeObjsCmd)
if test "$result" = "1"; then
- AC_MSG_ERROR([Linker is affected by binutils 22266 but couldn't find another unaffected linker. Please set the SettingsMergeObjectsCommand variable to a functional linker.])
+ AC_MSG_ERROR([Linker is affected by binutils 22266 but couldn't find another unaffected linker. Please set the MergeObjsCmd variable to a functional linker.])
fi
fi
- if test "$windows" = YES -a "$EnableDistroToolchain" = "NO" -a "$WORD_SIZE" = 64; then
- SettingsMergeObjectsFlags="$SettingsMergeObjectsFlags --oformat=pe-bigobj-x86-64"
- fi
-
- AC_SUBST(SettingsMergeObjectsCommand)
- AC_SUBST(SettingsMergeObjectsFlags)
+ AC_SUBST([MergeObjsCmd])
+ AC_SUBST([MergeObjsArgs])
])
# FIND_PYTHON
=====================================
compiler/GHC/Settings/IO.hs
=====================================
@@ -138,7 +138,7 @@ initSettings top_dir = do
as_args = map Option cc_args
ld_prog = cc_prog
ld_args = map Option (cc_args ++ words cc_link_args_str)
- ld_r_prog <- getSetting "Merge objects command"
+ ld_r_prog <- getToolSetting "Merge objects command"
ld_r_args <- getSetting "Merge objects flags"
llvmTarget <- getSetting "LLVM target"
=====================================
configure.ac
=====================================
@@ -448,6 +448,8 @@ then
NM="${mingwbin}nm.exe"
RANLIB="${mingwbin}ranlib.exe"
OBJDUMP="${mingwbin}objdump.exe"
+ MergeObjsCmd="$LD"
+ MergeObjsArgs="-r --oformat=pe-bigobj-x86-64"
fp_prog_ar="${mingwbin}ar.exe"
AC_PATH_PROG([Genlib],[genlib])
=====================================
docs/users_guide/9.0.1-notes.rst
=====================================
@@ -37,24 +37,24 @@ Highlights
f True = 1
f x = ... case x of { False -> 2; True -> 3 } ...
- GHC is now able to detect the case alt returning 3 as redundant.
+ GHC is now able to detect the case alternative returning ``3`` as redundant.
- Some more performance improvements in edge cases.
-* Windows: Use the larg address space allocator.
+* Windows: Use the large address-space allocator.
This improves runtime but causes increased memory usage on Windows versions
older than Win 8.1/Server 2012.
* Big-number support
- - GHC now relies on a new "ghc-bignum" package to provide Integer/Natural
+ - GHC now relies on a new ``ghc-bignum`` package to provide Integer/Natural
implementations. This package supports the following backends:
- gmp: adapted from integer-gmp package that was used before
- - native: new Haskell implementation, faster than integer-simple which is
+ - native: new Haskell implementation, faster than ``integer-simple`` which is
not used anymore
- All backends now use the same representation for big numbers (the one that
- was previously used only by integer-gmp). It led to several compiler
+ was previously used only by ``integer-gmp``). It led to several compiler
simplifications, performance improvements and bug fixes (e.g.
:ghc-ticket:`15262`, :ghc-ticket:`15286`).
@@ -62,10 +62,10 @@ Highlights
deterministic results so that they can be tested one against the other (they
can only differ in performance). As a consequence, some functions that were
only provided by integer-gmp (prime test, secure powmod, etc.) are no longer
- provided by ghc-bignum. Note that other packages (e.g. hgmp) provide these
+ provided by ghc-bignum. Note that other packages (e.g. ``hgmp``) provide these
functions.
- - For now GHC still doesn't allow dynamic selection of the ghc-bignum backend
+ - For now GHC still doesn't allow dynamic selection of the ``ghc-bignum`` backend
to use.
