* python/py-value.c (value_to_value_object): Remove fetching of
the value if it was lazy.
(valpy_get_is_lazy): New function.
(valpy_fetch_lazy): New function.
Our testsuite noticed a crash when trying to call a function which
requires GDB to allocate memory in the inferior. Typically, this
happens when one of the parameters is a string. For instance, our
testcase tries:
(gdb) call debug.trace (me, "You")
[1] 32737 segmentation fault /path/to/gdb
What happens is that GDB sees the string, and thus tries to allocate
memory for it in the inferior:
> /* Allocate NBYTES of space in the inferior using the inferior's
> malloc and return a value that is a pointer to the allocated
> space. */
>
> struct value *
> value_allocate_space_in_inferior (int len)
> {
> struct objfile *objf;
> struct value *val = find_function_in_inferior ("malloc", &objf);
And find_function_in_inferior first searches the symtab in case
we have debug info. But, in our case (bareboard powerpc), we don't,
so it gets "malloc"'s address from the minimal symbols, and builds
a value whose type is a TYPE_CODE_PTR, not a TYPE_CODE_FUNC.
As a result, when we later try to make the call to malloc, we end up
inside the powerpc tdep code that has:
> do_ppc_sysv_return_value (struct gdbarch *gdbarch, struct type *func_type,
[...]
> if (func_type
> && TYPE_CALLING_CONVENTION (func_type) == DW_CC_GDB_IBM_OpenCL)
The problem is that func_type is not a TYPE_CODE_FUNC, and thus
the type-specific kind is not TYPE_SPECIFIC_FUNC, and so we do
TYPE_CALLING_CONVENTION is an invalid access.
Interestingly, the other call to TYPE_CALLING_CONVENTION is correctly
preceded by a check of the type's TYPE_CODE (making sure that it is
TYPE_CODE_FUNC).
gdb/ChangeLog:
* ppc-sysv-tdep.c (do_ppc_sysv_return_value): Do not check
FUNC_TYPE's calling convention if FUNC_TYPE is not a function.
gdb/
* linux-nat.c (linux_handle_extended_wait): When handling a clone
event, in non-stop, if not stopping, make sure the new lwp has
last_resume_kind set to resume_continue. Assert that when we're
resuming the new lwp, its last_resume_kind is resume_continue.
When using the new -ada-task-info command with an argument,
the output would say that there are N entries in the returned
table, (where N is the total number of tasks present in the inferior).
But, in fact, the table would only contain at most 1 entry.
This patch fixes this by properly computing the number of
tasks being displayed before giving it to the uiout.
gdb/ChangeLog:
* ada-tasks.c (print_ada_task_info): Fix computation of
number of tasks displayed in command output.
gdb/testsuite/ChangeLog:
* gdb.ada/mi_task_info/task_switch.adb: New file.
* gdb.ada/mi_task_info.exp: New file.
* dwarf2-frame-tailcall.c: Include dwarf2-frame.h.
(dwarf2_tailcall_prev_register_first): Use dwarf2_frame_cfa.
(dwarf2_tailcall_sniffer_first): Remove variable pc_regnum. Replace
gdbarch_pc_regnum and frame_unwind_register_unsigned by
gdbarch_unwind_pc.
arguments by adding OBJFILE. Instead of getting objfile from
symbol's symtab, use new argument OBJFILE.
* cp-support.h (cp_scan_for_anonymous_namespaces): Changed function
arguments by adding OBJFILE.
* gdb/dwarf2read.c (new_symbol_full): Change call to
cp_scan_for_anonymous_namespaces to match new signature.
* gdb/stabsread.c (define_symbol): Change call to
cp_scan_for_anonymous_namespaces to match new signature.
initialize them from target PT_PHDR p_vaddr, relocate sect_addr by
pt_phdr if PT_PHDR was found.
* gdb.base/attach-pie-noexec.c: New files.
* gdb.base/attach-pie-noexec.exp: New files.
* gdbtypes.h: Added TYPE_SAFE_NAME macro to get the name of a
type or "<unnamed type"> when there is no name assigned.
* gnu-v3-abi.c (gnuv3_rtti_type): Use TYPE_SAFE_NAME macro to
avoid a sigint when no name is assigned.
