diff options
Diffstat (limited to 'gdb/gdbarch_components.py')
| -rw-r--r-- | gdb/gdbarch_components.py | 99 |
1 files changed, 66 insertions, 33 deletions
diff --git a/gdb/gdbarch_components.py b/gdb/gdbarch_components.py index 91c867e..3820ae3 100644 --- a/gdb/gdbarch_components.py +++ b/gdb/gdbarch_components.py @@ -1395,7 +1395,7 @@ the condition is true, so that we ensure forward progress when stepping past a conditional branch to self. """, type="std::vector<CORE_ADDR>", - name="software_single_step", + name="get_next_pcs", params=[("struct regcache *", "regcache")], predicate=True, ) @@ -1435,7 +1435,7 @@ Function( comment="Return a newly-allocated solib_ops object capable of providing the solibs for this architecture.", type="solib_ops_up", name="make_solib_ops", - params=[], + params=[("program_space *", "pspace")], predefault="make_target_solib_ops", invalid=False, ) @@ -1738,7 +1738,12 @@ failed, otherwise, return the red length of READBUF. """, type="ULONGEST", name="core_xfer_shared_libraries", - params=[("gdb_byte *", "readbuf"), ("ULONGEST", "offset"), ("ULONGEST", "len")], + params=[ + ("struct bfd &", "cbfd"), + ("gdb_byte *", "readbuf"), + ("ULONGEST", "offset"), + ("ULONGEST", "len"), + ], predicate=True, ) @@ -1750,7 +1755,12 @@ Return the number of bytes read (zero indicates failure). """, type="ULONGEST", name="core_xfer_shared_libraries_aix", - params=[("gdb_byte *", "readbuf"), ("ULONGEST", "offset"), ("ULONGEST", "len")], + params=[ + ("struct bfd &", "cbfd"), + ("gdb_byte *", "readbuf"), + ("ULONGEST", "offset"), + ("ULONGEST", "len"), + ], predicate=True, ) @@ -1766,34 +1776,39 @@ How the core target converts a PTID from a core file to a string. Method( comment=""" -How the core target extracts the name of a thread from a core file. +How the core target extracts the name of a thread from core file CBFD. """, type="const char *", name="core_thread_name", - params=[("struct thread_info *", "thr")], + params=[("struct bfd &", "cbfd"), ("struct thread_info *", "thr")], predicate=True, ) Method( comment=""" Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information -from core file into buffer READBUF with length LEN. Return the number +from core file CBFD into buffer READBUF with length LEN. Return the number of bytes read (zero indicates EOF, a negative value indicates failure). """, type="LONGEST", name="core_xfer_siginfo", - params=[("gdb_byte *", "readbuf"), ("ULONGEST", "offset"), ("ULONGEST", "len")], + params=[ + ("struct bfd &", "cbfd"), + ("gdb_byte *", "readbuf"), + ("ULONGEST", "offset"), + ("ULONGEST", "len"), + ], predicate=True, ) Method( comment=""" -Read x86 XSAVE layout information from core file into XSAVE_LAYOUT. +Read x86 XSAVE layout information from core file CBFD into XSAVE_LAYOUT. Returns true if the layout was read successfully. """, type="bool", name="core_read_x86_xsave_layout", - params=[("x86_xsave_layout &", "xsave_layout")], + params=[("struct bfd &", "cbfd"), ("x86_xsave_layout &", "xsave_layout")], predicate=True, ) @@ -1891,7 +1906,7 @@ receive control again (e.g. by placing a software breakpoint instruction into the displaced instruction buffer). The default implementation returns false on all targets that provide a -gdbarch_software_single_step routine, and true otherwise. +gdbarch_get_next_pcs routine, and true otherwise. """, type="bool", name="displaced_step_hw_singlestep", @@ -2554,33 +2569,16 @@ Method( comment=""" Implement the "info proc" command for core files. Note that there are two "info_proc"-like methods on gdbarch -- one for core files, -one for live targets. +one for live targets. CBFD is the core file being read from. """, type="void", name="core_info_proc", - params=[("const char *", "args"), ("enum info_proc_what", "what")], - predicate=True, -) - -Method( - comment=""" -Iterate over all objfiles in the order that makes the most sense -for the architecture to make global symbol searches. - -CB is a callback function passed an objfile to be searched. The iteration stops -if this function returns nonzero. - -If not NULL, CURRENT_OBJFILE corresponds to the objfile being -inspected when the symbol search was requested. -""", - type="void", - name="iterate_over_objfiles_in_search_order", params=[ - ("iterate_over_objfiles_in_search_order_cb_ftype", "cb"), - ("struct objfile *", "current_objfile"), + ("struct bfd *", "cbfd"), + ("const char *", "args"), + ("enum info_proc_what", "what"), ], - predefault="default_iterate_over_objfiles_in_search_order", - invalid=False, + predicate=True, ) Value( @@ -2848,3 +2846,38 @@ which all assume current_inferior() is the one to read from. predefault="default_core_parse_exec_context", invalid=False, ) + +Method( + comment=""" +Some targets support special hardware-assisted control-flow protection +technologies. For example, the Intel Control-Flow Enforcement Technology +(Intel CET) on x86 provides a shadow stack and indirect branch tracking. +To enable shadow stack support for inferior calls the shadow_stack_push +gdbarch hook has to be provided. The get_shadow_stack_pointer gdbarch +hook has to be provided to enable displaced stepping. + +Push NEW_ADDR to the shadow stack and update the shadow stack pointer. +""", + type="void", + name="shadow_stack_push", + params=[("CORE_ADDR", "new_addr"), ("regcache *", "regcache")], + predicate=True, +) + +Method( + comment=""" +If possible, return the shadow stack pointer. If the shadow stack +feature is enabled then set SHADOW_STACK_ENABLED to true, otherwise +set SHADOW_STACK_ENABLED to false. This hook has to be provided to enable +displaced stepping for shadow stack enabled programs. +On some architectures, the shadow stack pointer is available even if the +feature is disabled. So dependent on the target, an implementation of +this function may return a valid shadow stack pointer, but set +SHADOW_STACK_ENABLED to false. +""", + type="std::optional<CORE_ADDR>", + name="get_shadow_stack_pointer", + params=[("regcache *", "regcache"), ("bool &", "shadow_stack_enabled")], + predefault="default_get_shadow_stack_pointer", + invalid=False, +) |