Date: Sat, 22 Apr 2023 19:18:39 GMT From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 7d8c98398302 - main - linux(4): Deduplicate linux_copyout_auxargs() Message-ID: <202304221918.33MJIdb8085083@gitrepo.freebsd.org>
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The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=7d8c98398302b939b97310d31883ebdab8c0b938 commit 7d8c98398302b939b97310d31883ebdab8c0b938 Author: Dmitry Chagin <dchagin@FreeBSD.org> AuthorDate: 2023-04-22 19:16:02 +0000 Commit: Dmitry Chagin <dchagin@FreeBSD.org> CommitDate: 2023-04-22 19:16:02 +0000 linux(4): Deduplicate linux_copyout_auxargs() Export default MINSIGSTKSZ value for the x86 until we do not preserve AVX registers in the signal context. Differential Revision: https://reviews.freebsd.org/D39644 MFC after: 1 month --- sys/amd64/linux/linux.h | 2 +- sys/amd64/linux/linux_sysvec.c | 56 ++++++--------------------------- sys/amd64/linux32/linux.h | 2 +- sys/amd64/linux32/linux32_sysvec.c | 64 ++++++-------------------------------- sys/arm64/linux/linux_sysvec.c | 58 +++++----------------------------- sys/compat/linux/linux_elf.c | 54 ++++++++++++++++++++++++++++++++ sys/compat/linux/linux_elf.h | 2 ++ sys/i386/linux/linux.h | 2 +- sys/i386/linux/linux_sysvec.c | 64 +++++++------------------------------- 9 files changed, 98 insertions(+), 206 deletions(-) diff --git a/sys/amd64/linux/linux.h b/sys/amd64/linux/linux.h index d8de283c0201..c57134da6464 100644 --- a/sys/amd64/linux/linux.h +++ b/sys/amd64/linux/linux.h @@ -90,7 +90,7 @@ typedef struct { /* * Miscellaneous */ -#define LINUX_AT_COUNT 20 /* Count of used aux entry types. */ +#define LINUX_AT_COUNT 21 /* Count of used aux entry types. */ struct l___sysctl_args { diff --git a/sys/amd64/linux/linux_sysvec.c b/sys/amd64/linux/linux_sysvec.c index 6d4deb06dc00..8e157f1ffb6b 100644 --- a/sys/amd64/linux/linux_sysvec.c +++ b/sys/amd64/linux/linux_sysvec.c @@ -207,52 +207,14 @@ linux_set_fork_retval(struct thread *td) frame->tf_rax = 0; } -static int -linux_copyout_auxargs(struct image_params *imgp, uintptr_t base) +void +linux64_arch_copyout_auxargs(struct image_params *imgp, Elf_Auxinfo **pos) { - Elf_Auxargs *args; - Elf_Auxinfo *argarray, *pos; - struct proc *p; - int error, issetugid; - - p = imgp->proc; - args = (Elf64_Auxargs *)imgp->auxargs; - argarray = pos = malloc(LINUX_AT_COUNT * sizeof(*pos), M_TEMP, - M_WAITOK | M_ZERO); - - issetugid = p->p_flag & P_SUGID ? 1 : 0; - AUXARGS_ENTRY(pos, LINUX_AT_SYSINFO_EHDR, linux_vdso_base); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP, cpu_feature); - AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); - AUXARGS_ENTRY(pos, LINUX_AT_CLKTCK, stclohz); - AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); - AUXARGS_ENTRY(pos, AT_PHENT, args->phent); - AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); - AUXARGS_ENTRY(pos, AT_BASE, args->base); - AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); - AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); - AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_ucred->cr_ruid); - AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_ucred->cr_svuid); - AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_ucred->cr_rgid); - AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_ucred->cr_svgid); - AUXARGS_ENTRY(pos, LINUX_AT_SECURE, issetugid); - AUXARGS_ENTRY_PTR(pos, LINUX_AT_RANDOM, imgp->canary); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP2, 