1 files changed, 215 insertions, 0 deletions
diff --git a/include/asm-s390/elf.h b/include/asm-s390/elf.h
new file mode 100644
index 000000000000..3b8bd46832a1
--- /dev/null
+++ b/include/asm-s390/elf.h
@@ -0,0 +1,215 @@
+/*
+ *  include/asm-s390/elf.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/elf.h"
+ */
+#ifndef __ASMS390_ELF_H
+#define __ASMS390_ELF_H
+/* s390 relocations defined by the ABIs */
+#define R_390_NONE              0       /* No reloc.  */
+#define R_390_8                 1       /* Direct 8 bit.  */
+#define R_390_12                2       /* Direct 12 bit.  */
+#define R_390_16                3       /* Direct 16 bit.  */
+#define R_390_32                4       /* Direct 32 bit.  */
+#define R_390_PC32              5       /* PC relative 32 bit.  */
+#define R_390_GOT12             6       /* 12 bit GOT offset.  */
+#define R_390_GOT32             7       /* 32 bit GOT offset.  */
+#define R_390_PLT32             8       /* 32 bit PC relative PLT address.  */
+#define R_390_COPY              9       /* Copy symbol at runtime.  */
+#define R_390_GLOB_DAT          10      /* Create GOT entry.  */
+#define R_390_JMP_SLOT          11      /* Create PLT entry.  */
+#define R_390_RELATIVE          12      /* Adjust by program base.  */
+#define R_390_GOTOFF32          13      /* 32 bit offset to GOT.         */
+#define R_390_GOTPC             14      /* 32 bit PC rel. offset to GOT.  */
+#define R_390_GOT16             15      /* 16 bit GOT offset.  */
+#define R_390_PC16              16      /* PC relative 16 bit.  */
+#define R_390_PC16DBL           17      /* PC relative 16 bit shifted by 1.  */
+#define R_390_PLT16DBL          18      /* 16 bit PC rel. PLT shifted by 1.  */
+#define R_390_PC32DBL           19      /* PC relative 32 bit shifted by 1.  */
+#define R_390_PLT32DBL          20      /* 32 bit PC rel. PLT shifted by 1.  */
+#define R_390_GOTPCDBL          21      /* 32 bit PC rel. GOT shifted by 1.  */
+#define R_390_64                22      /* Direct 64 bit.  */
+#define R_390_PC64              23      /* PC relative 64 bit.  */
+#define R_390_GOT64             24      /* 64 bit GOT offset.  */
+#define R_390_PLT64             25      /* 64 bit PC relative PLT address.  */
+#define R_390_GOTENT            26      /* 32 bit PC rel. to GOT entry >> 1. */
+#define R_390_GOTOFF16          27      /* 16 bit offset to GOT. */
+#define R_390_GOTOFF64          28      /* 64 bit offset to GOT. */
+#define R_390_GOTPLT12          29      /* 12 bit offset to jump slot.  */
+#define R_390_GOTPLT16          30      /* 16 bit offset to jump slot.  */
+#define R_390_GOTPLT32          31      /* 32 bit offset to jump slot.  */
+#define R_390_GOTPLT64          32      /* 64 bit offset to jump slot.  */
+#define R_390_GOTPLTENT         33      /* 32 bit rel. offset to jump slot.  */
+#define R_390_PLTOFF16          34      /* 16 bit offset from GOT to PLT. */
+#define R_390_PLTOFF32          35      /* 32 bit offset from GOT to PLT. */
+#define R_390_PLTOFF64          36      /* 16 bit offset from GOT to PLT. */
+#define R_390_TLS_LOAD          37      /* Tag for load insn in TLS code. */
+#define R_390_TLS_GDCALL        38      /* Tag for function call in general
+                                           dynamic TLS code.  */
+#define R_390_TLS_LDCALL        39      /* Tag for function call in local
+                                           dynamic TLS code.  */
+#define R_390_TLS_GD32          40      /* Direct 32 bit for general dynamic
+                                           thread local data.  */
+#define R_390_TLS_GD64          41      /* Direct 64 bit for general dynamic
+                                           thread local data.  */
+#define R_390_TLS_GOTIE12       42      /* 12 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_GOTIE32       43      /* 32 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_GOTIE64       44      /* 64 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_LDM32         45      /* Direct 32 bit for local dynamic
+                                           thread local data in LD code.  */
+#define R_390_TLS_LDM64         46      /* Direct 64 bit for local dynamic
