From 0451bcec4a29bb6b8945bf80d58cfec1f35aee95 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Wed, 3 Feb 2016 19:17:35 -0500 Subject: [PATCH] Expect filter context identifiers starting with $ctx. Signed-off-by: Mathieu Desnoyers --- lttng-context.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/lttng-context.c b/lttng-context.c index 9bf4d800..1121f6ef 100644 --- a/lttng-context.c +++ b/lttng-context.c @@ -56,14 +56,20 @@ EXPORT_SYMBOL_GPL(lttng_find_context); int lttng_get_context_index(struct lttng_ctx *ctx, const char *name) { unsigned int i; + const char *subname; if (!ctx) return -1; + if (strncmp(name, "$ctx.", strlen("$ctx.")) == 0) { + subname = name + strlen("$ctx."); + } else { + subname = name; + } for (i = 0; i < ctx->nr_fields; i++) { /* Skip allocated (but non-initialized) contexts */ if (!ctx->fields[i].event_field.name) continue; - if (!strcmp(ctx->fields[i].event_field.name, name)) + if (!strcmp(ctx->fields[i].event_field.name, subname)) return i; } return -1; -- 2.34.1