0); - if (imgp->execpathp != 0) - AUXARGS_ENTRY_PTR(pos, LINUX_AT_EXECFN, imgp->execpathp); - if (args->execfd != -1) - AUXARGS_ENTRY(pos, AT_EXECFD, args->execfd); - AUXARGS_ENTRY(pos, LINUX_AT_PLATFORM, PTROUT(linux_platform)); - AUXARGS_ENTRY(pos, AT_NULL, 0); - - free(imgp->auxargs, M_TEMP); - imgp->auxargs = NULL; - KASSERT(pos - argarray <= LINUX_AT_COUNT, ("Too many auxargs")); - - error = copyout(argarray, (void *)base, - sizeof(*argarray) * LINUX_AT_COUNT); - free(argarray, M_TEMP); - return (error); + + AUXARGS_ENTRY((*pos), LINUX_AT_SYSINFO_EHDR, linux_vdso_base); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP, cpu_feature); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP2, 0); + AUXARGS_ENTRY((*pos), LINUX_AT_PLATFORM, PTROUT(linux_platform)); } /* @@ -623,7 +585,7 @@ struct sysentvec elf_linux_sysvec = { .sv_psstrings = LINUX_PS_STRINGS_LA48, .sv_psstringssz = sizeof(struct ps_strings), .sv_stackprot = VM_PROT_ALL, - .sv_copyout_auxargs = linux_copyout_auxargs, + .sv_copyout_auxargs = __linuxN(copyout_auxargs), .sv_copyout_strings = __linuxN(copyout_strings), .sv_setregs = linux_exec_setregs, .sv_fixlimit = NULL, @@ -638,6 +600,8 @@ struct sysentvec elf_linux_sysvec = { .sv_schedtail = linux_schedtail, .sv_thread_detach = linux_thread_detach, .sv_trap = linux_vsyscall, + .sv_hwcap = NULL, + .sv_hwcap2 = NULL, .sv_onexec = linux_on_exec_vmspace, .sv_onexit = linux_on_exit, .sv_ontdexit = linux_thread_dtor, diff --git a/sys/amd64/linux32/linux.h b/sys/amd64/linux32/linux.h index 9beee0b7079c..8693585da6d3 100644 --- a/sys/amd64/linux32/linux.h +++ b/sys/amd64/linux32/linux.h @@ -103,7 +103,7 @@ typedef struct { /* * Miscellaneous */ -#define LINUX_AT_COUNT 21 /* Count of used aux entry types. +#define LINUX_AT_COUNT 22 /* Count of used aux entry types. * Keep this synchronized with * linux_fixup_elf() code. */ diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c index d398a463b8c2..3cec5d2e9eeb 100644 --- a/sys/amd64/linux32/linux32_sysvec.c +++ b/sys/amd64/linux32/linux32_sysvec.c @@ -139,61 +139,15 @@ LINUX_VDSO_SYM_INTPTR(kern_tsc_selector); LINUX_VDSO_SYM_INTPTR(kern_cpu_selector); LINUX_VDSO_SYM_CHAR(linux_platform); -static int -linux_copyout_auxargs(struct image_params *imgp, uintptr_t base) +void +linux32_arch_copyout_auxargs(struct image_params *imgp, Elf_Auxinfo **pos) { - Elf32_Auxargs *args; - Elf32_Auxinfo *argarray, *pos; - int error, issetugid; - - args = (Elf32_Auxargs *)imgp->auxargs; - argarray = pos = malloc(LINUX_AT_COUNT * sizeof(*pos), M_TEMP, - M_WAITOK | M_ZERO); - - issetugid = imgp->proc->p_flag & P_SUGID ? 