From 3839b5e390c53b74f58003cf082030df02391f9a Mon Sep 17 00:00:00 2001 From: johannst Date: Sat, 9 Sep 2023 08:32:23 +0000 Subject: deploy: 30bc89f36a0310eb5c9c710f0544577b3688fd77 --- tools/gdb.html | 8 +++++++- tools/gdbserver.html | 8 +++++++- 2 files changed, 14 insertions(+), 2 deletions(-) (limited to 'tools') diff --git a/tools/gdb.html b/tools/gdb.html index 8dbdb74..72e3f2e 100644 --- a/tools/gdb.html +++ b/tools/gdb.html @@ -519,10 +519,16 @@ which its expression is valid. main () at test.c:10 10 set(&s, 2); +# Define the watchpoint on the location of the object to watch. + +(gdb) watch -l s->v + +# This is equivalent to the following. + (gdb) p &s->v $1 = (int *) 0x7fffffffe594 -# Define a watchpoint o the address of the member variable of the s instance. +# Define a watchpoint to the address of the member variable of the s instance. # This of course only makes sense as long as the s instance is not moved in memory. (gdb) watch *0x7fffffffe594 diff --git a/tools/gdbserver.html b/tools/gdbserver.html index 1f70c8c..ea14ba9 100644 --- a/tools/gdbserver.html +++ b/tools/gdbserver.html @@ -175,17 +175,23 @@ opts: --disable-randomization --no-disable-randomization + --wrapper W -- comm: host:port tty -

Example

+

Example

# Start gdbserver.
 gdbserver localhost:1234 /bin/ls
 
 # Attach gdb.
 gdb -ex 'target remote localhost:1234'
+
+

Wrapper example: Set environment variables just for the debugee

+

Set env as execution wrapper with some variables. +The wrapper will be executed before the debugee.

+
gdbserver --wrapper env FOO=123 BAR=321 -- :12345 /bin/ls
 
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