On Mon, Mar 23, 2015 at 6:18 PM, Duy Nguyen <pclouds@xxxxxxxxx> wrote:
> Could you share these changes? I'm just wondering if we can add kcov
> support to the test suite.
In this case it's more of an embarrassing hack, as I just needed a way
to make git run "kcov outdir git-pull.sh" whenever git pull is called
since kcov will not instrument any spawned subprocesses. I modified
execv_dashed_external() in git.c to prepend kcov to argv (diff
probably munged by gmail):
diff --git a/git.c b/git.c
index 8c7ee9c..0f8e7d4 100644
--- a/git.c
+++ b/git.c
@@ -536,6 +536,8 @@ static void execv_dashed_external(const char **argv)
struct strbuf cmd = STRBUF_INIT;
const char *tmp;
int status;
+ struct argv_array args = ARGV_ARRAY_INIT;
+ int i;
if (use_pager == -1)
use_pager = check_pager_config(argv[0]);
@@ -551,6 +553,11 @@ static void execv_dashed_external(const char **argv)
*/
tmp = argv[0];
argv[0] = cmd.buf;
+ argv_array_push(&args, "kcov");
+ argv_array_push(&args, "/home/pyokagan/pyk/git/kcov");
+ argv_array_push(&args, cmd.buf);
+ for (i = 1; argv[i]; i++)
+ argv_array_push(&args, argv[i]);
trace_argv_printf(argv, "trace: exec:");
@@ -558,7 +565,7 @@ static void execv_dashed_external(const char **argv)
* if we fail because the command is not found, it is
* OK to return. Otherwise, we just pass along the status code.
*/
- status = run_command_v_opt(argv, RUN_SILENT_EXEC_FAILURE |
RUN_CLEAN_ON_EXIT);
+ status = run_command_v_opt(args.argv, RUN_SILENT_EXEC_FAILURE
| RUN_CLEAN_ON_EXIT);
if (status >= 0 || errno != ENOENT)
exit(status);
I'm guessing a real solution is to follow what the test suite does for
the --valgrind option, though I haven't looked into it in detail.
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