/* Definitions for SH running Linux-based GNU systems using ELF
- Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999-2017 Free Software Foundation, Inc.
Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* Run-time Target Specification. */
-#undef TARGET_VERSION
-#define TARGET_VERSION fputs (" (SH GNU/Linux with ELF)", stderr);
-
-/* We're not SYSVR4, not having /usr/ccs */
-#undef MD_EXEC_PREFIX
-#undef MD_STARTFILE_PREFIX
-
-/* This was defined in linux.h. Define it here also. */
-#define HANDLE_PRAGMA_PACK_PUSH_POP
-
-/* Don't assume anything about the header files. */
-#define NO_IMPLICIT_EXTERN_C
-
-/* The GNU C++ standard library requires that these macros be defined. */
-#undef CPLUSPLUS_CPP_SPEC
-#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
/* Enable DWARF 2 exceptions. */
#undef DWARF2_UNWIND_INFO
#define DWARF2_UNWIND_INFO 1
-#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
- (flag_pic \
- ? ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4 \
- : DW_EH_PE_absptr)
-
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "\
%{posix:-D_POSIX_SOURCE} \
"
#define TARGET_OS_CPP_BUILTINS() \
-do { \
- builtin_define_std ("unix"); \
- builtin_define ("__gnu_linux__"); \
- builtin_define_std ("linux"); \
- builtin_assert ("system=posix"); \
-} while (0)
+ do \
+ { \
+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \
+ } \
+ while (0)
#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
- (TARGET_CPU_DEFAULT | USERMODE_BIT | TARGET_ENDIAN_DEFAULT)
+ (TARGET_CPU_DEFAULT | TARGET_ENDIAN_DEFAULT | TARGET_OPT_DEFAULT)
#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+#if TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
+#define MUSL_DYNAMIC_LINKER_E "%{mb:eb}"
+#else
+#define MUSL_DYNAMIC_LINKER_E "%{!ml:eb}"
+#endif
+
+#if TARGET_CPU_DEFAULT & (MASK_HARD_SH2A_DOUBLE | MASK_SH4)
+/* "-nofpu" if any nofpu option is specified. */
+#define MUSL_DYNAMIC_LINKER_FP \
+ "%{m1|m2|m2a-nofpu|m3|m4-nofpu|m4-100-nofpu|m4-200-nofpu|m4-300-nofpu|" \
+ "m4-340|m4-400|m4-500|m4al:-nofpu}"
+#else
+/* "-nofpu" if none of the hard fpu options are specified. */
+#define MUSL_DYNAMIC_LINKER_FP "%{m2a|m4|m4-100|m4-200|m4-300|m4a:;:-nofpu}"
+#endif
+
+#undef MUSL_DYNAMIC_LINKER
+#define MUSL_DYNAMIC_LINKER \
+ "/lib/ld-musl-sh" MUSL_DYNAMIC_LINKER_E MUSL_DYNAMIC_LINKER_FP \
+ "%{mfdpic:-fdpic}.so.1"
+
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
#undef SUBTARGET_LINK_EMUL_SUFFIX
-#define SUBTARGET_LINK_EMUL_SUFFIX "_linux"
+#define SUBTARGET_LINK_EMUL_SUFFIX "%{mfdpic:_fd;:_linux}"
+
#undef SUBTARGET_LINK_SPEC
#define SUBTARGET_LINK_SPEC \
"%{shared:-shared} \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
%{static:-static}"
-#undef LIB_SPEC
-#define LIB_SPEC \
- "%{pthread:-lpthread} \
- %{shared: -lc} \
- %{!static:-rpath-link %R/lib:%R/usr/lib} \
- %{!shared: \
