From a0e6573578153c81f1166efba73e79771e226c26 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Mon, 22 May 2023 20:17:20 +0200
Subject: removed opcode checks (they were never really finished and in use)

---
 bin/check-opcodes | 197 ------------------------------------------------------
 1 file changed, 197 deletions(-)
 delete mode 100755 bin/check-opcodes

(limited to 'bin/check-opcodes')

diff --git a/bin/check-opcodes b/bin/check-opcodes
deleted file mode 100755
index 48a1d45..0000000
--- a/bin/check-opcodes
+++ /dev/null
@@ -1,197 +0,0 @@
-#!/bin/sh
-
-# shellcheck disable=SC2086,SC2119,SC2120
-
-# shellcheck source=../lib/load-configuration
-. "${0%/*}/../lib/load-configuration"
-
-usage( ) {
-  >&2 cat <<EOF
-
-check_opcodes: [options] [ -a <arch> ] <package>
-
-possible optons:
-  -h|--help: Show this help page
-  -a|--architecture: architecture family to check against, one of
-                     i486, i686, pentium3 (meaning target architecture
-                     the package should be runnable on)
-  -v|--verbose: Verbose output, print result of check for logs
-  -d|--debug: Debug output, used for development and testing
-
-EOF
-  exit 1
-}
-
-VERBOSE=0
-DEBUG=0
-EXIT_CODE=0
-
-verbose( ) {
-  if test $VERBOSE = 1; then
-    echo "$@"
-  fi
-}
-
-debug( ) {
-  if test $DEBUG = 1; then
-    echo "$@"
-  fi
-}
-
-err( ) {
-  echo "ERROR: $*"
-  EXIT_CODE=1
-}
-
-tmp_dir=$(mktemp -d "${work_dir}/tmp.check-opcodes.XXXXXX")
-trap 'rm -rf --one-file-system "${tmp_dir:?}"' EXIT
-
-ARCH=i686
-
-while getopts ":vda:h-:" opt; do
-  case $opt in
-    -)
-      case "$OPTARG" in
-        help)
-          usage
-          ;;
-        verbose)
-          VERBOSE=1
-          ;;
-        debug)
-          DEBUG=1
-          ;;
-        *)
-          echo "ERROR: Invalid option: --$OPTARG" >&2
-          usage
-          ;;
-      esac
-      ;;
-    h)
-      usage
-      ;;
-    v)
-      VERBOSE=1
-      ;;
-    d)
-      DEBUG=1
-      ;;
-    a)
-      ARCH=$OPTARG
-      ;;
-    \?)
-      echo "ERROR: Invalid option: -$OPTARG" >&2
-      usage
-      ;;
-  esac
-done
-
-shift $((OPTIND-1))
-
-PACKAGE=$1
-
-if test "$PACKAGE" = ""; then
-  echo "ERROR: Filename of a package required as argument" >&2
-  usage
-fi
-
-OPCODE_ARGS=""
-case $ARCH in
-  i486)
-    OPCODE_ARGS='-r -a 386 -v'
-    ;;
-  i686)
-    OPCODE_ARGS='-s MMX -s SSE'
-    ;;
-# TODO: pentium4
-  pentium3)
-    OPCODE_ARGS='-s SSE2 -s SSE3'
-    ;;
-  *)
-    echo "ERROR: architecture must currently be one of i486, i686 and pentium3" >&2
-    usage
-esac
-
-debug "Unpacking $PACKAGE to $tmp_dir.."
-bsdtar --no-fflags -x -C $tmp_dir -f $PACKAGE
-
-debug "Checking for architecture: $ARCH ($OPCODE_ARGS).."
-
-# shellcheck disable=SC2044
-for absfile in $(find $tmp_dir \( -regextype grep -regex '.*\.so\(\.[0-9.]\+\)\?' -type f \) -o \( -executable -type f \) ); do
-  file=$(basename $absfile)
-  relfile=${absfile#"${tmp_dir}"}
-  debug "Checking file: $relfile"
-  if ! readelf -a $absfile > $tmp_dir/$file.elf 2>/dev/null; then
-    debug "readelf failed, ignoring file"
-    continue
-  fi
-  if ! objdump -f $absfile > $tmp_dir/$file.objdump 2>/dev/null; then
-    debug "objdump failed, ignoring file"
-    continue
-  fi
-  file $absfile > $tmp_dir/$file.file
-
-  arch=$(grep ^architecture $tmp_dir/$file.objdump | sed 's/^architecture: //g' | cut -f 1 -d ,)
-  case $arch in
-    i386:x86-64)
-      arch='x86_64'
-      ;;
-    i386)
-      arch='x86'
-      ;;
-    *)
-      arch='unknown'
-      ;;
-  esac
-  debug "  Objdump architecture: $arch"
-
-  archelf=$(grep '^ \+Class' $tmp_dir/$file.elf | cut -f 2 -d : | tr -d ' ')
-  case $archelf in
-    ELF64)
-      archelf='x86_64'
-      ;;
-    ELF32)
-      archelf='x86'
-      ;;
-    *)
-      archelf='unknown'
-      ;;
-  esac
-  debug "  Readelf architecture: $archelf"
-
-  if test $arch != $archelf; then
-    err "ERROR: $file ambigous architecture information (objdump: $arch, ELF: $archelf)"
-  fi
-
-  if test $arch = "x86_64"; then
-    err "ERROR: $file is a 64-bit library!"
-    continue
-  fi
-
-  objdump -M intel -d $absfile > $tmp_dir/$file.asm
-  bad_opcodes=$(${base_dir}/bin/opcode $OPCODE_ARGS -m 1 < $tmp_dir/$file.asm | wc -l)
-  if test $bad_opcodes != 0; then
-    case $ARCH in
-      i486)
-        err "$relfile is not built for plain i486 opcodes"
-        ;;
-      i686)
-        err "$relfile contains MMX, SSE or newer opcodes"
-        ;;
-      pentium3)
-        err "$relfile contains SSE2 or newer opcodes"
-        ;;
-    esac
-    if test $DEBUG = 1; then
-      ${base_dir}/bin/opcode $OPCODE_ARGS -B 2 -A 2 < $tmp_dir/$file.asm
-    fi
-  else
-    if test $VERBOSE = 1; then
-      verbose "OK: $relfile fullfills architecture constraint for $ARCH"
-    fi
-  fi
-
-done
-
-exit $EXIT_CODE
-- 
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