linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Greentime Hu <green.hu@gmail.com>
To: greentime@andestech.com, linux-kernel@vger.kernel.org,
	arnd@arndb.de, linux-arch@vger.kernel.org, tglx@linutronix.de,
	jason@lakedaemon.net, marc.zyngier@arm.com, robh+dt@kernel.org,
	netdev@vger.kernel.org, deanbo422@gmail.com,
	devicetree@vger.kernel.org, viro@zeniv.linux.org.uk,
	dhowells@redhat.com, will.deacon@arm.com,
	daniel.lezcano@linaro.org, linux-serial@vger.kernel.org,
	geert.uytterhoeven@gmail.com, linus.walleij@linaro.org,
	mark.rutland@arm.com, greg@kroah.com, ren_guo@c-sky.com,
	rdunlap@infradead.org, davem@davemloft.net, jonas@southpole.se,
	stefan.kristiansson@saunalahti.fi, shorne@gmail.com
Cc: green.hu@gmail.com, Vincent Chen <vincentc@andestech.com>
Subject: [PATCH v7 18/37] nds32: ELF definitions
Date: Tue, 13 Feb 2018 17:09:22 +0800	[thread overview]
Message-ID: <24b075d1b99f22b0920ebb0186b5f5af8256f31c.1518505384.git.greentime@andestech.com> (raw)
In-Reply-To: <cover.1518505384.git.greentime@andestech.com>
In-Reply-To: <cover.1518505384.git.greentime@andestech.com>

This patch adds definitions for the ELF format, relocation types, vdso
locations and EXEC_PAGESIZE.

Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/nds32/include/asm/elf.h         | 171 +++++++++++++++++++++++++++++++++++
 arch/nds32/include/uapi/asm/auxvec.h |  12 +++
 arch/nds32/include/uapi/asm/param.h  |  11 +++
 3 files changed, 194 insertions(+)
 create mode 100644 arch/nds32/include/asm/elf.h
 create mode 100644 arch/nds32/include/uapi/asm/auxvec.h
 create mode 100644 arch/nds32/include/uapi/asm/param.h

diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h
new file mode 100644
index 000000000000..56c479058802
--- /dev/null
+++ b/arch/nds32/include/asm/elf.h
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __ASMNDS32_ELF_H
+#define __ASMNDS32_ELF_H
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+
+typedef unsigned long elf_greg_t;
+typedef unsigned long elf_freg_t[3];
+
+extern unsigned int elf_hwcap;
+
+#define EM_NDS32			167
+
+#define R_NDS32_NONE			0
+#define R_NDS32_16_RELA			19
+#define R_NDS32_32_RELA			20
+#define R_NDS32_9_PCREL_RELA		22
+#define R_NDS32_15_PCREL_RELA		23
+#define R_NDS32_17_PCREL_RELA		24
+#define R_NDS32_25_PCREL_RELA		25
+#define R_NDS32_HI20_RELA		26
+#define R_NDS32_LO12S3_RELA		27
+#define R_NDS32_LO12S2_RELA		28
+#define R_NDS32_LO12S1_RELA		29
+#define R_NDS32_LO12S0_RELA		30
+#define R_NDS32_SDA15S3_RELA    	31
+#define R_NDS32_SDA15S2_RELA    	32
+#define R_NDS32_SDA15S1_RELA    	33
+#define R_NDS32_SDA15S0_RELA    	34
+#define R_NDS32_GOT20			37
+#define R_NDS32_25_PLTREL		38
+#define R_NDS32_COPY			39
+#define R_NDS32_GLOB_DAT		40
+#define R_NDS32_JMP_SLOT		41
+#define R_NDS32_RELATIVE		42
+#define R_NDS32_GOTOFF			43
+#define R_NDS32_GOTPC20			44
+#define R_NDS32_GOT_HI20		45
+#define R_NDS32_GOT_LO12		46
+#define R_NDS32_GOTPC_HI20		47
+#define R_NDS32_GOTPC_LO12		48
+#define R_NDS32_GOTOFF_HI20		49
+#define R_NDS32_GOTOFF_LO12		50
+#define R_NDS32_INSN16			51
+#define R_NDS32_LABEL			52
+#define R_NDS32_LONGCALL1		53
+#define R_NDS32_LONGCALL2		54
+#define R_NDS32_LONGCALL3		55
+#define R_NDS32_LONGJUMP1		56
+#define R_NDS32_LONGJUMP2		57
+#define R_NDS32_LONGJUMP3		58
+#define R_NDS32_LOADSTORE		59
+#define R_NDS32_9_FIXED_RELA		60
+#define R_NDS32_15_FIXED_RELA		61
+#define R_NDS32_17_FIXED_RELA		62
+#define R_NDS32_25_FIXED_RELA		63
+#define R_NDS32_PLTREL_HI20		64
