diff options
Diffstat (limited to 'include/asm-um')
| -rw-r--r-- | include/asm-um/a.out.h | 2 | ||||
| -rw-r--r-- | include/asm-um/common.lds.S | 124 | ||||
| -rw-r--r-- | include/asm-um/elf-x86_64.h | 40 | ||||
| -rw-r--r-- | include/asm-um/pgtable.h | 18 | ||||
| -rw-r--r-- | include/asm-um/thread_info.h | 15 |
5 files changed, 132 insertions, 67 deletions
diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h index 7016b893ac9d..78bc9eed26b2 100644 --- a/include/asm-um/a.out.h +++ b/include/asm-um/a.out.h @@ -17,4 +17,6 @@ extern int honeypot; #define STACK_TOP \ CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size) +#define STACK_TOP_MAX STACK_TOP + #endif diff --git a/include/asm-um/common.lds.S b/include/asm-um/common.lds.S index e3f010bd12b3..cb0248616d49 100644 --- a/include/asm-um/common.lds.S +++ b/include/asm-um/common.lds.S @@ -16,82 +16,112 @@ . = ALIGN(4096); .note : { *(.note.*) } - __start___ex_table = .; - __ex_table : { *(__ex_table) } - __stop___ex_table = .; + __ex_table : { + __start___ex_table = .; + *(__ex_table) + __stop___ex_table = .; + } BUG_TABLE - __uml_setup_start = .; - .uml.setup.init : { *(.uml.setup.init) } - __uml_setup_end = .; + .uml.setup.init : { + __uml_setup_start = .; + *(.uml.setup.init) + __uml_setup_end = .; + } - __uml_help_start = .; - .uml.help.init : { *(.uml.help.init) } - __uml_help_end = .; + .uml.help.init : { + __uml_help_start = .; + *(.uml.help.init) + __uml_help_end = .; + } - __uml_postsetup_start = .; - .uml.postsetup.init : { *(.uml.postsetup.init) } - __uml_postsetup_end = .; + .uml.postsetup.init : { + __uml_postsetup_start = .; + *(.uml.postsetup.init) + __uml_postsetup_end = .; + } - __setup_start = .; - .init.setup : { *(.init.setup) } - __setup_end = .; + .init.setup : { + __setup_start = .; + *(.init.setup) + __setup_end = .; + } . = ALIGN(32); - __per_cpu_start = . ; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = . ; + .data.percpu : { + __per_cpu_start = . ; + *(.data.percpu) + __per_cpu_end = . ; + } - __initcall_start = .; .initcall.init : { + __initcall_start = .; INITCALLS + __initcall_end = .; } - __initcall_end = .; - __con_initcall_start = .; - .con_initcall.init : { *(.con_initcall.init) } - __con_initcall_end = .; + .con_initcall.init : { + __con_initcall_start = .; + *(.con_initcall.init) + __con_initcall_end = .; + } - __uml_initcall_start = .; - .uml.initcall.init : { *(.uml.initcall.init) } - __uml_initcall_end = .; + .uml.initcall.init : { + __uml_initcall_start = .; + *(.uml.initcall.init) + __uml_initcall_end = .; + } __init_end = .; SECURITY_INIT - __exitcall_begin = .; - .exitcall : { *(.exitcall.exit) } - __exitcall_end = .; + .exitcall : { + __exitcall_begin = .; + *(.exitcall.exit) + __exitcall_end = .; + } - __uml_exitcall_begin = .; - .uml.exitcall : { *(.uml.exitcall.exit) } - __uml_exitcall_end = .; + .uml.exitcall : { + __uml_exitcall_begin = .; + *(.uml.exitcall.exit) + __uml_exitcall_end = .; + } . = ALIGN(4); - __alt_instructions = .; - .altinstructions : { *(.altinstructions) } - __alt_instructions_end = .; + .altinstructions : { + __alt_instructions = .; + *(.altinstructions) + __alt_instructions_end = .; + } .altinstr_replacement : { *(.altinstr_replacement) } /* .exit.text is discard at runtime, not link time, to deal with references from .altinstructions and .eh_frame */ .exit.text : { *(.exit.text) } .exit.data : { *(.exit.data) } - __preinit_array_start = .; - .preinit_array : { *(.preinit_array) } - __preinit_array_end = .; - __init_array_start = .; - .init_array : { *(.init_array) } - __init_array_end = .; - __fini_array_start = .; - .fini_array : { *(.fini_array) } - __fini_array_end = .; + .preinit_array : { + __preinit_array_start = .; + *(.preinit_array) + __preinit_array_end = .; + } + .init_array : { + __init_array_start = .; + *(.init_array) + __init_array_end = .; + } + .fini_array : { + __fini_array_start = .; + *(.fini_array) + __fini_array_end = .; + } . = ALIGN(4096); - __initramfs_start = .; - .init.ramfs : { *(.init.ramfs) } - __initramfs_end = .; + .init.ramfs : { + __initramfs_start = .; + *(.init.ramfs) + __initramfs_end = .; + } /* Sections to be discarded */ /DISCARD/ : { diff --git a/include/asm-um/elf-x86_64.h b/include/asm-um/elf-x86_64.h index 8a8246d03936..857471c49dac 100644 --- a/include/asm-um/elf-x86_64.h +++ b/include/asm-um/elf-x86_64.h @@ -6,7 +6,9 @@ #ifndef __UM_ELF_X86_64_H #define __UM_ELF_X86_64_H +#include <linux/sched.h> #include <asm/user.h> +#include "skas.h" /* x86-64 relocation types, taken from asm-x86_64/elf.h */ #define R_X86_64_NONE 0 /* No reloc */ @@ -64,6 +66,44 @@ typedef struct { } elf_fpregset_t; PT_REGS_R15(regs) = 0; \ } while (0) +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ + (pr_reg)[0] = (regs)->regs.skas.regs[0]; \ + (pr_reg)[1] = (regs)->regs.skas.regs[1]; \ + (pr_reg)[2] = (regs)->regs.skas.regs[2]; \ + (pr_reg)[3] = (regs)->regs.skas.regs[3]; \ + (pr_reg)[4] = (regs)->regs.skas.regs[4]; \ + (pr_reg)[5] = (regs)->regs.skas.regs[5]; \ + (pr_reg)[6] = (regs)->regs.skas.regs[6]; \ + (pr_reg)[7] = (regs)->regs.skas.regs[7]; \ + (pr_reg)[8] = (regs)->regs.skas.regs[8]; \ + (pr_reg)[9] = (regs)->regs.skas.regs[9]; \ + (pr_reg)[10] = (regs)->regs.skas.regs[10]; \ + (pr_reg)[11] = (regs)->regs.skas.regs[11]; \ + (pr_reg)[12] = (regs)->regs.skas.regs[12]; \ + (pr_reg)[13] = (regs)->regs.skas.regs[13]; \ + (pr_reg)[14] = (regs)->regs.skas.regs[14]; \ + (pr_reg)[15] = (regs)->regs.skas.regs[15]; \ + (pr_reg)[16] = (regs)->regs.skas.regs[16]; \ + (pr_reg)[17] = (regs)->regs.skas.regs[17]; \ + (pr_reg)[18] = (regs)->regs.skas.regs[18]; \ + (pr_reg)[19] = (regs)->regs.skas.regs[19]; \ + (pr_reg)[20] = (regs)->regs.skas.regs[20]; \ + (pr_reg)[21] = current->thread.arch.fs; \ + (pr_reg)[22] = 0; \ + (pr_reg)[23] = 0; \ + (pr_reg)[24] = 0; \ + (pr_reg)[25] = 0; \ + (pr_reg)[26] = 0; + +static inline int elf_core_copy_fpregs(struct task_struct *t, + elf_fpregset_t *fpu) +{ + int cpu = current_thread->cpu; + return save_fp_registers(userspace_pid[cpu], (unsigned long *) fpu); +} + +#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu) + #ifdef TIF_IA32 /* XXX */ #error XXX, indeed clear_thread_flag(TIF_IA32); diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index 1b1090a91a58..830fc6e5d49d 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h @@ -175,12 +175,6 @@ static inline int pte_none(pte_t pte) * The following only work if pte_present() is true. * Undefined behaviour if not.. */ -static inline int pte_user(pte_t pte) -{ - return((pte_get_bits(pte, _PAGE_USER)) && - !(pte_get_bits(pte, _PAGE_PROTNONE))); -} - static inline int pte_read(pte_t pte) { return((pte_get_bits(pte, _PAGE_USER)) && @@ -238,18 +232,6 @@ static inline pte_t pte_mknewprot(pte_t pte) return(pte); } -static inline pte_t pte_rdprotect(pte_t pte) -{ - pte_clear_bits(pte, _PAGE_USER); - return(pte_mknewprot(pte)); -} - -static inline pte_t pte_exprotect(pte_t pte) -{ - pte_clear_bits(pte, _PAGE_USER); - return(pte_mknewprot(pte)); -} - static inline pte_t pte_mkclean(pte_t pte) { pte_clear_bits(pte, _PAGE_DIRTY); diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h index 18a13ba74605..6e5fd5c892d0 100644 --- a/include/asm-um/thread_info.h +++ b/include/asm-um/thread_info.h @@ -52,10 +52,21 @@ static inline struct thread_info *current_thread_info(void) return ti; } +#ifdef CONFIG_DEBUG_STACK_USAGE + +#define alloc_thread_info(tsk) \ + ((struct thread_info *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, \ + CONFIG_KERNEL_STACK_ORDER)) +#else + /* thread information allocation */ #define alloc_thread_info(tsk) \ - ((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL)) -#define free_thread_info(ti) kfree(ti) + ((struct thread_info *) __get_free_pages(GFP_KERNEL, \ + CONFIG_KERNEL_STACK_ORDER)) +#endif + +#define free_thread_info(ti) \ + free_pages((unsigned long)(ti),CONFIG_KERNEL_STACK_ORDER) #endif |