From 91f63163443b7f89a4d273fbfb48c00265db5443 Mon Sep 17 00:00:00 2001 From: Michael Ensslin Date: Thu, 19 Mar 2020 10:40:10 +0100 Subject: [PATCH] Add 'press g to attach gdb' feature --- Action.c | 20 ++++++++++++++++++++ htop.1.in | 3 +++ 2 files changed, 23 insertions(+) diff --git a/Action.c b/Action.c index 9a7c3c560..afaf50b32 100644 --- a/Action.c +++ b/Action.c @@ -392,6 +392,24 @@ static Htop_Reaction actionStrace(State* st) { return HTOP_REFRESH | HTOP_REDRAW_BAR; } +static Htop_Reaction actionGdb(State* st) { + Process* p = (Process*) Panel_getSelected(st->panel); + if (!p) return HTOP_OK; + + char buf[32]; + xSnprintf(buf, sizeof(buf), "gdb -p %d", (int) p->pid); + + endwin(); + int result = system(buf); + refresh(); + + // we don't really care about the invocation result + (void) result; + + CRT_enableDelay(); + return HTOP_REFRESH | HTOP_REDRAW_BAR; +} + static Htop_Reaction actionTag(State* st) { Process* p = (Process*) Panel_getSelected(st->panel); if (!p) return HTOP_OK; @@ -437,6 +455,7 @@ static const struct { const char* key; const char* info; } helpRight[] = { { .key = " i: ", .info = "set IO priority" }, { .key = " l: ", .info = "list open files with lsof" }, { .key = " s: ", .info = "trace syscalls with strace" }, + { .key = " g: ", .info = "debug with gdb" }, { .key = " ", .info = "" }, { .key = " F2 C S: ", .info = "setup" }, { .key = " F1 h: ", .info = "show this help screen" }, @@ -588,6 +607,7 @@ void Action_setBindings(Htop_Action* keys) { keys[KEY_F(2)] = actionSetup; keys['l'] = actionLsof; keys['s'] = actionStrace; + keys['g'] = actionGdb; keys[' '] = actionTag; keys['\014'] = actionRedraw; // Ctrl+L keys[KEY_F(1)] = actionHelp; diff --git a/htop.1.in b/htop.1.in index 149b1465a..f25a86e68 100644 --- a/htop.1.in +++ b/htop.1.in @@ -101,6 +101,9 @@ update of system calls issued by the process. .B l Display open files for a process: if lsof(1) is installed, pressing this key will display the list of file descriptors opened by the process. +.B g +Debug process: if gdb(1) is installed, pressing this key will attach it +to the currently selected process, allowing you to debug it. .TP .B F1, h, ? Go to the help screen