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| author | Mike Stump <mrs@gcc.gnu.org> | 1996-08-16 00:52:06 +0000 |
|---|---|---|
| committer | Mike Stump <mrs@gcc.gnu.org> | 1996-08-16 00:52:06 +0000 |
| commit | 843e83356cffe3b25ef5ba53d9e86a2c130b80f5 (patch) | |
| tree | dfa01fe78a9a498d98e86d5a2245aefbc71811b2 /gcc/except.c | |
| parent | 6a5d752611d3c403b92591f4f2cc83c5ffd9ccd5 (diff) | |
| download | gcc-843e83356cffe3b25ef5ba53d9e86a2c130b80f5.zip gcc-843e83356cffe3b25ef5ba53d9e86a2c130b80f5.tar.gz gcc-843e83356cffe3b25ef5ba53d9e86a2c130b80f5.tar.bz2 | |
libgcc2.c (__throw): New routine.
* libgcc2.c (__throw): New routine.
(__eh_pc): New data object for exception handling.
* except.c (eh_saved_pc): New object so we can call
assemble_external.
(expand_internal_throw_indirect): Call assemble_external for
__eh_pc.
(end_eh_unwinder): Ditto.
(init_eh): Initialize eh_saved_pc.
fixes eh6.C on rs6000 and alpha
From-SVN: r12646
Diffstat (limited to 'gcc/except.c')
| -rw-r--r-- | gcc/except.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gcc/except.c b/gcc/except.c index b7753e7..48b635b 100644 --- a/gcc/except.c +++ b/gcc/except.c @@ -165,9 +165,10 @@ struct label_node *caught_return_label_stack = NULL; struct label_node *false_label_stack = NULL; -/* The rtx for the saved PC value. */ +/* The rtx and the tree for the saved PC value. */ rtx eh_saved_pc_rtx; +tree eh_saved_pc; rtx expand_builtin_return_addr PROTO((enum built_in_function, int, rtx)); @@ -450,6 +451,7 @@ void expand_internal_throw_indirect (context) rtx context; { + assemble_external (eh_saved_pc); emit_move_insn (eh_saved_pc_rtx, context); emit_throw (); } @@ -759,6 +761,8 @@ end_eh_unwinder () return; #endif + assemble_external (eh_saved_pc); + expr = make_node (RTL_EXPR); TREE_TYPE (expr) = void_type_node; RTL_EXPR_RTL (expr) = const0_rtx; @@ -955,8 +959,13 @@ check_exception_handler_labels () void init_eh () { - eh_saved_pc_rtx = gen_rtx (MEM, ptr_mode, - gen_rtx (SYMBOL_REF, Pmode, "__eh_pc")); + tree type = build_pointer_type (make_node (VOID_TYPE)); + + eh_saved_pc = build_decl (VAR_DECL, get_identifier ("__eh_pc"), type); + DECL_EXTERNAL (eh_saved_pc) = 1; + TREE_PUBLIC (eh_saved_pc) = 1; + make_decl_rtl (eh_saved_pc, NULL_PTR, 1); + eh_saved_pc_rtx = DECL_RTL (eh_saved_pc); } /* Initialize various EH things. */ |