/* Definitions of target machine for GNU compiler,
for 64 bit PowerPC linux.
- Copyright (C) 2000-2013 Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of GCC.
#ifndef RS6000_BI_ARCH
-#undef DEFAULT_ABI
-#define DEFAULT_ABI ABI_AIX
-
#undef TARGET_64BIT
#define TARGET_64BIT 1
#define TARGET_PROFILE_KERNEL profile_kernel
+#undef TARGET_KEEP_LEAF_WHEN_PROFILED
+#define TARGET_KEEP_LEAF_WHEN_PROFILED rs6000_keep_leaf_when_profiled
+
#define TARGET_USES_LINUX64_OPT 1
#ifdef HAVE_LD_LARGE_TOC
#undef TARGET_CMODEL
#undef PROCESSOR_DEFAULT
#define PROCESSOR_DEFAULT PROCESSOR_POWER7
#undef PROCESSOR_DEFAULT64
-#define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
+#define PROCESSOR_DEFAULT64 PROCESSOR_POWER8
/* We don't need to generate entries in .fixup, except when
-mrelocatable or -mrelocatable-lib is given. */
#undef RS6000_ABI_NAME
#define RS6000_ABI_NAME "linux"
-#define INVALID_64BIT "-m%s not supported in this configuration"
+#define INVALID_64BIT "%<-m%s%> not supported in this configuration"
#define INVALID_32BIT INVALID_64BIT
+#ifdef LINUX64_DEFAULT_ABI_ELFv2
+#define ELFv2_ABI_CHECK (rs6000_elf_abi != 1)
+#else
+#define ELFv2_ABI_CHECK (rs6000_elf_abi == 2)
+#endif
+
#undef SUBSUBTARGET_OVERRIDE_OPTIONS
#define SUBSUBTARGET_OVERRIDE_OPTIONS \
do \
{ \
if (!global_options_set.x_rs6000_alignment_flags) \
rs6000_alignment_flags = MASK_ALIGN_NATURAL; \
- if (TARGET_64BIT) \
+ if (rs6000_isa_flags & OPTION_MASK_64BIT) \
{ \
if (DEFAULT_ABI != ABI_AIX) \
{ \
error (INVALID_64BIT, "call"); \
} \
dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \
+ if (ELFv2_ABI_CHECK) \
+ { \
+ rs6000_current_abi = ABI_ELFv2; \
+ if (dot_symbols) \
+ error ("%<-mcall-aixdesc%> incompatible with %<-mabi=elfv2%>"); \
+ } \
if (rs6000_isa_flags & OPTION_MASK_RELOCATABLE) \
{ \
rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE; \
if ((rs6000_isa_flags & OPTION_MASK_POWERPC64) == 0) \
{ \
rs6000_isa_flags |= OPTION_MASK_POWERPC64; \
- error ("-m64 requires a PowerPC64 cpu"); \
+ error ("%<-m64%> requires a PowerPC64 cpu"); \
} \
if ((rs6000_isa_flags_explicit \
& OPTION_MASK_MINIMAL_TOC) != 0) \
{ \
if (global_options_set.x_rs6000_current_cmodel \
&& rs6000_current_cmodel != CMODEL_SMALL) \
- error ("-mcmodel incompatible with other toc options"); \
+ error ("%<-mcmodel incompatible with other toc options%>"); \
SET_CMODEL (CMODEL_SMALL); \
} \
else \
SET_CMODEL (CMODEL_MEDIUM); \
if (rs6000_current_cmodel != CMODEL_SMALL) \
{ \
- TARGET_NO_FP_IN_TOC = 0; \
- TARGET_NO_SUM_IN_TOC = 0; \
+ if (!global_options_set.x_TARGET_NO_FP_IN_TOC) \
+ TARGET_NO_FP_IN_TOC \
+ = rs6000_current_cmodel == CMODEL_MEDIUM; \
+ if (!global_options_set.x_TARGET_NO_SUM_IN_TOC) \
+ TARGET_NO_SUM_IN_TOC = 0; \
} \
} \
+ if (TARGET_PLTSEQ && DEFAULT_ABI != ABI_ELFv2) \
+ { \
+ if (global_options_set.x_rs6000_pltseq) \
+ warning (0, "%qs unsupported for this ABI", \
+ "-mpltseq"); \
+ rs6000_pltseq = false; \
+ } \
} \
else \
{ \
} \
while (0)
-#undef ASM_DEFAULT_SPEC
#undef ASM_SPEC
#undef LINK_OS_LINUX_SPEC
+#undef LINK_SECURE_PLT_SPEC
#ifndef RS6000_BI_ARCH
-#define ASM_DEFAULT_SPEC "-mppc64"
#define ASM_SPEC "%(asm_spec64) %(asm_spec_common)"
#define LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)"
+#define LINK_SECURE_PLT_SPEC ""
#else
#if DEFAULT_ARCH64_P
-#define ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
#define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
#define LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}"
+#define LINK_SECURE_PLT_SPEC "%{m32: " LINK_SECURE_PLT_DEFAULT_SPEC "}"
#else
-#define ASM_DEFAULT_SPEC "-mppc%{m64:64}"
#define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)"
#define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}"
