aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/tools/perf/util/llvm-utils.c
diff options
context:
space:
mode:
authorDmitry Torokhov <dmitry.torokhov@gmail.com>2018-06-04 13:33:12 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2018-06-04 13:33:12 -0700
commitc13aca79ff3c4af5fd31a5b2743a90eba6e36a26 (patch)
tree8f77894f61822d1ae5285c07c801af7c62f71afd /tools/perf/util/llvm-utils.c
parentInput: elan_i2c_smbus - fix corrupted stack (diff)
parentInput: goodix - add new ACPI id for GPD Win 2 touch screen (diff)
downloadwireguard-linux-c13aca79ff3c4af5fd31a5b2743a90eba6e36a26.tar.xz
wireguard-linux-c13aca79ff3c4af5fd31a5b2743a90eba6e36a26.zip
Merge branch 'next' into for-linus
Prepare input updates for 4.18 merge window.
Diffstat (limited to '')
-rw-r--r--tools/perf/util/llvm-utils.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index 4952b429caa7..1cca0a2fa641 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -433,6 +433,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
char serr[STRERR_BUFSIZE];
char *kbuild_dir = NULL, *kbuild_include_opts = NULL;
const char *template = llvm_param.clang_bpf_cmd_template;
+ char *command_echo, *command_out;
if (path[0] != '-' && realpath(path, abspath) == NULL) {
err = errno;
@@ -487,6 +488,16 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
(path[0] == '-') ? path : abspath);
pr_debug("llvm compiling command template: %s\n", template);
+
+ if (asprintf(&command_echo, "echo -n \"%s\"", template) < 0)
+ goto errout;
+
+ err = read_from_pipe(command_echo, (void **) &command_out, NULL);
+ if (err)
+ goto errout;
+
+ pr_debug("llvm compiling command : %s\n", command_out);
+
err = read_from_pipe(template, &obj_buf, &obj_buf_sz);
if (err) {
pr_err("ERROR:\tunable to compile %s\n", path);
@@ -497,6 +508,8 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
goto errout;
}
+ free(command_echo);
+ free(command_out);
free(kbuild_dir);
free(kbuild_include_opts);
@@ -509,6 +522,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
*p_obj_buf_sz = obj_buf_sz;
return 0;
errout:
+ free(command_echo);
free(kbuild_dir);
free(kbuild_include_opts);
free(obj_buf);