git: ee61a8204380 - stable/13 - linux(4): Deduplicate linux_copyout_strings().
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Date: Thu, 09 Feb 2023 07:56:45 UTC
The branch stable/13 has been updated by dchagin:
URL: https://cgit.FreeBSD.org/src/commit/?id=ee61a8204380979fb32a06d35d707211682fafa1
commit ee61a8204380979fb32a06d35d707211682fafa1
Author: Dmitry Chagin <dchagin@FreeBSD.org>
AuthorDate: 2023-02-02 14:58:07 +0000
Commit: Dmitry Chagin <dchagin@FreeBSD.org>
CommitDate: 2023-02-09 07:55:23 +0000
linux(4): Deduplicate linux_copyout_strings().
It is still present in the 32-bit Linuxulator on amd64.
MFC after: 1 week
(cherry picked from commit 6039e966ff276ff6bcb57f2f70e7d8ff376b24fd)
---
sys/amd64/linux/linux_sysvec.c | 130 +---------------------------------
sys/arm64/linux/linux_sysvec.c | 143 +-------------------------------------
sys/compat/linux/linux_elf.c | 153 +++++++++++++++++++++++++++++++++++++++++
sys/compat/linux/linux_elf.h | 1 +
sys/i386/linux/linux_sysvec.c | 122 +-------------------------------
5 files changed, 158 insertions(+), 391 deletions(-)
diff --git a/sys/amd64/linux/linux_sysvec.c b/sys/amd64/linux/linux_sysvec.c
index 211bd1533933..45d940a42b51 100644
--- a/sys/amd64/linux/linux_sysvec.c
+++ b/sys/amd64/linux/linux_sysvec.c
@@ -115,8 +115,6 @@ extern const char *linux_syscallnames[];
SET_DECLARE(linux_ioctl_handler_set, struct linux_ioctl_handler);
-static int linux_copyout_strings(struct image_params *imgp,
- uintptr_t *stack_base);
static bool linux_trans_osrel(const Elf_Note *note, int32_t *osrel);
static void linux_vdso_install(const void *param);
static void linux_vdso_deinstall(const void *param);
@@ -267,132 +265,6 @@ linux_copyout_auxargs(struct image_params *imgp, uintptr_t base)
return (error);
}
-/*
- * Copy strings out to the new process address space, constructing new arg
- * and env vector tables. Return a pointer to the base so that it can be used
- * as the initial stack pointer.
- */
-static int
-linux_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
-{
- int argc, envc, error;
- char **vectp;
- char *stringp;
- uintptr_t destp, ustringp;
- struct ps_strings *arginfo;
- char canary[LINUX_AT_RANDOM_LEN];
- size_t execpath_len;
- struct proc *p;
-
- p = imgp->proc;
- arginfo = (struct ps_strings *)PROC_PS_STRINGS(p);
- destp = (uintptr_t)arginfo;
-
- if (imgp->execpath != NULL && imgp->auxargs != NULL) {
- execpath_len = strlen(imgp->execpath) + 1;
- destp -= execpath_len;
- destp = rounddown2(destp, sizeof(void *));
- imgp->execpathp = (void *)destp;
- error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
- if (error != 0)
- return (error);
- }
-
- /* Prepare the canary for SSP. */
- arc4rand(canary, sizeof(canary), 0);
- destp -= roundup(sizeof(canary), sizeof(void *));
- imgp->canary = (void *)destp;
- error = copyout(canary, imgp->canary, sizeof(canary));
- if (error != 0)
- return (error);
-
- /* Allocate room for the argument and environment strings. */
- destp -= ARG_MAX - imgp->args->stringspace;
- destp = rounddown2(destp, sizeof(void *));
- ustringp = destp;
-
- if (imgp->auxargs) {
- /*
- * Allocate room on the stack for the ELF auxargs
- * array. It has LINUX_AT_COUNT entries.
- */
- destp -= LINUX_AT_COUNT * sizeof(Elf64_Auxinfo);
- destp = rounddown2(destp, sizeof(void *));
- }
-
- vectp = (char **)destp;
-
- /*
- * Allocate room for the argv[] and env vectors including the
- * terminating NULL pointers.
