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Fix x86_64 BuildConfig issues

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* Resolve TODO: HOST_GCC_BASE_FLAGS should not be included in
  HOST_LDFLAGS. Enable adding "-fno-strict-aliasing -fno-tree-vrp"
  accordingly.
* Fix handling of HOST_PLATFORM_IS_64_BIT and HAIKU_HOST_USE_32BIT: The
  former does now state whether the platform is effectively treated as
  64 bit platform, i.e. it actually is 64 bit and the 32 bit mode is
  not enforced. HAIKU_HOST_USE_32BIT is now only set when the platform
  is actually 64 bit, but 32 bit mode is enforced.
This commit is contained in:
Ingo Weinhold 2011-06-16 22:53:44 +02:00
parent 1c2d7d3a86
commit cd3e093133
1 changed files with 25 additions and 16 deletions
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41
build/jam/BuildSetup
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@ -136,13 +136,10 @@ if $(HAIKU_USE_GCC_PIPE) = 1 {
if $(HAIKU_GCC_VERSION[1]) >= 3 {
HAIKU_GCC_BASE_FLAGS += -fno-strict-aliasing -fno-tree-vrp ;
}
# TODO: With Haiku as the host platform, this does not appear to be set up
# correctly, at least when compiling the libbe_test target platform. When
# enabling the lines below, these flags suddenly appear as link flags passed
# to ld as well.
#if $(HOST_GCC_VERSION[1]) >= 3 {
# HOST_GCC_BASE_FLAGS += -fno-strict-aliasing -fno-tree-vrp ;
#}
if $(HOST_GCC_VERSION[1]) >= 3 {
HOST_GCC_BASE_FLAGS += -fno-strict-aliasing -fno-tree-vrp ;
}
# override gcc 2.95.3's header directory -- strictly necessary only when using
# the BeOS native compiler (since its headers are incompatible), but it doesn't
@ -545,14 +542,26 @@ HAIKU_BUILD_DESCRIPTION ?= "Unknown Build" ;
# analyze the host gcc machine spec to find out about 64-bitness
HOST_PLATFORM_IS_64_BIT = ;
switch $(HOST_GCC_MACHINE) {
case amd64-* : HOST_PLATFORM_IS_64_BIT = 1 ;
case i686-apple-darwin10 : HOST_PLATFORM_IS_64_BIT = 1 ;
case x86_64-* : HOST_PLATFORM_IS_64_BIT = 1 ;
}
# If HAIKU_HOST_USE_32BIT is set, add the required gcc base flag (the LD flag
# is set later), or, if the architecture isn't actually 64 bit, clear
# HAIKU_HOST_USE_32BIT.
# Afterwards HOST_PLATFORM_IS_64_BIT will indicate whether the architecture is
# effectively (i.e. when using the compiler/linker flags) 64 bit and
# HAIKU_HOST_USE_32BIT will be set, iff the architecture is really 64 bit and
# 32 bit mode was requested.
if $(HAIKU_HOST_USE_32BIT) = 1 {
# enable GCC -m32 option
HOST_GCC_BASE_FLAGS = -m32 ;
} else {
switch $(HOST_GCC_MACHINE) {
case amd64-* : HOST_PLATFORM_IS_64_BIT = 1 ;
case i686-apple-darwin10 : HOST_PLATFORM_IS_64_BIT = 1 ;
case x86_64-* : HOST_PLATFORM_IS_64_BIT = 1 ;
if $(HOST_PLATFORM_IS_64_BIT) {
# enable GCC -m32 option
HOST_GCC_BASE_FLAGS = -m32 ;
HOST_PLATFORM_IS_64_BIT = ;
} else {
HAIKU_HOST_USE_32BIT = 0 ;
}
}
@ -566,7 +575,7 @@ HOST_RANLIB ?= $(RANLIB) ;
HOST_CPPFLAGS ?= $(CPPFLAGS) ;
HOST_CCFLAGS ?= $(HOST_GCC_BASE_FLAGS) $(CCFLAGS) ;
HOST_C++FLAGS ?= $(HOST_GCC_BASE_FLAGS) $(C++FLAGS) ;
HOST_LDFLAGS ?= $(HOST_GCC_BASE_FLAGS) $(LDFLAGS) ;
HOST_LDFLAGS ?= $(LDFLAGS) ;
HOST_LINKFLAGS ?= $(HOST_GCC_BASE_FLAGS) $(LINKFLAGS) ;
HOST_DEFINES ?= $(DEFINES) ;
HOST_HDRS ?= $(HDRS) ;
@ -704,7 +713,7 @@ for level in $(HAIKU_DEBUG_LEVELS[2-]) {
}
# ld flags
if $(HOST_ARCH) = x86_64 && $(HAIKU_HOST_USE_32BIT) = 1 {
if $(HAIKU_HOST_USE_32BIT) = 1 {
HOST_LDFLAGS += -melf_i386 ;
}