Date: Fri, 13 Mar 2009 16:40:51 +0000 (UTC) From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r189771 - in head/sys: amd64/amd64 amd64/linux32 arm/arm compat/ia32 compat/svr4 i386/i386 i386/linux ia64/ia64 kern mips/mips powerpc/powerpc sparc64/sparc64 sys Message-ID: <200903131640.n2DGep8f068001@svn.freebsd.org>
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Author: dchagin Date: Fri Mar 13 16:40:51 2009 New Revision: 189771 URL: http://svn.freebsd.org/changeset/base/189771 Log: Implement new way of branding ELF binaries by looking to a ".note.ABI-tag" section. The search order of a brand is changed, now first of all the ".note.ABI-tag" is looked through. Move code which fetch osreldate for ELF binary to check_note() handler. PR: 118473 Approved by: kib (mentor) 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/linux/linux_sysvec.c head/sys/ia64/ia64/elf_machdep.c head/sys/kern/imgact_elf.c head/sys/mips/mips/elf64_machdep.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/imgact_elf.h Modified: head/sys/amd64/amd64/elf_machdep.c ============================================================================== --- head/sys/amd64/amd64/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/amd64/amd64/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -84,7 +84,8 @@ static Elf64_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf64_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_ANY, @@ -99,7 +100,8 @@ static Elf64_Brandinfo freebsd_brand_oin .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf64_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oelf64, SI_SUB_EXEC, SI_ORDER_ANY, Modified: head/sys/amd64/linux32/linux32_sysvec.c ============================================================================== --- head/sys/amd64/linux32/linux32_sysvec.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/amd64/linux32/linux32_sysvec.c Fri Mar 13 16:40:51 2009 (r189771) @@ -1047,6 +1047,16 @@ struct sysentvec elf_linux_sysvec = { .sv_flags = SV_ABI_LINUX | SV_ILP32 | SV_IA32 }; +static char GNULINUX_ABI_VENDOR[] = "GNU"; + +static Elf_Brandnote linux32_brandnote = { + .hdr.n_namesz = sizeof(GNULINUX_ABI_VENDOR), + .hdr.n_descsz = 16, + .hdr.n_type = 1, + .vendor = GNULINUX_ABI_VENDOR, + .flags = 0 +}; + static Elf32_Brandinfo linux_brand = { .brand = ELFOSABI_LINUX, .machine = EM_386, @@ -1055,7 +1065,8 @@ static Elf32_Brandinfo linux_brand = { .interp_path = "/lib/ld-linux.so.1", .sysvec = &elf_linux_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &linux32_brandnote, + .flags = BI_CAN_EXEC_DYN }; static Elf32_Brandinfo linux_glibc2brand = { @@ -1066,7 +1077,8 @@ static Elf32_Brandinfo linux_glibc2brand .interp_path = "/lib/ld-linux.so.2", .sysvec = &elf_linux_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &linux32_brandnote, + .flags = BI_CAN_EXEC_DYN }; Elf32_Brandinfo *linux_brandlist[] = { Modified: head/sys/arm/arm/elf_machdep.c ============================================================================== --- head/sys/arm/arm/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/arm/arm/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -84,7 +84,8 @@ static Elf32_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(elf32, SI_SUB_EXEC, SI_ORDER_ANY, @@ -99,7 +100,8 @@ static Elf32_Brandinfo freebsd_brand_oin .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oelf32, SI_SUB_EXEC, SI_ORDER_ANY, Modified: head/sys/compat/ia32/ia32_sysvec.c ============================================================================== --- head/sys/compat/ia32/ia32_sysvec.