mirror of
https://github.com/unicode-org/icu.git
synced 2025-04-07 22:44:49 +00:00
ICU-5393 support genccode --object for generating ELF .o file format on Linux, and add the --match-arch option for Linux ELF and Windows COFF
X-SVN-Rev: 20430
This commit is contained in:
parent
673021b6f8
commit
cbabdfdd0b
1 changed files with 455 additions and 35 deletions
|
@ -30,19 +30,22 @@
|
|||
# define NOMCX
|
||||
#include <windows.h>
|
||||
#include <time.h>
|
||||
|
||||
/* _M_IA64 should be defined in windows.h */
|
||||
#if defined(_M_IA64)
|
||||
# define ICU_OBJECT_MACHINE_TYPE IMAGE_FILE_MACHINE_IA64
|
||||
# define ICU_ENTRY_OFFSET 0
|
||||
#elif defined(_M_AMD64)
|
||||
# define ICU_OBJECT_MACHINE_TYPE IMAGE_FILE_MACHINE_AMD64
|
||||
# define ICU_ENTRY_OFFSET 0
|
||||
#else
|
||||
# define ICU_OBJECT_MACHINE_TYPE IMAGE_FILE_MACHINE_I386
|
||||
# define ICU_ENTRY_OFFSET 1
|
||||
#endif
|
||||
|
||||
#ifdef U_LINUX
|
||||
# define U_ELF
|
||||
#endif
|
||||
|
||||
#ifdef U_ELF
|
||||
# include <elf.h>
|
||||
# if defined(ELFCLASS64)
|
||||
# define U_ELF64
|
||||
# endif
|
||||
/* Old elf.h headers may not have EM_X86_64, or have EM_X8664 instead. */
|
||||
# ifndef EM_X86_64
|
||||
# define EM_X86_64 62
|
||||
# endif
|
||||
# define ICU_ENTRY_OFFSET 0
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
|
@ -59,7 +62,7 @@
|
|||
|
||||
static uint32_t column=MAX_COLUMN;
|
||||
|
||||
#ifdef U_WINDOWS
|
||||
#if defined(U_WINDOWS) || defined(U_ELF)
|
||||
#define CAN_GENERATE_OBJECTS
|
||||
#endif
|
||||
|
||||
|
@ -99,6 +102,7 @@ enum {
|
|||
kOptEntryPoint,
|
||||
#ifdef CAN_GENERATE_OBJECTS
|
||||
kOptObject,
|
||||
kOptMatchArch,
|
||||
#endif
|
||||
kOptFilename,
|
||||
kOptAssembly
|
||||
|
@ -213,6 +217,7 @@ static UOption options[]={
|
|||
UOPTION_DEF("entrypoint", 'e', UOPT_REQUIRES_ARG),
|
||||
#ifdef CAN_GENERATE_OBJECTS
|
||||
/*5*/UOPTION_DEF("object", 'o', UOPT_NO_ARG),
|
||||
UOPTION_DEF("match-arch", 'm', UOPT_REQUIRES_ARG),
|
||||
#endif
|
||||
UOPTION_DEF("filename", 'f', UOPT_REQUIRES_ARG),
|
||||
UOPTION_DEF("assembly", 'a', UOPT_REQUIRES_ARG)
|
||||
|
@ -229,7 +234,7 @@ main(int argc, char* argv[]) {
|
|||
|
||||
/* read command line options */
|
||||
argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
|
||||
|
||||
|
||||
/* error handling, printing usage message */
|
||||
if(argc<0) {
|
||||
fprintf(stderr,
|
||||
|
@ -245,14 +250,17 @@ main(int argc, char* argv[]) {
|
|||
"\t-h or -? or --help this usage text\n"
|
||||
"\t-d or --destdir destination directory, followed by the path\n"
|
||||
"\t-n or --name symbol prefix, followed by the prefix\n"
|
||||
"\t-e or --entrypoint entry point name, followed by the name\n"
|
||||
"\t-e or --entrypoint entry point name, followed by the name (_dat will be appended)\n"
|
||||
"\t-r or --revision Specify a version\n"
|
||||
#ifdef CAN_GENERATE_OBJECTS
|
||||
