[mirror_ubuntu-kernels.git] / arch / parisc / kernel / binfmt_elf32.c

// 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"
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	/*
	3	* Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels
	4	*
	5	* Copyright (C) 2000 John Marvin
	6	* Copyright (C) 2000 Hewlett Packard Co.
	7	*
	8	* Heavily inspired from various other efforts to do the same thing
	9	* (ia64,sparc64/mips64)
	10	*/
	11
	12	/* Make sure include/asm-parisc/elf.h does the right thing */
	13
	14	#define ELF_CLASS ELFCLASS32
	15
	16	#define ELF_CORE_COPY_REGS(dst, pt) \
	17	memset(dst, 0, sizeof(dst)); /* don't leak any "random" bits */ \
	18	{ int i; \
	19	for (i = 0; i < 32; i++) dst[i] = (elf_greg_t) pt->gr[i]; \
	20	for (i = 0; i < 8; i++) dst[32 + i] = (elf_greg_t) pt->sr[i]; \
	21	} \
	22	dst[40] = (elf_greg_t) pt->iaoq[0]; dst[41] = (elf_greg_t) pt->iaoq[1]; \
	23	dst[42] = (elf_greg_t) pt->iasq[0]; dst[43] = (elf_greg_t) pt->iasq[1]; \
	24	dst[44] = (elf_greg_t) pt->sar; dst[45] = (elf_greg_t) pt->iir; \
	25	dst[46] = (elf_greg_t) pt->isr; dst[47] = (elf_greg_t) pt->ior; \
	26	dst[48] = (elf_greg_t) mfctl(22); dst[49] = (elf_greg_t) mfctl(0); \
	27	dst[50] = (elf_greg_t) mfctl(24); dst[51] = (elf_greg_t) mfctl(25); \
	28	dst[52] = (elf_greg_t) mfctl(26); dst[53] = (elf_greg_t) mfctl(27); \
	29	dst[54] = (elf_greg_t) mfctl(28); dst[55] = (elf_greg_t) mfctl(29); \
	30	dst[56] = (elf_greg_t) mfctl(30); dst[57] = (elf_greg_t) mfctl(31); \
	31	dst[58] = (elf_greg_t) mfctl( 8); dst[59] = (elf_greg_t) mfctl( 9); \
	32	dst[60] = (elf_greg_t) mfctl(12); dst[61] = (elf_greg_t) mfctl(13); \
	33	dst[62] = (elf_greg_t) mfctl(10); dst[63] = (elf_greg_t) mfctl(15);
	34
	35
	36	typedef unsigned int elf_greg_t;
	37
	38	#include <linux/spinlock.h>
	39	#include <asm/processor.h>
	40	#include <linux/module.h>
	41	#include <linux/elfcore.h>
	42	#include <linux/compat.h> /* struct compat_timeval */
	43
	44	#define elf_prstatus elf_prstatus32
	45	struct elf_prstatus32
	46	{
	47	struct elf_siginfo pr_info; /* Info associated with signal */
	48	short pr_cursig; /* Current signal */
	49	unsigned int pr_sigpend; /* Set of pending signals */
	50	unsigned int pr_sighold; /* Set of held signals */
	51	pid_t pr_pid;
	52	pid_t pr_ppid;
	53	pid_t pr_pgrp;
	54	pid_t pr_sid;
	55	struct compat_timeval pr_utime; /* User time */
	56	struct compat_timeval pr_stime; /* System time */
	57	struct compat_timeval pr_cutime; /* Cumulative user time */
	58	struct compat_timeval pr_cstime; /* Cumulative system time */
	59	elf_gregset_t pr_reg; /* GP registers */
	60	int pr_fpvalid; /* True if math co-processor being used. */
	61	};
	62
	63	#define elf_prpsinfo elf_prpsinfo32
	64	struct elf_prpsinfo32
	65	{
66	char pr_state; /* numeric process state */
67	char pr_sname; /* char for pr_state */
68	char pr_zomb; /* zombie */
69	char pr_nice; /* nice val */
70	unsigned int pr_flag; /* flags */
71	u16 pr_uid;
72	u16 pr_gid;
73	pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
74	/* Lots missing */
75	char pr_fname[16]; /* filename of executable */
76	char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
77	};
78
1da177e4 LT	79	#define init_elf_binfmt init_elf32_binfmt
	80
	81	#define ELF_PLATFORM ("PARISC32\0")
	82
	83	/*
	84	* We should probably use this macro to set a flag somewhere to indicate
	85	* this is a 32 on 64 process. We could use PER_LINUX_32BIT, or we
	86	* could set a processor dependent flag in the thread_struct.
	87	*/
	88
cf8e18ea	89	#undef SET_PERSONALITY
0b592682	90	#define SET_PERSONALITY(ex) \
df570b9c	91	set_thread_flag(TIF_32BIT); \
1da177e4 LT	92	current->thread.map_base = DEFAULT_MAP_BASE32; \
	93	current->thread.task_size = DEFAULT_TASK_SIZE32 \
	94
cd19c364 FW	95	#undef ns_to_timeval
cd19c364 FW	96	#define ns_to_timeval ns_to_compat_timeval
1da177e4 LT	97
1da177e4 LT	98	#include "../../../fs/binfmt_elf.c"