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Fix PR 10640.
	* dwarf2-frame.c (no_dwarf_call): New function.
	(execute_stack_op): Set CTX->DWARF_CALL.
	* dwarf2expr.c (execute_stack_op) <DW_OP_call2, DW_OP_call4>: New.
	* dwarf2expr.h (struct dwarf_expr_context) <dwarf_call>: New.
	(struct dwarf_expr_context) <get_subr>: Remove the #if0-ed field.
	* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call): New functions.
	(dwarf2_evaluate_loc_desc): Initialize CTX->DWARF_CALL.
	(needs_frame_dwarf_call): New function.
	(dwarf2_loc_desc_needs_frame): Initialize CTX->DWARF_CALL.
	* dwarf2read.c (follow_die_offset): Based on former follow_die_ref.
	Update the comment.  Move variables die, offset and error call to ...
	(follow_die_ref): ... a new function.
	(dwarf2_fetch_die_location_block): New function.
	* dwarf2loc.h (dwarf2_fetch_die_location_block): New prototype.

gdb/testsuite/
	Test PR 10640.
	* gdb.dwarf2/dw2-op-call.exp, gdb.dwarf2/dw2-op-call.S: New.
This commit is contained in:
Jan Kratochvil
2010-06-07 19:55:33 +00:00
parent 17ea53c331
commit 5c631832c1
10 changed files with 315 additions and 22 deletions
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10
gdb/dwarf2-frame.c
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@ -328,6 +328,15 @@ no_get_tls_address (void *baton, CORE_ADDR offset)
_("Support for DW_OP_GNU_push_tls_address is unimplemented"));
}
/* Helper function for execute_stack_op. */
static void
no_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset)
{
internal_error (__FILE__, __LINE__,
_("Support for DW_OP_call* is invalid in CFI"));
}
/* Execute the required actions for both the DW_CFA_restore and
DW_CFA_restore_extended instructions. */
static void
@ -378,6 +387,7 @@ execute_stack_op (const gdb_byte *exp, ULONGEST len, int addr_size,
ctx->get_frame_base = no_get_frame_base;
ctx->get_frame_cfa = no_get_frame_cfa;
ctx->get_tls_address = no_get_tls_address;
ctx->dwarf_call = no_dwarf_call;
dwarf_expr_push (ctx, initial, initial_in_stack_memory);
dwarf_expr_eval (ctx, exp, len);