1 : 0; - AUXARGS_ENTRY(pos, LINUX_AT_SYSINFO, __kernel_vsyscall); - AUXARGS_ENTRY(pos, LINUX_AT_SYSINFO_EHDR, linux_vdso_base); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP, cpu_feature); - AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); - /* - * Do not export AT_CLKTCK when emulating Linux kernel prior to 2.4.0, - * as it has appeared in the 2.4.0-rc7 first time. - * Being exported, AT_CLKTCK is returned by sysconf(_SC_CLK_TCK), - * glibc falls back to the hard-coded CLK_TCK value when aux entry - * is not present. - * Also see linux_times() implementation. - */ - if (linux_kernver(curthread) >= LINUX_KERNVER_2004000) - AUXARGS_ENTRY(pos, LINUX_AT_CLKTCK, stclohz); - AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); - AUXARGS_ENTRY(pos, AT_PHENT, args->phent); - AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); - AUXARGS_ENTRY(pos, AT_BASE, args->base); - AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); - AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); - AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_ucred->cr_ruid); - AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_ucred->cr_svuid); - AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_ucred->cr_rgid); - AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_ucred->cr_svgid); - AUXARGS_ENTRY(pos, LINUX_AT_SECURE, issetugid); - AUXARGS_ENTRY(pos, LINUX_AT_RANDOM, PTROUT(imgp->canary)); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP2, 0); - if (imgp->execpathp != 0) - AUXARGS_ENTRY(pos, LINUX_AT_EXECFN, PTROUT(imgp->execpathp)); - if (args->execfd != -1) - AUXARGS_ENTRY(pos, AT_EXECFD, args->execfd); - AUXARGS_ENTRY(pos, LINUX_AT_PLATFORM, PTROUT(linux_platform)); - AUXARGS_ENTRY(pos, AT_NULL, 0); - - free(imgp->auxargs, M_TEMP); - imgp->auxargs = NULL; - KASSERT(pos - argarray <= LINUX_AT_COUNT, ("Too many auxargs")); - - error = copyout(argarray, (void *)base, - sizeof(*argarray) * LINUX_AT_COUNT); - free(argarray, M_TEMP); - return (error); + AUXARGS_ENTRY((*pos), LINUX_AT_SYSINFO, __kernel_vsyscall); + AUXARGS_ENTRY((*pos), LINUX_AT_SYSINFO_EHDR, linux_vdso_base); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP, cpu_feature); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP2, 0); + AUXARGS_ENTRY((*pos), LINUX_AT_PLATFORM, PTROUT(linux_platform)); } static void @@ -848,7 +802,7 @@ struct sysentvec elf_linux_sysvec = { .sv_psstrings = LINUX32_PS_STRINGS, .sv_psstringssz = sizeof(struct linux32_ps_strings), .sv_stackprot = VM_PROT_ALL, - .sv_copyout_auxargs = linux_copyout_auxargs, + .sv_copyout_auxargs = __linuxN(copyout_auxargs), .sv_copyout_strings = linux_copyout_strings, .sv_setregs = linux_exec_setregs, .sv_fixlimit = linux32_fixlimit, @@ -863,6 +817,8 @@ struct sysentvec elf_linux_sysvec = { .sv_schedtail = linux_schedtail, .sv_thread_detach = linux_thread_detach, .sv_trap = NULL, + .sv_hwcap = NULL, + .sv_hwcap2 = NULL, .sv_onexec = linux_on_exec_vmspace, .sv_onexit = linux_on_exit, .sv_ontdexit = linux_thread_dtor, diff --git a/sys/arm64/linux/linux_sysvec.c b/sys/arm64/linux/linux_sysvec.c index 19fef57e78e4..8940a0eb8486 100644 --- a/sys/arm64/linux/linux_sysvec.c +++ b/sys/arm64/linux/linux_sysvec.c @@ -115,7 +115,6 @@ 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); LINUX_VDSO_SYM_CHAR(linux_platform); LINUX_VDSO_SYM_INTPTR(kern_timekeep_base); @@ -162,55 +161,14 @@ linux_set_syscall_retval(struct thread *td, int error) } } -static int -linux_copyout_auxargs(struct image_params *imgp, uintptr_t base) +void +linux64_arch_copyout_auxargs(struct image_params *imgp, Elf_Auxinfo **pos) { - Elf_Auxargs *args; - Elf_Auxinfo *argarray, *pos; - struct proc *p; - int error, issetugid; - - LIN_SDT_PROBE0(sysvec, linux_copyout_auxargs, todo); - p = imgp->proc; - - args = (Elf64_Auxargs *)imgp->auxargs; - argarray = pos = malloc(LINUX_AT_COUNT * sizeof(*pos), M_TEMP, - M_WAITOK | M_ZERO); - - issetugid = p->p_flag & P_SUGID ? 