- */
- vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
-
- /*
- * Starting with 2.24, glibc depends on a 16-byte stack alignment.
- * One "long argc" will be prepended later.
- */
- vectp = (char **)((((uintptr_t)vectp + 8) & ~0xF) - 8);
-
- /* vectp also becomes our initial stack base. */
- *stack_base = (uintptr_t)vectp;
-
- stringp = imgp->args->begin_argv;
- argc = imgp->args->argc;
- envc = imgp->args->envc;
-
- /* Copy out strings - arguments and environment. */
- error = copyout(stringp, (void *)ustringp,
- ARG_MAX - imgp->args->stringspace);
- if (error != 0)
- return (error);
-
- /* Fill in "ps_strings" struct for ps, w, etc. */
- if (suword(&arginfo->ps_argvstr, (long)(intptr_t)vectp) != 0 ||
- suword(&arginfo->ps_nargvstr, argc) != 0)
- return (EFAULT);
-
- /* Fill in argument portion of vector table. */
- for (; argc > 0; --argc) {
- if (suword(vectp++, ustringp) != 0)
- return (EFAULT);
- while (*stringp++ != 0)
- ustringp++;
- ustringp++;
- }
-
- /* A null vector table pointer separates the argp's from the envp's. */
- if (suword(vectp++, 0) != 0)
- return (EFAULT);
-
- if (suword(&arginfo->ps_envstr, (long)(intptr_t)vectp) != 0 ||
- suword(&arginfo->ps_nenvstr, envc) != 0)
- return (EFAULT);
-
- /* Fill in environment portion of vector table. */
- for (; envc > 0; --envc) {
- if (suword(vectp++, ustringp) != 0)
- return (EFAULT);
- while (*stringp++ != 0)
- ustringp++;
- ustringp++;
- }
-
- /* The end of the vector table is a null pointer. */
- if (suword(vectp, 0) != 0)
- return (EFAULT);
-
- if (imgp->auxargs) {
- vectp++;
- error = imgp->sysent->sv_copyout_auxargs(imgp,
- (uintptr_t)vectp);
- if (error != 0)
- return (error);
- }
-
- return (0);
-}
-
/*
* Reset registers to default values on exec.
*/
@@ -706,7 +578,7 @@ struct sysentvec elf_linux_sysvec = {
.sv_psstringssz = sizeof(struct ps_strings),
.sv_stackprot = VM_PROT_ALL,
.sv_copyout_auxargs = linux_copyout_auxargs,
- .sv_copyout_strings = linux_copyout_strings,
+ .sv_copyout_strings = __linuxN(copyout_strings),
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
diff --git a/sys/arm64/linux/linux_sysvec.c b/sys/arm64/linux/linux_sysvec.c
index bc9b0de9b095..7bf0dbca6eda 100644
--- a/sys/arm64/linux/linux_sysvec.c
+++ b/sys/arm64/linux/linux_sysvec.c
@@ -105,10 +105,6 @@ extern const char *linux_syscallnames[];
SET_DECLARE(linux_ioctl_handler_set, struct linux_ioctl_handler);
-static int linux_copyout_strings(struct image_params *imgp,
- uintptr_t *stack_base);
-static int linux_elf_fixup(uintptr_t *stack_base,
- struct image_params *iparams);
static bool linux_trans_osrel(const Elf_Note *note, int32_t *osrel);
static void linux_vdso_install(const void *param);
static void linux_vdso_deinstall(const void *param);
@@ -127,7 +123,6 @@ LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
/* DTrace probes */
LIN_SDT_PROBE_DEFINE0(sysvec, linux_exec_setregs, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_copyout_auxargs, todo);
-LIN_SDT_PROBE_DEFINE0(sysvec, linux_elf_fixup, todo);
LINUX_VDSO_SYM_CHAR(linux_platform);
LINUX_VDSO_SYM_INTPTR(kern_timekeep_base);
@@ -223,140 +218,6 @@ linux_copyout_auxargs(struct image_params *imgp, uintptr_t base)
return (error);
}
-static int
-linux_elf_fixup(uintptr_t *stack_base, struct image_params *imgp)
-{
-
- LIN_SDT_PROBE0(sysvec, linux_elf_fixup, todo);
-
- return (0);
-}
-
-/*
- * Copy strings out to the new process address space, constructing new arg
- * and env vector tables. Return a pointer to the base so that it can be used
- * as the initial stack pointer.
