svn commit: r185169 - in head/sys: amd64/amd64 amd64/linux32
arm/arm compat/ia32 compat/svr4 i386/i386 i386/ibcs2
i386/linux ia64/ia64 kern mips/mips powerpc/powerpc
sparc64/sparc64 sys
Konstantin Belousov
kib at FreeBSD.org
Sat Nov 22 04:36:16 PST 2008
Author: kib
Date: Sat Nov 22 12:36:15 2008
New Revision: 185169
URL: http://svn.freebsd.org/changeset/base/185169
Log:
Add sv_flags field to struct sysentvec with intention to provide description
of the ABI of the currently executing image. Change some places to test
the flags instead of explicit comparing with address of known sysentvec
structures to determine ABI features.
Discussed with: dchagin, imp, jhb, peter
Modified:
head/sys/amd64/amd64/elf_machdep.c
head/sys/amd64/linux32/linux32_sysvec.c
head/sys/arm/arm/elf_machdep.c
head/sys/compat/ia32/ia32_sysvec.c
head/sys/compat/svr4/svr4_sysvec.c
head/sys/i386/i386/elf_machdep.c
head/sys/i386/ibcs2/ibcs2_sysvec.c
head/sys/i386/linux/linux_sysvec.c
head/sys/ia64/ia64/elf_machdep.c
head/sys/kern/imgact_aout.c
head/sys/kern/kern_thr.c
head/sys/kern/uipc_socket.c
head/sys/mips/mips/elf_machdep.c
head/sys/powerpc/powerpc/elf_machdep.c
head/sys/sparc64/sparc64/elf_machdep.c
head/sys/sys/sysent.h
Modified: head/sys/amd64/amd64/elf_machdep.c
==============================================================================
--- head/sys/amd64/amd64/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/amd64/amd64/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -72,7 +72,8 @@ struct sysentvec elf64_freebsd_sysvec =
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_LP64
};
static Elf64_Brandinfo freebsd_brand_info = {
Modified: head/sys/amd64/linux32/linux32_sysvec.c
==============================================================================
--- head/sys/amd64/linux32/linux32_sysvec.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/amd64/linux32/linux32_sysvec.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -1026,6 +1026,7 @@ struct sysentvec elf_linux_sysvec = {
.sv_setregs = exec_linux_setregs,
.sv_fixlimit = linux32_fixlimit,
.sv_maxssiz = &linux32_maxssiz,
+ .sv_flags = SV_ABI_LINUX | SV_ILP32 | SV_IA32
};
static Elf32_Brandinfo linux_brand = {
Modified: head/sys/arm/arm/elf_machdep.c
==============================================================================
--- head/sys/arm/arm/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/arm/arm/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -72,7 +72,8 @@ struct sysentvec elf32_freebsd_sysvec =
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_ILP32
};
static Elf32_Brandinfo freebsd_brand_info = {
Modified: head/sys/compat/ia32/ia32_sysvec.c
==============================================================================
--- head/sys/compat/ia32/ia32_sysvec.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/compat/ia32/ia32_sysvec.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -135,7 +135,8 @@ struct sysentvec ia32_freebsd_sysvec = {
.sv_copyout_strings = ia32_copyout_strings,
.sv_setregs = ia32_setregs,
.sv_fixlimit = ia32_fixlimit,
- .sv_maxssiz = &ia32_maxssiz
+ .sv_maxssiz = &ia32_maxssiz,
+ .sv_flags = SV_ABI_FREEBSD | SV_IA32 | SV_ILP32
};
Modified: head/sys/compat/svr4/svr4_sysvec.c
==============================================================================
--- head/sys/compat/svr4/svr4_sysvec.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/compat/svr4/svr4_sysvec.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -190,7 +190,8 @@ struct sysentvec svr4_sysvec = {
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_UNDEF | SV_IA32 | SV_ILP32
};
const char svr4_emul_path[] = "/compat/svr4";
Modified: head/sys/i386/i386/elf_machdep.c
==============================================================================
--- head/sys/i386/i386/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/i386/i386/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -72,7 +72,8 @@ struct sysentvec elf32_freebsd_sysvec =
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_IA32 | SV_ILP32
};
static Elf32_Brandinfo freebsd_brand_info = {
Modified: head/sys/i386/ibcs2/ibcs2_sysvec.c
==============================================================================
--- head/sys/i386/ibcs2/ibcs2_sysvec.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/i386/ibcs2/ibcs2_sysvec.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -85,7 +85,8 @@ struct sysentvec ibcs2_svr3_sysvec = {
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_UNDEF | SV_IA32 | SV_ILP32
};
static int
Modified: head/sys/i386/linux/linux_sysvec.c
==============================================================================
--- head/sys/i386/linux/linux_sysvec.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/i386/linux/linux_sysvec.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -837,7 +837,8 @@ struct sysentvec linux_sysvec = {
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_linux_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_LINUX | SV_AOUT | SV_IA32 | SV_ILP32
};
struct sysentvec elf_linux_sysvec = {
@@ -867,7 +868,8 @@ struct sysentvec elf_linux_sysvec = {
