Got universal inject working.

[cycript.git] / trampoline.sh

diff --git a/trampoline.sh b/trampoline.sh
new file mode 100755 (executable)
index 0000000..81ac2ce
--- /dev/null
+++ b/trampoline.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+
+shopt -s extglob
+
+hpp=$1
+object=$2
+name=$3
+sed=$4
+otool=$5
+lipo=$6
+nm=$7
+shift 7
+
+#shift 1
+#set /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -I/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.3.sdk/usr/include "$@"
+
+"$@"
+
+detailed=$(lipo -detailed_info "${object}")
+
+{
+
+echo '#include "Trampoline.hpp"'
+
+for arch in $(echo "${detailed}" | "${sed}" -e '/^architecture / { s/^architecture //; p; }; d;'); do
+    offset=$(echo "${detailed}" | "${sed}" -e '
+        /^architecture / { x; s/.*/0/; x; };
+        /^architecture '${arch}'$/ { x; s/.*/1/; x; };
+        x; /^1$/ { x; /^ *offset / { s/^ *offset //; p; }; x; }; x;
+        d;
+    ')
+
+    file=($("${otool}" -arch "${arch}" -l "${object}" | "${sed}" -e '
+        x; /^1$/ { x;
+            /^ *fileoff / { s/^.* //; p; };
+            /^ *filesize / { s/^.* //; p; };
+        x; }; x;
+
+        /^ *cmd LC_SEGMENT/ { x; s/.*/1/; x; };
+        
+        d;
+    '))
+
+    fileoff=${file[0]}
+    filesize=${file[1]}
+
+    echo
+    echo "static const char ${name}_${arch}_data_[] = {"
+
+    od -v -t x1 -t c -j "$((offset + fileoff))" -N "${filesize}" "${object}" | "${sed}" -e '
+        /^[0-7]/ ! {
+            s@^        @//  @;
+            s/\(....\)/ \1/g;
+            s@^ // @//@;
+            s/ *$//;
+        };
+
+        /^[0-7]/ {
+            s/^[^ ]*//;
+            s/  */ /g;
+            s/^ *//;
+            s/ $//;
+            s/ /,/g;
+            s/\([^,][^,]\)/0x\1/g;
+            s/$/,/;
+            /^,$/ ! { s/^/    /g; p; }; d;
+        };
+    '
+
+    echo "};"
+
+    echo
+    entry=$("${nm}" -arch "${arch}" "${object}" | "${sed}" -e '/ _Start$/ { s/ .*//; p; }; d;')
+    entry=${entry##*(0)}
+    echo "static size_t ${name}_${arch}_entry_ = 0x${entry:=0};"
+
+    echo
+    echo "/*"
+    "${otool}" -vVt -arch "${arch}" "${object}"
+    echo "*/"
+
+    echo
+    echo "static Trampoline ${name}_${arch}_ = {"
+    echo "    ${name}_${arch}_data_,"
+    echo "    sizeof(${name}_${arch}_data_),"
+    echo "    ${name}_${arch}_entry_,"
+    echo "};"
+done
+
+} >"${hpp}"
+
+#rm -f "${object}"