- * LINUXTODO: deduplicate against other linuxulator archs
- */
-static int
-linux_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
-{
- char **vectp;
- char *stringp;
- uintptr_t destp, ustringp;
- struct ps_strings *arginfo;
- char canary[LINUX_AT_RANDOM_LEN];
- size_t execpath_len;
- struct proc *p;
- int argc, envc, error;
-
- p = imgp->proc;
- arginfo = (struct ps_strings *)PROC_PS_STRINGS(p);
- destp = (uintptr_t)arginfo;
-
- if (imgp->execpath != NULL && imgp->auxargs != NULL) {
- execpath_len = strlen(imgp->execpath) + 1;
- destp -= execpath_len;
- destp = rounddown2(destp, sizeof(void *));
- imgp->execpathp = (void *)destp;
- error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
- if (error != 0)
- return (error);
- }
-
- /* Prepare the canary for SSP. */
- arc4rand(canary, sizeof(canary), 0);
- destp -= roundup(sizeof(canary), sizeof(void *));
- imgp->canary = (void *)destp;
- error = copyout(canary, imgp->canary, sizeof(canary));
- if (error != 0)
- return (error);
-
- /* Allocate room for the argument and environment strings. */
- destp -= ARG_MAX - imgp->args->stringspace;
- destp = rounddown2(destp, sizeof(void *));
- ustringp = destp;
-
- if (imgp->auxargs) {
- /*
- * Allocate room on the stack for the ELF auxargs
- * array. It has up to LINUX_AT_COUNT entries.
- */
- destp -= LINUX_AT_COUNT * sizeof(Elf64_Auxinfo);
- destp = rounddown2(destp, sizeof(void *));
- }
-
- vectp = (char **)destp;
-
- /*
- * Allocate room for argc and the argv[] and env vectors including the
- * terminating NULL pointers.
- */
- vectp -= 1 + imgp->args->argc + 1 + imgp->args->envc + 1;
- vectp = (char **)STACKALIGN(vectp);
-
- /* vectp also becomes our initial stack base. */
- *stack_base = (uintptr_t)vectp;
-
- stringp = imgp->args->begin_argv;
- argc = imgp->args->argc;
- envc = imgp->args->envc;
-
- /* Copy out strings - arguments and environment. */
- error = copyout(stringp, (void *)ustringp,
- ARG_MAX - imgp->args->stringspace);
- if (error != 0)
- return (error);
-
- /* Fill in "ps_strings" struct for ps, w, etc. */
- if (suword(&arginfo->ps_argvstr, (long)(intptr_t)vectp) != 0 ||
- suword(&arginfo->ps_nargvstr, argc) != 0)
- return (EFAULT);
-
- if (suword(vectp++, argc) != 0)
- return (EFAULT);
-
- /* Fill in argument portion of vector table. */
- for (; argc > 0; --argc) {
- if (suword(vectp++, ustringp) != 0)
- return (EFAULT);
- while (*stringp++ != 0)
- ustringp++;
- ustringp++;
- }
-
- /* A null vector table pointer separates the argp's from the envp's. */
- if (suword(vectp++, 0) != 0)
- return (EFAULT);
-
- if (suword(&arginfo->ps_envstr, (long)(intptr_t)vectp) != 0 ||
- suword(&arginfo->ps_nenvstr, envc) != 0)
- return (EFAULT);
-
- /* Fill in environment portion of vector table. */
- for (; envc > 0; --envc) {
- if (suword(vectp++, ustringp) != 0)
- return (EFAULT);
- while (*stringp++ != 0)
- ustringp++;
- ustringp++;
- }
-
- /* The end of the vector table is a null pointer. */
- if (suword(vectp, 0) != 0)
- return (EFAULT);
-
- if (imgp->auxargs) {
- vectp++;
- error = imgp->sysent->sv_copyout_auxargs(imgp,
- (uintptr_t)vectp);
- if (error != 0)
- return (error);
- }
-
- return (0);
-}
-
/*
* Reset registers to default values on exec.
