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/* Definitions for AMD x86-64 running Linux-based GNU systems with ELF format.
Copyright (C) 2001, 2002 Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>, based on linux.h.
This file is part of GNU CC.
GNU CC 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,
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.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define LINUX_DEFAULT_ELF
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (x86-64 Linux/ELF)");
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__gnu_linux__ -Dlinux -Asystem(posix)"
#undef CPP_SPEC
#define CPP_SPEC "%(cpp_cpu) %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT} %{!m32:-D__LONG_MAX__=9223372036854775807L}"
/* Provide a LINK_SPEC. Here we provide support for the special GCC
options -static and -shared, which allow us to link things in one
of these three modes by applying the appropriate combinations of
options at link-time.
When the -shared link option is used a final link is not being
done. */
#undef LINK_SPEC
#define LINK_SPEC "%{!m32:-m elf_x86_64 -Y P,/usr/lib64} %{m32:-m elf_i386} \
%{shared:-shared} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
%{m32:%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
%{!m32:%{!dynamic-linker:-dynamic-linker /lib64/ld-linux-x86-64.so.2}}} \
%{static:-static}}"
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{m32:%{!shared: \
%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
%{!p:%{profile:gcrt1.o%s} %{!profile:crt1.o%s}}}} \
crti.o%s %{static:crtbeginT.o%s}\
%{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}} \
%{!m32:%{!shared: \
%{pg:/usr/lib64/gcrt1.o%s} %{!pg:%{p:/usr/lib64/gcrt1.o%s} \
%{!p:%{profile:/usr/lib64/gcrt1.o%s} %{!profile:/usr/lib64/crt1.o%s}}}}\
/usr/lib64/crti.o%s %{static:crtbeginT.o%s} \
%{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC "\
%{m32:%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s} \
%{!m32:%{!shared:crtend.o%s} %{shared:crtendS.o%s} /usr/lib64/crtn.o%s}"
#define MULTILIB_DEFAULTS { "m64" }
/* 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>
#endif
#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
do { \
unsigned char *pc_ = (CONTEXT)->ra; \
struct sigcontext *sc_; \
long new_cfa_; \
\
/* movq __NR_rt_sigreturn, %rax ; syscall */ \
if (*(unsigned char *)(pc_+0) == 0x48 \
&& *(unsigned long *)(pc_+1) == 0x050f0000000fc0c7) \
{ \
struct ucontext *uc_ = (CONTEXT)->cfa; \
sc_ = (struct sigcontext *) &uc_->uc_mcontext; \
} \
else \
break; \
\
new_cfa_ = sc_->rsp; \
(FS)->cfa_how = CFA_REG_OFFSET; \
/* Register 7 is rsp */ \
(FS)->cfa_reg = 7; \
(FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
\
/* The SVR4 register numbering macros aren't usable in libgcc. */ \
(FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[0].loc.offset = (long)&sc_->rax - new_cfa_; \
(FS)->regs.reg[1].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[1].loc.offset = (long)&sc_->rbx - new_cfa_; \
(FS)->regs.reg[2].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[2].loc.offset = (long)&sc_->rcx - new_cfa_; \
(FS)->regs.reg[3].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[3].loc.offset = (long)&sc_->rdx - new_cfa_; \
(FS)->regs.reg[4].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[4].loc.offset = (long)&sc_->rbp - new_cfa_; \
(FS)->regs.reg[5].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[5].loc.offset = (long)&sc_->rsi - new_cfa_; \
(FS)->regs.reg[6].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[6].loc.offset = (long)&sc_->rdi - new_cfa_; \
(FS)->regs.reg[8].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[8].loc.offset = (long)&sc_->r8 - new_cfa_; \
(FS)->regs.reg[9].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[9].loc.offset = (long)&sc_->r9 - new_cfa_; \
(FS)->regs.reg[10].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[10].loc.offset = (long)&sc_->r10 - new_cfa_; \
(FS)->regs.reg[11].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[11].loc.offset = (long)&sc_->r11 - new_cfa_; \
(FS)->regs.reg[12].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[12].loc.offset = (long)&sc_->r12 - new_cfa_; \
(FS)->regs.reg[13].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[13].loc.offset = (long)&sc_->r13 - new_cfa_; \
(FS)->regs.reg[14].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[14].loc.offset = (long)&sc_->r14 - new_cfa_; \
(FS)->regs.reg[15].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[15].loc.offset = (long)&sc_->r15 - new_cfa_; \
(FS)->retaddr_column = 16; \
goto SUCCESS; \
} while (0)
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