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Diffstat (limited to 'gcc/config/rs6000/linux64.h')
-rw-r--r--gcc/config/rs6000/linux64.h192
1 files changed, 11 insertions, 181 deletions
diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
index fd0eea58de8..3c920bb8cd5 100644
--- a/gcc/config/rs6000/linux64.h
+++ b/gcc/config/rs6000/linux64.h
@@ -1,6 +1,6 @@
/* Definitions of target machine for GNU compiler,
for 64 bit PowerPC linux.
- Copyright (C) 2000, 2001, 2002, 2003, 2004
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GCC.
@@ -53,8 +53,11 @@
#undef PROCESSOR_DEFAULT64
#define PROCESSOR_DEFAULT64 PROCESSOR_PPC630
-#undef TARGET_RELOCATABLE
-#define TARGET_RELOCATABLE (!TARGET_64BIT && (target_flags & MASK_RELOCATABLE))
+/* 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)
#undef RS6000_ABI_NAME
#define RS6000_ABI_NAME (TARGET_64BIT ? "aixdesc" : "sysv")
@@ -188,6 +191,8 @@
#define TARGET_EABI 0
#undef TARGET_PROTOTYPE
#define TARGET_PROTOTYPE 0
+#undef RELOCATABLE_NEEDS_FIXUP
+#define RELOCATABLE_NEEDS_FIXUP 0
#endif
@@ -212,9 +217,6 @@
#define PROFILE_HOOK(LABEL) \
do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
-/* We don't need to generate entries in .fixup. */
-#undef RELOCATABLE_NEEDS_FIXUP
-
/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
#undef ADJUST_FIELD_ALIGN
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
@@ -549,187 +551,15 @@ while (0)
#undef DRAFT_V4_STRUCT_RET
#define DRAFT_V4_STRUCT_RET (!TARGET_64BIT)
-#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+#define TARGET_ASM_FILE_END rs6000_elf_end_indicate_exec_stack
#define TARGET_HAS_F_SETLKW
#define LINK_GCC_C_SEQUENCE_SPEC \
"%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
-/* 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>
-#ifdef __powerpc64__
-#include <sys/ucontext.h>
-
-enum { SIGNAL_FRAMESIZE = 128 };
-
-#else
-
-/* 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 };
-#endif
-
-#ifdef __powerpc64__
-
-/* If the current unwind info (FS) does not contain explicit info
- saving R2, then we have to do a minor amount of code reading to
- figure out if it was saved. The big problem here is that the
- code that does the save/restore is generated by the linker, so
- we have no good way to determine at compile time what to do. */
-
-#define MD_FROB_UPDATE_CONTEXT(CTX, FS) \
- do { \
- if ((FS)->regs.reg[2].how == REG_UNSAVED) \
- { \
- unsigned int *insn \
- = (unsigned int *) \
- _Unwind_GetGR ((CTX), LINK_REGISTER_REGNUM); \
- if (*insn == 0xE8410028) \
- _Unwind_SetGRPtr ((CTX), 2, (CTX)->cfa + 40); \
- } \
- } while (0)
-
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- unsigned char *pc_ = (CONTEXT)->ra; \
- struct sigcontext *sc_; \
- long new_cfa_; \
- int i_; \
- \
- /* addi r1, r1, 128; li r0, 0x0077; sc (sigreturn) */ \
- /* addi r1, r1, 128; li r0, 0x00AC; sc (rt_sigreturn) */ \
- if (*(unsigned int *) (pc_+0) != 0x38210000 + SIGNAL_FRAMESIZE \
- || *(unsigned int *) (pc_+8) != 0x44000002) \
- break; \
- if (*(unsigned int *) (pc_+4) == 0x38000077) \
- { \
- struct sigframe { \
- char gap[SIGNAL_FRAMESIZE]; \
- struct sigcontext sigctx; \
- } *rt_ = (CONTEXT)->cfa; \
- sc_ = &rt_->sigctx; \
- } \
- else if (*(unsigned int *) (pc_+4) == 0x380000AC) \
- { \
- struct rt_sigframe { \
- int tramp[6]; \
- struct siginfo *pinfo; \
- struct ucontext *puc; \
- } *rt_ = (struct rt_sigframe *) pc_; \
- sc_ = &rt_->puc->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[ARG_POINTER_REGNUM].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[ARG_POINTER_REGNUM].loc.offset \
- = (long)&(sc_->regs->nip) - new_cfa_; \
- (FS)->retaddr_column = ARG_POINTER_REGNUM; \
- goto SUCCESS; \
- } while (0)
-
-#else
-
-#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
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 10:12:50 +0000