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/compat/ia32/ia32_sysvec.c Fri Mar 13 16:40:51 2009 (r189771) @@ -148,6 +148,7 @@ static Elf32_Brandinfo ia32_brand_info = .interp_path = "/libexec/ld-elf.so.1", .sysvec = &ia32_freebsd_sysvec, .interp_newpath = "/libexec/ld-elf32.so.1", + .brand_note = &elf32_freebsd_brandnote, .flags = BI_CAN_EXEC_DYN }; @@ -163,7 +164,8 @@ static Elf32_Brandinfo ia32_brand_oinfo .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &ia32_freebsd_sysvec, .interp_newpath = "/libexec/ld-elf32.so.1", - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oia32, SI_SUB_EXEC, SI_ORDER_ANY, Modified: head/sys/compat/svr4/svr4_sysvec.c ============================================================================== --- head/sys/compat/svr4/svr4_sysvec.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/compat/svr4/svr4_sysvec.c Fri Mar 13 16:40:51 2009 (r189771) @@ -204,6 +204,7 @@ Elf32_Brandinfo svr4_brand = { .interp_path = "/lib/libc.so.1", .sysvec = &svr4_sysvec, .interp_newpath = NULL, + .brand_note = NULL, .flags = 0 }; Modified: head/sys/i386/i386/elf_machdep.c ============================================================================== --- head/sys/i386/i386/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/i386/i386/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -84,7 +84,8 @@ static Elf32_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(elf32, SI_SUB_EXEC, SI_ORDER_ANY, @@ -99,7 +100,8 @@ static Elf32_Brandinfo freebsd_brand_oin .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oelf32, SI_SUB_EXEC, SI_ORDER_ANY, Modified: head/sys/i386/linux/linux_sysvec.c ============================================================================== --- head/sys/i386/linux/linux_sysvec.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/i386/linux/linux_sysvec.c Fri Mar 13 16:40:51 2009 (r189771) @@ -1019,6 +1019,16 @@ struct sysentvec elf_linux_sysvec = { .sv_flags = SV_ABI_LINUX | SV_IA32 | SV_ILP32 }; +static char GNULINUX_ABI_VENDOR[] = "GNU"; + +static Elf_Brandnote linux_brandnote = { + .hdr.n_namesz = sizeof(GNULINUX_ABI_VENDOR), + .hdr.n_descsz = 16, + .hdr.n_type = 1, + .vendor = GNULINUX_ABI_VENDOR, + .flags = 0 +}; + static Elf32_Brandinfo linux_brand = { .brand = ELFOSABI_LINUX, .machine = EM_386, @@ -1027,7 +1037,8 @@ static Elf32_Brandinfo linux_brand = { .interp_path = "/lib/ld-linux.so.1", .sysvec = &elf_linux_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &linux_brandnote, + .flags = BI_CAN_EXEC_DYN }; static Elf32_Brandinfo linux_glibc2brand = { @@ -1038,7 +1049,8 @@ static Elf32_Brandinfo linux_glibc2brand .interp_path = "/lib/ld-linux.so.2", .sysvec = &elf_linux_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &linux_brandnote, + .flags = BI_CAN_EXEC_DYN }; Elf32_Brandinfo *linux_brandlist[] = { Modified: head/sys/ia64/ia64/elf_machdep.c ============================================================================== --- head/sys/ia64/ia64/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/ia64/ia64/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -92,7 +92,8 @@ static Elf64_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf64_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_ANY, (sysinit_cfunc_t)elf64_insert_brand_entry, &freebsd_brand_info); @@ -105,7 +106,8 @@ static Elf64_Brandinfo freebsd_brand_oin .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf64_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oelf64, SI_SUB_EXEC, SI_ORDER_ANY, (sysinit_cfunc_t)elf64_insert_brand_entry, &freebsd_brand_oinfo); Modified: head/sys/kern/imgact_elf.c ============================================================================== --- head/sys/kern/imgact_elf.