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* [binutils-gdb] Fix the guile build
@ 2022-10-10 15:34 Tom Tromey
0 siblings, 0 replies; only message in thread
From: Tom Tromey @ 2022-10-10 15:34 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=79aafec96b237165e66f14ba963214fb709af847
commit 79aafec96b237165e66f14ba963214fb709af847
Author: Tom Tromey <tromey@adacore.com>
Date: Mon Oct 10 07:47:32 2022 -0600
Fix the guile build
The frame_info_ptr patches broke the build with Guile. This patch
fixes the problem. In mos cases I chose to preserve the use of
frame_info_ptr, at least where I could be sure that the object
lifetime did not interact with Guile's longjmp-based exception scheme.
Tested on x86-64 Fedora 34.
Diff:
---
gdb/guile/guile-internal.h | 2 +-
gdb/guile/scm-frame.c | 169 +++++++++++++++++++++++++++------------------
gdb/guile/scm-symbol.c | 10 +--
3 files changed, 107 insertions(+), 74 deletions(-)
diff --git a/gdb/guile/guile-internal.h b/gdb/guile/guile-internal.h
index 30cc5c307ae..efd5cfd18c6 100644
--- a/gdb/guile/guile-internal.h
+++ b/gdb/guile/guile-internal.h
@@ -447,7 +447,7 @@ extern int frscm_is_frame (SCM scm);
extern frame_smob *frscm_get_frame_smob_arg_unsafe (SCM frame_scm, int arg_pos,
const char *func_name);
-extern struct frame_info *frscm_frame_smob_to_frame (frame_smob *);
+extern struct frame_info_ptr frscm_frame_smob_to_frame (frame_smob *);
/* scm-iterator.c */
diff --git a/gdb/guile/scm-frame.c b/gdb/guile/scm-frame.c
index 159603b8008..f7ca141b2a7 100644
--- a/gdb/guile/scm-frame.c
+++ b/gdb/guile/scm-frame.c
@@ -134,7 +134,7 @@ frscm_eq_frame_smob (const void *ap, const void *bp)
const frame_smob *a = (const frame_smob *) ap;
const frame_smob *b = (const frame_smob *) bp;
- return (frame_id_eq (a->frame_id, b->frame_id)
+ return (a->frame_id == b->frame_id
&& a->inferior == b->inferior
&& a->inferior != NULL);
}
@@ -245,7 +245,7 @@ frscm_scm_from_frame (struct frame_info *frame, struct inferior *inferior)
/* If we've already created a gsmob for this frame, return it.
This makes frames eq?-able. */
htab = frscm_inferior_frame_map (inferior);
- f_smob_for_lookup.frame_id = get_frame_id (frame);
+ f_smob_for_lookup.frame_id = get_frame_id (frame_info_ptr (frame));
f_smob_for_lookup.inferior = inferior;
slot = gdbscm_find_eqable_gsmob_ptr_slot (htab, &f_smob_for_lookup.base);
if (*slot != NULL)
@@ -253,22 +253,24 @@ frscm_scm_from_frame (struct frame_info *frame, struct inferior *inferior)
try
{
+ frame_info_ptr frame_ptr (frame);
+
/* Try to get the previous frame, to determine if this is the last frame
in a corrupt stack. If so, we need to store the frame_id of the next
frame and not of this one (which is possibly invalid). */
- if (get_prev_frame (frame) == NULL
- && get_frame_unwind_stop_reason (frame) != UNWIND_NO_REASON
- && get_next_frame (frame) != NULL)
+ if (get_prev_frame (frame_ptr) == NULL
+ && get_frame_unwind_stop_reason (frame_ptr) != UNWIND_NO_REASON
+ && get_next_frame (frame_ptr) != NULL)
{
- frame_id = get_frame_id (get_next_frame (frame));
+ frame_id = get_frame_id (get_next_frame (frame_ptr));
frame_id_is_next = 1;
}
else
{
- frame_id = get_frame_id (frame);
+ frame_id = get_frame_id (frame_ptr);
frame_id_is_next = 0;
}
- gdbarch = get_frame_arch (frame);
+ gdbarch = get_frame_arch (frame_ptr);
}
catch (const gdb_exception &except)
{
@@ -359,12 +361,10 @@ frscm_get_frame_smob_arg_unsafe (SCM self, int arg_pos, const char *func_name)
This function calls GDB routines, so don't assume a GDB error will
not be thrown. */
-struct frame_info *
+struct frame_info_ptr
frscm_frame_smob_to_frame (frame_smob *f_smob)
{
- struct frame_info *frame;
-
- frame = frame_find_by_id (f_smob->frame_id);
+ frame_info_ptr frame = frame_find_by_id (f_smob->frame_id);
if (frame == NULL)
return NULL;
@@ -385,14 +385,15 @@ static SCM
gdbscm_frame_valid_p (SCM self)
{
frame_smob *f_smob;
- struct frame_info *frame = NULL;
+ bool result = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
+ result = frame != nullptr;
}
catch (const gdb_exception &except)
{
