generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

support obj_int_extract on cygwin

Browse Source 
cygwin doesn't support _sopen. drop down to the lowest common
denominator and merge main for all platforms. this also opens the door
for supporting multiple object formats with a single binary.

Change-Id: I7cd45091639d447434e6d5db2e19cfc9988f8630
This commit is contained in:
Johann 2011-03-31 16:35:22 -04:00
parent 9d138379a2
commit fd7040d2b6
1 changed files with 38 additions and 172 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

210
build/make/obj_int_extract.c
View File

@ -9,25 +9,13 @@
*/ */
#include <stdarg.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
#include "vpx_config.h" #include "vpx_config.h"
#if defined(_MSC_VER) || defined(__MINGW32__)
#include <io.h>
#include <share.h>
#include "vpx/vpx_integer.h" #include "vpx/vpx_integer.h"
#else
#include <stdint.h>
#include <unistd.h>
#endif
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdarg.h>
typedef enum typedef enum
{ {
@ -47,7 +35,6 @@ int log_msg(const char *fmt, ...)
} }
#if defined(__GNUC__) && __GNUC__ #if defined(__GNUC__) && __GNUC__
#if defined(__MACH__) #if defined(__MACH__)
#include <mach-o/loader.h> #include <mach-o/loader.h>
@ -225,73 +212,6 @@ bail:
} }
int main(int argc, char **argv)
{
int fd;
char *f;
struct stat stat_buf;
uint8_t *file_buf;
int res;
if (argc < 2 || argc > 3)
{
fprintf(stderr, "Usage: %s [output format] <obj file>\n\n", argv[0]);
fprintf(stderr, " <obj file>\tMachO format object file to parse\n");
fprintf(stderr, "Output Formats:\n");
fprintf(stderr, " gas - compatible with GNU assembler\n");
fprintf(stderr, " rvds - compatible with armasm\n");
goto bail;
}
f = argv[2];
if (!((!strcmp(argv[1], "rvds")) || (!strcmp(argv[1], "gas"))))
f = argv[1];
fd = open(f, O_RDONLY);
if (fd < 0)
{
perror("Unable to open file");
goto bail;
}
if (fstat(fd, &stat_buf))
{
perror("stat");
goto bail;
}
file_buf = malloc(stat_buf.st_size);
if (!file_buf)
{
perror("malloc");
goto bail;
}
if (read(fd, file_buf, stat_buf.st_size) != stat_buf.st_size)
{
perror("read");
goto bail;
}
if (close(fd))
{
perror("close");
goto bail;
}
res = parse_macho(file_buf, stat_buf.st_size);
free(file_buf);
if (!res)
return EXIT_SUCCESS;
bail:
return EXIT_FAILURE;
}
#elif defined(__ELF__) #elif defined(__ELF__)
#include "elf.h" #include "elf.h"
@ -740,96 +660,24 @@ bail:
return 1; return 1;
} }
int main(int argc, char **argv)
{
int fd;
output_fmt_t mode;
char *f;
struct stat stat_buf;
uint8_t *file_buf;
int res;
if (argc < 2 || argc > 3)
{
fprintf(stderr, "Usage: %s [output format] <obj file>\n\n", argv[0]);
fprintf(stderr, " <obj file>\tELF format object file to parse\n");
fprintf(stderr, "Output Formats:\n");
fprintf(stderr, " gas - compatible with GNU assembler\n");
fprintf(stderr, " rvds - compatible with armasm\n");
goto bail;
}
f = argv[2];
if (!strcmp(argv[1], "rvds"))
mode = OUTPUT_FMT_RVDS;
else if (!strcmp(argv[1], "gas"))
mode = OUTPUT_FMT_GAS;
else
f = argv[1];
fd = open(f, O_RDONLY);
if (fd < 0)
{
perror("Unable to open file");
goto bail;
}
if (fstat(fd, &stat_buf))
{
perror("stat");
goto bail;
}
file_buf = malloc(stat_buf.st_size);
if (!file_buf)
{
perror("malloc");
goto bail;
}
if (read(fd, file_buf, stat_buf.st_size) != stat_buf.st_size)