+#define LINK_SECURE_PLT_SPEC "%{!m64: " LINK_SECURE_PLT_DEFAULT_SPEC "}"
#endif
#endif
#define ASM_SPEC32 "-a32 \
-%{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
+%{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-K PIC} \
%{memb|msdata=eabi: -memb}"
#define ASM_SPEC64 "-a64"
{ "asm_spec32", ASM_SPEC32 }, \
{ "asm_spec64", ASM_SPEC64 }, \
{ "link_os_linux_spec32", LINK_OS_LINUX_SPEC32 }, \
- { "link_os_linux_spec64", LINK_OS_LINUX_SPEC64 },
+ { "link_os_linux_spec64", LINK_OS_LINUX_SPEC64 }, \
+ { "link_os_extra_spec32", LINK_OS_EXTRA_SPEC32 }, \
+ { "link_os_extra_spec64", LINK_OS_EXTRA_SPEC64 }, \
+ { "link_os_new_dtags", LINK_OS_NEW_DTAGS_SPEC }, \
+ { "include_extra", INCLUDE_EXTRA_SPEC }, \
+ { "dynamic_linker_prefix", DYNAMIC_LINKER_PREFIX },
+
+/* Optional specs used for overriding the system include directory, default
+ -rpath links, and prefix for the dynamic linker. Normally, there are not
+ defined, but if the user configure with the --with-advance-toolchain=<xxx>
+ option, the advance-toolchain.h file will override these. */
+#ifndef INCLUDE_EXTRA_SPEC
+#define INCLUDE_EXTRA_SPEC ""
+#endif
+
+#ifndef LINK_OS_EXTRA_SPEC32
+#define LINK_OS_EXTRA_SPEC32 ""
+#endif
+
+#ifndef LINK_OS_EXTRA_SPEC64
+#define LINK_OS_EXTRA_SPEC64 ""
+#endif
+
+#ifndef LINK_OS_NEW_DTAGS_SPEC
+#define LINK_OS_NEW_DTAGS_SPEC ""
+#endif
+
+#ifndef DYNAMIC_LINKER_PREFIX
+#define DYNAMIC_LINKER_PREFIX ""
+#endif
#undef MULTILIB_DEFAULTS
#if DEFAULT_ARCH64_P
#define MULTILIB_DEFAULTS { "m32" }
#endif
+/* Split stack is only supported for 64 bit, and requires glibc >= 2.18. */
+#if TARGET_GLIBC_MAJOR * 1000 + TARGET_GLIBC_MINOR >= 2018
+# ifndef RS6000_BI_ARCH
+# define TARGET_CAN_SPLIT_STACK
+# else
+# if DEFAULT_ARCH64_P
+/* Supported, and the default is -m64 */
+# define TARGET_CAN_SPLIT_STACK_64BIT 1
+# else
+/* Supported, and the default is -m32 */
+# define TARGET_CAN_SPLIT_STACK_64BIT 0
+# endif
+# endif
+#endif
+
#ifndef RS6000_BI_ARCH
/* 64-bit PowerPC Linux always has a TOC. */
-#undef TARGET_TOC
-#define TARGET_TOC 1
+#undef TARGET_HAS_TOC
+#define TARGET_HAS_TOC 1
/* Some things from sysv4.h we don't do when 64 bit. */
#undef OPTION_RELOCATABLE
/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
#undef ADJUST_FIELD_ALIGN
-#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
- ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
+#define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \
+ (rs6000_special_adjust_field_align_p ((TYPE), (COMPUTED)) \
? 128 \
: (TARGET_64BIT \
&& TARGET_ALIGN_NATURAL == 0 \
- && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode) \
+ && TYPE_MODE (strip_array_types (TYPE)) == DFmode) \
? MIN ((COMPUTED), 32) \
: (COMPUTED))
registers and memory. FIRST is nonzero if this is the only
element. */
#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
- (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE))
+ (!(FIRST) ? PAD_UPWARD : targetm.calls.function_arg_padding (MODE, TYPE))
/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
process. */
#ifdef SINGLE_LIBC
#define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
+#define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+#define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
+#undef OPTION_MUSL
+#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
#else
#define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+#define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+#define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
+#undef OPTION_MUSL
+#define OPTION_MUSL (linux_libc == LIBC_MUSL)
#endif
-/* glibc has float and long double forms of math functions. */
-#undef TARGET_C99_FUNCTIONS
-#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
-
-/* Whether we have sincos that follows the GNU extension. */
