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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /cpukit/score/cpu/mips/include/machine/elf_machdep.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'cpukit/score/cpu/mips/include/machine/elf_machdep.h')
-rw-r--r--cpukit/score/cpu/mips/include/machine/elf_machdep.h199
1 files changed, 199 insertions, 0 deletions
diff --git a/cpukit/score/cpu/mips/include/machine/elf_machdep.h b/cpukit/score/cpu/mips/include/machine/elf_machdep.h
new file mode 100644
index 0000000000..26700ce4ce
--- /dev/null
+++ b/cpukit/score/cpu/mips/include/machine/elf_machdep.h
@@ -0,0 +1,199 @@
+/* $NetBSD: elf_machdep.h,v 1.15 2011/03/15 07:39:22 matt Exp $ */
+
+#ifndef _MIPS_ELF_MACHDEP_H_
+#define _MIPS_ELF_MACHDEP_H_
+
+#ifdef _LP64
+#define ARCH_ELFSIZE 64 /* MD native binary size */
+#else
+#define ARCH_ELFSIZE 32 /* MD native binary size */
+#endif
+
+#if ARCH_ELFSIZE == 32
+#define ELF32_MACHDEP_ID_CASES \
+ case EM_MIPS: \
+ break;
+
+#define ELF32_MACHDEP_ID EM_MIPS
+
+#elif ARCH_ELFSIZE == 64
+#define ELF64_MACHDEP_ID_CASES \
+ case EM_MIPS: \
+ break;
+
+#define ELF64_MACHDEP_ID EM_MIPS
+
+#endif
+
+
+/* mips relocs. */
+
+#define R_MIPS_NONE 0
+#define R_MIPS_16 1
+#define R_MIPS_32 2
+#define R_MIPS_REL32 3
+#define R_MIPS_REL R_MIPS_REL32
+#define R_MIPS_26 4
+#define R_MIPS_HI16 5 /* high 16 bits of symbol value */
+#define R_MIPS_LO16 6 /* low 16 bits of symbol value */
+#define R_MIPS_GPREL16 7 /* GP-relative reference */
+#define R_MIPS_LITERAL 8 /* Reference to literal section */
+#define R_MIPS_GOT16 9 /* Reference to global offset table */
+#define R_MIPS_GOT R_MIPS_GOT16
+#define R_MIPS_PC16 10 /* 16 bit PC relative reference */
+#define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */
+#define R_MIPS_CALL R_MIPS_CALL16
+#define R_MIPS_GPREL32 12
+
+/* 13, 14, 15 are not defined at this point. */
+#define R_MIPS_UNUSED1 13
+#define R_MIPS_UNUSED2 14
+#define R_MIPS_UNUSED3 15
+
+/*
+ * The remaining relocs are apparently part of the 64-bit Irix ELF ABI.
+ */
+#define R_MIPS_SHIFT5 16
+#define R_MIPS_SHIFT6 17
+
+#define R_MIPS_64 18
+#define R_MIPS_GOT_DISP 19
+#define R_MIPS_GOT_PAGE 20
+#define R_MIPS_GOT_OFST 21
+#define R_MIPS_GOT_HI16 22
+#define R_MIPS_GOT_LO16 23
+#define R_MIPS_SUB 24
+#define R_MIPS_INSERT_A 25
+#define R_MIPS_INSERT_B 26
+#define R_MIPS_DELETE 27
+#define R_MIPS_HIGHER 28
+#define R_MIPS_HIGHEST 29
+#define R_MIPS_CALL_HI16 30
+#define R_MIPS_CALL_LO16 31
+#define R_MIPS_SCN_DISP 32
+#define R_MIPS_REL16 33
+#define R_MIPS_ADD_IMMEDIATE 34
+#define R_MIPS_PJUMP 35
+#define R_MIPS_RELGOT 36
+#define R_MIPS_JALR 37
+/* TLS relocations */
+
+#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */
+#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */
+#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */
+#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */
+#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */
+#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */
+#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */
+#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */
+#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */
+#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */
+#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */
+#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */
+#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */
+
+#define R_MIPS_max 51
+
