X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=BUGS.markdown;h=d8258a7be883deae8069dda6e2fbc7da8a699a37;hb=d9d9d22837705de6a2c42ad3f9b23223a2b98fe0;hp=56049c1de24557e3901bc0c8b023509f3c9ef6be;hpb=2cca1ad5d2cdd192b69eee09f5f3b63f0fd939b6;p=apitrace

diff --git a/BUGS.markdown b/BUGS.markdown
index 56049c1..d8258a7 100644
--- a/BUGS.markdown
+++ b/BUGS.markdown
@@ -176,7 +176,8 @@ Linux/MacOSX
 ------------
 
 Please rebuild apitrace with debugging information, by passing
-`-DCMAKE_BUILD_TYPE=Debug` to cmake.
+`-DCMAKE_BUILD_TYPE=Debug` to cmake, or editing its value in `CMakeCache.txt`
+and rebuilding.
 
 To obtain a stack back-trace, run the application with gdb from a terminal:
 
@@ -185,6 +186,10 @@ To obtain a stack back-trace, run the application with gdb from a terminal:
     ...
     (gdb) bt
 
+On Linux, to trace an application inside gdb the `LD_PRELOAD` environment
+variable should be set from within gdb like:
+
+    gdb --ex 'set exec-wrapper env LD_PRELOAD=/path/to/glxtrace.so' --args application arg1 ...
 
 See also more detailed and Distro specific instructions: