From: Larry McVoy <lm@mcvoy.com>
To: Bakul Shah <bakul@iitbombay.org>
Cc: segaloco <segaloco@protonmail.com>, coff@tuhs.org
Subject: [COFF] Re: [TUHS] Re: Conditions, AKA exceptions. (Was: I can't drive 55: "GOTO considered harmful" 55th anniversary)
Date: Fri, 10 Mar 2023 09:42:22 -0800 [thread overview]
Message-ID: <20230310174222.GB9225@mcvoy.com> (raw)
In-Reply-To: <69248852-1701-4938-8A4D-3B27F3018E83@iitbombay.org>
On Fri, Mar 10, 2023 at 09:35:44AM -0800, Bakul Shah wrote:
> During development the runtime should simply invoke a debugger in this case. This should be perfectly doable but for some reason it is considered acceptable to crash a program! I don???t want to run a program *under a debugger* but want it invoked at the right time!
Indeed.
void
gdb_backtrace(void)
{
FILE *f;
char *cmd;
unless (getenv("_BK_BACKTRACE")) return;
unless ((f = efopen("BK_TTYPRINTF")) ||
(f = fopen(DEV_TTY, "w"))) {
f = stderr;
}
cmd = aprintf("gdb -batch -ex backtrace '%s/bk' %u 1>&%d 2>&%d",
bin, getpid(), fileno(f), fileno(f));
system(cmd);
free(cmd);
if (f != stderr) fclose(f);
}
next prev parent reply other threads:[~2023-03-10 17:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-10 17:11 Bakul Shah
2023-03-10 17:28 ` segaloco via COFF
2023-03-10 17:34 ` Larry McVoy
2023-03-10 17:35 ` Bakul Shah
2023-03-10 17:42 ` Larry McVoy [this message]
2023-03-11 11:28 ` [COFF] Conditions, AKA exceptions Ralph Corderoy
2023-03-12 4:23 ` [COFF] " Theodore Ts'o
2023-03-12 10:44 ` Ralph Corderoy
2023-03-12 16:46 ` Paul Winalski
2023-03-12 16:53 ` Larry McVoy
2023-03-10 17:43 ` [COFF] Re: [TUHS] Re: Conditions, AKA exceptions. (Was: I can't drive 55: "GOTO considered harmful" 55th anniversary) segaloco via COFF
2023-03-10 18:03 ` Dan Cross
2023-03-10 18:57 ` Bakul Shah
2023-03-10 19:57 ` Marshall Conover
2023-03-13 16:47 ` [COFF] Conditions, AKA exceptions Ralph Corderoy
2023-03-13 17:10 ` [COFF] " Paul Winalski
2023-03-13 21:12 ` Dave Horsfall
2023-03-10 17:47 ` [COFF] Re: [TUHS] Re: Conditions, AKA exceptions. (Was: I can't drive 55: "GOTO considered harmful" 55th anniversary) Bakul Shah
[not found] <20230310121550.9A80718C080@mercury.lcs.mit.edu>
[not found] ` <20230310131512.891A8212A8@orac.inputplus.co.uk>
2023-03-10 14:20 ` Larry Stewart
2023-03-10 18:09 ` Steffen Nurpmeso
2023-03-10 17:34 ` Warner Losh
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