"\t-o or --object write a .obj file instead of .c\n"
|
||||
#endif
|
||||
"\t-f or --filename Specify an alternate base filename. (default: symbolname_typ)\n"
|
||||
, argv[0]);
|
||||
#ifdef CAN_GENERATE_OBJECTS
|
||||
fprintf(stderr,
|
||||
"\t-o or --object write a .obj file instead of .c\n"
|
||||
"\t-m or --match-arch file.o match the architecture (CPU, 32/64 bits) of the specified .o\n"
|
||||
"\t ELF format defaults to i386. Windows defaults to the native platform.\n");
|
||||
#endif
|
||||
fprintf(stderr,
|
||||
"\t-f or --filename Specify an alternate base filename. (default: symbolname_typ)\n"
|
||||
"\t-a or --assembly Create assembly file. (possible values are: ");
|
||||
|
||||
fprintf(stderr, "%s", assemblyHeader[0].name);
|
||||
|
@ -486,10 +494,353 @@ writeCCode(const char *filename, const char *destdir) {
|
|||
}
|
||||
|
||||
#ifdef CAN_GENERATE_OBJECTS
|
||||
static void
|
||||
getArchitecture(uint16_t *pCPU, uint16_t *pBits, UBool *pIsBigEndian) {
|
||||
int64_t buffer[256];
|
||||
const char *filename;
|
||||
FileStream *in;
|
||||
int32_t length;
|
||||
|
||||
#ifdef U_ELF
|
||||
/* Pointer to ELF header. Elf32_Ehdr and ELF64_Ehdr are identical for the necessary fields. */
|
||||
const Elf32_Ehdr *pHeader32;
|
||||
#elif defined(U_WINDOWS)
|
||||
const IMAGE_FILE_HEADER *pHeader;
|
||||
#else
|
||||
# error "Unknown platform for CAN_GENERATE_OBJECTS."
|
||||
#endif
|
||||
|
||||
if(options[kOptMatchArch].doesOccur) {
|
||||
filename=options[kOptMatchArch].value;
|
||||
} else {
|
||||
/* set defaults */
|
||||
#ifdef U_ELF
|
||||
/* set EM_386 because elf.h does not provide better defaults */
|
||||
*pCPU=EM_386;
|
||||
*pBits=32;
|
||||
*pIsBigEndian=(UBool)(U_IS_BIG_ENDIAN ? ELFDATA2MSB : ELFDATA2LSB);
|
||||
#elif defined(U_WINDOWS)
|
||||
/* _M_IA64 should be defined in windows.h */
|
||||
# if defined(_M_IA64)
|
||||
*pCPU=IMAGE_FILE_MACHINE_IA64;
|
||||
# elif defined(_M_AMD64)
|
||||
*pCPU=IMAGE_FILE_MACHINE_AMD64;
|
||||
# else
|
||||
*pCPU=IMAGE_FILE_MACHINE_I386;
|
||||
# endif
|
||||
*pBits= *pCPU==IMAGE_FILE_MACHINE_I386 ? 32 : 64;
|
||||
*pIsBigEndian=FALSE;
|
||||
#else
|
||||
# error "Unknown platform for CAN_GENERATE_OBJECTS."
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
in=T_FileStream_open(filename, "rb");
|
||||
if(in==NULL) {
|
||||
fprintf(stderr, "genccode: unable to open match-arch file %s\n", filename);
|
||||
exit(U_FILE_ACCESS_ERROR);
|
||||
}
|
||||
length=T_FileStream_read(in, buffer, sizeof(buffer));
|
||||
|
||||
#ifdef U_ELF
|
||||
if(length<sizeof(Elf32_Ehdr)) {
|
||||
fprintf(stderr, "genccode: match-arch file %s is too short\n", filename);
|
||||
exit(U_UNSUPPORTED_ERROR);
|
||||
}
|
||||
pHeader32=(const Elf32_Ehdr *)buffer;
|
||||
if(
|
||||
pHeader32->e_ident[0]!=ELFMAG0 ||
|
||||
pHeader32->e_ident[1]!=ELFMAG1 ||
|
||||
pHeader32->e_ident[2]!=ELFMAG2 ||
|
||||
pHeader32->e_ident[3]!=ELFMAG3 ||
