diff options
Diffstat (limited to 'sys/amd64/linux32/linux32_sysvec.c')
| -rw-r--r-- | sys/amd64/linux32/linux32_sysvec.c | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c index 77186a1..54a04ee 100644 --- a/sys/amd64/linux32/linux32_sysvec.c +++ b/sys/amd64/linux32/linux32_sysvec.c @@ -127,6 +127,7 @@ static void linux_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask); static void exec_linux_setregs(struct thread *td, u_long entry, u_long stack, u_long ps_strings); static void linux32_fixlimit(struct rlimit *rl, int which); +static boolean_t linux32_trans_osrel(const Elf_Note *note, int32_t *osrel); static eventhandler_tag linux_exit_tag; static eventhandler_tag linux_schedtail_tag; @@ -1066,14 +1067,38 @@ struct sysentvec elf_linux_sysvec = { .sv_flags = SV_ABI_LINUX | SV_ILP32 | SV_IA32 }; -static char GNULINUX_ABI_VENDOR[] = "GNU"; +static char GNU_ABI_VENDOR[] = "GNU"; +static int GNULINUX_ABI_DESC = 0; + +static boolean_t +linux32_trans_osrel(const Elf_Note *note, int32_t *osrel) +{ + const Elf32_Word *desc; + uintptr_t p; + + p = (uintptr_t)(note + 1); + p += roundup2(note->n_namesz, sizeof(Elf32_Addr)); + + desc = (const Elf32_Word *)p; + if (desc[0] != GNULINUX_ABI_DESC) + return (FALSE); + + /* + * For linux we encode osrel as follows (see linux_mib.c): + * VVVMMMIII (version, major, minor), see linux_mib.c. + */ + *osrel = desc[1] * 1000000 + desc[2] * 1000 + desc[3]; + + return (TRUE); +} static Elf_Brandnote linux32_brandnote = { - .hdr.n_namesz = sizeof(GNULINUX_ABI_VENDOR), - .hdr.n_descsz = 16, + .hdr.n_namesz = sizeof(GNU_ABI_VENDOR), + .hdr.n_descsz = 16, /* XXX at least 16 */ .hdr.n_type = 1, - .vendor = GNULINUX_ABI_VENDOR, - .flags = 0 + .vendor = GNU_ABI_VENDOR, + .flags = BN_TRANSLATE_OSREL, + .trans_osrel = linux32_trans_osrel }; static Elf32_Brandinfo linux_brand = { |
