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authorJakub Jelinek <jakub@redhat.com>2003-08-29 20:20:18 +0000
committerJakub Jelinek <jakub@redhat.com>2003-08-29 20:20:18 +0000
commit364b6d8b23fffbc773c2bda23348d73e8de86e84 (patch)
treeffe7b74218f18af4d967a05c8fb7bb373ca2161d /gas/dw2gencfi.c
parente294916c5a6fd7e6f6a13261100cb1d3a2ee5a82 (diff)
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* 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.
Diffstat (limited to 'gas/dw2gencfi.c')
-rw-r--r--gas/dw2gencfi.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/gas/dw2gencfi.c b/gas/dw2gencfi.c
index c7c62a7..c6f1a2e 100644
--- a/gas/dw2gencfi.c
+++ b/gas/dw2gencfi.c
@@ -374,6 +374,7 @@ const pseudo_typeS cfi_pseudo_table[] =
{ "cfi_same_value", dot_cfi, DW_CFA_same_value },
{ "cfi_remember_state", dot_cfi, DW_CFA_remember_state },
{ "cfi_restore_state", dot_cfi, DW_CFA_restore_state },
+ { "cfi_gnu_window_save", dot_cfi, DW_CFA_GNU_window_save },
{ "cfi_escape", dot_cfi_escape, 0 },
{ NULL, NULL, 0 }
};
@@ -529,6 +530,10 @@ dot_cfi (int arg)
cfi_add_CFA_restore_state ();
break;
+ case DW_CFA_GNU_window_save:
+ cfi_add_CFA_insn (DW_CFA_GNU_window_save);
+ break;
+
default:
abort ();
}
@@ -798,6 +803,10 @@ output_cfi_insn (struct cfi_insn_data *insn)
out_one (insn->insn);
break;
+ case DW_CFA_GNU_window_save:
+ out_one (DW_CFA_GNU_window_save);
+ break;
+
case CFI_escape:
{
struct cfi_escape_data *e;
@@ -838,7 +847,11 @@ output_cie (struct cie_entry *cie)
out_sleb128 (DWARF2_CIE_DATA_ALIGNMENT); /* Data alignment */
out_one (cie->return_column); /* Return column */
out_uleb128 (1); /* Augmentation size */
+#if defined DIFF_EXPR_OK || defined tc_cfi_emit_pcrel_expr
out_one (DW_EH_PE_pcrel | DW_EH_PE_sdata4);
+#else
+ out_one (DW_EH_PE_sdata4);
+#endif
if (cie->first)
for (i = cie->first; i != cie->last; i = i->next)
@@ -867,10 +880,22 @@ output_fde (struct fde_entry *fde, struct cie_entry *cie,
exp.X_add_symbol = after_size_address;
exp.X_op_symbol = cie->start_address;
emit_expr (&exp, 4); /* CIE offset */
-
+
+#ifdef DIFF_EXPR_OK
exp.X_add_symbol = fde->start_address;
exp.X_op_symbol = symbol_temp_new_now ();
emit_expr (&exp, 4); /* Code offset */
+#else
+ exp.X_op = O_symbol;
+ exp.X_add_symbol = fde->start_address;
+ exp.X_op_symbol = NULL;
+#ifdef tc_cfi_emit_pcrel_expr
+ tc_cfi_emit_pcrel_expr (&exp, 4); /* Code offset */
+#else
+ emit_expr (&exp, 4); /* Code offset */
+#endif
+ exp.X_op = O_subtract;
+#endif
exp.X_add_symbol = fde->end_address;
exp.X_op_symbol = fde->start_address; /* Code length */