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add debug info module

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varun-r-mallya
2025-09-30 14:29:20 +05:30
parent 26f8f769c5
commit eb73001063
8 changed files with 67 additions and 52 deletions
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41
examples/c-form/ex3-2.bpf.c
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@ -2,38 +2,39 @@
#include <bpf/bpf_helpers.h>
#define u64 unsigned long long
#define u32 unsigned int
// Define the map
struct {
__uint(type, BPF_MAP_TYPE_HASH);
__type(key, u64);
__type(value, u64);
__type(value, u32);
__uint(max_entries, 4);
} last SEC(".maps");
// Handler for syscall entry
SEC("tracepoint/syscalls/sys_enter_execve")
int hello(void *ctx) {
bpf_printk("entered");
bpf_printk("multi constant support");
return 0;
}
// // Handler for syscall entry
// SEC("tracepoint/syscalls/sys_enter_execve")
// int hello(void *ctx) {
// bpf_printk("entered");
// bpf_printk("multi constant support");
// return 0;
// }
// Handler for syscall exit
SEC("tracepoint/syscalls/sys_exit_execve")
long hello_again(void *ctx) {
bpf_printk("exited");
// // Handler for syscall exit
// SEC("tracepoint/syscalls/sys_exit_execve")
// long hello_again(void *ctx) {
// bpf_printk("exited");
// Create a key for map lookup
u64 key = 0;
// // Create a key for map lookup
// u64 key = 0;
// Simple lookup without conditionals
u64 *tsp = bpf_map_lookup_elem(&last, &key);
// // Simple lookup without conditionals
// u64 *tsp = bpf_map_lookup_elem(&last, &key);
// Get current timestamp
u64 ts = bpf_ktime_get_ns();
// // Get current timestamp
// u64 ts = bpf_ktime_get_ns();
return 0;
}
// return 0;
// }
char LICENSE[] SEC("license") = "GPL";