From f0c0166d1f61b91967264b015f0e2a9e9afc8425 Mon Sep 17 00:00:00 2001 From: Torsten Ruger Date: Mon, 21 Apr 2014 11:02:15 +0300 Subject: [PATCH] combines and dries the two program tests --- test/small_program_test.rb | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/test/small_program_test.rb b/test/small_program_test.rb index 71af20fb..cb2b1628 100644 --- a/test/small_program_test.rb +++ b/test/small_program_test.rb @@ -3,7 +3,8 @@ require_relative 'helper' # test the generation of a whole program # not many asserts, but assume all is well (ho ho) # linking and running does not produce seqmentation fault, ie it works -# moving on to calling external functions to get some output +# should really thiink about more asserts (but currently no way to execute as still running on mac ) +# (have to fix the int being used in code generation as ruby int is only 31 bits, and that wont do) class TestSmallProg < MiniTest::Test # need a code generator, for arm @@ -19,13 +20,34 @@ class TestSmallProg < MiniTest::Test subs r0, r0, 1 #2 bne loop_start #3 mov r7, 1 #4 - swi 0 #5 5 instruction x 4 == 20 + swi 0 #5 5 instructions } + write( 5 , "small" ) + end + + def test_extern + @generator.instance_eval { + mov r0 , 50 #1 + push lr #2 + bl extern(:putchar) #3 + pop pc #4 + mov r7, 1 #5 + swi 0 #6 6 instructions + } + #this actually seems to get an extern symbol out there and linker is ok (but doesnt run, hmm) + @generator.relocations.each { |reloc| + #puts "reloc #{reloc.inspect}" + writer.add_reloc_symbol reloc.label.name.to_s + } + write( 6 , "extern") + end + #helper to write the file + def write len ,name writer = Asm::ObjectWriter.new(Elf::Constants::TARGET_ARM) assembly = @generator.assemble - assert_equal 20 , assembly.length + assert_equal len * 4 , assembly.length writer.set_text assembly - writer.save('small_test.o') + writer.save('#{name}_test.o') end end