Toolchain/binutils-gdb
1
0
Fork 0
forked from Imagelibrary/binutils-gdb
Code Pull Requests Activity

add infcall_mmap and gcc_target_options gdbarch methods

Browse Source 
The compiler needed two new gdbarch methods.

The infcall_mmap method allocates memory in the inferior.
This is used when inserting the object code.

The gcc_target_options method computes some arch-specific gcc options
to pass to the compiler.  This is used to ensure that gcc generates
object code for the correct architecture.

gdb/ChangeLog
2014-12-12  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* arch-utils.c (default_infcall_mmap)
	(default_gcc_target_options): New functions.
	* arch-utils.h (GDB_MMAP_PROT_READ, GDB_MMAP_PROT_WRITE)
	(GDB_MMAP_PROT_EXEC): Define.
	(default_infcall_mmap, default_gcc_target_options): Declare.
	* gdbarch.h: Rebuild.
	* gdbarch.c: Rebuild.
	* gdbarch.sh (infcall_mmap, gcc_target_options): New methods.
This commit is contained in:
Jan Kratochvil
2014-05-14 14:08:57 -06:00
parent 233a8fb382
commit f208eee0f3
6 changed files with 110 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
gdb/gdbarch.c
View File

@@ -321,6 +321,8 @@ struct gdbarch
gdbarch_insn_is_jump_ftype *insn_is_jump;
gdbarch_auxv_parse_ftype *auxv_parse;
gdbarch_vsyscall_range_ftype *vsyscall_range;
gdbarch_infcall_mmap_ftype *infcall_mmap;
gdbarch_gcc_target_options_ftype *gcc_target_options;
};
/* Create a new ``struct gdbarch'' based on information provided by
@@ -417,6 +419,8 @@ gdbarch_alloc (const struct gdbarch_info *info,
gdbarch->insn_is_ret = default_insn_is_ret;
gdbarch->insn_is_jump = default_insn_is_jump;
gdbarch->vsyscall_range = default_vsyscall_range;
gdbarch->infcall_mmap = default_infcall_mmap;
gdbarch->gcc_target_options = default_gcc_target_options;
/* gdbarch_alloc() */
return gdbarch;
@@ -642,6 +646,8 @@ verify_gdbarch (struct gdbarch *gdbarch)
/* Skip verify of insn_is_jump, invalid_p == 0 */
/* Skip verify of auxv_parse, has predicate. */
/* Skip verify of vsyscall_range, invalid_p == 0 */
/* Skip verify of infcall_mmap, invalid_p == 0 */
/* Skip verify of gcc_target_options, invalid_p == 0 */
buf = ui_file_xstrdup (log, &length);
make_cleanup (xfree, buf);
if (length > 0)
@@ -911,6 +917,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
fprintf_unfiltered (file,
"gdbarch_dump: frame_red_zone_size = %s\n",
plongest (gdbarch->frame_red_zone_size));
fprintf_unfiltered (file,
"gdbarch_dump: gcc_target_options = <%s>\n",
host_address_to_string (gdbarch->gcc_target_options));
fprintf_unfiltered (file,
"gdbarch_dump: gdbarch_gcore_bfd_target_p() = %d\n",
gdbarch_gcore_bfd_target_p (gdbarch));
@@ -977,6 +986,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
fprintf_unfiltered (file,
"gdbarch_dump: in_solib_return_trampoline = <%s>\n",
host_address_to_string (gdbarch->in_solib_return_trampoline));
fprintf_unfiltered (file,
"gdbarch_dump: infcall_mmap = <%s>\n",
host_address_to_string (gdbarch->infcall_mmap));
fprintf_unfiltered (file,
"gdbarch_dump: gdbarch_info_proc_p() = %d\n",
gdbarch_info_proc_p (gdbarch));
@@ -4519,6 +4531,40 @@ set_gdbarch_vsyscall_range (struct gdbarch *gdbarch,
gdbarch->vsyscall_range = vsyscall_range;
}
CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot)
{
gdb_assert (gdbarch != NULL);
gdb_assert (gdbarch->infcall_mmap != NULL);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_infcall_mmap called\n");
return gdbarch->infcall_mmap (size, prot);
}
void
set_gdbarch_infcall_mmap (struct gdbarch *gdbarch,
gdbarch_infcall_mmap_ftype infcall_mmap)
{
gdbarch->infcall_mmap = infcall_mmap;
}
char *
gdbarch_gcc_target_options (struct gdbarch *gdbarch)
{
gdb_assert (gdbarch != NULL);
gdb_assert (gdbarch->gcc_target_options != NULL);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_gcc_target_options called\n");
return gdbarch->gcc_target_options (gdbarch);
}
void
set_gdbarch_gcc_target_options (struct gdbarch *gdbarch,
gdbarch_gcc_target_options_ftype gcc_target_options)
{
gdbarch->gcc_target_options = gcc_target_options;
}
/* Keep a registry of per-architecture data-pointers required by GDB
modules. */