OpenE2K/binutils-gdb
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Mostly MIPS symbol-reading and general symbol-reading fixups.

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This commit is contained in:
John Gilmore 1991-07-21 13:02:48 +00:00
parent eb752e4e4e
commit ef98d5ac06
4 changed files with 154 additions and 135 deletions
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50
gdb/TODO
View File

@ -24,7 +24,8 @@ Speed up single stepping by not inserting and removing breakpoints
each time the inferior starts and stops.
Speed up watchpoints by not single-stepping them, but do something
faster like single-line execution.
faster like single-line execution. Speed them up tremendously on
machines that have watchpoint registers.
Update gdb.texinfo to include doc on the directory structure and
the various tricks of building gdb.
@ -33,8 +34,6 @@ Do a tutorial in gdb.texinfo on how to do simple things in gdb.
E.g. how to set a breakpoint that just prints something and continues.
How to break on aborts. Etc.
Do a "new features" section for release 4.
Provide "voodoo" debugging of core files. This creates a zombie
process as a child of the debugger, and loads it up with the data,
stack, and regs of the core file. This allows you to call functions
@ -156,8 +155,6 @@ help completion, help history should work.
Symbol completion doesn't handle e.g. W::f. (symtab.c,
make_symbol_completion_list).
AMD version: ^C should do ^Ak to stop ebmon.
Check that we can handle stack trace through varargs AND alloca in same
function, on 29K.
@ -253,8 +250,6 @@ Breakpoints should not be inserted and deleted all the time. Only the
one(s) there should be removed when we have to step over one. Support
breakpoints that don't have to be removed to step over them.
Stop reading stop_registers!
Generalize and Standardize the RPC interface to a target program,
improve it beyond the "ptrace" interface, and see if it can become a standard
for remote debugging. Is WRS interested in donating their target-end
@ -273,22 +268,13 @@ When quitting with a running program, if a core file was previously
examined, you get "Couldn't read float regs from core file"...if
indeed it can't. generic_mourn_inferior...
...
Check signal argument to remote proceed's and error if set.
Handle floating point registers in core files under BFD. Currently
they are punted.
Sort help and info output.
Re-organize help categories into things that tend to fit on a screen
and hang together.
When trying to print source lines but you can't find the file,
print the file name and line number, and leave it selected anyway
so "i source" will show it.
renote-nindy.c handles interrupts poorly; it error()s out of badly
chosen places, e.g. leaving current_frame zero, which causes core dumps
on the next command.
@ -327,6 +313,34 @@ ptype &malloc ==> "char *(*)()"
call printf ("%x\n", malloc) ==> wierd value, should be same as
call printf ("%x\n", &malloc) ==> correct value
Fix symbol reading in the presence of interrupts. It currently leaves a
cleanup to blow away the entire symbol table when a QUIT occurs.
Fix dbxread.c symbol reading in the presence of interrupts. It currently
leaves a cleanup to blow away the entire symbol table when a QUIT occurs.
Mipsread.c reads include files depth-first, because the dependencies
in the psymtabs are way too inclusive (it seems to me). Figure out what
really depends on what, to avoid recursing 20 or 30 times while reading
real symtabs.
value_add() should be subtracting the lower bound of arrays, if known,
and possibly checking against the upper bound for error reporting.
mipsread.c symbol table allocation and deallocation should be checked.
My suspicion is that it's full of memory leaks.
SunOS should have a target_lookup_symbol() for common'd things allocated
by the shared library linker ld.so.
When listing source lines, check for a preceding \n, to verify that
the file hasn't changed out from under us.
When listing source lines, eat leading whitespace corresponding to the
line-number prefix we print. This avoids long lines wrapping.
mipsread.c needs to check for old symtabs and psymtabs for the same
files, the way it happens for dbxread.c and coffread.c, for VxWorks
incremental symbol table reloading.
When attached to a non-child process, ^C or other signals are not
propagated to the child. Do this in the GDB signal handler, using
target_kill(). AMD version: ^C should do ^Ak to stop ebmon.

4
gdb/cplus-dem.c
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@ -105,7 +105,7 @@ static char **typevec = 0;
static int ntypes = 0;
static int typevec_size = 0;
const static struct {
const static struct optable {
const char *in;
const char *out;
} optable[] = {
@ -150,7 +150,7 @@ const static struct {
/* Beware: these aren't '\0' terminated. */
typedef struct {
typedef struct string {
char *b; /* pointer to start of string */
char *p; /* pointer after last character */
char *e; /* pointer after end of allocated space */

9
gdb/mtrace.c
View File

@ -118,14 +118,19 @@ DEFUN(tr_reallochook, (ptr, size), PTR ptr AND size_t size)
return hdr;
}
/* We enable tracing if either the environment variable MALLOC_TRACE
is set, or if the variable mallwatch has been patched to an address
that the debugging user wants us to stop on. When patching mallwatch,
don't forget to set a breakpoint on tr_break! */
void
mtrace()
{
char *mallfile;
mallfile = getenv (mallenv);
if (mallfile) {
mallstream = fopen (mallfile, "w");
if (mallfile || mallwatch) {
mallstream = fopen (mallfile? mallfile: "/dev/null", "w");
if (mallstream) {
/* Be sure it doesn't malloc its buffer! */
setbuf (mallstream, mallbuf);