@@ -400,7 +401,7 @@ gdbscm_frame_valid_p (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- return scm_from_bool (frame != NULL);
+ return scm_from_bool (result);
}
/* (frame-name <gdb:frame>) -> string
@@ -413,7 +414,7 @@ gdbscm_frame_name (SCM self)
frame_smob *f_smob;
gdb::unique_xmalloc_ptr<char> name;
enum language lang = language_minimal;
- struct frame_info *frame = NULL;
+ bool found = false;
SCM result;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
@@ -421,9 +422,12 @@ gdbscm_frame_name (SCM self)
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- name = find_frame_funname (frame, &lang, NULL);
+ {
+ found = true;
+ name = find_frame_funname (frame, &lang, NULL);
+ }
}
catch (const gdb_exception &except)
{
@@ -431,7 +435,7 @@ gdbscm_frame_name (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -453,16 +457,19 @@ gdbscm_frame_type (SCM self)
{
frame_smob *f_smob;
enum frame_type type = NORMAL_FRAME;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- type = get_frame_type (frame);
+ {
+ found = true;
+ type = get_frame_type (frame);
+ }
}
catch (const gdb_exception &except)
{
@@ -470,7 +477,7 @@ gdbscm_frame_type (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -486,14 +493,15 @@ static SCM
gdbscm_frame_arch (SCM self)
{
frame_smob *f_smob;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
+ found = frame != nullptr;
}
catch (const gdb_exception &except)
{
@@ -501,7 +509,7 @@ gdbscm_frame_arch (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -517,15 +525,20 @@ static SCM
gdbscm_frame_unwind_stop_reason (SCM self)
{
frame_smob *f_smob;
- struct frame_info *frame = NULL;
- enum unwind_stop_reason stop_reason;
+ bool found = false;
+ enum unwind_stop_reason stop_reason = UNWIND_NO_REASON;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
+ if (frame != nullptr)
+ {
+ found = true;
+ stop_reason = get_frame_unwind_stop_reason (frame);
+ }
}
catch (const gdb_exception &except)
{
@@ -533,14 +546,12 @@ gdbscm_frame_unwind_stop_reason (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
}
- stop_reason = get_frame_unwind_stop_reason (frame);
-
return scm_from_int (stop_reason);
}
@@ -552,16 +563,19 @@ gdbscm_frame_pc (SCM self)
{
frame_smob *f_smob;
CORE_ADDR pc = 0;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- pc = get_frame_pc (frame);
+ {
+ pc = get_frame_pc (frame);
+ found = true;
+ }
}
catch (const gdb_exception &except)
{
@@ -569,7 +583,7 @@ gdbscm_frame_pc (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -586,16 +600,19 @@ gdbscm_frame_block (SCM self)
{
frame_smob *f_smob;
const struct block *block = NULL, *fn_block;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- block = get_frame_block (frame, NULL);
+ {
+ found = true;
+ block = get_frame_block (frame, NULL);
+ }
}
catch (const gdb_exception &except)
{
@@ -603,7 +620,7 @@ gdbscm_frame_block (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -638,16 +655,19 @@ gdbscm_frame_function (SCM self)
{
frame_smob *f_smob;
struct symbol *sym = NULL;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- sym = find_pc_function (get_frame_address_in_block (frame));
+ {
+ found = true;
+ sym = find_pc_function (get_frame_address_in_block (frame));
+ }
}
catch (const gdb_exception &except)
{
@@ -655,7 +675,7 @@ gdbscm_frame_function (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -676,16 +696,19 @@ gdbscm_frame_older (SCM self)
{
frame_smob *f_smob;
struct frame_info *prev = NULL;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- prev = get_prev_frame (frame);
+ {
+ found = true;
+ prev = get_prev_frame (frame).get ();
+ }
}
catch (const gdb_exception &except)
{
@@ -693,7 +716,7 @@ gdbscm_frame_older (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -714,16 +737,19 @@ gdbscm_frame_newer (SCM self)
{
frame_smob *f_smob;
struct frame_info *next = NULL;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- next = get_next_frame (frame);
+ {
+ found = true;
+ next = get_next_frame (frame).get ();
+ }
}
catch (const gdb_exception &except)
{
@@ -731,7 +757,7 @@ gdbscm_frame_newer (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -751,16 +777,19 @@ gdbscm_frame_sal (SCM self)
{
frame_smob *f_smob;