*/
@@ -552,7 +413,7 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
struct sysentvec elf_linux_sysvec = {
.sv_size = LINUX_SYS_MAXSYSCALL,
.sv_table = linux_sysent,
- .sv_fixup = linux_elf_fixup,
+ .sv_fixup = __elfN(freebsd_fixup),
.sv_sendsig = linux_rt_sendsig,
.sv_sigcode = &_binary_linux_vdso_so_o_start,
.sv_szsigcode = &linux_szsigcode,
@@ -570,7 +431,7 @@ struct sysentvec elf_linux_sysvec = {
.sv_psstringssz = sizeof(struct ps_strings),
.sv_stackprot = VM_PROT_READ | VM_PROT_WRITE,
.sv_copyout_auxargs = linux_copyout_auxargs,
- .sv_copyout_strings = linux_copyout_strings,
+ .sv_copyout_strings = __linuxN(copyout_strings),
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
diff --git a/sys/compat/linux/linux_elf.c b/sys/compat/linux/linux_elf.c
index 1da919f02a81..3e0582e2b8c3 100644
--- a/sys/compat/linux/linux_elf.c
+++ b/sys/compat/linux/linux_elf.c
@@ -41,6 +41,7 @@
__FBSDID("$FreeBSD$");
#include <sys/param.h>
+#include <sys/exec.h>
#include <sys/imgact.h>
#include <sys/imgact_elf.h>
#include <sys/lock.h>
@@ -50,6 +51,11 @@ __FBSDID("$FreeBSD$");
#include <sys/procfs.h>
#include <sys/reg.h>
#include <sys/sbuf.h>
+#include <sys/sysent.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <vm/vm_map.h>
#include <machine/elf.h>
@@ -61,6 +67,7 @@ __FBSDID("$FreeBSD$");
#include <machine/../linux/linux.h>
#endif
#include <compat/linux/linux_elf.h>
+#include <compat/linux/linux_misc.h>
struct l_elf_siginfo {
l_int si_signo;
@@ -312,3 +319,149 @@ __linuxN(note_nt_auxv)(void *arg, struct sbuf *sb, size_t *sizep)
PRELE(p);
}
}
+
+/*
+ * Copy strings out to the new process address space, constructing new arg
+ * and env vector tables. Return a pointer to the base so that it can be used
+ * as the initial stack pointer.
+ */
+int
+__linuxN(copyout_strings)(struct image_params *imgp, uintptr_t *stack_base)
+{
+ char canary[LINUX_AT_RANDOM_LEN];
+ char **vectp;
+ char *stringp;
+ uintptr_t destp, ustringp;
+ struct ps_strings *arginfo;
+ struct proc *p;
+ size_t execpath_len;
+ int argc, envc;
+ int error;
+
+ p = imgp->proc;
+ destp = PROC_PS_STRINGS(p);
+ arginfo = imgp->ps_strings = (void *)destp;
+
+ /*
+ * Copy the image path for the rtld.
+ */
+ if (imgp->execpath != NULL && imgp->auxargs != NULL) {
+ execpath_len = strlen(imgp->execpath) + 1;
+ destp -= execpath_len;
+ destp = rounddown2(destp, sizeof(void *));
+ imgp->execpathp = (void *)destp;
+ error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
+ if (error != 0)
+ return (error);
+ }
+
+ /*
+ * Prepare the canary for SSP.
+ */
+ arc4rand(canary, sizeof(canary), 0);
+ destp -= sizeof(canary);
+ imgp->canary = (void *)destp;
+ error = copyout(canary, imgp->canary, sizeof(canary));
+ if (error != 0)
+ return (error);
+ imgp->canarylen = sizeof(canary);
+
+ /*
+ * Allocate room for the argument and environment strings.
+ */
+ destp -= ARG_MAX - imgp->args->stringspace;
+ destp = rounddown2(destp, sizeof(void *));
+ ustringp = destp;
+
+ if (imgp->auxargs) {
+ /*
+ * Allocate room on the stack for the ELF auxargs
+ * array. It has up to LINUX_AT_COUNT entries.
