Merge pull request #6 from Keno/kf/isdynamic

Add an isdynamic function

Author: staticfloat

src/Abstract/ObjectHandle.jl

@@ -2,7 +2,7 @@
 export ObjectHandle,
        readmeta,
        seek, seekstart, skip, start, iostream, position, read, readuntil, eof,
-       endianness, is64bit, isrelocatable, isexecutable, islibrary, 
+       endianness, is64bit, isrelocatable, isexecutable, islibrary, isdynamic,
        mangle_section_name, mangle_symbol_name, handle, header, format_string,
        section_header_offset, section_header_size, section_header_type,
        segment_header_offset, segment_header_size, segment_header_type,
@@ -49,6 +49,7 @@ where `oh <: COFFHandle`).
   - *isrelocatable()*
   - *isexecutable()*
   - *islibrary()*
+  - *isdynamic()*
   - *mangle_section_name()*
   - *mangle_symbol_name()*
   - handle()
@@ -214,6 +215,13 @@ Returns `true` if the given `ObjectHandle` represents a shared library
 """
 @mustimplement islibrary(oh::ObjectHandle)
 
+"""
+    isdynamic(oh::ObjectHandle)
+
+Returns `true` if the given `ObjectHandle` makes use of dynamic linking.
+"""
+@mustimplement isdynamic(oh::ObjectHandle)
+
 """
     mangle_section_name(oh::ObjectHandle, name::AbstractString)
 

src/COFF/COFFHandle.jl

@@ -78,6 +78,7 @@ is64bit(oh::COFFHandle) = coff_header_is64bit(header(oh))
 isrelocatable(oh::COFFHandle) = isrelocatable(header(oh))
 isexecutable(oh::COFFHandle) = isexecutable(header(oh))
 islibrary(oh::COFFHandle) = islibrary(header(oh))
+isdynamic(oh::COFFHandle) = !isempty(find(Sections(oh), [".idata"]))
 mangle_section_name(oh::COFFHandle, name::AbstractString) = string(".", name)
 function mangle_symbol_name(oh::COFFHandle, name::AbstractString)
     # sob
@@ -109,4 +110,4 @@ function strtab_offset(oh::H) where {H <: COFFHandle}
 end
 
 ### Misc. stuff
-path(oh::COFFHandle) = oh.path
+path(oh::COFFHandle) = oh.path

src/ELF/ELFHandle.jl

@@ -72,6 +72,7 @@ is64bit(oh::ELFHandle) = elf_internal_is64bit(oh.ei)
 isrelocatable(oh::ELFHandle) = header(oh).e_type == ET_REL
 isexecutable(oh::ELFHandle) = header(oh).e_type == ET_EXEC
 islibrary(oh::ELFHandle) = header(oh).e_type == ET_DYN
+isdynamic(oh::ELFHandle) = !isempty(find(Sections(oh), ".dynamic"))
 mangle_section_name(oh::ELFHandle, name::AbstractString) = string(".", name)
 mangle_symbol_name(oh::ELFHandle, name::AbstractString) = name
 format_string(::Type{H}) where {H <: ELFHandle} = "ELF"

src/MachO/MachOHandle.jl

@@ -40,6 +40,7 @@ is64bit(oh::MachOHandle) = macho_is64bit(header(oh).magic)
 isrelocatable(oh::MachOHandle) = header(oh).filetype == MH_OBJECT
 isexecutable(oh::MachOHandle) = header(oh).filetype == MH_EXECUTE
 islibrary(oh::MachOHandle) = header(oh).filetype == MH_DYLIB
+isdynamic(oh::MachOHandle) = !isempty(find(MachOLoadCmds(oh), [MachOLoadDylibCmd]))
 mangle_section_names(oh::MachOHandle, name) = string("__", name)
 mangle_symbol_name(oh::MachOHandle, name::AbstractString) = string("_", name)
 format_string(::Type{H}) where {H <: MachOHandle} = "MachO"

test/runtests.jl

@@ -38,6 +38,7 @@ function test_libfoo_and_fooifier(fooifier_path, libfoo_path)
             # Ensure these are the kinds of files we thought they were
             @test isexecutable(oh_exe)
             @test islibrary(oh_lib)
+            @test isdynamic(oh_exe) && isdynamic(oh_lib)
         end
 
 
@@ -154,4 +155,4 @@ test_libfoo_and_fooifier("./mac64/fooifier", "./mac64/libfoo.dylib")
 
 # Run COFF tests
 test_libfoo_and_fooifier("./win32/fooifier.exe", "./win32/libfoo.dll")
-test_libfoo_and_fooifier("./win64/fooifier.exe", "./win64/libfoo.dll")
+test_libfoo_and_fooifier("./win64/fooifier.exe", "./win64/libfoo.dll")