struct symtab_and_line sal;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- sal = find_frame_sal (frame);
+ {
+ found = true;
+ sal = find_frame_sal (frame);
+ }
}
catch (const gdb_exception &except)
{
@@ -768,7 +797,7 @@ gdbscm_frame_sal (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -785,7 +814,7 @@ gdbscm_frame_read_register (SCM self, SCM register_scm)
{
char *register_str;
struct value *value = NULL;
- struct frame_info *frame = NULL;
+ bool found = false;
frame_smob *f_smob;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
@@ -798,9 +827,10 @@ gdbscm_frame_read_register (SCM self, SCM register_scm)
{
int regnum;
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame)
{
+ found = true;
regnum = user_reg_map_name_to_regnum (get_frame_arch (frame),
register_str,
strlen (register_str));
@@ -816,7 +846,7 @@ gdbscm_frame_read_register (SCM self, SCM register_scm)
xfree (register_str);
GDBSCM_HANDLE_GDB_EXCEPTION (except);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -856,7 +886,7 @@ gdbscm_frame_read_var (SCM self, SCM symbol_scm, SCM rest)
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame = frscm_frame_smob_to_frame (f_smob).get ();
}
catch (const gdb_exception &except)
{
@@ -905,7 +935,7 @@ gdbscm_frame_read_var (SCM self, SCM symbol_scm, SCM rest)
struct block_symbol lookup_sym;
if (block == NULL)
- block = get_frame_block (frame, NULL);
+ block = get_frame_block (frame_info_ptr (frame), NULL);
lookup_sym = lookup_symbol (var_name.get (), block, VAR_DOMAIN,
NULL);
var = lookup_sym.symbol;
@@ -932,7 +962,7 @@ gdbscm_frame_read_var (SCM self, SCM symbol_scm, SCM rest)
try
{
- value = read_var_value (var, block, frame);
+ value = read_var_value (var, block, frame_info_ptr (frame));
}
catch (const gdb_exception &except)
{
@@ -950,16 +980,19 @@ static SCM
gdbscm_frame_select (SCM self)
{
frame_smob *f_smob;
- struct frame_info *frame = NULL;
+ bool found = false;
f_smob = frscm_get_frame_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
gdbscm_gdb_exception exc {};
try
{
- frame = frscm_frame_smob_to_frame (f_smob);
+ frame_info_ptr frame = frscm_frame_smob_to_frame (f_smob);
if (frame != NULL)
- select_frame (frame);
+ {
+ found = true;
+ select_frame (frame);
+ }
}
catch (const gdb_exception &except)
{
@@ -967,7 +1000,7 @@ gdbscm_frame_select (SCM self)
}
GDBSCM_HANDLE_GDB_EXCEPTION (exc);
- if (frame == NULL)
+ if (!found)
{
gdbscm_invalid_object_error (FUNC_NAME, SCM_ARG1, self,
_("<gdb:frame>"));
@@ -987,7 +1020,7 @@ gdbscm_newest_frame (void)
gdbscm_gdb_exception exc {};
try
{
- frame = get_current_frame ();
+ frame = get_current_frame ().get ();
}
catch (const gdb_exception &except)
{
@@ -1009,7 +1042,7 @@ gdbscm_selected_frame (void)
gdbscm_gdb_exception exc {};
try
{
- frame = get_selected_frame (_("No frame is currently selected"));
+ frame = get_selected_frame (_("No frame is currently selected")).get ();
}
catch (const gdb_exception &except)
{
diff --git a/gdb/guile/scm-symbol.c b/gdb/guile/scm-symbol.c
index 4344a633334..b5704cdcb18 100644
--- a/gdb/guile/scm-symbol.c
+++ b/gdb/guile/scm-symbol.c
@@ -520,7 +520,6 @@ gdbscm_symbol_value (SCM self, SCM rest)
int frame_pos = -1;
SCM frame_scm = SCM_BOOL_F;
frame_smob *f_smob = NULL;
- struct frame_info *frame_info = NULL;
struct value *value = NULL;
gdbscm_parse_function_args (FUNC_NAME, SCM_ARG2, keywords, "#O",
@@ -537,9 +536,11 @@ gdbscm_symbol_value (SCM self, SCM rest)
gdbscm_gdb_exception exc {};
try
{
+ frame_info_ptr frame_info;
+
if (f_smob != NULL)
{
- frame_info = frscm_frame_smob_to_frame (f_smob);
+ frame_info = frame_info_ptr (frscm_frame_smob_to_frame (f_smob));
if (frame_info == NULL)
error (_("Invalid frame"));
}
@@ -598,12 +599,11 @@ gdbscm_lookup_symbol (SCM name_scm, SCM rest)
}
else
{
- struct frame_info *selected_frame;
-
gdbscm_gdb_exception exc {};
try
{
- selected_frame = get_selected_frame (_("no frame selected"));
+ frame_info_ptr selected_frame
+ = get_selected_frame (_("no frame selected"));
block = get_frame_block (selected_frame, NULL);
}
catch (const gdb_exception &ex)
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