+                                           thread local data in LD code.  */
+#define R_390_TLS_IE32          47      /* 32 bit address of GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_IE64          48      /* 64 bit address of GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_IEENT         49      /* 32 bit rel. offset to GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_LE32          50      /* 32 bit negated offset relative to
+                                           static TLS block.  */
+#define R_390_TLS_LE64          51      /* 64 bit negated offset relative to
+                                           static TLS block.  */
+#define R_390_TLS_LDO32         52      /* 32 bit offset relative to TLS
+                                           block.  */
+#define R_390_TLS_LDO64         53      /* 64 bit offset relative to TLS
+                                           block.  */
+#define R_390_TLS_DTPMOD        54      /* ID of module containing symbol.  */
+#define R_390_TLS_DTPOFF        55      /* Offset in TLS block.  */
+#define R_390_TLS_TPOFF         56      /* Negate offset in static TLS
+                                           block.  */
+#define R_390_20                57      /* Direct 20 bit.  */
+#define R_390_GOT20             58      /* 20 bit GOT offset.  */
+#define R_390_GOTPLT20          59      /* 20 bit offset to jump slot.  */
+#define R_390_TLS_GOTIE20       60      /* 20 bit GOT offset for static TLS
+                                           block offset.  */
+/* Keep this the last entry.  */
+#define R_390_NUM       61
+/*
+ * ELF register definitions..
+ */
+#include <asm/ptrace.h>
+#include <asm/user.h>
+#include <asm/system.h>         /* for save_access_regs */
+typedef s390_fp_regs elf_fpregset_t;
+typedef s390_regs elf_gregset_t;
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#ifndef __s390x__
+#define ELF_CLASS       ELFCLASS32
+#else /* __s390x__ */
+#define ELF_CLASS       ELFCLASS64
+#endif /* __s390x__ */
+#define ELF_DATA        ELFDATA2MSB
+#define ELF_ARCH        EM_S390
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) \
+        (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \
+         && (x)->e_ident[EI_CLASS] == ELF_CLASS) 
+/* For SVR4/S390 the function pointer to be registered with `atexit` is
+   passed in R14. */
+#define ELF_PLAT_INIT(_r, load_addr) \
+        do { \
+                _r->gprs[14] = 0; \
+        } while (0)
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+#ifndef __s390x__
+#define ELF_ET_DYN_BASE         ((TASK_SIZE & 0x80000000) \
+                                ? TASK_SIZE / 3 * 2 \
+                                : 2 * TASK_SIZE / 3)
+#else /* __s390x__ */
+#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
+#endif /* __s390x__ */
+/* Wow, the "main" arch needs arch dependent functions too.. :) */
+/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+   now struct_user_regs, they are different) */
+static inline int dump_regs(struct pt_regs *ptregs, elf_gregset_t *regs)
+{
+        memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
+        save_access_regs(regs->acrs);
+        regs->orig_gpr2 = ptregs->orig_gpr2;
+        return 1;
+}
+#define ELF_CORE_COPY_REGS(pr_reg, regs) dump_regs(regs, &pr_reg);
+static inline int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
+{
+        struct pt_regs *ptregs = __KSTK_PTREGS(tsk);
+        memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
+        memcpy(regs->acrs, tsk->thread.acrs, sizeof(regs->acrs));
+        regs->orig_gpr2 = ptregs->orig_gpr2;
+        return 1;
+}
+#define ELF_CORE_COPY_TASK_REGS(tsk, regs) dump_task_regs(tsk, regs)
+static inline int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
+{
+        if (tsk == current)
+                save_fp_regs(fpregs);
+        else
+                memcpy(fpregs, &tsk->thread.fp_regs, sizeof(elf_fpregset_t));
+        return 1;
+}
+#define ELF_CORE_COPY_FPREGS(tsk, fpregs) dump_task_fpu(tsk, fpregs)
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports. */
+#define ELF_HWCAP (0)
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.
