diff options
Diffstat (limited to 'lib/libc/mips/sys/ptrace.S')
| -rw-r--r-- | lib/libc/mips/sys/ptrace.S | 53 |
1 files changed, 26 insertions, 27 deletions
diff --git a/lib/libc/mips/sys/ptrace.S b/lib/libc/mips/sys/ptrace.S index 09b82c5255f9..8cf984a9c727 100644 --- a/lib/libc/mips/sys/ptrace.S +++ b/lib/libc/mips/sys/ptrace.S @@ -41,32 +41,31 @@ __FBSDID("$FreeBSD$"); ASMSTR("$NetBSD: ptrace.S,v 1.9 2003/08/07 16:42:17 agc Exp $") #endif /* LIBC_SCCS and not lint */ -LEAF(ptrace) - .frame sp, 40, ra - .mask 0x80000000, -8 -#ifdef __ABICALLS__ - .set noreorder - .cpload t9 - .set reorder -#endif - subu sp, sp, 40 - sw ra, 32(sp) -#ifdef __ABICALLS__ - .cprestore 16 -#endif - la t9, _C_LABEL(__error) # locate address of errno - jalr t9 -#ifdef __ABICALLS__ - lw gp, 16(sp) -#endif - sw zero, 0(v0) - lw ra, 32(sp) - addu sp, sp, 40 - li v0, SYS_ptrace +NESTED_NOPROFILE(ptrace, CALLFRAME_SIZ, ra) + .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) + SETUP_GP + PTR_SUBU sp, sp, CALLFRAME_SIZ + SETUP_GP64(CALLFRAME_GP, ptrace) + SAVE_GP(CALLFRAME_GP) + + PTR_S ra, CALLFRAME_RA(sp) + + PTR_LA t9, _C_LABEL(__error) # locate address of errno + jalr t9 + + PTR_L ra, CALLFRAME_RA(sp) + INT_S zero, 0(v0) # update errno value + + li v0, SYS_ptrace syscall - bne a3, zero, 1f - j ra -1: - la t9, _C_LABEL(__cerror) - jr t9 + + # Load __cerror's address using our gp, then restore it. + PTR_LA t9, __cerror + RESTORE_GP64 + PTR_ADDU sp, sp, CALLFRAME_SIZ + + bne a3, zero, 1f + + j ra +1: j t9 END(ptrace) |