diff options
| -rw-r--r-- | arch/powerpc/kernel/binfmt_elf32.c | 67 | ||||
| -rw-r--r-- | include/asm-powerpc/elf.h | 38 |
2 files changed, 51 insertions, 54 deletions
diff --git a/arch/powerpc/kernel/binfmt_elf32.c b/arch/powerpc/kernel/binfmt_elf32.c index 5cb58757e1b1..1d45d7782d4e 100644 --- a/arch/powerpc/kernel/binfmt_elf32.c +++ b/arch/powerpc/kernel/binfmt_elf32.c @@ -13,49 +13,44 @@ * 2 of the License, or (at your option) any later version. */ -#define ELF_ARCH EM_PPC -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB; - #include <asm/processor.h> #include <linux/module.h> -#include <linux/elfcore.h> #include <linux/compat.h> +#include <linux/elfcore-compat.h> + +#undef ELF_ARCH +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 +#define ELF_ARCH EM_PPC + +#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_prstatus elf_prstatus32 -struct elf_prstatus32 +#define elf_prstatus compat_elf_prstatus +#define elf_prpsinfo compat_elf_prpsinfo + +#define elf_core_copy_regs compat_elf_core_copy_regs +static inline void compat_elf_core_copy_regs(compat_elf_gregset_t *elf_regs, + struct pt_regs *regs) { - 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; /* General purpose registers. */ - int pr_fpvalid; /* True if math co-processor being used. */ -}; + PPC_ELF_CORE_COPY_REGS((*elf_regs), regs); +} -#define elf_prpsinfo elf_prpsinfo32 -struct elf_prpsinfo32 +#define elf_core_copy_task_regs compat_elf_core_copy_task_regs +static int compat_elf_core_copy_task_regs(struct task_struct *tsk, + compat_elf_gregset_t *elf_regs) { - 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 */ - u32 pr_uid; - u32 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 */ -}; + struct pt_regs *regs = tsk->thread.regs; + if (regs) + compat_elf_core_copy_regs(elf_regs, regs); + return 1; +} #include <linux/time.h> diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h index 5b9e3f41d649..8925c2813667 100644 --- a/include/asm-powerpc/elf.h +++ b/include/asm-powerpc/elf.h @@ -101,6 +101,7 @@ typedef elf_greg_t64 elf_gregset_t64[ELF_NGREG]; typedef unsigned int elf_greg_t32; typedef elf_greg_t32 elf_gregset_t32[ELF_NGREG]; +typedef elf_gregset_t32 compat_elf_gregset_t; /* * ELF_ARCH, CLASS, and DATA are used to set parameters in the core dumps. @@ -175,26 +176,27 @@ typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32]; #define ELF_ET_DYN_BASE (0x20000000) -/* Common routine for both 32-bit and 64-bit processes */ +/* + * Our registers are always unsigned longs, whether we're a 32 bit + * process or 64 bit, on either a 64 bit or 32 bit kernel. + * + * This macro relies on elf_regs[i] having the right type to truncate to, + * either u32 or u64. It defines the body of the elf_core_copy_regs + * function, either the native one with elf_gregset_t elf_regs or + * the 32-bit one with elf_gregset_t32 elf_regs. + */ +#define PPC_ELF_CORE_COPY_REGS(elf_regs, regs) \ + int i, nregs = min(sizeof(*regs) / sizeof(unsigned long), \ + (size_t)ELF_NGREG); \ + for (i = 0; i < nregs; i++) \ + elf_regs[i] = ((unsigned long *) regs)[i]; \ + memset(&elf_regs[i], 0, (ELF_NGREG - i) * sizeof(elf_regs[0])) + +/* Common routine for both 32-bit and 64-bit native processes */ static inline void ppc_elf_core_copy_regs(elf_gregset_t elf_regs, - struct pt_regs *regs) + struct pt_regs *regs) { - int i, nregs; - - memset((void *)elf_regs, 0, sizeof(elf_gregset_t)); - - /* Our registers are always unsigned longs, whether we're a 32 bit - * process or 64 bit, on either a 64 bit or 32 bit kernel. - * Don't use ELF_GREG_TYPE here. */ - nregs = sizeof(struct pt_regs) / sizeof(unsigned long); - if (nregs > ELF_NGREG) - nregs = ELF_NGREG; - - for (i = 0; i < nregs; i++) { - /* This will correctly truncate 64 bit registers to 32 bits - * for a 32 bit process on a 64 bit kernel. */ - elf_regs[i] = (elf_greg_t)((ELF_GREG_TYPE *)regs)[i]; - } + PPC_ELF_CORE_COPY_REGS(elf_regs, regs); } #define ELF_CORE_COPY_REGS(gregs, regs) ppc_elf_core_copy_regs(gregs, regs); |