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IA-64 unwind info changes, fix errors, add missing pieces, and some cleanup.

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* config/tc-ia64.c (dot_restorereg_p): New function.
	(md_pseudo_table): Add restorereg.p.
	...
This commit is contained in:
Jim Wilson 2000-05-25 02:00:14 +00:00
parent ed952ac512
commit e0c9811a90
3 changed files with 1192 additions and 329 deletions
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98
gas/ChangeLog
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@ -1,3 +1,101 @@
2000-05-24 David Mosberger <davidm@hpl.hp.com>
* config/tc-ia64.c (dot_restorereg_p): New function.
(md_pseudo_table): Add restorereg.p.
(output_X3_format): Fix typo: record type should be UNW_X3, not UNW_X1.
(output_X4_format): Fix typo: record type should be UNW_X4, not UNW_X2.
* config/tc-ia64.h (unw_record_type): Add unwabi.
(unw_r_record): Rename member MASK to GRMASK. Add sub-structure
called MASK with members for imask, and the masks produced by
fr_mem, gr_mem, br_mem, and frgr_mem.
(unw_p_record): Add members ABI and CONTEXT.
(unw_x_record): Add member AB.
* config/tc-ia64.c (enum reg_symbol): Add REG_PSP and REG_PRIUNAT
as pseudo-register for use during unwind info generation.
(AR_PFS, AR_LC): New macros.
(enum pseudo_type): Add PSEUDO_FUNC_REG to permit declaring registers
whose names start with an at sign (as in "@priunat").
(pseudo_func): Add "svr4", "hpux", "nt" constants and "priunat"
register.
(unwind_list, unwind_tail, current_unwind_entry, proc_start,
proc_end, unwind_info, personality_routine): Consolidate into
"unwind" structure to reduce offset-table use. Add member
NEXT_SLOT_NUMBER to track the slot number for the next instruction
to be emitted.
(output_R1_format, output_R3_format, output_P3_format,
output_P6_format): Initialize R with zero to reduce compiler warnings.
(output_P7_format): Ditto. Add `default' branch to switch
statement to reduce compiler warnings.
(output_P8_format, output_B1_format, output_B4_format): Ditto.
(output_P4_format): Rename 2nd & 3rd arg to IMASK and IMASK_SIZE.
(format_ab_reg): Rename from format_a_b_reg. Merge A and B args
into single argument.
(output_X1_format, output_X3_format): Initialize R with zero to reduce
compiler warnings. Merge A and B args into single argument.
(output_X2_format, output_X4_format): Remove unused variable R. Merge
A and B args into single argument.
(free_record): Removed (wasn't used).
(free_list_records): Also free imasks in prologue records.
(output_prologue, output_prologue_gr): Initialize mask bits to zero.
(output_spill_mask): Remove.
(output_unwabi): New function.
(output_epilogue, output_label_state, output_copy_state): Call
alloc_record.
(output_spill_psprel, output_spill_sprel, output_spill_psprel_p,
output_spill_sprel_p, output_spill_reg, output_spill_reg_p): Add AB
argument.
(process_one_record): New locals FR_MASK and GR_MASK. Ignore
gr_mem, fr_mem, br_mem, and frgr_mem records and instead emit them
as part of handling the prologue records. Emit region's imask if
we have one. Handle unwabi, epilogue, label_state, copy_state,
spill_psprel, spill_sprel, spill_reg, spill_psprel_p,
spill_sprel_p, and spill_reg_p records.
(set_imask, count_bits, slot_index): New function.
(fixup_unw_records): Fix region size computation. Handle
epilogue, spill_reg, spill_sprel, spill_psprel, spill_reg_p,
spill_sprel_p, and spill_psprel_p records. Merge mask bits of
frgr_mem, fr_mem, gr_mem, br_mem on a per-region basis and
set_imask accordingly. Update imask for gr_gr, and br_gr records.