|
||||
pHeader32->e_ident[EI_CLASS]<ELFCLASS32 || pHeader32->e_ident[EI_CLASS]>ELFCLASS64
|
||||
) {
|
||||
fprintf(stderr, "genccode: match-arch file %s is not an ELF object file, or not supported\n", filename);
|
||||
exit(U_UNSUPPORTED_ERROR);
|
||||
}
|
||||
|
||||
*pBits= pHeader32->e_ident[EI_CLASS]==ELFCLASS32 ? 32 : 64; /* only 32 or 64: see check above */
|
||||
#ifdef U_ELF64
|
||||
if(*pBits!=32 && *pBits!=64) {
|
||||
fprintf(stderr, "genccode: currently only supports 32-bit and 64-bit ELF format\n");
|
||||
exit(U_UNSUPPORTED_ERROR);
|
||||
}
|
||||
#else
|
||||
if(*pBits!=32) {
|
||||
fprintf(stderr, "genccode: built with elf.h missing 64-bit definitions\n");
|
||||
exit(U_UNSUPPORTED_ERROR);
|
||||
}
|
||||
#endif
|
||||
|
||||
*pIsBigEndian=(UBool)(pHeader32->e_ident[EI_DATA]==ELFDATA2MSB);
|
||||
if(*pIsBigEndian!=U_IS_BIG_ENDIAN) {
|
||||
fprintf(stderr, "genccode: currently only same-endianness ELF formats are supported\n");
|
||||
exit(U_UNSUPPORTED_ERROR);
|
||||
}
|
||||
/* TODO: Support byte swapping */
|
||||
|
||||
*pCPU=pHeader32->e_machine;
|
||||
#elif defined(U_WINDOWS)
|
||||
if(length<sizeof(IMAGE_FILE_HEADER)) {
|
||||
fprintf(stderr, "genccode: match-arch file %s is too short\n", filename);
|
||||
exit(U_UNSUPPORTED_ERROR);
|
||||
}
|
||||
pHeader=(const IMAGE_FILE_HEADER *)buffer;
|
||||
*pCPU=pHeader->Machine;
|
||||
/*
|
||||
* The number of bits is implicit with the Machine value.
|
||||
* *pBits is ignored in the calling code, so this need not be precise.
|
||||
*/
|
||||
*pBits= *pCPU==IMAGE_FILE_MACHINE_I386 ? 32 : 64;
|
||||
/* Windows always runs on little-endian CPUs. */
|
||||
*pIsBigEndian=FALSE;
|
||||
#else
|
||||
# error "Unknown platform for CAN_GENERATE_OBJECTS."
|
||||
#endif
|
||||
|
||||
T_FileStream_close(in);
|
||||
}
|
||||
|
||||
static void
|
||||
writeObjectCode(const char *filename, const char *destdir) {
|
||||
#ifdef U_WINDOWS
|
||||
char buffer[4096], entry[40];
|
||||
/* common variables */
|
||||
char buffer[4096], entry[40]={ 0 };
|
||||
FileStream *in, *out;
|
||||
const char *newSuffix;
|
||||
int32_t i, entryLength, length, size, entryOffset=0, entryLengthOffset=0;
|
||||
|
||||
uint16_t cpu, bits;
|
||||
UBool makeBigEndian;
|
||||
|
||||
/* platform-specific variables and initialization code */
|
||||
#ifdef U_ELF
|
||||
/* 32-bit Elf file header */
|
||||
static Elf32_Ehdr header32={
|
||||
{
|
||||
/* e_ident[] */
|
||||
ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,
|
||||
ELFCLASS32,
|
||||
U_IS_BIG_ENDIAN ? ELFDATA2MSB : ELFDATA2LSB,
|
||||
EV_CURRENT /* EI_VERSION */
|
||||
},
|
||||
ET_REL,
|
||||
EM_386,
|
||||
EV_CURRENT, /* e_version */
|
||||
0, /* e_entry */
|
||||
0, /* e_phoff */
|
||||
(Elf32_Off)sizeof(Elf32_Ehdr), /* e_shoff */
|
||||
0, /* e_flags */
|
||||
(Elf32_Half)sizeof(Elf32_Ehdr), /* eh_size */
|
||||
0, /* e_phentsize */