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/kern/imgact_elf.c Fri Mar 13 16:40:51 2009 (r189771) @@ -78,14 +78,16 @@ __FBSDID("$FreeBSD$"); #define OLD_EI_BRAND 8 static int __elfN(check_header)(const Elf_Ehdr *hdr); -static Elf_Brandinfo *__elfN(get_brandinfo)(const Elf_Ehdr *hdr, - const char *interp); +static Elf_Brandinfo *__elfN(get_brandinfo)(struct image_params *imgp, + const char *interp, int32_t *osrel); static int __elfN(load_file)(struct proc *p, const char *file, u_long *addr, u_long *entry, size_t pagesize); static int __elfN(load_section)(struct vmspace *vmspace, vm_object_t object, vm_offset_t offset, caddr_t vmaddr, size_t memsz, size_t filsz, vm_prot_t prot, size_t pagesize); static int __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp); +static boolean_t __elfN(check_note)(struct image_params *imgp, + Elf_Brandnote *checknote, int32_t *osrel); SYSCTL_NODE(_kern, OID_AUTO, __CONCAT(elf, __ELF_WORD_SIZE), CTLFLAG_RW, 0, ""); @@ -107,6 +109,16 @@ static Elf_Brandinfo *elf_brand_list[MAX #define round_page_ps(va, ps) (((va) + (ps - 1)) & ~(ps - 1)) #define aligned(a, t) (trunc_page_ps((u_long)(a), sizeof(t)) == (u_long)(a)) +static const char FREEBSD_ABI_VENDOR[] = "FreeBSD"; + +Elf_Brandnote __elfN(freebsd_brandnote) = { + .hdr.n_namesz = sizeof(FREEBSD_ABI_VENDOR), + .hdr.n_descsz = sizeof(int32_t), + .hdr.n_type = 1, + .vendor = FREEBSD_ABI_VENDOR, + .flags = BN_CAN_FETCH_OSREL +}; + int __elfN(insert_brand_entry)(Elf_Brandinfo *entry) { @@ -158,19 +170,32 @@ __elfN(brand_inuse)(Elf_Brandinfo *entry } static Elf_Brandinfo * -__elfN(get_brandinfo)(const Elf_Ehdr *hdr, const char *interp) +__elfN(get_brandinfo)(struct image_params *imgp, const char *interp, + int32_t *osrel) { + const Elf_Ehdr *hdr = (const Elf_Ehdr *)imgp->image_header; Elf_Brandinfo *bi; + boolean_t ret; int i; /* - * We support three types of branding -- (1) the ELF EI_OSABI field + * We support four types of branding -- (1) the ELF EI_OSABI field * that SCO added to the ELF spec, (2) FreeBSD 3.x's traditional string - * branding w/in the ELF header, and (3) path of the `interp_path' - * field. We should also look for an ".note.ABI-tag" ELF section now - * in all Linux ELF binaries, FreeBSD 4.1+, and some NetBSD ones. + * branding w/in the ELF header, (3) path of the `interp_path' + * field, and (4) the ".note.ABI-tag" ELF section. */ + /* Look for an ".note.ABI-tag" ELF section */ + for (i = 0; i < MAX_BRANDS; i++) { + bi = elf_brand_list[i]; + if (bi != NULL && hdr->e_machine == bi->machine && + bi->brand_note != NULL) { + ret = __elfN(check_note)(imgp, bi->brand_note, osrel); + if (ret) + return (bi); + } + } + /* If the executable has a brand, search for it in the brand list. */ for (i = 0; i < MAX_BRANDS; i++) { bi = elf_brand_list[i]; @@ -590,13 +615,11 @@ fail: return (error); } -static const char FREEBSD_ABI_VENDOR[] = "FreeBSD"; - static int __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp) { const Elf_Ehdr *hdr = (const Elf_Ehdr *)imgp->image_header; - const Elf_Phdr *phdr, *pnote = NULL; + const Elf_Phdr *phdr; Elf_Auxargs *elf_auxargs; struct vmspace *vmspace; vm_prot_t prot; @@ -604,12 +627,11 @@ __CONCAT(exec_, __elfN(imgact))(struct i u_long text_addr = 0, data_addr = 0; u_long seg_size, seg_addr; u_long addr, entry = 0, proghdr = 0; + int32_t osrel = 0; int error = 0, i; const char *interp = NULL, *newinterp = NULL; Elf_Brandinfo *brand_info; - const Elf_Note *note, *note_end; char *path; - const char *note_name; struct sysentvec *sv; /* @@ -646,7 +668,7 @@ __CONCAT(exec_, __elfN(imgact))(struct i } } - brand_info = __elfN(get_brandinfo)(hdr, interp); + brand_info = __elfN(get_brandinfo)(imgp, interp, &osrel); if (brand_info == NULL) { uprintf("ELF binary type \"%u\" not known.