+#define R_NDS32_PLTREL_LO12		65
+#define R_NDS32_PLT_GOTREL_HI20		66
+#define R_NDS32_PLT_GOTREL_LO12		67
+#define R_NDS32_LO12S0_ORI_RELA		72
+#define R_NDS32_DWARF2_OP1_RELA     	77
+#define R_NDS32_DWARF2_OP2_RELA     	78
+#define R_NDS32_DWARF2_LEB_RELA     	79
+#define R_NDS32_WORD_9_PCREL_RELA	94
+#define R_NDS32_LONGCALL4 		107
+#define R_NDS32_RELA_NOP_MIX		192
+#define R_NDS32_RELA_NOP_MAX		255
+
+#define ELF_NGREG (sizeof (struct user_pt_regs) / sizeof(elf_greg_t))
+#define ELF_CORE_COPY_REGS(dest, regs)	\
+	*(struct user_pt_regs *)&(dest) = (regs)->user_regs;
+
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Core file format: The core file is written in such a way that gdb
+   can understand it and provide useful information to the user (under
+   linux we use the 'trad-core' bfd).  There are quite a number of
+   obstacles to being able to view the contents of the floating point
+   registers, and until these are solved you will not be able to view the
+   contents of them.  Actually, you can read in the core file and look at
+   the contents of the user struct to find out what the floating point
+   registers contain.
+   The actual file contents are as follows:
+   UPAGE: 1 page consisting of a user struct that tells gdb what is present
+   in the file.  Directly after this is a copy of the task_struct, which
+   is currently not used by gdb, but it may come in useful at some point.
+   All of the registers are stored as part of the upage.  The upage should
+   always be only one page.
+   DATA: The data area is stored.  We use current->end_text to
+   current->brk to pick up all of the user variables, plus any memory
+   that may have been malloced.  No attempt is made to determine if a page
+   is demand-zero or if a page is totally unused, we just cover the entire
+   range.  All of the addresses are rounded in such a way that an integral
+   number of pages is written.
+   STACK: We need the stack information in order to get a meaningful
+   backtrace.  We need to write the data from (esp) to
+   current->start_stack, so we round each of these off in order to be able
+   to write an integer number of pages.
+   The minimum core file size is 3 pages, or 12288 bytes.
+*/
+
+struct user_fp {
+        unsigned long long fd_regs[32];
+        unsigned long fpcsr;
+};
+
+typedef struct user_fp elf_fpregset_t;
+
+struct elf32_hdr;
+#define elf_check_arch(x)		((x)->e_machine == EM_NDS32)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#ifdef __NDS32_EB__
+#define ELF_DATA	ELFDATA2MSB;
+#else
+#define ELF_DATA	ELFDATA2LSB;
+#endif
+#define ELF_ARCH	EM_NDS32
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE	PAGE_SIZE
+
+/* 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.  */
+
+#define ELF_ET_DYN_BASE	(2 * TASK_SIZE / 3)
+
+/* When the program starts, a1 contains a pointer to a function to be
+   registered with atexit, as per the SVR4 ABI.  A value of 0 means we
+   have no such handler.  */
+#define ELF_PLAT_INIT(_r, load_addr)	(_r)->uregs[0] = 0
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this cpu supports. */
+
+#define ELF_HWCAP	(elf_hwcap)
+
+#ifdef __KERNEL__
+
+#define ELF_PLATFORM    (NULL)
+
+/* Old NetWinder binaries were compiled in such a way that the iBCS
+   heuristic always trips on them.  Until these binaries become uncommon
+   enough not to care, don't trust the `ibcs' flag here.  In any case
+   there is no other ELF system currently supported by iBCS.
