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head/sys/kern/imgact_elf.c
| Show First 20 Lines • Show All 1,317 Lines • ▼ Show 20 Lines | |||||
| ret: | ret: | ||||
| if (free_interp) | if (free_interp) | ||||
| free(interp, M_TEMP); | free(interp, M_TEMP); | ||||
| return (error); | return (error); | ||||
| } | } | ||||
| #define suword __CONCAT(suword, __ELF_WORD_SIZE) | #define suword __CONCAT(suword, __ELF_WORD_SIZE) | ||||
| #ifdef __powerpc__ | |||||
| #define OLD_AT_NULL AT_NULL | |||||
| #define OLD_AT_IGNORE AT_IGNORE | |||||
| #define OLD_AT_EXECFD AT_EXECFD | |||||
| #define OLD_AT_PHDR AT_PHDR | |||||
| #define OLD_AT_PHENT AT_PHENT | |||||
| #define OLD_AT_PHNUM AT_PHNUM | |||||
| #define OLD_AT_PAGESZ AT_PAGESZ | |||||
| #define OLD_AT_BASE AT_BASE | |||||
| #define OLD_AT_FLAGS AT_FLAGS | |||||
| #define OLD_AT_ENTRY AT_ENTRY | |||||
| #define OLD_AT_NOTELF AT_NOTELF | |||||
| #define OLD_AT_UID AT_UID | |||||
| #define OLD_AT_EUID AT_EUID | |||||
| #define OLD_AT_EXECPATH 13 | |||||
| #define OLD_AT_CANARY 14 | |||||
| #define OLD_AT_CANARYLEN 15 | |||||
| #define OLD_AT_OSRELDATE 16 | |||||
| #define OLD_AT_NCPUS 17 | |||||
| #define OLD_AT_PAGESIZES 18 | |||||
| #define OLD_AT_PAGESIZESLEN 19 | |||||
| #define OLD_AT_STACKPROT 21 | |||||
| #define OLD_AT_TIMEKEEP AT_TIMEKEEP | |||||
| #define OLD_AT_EHDRFLAGS AT_EHDRFLAGS | |||||
| #define OLD_AT_HWCAP AT_HWCAP | |||||
| #define OLD_AT_HWCAP2 AT_HWCAP2 | |||||
| #define OLD_AT_COUNT 27 /* Count of defined aux entry types. */ | |||||
| static int | |||||
| __elfN(freebsd_fixup_old_auxargs)(register_t **stack_base, | |||||
| struct image_params *imgp) | |||||
| { | |||||
| Elf_Auxargs *args = (Elf_Auxargs *)imgp->auxargs; | |||||
| Elf_Auxinfo *argarray, *pos; | |||||
| Elf_Addr *base, *auxbase; | |||||
| int error; | |||||
| base = (Elf_Addr *)*stack_base; | |||||
| auxbase = base + imgp->args->argc + 1 + imgp->args->envc + 1; | |||||
| argarray = pos = malloc(OLD_AT_COUNT * sizeof(*pos), M_TEMP, | |||||
| M_WAITOK | M_ZERO); | |||||
| if (args->execfd != -1) | |||||
| AUXARGS_ENTRY(pos, OLD_AT_EXECFD, args->execfd); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_PHDR, args->phdr); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_PHENT, args->phent); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_PHNUM, args->phnum); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_PAGESZ, args->pagesz); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_FLAGS, args->flags); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_ENTRY, args->entry); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_BASE, args->base); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_EHDRFLAGS, args->hdr_eflags); | |||||
| if (imgp->execpathp != 0) | |||||
| AUXARGS_ENTRY(pos, OLD_AT_EXECPATH, imgp->execpathp); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_OSRELDATE, | |||||
| imgp->proc->p_ucred->cr_prison->pr_osreldate); | |||||
| if (imgp->canary != 0) { | |||||
| AUXARGS_ENTRY(pos, OLD_AT_CANARY, imgp->canary); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_CANARYLEN, imgp->canarylen); | |||||