\n", hdr->e_ident[EI_OSABI]); @@ -750,9 +772,6 @@ __CONCAT(exec_, __elfN(imgact))(struct i case PT_PHDR: /* Program header table info */ proghdr = phdr[i].p_vaddr; break; - case PT_NOTE: - pnote = &phdr[i]; - break; default: break; } @@ -840,41 +859,7 @@ __CONCAT(exec_, __elfN(imgact))(struct i imgp->auxargs = elf_auxargs; imgp->interpreted = 0; - - /* - * Try to fetch the osreldate for FreeBSD binary from the ELF - * OSABI-note. Only the first page of the image is searched, - * the same as for headers. - */ - if (pnote != NULL && pnote->p_offset < PAGE_SIZE && - pnote->p_offset + pnote->p_filesz < PAGE_SIZE ) { - note = (const Elf_Note *)(imgp->image_header + pnote->p_offset); - if (!aligned(note, Elf32_Addr)) { - free(imgp->auxargs, M_TEMP); - imgp->auxargs = NULL; - return (ENOEXEC); - } - note_end = (const Elf_Note *)(imgp->image_header + pnote->p_offset + - pnote->p_filesz); - while (note < note_end) { - if (note->n_namesz == sizeof(FREEBSD_ABI_VENDOR) && - note->n_descsz == sizeof(int32_t) && - note->n_type == 1 /* ABI_NOTETYPE */) { - note_name = (const char *)(note + 1); - if (strncmp(FREEBSD_ABI_VENDOR, note_name, - sizeof(FREEBSD_ABI_VENDOR)) == 0) { - imgp->proc->p_osrel = *(const int32_t *) - (note_name + - round_page_ps(sizeof(FREEBSD_ABI_VENDOR), - sizeof(Elf32_Addr))); - break; - } - } - note = (const Elf_Note *)((const char *)(note + 1) + - round_page_ps(note->n_namesz, sizeof(Elf32_Addr)) + - round_page_ps(note->n_descsz, sizeof(Elf32_Addr))); - } - } + imgp->proc->p_osrel = osrel; return (error); } @@ -1336,6 +1321,71 @@ __elfN(putnote)(void *dst, size_t *off, } /* + * Try to find the appropriate ABI-note section for checknote, + * fetch the osreldate for binary from the ELF OSABI-note. Only the + * first page of the image is searched, the same as for headers. + */ +static boolean_t +__elfN(check_note)(struct image_params *imgp, Elf_Brandnote *checknote, + int32_t *osrel) +{ + const Elf_Note *note, *note_end; + const Elf32_Phdr *phdr, *pnote; + const Elf32_Ehdr *hdr; + const char *note_name; + int i; + + pnote = NULL; + hdr = (const Elf32_Ehdr *)imgp->image_header; + phdr = (const Elf32_Phdr *)(imgp->image_header + hdr->e_phoff); + + for (i = 0; i < hdr->e_phnum; i++) { + if (phdr[i].p_type == PT_NOTE) { + pnote = &phdr[i]; + break; + } + } + + if (pnote == NULL || pnote->p_offset >= PAGE_SIZE || + pnote->p_offset + pnote->p_filesz >= PAGE_SIZE) + return (FALSE); + + note = (const Elf_Note *)(imgp->image_header + pnote->p_offset); + if (!aligned(note, Elf32_Addr)) + return (FALSE); + note_end = (const Elf_Note *)(imgp->image_header + + pnote->p_offset + pnote->p_filesz); + while (note < note_end) { + if (note->n_namesz != checknote->hdr.n_namesz || + note->n_descsz != checknote->hdr.n_descsz || + note->n_type != checknote->hdr.n_type) + goto nextnote; + note_name = (const char *)(note + 1); + if (strncmp(checknote->vendor, note_name, + checknote->hdr.n_namesz) != 0) + goto nextnote; + + /* + * Fetch the osreldate for binary + * from the ELF OSABI-note if necessary. + */ + if ((checknote->flags & BN_CAN_FETCH_OSREL) != 0 && + osrel != NULL) + *osrel = *(const int32_t *) (note_name + + roundup2(checknote->hdr.n_namesz, + sizeof(Elf32_Addr))); + return (TRUE); + +nextnote: + note = (const Elf_Note *)((const char *)(note + 1) + + roundup2(note->n_namesz, sizeof(Elf32_Addr)) + + roundup2(note->n_descsz, sizeof(Elf32_Addr))); + } + + return (FALSE); +} + +/* * Tell kern_execve.c about it, with a little help from the linker. */ static struct execsw __elfN(execsw) = { Modified: head/sys/mips/mips/elf64_machdep.c ============================================================================== --- head/sys/mips/mips/elf64_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/mips/mips/elf64_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -88,6 +88,7 @@ static Elf64_Brandinfo freebsd_brand_gnu .