-#undef TARGET_HAS_SINCOS
-#define TARGET_HAS_SINCOS (OPTION_GLIBC)
+/* Determine what functions are present at the runtime;
+ this includes full c99 runtime and sincos. */
+#undef TARGET_LIBC_HAS_FUNCTION
+#define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
+ if (strcmp (rs6000_abi_name, "linux") == 0 \
+ || strcmp (rs6000_abi_name, "aixdesc") == 0) \
+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \
if (TARGET_64BIT) \
{ \
builtin_define ("__PPC__"); \
while (0)
#undef CPP_OS_DEFAULT_SPEC
-#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
-
-/* The GNU C++ standard library currently requires _GNU_SOURCE being
- defined on glibc-based systems. This temporary hack accomplishes this,
- it should go away as soon as libstdc++-v3 has a real fix. */
-#undef CPLUSPLUS_CPP_SPEC
-#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
+#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux) %(include_extra)"
#undef LINK_SHLIB_SPEC
-#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
+#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}} \
+ %{static-pie:-static -pie --no-dynamic-linker -z text}"
#undef LIB_DEFAULT_SPEC
#define LIB_DEFAULT_SPEC "%(lib_linux)"
#undef LINK_OS_DEFAULT_SPEC
#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
-#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
-#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1"
-#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
-#if DEFAULT_LIBC == LIBC_UCLIBC
-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
-#elif DEFAULT_LIBC == LIBC_GLIBC
-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
+#define GLIBC_DYNAMIC_LINKER32 "%(dynamic_linker_prefix)/lib/ld.so.1"
+
+#ifdef LINUX64_DEFAULT_ABI_ELFv2
+#define GLIBC_DYNAMIC_LINKER64 \
+"%{mabi=elfv1:%(dynamic_linker_prefix)/lib64/ld64.so.1;" \
+":%(dynamic_linker_prefix)/lib64/ld64.so.2}"
#else
-#error "Unsupported DEFAULT_LIBC"
+#define GLIBC_DYNAMIC_LINKER64 \
+"%{mabi=elfv2:%(dynamic_linker_prefix)/lib64/ld64.so.2;" \
+":%(dynamic_linker_prefix)/lib64/ld64.so.1}"
#endif
-#define GNU_USER_DYNAMIC_LINKER32 \
- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
-#define GNU_USER_DYNAMIC_LINKER64 \
- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
+#undef MUSL_DYNAMIC_LINKER32
+#define MUSL_DYNAMIC_LINKER32 \
+ "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
+#undef MUSL_DYNAMIC_LINKER64
+#define MUSL_DYNAMIC_LINKER64 \
+ "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
+
+#undef DEFAULT_ASM_ENDIAN
#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+#define DEFAULT_ASM_ENDIAN " -mlittle"
#define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \
" -m elf32lppclinux", \
" -m elf32lppclinux")
" -m elf64lppc", \
" -m elf64lppc")
#else
+#define DEFAULT_ASM_ENDIAN " -mbig"
#define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \
" -m elf32lppclinux", \
" -m elf32ppclinux")
#endif
#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
- %{rdynamic:-export-dynamic} \
- -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}"
+ %{!static-pie: \
+ %{rdynamic:-export-dynamic} \
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}} \
+ %(link_os_extra_spec32)"
#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \
- %{rdynamic:-export-dynamic} \
- -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}"
+ %{!static-pie: \
+ %{rdynamic:-export-dynamic} \
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}} \
+ %(link_os_extra_spec64)"
+
+/* Use gnu-user.h LINK_GCC_SEQUENCE_SPEC for linux. */
+#undef LINK_GCC_C_SEQUENCE_SPEC
+#define LINK_GCC_C_SEQUENCE_SPEC \
+ "%{mads|myellowknife|mmvme|msim:%G %L %G;" \
+ "!mcall-*|mcall-linux:" GNU_USER_TARGET_LINK_GCC_C_SEQUENCE_SPEC ";" \
+ ":%G %L %G}"