|
||||
0, /* e_phnum */
|
||||
(Elf32_Half)sizeof(Elf32_Shdr), /* e_shentsize */
|
||||
5, /* e_shnum */
|
||||
2 /* e_shstrndx */
|
||||
};
|
||||
|
||||
/* 32-bit Elf section header table */
|
||||
static Elf32_Shdr sectionHeaders32[5]={
|
||||
{ /* SHN_UNDEF */
|
||||
0
|
||||
},
|
||||
{ /* .symtab */
|
||||
1, /* sh_name */
|
||||
SHT_SYMTAB,
|
||||
0, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf32_Off)(sizeof(header32)+sizeof(sectionHeaders32)), /* sh_offset */
|
||||
(Elf32_Word)(2*sizeof(Elf32_Sym)), /* sh_size */
|
||||
3, /* sh_link=sect hdr index of .strtab */
|
||||
1, /* sh_info=One greater than the symbol table index of the last
|
||||
* local symbol (with STB_LOCAL). */
|
||||
4, /* sh_addralign */
|
||||
(Elf32_Word)(sizeof(Elf32_Sym)) /* sh_entsize */
|
||||
},
|
||||
{ /* .shstrtab */
|
||||
9, /* sh_name */
|
||||
SHT_STRTAB,
|
||||
0, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf32_Off)(sizeof(header32)+sizeof(sectionHeaders32)+2*sizeof(Elf32_Sym)), /* sh_offset */
|
||||
40, /* sh_size */
|
||||
0, /* sh_link */
|
||||
0, /* sh_info */
|
||||
1, /* sh_addralign */
|
||||
0 /* sh_entsize */
|
||||
},
|
||||
{ /* .strtab */
|
||||
19, /* sh_name */
|
||||
SHT_STRTAB,
|
||||
0, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf32_Off)(sizeof(header32)+sizeof(sectionHeaders32)+2*sizeof(Elf32_Sym)+40), /* sh_offset */
|
||||
(Elf32_Word)sizeof(entry), /* sh_size */
|
||||
0, /* sh_link */
|
||||
0, /* sh_info */
|
||||
1, /* sh_addralign */
|
||||
0 /* sh_entsize */
|
||||
},
|
||||
{ /* .rodata */
|
||||
27, /* sh_name */
|
||||
SHT_PROGBITS,
|
||||
SHF_ALLOC, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf32_Off)(sizeof(header32)+sizeof(sectionHeaders32)+2*sizeof(Elf32_Sym)+40+sizeof(entry)), /* sh_offset */
|
||||
0, /* sh_size */
|
||||
0, /* sh_link */
|
||||
0, /* sh_info */
|
||||
16, /* sh_addralign */
|
||||
0 /* sh_entsize */
|
||||
}
|
||||
};
|
||||
|
||||
/* symbol table */
|
||||
static Elf32_Sym symbols32[2]={
|
||||
{ /* STN_UNDEF */
|
||||
0
|
||||
},
|
||||
{ /* data entry point */
|
||||
1, /* st_name */
|
||||
0, /* st_value */
|
||||
0, /* st_size */
|
||||
ELF64_ST_INFO(STB_GLOBAL, STT_OBJECT),
|
||||
0, /* st_other */
|
||||
4 /* st_shndx=index of related section table entry */
|
||||
}
|
||||
};
|
||||
|
||||
/* section header string table, with decimal string offsets */
|
||||
static const char sectionStrings[40]=
|
||||
/* 0 */ "\0"
|
||||
/* 1 */ ".symtab\0"
|
||||
/* 9 */ ".shstrtab\0"
|
||||
/* 19 */ ".strtab\0"
|
||||
/* 27 */ ".rodata\0"
|
||||
/* 35 */ "\0\0\0\0"; /* contains terminating NUL */
|
||||
/* 40: padded to multiple of 8 bytes */
|
||||
|
||||
/*
|
||||
* Use entry[] for the string table which will contain only the
|
||||
* entry point name.
|
||||
* entry[0] must be 0 (NUL)
|
||||
* The entry point name can be up to 38 characters long (sizeof(entry)-2).