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_path = "/libexec/ld-elf.so.1", + .brand_note = &elf64_freebsd_brandnote, .flags = BI_CAN_EXEC_DYN }; @@ -103,6 +104,7 @@ static Elf64_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, + .brand_note = &elf64_freebsd_brandnote, .flags = 0 }; Modified: head/sys/mips/mips/elf_machdep.c ============================================================================== --- head/sys/mips/mips/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/mips/mips/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -86,6 +86,7 @@ static Elf32_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, + .brand_note = &elf32_freebsd_brandnote, .flags = 0 }; Modified: head/sys/powerpc/powerpc/elf_machdep.c ============================================================================== --- head/sys/powerpc/powerpc/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/powerpc/powerpc/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -87,7 +87,8 @@ static Elf32_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(elf32, SI_SUB_EXEC, SI_ORDER_ANY, @@ -102,7 +103,8 @@ static Elf32_Brandinfo freebsd_brand_oin .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &elf32_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf32_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oelf32, SI_SUB_EXEC, SI_ORDER_ANY, Modified: head/sys/sparc64/sparc64/elf_machdep.c ============================================================================== --- head/sys/sparc64/sparc64/elf_machdep.c Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/sparc64/sparc64/elf_machdep.c Fri Mar 13 16:40:51 2009 (r189771) @@ -99,7 +99,8 @@ static Elf64_Brandinfo freebsd_brand_inf .interp_path = "/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf64_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_ANY, @@ -114,7 +115,8 @@ static Elf64_Brandinfo freebsd_brand_oin .interp_path = "/usr/libexec/ld-elf.so.1", .sysvec = &elf64_freebsd_sysvec, .interp_newpath = NULL, - .flags = BI_CAN_EXEC_DYN, + .brand_note = &elf64_freebsd_brandnote, + .flags = BI_CAN_EXEC_DYN }; SYSINIT(oelf64, SI_SUB_EXEC, SI_ORDER_ANY, Modified: head/sys/sys/imgact_elf.h ============================================================================== --- head/sys/sys/imgact_elf.h Fri Mar 13 16:30:33 2009 (r189770) +++ head/sys/sys/imgact_elf.h Fri Mar 13 16:40:51 2009 (r189771) @@ -55,6 +55,13 @@ typedef struct { } __ElfN(Auxargs); typedef struct { + Elf_Note hdr; + const char * vendor; + int flags; +#define BN_CAN_FETCH_OSREL 0x0001 +} Elf_Brandnote; + +typedef struct { int brand; int machine; const char *compat_3_brand; /* pre Binutils 2.10 method (FBSD 3) */ @@ -62,6 +69,7 @@ typedef struct { const char *interp_path; struct sysentvec *sysvec; const char *interp_newpath; + Elf_Brandnote *brand_note; int flags; #define BI_CAN_EXEC_DYN 0x0001 } __ElfN(Brandinfo); @@ -81,7 +89,7 @@ int __elfN(coredump)(struct thread *, st void __elfN(dump_thread)(struct thread *, void *, size_t *); extern int __elfN(fallback_brand); - +extern Elf_Brandnote __elfN(freebsd_brandnote); #endif /* _KERNEL */ #endif /* !_SYS_IMGACT_ELF_H_ */
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