* This tricks binfmt_elf.c into loading 32bit binaries using lots
* of ugly preprocessor tricks. Talk about very very poor man's inheritance.
*/
-#define __ASM_X86_64_ELF_H 1
-
-#undef ELF_CLASS
-#define ELF_CLASS ELFCLASS32
#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/binfmts.h>
#include <linux/mm.h>
#include <linux/security.h>
+#include <linux/elfcore-compat.h>
#include <asm/segment.h>
#include <asm/ptrace.h>
#include <asm/ia32.h>
#include <asm/vsyscall32.h>
+#undef ELF_ARCH
+#undef ELF_CLASS
+#define ELF_CLASS ELFCLASS32
+#define ELF_ARCH EM_386
+
+#undef elfhdr
+#undef elf_phdr
+#undef elf_note
+#undef elf_addr_t
+#define elfhdr elf32_hdr
+#define elf_phdr elf32_phdr
+#define elf_note elf32_note
+#define elf_addr_t Elf32_Off
+
#define ELF_NAME "elf/i386"
#define AT_SYSINFO 32
} while(0)
struct file;
-struct elf_phdr;
#define IA32_EMULATOR 1
-#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
-
-#undef ELF_ARCH
-#define ELF_ARCH EM_386
-
-#define ELF_DATA ELFDATA2LSB
+#undef ELF_ET_DYN_BASE
-#define USE_ELF_CORE_DUMP 1
-
-/* Override elfcore.h */
-#define _LINUX_ELFCORE_H 1
-typedef unsigned int elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-struct elf_siginfo
-{
- int si_signo; /* signal number */
- int si_code; /* extra code */
- int si_errno; /* errno */
-};
+#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
#define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)
-struct elf_prstatus
-{
- struct elf_siginfo pr_info; /* Info associated with signal */
- short pr_cursig; /* Current signal */
- unsigned int pr_sigpend; /* Set of pending signals */
- unsigned int pr_sighold; /* Set of held signals */
- pid_t pr_pid;
- pid_t pr_ppid;
- pid_t pr_pgrp;
- pid_t pr_sid;
- struct compat_timeval pr_utime; /* User time */
- struct compat_timeval pr_stime; /* System time */
- struct compat_timeval pr_cutime; /* Cumulative user time */
- struct compat_timeval pr_cstime; /* Cumulative system time */
- elf_gregset_t pr_reg; /* GP registers */
- int pr_fpvalid; /* True if math co-processor being used. */
-};
-
-#define ELF_PRARGSZ (80) /* Number of chars for args */
-
-struct elf_prpsinfo
-{
- char pr_state; /* numeric process state */
- char pr_sname; /* char for pr_state */
- char pr_zomb; /* zombie */
- char pr_nice; /* nice val */
- unsigned int pr_flag; /* flags */
- __u16 pr_uid;
- __u16 pr_gid;
- pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
- /* Lots missing */
- char pr_fname[16]; /* filename of executable */
- char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
-};
-
#define _GET_SEG(x) \
({ __u32 seg; asm("movl %%" __stringify(x) ",%0" : "=r"(seg)); seg; })
/* Assumes current==process to be dumped */
+#undef ELF_CORE_COPY_REGS
#define ELF_CORE_COPY_REGS(pr_reg, regs) \
pr_reg[0] = regs->rbx; \
pr_reg[1] = regs->rcx; \
pr_reg[15] = regs->rsp; \
pr_reg[16] = regs->ss;
-#define user user32
+
+#define elf_prstatus compat_elf_prstatus
+#define elf_prpsinfo compat_elf_prpsinfo
+#define elf_fpregset_t struct user_i387_ia32_struct
+#define elf_fpxregset_t struct user32_fxsr_struct
+#define user user32
#undef elf_read_implies_exec
#define elf_read_implies_exec(ex, executable_stack) (executable_stack != EXSTACK_DISABLE_X)
-//#include <asm/ia32.h>
-#include <linux/elf.h>
-
-typedef struct user_i387_ia32_struct elf_fpregset_t;
-typedef struct user32_fxsr_struct elf_fpxregset_t;
-
-static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
+#define elf_core_copy_regs elf32_core_copy_regs
+static inline void elf32_core_copy_regs(compat_elf_gregset_t *elfregs,
+ struct pt_regs *regs)
{
- ELF_CORE_COPY_REGS((*elfregs), regs)
+ ELF_CORE_COPY_REGS((&elfregs->ebx), regs)
}
-static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
+#define elf_core_copy_task_regs elf32_core_copy_task_regs
+static inline int elf32_core_copy_task_regs(struct task_struct *t,
+ compat_elf_gregset_t* elfregs)
{
struct pt_regs *pp = task_pt_regs(t);
- ELF_CORE_COPY_REGS((*elfregs), pp);
+ ELF_CORE_COPY_REGS((&elfregs->ebx), pp);
/* fix wrong segments */
- (*elfregs)[7] = t->thread.ds;
- (*elfregs)[9] = t->thread.fsindex;
- (*elfregs)[10] = t->thread.gsindex;
- (*elfregs)[8] = t->thread.es;
+ elfregs->ds = t->thread.ds;
+ elfregs->fs = t->thread.fsindex;
+ elfregs->gs = t->thread.gsindex;
+ elfregs->es = t->thread.es;
return 1;
}
+#define elf_core_copy_task_fpregs elf32_core_copy_task_fpregs
static inline int
-elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
+elf32_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs,
+ elf_fpregset_t *fpu)
{
struct _fpstate_ia32 *fpstate = (void*)fpu;
mm_segment_t oldfs = get_fs();
#define ELF_CORE_COPY_XFPREGS 1
#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
+#define elf_core_copy_task_xfpregs elf32_core_copy_task_xfpregs
static inline int
-elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
+elf32_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
{
struct pt_regs *regs = task_pt_regs(t);
if (!tsk_used_math(t))
extern int force_personality32;
+#undef ELF_EXEC_PAGESIZE
+#undef ELF_HWCAP
+#undef ELF_PLATFORM
+#undef SET_PERSONALITY
#define ELF_EXEC_PAGESIZE PAGE_SIZE
#define ELF_HWCAP (boot_cpu_data.x86_capability[0])
#define ELF_PLATFORM ("i686")
#define load_elf_binary load_elf32_binary
+#undef ELF_PLAT_INIT
#define ELF_PLAT_INIT(r, load_addr) elf32_init(r)
#undef start_thread
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