OS-4830 lxbrand convert select/poll to IKE

Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>

usr/src/common/brand/lx/lx_signum.h

@@ -79,6 +79,34 @@ extern int lx_ltos_signo(int, int);
 extern int lx_stol_status(int, int);
 extern int lx_stol_sigcode(int);
 
+/*
+ * NOTE:  Linux uses different definitions for 'sigset_t's and 'sigaction_t's
+ *	  depending on whether the definition is for user space or the kernel.
+ *
+ *	  The definitions below MUST correspond to the Linux kernel versions,
+ *	  as glibc will do the necessary translation from the Linux user
+ *	  versions.
+ */
+#if defined(_LP64)
+#define	LX_NSIG_WORDS	1
+#define	LX_WSHIFT	6
+#elif defined(_ILP32)
+#define	LX_NSIG_WORDS	2
+#define	LX_WSHIFT	5
+#else
+#error "LX only supports LP64 and ILP32"
+#endif
+
+typedef struct {
+	ulong_t	__bits[LX_NSIG_WORDS];
+} lx_sigset_t;
+
+#define	LX_NBITS		(sizeof (ulong_t) * NBBY)
+#define	lx_sigmask(n)		(1UL << (((n) - 1) % LX_NBITS))
+#define	lx_sigword(n)		(((ulong_t)((n) - 1)) >> LX_WSHIFT)
+#define	lx_sigismember(s, n)	(lx_sigmask(n) & (s)->__bits[lx_sigword(n)])
+#define	lx_sigaddset(s, n)	((s)->__bits[lx_sigword(n)] |= lx_sigmask(n))
+
 #ifdef	__cplusplus
 }
 #endif

usr/src/lib/brand/lx/lx_brand/Makefile.com

@@ -46,7 +46,6 @@ COBJS	=	aio.o			\
 		mount.o			\
 		mount_nfs.o		\
 		pgrp.o			\
-		poll_select.o		\
 		priority.o		\
 		ptrace.o		\
 		sched.o			\

usr/src/lib/brand/lx/lx_brand/common/lx_brand.c

@@ -947,7 +947,7 @@ static lx_syscall_handler_t lx_handlers[] = {
 	lx_stat64,			/*   4: stat */
 	lx_fstat64,			/*   5: fstat */
 	lx_lstat64,			/*   6: lstat */
-	lx_poll,			/*   7: poll */
+	NULL,				/*   7: poll */
 	lx_lseek,			/*   8: lseek */
 	lx_mmap,			/*   9: mmap */
 	lx_mprotect,			/*  10: mprotect */
@@ -963,7 +963,7 @@ static lx_syscall_handler_t lx_handlers[] = {
 	NULL,				/*  20: writev */
 	lx_access,			/*  21: access */
 	NULL,				/*  22: pipe */
-	lx_select,			/*  23: select */
+	NULL,				/*  23: select */
 	NULL,				/*  24: sched_yield */
 	lx_remap,			/*  25: mremap */
 	lx_msync,			/*  26: msync */
@@ -1210,8 +1210,8 @@ static lx_syscall_handler_t lx_handlers[] = {
 	lx_readlinkat,			/* 267: readlinkat */
 	NULL,				/* 268: fchmodat */
 	lx_faccessat,			/* 269: faccessat */
-	lx_pselect6,			/* 270: pselect6 */
-	lx_ppoll,			/* 271: ppoll */
+	NULL,				/* 270: pselect6 */
+	NULL,				/* 271: ppoll */
 	NULL,				/* 272: unshare */
 	NULL,				/* 273: set_robust_list */
 	NULL,				/* 274: get_robust_list */
@@ -1413,7 +1413,7 @@ static lx_syscall_handler_t lx_handlers[] = {
 	lx_setfsgid16,			/* 139: setfsgid16 */
 	lx_llseek,			/* 140: llseek */
 	NULL,				/* 141: getdents */
-	lx_select,			/* 142: select */
+	NULL,				/* 142: select */
 	lx_flock,			/* 143: flock */
 	lx_msync,			/* 144: msync */
 	NULL,				/* 145: readv */
@@ -1439,7 +1439,7 @@ static lx_syscall_handler_t lx_handlers[] = {
 	lx_getresuid16,			/* 165: getresuid16 */
 	NULL,				/* 166: vm86 */
 	lx_query_module,		/* 167: query_module */
-	lx_poll,			/* 168: poll */
+	NULL,				/* 168: poll */
 	NULL,				/* 169: nfsservctl */
 	NULL,				/* 170: setresgid16 */
 	lx_getresgid16,			/* 171: getresgid16 */
@@ -1579,8 +1579,8 @@ static lx_syscall_handler_t lx_handlers[] = {
 	lx_readlinkat,			/* 305: readlinkat */
 	NULL,				/* 306: fchmodat */
 	lx_faccessat,			/* 307: faccessat */
-	lx_pselect6,			/* 308: pselect6 */
-	lx_ppoll,			/* 309: ppoll */
+	NULL,				/* 308: pselect6 */
+	NULL,				/* 309: ppoll */
 	NULL,				/* 310: unshare */
 	NULL,				/* 311: set_robust_list */
 	NULL,				/* 312: get_robust_list */