diff options
Diffstat (limited to 'gcc/frame.h')
| -rw-r--r-- | gcc/frame.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/gcc/frame.h b/gcc/frame.h index 330277c03f2..384e5eb66ca 100644 --- a/gcc/frame.h +++ b/gcc/frame.h @@ -50,9 +50,15 @@ typedef struct frame_state keep the copies synchronized! */ struct object { +#ifdef IA64_UNWIND_INFO + void *pc_base; /* This field will be set by find_fde. */ +#endif void *pc_begin; void *pc_end; struct dwarf_fde *fde_begin; +#ifdef IA64_UNWIND_INFO + struct dwarf_fde *fde_end; +#endif struct dwarf_fde **fde_array; size_t count; struct object *next; @@ -87,3 +93,184 @@ extern void *__deregister_frame_info (void *); Returns NULL on failure, otherwise returns STATE_IN. */ extern struct frame_state *__frame_state_for (void *, struct frame_state *); + +#ifdef IA64_UNWIND_INFO + +/* This is the information required for unwind records in an ia64 + object file. This is required by GAS and the compiler runtime. */ + +/* These are the starting point masks for the various types of + unwind records. To create a record of type R3 for instance, one + starts by using the value UNW_R3 and or-ing in any other required values. + These values are also unique (in context), so they can be used to identify + the various record types as well. UNW_Bx and some UNW_Px do have the + same value, but Px can only occur in a prologue context, and Bx in + a body context. */ + +#define UNW_R1 0x00 +#define UNW_R2 0x40 +#define UNW_R3 0x60 +#define UNW_P1 0x80 +#define UNW_P2 0xA0 +#define UNW_P3 0xB0 +#define UNW_P4 0xB8 +#define UNW_P5 0xB9 +#define UNW_P6 0xC0 +#define UNW_P7 0xE0 +#define UNW_P8 0xF0 +#define UNW_P9 0xF1 +#define UNW_P10 0xFF +#define UNW_X1 0xF9 +#define UNW_X2 0xFA +#define UNW_X3 0xFB +#define UNW_X4 0xFC +#define UNW_B1 0x80 +#define UNW_B2 0xC0 +#define UNW_B3 0xE0 +#define UNW_B4 0xF0 + +/* These are all the various types of unwind records. */ + +typedef enum +{ + prologue, prologue_gr, body, mem_stack_f, mem_stack_v, psp_gr, psp_sprel, + rp_when, rp_gr, rp_br, rp_psprel, rp_sprel, pfs_when, pfs_gr, pfs_psprel, + pfs_sprel, preds_when, preds_gr, preds_psprel, preds_sprel, + fr_mem, frgr_mem, gr_gr, gr_mem, br_mem, br_gr, spill_base, spill_mask, + unat_when, unat_gr, unat_psprel, unat_sprel, lc_when, lc_gr, lc_psprel, + lc_sprel, fpsr_when, fpsr_gr, fpsr_psprel, fpsr_sprel, + priunat_when_gr, priunat_when_mem, priunat_gr, priunat_psprel, + priunat_sprel, bsp_when, bsp_gr, bsp_psprel, bsp_sprel, bspstore_when, + bspstore_gr, bspstore_psprel, bspstore_sprel, rnat_when, rnat_gr, + rnat_psprel, rnat_sprel, epilogue, label_state, copy_state, + spill_psprel, spill_sprel, spill_reg, spill_psprel_p, spill_sprel_p, + spill_reg_p +} unw_record_type; + + +/* These structures declare the fields that can be used in each of the + 4 record formats, R, P, B and X. */ + +typedef struct unw_r_record +{ + unsigned long rlen; + unsigned short mask; + unsigned short grsave; +} unw_r_record; + +typedef struct unw_p_record +{ + void *imask; + unsigned long t; + unsigned long size; + unsigned long spoff; + unsigned long br; + unsigned long pspoff; + unsigned short gr; + unsigned short rmask; + unsigned short grmask; + unsigned long frmask; + unsigned short brmask; +} unw_p_record; + +typedef struct unw_b_record +{ + unsigned long t; + unsigned long label; + unsigned short ecount; +} unw_b_record; + +typedef struct unw_x_record +{ + unsigned long t; + unsigned long spoff; + unsigned long pspoff; + unsigned short reg; + unsigned short treg; + unsigned short qp; + unsigned short xy; /* Value of the XY field.. */ +} unw_x_record; + +/* This structure is used to determine the specific record type and + its fields. */ +typedef struct unwind_record +{ + unw_record_type type; + union { + unw_r_record r; + unw_p_record p; + unw_b_record b; + unw_x_record x; + } record; +} unwind_record; + +#define IA64_UNW_LOC_TYPE_NONE 0 +#define IA64_UNW_LOC_TYPE_MEM 1 +#define IA64_UNW_LOC_TYPE_GR 2 +#define IA64_UNW_LOC_TYPE_FR 3 +#define IA64_UNW_LOC_TYPE_BR 4 +#define IA64_UNW_LOC_TYPE_SPOFF 5 +#define IA64_UNW_LOC_TYPE_PSPOFF 6 +#define IA64_UNW_LOC_TYPE_OFFSET 7 +#define IA64_UNW_LOC_TYPE_SPILLBASE 8 + +typedef struct ia64_reg_loc +{ + long when; /* PC relative offset from start of function. */ + union { /* In memory or another register? */ + void *mem; + int regno; + int offset; + } l; + short loc_type; /* Where to find value. */ + short reg_size; +} ia64_reg_loc; + +/* Frame information record. */ + +typedef struct ia64_frame_state +{ + ia64_reg_loc gr[4]; /* gr4 to gr7. */ + ia64_reg_loc fr[20]; /* fr2 to fr5, fr16 to fr31. */ + ia64_reg_loc br[5]; /* br1 to br5. */ + ia64_reg_loc rp; + ia64_reg_loc fpsr; + ia64_reg_loc bsp; + ia64_reg_loc bspstore; + ia64_reg_loc rnat; + ia64_reg_loc pfs; + ia64_reg_loc unat; + ia64_reg_loc lc; + ia64_reg_loc pr; + ia64_reg_loc priunat; + ia64_reg_loc sp; + ia64_reg_loc psp; + ia64_reg_loc spill_base; + void *my_sp; + void *my_bsp; +} ia64_frame_state; + +/* This structure represents the start of an unwind information pointer. + 'unwind_descriptors' is the beginninng of the unwind descriptors, which + use up 'length' bytes of storage. */ + +typedef struct unwind_info_ptr +{ + unsigned short version; + unsigned short flags; + unsigned int length; + unsigned char unwind_descriptors[1]; +} unwind_info_ptr; + + +extern unwind_info_ptr *__build_ia64_frame_state (unsigned char *, + ia64_frame_state *, void *, + void **); +extern void *__get_real_reg_value (ia64_reg_loc *); +extern void *__get_personality (unwind_info_ptr *); +extern void *__get_except_table (unwind_info_ptr *); +extern void __set_real_reg_value (ia64_reg_loc *, void *); +void *__calc_caller_bsp (long, unsigned char *); +void __copy_saved_reg_state (ia64_frame_state *, ia64_frame_state *); +#endif /* IA64_UNWIND_INFO */ + |
