From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/linux/ptrace.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 src/linux/ptrace.c (limited to 'src/linux/ptrace.c') diff --git a/src/linux/ptrace.c b/src/linux/ptrace.c new file mode 100644 index 0000000..a3f393d --- /dev/null +++ b/src/linux/ptrace.c @@ -0,0 +1,29 @@ +#include +#include +#include +#include "syscall.h" + +long ptrace(int req, ...) +{ + va_list ap; + pid_t pid; + void *addr, *data, *addr2 = 0; + long ret, result; + + va_start(ap, req); + pid = va_arg(ap, pid_t); + addr = va_arg(ap, void *); + data = va_arg(ap, void *); + /* PTRACE_{READ,WRITE}{DATA,TEXT} (16...19) are specific to SPARC. */ +#ifdef PTRACE_READDATA + if ((unsigned)req - PTRACE_READDATA < 4) + addr2 = va_arg(ap, void *); +#endif + va_end(ap); + + if (req-1U < 3) data = &result; + ret = syscall(SYS_ptrace, req, pid, addr, data, addr2); + + if (ret < 0 || req-1U >= 3) return ret; + return result; +} -- cgit v1.2.3