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gdb/jit: return bool in jit_breakpoint_re_set_internal and jit_read_descriptor 

This is a minor refactoring that converts the return type of
jit_read_descriptor and jit_breakpoint_re_set_internal functions
from 'int' to 'bool'.

The return value logic of jit_breakpoint_re_set_internal has been
reversed.  With this patch it now returns true if the jit breakpoint
has been successfully initialized.

gdb/ChangeLog:
2020-06-22  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	* jit.c (jit_read_descriptor): Use bool as the return type.
	(jit_breakpoint_re_set_internal): Use bool as the return type.
	Invert the return value logic; return true if the jit breakpoint
	has been successfully initialized.
	(jit_inferior_init): Update the call to
	jit_breakpoint_re_set_internal.
This commit is contained in:
Tankut Baris Aktemur 2020-06-22 14:03:33 +02:00
parent f809832224
commit bd920864f3
2 changed files with 22 additions and 13 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2020-06-22 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* jit.c (jit_read_descriptor): Use bool as the return type.
(jit_breakpoint_re_set_internal): Use bool as the return type.
Invert the return value logic; return true if the jit breakpoint
has been successfully initialized.
(jit_inferior_init): Update the call to
jit_breakpoint_re_set_internal.
2020-06-22 Pedro Alves <palves@redhat.com>
PR gdb/25939

26
gdb/jit.c
View File

@ -329,9 +329,9 @@ get_jit_program_space_data ()
}
/* Helper function for reading the global JIT descriptor from remote
memory. Returns 1 if all went well, 0 otherwise. */
memory. Returns true if all went well, false otherwise. */
static int
static bool
jit_read_descriptor (struct gdbarch *gdbarch,
struct jit_descriptor *descriptor,
struct jit_program_space_data *ps_data)
@ -345,10 +345,10 @@ jit_read_descriptor (struct gdbarch *gdbarch,
struct jit_objfile_data *objf_data;
if (ps_data->objfile == NULL)
return 0;
return false;
objf_data = get_jit_objfile_data (ps_data->objfile);
if (objf_data->descriptor == NULL)
return 0;
return false;
if (jit_debug)
fprintf_unfiltered (gdb_stdlog,
@ -370,7 +370,7 @@ jit_read_descriptor (struct gdbarch *gdbarch,
{
printf_unfiltered (_("Unable to read JIT descriptor from "
"remote memory\n"));
return 0;
return false;
}
/* Fix the endianness to match the host. */
@ -381,7 +381,7 @@ jit_read_descriptor (struct gdbarch *gdbarch,
descriptor->first_entry =
extract_typed_address (&desc_buf[8 + ptr_size], ptr_type);
return 1;
return true;
}
/* Helper function for reading a JITed code entry from remote memory. */
@ -950,9 +950,9 @@ jit_breakpoint_deleted (struct breakpoint *b)
}
/* (Re-)Initialize the jit breakpoint if necessary.
Return 0 if the jit breakpoint has been successfully initialized. */
Return true if the jit breakpoint has been successfully initialized. */
static int
static bool
jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
struct jit_program_space_data *ps_data)
{
@ -968,13 +968,13 @@ jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
reg_symbol = lookup_bound_minimal_symbol (jit_break_name);
if (reg_symbol.minsym == NULL
|| BMSYMBOL_VALUE_ADDRESS (reg_symbol) == 0)
return 1;
return false;
desc_symbol = lookup_minimal_symbol (jit_descriptor_name, NULL,
reg_symbol.objfile);
if (desc_symbol.minsym == NULL
|| BMSYMBOL_VALUE_ADDRESS (desc_symbol) == 0)
return 1;
return false;
objf_data = get_jit_objfile_data (reg_symbol.objfile);
objf_data->register_code = reg_symbol.minsym;
@ -994,7 +994,7 @@ jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
paddress (gdbarch, addr));
if (ps_data->cached_code_address == addr)
return 0;
return true;
/* Delete the old breakpoint. */
if (ps_data->jit_breakpoint != NULL)
@ -1004,7 +1004,7 @@ jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
ps_data->cached_code_address = addr;
ps_data->jit_breakpoint = create_jit_event_breakpoint (gdbarch, addr);
return 0;
return true;
}
/* The private data passed around in the frame unwind callback
@ -1252,7 +1252,7 @@ jit_inferior_init (struct gdbarch *gdbarch)
jit_prepend_unwinder (gdbarch);
ps_data = get_jit_program_space_data ();
if (jit_breakpoint_re_set_internal (gdbarch, ps_data) != 0)
if (!jit_breakpoint_re_set_internal (gdbarch, ps_data))
return;
/* Read the descriptor so we can check the version number and load