- %{mieee-fp:-lieee} \
- %{profile:-lc_p} %{!profile: -lc}}"
-
-#if defined(HAVE_LD_EH_FRAME_HDR)
-#undef LINK_EH_SPEC
-#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
-#endif
-
-#undef STARTFILE_SPEC
-#if defined HAVE_LD_PIE
-#define STARTFILE_SPEC \
- "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
- crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
-#else
-#define STARTFILE_SPEC \
- "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
- crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
-#endif
-
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC \
- "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
-
-#define LINK_GCC_C_SEQUENCE_SPEC \
- "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
-
/* Output assembler code to STREAM to call the profiler. */
-
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(STREAM,LABELNO) \
do { \
- if (flag_pic) \
- { \
- fprintf (STREAM, "\tmov.l\t3f,r1\n"); \
- fprintf (STREAM, "\tmova\t3f,r0\n"); \
- fprintf (STREAM, "\tadd\tr1,r0\n"); \
- fprintf (STREAM, "\tmov.l\t1f,r1\n"); \
- fprintf (STREAM, "\tmov.l\t@(r0,r1),r1\n"); \
- } \
- else \
- fprintf (STREAM, "\tmov.l\t1f,r1\n"); \
- fprintf (STREAM, "\tsts.l\tpr,@-r15\n"); \
- fprintf (STREAM, "\tmova\t2f,r0\n"); \
- fprintf (STREAM, "\tjmp\t@r1\n"); \
- fprintf (STREAM, "\tlds\tr0,pr\n"); \
- fprintf (STREAM, "\t.align\t2\n"); \
- if (flag_pic) \
- { \
- fprintf (STREAM, "1:\t.long\tmcount@GOT\n"); \
- fprintf (STREAM, "3:\t.long\t_GLOBAL_OFFSET_TABLE_\n"); \
- } \
- else \
- fprintf (STREAM, "1:\t.long\tmcount\n"); \
- fprintf (STREAM, "2:\tlds.l\t@r15+,pr\n"); \
+ if (flag_pic) \
+ { \
+ fprintf (STREAM, "\tmov.l\t3f,r1\n"); \
+ fprintf (STREAM, "\tmova\t3f,r0\n"); \
+ fprintf (STREAM, "\tadd\tr1,r0\n"); \
+ fprintf (STREAM, "\tmov.l\t1f,r1\n"); \
+ fprintf (STREAM, "\tmov.l\t@(r0,r1),r1\n"); \
+ } \
+ else \
+ fprintf (STREAM, "\tmov.l\t1f,r1\n"); \
+ fprintf (STREAM, "\tsts.l\tpr,@-r15\n"); \
+ fprintf (STREAM, "\tmova\t2f,r0\n"); \
+ fprintf (STREAM, "\tjmp\t@r1\n"); \
+ fprintf (STREAM, "\tlds\tr0,pr\n"); \
+ fprintf (STREAM, "\t.align\t2\n"); \
+ if (flag_pic) \
+ { \
+ fprintf (STREAM, "1:\t.long\tmcount@GOT\n"); \
+ fprintf (STREAM, "3:\t.long\t_GLOBAL_OFFSET_TABLE_\n"); \
+ } \
+ else \
+ fprintf (STREAM, "1:\t.long\tmcount\n"); \
+ fprintf (STREAM, "2:\tlds.l\t@r15+,pr\n"); \
} while (0)
-/* Do code reading to identify a signal frame, and set the frame
- state data appropriately. See unwind-dw2.c for the structs. */
-
-#ifdef IN_LIBGCC2
-#include <signal.h>
-#include <sys/ucontext.h>
-#include "insn-constants.h"
-
-# if defined (__SH5__)
-#define SH_DWARF_FRAME_GP0 0
-#define SH_DWARF_FRAME_FP0 (__SH5__ == 32 ? 245 : 77)
-#define SH_DWARF_FRAME_XD0 289
-#define SH_DWARF_FRAME_BT0 68
-#define SH_DWARF_FRAME_PR 241
-#define SH_DWARF_FRAME_PR_MEDIA 18
