/* Target definitions for PowerPC running Darwin (Mac OS X).
- Copyright (C) 1997-2013 Free Software Foundation, Inc.
+ Copyright (C) 1997-2020 Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
This file is part of GCC.
/* We're not ever going to do TOCs. */
-#define TARGET_TOC 0
-#define TARGET_NO_TOC 1
+#define TARGET_HAS_TOC 0
/* Override the default rs6000 definition. */
#undef PTRDIFF_TYPE
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
- if (!TARGET_64BIT) builtin_define ("__ppc__"); \
- if (TARGET_64BIT) builtin_define ("__ppc64__"); \
builtin_define ("__POWERPC__"); \
+ builtin_define ("__PPC__"); \
+ if (TARGET_64BIT) \
+ { \
+ builtin_define ("__ppc64__"); \
+ builtin_define ("__PPC64__"); \
+ builtin_define ("__powerpc64__"); \
+ builtin_assert ("cpu=powerpc64"); \
+ builtin_assert ("machine=powerpc64"); \
+ } \
+ else \
+ { \
+ builtin_define ("__ppc__"); \
+ builtin_define_std ("PPC"); \
+ builtin_assert ("cpu=powerpc"); \
+ builtin_assert ("machine=powerpc"); \
+ } \
builtin_define ("__NATURAL_ALIGNMENT__"); \
darwin_cpp_builtins (pfile); \
} \
while (0)
-/* Generate branch islands stubs if this is true. */
-extern int darwin_emit_branch_islands;
-
#define SUBTARGET_OVERRIDE_OPTIONS darwin_rs6000_override_options ()
#define C_COMMON_OVERRIDE_OPTIONS do { \
#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
+/* Machine dependent libraries.
+ Include libmx when targeting Darwin 7.0 and above, but before libSystem,
+ since the functions are actually in libSystem but for 7.x compatibility
+ we want them to be looked for in libmx first.
+ Include libSystemStubs when compiling against 10.3 - 10.5 SDKs (we assume
+ this is the case when targetting these) - but not for 64-bit long double.
+ Don't do either for m64, the library is either a dummy or non-existent.
+*/
+
+#undef LIB_SPEC
+#define LIB_SPEC \
+"%{!static: \
+ %{!m64:%{!mlong-double-64: \
+ %{pg:%:version-compare(>< 10.3 10.5 mmacosx-version-min= -lSystemStubs_profile)} \
+ %{!pg:%:version-compare(>< 10.3 10.5 mmacosx-version-min= -lSystemStubs)} \
+ %:version-compare(>< 10.3 10.4 mmacosx-version-min= -lmx)}} \
+ -lSystem \
+}"
/* We want -fPIC by default, unless we're using -static to compile for
the kernel or some such. The "-faltivec" option should have been
%(cc1_cpu) \
%{g: %{!fno-eliminate-unused-debug-symbols: -feliminate-unused-debug-symbols }} \
%{static: %{Zdynamic: %e conflicting code gen style switches are used}}\
- %{!mmacosx-version-min=*:-mmacosx-version-min=%(darwin_minversion)} \
%{!mkernel:%{!static:%{!mdynamic-no-pic:-fPIC}}} \
%{faltivec:-maltivec -include altivec.h} %{fno-altivec:-mno-altivec} \
%<faltivec %<fno-altivec " \
DARWIN_CC1_SPEC
-#define DARWIN_ARCH_SPEC "%{m64:ppc64;:ppc}"
+/* Default to PPC for single arch builds. */
+#define DARWIN_ARCH_SPEC "ppc"
#define DARWIN_SUBARCH_SPEC " \
- %{m64: ppc64} \
- %{!m64: \
%{mcpu=601:ppc601; \
mcpu=603:ppc603; \
mcpu=603e:ppc603; \
mcpu=970:ppc970; \
mcpu=power4:ppc970; \
mcpu=G5:ppc970; \
- :ppc}}"
-
-/* crt2.o is at least partially required for 10.3.x and earlier. */
+ :ppc}"
+
+/* We need to jam the crt to 10.5 for 10.6 (Rosetta) use. */
+#undef DARWIN_CRT1_SPEC
+#define DARWIN_CRT1_SPEC \
+ "%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o) \
+ %:version-compare(>< 10.5 10.7 mmacosx-version-min= -lcrt1.10.5.o) \
+ %{fgnu-tm: -lcrttms.o}"
+
+/* crt2.o is at least partially required for 10.3.x and earlier.
