mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-27 13:30:05 +00:00
Remove host endianness info from TargetData and
put it in a new header System/Host.h instead. Instead of getting the endianness from configure, calculate it directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44959 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
parent
8d2ed33f6f
commit
67f1c493d1
@ -227,10 +227,7 @@ dnl Define a substitution, ARCH, for the target architecture
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AC_SUBST(ARCH,$llvm_cv_target_arch)
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dnl Check for the endianness of the target
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AC_C_BIGENDIAN([AC_SUBST([ENDIAN],[big]),
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AC_DEFINE([MSB_FIRST], [1], [Define if this target is big endian])],
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[AC_SUBST([ENDIAN],[little]),
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AC_DEFINE([LSB_FIRST], [1], [Define if this target is little endian])])
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AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
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dnl Check for build platform executable suffix if we're crosscompiling
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if test "$cross_compiling" = yes; then
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62
configure
vendored
62
configure
vendored
@ -828,6 +828,7 @@ NOLINKALL
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LLVM_ON_UNIX
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LLVM_ON_WIN32
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ARCH
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ENDIAN
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CC
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CFLAGS
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LDFLAGS
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@ -838,7 +839,6 @@ OBJEXT
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CPP
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GREP
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EGREP
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ENDIAN
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LLVM_CROSS_COMPILING
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BUILD_CC
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BUILD_EXEEXT
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@ -4183,19 +4183,9 @@ echo "${ECHO_T}$ac_cv_c_bigendian" >&6; }
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case $ac_cv_c_bigendian in
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yes)
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ENDIAN=big
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,
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cat >>confdefs.h <<\_ACEOF
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#define MSB_FIRST 1
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_ACEOF
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;;
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no)
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ENDIAN=little
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,
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cat >>confdefs.h <<\_ACEOF
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#define LSB_FIRST 1
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_ACEOF
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;;
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*)
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{ { echo "$as_me:$LINENO: error: unknown endianness
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@ -9881,7 +9871,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<EOF
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#line 9884 "configure"
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#line 9874 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -11816,7 +11806,7 @@ ia64-*-hpux*)
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;;
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*-*-irix6*)
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# Find out which ABI we are using.
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echo '#line 11819 "configure"' > conftest.$ac_ext
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echo '#line 11809 "configure"' > conftest.$ac_ext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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@ -13456,11 +13446,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:13459: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:13449: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:13463: \$? = $ac_status" >&5
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echo "$as_me:13453: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@ -13724,11 +13714,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:13727: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:13717: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:13731: \$? = $ac_status" >&5
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echo "$as_me:13721: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@ -13828,11 +13818,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:13831: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:13821: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>out/conftest.err)
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ac_status=$?
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cat out/conftest.err >&5
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echo "$as_me:13835: \$? = $ac_status" >&5
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echo "$as_me:13825: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s out/conftest2.$ac_objext
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then
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# The compiler can only warn and ignore the option if not recognized
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@ -16136,7 +16126,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<EOF
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#line 16139 "configure"
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#line 16129 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -16236,7 +16226,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<EOF
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#line 16239 "configure"
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#line 16229 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -18572,11 +18562,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:18575: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:18565: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:18579: \$? = $ac_status" >&5
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echo "$as_me:18569: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@ -18676,11 +18666,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:18679: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:18669: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>out/conftest.err)
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ac_status=$?
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cat out/conftest.err >&5
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echo "$as_me:18683: \$? = $ac_status" >&5
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echo "$as_me:18673: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s out/conftest2.$ac_objext
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then
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# The compiler can only warn and ignore the option if not recognized
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@ -20246,11 +20236,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:20249: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:20239: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:20253: \$? = $ac_status" >&5
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echo "$as_me:20243: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@ -20350,11 +20340,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:20353: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:20343: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>out/conftest.err)
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ac_status=$?
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cat out/conftest.err >&5
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echo "$as_me:20357: \$? = $ac_status" >&5
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echo "$as_me:20347: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s out/conftest2.$ac_objext
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then
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# The compiler can only warn and ignore the option if not recognized
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@ -22553,11 +22543,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:22556: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:22546: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:22560: \$? = $ac_status" >&5
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echo "$as_me:22550: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@ -22821,11 +22811,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:22824: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:22814: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>conftest.err)
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ac_status=$?
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cat conftest.err >&5
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echo "$as_me:22828: \$? = $ac_status" >&5
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echo "$as_me:22818: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s "$ac_outfile"; then
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# The compiler can only warn and ignore the option if not recognized
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# So say no if there are warnings other than the usual output.
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@ -22925,11 +22915,11 @@ else
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-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
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-e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
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-e 's:$: $lt_compiler_flag:'`
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(eval echo "\"\$as_me:22928: $lt_compile\"" >&5)
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(eval echo "\"\$as_me:22918: $lt_compile\"" >&5)
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(eval "$lt_compile" 2>out/conftest.err)
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ac_status=$?