-#define SH_DWARF_FRAME_GBR 238
-#define SH_DWARF_FRAME_MACH 239
-#define SH_DWARF_FRAME_MACL 240
-#define SH_DWARF_FRAME_PC 64
-#define SH_DWARF_FRAME_SR 65
-#define SH_DWARF_FRAME_FPUL 244
-#define SH_DWARF_FRAME_FPSCR 243
-#else
-#define SH_DWARF_FRAME_GP0 0
-#define SH_DWARF_FRAME_FP0 25
-#define SH_DWARF_FRAME_XD0 87
-#define SH_DWARF_FRAME_PR 17
-#define SH_DWARF_FRAME_GBR 19
-#define SH_DWARF_FRAME_MACH 20
-#define SH_DWARF_FRAME_MACL 21
-#define SH_DWARF_FRAME_PC 16
-#define SH_DWARF_FRAME_SR 22
-#define SH_DWARF_FRAME_FPUL 23
-#define SH_DWARF_FRAME_FPSCR 24
-#endif /* defined (__SH5__) */
-
-#if defined (__SH5__)
-/* MD_FALLBACK_FRAME_STATE_FOR is not yet defined for SHMEDIA. */
-#else /* defined (__SH5__) */
-
-#if defined (__SH3E__) || defined (__SH4__)
-#define SH_FALLBACK_FRAME_FLOAT_STATE(SC, FS, CFA) \
- do { \
- int i_, r_; \
- \
- r_ = SH_DWARF_FRAME_FP0; \
- for (i_ = 0; i_ < 16; i_++) \
- { \
- (FS)->regs.reg[r_+i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[r_+i_].loc.offset \
- = (long)&((SC)->sc_fpregs[i_]) - (CFA); \
- } \
- \
- r_ = SH_DWARF_FRAME_XD0 ; \
- for (i_ = 0; i_ < 8; i_++) \
- { \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset \
- = (long)&((SC)->sc_xfpregs[2*i_]) - (CFA); \
- } \
- \
- (FS)->regs.reg[SH_DWARF_FRAME_FPUL].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_FPUL].loc.offset \
- = (long)&((SC)->sc_fpul) - (CFA); \
- (FS)->regs.reg[SH_DWARF_FRAME_FPSCR].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_FPSCR].loc.offset \
- = (long)&((SC)->sc_fpscr) - (CFA); \
- } while (0)
-
-#else
-#define SH_FALLBACK_FRAME_FLOAT_STATE(SC, FS, CFA)
-#endif
-
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- unsigned char *pc_ = (CONTEXT)->ra; \
- struct sigcontext *sc_; \
- long new_cfa_; \
- int i_; \
- \
- /* mov.w 1f,r3; trapa #0x10; 1: .short 0x77 (sigreturn) */ \
- /* mov.w 1f,r3; trapa #0x10; 1: .short 0xad (rt_sigreturn) */ \
- /* Newer kernel uses pad instructions to avoid an SH-4 core bug. */\
- /* mov.w 1f,r3; trapa #0x10; or r0,r0; or r0,r0; or r0,r0; or r0,r0;\
- or r0,r0; 1: .short 0x77 (sigreturn) */ \
- /* mov.w 1f,r3; trapa #0x10; or r0,r0; or r0,r0; or r0,r0; or r0,r0;\
- or r0,r0; 1: .short 0xad (rt_sigreturn) */ \
- if (((*(unsigned short *) (pc_+0) == 0x9300) \
- && (*(unsigned short *) (pc_+2) == 0xc310) \
- && (*(unsigned short *) (pc_+4) == 0x0077)) \
- || (((*(unsigned short *) (pc_+0) == 0x9305) \
- && (*(unsigned short *) (pc_+2) == 0xc310) \
- && (*(unsigned short *) (pc_+14) == 0x0077)))) \
- sc_ = (CONTEXT)->cfa; \
- else if (((*(unsigned short *) (pc_+0) == 0x9300) \
- && (*(unsigned short *) (pc_+2) == 0xc310) \
- && (*(unsigned short *) (pc_+4) == 0x00ad)) \
- || (((*(unsigned short *) (pc_+0) == 0x9305) \
- && (*(unsigned short *) (pc_+2) == 0xc310) \
- && (*(unsigned short *) (pc_+14) == 0x00ad)))) \
- { \