+ */
+ destp -= LINUX_AT_COUNT * sizeof(Elf_Auxinfo);
+ destp = rounddown2(destp, sizeof(void *));
+ }
+
+ vectp = (char **)destp;
+
+ /*
+ * Allocate room for the argv[] and env vectors including the
+ * terminating NULL pointers.
+ */
+ vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
+
+ /*
+ * Starting with 2.24, glibc depends on a 16-byte stack alignment.
+ */
+ vectp = (char **)((((uintptr_t)vectp + 8) & ~0xF) - 8);
+
+ /*
+ * vectp also becomes our initial stack base
+ */
+ *stack_base = (uintptr_t)vectp;
+
+ stringp = imgp->args->begin_argv;
+ argc = imgp->args->argc;
+ envc = imgp->args->envc;
+
+ /*
+ * Copy out strings - arguments and environment.
+ */
+ error = copyout(stringp, (void *)ustringp,
+ ARG_MAX - imgp->args->stringspace);
+ if (error != 0)
+ return (error);
+
+ /*
+ * Fill in "ps_strings" struct for ps, w, etc.
+ */
+ imgp->argv = vectp;
+ if (suword(&arginfo->ps_argvstr, (long)(intptr_t)vectp) != 0 ||
+ suword32(&arginfo->ps_nargvstr, argc) != 0)
+ return (EFAULT);
+
+ /*
+ * Fill in argument portion of vector table.
+ */
+ for (; argc > 0; --argc) {
+ if (suword(vectp++, ustringp) != 0)
+ return (EFAULT);
+ while (*stringp++ != 0)
+ ustringp++;
+ ustringp++;
+ }
+
+ /* a null vector table pointer separates the argp's from the envp's */
+ if (suword(vectp++, 0) != 0)
+ return (EFAULT);
+
+ imgp->envv = vectp;
+ if (suword(&arginfo->ps_envstr, (long)(intptr_t)vectp) != 0 ||
+ suword32(&arginfo->ps_nenvstr, envc) != 0)
+ return (EFAULT);
+
+ /*
+ * Fill in environment portion of vector table.
+ */
+ for (; envc > 0; --envc) {
+ if (suword(vectp++, ustringp) != 0)
+ return (EFAULT);
+ while (*stringp++ != 0)
+ ustringp++;
+ ustringp++;
+ }
+
+ /* end of vector table is a null pointer */
+ if (suword(vectp, 0) != 0)
+ return (EFAULT);
+
+ if (imgp->auxargs) {
+ vectp++;
+ error = imgp->sysent->sv_copyout_auxargs(imgp,
+ (uintptr_t)vectp);
+ if (error != 0)
+ return (error);
+ }
+
+ return (0);
+}
diff --git a/sys/compat/linux/linux_elf.h b/sys/compat/linux/linux_elf.h
index 18d229d8481e..e0905983070b 100644
--- a/sys/compat/linux/linux_elf.h
+++ b/sys/compat/linux/linux_elf.h
@@ -38,5 +38,6 @@ struct note_info_list;
void __linuxN(prepare_notes)(struct thread *, struct note_info_list *,
size_t *);
+int __linuxN(copyout_strings)(struct image_params *, uintptr_t *);
#endif
diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c
index dd924ab8a148..dc41b9595003 100644
--- a/sys/i386/linux/linux_sysvec.c
+++ b/sys/i386/linux/linux_sysvec.c
@@ -111,8 +111,6 @@ static void linux_exec_setregs(struct thread *td,
static void linux_exec_sysvec_init(void *param);
static int linux_on_exec_vmspace(struct proc *p,
struct image_params *imgp);
-static int linux_copyout_strings(struct image_params *imgp,
- uintptr_t *stack_base);
static void linux_set_fork_retval(struct thread *td);
static bool linux_trans_osrel(const Elf_Note *note, int32_t *osrel);
static void linux_vdso_install(const void *param);
@@ -201,124 +199,6 @@ linux_copyout_auxargs(struct image_params *imgp, uintptr_t base)
return (error);
}
-/*
- * Copied from kern/kern_exec.c
- */
-static int
-linux_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
-{
- int argc, envc, error;
- char **vectp;
- char *stringp;
