diff options
| -rw-r--r-- | linux/sparc/get_scno.c | 49 |
1 files changed, 4 insertions, 45 deletions
diff --git a/linux/sparc/get_scno.c b/linux/sparc/get_scno.c index d083bf47..cde44441 100644 --- a/linux/sparc/get_scno.c +++ b/linux/sparc/get_scno.c @@ -1,20 +1,11 @@ -/* Disassemble the syscall trap. */ +#ifdef SPARC64 /* Retrieve the syscall trap instruction. */ unsigned long trap; - errno = 0; - -#ifdef SPARC64 trap = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)sparc_regs.tpc, 0); -trap >>= 32; -#else -trap = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)sparc_regs.pc, 0); -#endif - if (errno) return -1; - -/* Disassemble the trap to see what personality to use. */ +trap >>= 32; switch (trap) { case 0x91d02010: /* Linux/SPARC syscall trap. */ @@ -24,39 +15,7 @@ case 0x91d0206d: /* Linux/SPARC64 syscall trap. */ update_personality(tcp, 2); break; -case 0x91d02000: - /* SunOS syscall trap. (pers 1) */ - fprintf(stderr, "syscall: SunOS no support\n"); - return -1; -case 0x91d02008: - /* Solaris 2.x syscall trap. (per 2) */ - update_personality(tcp, 1); - break; -case 0x91d02009: - /* NetBSD/FreeBSD syscall trap. */ - fprintf(stderr, "syscall: NetBSD/FreeBSD not supported\n"); - return -1; -case 0x91d02027: - /* Solaris 2.x gettimeofday */ - update_personality(tcp, 1); - break; -default: -#ifdef SPARC64 - fprintf(stderr, "syscall: unknown syscall trap %08lx %016lx\n", trap, sparc_regs.tpc); -#else - fprintf(stderr, "syscall: unknown syscall trap %08lx %08lx\n", trap, sparc_regs.pc); -#endif - return -1; -} - -/* Extract the system call number from the registers. */ -if (trap == 0x91d02027) { - scno = 156; -} else { - scno = sparc_regs.u_regs[U_REG_G1]; } +#endif -if (scno == 0) { - scno = sparc_regs.u_regs[U_REG_O0]; - memmove(&sparc_regs.u_regs[U_REG_O0], &sparc_regs.u_regs[U_REG_O1], 7*sizeof(sparc_regs.u_regs[0])); -} +scno = sparc_regs.u_regs[U_REG_G1]; |