+   @@ Could print a warning message to encourage users to upgrade.  */
+#define SET_PERSONALITY(ex)	set_personality(PER_LINUX)
+
+#endif
+
+#define ARCH_DLINFO						\
+do {								\
+	NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
+		    (elf_addr_t)current->mm->context.vdso);	\
+} while (0)
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+struct linux_binprm;
+int arch_setup_additional_pages(struct linux_binprm *, int);
+
+#endif
diff --git a/arch/nds32/include/uapi/asm/auxvec.h b/arch/nds32/include/uapi/asm/auxvec.h
new file mode 100644
index 000000000000..56043ce4972f
--- /dev/null
+++ b/arch/nds32/include/uapi/asm/auxvec.h
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __ASM_AUXVEC_H
+#define __ASM_AUXVEC_H
+
+/* VDSO location */
+#define AT_SYSINFO_EHDR	33
+
+#define AT_VECTOR_SIZE_ARCH 1
+
+#endif
diff --git a/arch/nds32/include/uapi/asm/param.h b/arch/nds32/include/uapi/asm/param.h
new file mode 100644
index 000000000000..e3fb723ee362
--- /dev/null
+++ b/arch/nds32/include/uapi/asm/param.h
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __ASM_NDS32_PARAM_H
+#define __ASM_NDS32_PARAM_H
+
+#define EXEC_PAGESIZE	8192
+
+#include <asm-generic/param.h>
+
+#endif /* __ASM_NDS32_PARAM_H */
-- 
2.16.1

  parent reply	other threads:[~2018-02-13  9:09 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-13  9:09 [PATCH v7 00/37] Andes(nds32) Linux Kernel Port Greentime Hu
2018-02-13  9:09 ` [PATCH v7 01/37] openrisc: add ioremap_nocache declaration before include asm-generic/io.h and sync ioremap prototype with it Greentime Hu
2018-02-13  9:09 ` [PATCH v7 02/37] asm-generic/io.h: move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU Greentime Hu
2018-02-16  9:30   ` kbuild test robot
2018-02-16 10:47   ` kbuild test robot
2018-02-21 11:21     ` Greentime Hu
2018-02-21 11:37       ` Arnd Bergmann
2018-02-21 12:02         ` Greentime Hu
2018-02-13  9:09 ` [PATCH v7 03/37] sparc: io: To use the define of ioremap_[nocache|wc|wb] in asm-generic/io.h Greentime Hu
2018-02-14 14:43   ` Arnd Bergmann
2018-02-21  8:05     ` Greentime Hu
2018-02-21 12:27       ` Arnd Bergmann
2018-02-13  9:09 ` [PATCH v7 04/37] earlycon: add reg-offset to physical address before mapping Greentime Hu
2018-02-15 15:40   ` Rob Herring
2018-02-28 12:39     ` Greg Kroah-Hartman
2018-02-13  9:09 ` [PATCH v7 05/37] drivers/video/concole: add negative dependency for VGA_CONSOLE on nds32 Greentime Hu
2018-02-13  9:09 ` [PATCH v7 06/37] nds32: Assembly macros and definitions Greentime Hu
2018-02-13  9:09 ` [PATCH v7 07/37] nds32: Kernel booting and initialization Greentime Hu
2018-02-14 14:35   ` Arnd Bergmann
2018-02-13  9:09 ` [PATCH v7 08/37] nds32: Exception handling Greentime Hu
2018-02-14 14:31   ` Arnd Bergmann
2018-02-13  9:09 ` [PATCH v7 09/37] nds32: MMU definitions Greentime Hu
2018-02-13  9:09 ` [PATCH v7 10/37] nds32: MMU initialization Greentime Hu
2018-02-13  9:09 ` [PATCH v7 11/37] nds32: MMU fault handling and page table management Greentime Hu
2018-02-13  9:09 ` [PATCH v7 12/37] nds32: Cache and TLB routines Greentime Hu