#undef TOC_SECTION_ASM_OP
#define TOC_SECTION_ASM_OP \
#define MINIMAL_TOC_SECTION_ASM_OP \
(TARGET_64BIT \
? "\t.section\t\".toc1\",\"aw\"" \
- : ((TARGET_RELOCATABLE || flag_pic) \
+ : (flag_pic \
? "\t.section\t\".got2\",\"aw\"" \
: "\t.section\t\".got1\",\"aw\""))
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
-/* Override rs6000.h definition. */
-#undef ASM_APP_ON
-#define ASM_APP_ON "#APP\n"
-
-/* Override rs6000.h definition. */
-#undef ASM_APP_OFF
-#define ASM_APP_OFF "#NO_APP\n"
-
#undef RS6000_MCOUNT
#define RS6000_MCOUNT "_mcount"
we also do this for floating-point constants. We actually can only
do this if the FP formats of the target and host machines are the
same, but we can't check that since not every file that uses
- the macros includes real.h. We also do this when we can write the
- entry into the TOC and the entry is not larger than a TOC entry. */
+ the macros includes real.h. We also do this when we can write an
+ integer into the TOC and the entry is not larger than a TOC entry,
+ but not for -mcmodel=medium where we'll use a toc-relative load for
+ constants outside the TOC. */
#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
(TARGET_TOC \
- && (GET_CODE (X) == SYMBOL_REF \
+ && (SYMBOL_REF_P (X) \
|| (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
- && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
+ && SYMBOL_REF_P (XEXP (XEXP (X, 0), 0))) \
|| GET_CODE (X) == LABEL_REF \
- || (GET_CODE (X) == CONST_INT \
+ || (CONST_INT_P (X) \
+ && TARGET_CMODEL != CMODEL_MEDIUM \
&& GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
- || (GET_CODE (X) == CONST_DOUBLE \
+ || (CONST_DOUBLE_P (X) \
&& ((TARGET_64BIT \
&& (TARGET_MINIMAL_TOC \
|| (SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
&& ! TARGET_NO_FP_IN_TOC))) \
|| (!TARGET_64BIT \
&& !TARGET_NO_FP_IN_TOC \
- && !TARGET_RELOCATABLE \
&& SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
&& BITS_PER_WORD == HOST_BITS_PER_INT)))))
true if the symbol may be affected by dynamic relocations. */
#undef ASM_PREFERRED_EH_DATA_FORMAT
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
- ((TARGET_64BIT || flag_pic || TARGET_RELOCATABLE) \
+ (TARGET_64BIT || flag_pic \
? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \
| (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \
: DW_EH_PE_absptr)
#undef DRAFT_V4_STRUCT_RET
#define DRAFT_V4_STRUCT_RET (!TARGET_64BIT)
-#define TARGET_POSIX_IO
-
-#define LINK_GCC_C_SEQUENCE_SPEC \
- "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
-
-/* Use --as-needed -lgcc_s for eh support. */
-#ifdef HAVE_LD_AS_NEEDED
-#define USE_LD_AS_NEEDED 1
-#endif
-
#ifdef TARGET_LIBC_PROVIDES_SSP
/* ppc32 glibc provides __stack_chk_guard in -0x7008(2),
ppc64 glibc provides it at -0x7010(13). */
/* The default value isn't sufficient in 64-bit mode. */
#define STACK_CHECK_PROTECT (TARGET_64BIT ? 16 * 1024 : 12 * 1024)
+
+/* Software floating point support for exceptions and rounding modes
+ depends on the C library in use. */
+#undef TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P
+#define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \
+ rs6000_linux_float_exceptions_rounding_supported_p
+
+/* Support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV without FPRs depends
+ on glibc 2.19 or greater. */
+#if TARGET_GLIBC_MAJOR > 2 \
+ || (TARGET_GLIBC_MAJOR == 2 && TARGET_GLIBC_MINOR >= 19)
+#define RS6000_GLIBC_ATOMIC_FENV 1
+#endif
+
+/* The IEEE 128-bit emulator is only built on Linux systems. Flag that we
+ should enable the type handling for KFmode on VSX systems even if we are not
+ enabling the __float128 keyword. */
+#undef TARGET_FLOAT128_ENABLE_TYPE
+#define TARGET_FLOAT128_ENABLE_TYPE 1
projects / thirdparty / gcc.git / blobdiff