1 : 0; - AUXARGS_ENTRY(pos, LINUX_AT_SYSINFO_EHDR, linux_vdso_base); - AUXARGS_ENTRY(pos, LINUX_AT_MINSIGSTKSZ, LINUX_MINSIGSTKSZ); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP, *imgp->sysent->sv_hwcap); - AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); - AUXARGS_ENTRY(pos, LINUX_AT_CLKTCK, stclohz); - AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); - AUXARGS_ENTRY(pos, AT_PHENT, args->phent); - AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); - AUXARGS_ENTRY(pos, AT_BASE, args->base); - AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); - AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); - AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_ucred->cr_ruid); - AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_ucred->cr_svuid); - AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_ucred->cr_rgid); - AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_ucred->cr_svgid); - AUXARGS_ENTRY(pos, LINUX_AT_SECURE, issetugid); - AUXARGS_ENTRY_PTR(pos, LINUX_AT_RANDOM, imgp->canary); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP2, *imgp->sysent->sv_hwcap2); - if (imgp->execpathp != 0) - AUXARGS_ENTRY_PTR(pos, LINUX_AT_EXECFN, imgp->execpathp); - if (args->execfd != -1) - AUXARGS_ENTRY(pos, AT_EXECFD, args->execfd); - AUXARGS_ENTRY(pos, LINUX_AT_PLATFORM, PTROUT(linux_platform)); - AUXARGS_ENTRY(pos, AT_NULL, 0); - - free(imgp->auxargs, M_TEMP); - imgp->auxargs = NULL; - KASSERT(pos - argarray <= LINUX_AT_COUNT, ("Too many auxargs")); - - error = copyout(argarray, (void *)base, - sizeof(*argarray) * LINUX_AT_COUNT); - free(argarray, M_TEMP); - return (error); + + AUXARGS_ENTRY((*pos), LINUX_AT_SYSINFO_EHDR, linux_vdso_base); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP, *imgp->sysent->sv_hwcap); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP2, *imgp->sysent->sv_hwcap2); + AUXARGS_ENTRY((*pos), LINUX_AT_PLATFORM, PTROUT(linux_platform)); } /* @@ -425,7 +383,7 @@ struct sysentvec elf_linux_sysvec = { .sv_psstrings = LINUX_PS_STRINGS, .sv_psstringssz = sizeof(struct ps_strings), .sv_stackprot = VM_PROT_READ | VM_PROT_WRITE, - .sv_copyout_auxargs = linux_copyout_auxargs, + .sv_copyout_auxargs = __linuxN(copyout_auxargs), .sv_copyout_strings = __linuxN(copyout_strings), .sv_setregs = linux_exec_setregs, .sv_fixlimit = NULL, diff --git a/sys/compat/linux/linux_elf.c b/sys/compat/linux/linux_elf.c index 43df9508d470..9b2c38aba444 100644 --- a/sys/compat/linux/linux_elf.c +++ b/sys/compat/linux/linux_elf.c @@ -488,3 +488,57 @@ linux_trans_osrel(const Elf_Note *note, int32_t *osrel) return (true); } + +int +__linuxN(copyout_auxargs)(struct image_params *imgp, uintptr_t base) +{ + Elf_Auxargs *args; + Elf_Auxinfo *aarray, *pos; + struct proc *p; + int error, issetugid; + + p = imgp->proc; + issetugid = p->p_flag & P_SUGID ? 