+#define R_TYPE(name) __CONCAT(R_MIPS_,name)
+
+#define R_MIPS16_min 100
+#define R_MIPS16_26 100
+#define R_MIPS16_GPREL 101
+#define R_MIPS16_GOT16 102
+#define R_MIPS16_CALL16 103
+#define R_MIPS16_HI16 104
+#define R_MIPS16_LO16 105
+#define R_MIPS16_max 106
+
+
+/* mips dynamic tags */
+
+#define DT_MIPS_RLD_VERSION 0x70000001
+#define DT_MIPS_TIME_STAMP 0x70000002
+#define DT_MIPS_ICHECKSUM 0x70000003
+#define DT_MIPS_IVERSION 0x70000004
+#define DT_MIPS_FLAGS 0x70000005
+#define DT_MIPS_BASE_ADDRESS 0x70000006
+#define DT_MIPS_CONFLICT 0x70000008
+#define DT_MIPS_LIBLIST 0x70000009
+#define DT_MIPS_CONFLICTNO 0x7000000b
+#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* number of local got ents */
+#define DT_MIPS_LIBLISTNO 0x70000010
+#define DT_MIPS_SYMTABNO 0x70000011 /* number of .dynsym entries */
+#define DT_MIPS_UNREFEXTNO 0x70000012
+#define DT_MIPS_GOTSYM 0x70000013 /* first dynamic sym in got */
+#define DT_MIPS_HIPAGENO 0x70000014
+#define DT_MIPS_RLD_MAP 0x70000016 /* address of loader map */
+
+/*
+ * ELF Flags
+ */
+#define EF_MIPS_PIC 0x00000002 /* Contains PIC code */
+#define EF_MIPS_CPIC 0x00000004 /* STD PIC calling sequence */
+#define EF_MIPS_ABI2 0x00000020 /* N32 */
+
+#define EF_MIPS_ARCH_ASE 0x0f000000 /* Architectural extensions */
+#define EF_MIPS_ARCH_MDMX 0x08000000 /* MDMX multimedia extension */
+#define EF_MIPS_ARCH_M16 0x04000000 /* MIPS-16 ISA extensions */
+
+#define EF_MIPS_ARCH 0xf0000000 /* Architecture field */
+#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code */
+#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code */
+#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code */
+#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code */
+#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code */
+#define EF_MIPS_ARCH_32 0x50000000 /* -mips32 code */
+#define EF_MIPS_ARCH_64 0x60000000 /* -mips64 code */
+#define EF_MIPS_ARCH_32R2 0x70000000 /* -mips32r2 code */
+#define EF_MIPS_ARCH_64R2 0x80000000 /* -mips64r2 code */
+
+#define EF_MIPS_ABI 0x0000f000
+#define EF_MIPS_ABI_O32 0x00001000
+#define EF_MIPS_ABI_O64 0x00002000
+#define EF_MIPS_ABI_EABI32 0x00003000
+#define EF_MIPS_ABI_EABI64 0x00004000
+
+#if defined(__MIPSEB__)
+#define ELF32_MACHDEP_ENDIANNESS ELFDATA2MSB
+#define ELF64_MACHDEP_ENDIANNESS ELFDATA2MSB
+#elif defined(__MIPSEL__)
+#define ELF32_MACHDEP_ENDIANNESS ELFDATA2LSB
+#define ELF64_MACHDEP_ENDIANNESS ELFDATA2LSB
+#elif !defined(HAVE_NBTOOL_CONFIG_H)
+#error neither __MIPSEL__ nor __MIPSEB__ are defined.
+#endif
+
+#ifdef _KERNEL
+#ifdef _KERNEL_OPT
+#include "opt_compat_netbsd.h"
+#endif
+#ifdef COMPAT_16
+/*
+ * Up to 1.6, the ELF dynamic loader (ld.elf_so) was not relocatable.
+ * Tell the kernel ELF exec code not to try relocating the interpreter
+ * for dynamically-linked ELF binaries.
+ */
+#define ELF_INTERP_NON_RELOCATABLE
+#endif /* COMPAT_16 */
+
+/*
+ * We need to be able to include the ELF header so we can pick out the
+ * ABI being used.
+ */
+#ifdef ELFSIZE
+#define ELF_MD_PROBE_FUNC ELFNAME2(mips_netbsd,probe)
+#define ELF_MD_COREDUMP_SETUP ELFNAME2(coredump,setup)
+#endif
+
+struct exec_package;
+
+int mips_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
+ vaddr_t *);
+void coredump_elf32_setup(struct lwp *, void *);
+
+int mips_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *, char *,
+ vaddr_t *);
+void coredump_elf64_setup(struct lwp *, void *);
+#endif /* _KERNEL */
+
+#endif /* _MIPS_ELF_MACHDEP_H_ */