+   For the moment, we have only optimizations for the Intel generations,
+   but that could change... */
+#define ELF_PLATFORM (NULL)
+#ifdef __KERNEL__
+#ifndef __s390x__
+#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
+#else /* __s390x__ */
+#define SET_PERSONALITY(ex, ibcs2)                      \
+do {                                                    \
+        if (ibcs2)                                      \
+                set_personality(PER_SVR4);              \
+        else if (current->personality != PER_LINUX32)   \
+                set_personality(PER_LINUX);             \
+        clear_thread_flag(TIF_31BIT);                   \
+} while (0)
+#endif /* __s390x__ */
+#endif
+#endif

diff --git a/include/asm-s390/elf.h b/include/asm-s390/elf.h new file mode 100644 index 000000000000..3b8bd46832a1 --- /dev/null +++ b/include/asm-s390/elf.h
@@ -0,0 +1,215 @@
	1	/*
	2	* include/asm-s390/elf.h
	3	*
	4	* S390 version
	5	*
	6	* Derived from "include/asm-i386/elf.h"
	7	*/
	8
	9	#ifndef __ASMS390_ELF_H
	10	#define __ASMS390_ELF_H
	11
	12	/* s390 relocations defined by the ABIs */
	13	#define R_390_NONE 0 /* No reloc. */
	14	#define R_390_8 1 /* Direct 8 bit. */
	15	#define R_390_12 2 /* Direct 12 bit. */
	16	#define R_390_16 3 /* Direct 16 bit. */
	17	#define R_390_32 4 /* Direct 32 bit. */
	18	#define R_390_PC32 5 /* PC relative 32 bit. */
	19	#define R_390_GOT12 6 /* 12 bit GOT offset. */
	20	#define R_390_GOT32 7 /* 32 bit GOT offset. */
	21	#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */
	22	#define R_390_COPY 9 /* Copy symbol at runtime. */
	23	#define R_390_GLOB_DAT 10 /* Create GOT entry. */
	24	#define R_390_JMP_SLOT 11 /* Create PLT entry. */
	25	#define R_390_RELATIVE 12 /* Adjust by program base. */
	26	#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */
	27	#define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */
	28	#define R_390_GOT16 15 /* 16 bit GOT offset. */
	29	#define R_390_PC16 16 /* PC relative 16 bit. */
	30	#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */
	31	#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */
	32	#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */
	33	#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */
	34	#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */
	35	#define R_390_64 22 /* Direct 64 bit. */
	36	#define R_390_PC64 23 /* PC relative 64 bit. */
	37	#define R_390_GOT64 24 /* 64 bit GOT offset. */
	38	#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */
	39	#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */
	40	#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */
	41	#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */
	42	#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */
	43	#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */
	44	#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */
	45	#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */
	46	#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */
	47	#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */
	48	#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */
	49	#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */
	50	#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */
	51	#define R_390_TLS_GDCALL 38 /* Tag for function call in general
	52	dynamic TLS code. */
	53	#define R_390_TLS_LDCALL 39 /* Tag for function call in local
	54	dynamic TLS code. */
	55	#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic
	56	thread local data. */
	57	#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic
	58	thread local data. */
	59	#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS
	60	block offset. */
	61	#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS
	62	block offset. */
	63	#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS
	64	block offset. */
	65	#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic
	66	thread local data in LD code. */
	67	#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic
	68	thread local data in LD code. */
	69	#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for
	70	negated static TLS block offset. */
	71	#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for
	72	negated static TLS block offset. */
	73	#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for
	74	negated static TLS block offset. */
	75	#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to
	76	static TLS block. */
	77	#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to
	78	static TLS block. */
	79	#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS
	80	block. */
	81	#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS
	82	block. */
	83	#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */
	84	#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */
	85	#define R_390_TLS_TPOFF 56 /* Negate offset in static TLS
	86	block. */
	87	#define R_390_20 57 /* Direct 20 bit. */
	88	#define R_390_GOT20 58 /* 20 bit GOT offset. */
	89	#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */
	90	#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS
	91	block offset. */
	92	/* Keep this the last entry. */
	93	#define R_390_NUM 61
	94
	95	/*
	96	* ELF register definitions..
	97	*/
	98
	99	#include <asm/ptrace.h>
	100	#include <asm/user.h>
	101	#include <asm/system.h> /* for save_access_regs */
	102
	103
	104	typedef s390_fp_regs elf_fpregset_t;
	105	typedef s390_regs elf_gregset_t;
	106
	107	/*
	108	* These are used to set parameters in the core dumps.