1 : 0; + args = imgp->auxargs; + aarray = pos = malloc(LINUX_AT_COUNT * sizeof(*pos), M_TEMP, + M_WAITOK | M_ZERO); + + __linuxN(arch_copyout_auxargs)(imgp, &pos); + /* + * Do not export AT_CLKTCK when emulating Linux kernel prior to 2.4.0, + * as it has appeared in the 2.4.0-rc7 first time. + * Being exported, AT_CLKTCK is returned by sysconf(_SC_CLK_TCK), + * glibc falls back to the hard-coded CLK_TCK value when aux entry + * is not present. + * Also see linux_times() implementation. + */ + if (linux_kernver(curthread) >= LINUX_KERNVER_2004000) + AUXARGS_ENTRY(pos, LINUX_AT_CLKTCK, stclohz); + AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); + AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); + AUXARGS_ENTRY(pos, AT_PHENT, args->phent); + AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); + AUXARGS_ENTRY(pos, AT_BASE, args->base); + AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); + AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); + AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_ucred->cr_ruid); + AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_ucred->cr_svuid); + AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_ucred->cr_rgid); + AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_ucred->cr_svgid); + AUXARGS_ENTRY(pos, LINUX_AT_SECURE, issetugid); + AUXARGS_ENTRY_PTR(pos, LINUX_AT_RANDOM, imgp->canary); + if (imgp->execpathp != 0) + AUXARGS_ENTRY(pos, LINUX_AT_EXECFN, PTROUT(imgp->execpathp)); + if (args->execfd != -1) + AUXARGS_ENTRY(pos, AT_EXECFD, args->execfd); + AUXARGS_ENTRY(pos, LINUX_AT_MINSIGSTKSZ, LINUX_MINSIGSTKSZ); + AUXARGS_ENTRY(pos, AT_NULL, 0); + + free(imgp->auxargs, M_TEMP); + imgp->auxargs = NULL; + KASSERT(pos - aarray <= LINUX_AT_COUNT, ("Too many auxargs")); + + error = copyout(aarray, PTRIN(base), sizeof(*aarray) * LINUX_AT_COUNT); + free(aarray, M_TEMP); + return (error); +} diff --git a/sys/compat/linux/linux_elf.h b/sys/compat/linux/linux_elf.h index 87b21c4a14b2..8f134cd4e233 100644 --- a/sys/compat/linux/linux_elf.h +++ b/sys/compat/linux/linux_elf.h @@ -42,6 +42,8 @@ struct note_info_list; void __linuxN(prepare_notes)(struct thread *, struct note_info_list *, size_t *); +void __linuxN(arch_copyout_auxargs)(struct image_params *, Elf_Auxinfo **); +int __linuxN(copyout_auxargs)(struct image_params *, uintptr_t); int __linuxN(copyout_strings)(struct image_params *, uintptr_t *); bool linux_trans_osrel(const Elf_Note *note, int32_t *osrel); diff --git a/sys/i386/linux/linux.h b/sys/i386/linux/linux.h index 7810f8d29ccd..063c81510c02 100644 --- a/sys/i386/linux/linux.h +++ b/sys/i386/linux/linux.h @@ -95,7 +95,7 @@ typedef struct { /* * Miscellaneous */ -#define LINUX_AT_COUNT 20 /* Count of used aux entry types. +#define LINUX_AT_COUNT 21 /* Count of used aux entry types. * Keep this synchronized with * linux_fixup_elf() code. */ diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c index f0b979725741..625eb8a09d26 100644 --- a/sys/i386/linux/linux_sysvec.c +++ b/sys/i386/linux/linux_sysvec.c @@ -138,60 +138,14 @@ linux_fixup(uintptr_t *stack_base, struct image_params *imgp) return (0); } -static int -linux_copyout_auxargs(struct image_params *imgp, uintptr_t base) +void +linux32_arch_copyout_auxargs(struct image_params *imgp, Elf_Auxinfo **pos) { - Elf32_Auxargs *args; - Elf32_Auxinfo *argarray, *pos; - int error, issetugid; - - issetugid = imgp->proc->p_flag & P_SUGID ? 