2018-02-13  9:09 ` [PATCH v7 13/37] nds32: Process management Greentime Hu
2018-02-13  9:09 ` [PATCH v7 14/37] nds32: IRQ handling Greentime Hu
2018-02-13  9:09 ` [PATCH v7 15/37] nds32: Atomic operations Greentime Hu
2018-02-13  9:09 ` [PATCH v7 16/37] nds32: Device specific operations Greentime Hu
2018-02-13  9:09 ` [PATCH v7 17/37] nds32: DMA mapping API Greentime Hu
2018-02-13  9:09 ` Greentime Hu [this message]
2018-02-13  9:09 ` [PATCH v7 19/37] nds32: System calls handling Greentime Hu
2018-02-13  9:09 ` [PATCH v7 20/37] nds32: VDSO support Greentime Hu
2018-02-13  9:09 ` [PATCH v7 21/37] nds32: Signal handling support Greentime Hu
2018-02-13  9:09 ` [PATCH v7 22/37] nds32: Library functions Greentime Hu
2018-02-13  9:09 ` [PATCH v7 23/37] nds32: Debugging support Greentime Hu
2018-02-14 14:32   ` Arnd Bergmann
2018-02-13  9:09 ` [PATCH v7 24/37] nds32: L2 cache support Greentime Hu
2018-02-13  9:09 ` [PATCH v7 25/37] nds32: Loadable modules Greentime Hu
2018-02-13  9:09 ` [PATCH v7 26/37] nds32: Generic timers support Greentime Hu
2018-02-13  9:09 ` [PATCH v7 27/37] nds32: Device tree support Greentime Hu
2018-02-13  9:09 ` [PATCH v7 28/37] nds32: Miscellaneous header files Greentime Hu
2018-02-13  9:09 ` [PATCH v7 29/37] nds32: defconfig Greentime Hu
2018-02-13  9:09 ` [PATCH v7 30/37] nds32: Build infrastructure Greentime Hu
2018-02-14 14:34   ` Arnd Bergmann
2018-02-13  9:09 ` [PATCH v7 31/37] MAINTAINERS: Add nds32 Greentime Hu
2018-02-13 16:02   ` Joe Perches
2018-02-14  5:54     ` Greentime Hu
2018-02-13  9:09 ` [PATCH v7 32/37] dt-bindings: nds32 CPU Bindings Greentime Hu
2018-02-13  9:09 ` [PATCH v7 33/37] dt-bindings: nds32 L2 cache controller Bindings Greentime Hu
2018-02-13  9:09 ` [PATCH v7 34/37] dt-bindings: nds32 SoC Bindings Greentime Hu
2018-02-13  9:09 ` [PATCH v7 35/37] dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller Greentime Hu
2018-02-13  9:09 ` [PATCH v7 36/37] irqchip: Andestech Internal Vector Interrupt Controller driver Greentime Hu
2018-02-13  9:09 ` [PATCH v7 37/37] net: faraday add nds32 support Greentime Hu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=24b075d1b99f22b0920ebb0186b5f5af8256f31c.1518505384.git.greentime@andestech.com \
    --to=green.hu@gmail.com \
    --cc=arnd@arndb.de \
    --cc=daniel.lezcano@linaro.org \
    --cc=davem@davemloft.net \
    --cc=deanbo422@gmail.com \
    --cc=devicetree@vger.kernel.org \
    --cc=dhowells@redhat.com \
    --cc=geert.uytterhoeven@gmail.com \
    --cc=greentime@andestech.com \
    --cc=greg@kroah.com \
    --cc=jason@lakedaemon.net \
    --cc=jonas@southpole.se \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-serial@vger.kernel.org \
    --cc=marc.zyngier@arm.com \
    --cc=mark.rutland@arm.com \
    --cc=netdev@vger.kernel.org \
    --cc=rdunlap@infradead.org \
    --cc=ren_guo@c-sky.com \
    --cc=robh+dt@kernel.org \
    --cc=shorne@gmail.com \
    --cc=stefan.kristiansson@saunalahti.fi \
    --cc=tglx@linutronix.de \
    --cc=vincentc@andestech.com \
    --cc=viro@zeniv.linux.org.uk \
    --cc=will.deacon@arm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).