+ It deals with registration of the unwind frames, where this is not
+ automatically provided by the system. So we need it for any case that
+ might use exceptions. */
+#undef DARWIN_CRT2_SPEC
#define DARWIN_CRT2_SPEC \
- "%{!m64:%:version-compare(!> 10.4 mmacosx-version-min= crt2.o%s)}"
-
-/* Determine a minimum version based on compiler options. */
-#define DARWIN_MINVERSION_SPEC \
- "%{m64:%{fgnu-runtime:10.4; \
- ,objective-c|,objc-cpp-output:10.5; \
- ,objective-c-header:10.5; \
- ,objective-c++|,objective-c++-cpp-output:10.5; \
- ,objective-c++-header|,objc++-cpp-output:10.5; \
- :10.4}; \
- shared-libgcc:10.3; \
- :10.1}"
+"%{!m64:%{shared-libgcc|static-libstdc++|fexceptions|fobjc-exceptions|fgnu-runtime: \
+ %:version-compare(!> 10.4 mmacosx-version-min= crt2.o%s) \
+ }}"
+
+/* crt3 deals with providing cxa_atexit on earlier systems (or fixing it up,
+ for broken versions). It's only needed for c++ code, so we can make it
+ conditional on shared-libgcc since that's forced on for c++. */
+#undef DARWIN_CRT3_SPEC
+#define DARWIN_CRT3_SPEC \
+"%{!m64:%{shared-libgcc|static-libstdc++: \
+ %:version-compare(>< 10.4 10.5 mmacosx-version-min= crt3.o%s) \
+ %:version-compare(!> 10.4 mmacosx-version-min= crt3_2.o%s) \
+ }}"
+
+/* As for crt1, we need to force the dylib crt for 10.6. */
+#undef DARWIN_DYLIB1_SPEC
+#define DARWIN_DYLIB1_SPEC \
+ "%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \
+ %:version-compare(>< 10.5 10.7 mmacosx-version-min= -ldylib1.10.5.o)"
+
+/* Likewise, the bundle crt. */
+#undef DARWIN_BUNDLE1_SPEC
+#define DARWIN_BUNDLE1_SPEC \
+"%{!static:%:version-compare(< 10.7 mmacosx-version-min= -lbundle1.o) \
+ %{fgnu-tm: -lcrttms.o}}"
+
+/* The PPC regs save/restore functions are leaves and could, conceivably
+ be used by the tm destructor. */
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC TM_DESTRUCTOR " -lef_ppc"
#undef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
#undef RS6000_PIC_OFFSET_TABLE_REGNUM
#define RS6000_PIC_OFFSET_TABLE_REGNUM 31
-/* Pad the outgoing args area to 16 bytes instead of the usual 8. */
+/* Darwin's stack must remain 16-byte aligned for both 32 and 64 bit
+ ABIs. */
+
+#undef STACK_BOUNDARY
+#define STACK_BOUNDARY 128
+
+/* Offset within stack frame to start allocating local variables at.
+ For supported Darwin versions, FRAME_GROWS_DOWNWARD is true, therefore
+ this value is the offset to the END of the first local allocated.
+
+ On the RS/6000, the frame pointer is the same as the stack pointer,
+ except for dynamic allocations. So we start after the fixed area and
+ outgoing parameter area.
+
+ If the function uses dynamic stack space (CALLS_ALLOCA is set), that
+ space needs to be aligned to STACK_BOUNDARY, i.e. the sum of the
+ sizes of the fixed area and the parameter area must be a multiple of
+ STACK_BOUNDARY. */
+
+#undef RS6000_STARTING_FRAME_OFFSET
+#define RS6000_STARTING_FRAME_OFFSET \
+ (cfun->calls_alloca \
+ ? RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, 16) \
+ : (RS6000_ALIGN (crtl->outgoing_args_size, 16) + RS6000_SAVE_AREA))
-#undef STARTING_FRAME_OFFSET
-#define STARTING_FRAME_OFFSET \
- (FRAME_GROWS_DOWNWARD \
- ? 0 \
- : (RS6000_ALIGN (crtl->outgoing_args_size, 16) \
- + RS6000_SAVE_AREA))
+/* Offset from the stack pointer register to an item dynamically
+ allocated on the stack, e.g., by `alloca'.
+
+ The default value for this macro is `STACK_POINTER_OFFSET' plus the
+ length of the outgoing arguments. The default is correct for most
+ machines. See `function.c' for details.