	109	*/
	110	#ifndef __s390x__
	111	#define ELF_CLASS ELFCLASS32
	112	#else /* __s390x__ */
	113	#define ELF_CLASS ELFCLASS64
	114	#endif /* __s390x__ */
	115	#define ELF_DATA ELFDATA2MSB
	116	#define ELF_ARCH EM_S390
	117
	118	/*
	119	* This is used to ensure we don't load something for the wrong architecture.
	120	*/
	121	#define elf_check_arch(x) \
	122	(((x)->e_machine == EM_S390 \|\| (x)->e_machine == EM_S390_OLD) \
	123	&& (x)->e_ident[EI_CLASS] == ELF_CLASS)
	124
	125	/* For SVR4/S390 the function pointer to be registered with `atexit` is
	126	passed in R14. */
	127	#define ELF_PLAT_INIT(_r, load_addr) \
	128	do { \
	129	_r->gprs[14] = 0; \
	130	} while (0)
	131
	132	#define USE_ELF_CORE_DUMP
	133	#define ELF_EXEC_PAGESIZE 4096
	134
	135	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	136	use of this is to invoke "./ld.so someprog" to test out a new version of
	137	the loader. We need to make sure that it is out of the way of the program
	138	that it will "exec", and that there is sufficient room for the brk. */
	139
	140	#ifndef __s390x__
	141	#define ELF_ET_DYN_BASE ((TASK_SIZE & 0x80000000) \
	142	? TASK_SIZE / 3 * 2 \
	143	: 2 * TASK_SIZE / 3)
	144	#else /* __s390x__ */
	145	#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
	146	#endif /* __s390x__ */
	147
	148	/* Wow, the "main" arch needs arch dependent functions too.. :) */
	149
	150	/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
	151	now struct_user_regs, they are different) */
	152
	153	static inline int dump_regs(struct pt_regs ptregs, elf_gregset_t regs)
	154	{
	155	memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
	156	save_access_regs(regs->acrs);
	157	regs->orig_gpr2 = ptregs->orig_gpr2;
	158	return 1;
	159	}
	160
	161	#define ELF_CORE_COPY_REGS(pr_reg, regs) dump_regs(regs, &pr_reg);
	162
	163	static inline int dump_task_regs(struct task_struct tsk, elf_gregset_t regs)
	164	{
	165	struct pt_regs *ptregs = __KSTK_PTREGS(tsk);
	166	memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
	167	memcpy(regs->acrs, tsk->thread.acrs, sizeof(regs->acrs));
	168	regs->orig_gpr2 = ptregs->orig_gpr2;
	169	return 1;
	170	}
	171
	172	#define ELF_CORE_COPY_TASK_REGS(tsk, regs) dump_task_regs(tsk, regs)
	173
	174	static inline int dump_task_fpu(struct task_struct tsk, elf_fpregset_t fpregs)
	175	{
	176	if (tsk == current)
	177	save_fp_regs(fpregs);
	178	else
	179	memcpy(fpregs, &tsk->thread.fp_regs, sizeof(elf_fpregset_t));
	180	return 1;
	181	}
	182
	183	#define ELF_CORE_COPY_FPREGS(tsk, fpregs) dump_task_fpu(tsk, fpregs)
	184
	185
	186	/* This yields a mask that user programs can use to figure out what
	187	instruction set this CPU supports. */
	188
	189	#define ELF_HWCAP (0)
	190
	191	/* This yields a string that ld.so will use to load implementation
	192	specific libraries for optimization. This is more specific in
	193	intent than poking at uname or /proc/cpuinfo.
	194
	195	For the moment, we have only optimizations for the Intel generations,
	196	but that could change... */
	197
	198	#define ELF_PLATFORM (NULL)
	199
	200	#ifdef __KERNEL__
	201	#ifndef __s390x__
	202	#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
	203	#else /* __s390x__ */
	204	#define SET_PERSONALITY(ex, ibcs2) \
	205	do { \
	206	if (ibcs2) \
	207	set_personality(PER_SVR4); \
	208	else if (current->personality != PER_LINUX32) \
	209	set_personality(PER_LINUX); \
	210	clear_thread_flag(TIF_31BIT); \
	211	} while (0)
	212	#endif /* __s390x__ */
	213	#endif
	214
	215	#endif