* Breaking change: Template Haskell splices now act as separation points
=====================================
hadrian/cfg/system.config.in
=====================================
@@ -14,6 +14,7 @@ hs-cpp = @HaskellCPPCmd@
ld = @LdCmd@
make = @MakeCmd@
nm = @NmCmd@
+merge-objects = @MergeObjsCmd@
objdump = @ObjdumpCmd@
ranlib = @REAL_RANLIB_CMD@
sphinx-build = @SPHINXBUILD@
@@ -115,10 +116,10 @@ conf-ld-linker-args-stage1 = @CONF_LD_LINKER_OPTS_STAGE1@
conf-ld-linker-args-stage2 = @CONF_LD_LINKER_OPTS_STAGE2@
conf-ld-linker-args-stage3 = @CONF_LD_LINKER_OPTS_STAGE3@
-conf-merge-objects-args-stage0 = @SettingsMergeObjectsFlags@
-conf-merge-objects-args-stage1 = @SettingsMergeObjectsFlags@
-conf-merge-objects-args-stage2 = @SettingsMergeObjectsFlags@
-conf-merge-objects-args-stage3 = @SettingsMergeObjectsFlags@
+conf-merge-objects-args-stage0 = @MergeObjsArgs@
+conf-merge-objects-args-stage1 = @MergeObjsArgs@
+conf-merge-objects-args-stage2 = @MergeObjsArgs@
+conf-merge-objects-args-stage3 = @MergeObjsArgs@
# Settings:
=====================================
hadrian/src/Builder.hs
=====================================
@@ -312,7 +312,7 @@ systemBuilderPath builder = case builder of
Happy -> fromKey "happy"
HsCpp -> fromKey "hs-cpp"
Ld _ -> fromKey "ld"
- MergeObjects _ -> fromKey "settings-merge-objects-command"
+ MergeObjects _ -> fromKey "merge-objects"
Make _ -> fromKey "make"
Makeinfo -> fromKey "makeinfo"
Nm -> fromKey "nm"
=====================================
mk/config.mk.in
=====================================
@@ -544,6 +544,16 @@ LD_STAGE1 = $(LD)
LD_STAGE2 = $(LD)
LD_STAGE3 = $(LD)
+MERGE_OBJS_STAGE0 = @MergeObjsCmd@
+MERGE_OBJS_STAGE1 = @MergeObjsCmd@
+MERGE_OBJS_STAGE2 = @MergeObjsCmd@
+MERGE_OBJS_STAGE3 = @MergeObjsCmd@
+
+MERGE_OBJS_STAGE0_FLAGS = @MergeObjsArgs@
+MERGE_OBJS_STAGE1_FLAGS = @MergeObjsArgs@
+MERGE_OBJS_STAGE2_FLAGS = @MergeObjsArgs@
+MERGE_OBJS_STAGE3_FLAGS = @MergeObjsArgs@
+
# Cross-compiling options
# See Note [CrossCompiling vs Stage1Only]
CrossCompiling = @CrossCompiling@
=====================================
rules/build-package-way.mk
=====================================
@@ -107,6 +107,7 @@ endif
endif
# Build the GHCi library
+# See Note [Merging object files for GHCi] in GHC.Driver.Pipeline.
ifneq "$(filter $3, v p)" ""
$1_$2_$3_GHCI_LIB = $1/$2/build/HS$$($1_$2_COMPONENT_ID).$$($3_osuf)
ifeq "$$($1_$2_BUILD_GHCI_LIB)" "YES"
@@ -116,7 +117,7 @@ BINDIST_LIBS += $$($1_$2_$3_GHCI_LIB)
endif
endif
$$($1_$2_$3_GHCI_LIB) : $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS) $$($1_$2_LD_SCRIPT)
- $$(call cmd,SettingsMergeObjectsCommand) $(SettingsMergeObjectsFlags) $$(if $$($1_$2_LD_SCRIPT),$$($1_$2_LD_SCRIPT_CMD) $$($1_$2_LD_SCRIPT)) -o $$@ $$(EXTRA_LD_LINKER_OPTS) $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS)
+ $$(call cmd,MERGE_OBJS_STAGE$4) $(MERGE_OBJS_STAGE$4_FLAGS) $$(if $$($1_$2_LD_SCRIPT),$$($1_$2_LD_SCRIPT_CMD) $$($1_$2_LD_SCRIPT)) -o $$@ $$(EXTRA_LD_LINKER_OPTS) $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS)
ifeq "$$($1_$2_BUILD_GHCI_LIB)" "YES"
# Don't bother making ghci libs for bootstrapping packages
ifneq "$4" "0"
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d5c3a027ec0536bd4c36d99b4101aedf55a2d7d1...2dbdb7b9f3c4f10566072f18d7b5f11a9d330211
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d5c3a027ec0536bd4c36d99b4101aedf55a2d7d1...2dbdb7b9f3c4f10566072f18d7b5f11a9d330211
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