(convert_expr_to_ab_reg, convert_expr_to_xy_reg): New function.
(dot_save): Use manifest constants for applicaton registers.
Handle REG_PR and REG_PRIUNAT.
(dot_restore): Don't just ignore it.
(dot_restorereg): New function..
(generate_unwind_image): Ensure unwind info is a multiple of eight
bytes, not just four bytes.
(dot_handlerdata, dot_unwentry): Demand empty rest of line.
(dot_altrp): Don't just ignore it.
(dot_savemem): New function. Replaces dot_savesp() and
dot_savepsp(). Use manifest constants for applicaton registers.
Handle REG_PR and REG_PRIUNAT.
(dot_savef): Simplify.
(dot_saveb): Support generation of br_gr.
(dot_spillreg, dot_spillmem, dot_spillreg_p, dot_spillmem_p,
dot_label_state, dot_copy_state): New function.
(dot_unwabi): Don't just ignore it.
(md_pseudo_table): Add restorereg, spillreg, spillsp, spillpsp,
spillreg.p, spillsp.p, spillpsp, label_state, copy_state,
unwabi, vframesp, and vframepsp. Fix typo alprp->altrp.
(emit_one_bundle): Set slot number for prologue/body records
*before* emitting the first insn.
(emit_one_bundle): Set UNWIND.NEXT_SLOT_NUMBER.
(md_begin): Declare "psp" pseudo-register.
(md_operand): Handle PSEUDO_FUNC_REG. Fix printing of error message
so we don't get segfault.
(output_psp_sprel): Output sp/psp relative offsets as 4-byte word
counts as required per SW Conventions manual
(output_rp_psprel, output_rp_sprel, output_pfs_psprel,output_pfs_sprel,
output_preds_psprel, output_preds_sprel, output_spill_base,
output_unat_psprel, output_unat_sprel, output_lc_psprel,
output_lc_sprel, output_fpsr_psprel, output_fpsr_sprel,
output_priunat_psprel, output_priunat_sprel, output_bsp_psprel,
output_bsp_sprel, output_bspstore_psprel, output_bspstore_sprel,
output_rnat_psprel, output_rnat_sprel, output_spill_psprel,
output_spill_sprel, output_spill_psprel_p, output_spill_sprel_p):Ditto.
(dot_vframe): Implement.
(dot_vframesp, dot_vframepsp): New function.
Tue May 23 00:57:05 2000 Hans-Peter Nilsson <hp@axis.com>
* configure.in (i386-*-freebsd a.out entry): Quote properly.

1402
gas/config/tc-ia64.c
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21
gas/config/tc-ia64.h
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@ -1,5 +1,5 @@
/* tc-ia64.h -- Header file for tc-ia64.c.
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of GAS, the GNU Assembler.
@ -157,7 +157,7 @@ typedef enum
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
spill_reg_p, unwabi
} unw_record_type;
@ -167,8 +167,18 @@ typedef enum
typedef struct unw_r_record
{
unsigned long rlen;
unsigned short mask;
unsigned short grmask;
unsigned short grsave;
/* masks to represent the union of save.g, save.f, save.b, and
save.gf: */
unsigned long imask_size;
struct
{
unsigned char *i;
unsigned long fr_mem;
unsigned char gr_mem;
unsigned char br_mem;
} mask;
} unw_r_record;
typedef struct unw_p_record
@ -184,6 +194,8 @@ typedef struct unw_p_record
unsigned short grmask;
unsigned long frmask;
unsigned short brmask;
unsigned char abi;
unsigned char context;
} unw_p_record;
typedef struct unw_b_record
@ -201,7 +213,8 @@ typedef struct unw_x_record
unsigned short reg;
unsigned short treg;
unsigned short qp;
unsigned short xy; /* Value of the XY field.. */
unsigned short ab; /* Value of the AB field.. */
unsigned short xy; /* Value of the XY field.. */
} unw_x_record;
/* This structure is used to determine the specific record type and