|
||||
*/
|
||||
|
||||
/* 16-align .rodata in the .o file, just in case */
|
||||
static const char padding[16]={ 0 };
|
||||
int32_t paddingSize;
|
||||
|
||||
#ifdef U_ELF64
|
||||
/* 64-bit Elf file header */
|
||||
static Elf64_Ehdr header64={
|
||||
{
|
||||
/* e_ident[] */
|
||||
ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,
|
||||
ELFCLASS64,
|
||||
U_IS_BIG_ENDIAN ? ELFDATA2MSB : ELFDATA2LSB,
|
||||
EV_CURRENT /* EI_VERSION */
|
||||
},
|
||||
ET_REL,
|
||||
EM_X86_64,
|
||||
EV_CURRENT, /* e_version */
|
||||
0, /* e_entry */
|
||||
0, /* e_phoff */
|
||||
(Elf64_Off)sizeof(Elf64_Ehdr), /* e_shoff */
|
||||
0, /* e_flags */
|
||||
(Elf64_Half)sizeof(Elf64_Ehdr), /* eh_size */
|
||||
0, /* e_phentsize */
|
||||
0, /* e_phnum */
|
||||
(Elf64_Half)sizeof(Elf64_Shdr), /* e_shentsize */
|
||||
5, /* e_shnum */
|
||||
2 /* e_shstrndx */
|
||||
};
|
||||
|
||||
/* 64-bit Elf section header table */
|
||||
static Elf64_Shdr sectionHeaders64[5]={
|
||||
{ /* SHN_UNDEF */
|
||||
0
|
||||
},
|
||||
{ /* .symtab */
|
||||
1, /* sh_name */
|
||||
SHT_SYMTAB,
|
||||
0, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf64_Off)(sizeof(header64)+sizeof(sectionHeaders64)), /* sh_offset */
|
||||
(Elf64_Xword)(2*sizeof(Elf64_Sym)), /* sh_size */
|
||||
3, /* sh_link=sect hdr index of .strtab */
|
||||
1, /* sh_info=One greater than the symbol table index of the last
|
||||
* local symbol (with STB_LOCAL). */
|
||||
4, /* sh_addralign */
|
||||
(Elf64_Xword)(sizeof(Elf64_Sym)) /* sh_entsize */
|
||||
},
|
||||
{ /* .shstrtab */
|
||||
9, /* sh_name */
|
||||
SHT_STRTAB,
|
||||
0, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf64_Off)(sizeof(header64)+sizeof(sectionHeaders64)+2*sizeof(Elf64_Sym)), /* sh_offset */
|
||||
40, /* sh_size */
|
||||
0, /* sh_link */
|
||||
0, /* sh_info */
|
||||
1, /* sh_addralign */
|
||||
0 /* sh_entsize */
|
||||
},
|
||||
{ /* .strtab */
|
||||
19, /* sh_name */
|
||||
SHT_STRTAB,
|
||||
0, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf64_Off)(sizeof(header64)+sizeof(sectionHeaders64)+2*sizeof(Elf64_Sym)+40), /* sh_offset */
|
||||
(Elf64_Xword)sizeof(entry), /* sh_size */
|
||||
0, /* sh_link */
|
||||
0, /* sh_info */
|
||||
1, /* sh_addralign */
|
||||
0 /* sh_entsize */
|
||||
},
|
||||
{ /* .rodata */
|
||||
27, /* sh_name */
|
||||
SHT_PROGBITS,
|
||||
SHF_ALLOC, /* sh_flags */
|
||||
0, /* sh_addr */
|
||||
(Elf64_Off)(sizeof(header64)+sizeof(sectionHeaders64)+2*sizeof(Elf64_Sym)+40+sizeof(entry)), /* sh_offset */
|
||||
0, /* sh_size */
|
||||
0, /* sh_link */
|
||||
0, /* sh_info */
|
||||
16, /* sh_addralign */
|
||||
0 /* sh_entsize */
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
* 64-bit symbol table
|
||||
* careful: different order of items compared with Elf32_sym!
|
||||
*/
|
||||
static Elf64_Sym symbols64[2]={
|
||||
{ /* STN_UNDEF */
|
||||
0
|
||||
},
|
||||
{ /* data entry point */
|
||||
1, /* st_name */
|
||||
ELF64_ST_INFO(STB_GLOBAL, STT_OBJECT),
|
||||
0, /* st_other */
|
||||
4, /* st_shndx=index of related section table entry */
|
||||
0, /* st_value */
|
||||
0 /* st_size */
|
||||
}
|
||||
};
|
||||
|
||||
#endif /* U_ELF64 */
|
||||
|
||||
/* entry[] have a leading NUL */
|
||||
entryOffset=1;
|
||||
|
||||
/* in the common code, count entryLength from after the NUL */
|
||||
entryLengthOffset=1;
|
||||
|
||||
newSuffix=".o";
|
||||
|
||||
#elif defined(U_WINDOWS)
|
||||
struct {
|
||||
IMAGE_FILE_HEADER fileHeader;
|
||||
IMAGE_SECTION_HEADER sections[2];
|
||||
|
@ -500,28 +851,46 @@ writeObjectCode(const char *filename, const char *destdir) {
|
|||
DWORD sizeofLongNames;
|
||||
char longNames[100];
|
||||
} symbolNames;
|
||||
FileStream *in, *out;
|
||||
DWORD i, entryLength, length, size;
|
||||
|
||||
/*
|
||||
* entry sometimes have a leading '_'
|
||||
* overwritten if entryOffset==0 depending on the target platform
|
||||
* see check for cpu below
|
||||
*/
|
||||
entry[0]='_';
|
||||
|
||||
newSuffix=".obj";