+
+ This value must be a multiple of STACK_BOUNDARY (hard coded in
+ `emit-rtl.c'). */
#undef STACK_DYNAMIC_OFFSET
#define STACK_DYNAMIC_OFFSET(FUNDECL) \
- (RS6000_ALIGN (crtl->outgoing_args_size, 16) \
- + (STACK_POINTER_OFFSET))
+ RS6000_ALIGN (crtl->outgoing_args_size.to_constant() \
+ + STACK_POINTER_OFFSET, 16)
/* Darwin uses a function call if everything needs to be saved/restored. */
#undef REGISTER_NAMES
#define REGISTER_NAMES \
{ \
+ /* GPRs */ \
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
+ /* FPRs */ \
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
- "mq", "lr", "ctr", "ap", \
+ /* VRs */ \
+ "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", \
+ "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", \
+ "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", \
+ "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", \
+ /* lr ctr ca ap */ \
+ "lr", "ctr", "xer", "ap", \
+ /* cr0..cr7 */ \
"cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \
- "xer", \
- "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", \
- "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", \
- "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", \
- "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", \
- "vrsave", "vscr", \
- "spe_acc", "spefscr", \
- "sfp", \
- "tfhar", "tfiar", "texasr" \
+ /* vrsave vscr sfp */ \
+ "vrsave", "vscr", "sfp" \
}
/* This outputs NAME to FILE. */
/* This is supported in cctools 465 and later. The macro test
above prevents using it in earlier build environments. */
#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
- if ((LOG) != 0) \
+ if ((LOG) > 0) \
{ \
- if ((MAX_SKIP) == 0) \
+ if ((MAX_SKIP) <= 0) \
fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
else \
fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
#undef TARGET_IEEEQUAD
#define TARGET_IEEEQUAD 0
+#undef TARGET_IEEEQUAD_DEFAULT
+#define TARGET_IEEEQUAD_DEFAULT 0
+
/* Since Darwin doesn't do TOCs, stub this out. */
#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) ((void)X, (void)MODE, 0)
((CONSTANT_P (X) \
&& reg_classes_intersect_p ((CLASS), FLOAT_REGS)) \
? NO_REGS \
- : ((GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == HIGH) \
+ : ((SYMBOL_REF_P (X) || GET_CODE (X) == HIGH) \
&& reg_class_subset_p (BASE_REGS, (CLASS))) \
? BASE_REGS \
: (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \
- && (CLASS) == NON_SPECIAL_REGS) \
+ && (CLASS) == GEN_OR_FLOAT_REGS) \
? GENERAL_REGS \
: (CLASS))
-/* Compute field alignment. This is similar to the version of the
- macro in the Apple version of GCC, except that version supports
- 'mac68k' alignment, and that version uses the computed alignment
- always for the first field of a structure. The first-field
- behavior is dealt with by
- darwin_rs6000_special_round_type_align. */
-#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
- (TARGET_ALIGN_NATURAL ? (COMPUTED) \
- : (COMPUTED) == 128 ? 128 \
- : MIN ((COMPUTED), 32))
+/* Compute field alignment.
+ This implements the 'power' alignment rule by pegging the alignment of
+ items (beyond the first aggregate field) to 32 bits. The pegging is
+ suppressed for vector and long double items (both 128 in size).
+ There is a dummy use of the FIELD argument to avoid an unused variable
+ warning (see PR59496). */
+#define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \
+ ((void) (FIELD), \
+ (TARGET_ALIGN_NATURAL \
+ ? (COMPUTED) \
+ : (COMPUTED) == 128 \
+ ? 128 \
+ : MIN ((COMPUTED), 32)))
/* Darwin increases natural record alignment to doubleword if the first
field is an FP double while the FP fields remain word aligned. */
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))
#define DOUBLE_INT_ASM_OP "\t.quad\t"
do \
{ \
DARWIN_REGISTER_TARGET_PRAGMAS(); \
+ targetm.target_option.pragma_parse = rs6000_pragma_target_parse; \
targetm.resolve_overloaded_builtin = altivec_resolve_overloaded_builtin; \
} \
while (0)
/* So far, there is no rs6000_fold_builtin, if one is introduced, then
this will need to be modified similar to the x86 case. */
#define TARGET_FOLD_BUILTIN SUBTARGET_FOLD_BUILTIN
+
+/* First available SYMBOL flag bit for use by subtargets. */
+#define SYMBOL_FLAG_SUBT_DEP (SYMBOL_FLAG_MACH_DEP)
+
+/* Use standard DWARF numbering for DWARF debugging information. */
+#define RS6000_USE_DWARF_NUMBERING
+
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