This simulates a CFI flash. Its pretty configurable via the device
tree. For now, only basic read/write/erase operations are supported
for the Intel command set, but it's easy enough to extend support.
It's certainly enough to trick Das U-Boot into using it for probing,
reading, writing, and erasing.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The destination registers must be different with BYTEUNPACK insns,
otherwise the hardware throws up an exception. So reject them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The destination registers must be different with BYTEOP16M insns,
otherwise the hardware throws up an exception. So reject them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The destination registers must be different with BYTEOP16P insns,
otherwise the hardware throws up an exception. So reject them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current implementation attempts to handle the 16bit sign extension
itself. Unfortunately, it gets it right in some cases. So rather than
fix that logic, just drop it in favor of using 16bit signed casts. Now
gcc will take care of getting the logic right.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The 16bit acc add insn cannot assign the two results to the same dreg,
so make sure gas rejects attempts to use this insn variant.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Support resolution of STT_GNU_IFUNC via breakpoints.
* breakpoint.c (print_it_typical): Support bp_gnu_ifunc_resolver and
bp_gnu_ifunc_resolver_return.
(bpstat_what): Rename parameter to bs_head, new variable bs, adjust
the loop. Support bp_gnu_ifunc_resolver and
bp_gnu_ifunc_resolver_return. New comment after the loop. New loop
for bp_gnu_ifunc_resolver and bp_gnu_ifunc_resolver_return
breakpoints.
(bptype_string, print_one_breakpoint_location): Support
bp_gnu_ifunc_resolver and bp_gnu_ifunc_resolver_return.
(user_settable_breakpoint): Return true also for
bp_gnu_ifunc_resolver.
(allocate_bp_location): Support bp_gnu_ifunc_resolver and
bp_gnu_ifunc_resolver_return.
(set_breakpoint_location_function): New parameter explicit_loc,
describe it. Call find_pc_partial_function_gnu_ifunc with new
variable IS_GNU_IFUNC and adjust the address for STT_GNU_IFUNC if
EXPLICIT_LOC is not set.
(set_raw_breakpoint): Set EXPLICIT_LOC for
set_breakpoint_location_function.
(clone_momentary_breakpoint): Use true for EXPLICIT_LOC of
set_breakpoint_location_function.
(mention): Support bp_gnu_ifunc_resolver and
bp_gnu_ifunc_resolver_return.
(add_location_to_breakpoint): Set EXPLICIT_LOC for
set_breakpoint_location_function.
(update_breakpoint_locations): Remove static.
(breakpoint_re_set_one): Support bp_gnu_ifunc_resolver and
bp_gnu_ifunc_resolver_return.
* breakpoint.h (enum bptype): New fields bp_gnu_ifunc_resolver and
bp_gnu_ifunc_resolver_return.
(update_breakpoint_locations): New declaration.
* elfread.c: Include gdbthread.h and regcache.h.
(elf_gnu_ifunc_resolver_stop, elf_gnu_ifunc_resolver_return_stop): New
functions.
(elf_gnu_ifunc_fns): Install them.
* minsyms.c (stub_gnu_ifunc_resolver_stop)
(stub_gnu_ifunc_resolver_return_stop): New functions.
(stub_gnu_ifunc_fns): Install them.
* symtab.h (struct gnu_ifunc_fns): New fields gnu_ifunc_resolver_stop
and gnu_ifunc_resolver_return_stop.
(gnu_ifunc_resolver_stop, gnu_ifunc_resolver_return_stop): New.
Code cleanup for later STT_GNU_IFUNC support.
* infcall.c (find_function_addr): Remove variable code, use explicit
dereferences for it. Move VALUE_TYPE initialization later.
GDB find_pc_partial_function support for STT_GNU_IFUNC.
* blockframe.c (cache_pc_function_is_gnu_ifunc): New variable.
(clear_pc_function_cache): Clear it.
(find_pc_partial_function): Rename to ...
(find_pc_partial_function_gnu_ifunc): ... this function. New
parameter is_gnu_ifunc_p, describe it. Set *IS_GNU_IFUNC_P.
(find_pc_partial_function): New wrapper for this function.
* symtab.h (find_pc_partial_function_gnu_ifunc): New declaration.
GDB internal type support for STT_GNU_IFUNC.
* elfread.c (record_minimal_symbol): Support mst_text_gnu_ifunc.
(elf_symtab_read): Set mst_text_gnu_ifunc for
BSF_GNU_INDIRECT_FUNCTION.
* eval.c (evaluate_subexp_standard): Support TYPE_GNU_IFUNC.
* gdbtypes.c (init_type): Support TYPE_FLAG_GNU_IFUNC,
builtin_func_func, nodebug_text_gnu_ifunc_symbol and
nodebug_got_plt_symbol.
* gdbtypes.h (enum type_flag_value): New entry TYPE_FLAG_GNU_IFUNC.
(TYPE_GNU_IFUNC): New.
(struct main_type): New field flag_gnu_ifunc.
(struct builtin_type): New field builtin_func_func.
(struct objfile_type): New fields nodebug_text_gnu_ifunc_symbol and
nodebug_got_plt_symbol.
* minsyms.c (lookup_minimal_symbol_text): Support mst_text_gnu_ifunc.
(in_gnu_ifunc_stub): New.
(prim_record_minimal_symbol, find_solib_trampoline_target): Support
mst_text_gnu_ifunc.
* parse.c (write_exp_msymbol): New variable ifunc_msym. Detect and
support mst_text_gnu_ifunc. Support mst_slot_got_plt.
* solib-svr4.c (svr4_in_dynsym_resolve_code): Return true also for
in_gnu_ifunc_stub.
* symmisc.c (dump_msymbols): Support mst_text_gnu_ifunc.
* symtab.c (search_symbols): Likewise.
* symtab.h (enum minimal_symbol_type): New fields mst_text_gnu_ifunc
and mst_slot_got_plt.
(in_gnu_ifunc_stub): New declaration.
Support a ring of related breakpoints.
* breakpoint.c (watchpoint_del_at_next_stop): New, move here code from
other functions, add gdb_assert.
(update_watchpoint, watchpoint_check): Add gdb_assert. Use
watchpoint_del_at_next_stop.
(bpstat_check_watchpoint): Use watchpoint_del_at_next_stop.
(bpstat_stop_status): Handle ring in related_breakpoint.
(set_raw_breakpoint_without_location): Initialize ring in
related_breakpoint.
(delete_breakpoint): Handle ring in related_breakpoint, use
watchpoint_del_at_next_stop.
(map_breakpoint_numbers): Handle ring in related_breakpoint.
gdb/testsuite/
Support a ring of related breakpoints.
* gdb.base/watchpoint-delete.c: New file.
* gdb.base/watchpoint-delete.exp: New file.
* gdb.ada/arrayparam.exp (print first after function call): Use
explicit package name. Add a comment
(print lasta after function call): Rename ...
(print last after function call): ... it and use explicit package
name.
(print length after function call): Use explicit package name.
* gdb.ada/str_ref_cmp.exp (operator = works for strings): New test.
* gdb.ada/sym_print_name.exp: Change `i' to `integervar'.
(multiple matches for symbol i): Rename ...
(multiple matches for symbol integervar): ... it.
* gdb.ada/sym_print_name/foo.adb (Foo): Change `I' to `IntegerVar'.
* gdb.ada/sym_print_name/pck.ads (Pck): Likewise.
The current handling of the subtraction insn with the RND12 modifier
works when saturation isn't involved. So add handling for this edge
case to match the hardware.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The 16bit add/sub insns missed setting the VS bit in ASTAT whenever the
V bit was also set.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
