* dw2gencfi.c (cfi_pseudo_table): Add cfi_gnu_window_save.
(dot_cfi, output_cfi_insn): Handle DW_CFA_GNU_window_save. (output_cie): Don't use DW_EH_PE_pcrel if neither DIFF_EXPR_OK nor tc_cfi_emit_pcrel_expr are defined. (output_fde): Use tc_cfi_emit_pcrel_expr if available and DIFF_EXPR_OK is not defined. * config/tc-sparc.h (TARGET_USE_CFIPOP): Define. (tc_cfi_frame_initial_instructions, tc_regname_to_dw2regnum, tc_cfi_emit_pcrel_expr): Define. (sparc_cfi_frame_initial_instructions, sparc_regname_to_dw2regnum, sparc_cfi_emit_pcrel_expr): New prototypes. (sparc_cie_data_alignment): New decl. (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT): Define. * config/tc-sparc.c: Include dw2gencfi.h. (sparc_cie_data_alignment): New variable. (md_begin): Initialize it. (sparc_cfi_frame_initial_instructions): New function. (sparc_regname_to_dw2regnum): Likewise. (sparc_cfi_emit_pcrel_expr): Likewise. * doc/as.texinfo: Document .cfi_gnu_window_save. * config/tc-sparc.c (s_common): Cast last argument to long and change format string to shut up warning. testsuite/ * gas/cfi/cfi-sparc-1.s: New test. * gas/cfi/cfi-sparc-1.d: New test. * gas/cfi/cfi-sparc64-1.s: New test. * gas/cfi/cfi-sparc64-1.d: New test. * gas/cfi/cfi.exp: Run them.
This commit is contained in:
Jakub Jelinek
parent
e294916c5a
commit
364b6d8b23
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@ -1,3 +1,29 @@
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2003-08-29 Jakub Jelinek <jakub@redhat.com>
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* dw2gencfi.c (cfi_pseudo_table): Add cfi_gnu_window_save.
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(dot_cfi, output_cfi_insn): Handle DW_CFA_GNU_window_save.
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(output_cie): Don't use DW_EH_PE_pcrel if neither DIFF_EXPR_OK
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nor tc_cfi_emit_pcrel_expr are defined.
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(output_fde): Use tc_cfi_emit_pcrel_expr if available and
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DIFF_EXPR_OK is not defined.
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* config/tc-sparc.h (TARGET_USE_CFIPOP): Define.
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(tc_cfi_frame_initial_instructions, tc_regname_to_dw2regnum,
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tc_cfi_emit_pcrel_expr): Define.
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(sparc_cfi_frame_initial_instructions, sparc_regname_to_dw2regnum,
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sparc_cfi_emit_pcrel_expr): New prototypes.
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(sparc_cie_data_alignment): New decl.
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(DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT): Define.
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* config/tc-sparc.c: Include dw2gencfi.h.
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(sparc_cie_data_alignment): New variable.
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(md_begin): Initialize it.
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(sparc_cfi_frame_initial_instructions): New function.
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(sparc_regname_to_dw2regnum): Likewise.
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(sparc_cfi_emit_pcrel_expr): Likewise.
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* doc/as.texinfo: Document .cfi_gnu_window_save.
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* config/tc-sparc.c (s_common): Cast last argument to long and
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change format string to shut up warning.
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2003-08-25 Jason Eckhardt <jle@rice.edu>
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* doc/c-i860.texi: Update text about relocatable address expansions.
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@ -26,6 +26,7 @@
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#include "subsegs.h"
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#include "opcode/sparc.h"
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#include "dw2gencfi.h"
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#ifdef OBJ_ELF
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#include "elf/sparc.h"
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@ -116,6 +117,9 @@ static int target_little_endian_data;
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/* Symbols for global registers on v9. */
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static symbolS *globals[8];
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/* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
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int sparc_cie_data_alignment;
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/* V9 and 86x have big and little endian data, but instructions are always big
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endian. The sparclet has bi-endian support but both data and insns have
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the same endianness. Global `target_big_endian' is used for data.