- uintptr_t destp, ustringp;
- struct ps_strings *arginfo;
- char canary[LINUX_AT_RANDOM_LEN];
- size_t execpath_len;
- struct proc *p;
-
- p = imgp->proc;
- arginfo = (struct ps_strings *)PROC_PS_STRINGS(p);
- destp = (uintptr_t)arginfo;
-
- if (imgp->execpath != NULL && imgp->auxargs != NULL) {
- execpath_len = strlen(imgp->execpath) + 1;
- destp -= execpath_len;
- destp = rounddown2(destp, sizeof(void *));
- imgp->execpathp = (void *)destp;
- error = copyout(imgp->execpath, imgp->execpathp, execpath_len);
- if (error != 0)
- return (error);
- }
-
- /* Prepare the canary for SSP. */
- arc4rand(canary, sizeof(canary), 0);
- destp -= roundup(sizeof(canary), sizeof(void *));
- imgp->canary = (void *)destp;
- error = copyout(canary, imgp->canary, sizeof(canary));
- if (error != 0)
- return (error);
-
- /* Allocate room for the argument and environment strings. */
- destp -= ARG_MAX - imgp->args->stringspace;
- destp = rounddown2(destp, sizeof(void *));
- ustringp = destp;
-
- if (imgp->auxargs) {
- /*
- * Allocate room on the stack for the ELF auxargs
- * array. It has LINUX_AT_COUNT entries.
- */
- destp -= LINUX_AT_COUNT * sizeof(Elf32_Auxinfo);
- destp = rounddown2(destp, sizeof(void *));
- }
-
- vectp = (char **)destp;
-
- /*
- * Allocate room for the argv[] and env vectors including the
- * terminating NULL pointers.
- */
- vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
-
- /* vectp also becomes our initial stack base. */
- *stack_base = (uintptr_t)vectp;
-
- stringp = imgp->args->begin_argv;
- argc = imgp->args->argc;
- envc = imgp->args->envc;
-
- /* Copy out strings - arguments and environment. */
- error = copyout(stringp, (void *)ustringp,
- ARG_MAX - imgp->args->stringspace);
- if (error != 0)
- return (error);
-
- /* Fill in "ps_strings" struct for ps, w, etc. */
- if (suword(&arginfo->ps_argvstr, (long)(intptr_t)vectp) != 0 ||
- suword(&arginfo->ps_nargvstr, argc) != 0)
- return (EFAULT);
-
- /* Fill in argument portion of vector table. */
- for (; argc > 0; --argc) {
- if (suword(vectp++, ustringp) != 0)
- return (EFAULT);
- while (*stringp++ != 0)
- ustringp++;
- ustringp++;
- }
-
- /* A null vector table pointer separates the argp's from the envp's. */
- if (suword(vectp++, 0) != 0)
- return (EFAULT);
-
- if (suword(&arginfo->ps_envstr, (long)(intptr_t)vectp) != 0 ||
- suword(&arginfo->ps_nenvstr, envc) != 0)
- return (EFAULT);
-
- /* Fill in environment portion of vector table. */
- for (; envc > 0; --envc) {
- if (suword(vectp++, ustringp) != 0)
- return (EFAULT);
- while (*stringp++ != 0)
- ustringp++;
- ustringp++;
- }
-
- /* The end of the vector table is a null pointer. */
- if (suword(vectp, 0) != 0)
- return (EFAULT);
-
- if (imgp->auxargs) {
- vectp++;
- error = imgp->sysent->sv_copyout_auxargs(imgp,
- (uintptr_t)vectp);
- if (error != 0)
- return (error);
- }
-
- return (0);
-}
-
static void
linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
{
@@ -803,7 +683,7 @@ struct sysentvec elf_linux_sysvec = {
.sv_psstringssz = sizeof(struct ps_strings),
.sv_stackprot = VM_PROT_ALL,
.sv_copyout_auxargs = linux_copyout_auxargs,
- .sv_copyout_strings = linux_copyout_strings,
+ .sv_copyout_strings = __linuxN(copyout_strings),
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,