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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