|
||||
#else
|
||||
# error "Unknown platform for CAN_GENERATE_OBJECTS."
|
||||
#endif
|
||||
|
||||
/* deal with options, files and the entry point name */
|
||||
getArchitecture(&cpu, &bits, &makeBigEndian);
|
||||
printf("genccode: --match-arch cpu=%hu bits=%hu big-endian=%hu\n", cpu, bits, makeBigEndian);
|
||||
#ifdef U_WINDOWS
|
||||
if(cpu==IMAGE_FILE_MACHINE_I386) {
|
||||
entryOffset=1;
|
||||
}
|
||||
#endif
|
||||
|
||||
in=T_FileStream_open(filename, "rb");
|
||||
if(in==NULL) {
|
||||
fprintf(stderr, "genccode: unable to open input file %s\n", filename);
|
||||
exit(U_FILE_ACCESS_ERROR);
|
||||
}
|
||||
size=T_FileStream_size(in);
|
||||
|
||||
/* entry have a leading '_' */
|
||||
entry[0]='_';
|
||||
getOutFilename(filename, destdir, buffer, entry+ICU_ENTRY_OFFSET, ".obj");
|
||||
getOutFilename(filename, destdir, buffer, entry+entryOffset, newSuffix);
|
||||
|
||||
if(options[kOptEntryPoint].doesOccur) {
|
||||
uprv_strcpy(entry+ICU_ENTRY_OFFSET, options[kOptEntryPoint].value);
|
||||
uprv_strcat(entry, "_dat");
|
||||
uprv_strcpy(entry+entryOffset, options[kOptEntryPoint].value);
|
||||
uprv_strcat(entry+entryOffset, "_dat");
|
||||
}
|
||||
/* turn dashes in the entry name into underscores */
|
||||
entryLength=(int32_t)uprv_strlen(entry);
|
||||
entryLength=(int32_t)uprv_strlen(entry+entryLengthOffset);
|
||||
for(i=0; i<entryLength; ++i) {
|
||||
if(entry[i]=='-') {
|
||||
entry[i]='_';
|
||||
if(entry[entryLengthOffset+i]=='-') {
|
||||
entry[entryLengthOffset+i]='_';
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -532,11 +901,59 @@ writeObjectCode(const char *filename, const char *destdir) {
|
|||
exit(U_FILE_ACCESS_ERROR);
|
||||
}
|
||||
|
||||
#ifdef U_ELF
|
||||
if(bits==32) {
|
||||
header32.e_ident[EI_DATA]= makeBigEndian ? ELFDATA2MSB : ELFDATA2LSB;
|
||||
header32.e_machine=cpu;
|
||||
|
||||
/* 16-align .rodata in the .o file, just in case */
|
||||
paddingSize=sectionHeaders32[4].sh_offset & 0xf;
|
||||
if(paddingSize!=0) {
|
||||
paddingSize=0x10-paddingSize;
|
||||
sectionHeaders32[4].sh_offset+=paddingSize;
|
||||
}
|
||||
|
||||
sectionHeaders32[4].sh_size=(Elf32_Word)size;
|
||||
|
||||
symbols32[1].st_size=(Elf32_Word)size;
|
||||
|
||||
/* write .o headers */
|
||||
T_FileStream_write(out, &header32, (int32_t)sizeof(header32));
|
||||
T_FileStream_write(out, sectionHeaders32, (int32_t)sizeof(sectionHeaders32));
|
||||
T_FileStream_write(out, symbols32, (int32_t)sizeof(symbols32));
|
||||
} else /* bits==64 */ {
|
||||
#ifdef U_ELF64
|
||||
header64.e_ident[EI_DATA]= makeBigEndian ? ELFDATA2MSB : ELFDATA2LSB;
|
||||
header64.e_machine=cpu;
|
||||
|
||||
/* 16-align .rodata in the .o file, just in case */
|
||||
paddingSize=sectionHeaders64[4].sh_offset & 0xf;
|
||||
if(paddingSize!=0) {
|
||||
paddingSize=0x10-paddingSize;
|
||||
sectionHeaders64[4].sh_offset+=paddingSize;
|
||||
}
|
||||
|
||||
sectionHeaders64[4].sh_size=(Elf64_Xword)size;
