diff options
Diffstat (limited to 'gcc/config/rs6000/linux.h')
| -rw-r--r-- | gcc/config/rs6000/linux.h | 94 |
1 files changed, 7 insertions, 87 deletions
diff --git a/gcc/config/rs6000/linux.h b/gcc/config/rs6000/linux.h index 4c808663d81..84cdeeddd8a 100644 --- a/gcc/config/rs6000/linux.h +++ b/gcc/config/rs6000/linux.h @@ -1,6 +1,6 @@ /* Definitions of target machine for GNU compiler, for PowerPC machines running Linux. - Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. Contributed by Michael Meissner (meissner@cygnus.com). @@ -94,96 +94,16 @@ #undef TARGET_64BIT #define TARGET_64BIT 0 -/* We don't need to generate entries in .fixup. */ +/* We don't need to generate entries in .fixup, except when + -mrelocatable or -mrelocatable-lib is given. */ #undef RELOCATABLE_NEEDS_FIXUP +#define RELOCATABLE_NEEDS_FIXUP \ + (target_flags & target_flags_explicit & MASK_RELOCATABLE) #define TARGET_ASM_FILE_END file_end_indicate_exec_stack #define TARGET_HAS_F_SETLKW -/* Do code reading to identify a signal frame, and set the frame - state data appropriately. See unwind-dw2.c for the structs. */ - -#if defined(IN_LIBGCC2) && !defined(inhibit_libc) -#include <signal.h> - -/* During the 2.5 kernel series the kernel ucontext was changed, but - the new layout is compatible with the old one, so we just define - and use the old one here for simplicity and compatibility. */ - -struct kernel_old_ucontext { - unsigned long uc_flags; - struct ucontext *uc_link; - stack_t uc_stack; - struct sigcontext_struct uc_mcontext; - sigset_t uc_sigmask; -}; - -enum { SIGNAL_FRAMESIZE = 64 }; - -#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ - do { \ - unsigned char *pc_ = (CONTEXT)->ra; \ - struct sigcontext *sc_; \ - long new_cfa_; \ - int i_; \ - \ - /* li r0, 0x7777; sc (sigreturn old) */ \ - /* li r0, 0x0077; sc (sigreturn new) */ \ - /* li r0, 0x6666; sc (rt_sigreturn old) */ \ - /* li r0, 0x00AC; sc (rt_sigreturn new) */ \ - if (*(unsigned int *) (pc_+4) != 0x44000002) \ - break; \ - if (*(unsigned int *) (pc_+0) == 0x38007777 \ - || *(unsigned int *) (pc_+0) == 0x38000077) \ - { \ - struct sigframe { \ - char gap[SIGNAL_FRAMESIZE]; \ - struct sigcontext sigctx; \ - } *rt_ = (CONTEXT)->cfa; \ - sc_ = &rt_->sigctx; \ - } \ - else if (*(unsigned int *) (pc_+0) == 0x38006666 \ - || *(unsigned int *) (pc_+0) == 0x380000AC) \ - { \ - struct rt_sigframe { \ - char gap[SIGNAL_FRAMESIZE]; \ - unsigned long _unused[2]; \ - struct siginfo *pinfo; \ - void *puc; \ - struct siginfo info; \ - struct kernel_old_ucontext uc; \ - } *rt_ = (CONTEXT)->cfa; \ - sc_ = &rt_->uc.uc_mcontext; \ - } \ - else \ - break; \ - \ - new_cfa_ = sc_->regs->gpr[STACK_POINTER_REGNUM]; \ - (FS)->cfa_how = CFA_REG_OFFSET; \ - (FS)->cfa_reg = STACK_POINTER_REGNUM; \ - (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \ - \ - for (i_ = 0; i_ < 32; i_++) \ - if (i_ != STACK_POINTER_REGNUM) \ - { \ - (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \ - (FS)->regs.reg[i_].loc.offset \ - = (long)&(sc_->regs->gpr[i_]) - new_cfa_; \ - } \ - \ - (FS)->regs.reg[CR2_REGNO].how = REG_SAVED_OFFSET; \ - (FS)->regs.reg[CR2_REGNO].loc.offset \ - = (long)&(sc_->regs->ccr) - new_cfa_; \ - \ - (FS)->regs.reg[LINK_REGISTER_REGNUM].how = REG_SAVED_OFFSET; \ - (FS)->regs.reg[LINK_REGISTER_REGNUM].loc.offset \ - = (long)&(sc_->regs->link) - new_cfa_; \ - \ - (FS)->regs.reg[CR0_REGNO].how = REG_SAVED_OFFSET; \ - (FS)->regs.reg[CR0_REGNO].loc.offset \ - = (long)&(sc_->regs->nip) - new_cfa_; \ - (FS)->retaddr_column = CR0_REGNO; \ - goto SUCCESS; \ - } while (0) +#ifdef IN_LIBGCC2 +#include "config/rs6000/linux-unwind.h" #endif |