diff options
| -rw-r--r-- | sys/kern/imgact_elf.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index bde590c..f907526 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -1549,32 +1549,14 @@ __elfN(putnote)(void *dst, size_t *off, const char *name, int type, *off += roundup2(note.n_descsz, sizeof(Elf_Size)); } -/* - * 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) +__elfN(parse_notes)(struct image_params *imgp, Elf_Brandnote *checknote, + int32_t *osrel, const Elf_Phdr *pnote) { const Elf_Note *note, *note0, *note_end; - const Elf_Phdr *phdr, *pnote; - const Elf_Ehdr *hdr; const char *note_name; int i; - pnote = NULL; - hdr = (const Elf_Ehdr *)imgp->image_header; - phdr = (const Elf_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); @@ -1613,6 +1595,31 @@ nextnote: } /* + * 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_Phdr *phdr; + const Elf_Ehdr *hdr; + int i; + + hdr = (const Elf_Ehdr *)imgp->image_header; + phdr = (const Elf_Phdr *)(imgp->image_header + hdr->e_phoff); + + for (i = 0; i < hdr->e_phnum; i++) { + if (phdr[i].p_type == PT_NOTE && + __elfN(parse_notes)(imgp, checknote, osrel, &phdr[i])) + return (TRUE); + } + return (FALSE); + +} + +/* * Tell kern_execve.c about it, with a little help from the linker. */ static struct execsw __elfN(execsw) = { |
