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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels
- *
- * Copyright (C) 2000 John Marvin
- * Copyright (C) 2000 Hewlett Packard Co.
- *
- * Heavily inspired from various other efforts to do the same thing
- * (ia64,sparc64/mips64)
- */
- /* Make sure include/asm-parisc/elf.h does the right thing */
- #define ELF_CLASS ELFCLASS32
- #define ELF_CORE_COPY_REGS(dst, pt) \
- memset(dst, 0, sizeof(dst)); /* don't leak any "random" bits */ \
- { int i; \
- for (i = 0; i < 32; i++) dst[i] = (elf_greg_t) pt->gr[i]; \
- for (i = 0; i < 8; i++) dst[32 + i] = (elf_greg_t) pt->sr[i]; \
- } \
- dst[40] = (elf_greg_t) pt->iaoq[0]; dst[41] = (elf_greg_t) pt->iaoq[1]; \
- dst[42] = (elf_greg_t) pt->iasq[0]; dst[43] = (elf_greg_t) pt->iasq[1]; \
- dst[44] = (elf_greg_t) pt->sar; dst[45] = (elf_greg_t) pt->iir; \
- dst[46] = (elf_greg_t) pt->isr; dst[47] = (elf_greg_t) pt->ior; \
- dst[48] = (elf_greg_t) mfctl(22); dst[49] = (elf_greg_t) mfctl(0); \
- dst[50] = (elf_greg_t) mfctl(24); dst[51] = (elf_greg_t) mfctl(25); \
- dst[52] = (elf_greg_t) mfctl(26); dst[53] = (elf_greg_t) mfctl(27); \
- dst[54] = (elf_greg_t) mfctl(28); dst[55] = (elf_greg_t) mfctl(29); \
- dst[56] = (elf_greg_t) mfctl(30); dst[57] = (elf_greg_t) mfctl(31); \
- dst[58] = (elf_greg_t) mfctl( 8); dst[59] = (elf_greg_t) mfctl( 9); \
- dst[60] = (elf_greg_t) mfctl(12); dst[61] = (elf_greg_t) mfctl(13); \
- dst[62] = (elf_greg_t) mfctl(10); dst[63] = (elf_greg_t) mfctl(15);
- typedef unsigned int elf_greg_t;
- #include <linux/spinlock.h>
- #include <asm/processor.h>
- #include <linux/module.h>
- #include <linux/elfcore.h>
- #include <linux/compat.h> /* struct compat_timeval */
- #define elf_prstatus elf_prstatus32
- struct elf_prstatus32
- {
- 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_prpsinfo elf_prpsinfo32
- struct elf_prpsinfo32
- {
- 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 init_elf_binfmt init_elf32_binfmt
- #define ELF_PLATFORM ("PARISC32\0")
- /*
- * We should probably use this macro to set a flag somewhere to indicate
- * this is a 32 on 64 process. We could use PER_LINUX_32BIT, or we
- * could set a processor dependent flag in the thread_struct.
- */
- #undef SET_PERSONALITY
- #define SET_PERSONALITY(ex) \
- set_thread_flag(TIF_32BIT); \
- current->thread.map_base = DEFAULT_MAP_BASE32; \
- current->thread.task_size = DEFAULT_TASK_SIZE32 \
- #undef ns_to_timeval
- #define ns_to_timeval ns_to_compat_timeval
- #include "../../../fs/binfmt_elf.c"
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