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contrib: don't use bpf_usdt_readarg_p

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0xb10c
2025-01-07 17:29:32 +01:00
parent 35ae6ff60f
commit ec47ba349d
3 changed files with 51 additions and 26 deletions
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30
contrib/tracing/mempool_monitor.py
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@@ -65,8 +65,9 @@ BPF_PERF_OUTPUT(replaced_events);
int trace_added(struct pt_regs *ctx) {
struct added_event added = {};
bpf_usdt_readarg_p(1, ctx, &added.hash, HASH_LENGTH);
void *phash = NULL;
bpf_usdt_readarg(1, ctx, phash);
bpf_probe_read_user(&added.hash, sizeof(added.hash), phash);
bpf_usdt_readarg(2, ctx, &added.vsize);
bpf_usdt_readarg(3, ctx, &added.fee);
@@ -76,9 +77,11 @@ int trace_added(struct pt_regs *ctx) {
int trace_removed(struct pt_regs *ctx) {
struct removed_event removed = {};
bpf_usdt_readarg_p(1, ctx, &removed.hash, HASH_LENGTH);
bpf_usdt_readarg_p(2, ctx, &removed.reason, MAX_REMOVAL_REASON_LENGTH);
void *phash = NULL, *preason = NULL;
bpf_usdt_readarg(1, ctx, phash);
bpf_probe_read_user(&removed.hash, sizeof(removed.hash), phash);
bpf_usdt_readarg(1, ctx, preason);
bpf_probe_read_user_str(&removed.reason, sizeof(removed.reason), preason);
bpf_usdt_readarg(3, ctx, &removed.vsize);
bpf_usdt_readarg(4, ctx, &removed.fee);
bpf_usdt_readarg(5, ctx, &removed.entry_time);
@@ -89,22 +92,25 @@ int trace_removed(struct pt_regs *ctx) {
int trace_rejected(struct pt_regs *ctx) {
struct rejected_event rejected = {};
bpf_usdt_readarg_p(1, ctx, &rejected.hash, HASH_LENGTH);
bpf_usdt_readarg_p(2, ctx, &rejected.reason, MAX_REJECT_REASON_LENGTH);
void *phash = NULL, *preason = NULL;
bpf_usdt_readarg(1, ctx, phash);
bpf_probe_read_user(&rejected.hash, sizeof(rejected.hash), phash);
bpf_usdt_readarg(1, ctx, preason);
bpf_probe_read_user_str(&rejected.reason, sizeof(rejected.reason), preason);
rejected_events.perf_submit(ctx, &rejected, sizeof(rejected));
return 0;
}
int trace_replaced(struct pt_regs *ctx) {
struct replaced_event replaced = {};
bpf_usdt_readarg_p(1, ctx, &replaced.replaced_hash, HASH_LENGTH);
void *phash_replaced = NULL, *phash_replacement = NULL;
bpf_usdt_readarg(1, ctx, phash_replaced);
bpf_probe_read_user(&replaced.replaced_hash, sizeof(replaced.replaced_hash), phash_replaced);
bpf_usdt_readarg(2, ctx, &replaced.replaced_vsize);
bpf_usdt_readarg(3, ctx, &replaced.replaced_fee);
bpf_usdt_readarg(4, ctx, &replaced.replaced_entry_time);
bpf_usdt_readarg_p(5, ctx, &replaced.replacement_hash, HASH_LENGTH);
bpf_usdt_readarg(5, ctx, phash_replacement);
bpf_probe_read_user(&replaced.replacement_hash, sizeof(replaced.replacement_hash), phash_replacement);
bpf_usdt_readarg(6, ctx, &replaced.replacement_vsize);
bpf_usdt_readarg(7, ctx, &replaced.replacement_fee);