- struct rt_sigframe { \
- struct siginfo info; \
- struct ucontext uc; \
- } *rt_ = (CONTEXT)->cfa; \
- sc_ = (struct sigcontext *) &rt_->uc.uc_mcontext; \
- } \
- else \
- break; \
- \
- new_cfa_ = sc_->sc_regs[15]; \
- (FS)->cfa_how = CFA_REG_OFFSET; \
- (FS)->cfa_reg = 15; \
- (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
- \
- for (i_ = 0; i_ < 15; i_++) \
- { \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset \
- = (long)&(sc_->sc_regs[i_]) - new_cfa_; \
- } \
- \
- (FS)->regs.reg[SH_DWARF_FRAME_PR].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_PR].loc.offset \
- = (long)&(sc_->sc_pr) - new_cfa_; \
- (FS)->regs.reg[SH_DWARF_FRAME_SR].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_SR].loc.offset \
- = (long)&(sc_->sc_sr) - new_cfa_; \
- (FS)->regs.reg[SH_DWARF_FRAME_GBR].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_GBR].loc.offset \
- = (long)&(sc_->sc_gbr) - new_cfa_; \
- (FS)->regs.reg[SH_DWARF_FRAME_MACH].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_MACH].loc.offset \
- = (long)&(sc_->sc_mach) - new_cfa_; \
- (FS)->regs.reg[SH_DWARF_FRAME_MACL].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_MACL].loc.offset \
- = (long)&(sc_->sc_macl) - new_cfa_; \
- \
- SH_FALLBACK_FRAME_FLOAT_STATE(sc_, (FS), new_cfa_); \
- \
- /* The unwinder expects the PC to point to the following insn, \
- whereas the kernel returns the address of the actual \
- faulting insn. */ \
- sc_->sc_pc += 2; \
- (FS)->regs.reg[SH_DWARF_FRAME_PC].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SH_DWARF_FRAME_PC].loc.offset \
- = (long)&(sc_->sc_pc) - new_cfa_; \
- (FS)->retaddr_column = SH_DWARF_FRAME_PC; \
- goto SUCCESS; \
- } while (0)
-
-#endif /* defined (__SH5__) */
-#endif /* IN_LIBGCC2 */
-
/* For SH3 and SH4, we use a slot of the unwind frame which correspond
to a fake register number 16 as a placeholder for the return address
in MD_FALLBACK_FRAME_STATE_FOR and its content will be read with
so as to return itself for 16. */
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(REGNO) \
- ((! TARGET_SH5 && (REGNO) == 16) ? 16 : SH_DBX_REGISTER_NUMBER (REGNO))
+ (((REGNO) == 16) ? 16 : SH_DBX_REGISTER_NUMBER (REGNO))
+
+/* Install the __sync libcalls. */
+#undef TARGET_INIT_LIBFUNCS
+#define TARGET_INIT_LIBFUNCS sh_init_sync_libfuncs
+
+#undef SUBTARGET_OVERRIDE_OPTIONS
+#define SUBTARGET_OVERRIDE_OPTIONS \
+ do \
+ { \
+ /* Set default atomic model if it hasn't been specified. */ \
+ if (global_options_set.x_sh_atomic_model_str == 0) \
+ { \
+ if (TARGET_SH3) \
+ sh_atomic_model_str = "soft-gusa"; \
+ else if (TARGET_SH1) \
+ sh_atomic_model_str = "soft-imask"; \
+ } \
+ /* Set -musermode if it hasn't been specified. */ \
+ if (global_options_set.x_TARGET_USERMODE == 0) \
+ TARGET_USERMODE = true; \
+ } \
+ while (0)
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