|
||||
|
||||
symbols64[1].st_size=(Elf64_Xword)size;
|
||||
|
||||
/* write .o headers */
|
||||
T_FileStream_write(out, &header64, (int32_t)sizeof(header64));
|
||||
T_FileStream_write(out, sectionHeaders64, (int32_t)sizeof(sectionHeaders64));
|
||||
T_FileStream_write(out, symbols64, (int32_t)sizeof(symbols64));
|
||||
#endif
|
||||
}
|
||||
|
||||
T_FileStream_write(out, sectionStrings, (int32_t)sizeof(sectionStrings));
|
||||
T_FileStream_write(out, entry, (int32_t)sizeof(entry));
|
||||
if(paddingSize!=0) {
|
||||
T_FileStream_write(out, padding, paddingSize);
|
||||
}
|
||||
#elif defined(U_WINDOWS)
|
||||
/* populate the .obj headers */
|
||||
uprv_memset(&objHeader, 0, sizeof(objHeader));
|
||||
uprv_memset(&symbols, 0, sizeof(symbols));
|
||||
uprv_memset(&symbolNames, 0, sizeof(symbolNames));
|
||||
size=T_FileStream_size(in);
|
||||
|
||||
/* write the linker export directive */
|
||||
uprv_strcpy(objHeader.linkerOptions, "-export:");
|
||||
|
@ -547,9 +964,9 @@ writeObjectCode(const char *filename, const char *destdir) {
|
|||
length+=6;
|
||||
|
||||
/* set the file header */
|
||||
objHeader.fileHeader.Machine=ICU_OBJECT_MACHINE_TYPE;
|
||||
objHeader.fileHeader.Machine=cpu;
|
||||
objHeader.fileHeader.NumberOfSections=2;
|
||||
objHeader.fileHeader.TimeDateStamp=time(NULL);
|
||||
objHeader.fileHeader.TimeDateStamp=(DWORD)time(NULL);
|
||||
objHeader.fileHeader.PointerToSymbolTable=IMAGE_SIZEOF_FILE_HEADER+2*IMAGE_SIZEOF_SECTION_HEADER+length+size; /* start of symbol table */
|
||||
objHeader.fileHeader.NumberOfSymbols=1;
|
||||
|
||||
|
@ -580,6 +997,9 @@ writeObjectCode(const char *filename, const char *destdir) {
|
|||
|
||||
/* write the file header and the linker options section */
|
||||
T_FileStream_write(out, &objHeader, objHeader.sections[1].PointerToRawData);
|
||||
#else
|
||||
# error "Unknown platform for CAN_GENERATE_OBJECTS."
|
||||
#endif
|
||||
|
||||
/* copy the data file into section 2 */
|
||||
for(;;) {
|
||||
|
@ -590,9 +1010,11 @@ writeObjectCode(const char *filename, const char *destdir) {
|
|||
T_FileStream_write(out, buffer, (int32_t)length);
|
||||
}
|
||||
|
||||
#ifdef U_WINDOWS
|
||||
/* write the symbol table */
|
||||
T_FileStream_write(out, symbols, IMAGE_SIZEOF_SYMBOL);
|
||||
T_FileStream_write(out, &symbolNames, symbolNames.sizeofLongNames);
|
||||
#endif
|
||||
|
||||
if(T_FileStream_error(in)) {
|
||||
fprintf(stderr, "genccode: file read error while generating from file %s\n", filename);
|
||||
|
@ -606,7 +1028,6 @@ writeObjectCode(const char *filename, const char *destdir) {
|
|||
|
||||
T_FileStream_close(out);
|
||||
T_FileStream_close(in);
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
|
@ -785,4 +1206,3 @@ write8str(FileStream *out, uint8_t byte) {
|
|||
T_FileStream_writeLine(out, s);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
Loading…
Add table
Reference in a new issue