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cat out/conftest.err >&5
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echo "$as_me:22932: \$? = $ac_status" >&5
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echo "$as_me:22922: \$? = $ac_status" >&5
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if (exit $ac_status) && test -s out/conftest2.$ac_objext
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then
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# The compiler can only warn and ignore the option if not recognized
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@ -32769,6 +32759,7 @@ NOLINKALL!$NOLINKALL$ac_delim
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LLVM_ON_UNIX!$LLVM_ON_UNIX$ac_delim
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LLVM_ON_WIN32!$LLVM_ON_WIN32$ac_delim
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ARCH!$ARCH$ac_delim
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ENDIAN!$ENDIAN$ac_delim
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CC!$CC$ac_delim
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CFLAGS!$CFLAGS$ac_delim
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LDFLAGS!$LDFLAGS$ac_delim
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@ -32779,7 +32770,6 @@ OBJEXT!$OBJEXT$ac_delim
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CPP!$CPP$ac_delim
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GREP!$GREP$ac_delim
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EGREP!$EGREP$ac_delim
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ENDIAN!$ENDIAN$ac_delim
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LLVM_CROSS_COMPILING!$LLVM_CROSS_COMPILING$ac_delim
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BUILD_CC!$BUILD_CC$ac_delim
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BUILD_EXEEXT!$BUILD_EXEEXT$ac_delim
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@ -494,9 +494,6 @@
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/* Installation prefix directory */
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#undef LLVM_PREFIX
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/* Define if this target is little endian */
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#undef LSB_FIRST
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/* Define if the OS needs help to load dependent libraries for dlopen(). */
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#undef LTDL_DLOPEN_DEPLIBS
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@ -514,9 +511,6 @@
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/* Define to the system default library search path. */
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#undef LTDL_SYSSEARCHPATH
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/* Define if this target is big endian */
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#undef MSB_FIRST
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/* Define if /dev/zero should be used when mapping RWX memory, or undefine if
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its not necessary */
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#undef NEED_DEV_ZERO_FOR_MMAP
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36
include/llvm/System/Host.h
Normal file
36
include/llvm/System/Host.h
Normal file
@ -0,0 +1,36 @@
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//===- llvm/System/Host.h - Host machine characteristics --------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Duncan Sands and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Methods for querying the nature of the host machine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_HOST_H
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#define LLVM_SYSTEM_HOST_H
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namespace llvm {
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namespace sys {
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inline bool littleEndianHost() {
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union {
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int i;
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char c;
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};
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i = 1;
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return c;
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}
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inline bool bigEndianHost() {
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return !littleEndianHost();
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}
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}
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}
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#endif
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@ -142,10 +142,6 @@ public:
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bool isLittleEndian() const { return LittleEndian; }
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bool isBigEndian() const { return !LittleEndian; }
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/// Host endianness.
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bool hostIsLittleEndian() const;
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bool hostIsBigEndian() const { return !hostIsLittleEndian(); }
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/// getStringRepresentation - Return the string representation of the
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/// TargetData. This representation is in the same format accepted by the
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/// string constructor above.
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@ -23,6 +23,7 @@
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/MutexGuard.h"
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#include "llvm/System/DynamicLibrary.h"
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#include "llvm/System/Host.h"
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#include "llvm/Target/TargetData.h"
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#include <math.h>
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using namespace llvm;
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@ -637,7 +638,7 @@ void ExecutionEngine::StoreValueToMemory(const GenericValue &Val, GenericValue *
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uint8_t *Src = (uint8_t *)Val.IntVal.getRawData();
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uint8_t *Dst = (uint8_t *)Ptr;
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if (getTargetData()->hostIsLittleEndian())
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if (sys::littleEndianHost())
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// Little-endian host - the source is ordered from LSB to MSB.
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// Order the destination from LSB to MSB: Do a straight copy.
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memcpy(Dst, Src, StoreBytes);
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@ -698,7 +699,7 @@ void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
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uint8_t *Src = (uint8_t *)Ptr;
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uint8_t *Dst = (uint8_t *)Result.IntVal.getRawData();
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if (getTargetData()->hostIsLittleEndian())
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if (sys::littleEndianHost())
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// Little-endian host - the destination must be ordered from LSB to MSB.
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// The source is ordered from LSB to MSB: Do a straight copy.
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memcpy(Dst, Src, LoadBytes);
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@ -25,7 +25,6 @@
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Config/config.h"
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#include <algorithm>
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#include <cstdlib>
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#include <sstream>
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@ -133,14 +132,6 @@ const TargetAlignElem TargetData::InvalidAlignmentElem =
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// TargetData Class Implementation
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//===----------------------------------------------------------------------===//
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bool TargetData::hostIsLittleEndian() const {
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#ifdef LSB_FIRST
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return true;
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#else
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return false;
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#endif
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}
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/*!
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A TargetDescription string consists of a sequence of hyphen-delimited
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specifiers for target endianness, pointer size and alignments, and various
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