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@ -798,6 +802,7 @@ md_begin ()
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if (! default_init_p)
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init_default_arch ();
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sparc_cie_data_alignment = sparc_arch_size == 64 ? -8 : -4;
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op_hash = hash_new ();
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while (i < (unsigned int) sparc_num_opcodes)
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@ -3804,8 +3809,8 @@ s_common (ignore)
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{
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if (S_GET_VALUE (symbolP) != (valueT) size)
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{
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as_warn (_("Length of .comm \"%s\" is already %ld. Not changed to %d."),
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S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size);
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as_warn (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
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S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), (long) size);
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}
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}
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else
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@ -4482,4 +4487,63 @@ cons_fix_new_sparc (frag, where, nbytes, exp)
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}
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fix_new_exp (frag, where, (int) nbytes, exp, 0, r);
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sparc_cons_special_reloc = NULL;
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}
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void
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sparc_cfi_frame_initial_instructions ()
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{
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cfi_add_CFA_def_cfa (14, sparc_arch_size == 64 ? 0x7ff : 0);
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}
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int
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sparc_regname_to_dw2regnum (const char *regname)
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{
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char *p, *q;
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if (!regname[0])
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return -1;
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q = "goli";
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p = strchr (q, regname[0]);
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if (p)
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{
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if (regname[1] < '0' || regname[1] > '8' || regname[2])
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return -1;
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return (p - q) * 8 + regname[1] - '0';
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}
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if (regname[0] == 's' && regname[1] == 'p' && !regname[2])
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return 14;
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if (regname[0] == 'f' && regname[1] == 'p' && !regname[2])
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return 30;
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if (regname[0] == 'f' || regname[0] == 'r')
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{
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unsigned int regnum;
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regnum = strtoul (regname + 1, &q, 10);
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if (p == q || *q)
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return -1;
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if (regnum >= ((regname[0] == 'f'
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&& SPARC_OPCODE_ARCH_V9_P (max_architecture))
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? 64 : 32))
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return -1;
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if (regname[0] == 'f')
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{
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regnum += 32;
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if (regnum >= 64 && (regnum & 1))
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return -1;
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}
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return regnum;
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}
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return -1;
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}
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void
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sparc_cfi_emit_pcrel_expr (expressionS *exp, unsigned int nbytes)
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{
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sparc_cons_special_reloc = "disp";
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sparc_no_align_cons = 1;
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emit_expr (exp, nbytes);
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sparc_no_align_cons = 0;
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sparc_cons_special_reloc = NULL;
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}
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@ -174,6 +174,21 @@ extern void cons_fix_new_sparc
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} \
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while (0)
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#define DWARF2_LINE_MIN_INSN_LENGTH 4
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#define TARGET_USE_CFIPOP 1
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#define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions
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extern void sparc_cfi_frame_initial_instructions PARAMS ((void));
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#define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum
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extern int sparc_regname_to_dw2regnum PARAMS ((const char *regname));
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#define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr
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extern void sparc_cfi_emit_pcrel_expr PARAMS ((expressionS *, unsigned int));
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extern int sparc_cie_data_alignment;
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#define DWARF2_LINE_MIN_INSN_LENGTH 4
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#define DWARF2_DEFAULT_RETURN_COLUMN 15
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#define DWARF2_CIE_DATA_ALIGNMENT sparc_cie_data_alignment
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/* end of tc-sparc.h */
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@ -4050,6 +4050,9 @@ using the known displacement of the CFA register from the CFA.
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This is often easier to use, because the number will match the
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code it's annotating.
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@section @code{.cfi_gnu_window_save}
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SPARC register window has been saved.
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@section @code{.cfi_escape} @var{expression}[, @dots{}]
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Allows the user to add arbitrary bytes to the unwind info. One
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might use this to add OS-specific CFI opcodes, or generic CFI
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@ -374,6 +374,7 @@ const pseudo_typeS cfi_pseudo_table[] =
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{ "cfi_same_value", dot_cfi, DW_CFA_same_value },
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{ "cfi_remember_state", dot_cfi, DW_CFA_remember_state },
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{ "cfi_restore_state", dot_cfi, DW_CFA_restore_state },
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{ "cfi_gnu_window_save", dot_cfi, DW_CFA_GNU_window_save },
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{ "cfi_escape", dot_cfi_escape, 0 },
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{ NULL, NULL, 0 }
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};
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@ -529,6 +530,10 @@ dot_cfi (int arg)
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cfi_add_CFA_restore_state ();
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break;
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case DW_CFA_GNU_window_save:
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cfi_add_CFA_insn (DW_CFA_GNU_window_save);
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break;
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default:
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abort ();
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}
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@ -798,6 +803,10 @@ output_cfi_insn (struct cfi_insn_data *insn)
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out_one (insn->insn);
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break;
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case DW_CFA_GNU_window_save:
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out_one (DW_CFA_GNU_window_save);
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break;
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case CFI_escape:
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{
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struct cfi_escape_data *e;
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@ -838,7 +847,11 @@ output_cie (struct cie_entry *cie)
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out_sleb128 (DWARF2_CIE_DATA_ALIGNMENT); /* Data alignment */
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out_one (cie->return_column); /* Return column */
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out_uleb128 (1); /* Augmentation size */
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#if defined DIFF_EXPR_OK || defined tc_cfi_emit_pcrel_expr
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out_one (DW_EH_PE_pcrel | DW_EH_PE_sdata4);
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#else
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out_one (DW_EH_PE_sdata4);
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#endif
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if (cie->first)
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for (i = cie->first; i != cie->last; i = i->next)
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@ -867,10 +880,22 @@ output_fde (struct fde_entry *fde, struct cie_entry *cie,
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exp.X_add_symbol = after_size_address;
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exp.X_op_symbol = cie->start_address;
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emit_expr (&exp, 4); /* CIE offset */
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#ifdef DIFF_EXPR_OK
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exp.X_add_symbol = fde->start_address;
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exp.X_op_symbol = symbol_temp_new_now ();
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emit_expr (&exp, 4); /* Code offset */
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#else
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exp.X_op = O_symbol;
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exp.X_add_symbol = fde->start_address;
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exp.X_op_symbol = NULL;
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#ifdef tc_cfi_emit_pcrel_expr
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tc_cfi_emit_pcrel_expr (&exp, 4); /* Code offset */
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#else
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emit_expr (&exp, 4); /* Code offset */
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#endif
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exp.X_op = O_subtract;
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#endif
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exp.X_add_symbol = fde->end_address;
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exp.X_op_symbol = fde->start_address; /* Code length */
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@ -1,3 +1,11 @@
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2003-08-29 Jakub Jelinek <jakub@redhat.com>
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* gas/cfi/cfi-sparc-1.s: New test.
