public inbox for gdb-cvs@sourceware.org
help / color / mirror / Atom feed
* [binutils-gdb] gdb: add supports_arch_info callback to gdbarch_register
@ 2023-02-02 15:08 Simon Marchi
0 siblings, 0 replies; only message in thread
From: Simon Marchi @ 2023-02-02 15:08 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=1a8505cb53faa1c191d09ba221f9b0ec383ccfde
commit 1a8505cb53faa1c191d09ba221f9b0ec383ccfde
Author: Lancelot SIX <lancelot.six@amd.com>
Date: Fri Sep 2 15:09:35 2022 -0400
gdb: add supports_arch_info callback to gdbarch_register
In the ROCm GDB port, there are some amdgcn architectures known by BFD
that we don't actually support in GDB. We don't want
gdbarch_printable_names to return these architectures.
gdbarch_printable_names is used for a few things:
- completion of the "set architecture" command
- the gdb.architecture_names function in Python
- foreach-arch selftests
Add an optional callback to gdbarch_register that is a predicate
indicating whether the gdbarch supports the given bfd_arch_info. by
default, it is nullptr, meaning that the gdbarch accepts all "mach"s for
that architecture known by BFD.
Change-Id: I712f94351b0b34ed1f42e5cf7fc7ba051315d860
Co-Authored-By: Simon Marchi <simon.marchi@efficios.com>
Approved-By: Andrew Burgess <aburgess@redhat.com>
Diff:
---
gdb/arch-utils.c | 9 +++++++--
gdb/gdbarch.h | 4 +++-
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/gdb/arch-utils.c b/gdb/arch-utils.c
index 67968126488..617768225d3 100644
--- a/gdb/arch-utils.c
+++ b/gdb/arch-utils.c
@@ -1237,6 +1237,7 @@ struct gdbarch_registration
enum bfd_architecture bfd_architecture;
gdbarch_init_ftype *init;
gdbarch_dump_tdep_ftype *dump_tdep;
+ gdbarch_supports_arch_info_ftype *supports_arch_info;
struct gdbarch_list *arches;
struct gdbarch_registration *next;
};
@@ -1260,7 +1261,9 @@ gdbarch_printable_names ()
internal_error (_("gdbarch_architecture_names: multi-arch unknown"));
do
{
- arches.push_back (ap->printable_name);
+ if (rego->supports_arch_info == nullptr
+ || rego->supports_arch_info (ap))
+ arches.push_back (ap->printable_name);
ap = ap->next;
}
while (ap != NULL);
@@ -1273,7 +1276,8 @@ gdbarch_printable_names ()
void
gdbarch_register (enum bfd_architecture bfd_architecture,
gdbarch_init_ftype *init,
- gdbarch_dump_tdep_ftype *dump_tdep)
+ gdbarch_dump_tdep_ftype *dump_tdep,
+ gdbarch_supports_arch_info_ftype *supports_arch_info)
{
struct gdbarch_registration **curr;
const struct bfd_arch_info *bfd_arch_info;
@@ -1306,6 +1310,7 @@ gdbarch_register (enum bfd_architecture bfd_architecture,
(*curr)->bfd_architecture = bfd_architecture;
(*curr)->init = init;
(*curr)->dump_tdep = dump_tdep;
+ (*curr)->supports_arch_info = supports_arch_info;
(*curr)->arches = NULL;
(*curr)->next = NULL;
}
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index a1167f21eca..f4efd8c0bc7 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -270,10 +270,12 @@ struct gdbarch_info
typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
+typedef bool (gdbarch_supports_arch_info_ftype) (const struct bfd_arch_info *);
extern void gdbarch_register (enum bfd_architecture architecture,
gdbarch_init_ftype *init,
- gdbarch_dump_tdep_ftype *dump_tdep = nullptr);
+ gdbarch_dump_tdep_ftype *dump_tdep = nullptr,
+ gdbarch_supports_arch_info_ftype *supports_arch_info = nullptr);
/* Return a vector of the valid architecture names. Since architectures are
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-02-02 15:08 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-02 15:08 [binutils-gdb] gdb: add supports_arch_info callback to gdbarch_register Simon Marchi
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).