/* Definitions for SH running Linux-based GNU systems using ELF
- Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
#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 \
+ { \
+ LINUX_TARGET_OS_CPP_BUILTINS(); \
+ if (flag_pic) \
+ { \
+ builtin_define ("__PIC__"); \
+ builtin_define ("__pic__"); \
+ } \
+ } \
+ while (0)
#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
- (TARGET_CPU_DEFAULT | USERMODE_BIT | TARGET_ENDIAN_DEFAULT)
+ (TARGET_CPU_DEFAULT | MASK_USERMODE | TARGET_ENDIAN_DEFAULT \
+ | TARGET_OPT_DEFAULT)
#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
%{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"
-
/* Output assembler code to STREAM to call the profiler. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(STREAM,LABELNO) \
do { \
- if (flag_pic) \
+ if (TARGET_SHMEDIA) \
{ \
- 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"); \
+ fprintf (STREAM, "\tpt\t1f,tr1\n"); \
+ fprintf (STREAM, "\taddi.l\tr15,-8,r15\n"); \
+ fprintf (STREAM, "\tst.l\tr15,0,r18\n"); \
+ if (flag_pic) \
+ { \
+ char *gofs = "(datalabel _GLOBAL_OFFSET_TABLE_-(0f-.))"; \
+ fprintf (STREAM, "\tmovi\t((%s>>16)&0xffff),r21\n", gofs); \
+ fprintf (STREAM, "\tshori\t(%s & 0xffff),r21\n", gofs); \
+ fprintf (STREAM, "0:\tptrel/u\tr21,tr0\n"); \
+ fprintf (STREAM, "\tmovi\t((mcount@GOTPLT)&0xffff),r22\n"); \
+ fprintf (STREAM, "\tgettr\ttr0,r21\n"); \
+ fprintf (STREAM, "\tadd.l\tr21,r22,r21\n"); \
+ fprintf (STREAM, "\tld.l\tr21,0,r21\n"); \
+ fprintf (STREAM, "\tptabs\tr21,tr0\n"); \
+ } \
+ else \
+ fprintf (STREAM, "\tpt\tmcount,tr0\n"); \
+ fprintf (STREAM, "\tgettr\ttr1,r18\n"); \
+ fprintf (STREAM, "\tblink\ttr0,r63\n"); \
+ fprintf (STREAM, "1:\tld.l\tr15,0,r18\n"); \
+ fprintf (STREAM, "\taddi.l\tr15,8,r15\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) */ \
- if ((*(unsigned short *) (pc_+0) == 0x9300) \
- && (*(unsigned short *) (pc_+2) == 0xc310) \
- && (*(unsigned short *) (pc_+4) == 0x0077)) \
- sc_ = (CONTEXT)->cfa; \
- else if ((*(unsigned short *) (pc_+0) == 0x9300) \
- && (*(unsigned short *) (pc_+2) == 0xc310) \
- && (*(unsigned short *) (pc_+4) == 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_; \
+ 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"); \
} \
- \
- (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 */
+#define MD_UNWIND_SUPPORT "config/sh/linux-unwind.h"
+
+/* 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
+ _Unwind_GetGR which uses dwarf_reg_size_table to get the size of
+ the register. So the entry of dwarf_reg_size_table corresponding to
+ this slot must be set. To do this, we redefine DBX_REGISTER_NUMBER
+ 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))
+
+/* Since libgcc is compiled with -fpic for this target, we can't use
+ __sdivsi3_1 as the division strategy for -O0 and -Os. */
+#undef SH_DIV_STRATEGY_DEFAULT
+#define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2
+#undef SH_DIV_STR_FOR_SIZE
+#define SH_DIV_STR_FOR_SIZE "call2"
OSDN Git Service
