From 65c2e69b3ccaa359032cfc35c4dbb8d235f63e5b Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Thu, 23 Mar 2017 19:00:44 +0000 Subject: [PATCH] include: pe.h: allow for use in assembly Some of the definitions in include/linux/pe.h would be useful for the EFI stub headers, where values are currently open-coded. Unfortunately they cannot be used as some structures are also defined in pe.h without !__ASSEMBLY__ guards. This patch moves the structure definitions into an #ifdef __ASSEMBLY__ block, so that the common value definitions can be used from assembly. Signed-off-by: Mark Rutland Signed-off-by: Ard Biesheuvel Signed-off-by: Catalin Marinas --- include/linux/pe.h | 174 +++++++++++++++++++++++---------------------- 1 file changed, 89 insertions(+), 85 deletions(-) diff --git a/include/linux/pe.h b/include/linux/pe.h index e170b95e763b..a8a594117df3 100644 --- a/include/linux/pe.h +++ b/include/linux/pe.h @@ -23,34 +23,6 @@ #define MZ_MAGIC 0x5a4d /* "MZ" */ -struct mz_hdr { - uint16_t magic; /* MZ_MAGIC */ - uint16_t lbsize; /* size of last used block */ - uint16_t blocks; /* pages in file, 0x3 */ - uint16_t relocs; /* relocations */ - uint16_t hdrsize; /* header size in "paragraphs" */ - uint16_t min_extra_pps; /* .bss */ - uint16_t max_extra_pps; /* runtime limit for the arena size */ - uint16_t ss; /* relative stack segment */ - uint16_t sp; /* initial %sp register */ - uint16_t checksum; /* word checksum */ - uint16_t ip; /* initial %ip register */ - uint16_t cs; /* initial %cs relative to load segment */ - uint16_t reloc_table_offset; /* offset of the first relocation */ - uint16_t overlay_num; /* overlay number. set to 0. */ - uint16_t reserved0[4]; /* reserved */ - uint16_t oem_id; /* oem identifier */ - uint16_t oem_info; /* oem specific */ - uint16_t reserved1[10]; /* reserved */ - uint32_t peaddr; /* address of pe header */ - char message[64]; /* message to print */ -}; - -struct mz_reloc { - uint16_t offset; - uint16_t segment; -}; - #define PE_MAGIC 0x00004550 /* "PE\0\0" */ #define PE_OPT_MAGIC_PE32 0x010b #define PE_OPT_MAGIC_PE32_ROM 0x0107 @@ -98,17 +70,6 @@ struct mz_reloc { #define IMAGE_FILE_UP_SYSTEM_ONLY 0x4000 #define IMAGE_FILE_BYTES_REVERSED_HI 0x8000 -struct pe_hdr { - uint32_t magic; /* PE magic */ - uint16_t machine; /* machine type */ - uint16_t sections; /* number of sections */ - uint32_t timestamp; /* time_t */ - uint32_t symbol_table; /* symbol table offset */ - uint32_t symbols; /* number of symbols */ - uint16_t opt_hdr_size; /* size of optional header */ - uint16_t flags; /* flags */ -}; - #define IMAGE_FILE_OPT_ROM_MAGIC 0x107 #define IMAGE_FILE_OPT_PE32_MAGIC 0x10b #define IMAGE_FILE_OPT_PE32_PLUS_MAGIC 0x20b @@ -134,6 +95,93 @@ struct pe_hdr { #define IMAGE_DLLCHARACTERISTICS_WDM_DRIVER 0x2000 #define IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE 0x8000 +/* they actually defined 0x00000000 as well, but I think we'll skip that one. */ +#define IMAGE_SCN_RESERVED_0 0x00000001 +#define IMAGE_SCN_RESERVED_1 0x00000002 +#define IMAGE_SCN_RESERVED_2 0x00000004 +#define IMAGE_SCN_TYPE_NO_PAD 0x00000008 /* don't pad - obsolete */ +#define IMAGE_SCN_RESERVED_3 0x00000010 +#define IMAGE_SCN_CNT_CODE 0x00000020 /* .text */ +#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 /* .data */ +#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 /* .bss */ +#define IMAGE_SCN_LNK_OTHER 0x00000100 /* reserved */ +#define IMAGE_SCN_LNK_INFO 0x00000200 /* .drectve comments */ +#define IMAGE_SCN_RESERVED_4 0x00000400 +#define IMAGE_SCN_LNK_REMOVE 0x00000800 /* .o only - scn to be rm'd*/ +#define IMAGE_SCN_LNK_COMDAT 0x00001000 /* .o only - COMDAT data */ +#define IMAGE_SCN_RESERVED_5 0x00002000 /* spec omits this */ +#define IMAGE_SCN_RESERVED_6 0x00004000 /* spec omits this */ +#define IMAGE_SCN_GPREL 0x00008000 /* global pointer referenced data */ +/* spec lists 0x20000 twice, I suspect they meant 0x10000 for one of them */ +#define IMAGE_SCN_MEM_PURGEABLE 0x00010000 /* reserved for "future" use */ +#define IMAGE_SCN_16BIT 0x00020000 /* reserved for "future" use */ +#define IMAGE_SCN_LOCKED 0x00040000 /* reserved for "future" use */ +#define IMAGE_SCN_PRELOAD 0x00080000 /* reserved for "future" use */ +/* and here they just stuck a 1-byte integer in the middle of a bitfield */ +#define IMAGE_SCN_ALIGN_1BYTES 0x00100000 /* it does what it says on the box */ +#define IMAGE_SCN_ALIGN_2BYTES 0x00200000 +#define IMAGE_SCN_ALIGN_4BYTES 0x00300000 +#define IMAGE_SCN_ALIGN_8BYTES 0x00400000 +#define IMAGE_SCN_ALIGN_16BYTES 0x00500000 +#define IMAGE_SCN_ALIGN_32BYTES 0x00600000 +#define IMAGE_SCN_ALIGN_64BYTES 0x00700000 +#define IMAGE_SCN_ALIGN_128BYTES 0x00800000 +#define IMAGE_SCN_ALIGN_256BYTES 0x00900000 +#define IMAGE_SCN_ALIGN_512BYTES 0x00a00000 +#define IMAGE_SCN_ALIGN_1024BYTES 0x00b00000 +#define IMAGE_SCN_ALIGN_2048BYTES 0x00c00000 +#define IMAGE_SCN_ALIGN_4096BYTES 0x00d00000 +#define IMAGE_SCN_ALIGN_8192BYTES 0x00e00000 +#define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 /* extended relocations */ +#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 /* scn can be discarded */ +#define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 /* cannot be cached */ +#define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 /* not pageable */ +#define IMAGE_SCN_MEM_SHARED 0x10000000 /* can be shared */ +#define IMAGE_SCN_MEM_EXECUTE 0x20000000 /* can be executed as code */ +#define IMAGE_SCN_MEM_READ 0x40000000 /* readable */ +#define IMAGE_SCN_MEM_WRITE 0x80000000 /* writeable */ + +#ifndef __ASSEMBLY__ + +struct mz_hdr { + uint16_t magic; /* MZ_MAGIC */ + uint16_t lbsize; /* size of last used block */ + uint16_t blocks; /* pages in file, 0x3 */ + uint16_t relocs; /* relocations */ + uint16_t hdrsize; /* header size in "paragraphs" */ + uint16_t min_extra_pps; /* .bss */ + uint16_t max_extra_pps; /* runtime limit for the arena size */ + uint16_t ss; /* relative stack segment */ + uint16_t sp; /* initial %sp register */ + uint16_t checksum; /* word checksum */ + uint16_t ip; /* initial %ip register */ + uint16_t cs; /* initial %cs relative to load segment */ + uint16_t reloc_table_offset; /* offset of the first relocation */ + uint16_t overlay_num; /* overlay number. set to 0. */ + uint16_t reserved0[4]; /* reserved */ + uint16_t oem_id; /* oem identifier */ + uint16_t oem_info; /* oem specific */ + uint16_t reserved1[10]; /* reserved */ + uint32_t peaddr; /* address of pe header */ + char message[64]; /* message to print */ +}; + +struct mz_reloc { + uint16_t offset; + uint16_t segment; +}; + +struct pe_hdr { + uint32_t magic; /* PE magic */ + uint16_t machine; /* machine type */ + uint16_t