cygwin: stdenv

4 files changed, 132 insertions, 0 deletions

diff --git a/pkgs/stdenv/cygwin/all-buildinputs-as-runtimedep.sh b/pkgs/stdenv/cygwin/all-buildinputs-as-runtimedep.sh
new file mode 100644
index 00000000000..7cb6a58f180
--- /dev/null
+++ b/pkgs/stdenv/cygwin/all-buildinputs-as-runtimedep.sh
@@ -0,0 +1,16 @@
+# On cygwin, automatic runtime dependency detection does not work
+# because the binaries do not contain absolute references to store
+# locations (yet)
+postFixupHooks+=(_cygwinAllBuildInputsAsRuntimeDep)
+
+_cygwinAllBuildInputsAsRuntimeDep() {
+    if [ -n "$buildInputs" ]; then
+        mkdir -p "$out/nix-support"
+        echo "$buildInputs" >> "$out/nix-support/cygwin-buildinputs-as-runtime-deps"
+    fi
+
+    if [ -n "$nativeBuildInputs" ]; then
+        mkdir -p "$out/nix-support"
+        echo "$nativeBuildInputs" >> "$out/nix-support/cygwin-buildinputs-as-runtime-deps"
+    fi
+}
diff --git a/pkgs/stdenv/cygwin/rebase-i686.sh b/pkgs/stdenv/cygwin/rebase-i686.sh
new file mode 100644
index 00000000000..e5695c75a96
--- /dev/null
+++ b/pkgs/stdenv/cygwin/rebase-i686.sh
@@ -0,0 +1,21 @@
+postFixupHooks+=(_cygwinFixAutoImageBase)
+
+_cygwinFixAutoImageBase() {
+    find $out -name "*.dll" | while read DLL; do
+        if [ -f /etc/rebasenix.nextbase ]; then
+            NEXTBASE="$(</etc/rebasenix.nextbase)"
+        fi
+        NEXTBASE=${NEXTBASE:-0x62000000}
+
+        REBASE=(`/bin/rebase -i $DLL`)
+        BASE=${REBASE[2]}
+        SIZE=${REBASE[4]}
+        SKIP=$(((($SIZE>>16)+1)<<16))
+
+        echo "REBASE FIX: $DLL $BASE -> $NEXTBASE"
+        /bin/rebase -b $NEXTBASE $DLL
+        NEXTBASE="0x`printf %x $(($NEXTBASE+$SKIP))`"
+
+        echo $NEXTBASE > /etc/rebasenix.nextbase
+    done
+}
diff --git a/pkgs/stdenv/cygwin/rebase-x86_64.sh b/pkgs/stdenv/cygwin/rebase-x86_64.sh
new file mode 100644
index 00000000000..f782f18dfd1
--- /dev/null
+++ b/pkgs/stdenv/cygwin/rebase-x86_64.sh
@@ -0,0 +1,21 @@
+postFixupHooks+=(_cygwinFixAutoImageBase)
+
+_cygwinFixAutoImageBase() {
+    find $out -name "*.dll" | while read DLL; do
+        if [ -f /etc/rebasenix.nextbase ]; then
+            NEXTBASE="$(</etc/rebasenix.nextbase)"
+        fi
+        NEXTBASE=${NEXTBASE:-0x200000000}
+
+        REBASE=(`/bin/rebase -i $DLL`)
+        BASE=${REBASE[2]}
+        SIZE=${REBASE[4]}
+        SKIP=$(((($SIZE>>16)+1)<<16))
+
+        echo "REBASE FIX: $DLL $BASE -> $NEXTBASE"
+        /bin/rebase -b $NEXTBASE $DLL
+        NEXTBASE="0x`printf %x $(($NEXTBASE+$SKIP))`"
+
+        echo $NEXTBASE > /etc/rebasenix.nextbase
+    done
+}
diff --git a/pkgs/stdenv/cygwin/wrap-exes-to-find-dlls.sh b/pkgs/stdenv/cygwin/wrap-exes-to-find-dlls.sh
new file mode 100644
index 00000000000..d0da8c1b65c
--- /dev/null
+++ b/pkgs/stdenv/cygwin/wrap-exes-to-find-dlls.sh
@@ -0,0 +1,74 @@
+postFixupHooks+=(_cygwinWrapExesToFindDlls)
+
+_cygwinWrapExesToFindDlls() {
+    find $out -type l | while read LINK; do
+        TARGET="$(readlink "${LINK}")"
+
+        # fix all non .exe links that link explicitly to a .exe
+        if [[ ${TARGET} == *.exe ]] && [[ ${LINK} != *.exe ]]; then
+            mv "${LINK}" "${LINK}.exe"
+            LINK="${LINK}.exe"
+        fi
+
+        # generate complementary filenames
+        if [[ ${LINK} == *.exe ]]; then
+            _LINK="${LINK%.exe}"
+            _TARGET="${TARGET%.exe}"
+        else
+            _LINK="${LINK}.exe"
+            _TARGET="${TARGET}.exe"
+        fi
+
+        # check if sould create complementary link
+        DOLINK=1
+        if [[ ${_TARGET} == *.exe ]]; then
+            # the canonical target has to be a .exe
+            CTARGET="$(readlink -f "${LINK}")"
+            if [[ ${CTARGET} != *.exe ]]; then
+                CTARGET="${CTARGET}.exe"
+            fi
+
+            if [ ! -e "${CTARGET}" ]; then
+                unset DOLINK
+            fi
+        fi
+
+        if [ -e "${_LINK}" ]; then
+            # complementary link seems to exist
+            # but could be cygwin smoke and mirrors
+            INO=$(stat -c%i "${LINK}")
+            _INO=$(stat -c%i "${_LINK}")
+            if [ "${INO}" -ne "${_INO}" ]; then
+                unset DOLINK
+            fi
+        fi
+
+        # create complementary link
+        if [ -n "${DOLINK}" ]; then
+            ln -s "${_TARGET}" "${_LINK}.tmp"
+            mv "${_LINK}.tmp" "${_LINK}"
+        fi
+    done
+
+    find $out -type f -name "*.exe" | while read EXE; do
+        WRAPPER="${EXE%.exe}"
+        if [ -e "${WRAPPER}" ]; then
+            # check if really exists or cygwin smoke and mirrors
+            INO=$(stat -c%i "${EXE}")
+            _INO=$(stat -c%i "${WRAPPER}")
+            if [ "${INO}" -ne "${_INO}" ]; then
+                continue
+            fi
+        fi
+
+        mv "${EXE}" "${EXE}.tmp"
+
+        cat >"${WRAPPER}" <<EOF
+#!/bin/sh
+export PATH=$_PATH${_PATH:+:}\${PATH}
+exec "\$0.exe" "\$@"
+EOF
+        chmod +x "${WRAPPER}"
+        mv "${EXE}.tmp" "${EXE}"
+    done
+}