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_linux_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_LINUX | SV_IA32 | SV_ILP32
};
static Elf32_Brandinfo linux_brand = {
Modified: head/sys/ia64/ia64/elf_machdep.c
==============================================================================
--- head/sys/ia64/ia64/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/ia64/ia64/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -80,7 +80,8 @@ struct sysentvec elf64_freebsd_sysvec =
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_LP64
};
static Elf64_Brandinfo freebsd_brand_info = {
Modified: head/sys/kern/imgact_aout.c
==============================================================================
--- head/sys/kern/imgact_aout.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/kern/imgact_aout.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -82,7 +82,13 @@ struct sysentvec aout_sysvec = {
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_AOUT |
+#if defined(__i386__)
+ SV_IA32 | SV_ILP32
+#else
+#error Choose SV_XXX flags for the platform
+#endif
};
static int
Modified: head/sys/kern/kern_thr.c
==============================================================================
--- head/sys/kern/kern_thr.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/kern/kern_thr.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -57,14 +57,12 @@ __FBSDID("$FreeBSD$");
#ifdef COMPAT_IA32
-extern struct sysentvec ia32_freebsd_sysvec;
-
static inline int
suword_lwpid(void *addr, lwpid_t lwpid)
{
int error;
- if (curproc->p_sysent != &ia32_freebsd_sysvec)
+ if (SV_CURPROC_FLAG(SV_LP64))
error = suword(addr, lwpid);
else
error = suword32(addr, lwpid);
Modified: head/sys/kern/uipc_socket.c
==============================================================================
--- head/sys/kern/uipc_socket.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/kern/uipc_socket.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -136,9 +136,8 @@ __FBSDID("$FreeBSD$");
#ifdef COMPAT_IA32
#include <sys/mount.h>
+#include <sys/sysent.h>
#include <compat/freebsd32/freebsd32.h>
-
-extern struct sysentvec ia32_freebsd_sysvec;
#endif
static int soreceive_rcvoob(struct socket *so, struct uio *uio,
@@ -2280,7 +2279,7 @@ sosetopt(struct socket *so, struct socko
case SO_SNDTIMEO:
case SO_RCVTIMEO:
#ifdef COMPAT_IA32
- if (curthread->td_proc->p_sysent == &ia32_freebsd_sysvec) {
+ if (SV_CURPROC_FLAG(SV_ILP32)) {
struct timeval32 tv32;
error = sooptcopyin(sopt, &tv32, sizeof tv32,
@@ -2461,7 +2460,7 @@ integer:
tv.tv_sec = optval / hz;
tv.tv_usec = (optval % hz) * tick;
#ifdef COMPAT_IA32
- if (curthread->td_proc->p_sysent == &ia32_freebsd_sysvec) {
+ if (SV_CURPROC_FLAG(SV_ILP32)) {
struct timeval32 tv32;
CP(tv, tv32, tv_sec);
Modified: head/sys/mips/mips/elf_machdep.c
==============================================================================
--- head/sys/mips/mips/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/mips/mips/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -74,7 +74,8 @@ struct sysentvec elf32_freebsd_sysvec =
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_ILP32
};
static Elf32_Brandinfo freebsd_brand_info = {
Modified: head/sys/powerpc/powerpc/elf_machdep.c
==============================================================================
--- head/sys/powerpc/powerpc/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/powerpc/powerpc/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -75,7 +75,8 @@ struct sysentvec elf32_freebsd_sysvec =
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_ILP32
};
static Elf32_Brandinfo freebsd_brand_info = {
Modified: head/sys/sparc64/sparc64/elf_machdep.c
==============================================================================
--- head/sys/sparc64/sparc64/elf_machdep.c Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/sparc64/sparc64/elf_machdep.c Sat Nov 22 12:36:15 2008 (r185169)
@@ -87,7 +87,8 @@ static struct sysentvec elf64_freebsd_sy
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
- .sv_maxssiz = NULL
+ .sv_maxssiz = NULL,
+ .sv_flags = SV_ABI_FREEBSD | SV_LP64
};
static Elf64_Brandinfo freebsd_brand_info = {
Modified: head/sys/sys/sysent.h
==============================================================================
--- head/sys/sys/sysent.h Sat Nov 22 12:34:49 2008 (r185168)
+++ head/sys/sys/sysent.h Sat Nov 22 12:36:15 2008 (r185169)
@@ -100,8 +100,22 @@ struct sysentvec {
void (*sv_setregs)(struct thread *, u_long, u_long, u_long);
void (*sv_fixlimit)(struct rlimit *, int);
u_long *sv_maxssiz;
+ u_int sv_flags;
};
+#define SV_ILP32 0x000100
+#define SV_LP64 0x000200
+#define SV_IA32 0x004000
+#define SV_AOUT 0x008000
+
+#define SV_ABI_MASK 0xff
+#define SV_CURPROC_FLAG(x) (curproc->p_sysent->sv_flags & (x))
+#define SV_CURPROC_ABI() (curproc->p_sysent->sv_flags & SV_ABI_MASK)
+/* same as ELFOSABI_XXX, to prevent header pollution */
+#define SV_ABI_LINUX 3
+#define SV_ABI_FREEBSD 9
+#define SV_ABI_UNDEF 255
+
#ifdef _KERNEL
extern struct sysentvec aout_sysvec;
extern struct sysentvec elf_freebsd_sysvec;
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