1 : 0; - args = (Elf32_Auxargs *)imgp->auxargs; - argarray = pos = malloc(LINUX_AT_COUNT * sizeof(*pos), M_TEMP, - M_WAITOK | M_ZERO); - - AUXARGS_ENTRY(pos, LINUX_AT_SYSINFO_EHDR, linux_vdso_base); - AUXARGS_ENTRY(pos, LINUX_AT_SYSINFO, __kernel_vsyscall); - AUXARGS_ENTRY(pos, LINUX_AT_HWCAP, cpu_feature); - /* - * Do not export AT_CLKTCK when emulating Linux kernel prior to 2.4.0, - * as it has appeared in the 2.4.0-rc7 first time. - * Being exported, AT_CLKTCK is returned by sysconf(_SC_CLK_TCK), - * glibc falls back to the hard-coded CLK_TCK value when aux entry - * is not present. - * Also see linux_times() implementation. - */ - if (linux_kernver(curthread) >= LINUX_KERNVER_2004000) - AUXARGS_ENTRY(pos, LINUX_AT_CLKTCK, stclohz); - AUXARGS_ENTRY(pos, AT_PHDR, args->phdr); - AUXARGS_ENTRY(pos, AT_PHENT, args->phent); - AUXARGS_ENTRY(pos, AT_PHNUM, args->phnum); - AUXARGS_ENTRY(pos, AT_PAGESZ, args->pagesz); - AUXARGS_ENTRY(pos, AT_FLAGS, args->flags); - AUXARGS_ENTRY(pos, AT_ENTRY, args->entry); - AUXARGS_ENTRY(pos, AT_BASE, args->base); - AUXARGS_ENTRY(pos, LINUX_AT_SECURE, issetugid); - AUXARGS_ENTRY(pos, AT_UID, imgp->proc->p_ucred->cr_ruid); - AUXARGS_ENTRY(pos, AT_EUID, imgp->proc->p_ucred->cr_svuid); - AUXARGS_ENTRY(pos, AT_GID, imgp->proc->p_ucred->cr_rgid); - AUXARGS_ENTRY(pos, AT_EGID, imgp->proc->p_ucred->cr_svgid); - AUXARGS_ENTRY(pos, LINUX_AT_PLATFORM, PTROUT(linux_platform)); - AUXARGS_ENTRY_PTR(pos, LINUX_AT_RANDOM, imgp->canary); - if (imgp->execpathp != 0) - AUXARGS_ENTRY_PTR(pos, LINUX_AT_EXECFN, imgp->execpathp); - if (args->execfd != -1) - AUXARGS_ENTRY(pos, AT_EXECFD, args->execfd); - AUXARGS_ENTRY(pos, AT_NULL, 0); - - free(imgp->auxargs, M_TEMP); - imgp->auxargs = NULL; - KASSERT(pos - argarray <= LINUX_AT_COUNT, ("Too many auxargs")); - - error = copyout(argarray, (void *)base, - sizeof(*argarray) * LINUX_AT_COUNT); - free(argarray, M_TEMP); - return (error); + AUXARGS_ENTRY((*pos), LINUX_AT_SYSINFO_EHDR, linux_vdso_base); + AUXARGS_ENTRY((*pos), LINUX_AT_SYSINFO, __kernel_vsyscall); + AUXARGS_ENTRY((*pos), LINUX_AT_HWCAP, cpu_feature); + AUXARGS_ENTRY((*pos), LINUX_AT_PLATFORM, PTROUT(linux_platform)); } static void @@ -650,6 +604,8 @@ struct sysentvec linux_sysvec = { .sv_schedtail = linux_schedtail, .sv_thread_detach = linux_thread_detach, .sv_trap = NULL, + .sv_hwcap = NULL, + .sv_hwcap2 = NULL, .sv_onexec = linux_on_exec_vmspace, .sv_onexit = linux_on_exit, .sv_ontdexit = linux_thread_dtor, @@ -678,7 +634,7 @@ struct sysentvec elf_linux_sysvec = { .sv_psstrings = LINUX_PS_STRINGS, .sv_psstringssz = sizeof(struct ps_strings), .sv_stackprot = VM_PROT_ALL, - .sv_copyout_auxargs = linux_copyout_auxargs, + .sv_copyout_auxargs = __linuxN(copyout_auxargs), .sv_copyout_strings = __linuxN(copyout_strings), .sv_setregs = linux_exec_setregs, .sv_fixlimit = NULL, @@ -693,6 +649,8 @@ struct sysentvec elf_linux_sysvec = { .sv_schedtail = linux_schedtail, .sv_thread_detach = linux_thread_detach, .sv_trap = NULL, + .sv_hwcap = NULL, + .sv_hwcap2 = NULL, .sv_onexec = linux_on_exec_vmspace, .sv_onexit = linux_on_exit, .sv_ontdexit = linux_thread_dtor,
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