0x100000 | new) < 0)
return -1;
return 0;
+#elif defined(ARM)
+ /* Some kernels support this, some (pre-2.6.16 or so) don't. */
+# ifndef PTRACE_SET_SYSCALL
+# define PTRACE_SET_SYSCALL 23
+# endif
+
+ if (ptrace (PTRACE_SET_SYSCALL, tcp->pid, 0, new) != 0)
+ return -1;
+
+ return 0;
#else
#warning Do not know how to handle change_syscall for this architecture
#endif /* architecture */
return 0;
}
- if ((scno & 0x0ff00000) != 0x0f900000) {
- fprintf(stderr, "syscall: unknown syscall trap 0x%08lx\n",
- scno);
- return -1;
- }
+ /* Handle the EABI syscall convention. We do not
+ bother converting structures between the two
+ ABIs, but basic functionality should work even
+ if strace and the traced program have different
+ ABIs. */
+ if (scno == 0xef000000) {
+ scno = regs.ARM_r7;
+ } else {
+ if ((scno & 0x0ff00000) != 0x0f900000) {
+ fprintf(stderr, "syscall: unknown syscall trap 0x%08lx\n",
+ scno);
+ return -1;
+ }
- /*
- * Fixup the syscall number
- */
- scno &= 0x000fffff;
+ /*
+ * Fixup the syscall number
+ */
+ scno &= 0x000fffff;
+ }
}
if (tcp->flags & TCB_INSYSCALL) {