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* gas/cfi/cfi-sparc-1.d: New test.
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* gas/cfi/cfi-sparc64-1.s: New test.
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* gas/cfi/cfi-sparc64-1.d: New test.
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* gas/cfi/cfi.exp: Run them.
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2003-08-19 Nick Clifton <nickc@redhat.com>
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* gas/arm/copro.s: Add tests of Addressing Mode 5 (Unindexed).
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@ -0,0 +1,22 @@
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#readelf: -wf
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#name: CFI on SPARC 32-bit
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#as: -32
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The section .eh_frame contains:
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00000000 00000010 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 4
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Data alignment factor: -4
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Return address column: 15
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Augmentation data: 1b
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DW_CFA_def_cfa: r14 ofs 0
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00000014 00000014 00000018 FDE cie=00000000 pc=0000001c..00000040
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DW_CFA_advance_loc: 4 to 00000020
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DW_CFA_def_cfa_reg: r30
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DW_CFA_GNU_window_save
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DW_CFA_register: r15 in r31
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@ -0,0 +1,23 @@
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#; $ as -o test.o -32 gas-cfi-test.s && gcc -m32 -nostdlib -o test test.o
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.file "a.c"
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.text
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.align 4
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.globl foo
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.type foo, @function
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foo:
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.cfi_startproc
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save %sp, -104, %sp
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.cfi_def_cfa_register %fp
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.cfi_gnu_window_save
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.cfi_register %o7, %i7
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add %i0, 1, %o0
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call bar, 0
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add %i0, 2, %i0
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call bar, 0
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mov %i0, %o0
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add %o0, 3, %o0
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ret
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restore %g0, %o0, %o0
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.cfi_endproc
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.size foo, .-foo
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@ -0,0 +1,25 @@
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#readelf: -wf
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#name: CFI on SPARC 64-bit
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#as: -64
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The section .eh_frame contains:
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00000000 00000011 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 4
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Data alignment factor: -8
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Return address column: 15
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Augmentation data: 1b
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DW_CFA_def_cfa: r14 ofs 2047
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00000015 00000017 00000019 FDE cie=00000000 pc=0000001d..0000004d
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DW_CFA_advance_loc: 4 to 00000021
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DW_CFA_def_cfa_reg: r30
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DW_CFA_GNU_window_save
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DW_CFA_register: r15 in r31
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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@ -0,0 +1,26 @@
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#; $ as -o test.o -64 gas-cfi-test.s && gcc -m64 -nostdlib -o test test.o
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.file "a.c"
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.text
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.align 4
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.globl foo
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.type foo, @function
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foo:
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.cfi_startproc
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save %sp, -192, %sp
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.cfi_def_cfa_register %fp
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.cfi_gnu_window_save
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.cfi_register %o7, %i7
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add %i0, 1, %o0
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add %i0, 2, %i0
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call bar, 0
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sra %o0, 0, %o0
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sra %i0, 0, %i0
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call bar, 0
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mov %i0, %o0
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add %o0, 3, %o0
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sra %o0, 0, %o0
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ret
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restore %g0, %o0, %o0
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.cfi_endproc
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.size foo, .-foo
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@ -39,6 +39,16 @@ if [istarget "x86_64-*"] then {
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} elseif { [istarget "m68*-*"] } then {
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run_dump_test "cfi-m68k"
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} elseif { [istarget sparc*-*-*] } then {
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global NM
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global NMFLAGS
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global srcdir
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catch "exec $srcdir/lib/run $NM $NMFLAGS --help" nm_help
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run_dump_test "cfi-sparc-1"
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if { [regexp "elf64\[_-\]sparc" $nm_help] } then {
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run_dump_test "cfi-sparc64-1"
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}
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} else {
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return
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}
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Loading…
Reference in New Issue