sections; /* number of sections */ + uint32_t timestamp; /* time_t */ + uint32_t symbol_table; /* symbol table offset */ + uint32_t symbols; /* number of symbols */ + uint16_t opt_hdr_size; /* size of optional header */ + uint16_t flags; /* flags */ +}; + /* the fact that pe32 isn't padded where pe32+ is 64-bit means union won't * work right. vomit. */ struct pe32_opt_hdr { @@ -243,52 +291,6 @@ struct section_header { uint32_t flags; }; -/* they actually defined 0x00000000 as well, but I think we'll skip that one. */ -#define IMAGE_SCN_RESERVED_0 0x00000001 -#define IMAGE_SCN_RESERVED_1 0x00000002 -#define IMAGE_SCN_RESERVED_2 0x00000004 -#define IMAGE_SCN_TYPE_NO_PAD 0x00000008 /* don't pad - obsolete */ -#define IMAGE_SCN_RESERVED_3 0x00000010 -#define IMAGE_SCN_CNT_CODE 0x00000020 /* .text */ -#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 /* .data */ -#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 /* .bss */ -#define IMAGE_SCN_LNK_OTHER 0x00000100 /* reserved */ -#define IMAGE_SCN_LNK_INFO 0x00000200 /* .drectve comments */ -#define IMAGE_SCN_RESERVED_4 0x00000400 -#define IMAGE_SCN_LNK_REMOVE 0x00000800 /* .o only - scn to be rm'd*/ -#define IMAGE_SCN_LNK_COMDAT 0x00001000 /* .o only - COMDAT data */ -#define IMAGE_SCN_RESERVED_5 0x00002000 /* spec omits this */ -#define IMAGE_SCN_RESERVED_6 0x00004000 /* spec omits this */ -#define IMAGE_SCN_GPREL 0x00008000 /* global pointer referenced data */ -/* spec lists 0x20000 twice, I suspect they meant 0x10000 for one of them */ -#define IMAGE_SCN_MEM_PURGEABLE 0x00010000 /* reserved for "future" use */ -#define IMAGE_SCN_16BIT 0x00020000 /* reserved for "future" use */ -#define IMAGE_SCN_LOCKED 0x00040000 /* reserved for "future" use */ -#define IMAGE_SCN_PRELOAD 0x00080000 /* reserved for "future" use */ -/* and here they just stuck a 1-byte integer in the middle of a bitfield */ -#define IMAGE_SCN_ALIGN_1BYTES 0x00100000 /* it does what it says on the box */ -#define IMAGE_SCN_ALIGN_2BYTES 0x00200000 -#define IMAGE_SCN_ALIGN_4BYTES 0x00300000 -#define IMAGE_SCN_ALIGN_8BYTES 0x00400000 -#define IMAGE_SCN_ALIGN_16BYTES 0x00500000 -#define IMAGE_SCN_ALIGN_32BYTES 0x00600000 -#define IMAGE_SCN_ALIGN_64BYTES 0x00700000 -#define IMAGE_SCN_ALIGN_128BYTES 0x00800000 -#define IMAGE_SCN_ALIGN_256BYTES 0x00900000 -#define IMAGE_SCN_ALIGN_512BYTES 0x00a00000 -#define IMAGE_SCN_ALIGN_1024BYTES 0x00b00000 -#define IMAGE_SCN_ALIGN_2048BYTES 0x00c00000 -#define IMAGE_SCN_ALIGN_4096BYTES 0x00d00000 -#define IMAGE_SCN_ALIGN_8192BYTES 0x00e00000 -#define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 /* extended relocations */ -#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 /* scn can be discarded */ -#define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 /* cannot be cached */ -#define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 /* not pageable */ -#define IMAGE_SCN_MEM_SHARED 0x10000000 /* can be shared */ -#define IMAGE_SCN_MEM_EXECUTE 0x20000000 /* can be executed as code */ -#define IMAGE_SCN_MEM_READ 0x40000000 /* readable */ -#define IMAGE_SCN_MEM_WRITE 0x80000000 /* writeable */ - enum x64_coff_reloc_type { IMAGE_REL_AMD64_ABSOLUTE = 0, IMAGE_REL_AMD64_ADDR64, @@ -445,4 +447,6 @@ struct win_certificate { uint16_t cert_type; }; +#endif /* !__ASSEMBLY__ */ + #endif /* __LINUX_PE_H */ -- 2.20.1