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perf augmented_raw_syscalls: Rename augmented_args_filename to augmented_args_payload 

It'll get other stuff in there than just filenames, starting with
sockaddr for 'connect' and 'bind'.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-bsexidtsn91ehdpzcd6n5fm9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-07-16 15:33:20 -03:00
parent 8b8044e5c9
commit 6f56367493
1 changed files with 12 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
tools/perf/examples/bpf/augmented_raw_syscalls.c
View File

@ -67,13 +67,15 @@ struct augmented_filename {
pid_filter(pids_filtered);
struct augmented_args_filename {
struct augmented_args_payload {
struct syscall_enter_args args;
struct {
struct augmented_filename filename;
struct augmented_filename filename2;
};
};
bpf_map(augmented_filename_map, PERCPU_ARRAY, int, struct augmented_args_filename, 1);
bpf_map(augmented_args_tmp, PERCPU_ARRAY, int, struct augmented_args_payload, 1);
static inline
unsigned int augmented_filename__read(struct augmented_filename *augmented_filename,
@ -111,7 +113,7 @@ int syscall_unaugmented(struct syscall_enter_args *args)
/*
* This will be tail_called from SEC("raw_syscalls:sys_enter"), so will find in
* augmented_filename_map what was read by that raw_syscalls:sys_enter and go
* augmented_args_tmp what was read by that raw_syscalls:sys_enter and go
* on from there, reading the first syscall arg as a string, i.e. open's
* filename.
*/
@ -119,7 +121,7 @@ SEC("!syscalls:sys_enter_open")
int sys_enter_open(struct syscall_enter_args *args)
{
int key = 0;
struct augmented_args_filename *augmented_args = bpf_map_lookup_elem(&augmented_filename_map, &key);
struct augmented_args_payload *augmented_args = bpf_map_lookup_elem(&augmented_args_tmp, &key);
const void *filename_arg = (const void *)args->args[0];
unsigned int len = sizeof(augmented_args->args);
@ -136,7 +138,7 @@ SEC("!syscalls:sys_enter_openat")
int sys_enter_openat(struct syscall_enter_args *args)
{
int key = 0;
struct augmented_args_filename *augmented_args = bpf_map_lookup_elem(&augmented_filename_map, &key);
struct augmented_args_payload *augmented_args = bpf_map_lookup_elem(&augmented_args_tmp, &key);
const void *filename_arg = (const void *)args->args[1];
unsigned int len = sizeof(augmented_args->args);
@ -153,7 +155,7 @@ SEC("!syscalls:sys_enter_renameat")
int sys_enter_renameat(struct syscall_enter_args *args)
{
int key = 0;
struct augmented_args_filename *augmented_args = bpf_map_lookup_elem(&augmented_filename_map, &key);
struct augmented_args_payload *augmented_args = bpf_map_lookup_elem(&augmented_args_tmp, &key);
const void *oldpath_arg = (const void *)args->args[1],
*newpath_arg = (const void *)args->args[3];
unsigned int len = sizeof(augmented_args->args), oldpath_len;
@ -171,7 +173,7 @@ int sys_enter_renameat(struct syscall_enter_args *args)
SEC("raw_syscalls:sys_enter")
int sys_enter(struct syscall_enter_args *args)
{
struct augmented_args_filename *augmented_args;
struct augmented_args_payload *augmented_args;
/*
* We start len, the amount of data that will be in the perf ring
* buffer, if this is not filtered out by one of pid_filter__has(),
@ -185,7 +187,7 @@ int sys_enter(struct syscall_enter_args *args)
struct syscall *syscall;
int key = 0;
augmented_args = bpf_map_lookup_elem(&augmented_filename_map, &key);
augmented_args = bpf_map_lookup_elem(&augmented_args_tmp, &key);
if (augmented_args == NULL)
return 1;