sparc/linux: Rewrite to use asm/ptrace.h

The current sparc/linux code uses asm/reg.h, but recent Linux kernels
dropped that header completely.  So switch over to the ptrace headers
as those should stick around indefinitely as part of the ABI.

* defs.h [LINUXSPARC] (U_REG_G1, U_REG_O0, U_REG_O1): Define.
* process.c: Drop asm/regs.h include.
[SPARC || SPARC64] (change_syscall): Change struct regs to struct pt_regs.
* signal.c: Drop asm/regs.h include.
(m_siginfo_t): Unify [SPARC || SPARC64] and [MIPS].
[SPARC || SPARC64] (sys_sigreturn): Change struct regs to struct pt_regs.
* syscall.c: Drop asm/regs.h include.
[SPARC || SPARC64] (internal_syscall, get_scno, get_error, force_result,
syscall_enter): Change struct regs to struct pt_regs.
* util.c: Drop asm/regs.h include.
(_hack_syscall5, _ptrace): Delete.
[SPARC || SPARC64] (getpc, printcall, arg_setup_state): Change
struct regs to struct pt_regs.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 2 insertions, 16 deletions

diff --git a/process.c b/process.c
index 5d956b0..551e1bb 100644
--- a/process.c
+++ b/process.c
@@ -56,20 +56,6 @@
 #include <sys/ptrace.h>
 #endif
 
-#if HAVE_ASM_REG_H
-#if defined (SPARC) || defined (SPARC64)
-#  define fpq kernel_fpq
-#  define fq kernel_fq
-#  define fpu kernel_fpu
-#endif /* SPARC || SPARC64 */
-#include <asm/reg.h>
-#if defined (SPARC) || defined (SPARC64)
-#  undef fpq
-#  undef fq
-#  undef fpu
-#endif /* SPARC || SPARC64 */
-#endif /* HAVE_ASM_REG_H */
-
 #ifdef HAVE_SYS_REG_H
 # include <sys/reg.h>
 #ifndef PTRACE_PEEKUSR
@@ -726,10 +712,10 @@ change_syscall(struct tcb *tcp, int new)
 		return -1;
 	return 0;
 #elif defined(SPARC) || defined(SPARC64)
-	struct regs regs;
+	struct pt_regs regs;
 	if (ptrace(PTRACE_GETREGS, tcp->pid, (char*)&regs, 0)<0)
 		return -1;
-	regs.r_g1=new;
+	regs.u_regs[U_REG_G1] = new;
 	if (ptrace(PTRACE_SETREGS, tcp->pid, (char*)&regs, 0)<0)
 		return -1;
 	return 0;