Revert:
2011-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2expr.c (ctx_no_read_reg): New function.
* dwarf2expr.h (ctx_no_read_reg): New declaration.
* dwarf2read.c (read_2_signed_bytes, read_4_signed_bytes): Remove.
(decode_locdesc_read_mem, decode_locdesc_ctx_funcs): New.
(decode_locdesc): Replace by a caller of dwarf_expr_eval.
gdb/testsuite/
* gdb.dwarf2/dw2-simple-locdesc.exp (p &s.shl): KFAIL it.
Revert the part of:
2011-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.dwarf2/dw2-stack-boundary.exp (check partial symtab errors):
Change the expected string.
Fix results with system glibc debug info installed.
* gdb.base/disp-step-syscall.exp (continue to $syscall (1st time))
(continue to $syscall (2nd time), continue to $syscall (3rd time)):
Accept also __libc_ symbol prefix and no prefix.
* gdb.cp/converts.cc (foo3_1): New function.
(foo3_2): New functions.
* gdb.cp/converts.exp: Add tests for int to pointer conversion
and null pointer conversions of integer constant zero.
Add test to check if all arguments are checked for incompatible
conversion BADNESS.
* eval.c (evaluate_subexp_standard): Do not construct
an array of types; pass the value array directly to
find_overload_match.
* gdbtypes.h (NULL_POINTER_CONVERSION_BADNESS): Declare.
(rank_function): Take an array of values instead of types.
(rank_one_type): Add struct value * parameter.
* gdbtypes.c (NULL_POINTER_CONVERSION_BADNESS): Define.
(rank_function): For each argument, pass the argument's
value to rank_one_type.
(rank_one_type): Add VALUE parameter.
If the parameter type is a pointer and the argument type
is an integer, return NULL_POINTER_CONVERSION_BADNESS if
VALUE is zero.
Update all calls to rank_one_type, passing NULL for new
VALUE parameter.
* valarith.c (value_user_defined_cpp_op): Do not construct
an array of types; pass the value array directly to
find_overload_match.
* valops.c (find_overload_method_list): Take an array of
values instead of types.
Save the type of OBJP for later use.
Update calls to find_oload_champ, and find_oload_champ_namespace.
(find_oload_champ_namespace): Take an array of values instead
of types.
(find_oload_champ_namespace_loop): Likewise.
(find_oload_champ): Likewise.
(classify_oload_match): Inspect all arguments
until INCOMPATIBLE is found. Return the worst badness found
otherwise.
(compare_parameters): Update call to rank_one_type.
* value.h (find_overload_match): Take an array of values instead
of types.
Drop lazy lm_info reading.
* solib-svr4.c (struct lm_info): Remove field lm. New fields l_addr_p,
l_addr_inferior, l_ld, l_next, l_prev and l_name.
(lm_info_read): New function.
(lm_addr_from_link_map, lm_dynamic_from_link_map): Remove.
(lm_addr_check): Use l_addr_p. No longer use lm_addr_from_link_map and
lm_dynamic_from_link_map.
(lm_next, lm_prev, lm_name): Remove.
(svr4_keep_data_in_core): Use lm_info_read, drop the lm_info entries
initialization incl. read_memory. No longer use lm_name.
(svr4_free_so): Drop lm_info->lm freeing.
(svr4_default_sos): Initialize lminfo with zeroes. Use l_addr_p. Drop
explicit lm_addr and lm initialization.
(svr4_read_so_list): Use lm_info_read, drop the initailization of
fields by hand, incl. read_memory. No longer use lm_next, lm_prev and
lm_name.
* defs.h (struct so_list): New forward declaration.
(make_cleanup_free_so): New declaration.
* solib-svr4.c (ignore_first_link_map_entry): Remove.
(svr4_free_so): Move the function here from downwards. Handle NULL
so->lm_info.
(svr4_free_library_list): New.
(svr4_read_so_list): New, moved here code from svr4_current_sos.
Use more cleanups. Use new parameter ignore_first instead of
ignore_first_link_map_entry.
(svr4_current_sos): New variable ignore_first, initialize it. New
variable back_to, use it for svr4_free_library_list protection.
(svr4_free_so): Remove - move upwards.
* utils.c: Include solist.h.
(do_free_so, make_cleanup_free_so): New functions.