| } | |||||
| AUXARGS_ENTRY(pos, OLD_AT_NCPUS, mp_ncpus); | |||||
| if (imgp->pagesizes != 0) { | |||||
| AUXARGS_ENTRY(pos, OLD_AT_PAGESIZES, imgp->pagesizes); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_PAGESIZESLEN, imgp->pagesizeslen); | |||||
| } | |||||
| if (imgp->sysent->sv_timekeep_base != 0) { | |||||
| AUXARGS_ENTRY(pos, OLD_AT_TIMEKEEP, | |||||
| imgp->sysent->sv_timekeep_base); | |||||
| } | |||||
| AUXARGS_ENTRY(pos, OLD_AT_STACKPROT, imgp->sysent->sv_shared_page_obj | |||||
| != NULL && imgp->stack_prot != 0 ? imgp->stack_prot : | |||||
| imgp->sysent->sv_stackprot); | |||||
| if (imgp->sysent->sv_hwcap != NULL) | |||||
| AUXARGS_ENTRY(pos, OLD_AT_HWCAP, *imgp->sysent->sv_hwcap); | |||||
| if (imgp->sysent->sv_hwcap2 != NULL) | |||||
| AUXARGS_ENTRY(pos, OLD_AT_HWCAP2, *imgp->sysent->sv_hwcap2); | |||||
| AUXARGS_ENTRY(pos, OLD_AT_NULL, 0); | |||||
| free(imgp->auxargs, M_TEMP); | |||||
| imgp->auxargs = NULL; | |||||
| KASSERT(pos - argarray <= OLD_AT_COUNT, ("Too many auxargs")); | |||||
| error = copyout(argarray, auxbase, sizeof(*argarray) * OLD_AT_COUNT); | |||||
| free(argarray, M_TEMP); | |||||
| if (error != 0) | |||||
| return (error); | |||||
| base--; | |||||
| if (suword(base, imgp->args->argc) == -1) | |||||
| return (EFAULT); | |||||
| *stack_base = (register_t *)base; | |||||
| return (0); | |||||
| } | |||||
| #endif /* __powerpc__ */ | |||||
| int | int | ||||
| __elfN(freebsd_copyout_auxargs)(struct image_params *imgp, uintptr_t base) | __elfN(freebsd_copyout_auxargs)(struct image_params *imgp, uintptr_t base) | ||||
| { | { | ||||
| Elf_Auxargs *args = (Elf_Auxargs *)imgp->auxargs; | Elf_Auxargs *args = (Elf_Auxargs *)imgp->auxargs; | ||||
| Elf_Auxinfo *argarray, *pos; | Elf_Auxinfo *argarray, *pos; | ||||
| int error; | int error; | ||||
| argarray = pos = malloc(AT_COUNT * sizeof(*pos), M_TEMP, | argarray = pos = malloc(AT_COUNT * sizeof(*pos), M_TEMP, | ||||
| ▲ Show 20 Lines • Show All 43 Lines • ▼ Show 20 Lines | __elfN(freebsd_copyout_auxargs)(struct image_params *imgp, uintptr_t base) | ||||
| free(argarray, M_TEMP); | free(argarray, M_TEMP); | ||||
| return (error); | return (error); | ||||
| } | } | ||||
| int | int | ||||
| __elfN(freebsd_fixup)(uintptr_t *stack_base, struct image_params *imgp) | __elfN(freebsd_fixup)(uintptr_t *stack_base, struct image_params *imgp) | ||||
| { | { | ||||
| Elf_Addr *base; | Elf_Addr *base; | ||||
| #ifdef __powerpc__ | |||||
| if (imgp->proc->p_osrel < P_OSREL_POWERPC_NEW_AUX_ARGS) | |||||
| return (__elfN(freebsd_fixup_old_auxargs)(stack_base, imgp)); | |||||
| #endif /* __powerpc__ */ | |||||
| base = (Elf_Addr *)*stack_base; | base = (Elf_Addr *)*stack_base; | ||||
| base--; | base--; | ||||
| if (suword(base, imgp->args->argc) == -1) | if (suword(base, imgp->args->argc) == -1) | ||||
| return (EFAULT); | return (EFAULT); | ||||
| *stack_base = (uintptr_t)base; | *stack_base = (uintptr_t)base; | ||||
| return (0); | return (0); | ||||
| } | } | ||||
| ▲ Show 20 Lines • Show All 1,375 Lines • Show Last 20 Lines | |||||