{
perror("read");
goto bail;
}
if (close(fd))
{
perror("close");
goto bail;
}
res = parse_elf(file_buf, stat_buf.st_size, mode);
free(file_buf);
if (!res)
return EXIT_SUCCESS;
bail:
return EXIT_FAILURE;
}
#endif
#endif #endif
#endif /* defined(__GNUC__) && __GNUC__ */
#if defined(_MSC_VER) || defined(__MINGW32__) #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__CYGWIN__)
/* See "Microsoft Portable Executable and Common Object File Format Specification" /* See "Microsoft Portable Executable and Common Object File Format Specification"
for reference. for reference.
*/ */
#define get_le32(x) ((*(x)) | (*(x+1)) << 8 |(*(x+2)) << 16 | (*(x+3)) << 24 ) #define get_le32(x) ((*(x)) | (*(x+1)) << 8 |(*(x+2)) << 16 | (*(x+3)) << 24 )
#define get_le16(x) ((*(x)) | (*(x+1)) << 8) #define get_le16(x) ((*(x)) | (*(x+1)) << 8)
int parse_coff(unsigned __int8 *buf, size_t sz) int parse_coff(uint8_t *buf, size_t sz)
{ {
unsigned int nsections, symtab_ptr, symtab_sz, strtab_ptr; unsigned int nsections, symtab_ptr, symtab_sz, strtab_ptr;
unsigned int sectionrawdata_ptr; unsigned int sectionrawdata_ptr;
unsigned int i; unsigned int i;
unsigned __int8 *ptr; uint8_t *ptr;
unsigned __int32 symoffset; uint32_t symoffset;
char **sectionlist; //this array holds all section names in their correct order. char **sectionlist; //this array holds all section names in their correct order.
//it is used to check if the symbol is in .bss or .data section. //it is used to check if the symbol is in .bss or .data section.
@ -907,7 +755,7 @@ int parse_coff(unsigned __int8 *buf, size_t sz)
for (i = 0; i < symtab_sz; i++) for (i = 0; i < symtab_sz; i++)
{ {
__int16 section = get_le16(ptr + 12); //section number int16_t section = get_le16(ptr + 12); //section number
if (section > 0 && ptr[16] == 2) if (section > 0 && ptr[16] == 2)
{ {
@ -978,20 +826,21 @@ bail:
return 1; return 1;
} }
#endif /* defined(_MSC_VER) || defined(__MINGW32__) || defined(__CYGWIN__) */
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
int fd; output_fmt_t mode = OUTPUT_FMT_PLAIN;
output_fmt_t mode;
const char *f; const char *f;
struct _stat stat_buf; uint8_t *file_buf;
unsigned __int8 *file_buf;
int res; int res;
FILE *fp;
long int file_size;
if (argc < 2 || argc > 3) if (argc < 2 || argc > 3)
{ {
fprintf(stderr, "Usage: %s [output format] <obj file>\n\n", argv[0]); fprintf(stderr, "Usage: %s [output format] <obj file>\n\n", argv[0]);
fprintf(stderr, " <obj file>\tELF format object file to parse\n"); fprintf(stderr, " <obj file>\tobject file to parse\n");
fprintf(stderr, "Output Formats:\n"); fprintf(stderr, "Output Formats:\n");
fprintf(stderr, " gas - compatible with GNU assembler\n"); fprintf(stderr, " gas - compatible with GNU assembler\n");
fprintf(stderr, " rvds - compatible with armasm\n"); fprintf(stderr, " rvds - compatible with armasm\n");
@ -1007,15 +856,22 @@ int main(int argc, char **argv)
else else
f = argv[1]; f = argv[1];
fd = _sopen(f, _O_BINARY, _SH_DENYNO, _S_IREAD | _S_IWRITE); fp = fopen(f, "rb");
if (_fstat(fd, &stat_buf)) if (!fp)
{
perror("Unable to open file");
goto bail;
}
if (fseek(fp, 0, SEEK_END))
{ {
perror("stat"); perror("stat");
goto bail; goto bail;
} }
file_buf = malloc(stat_buf.st_size); file_size = ftell(fp);
file_buf = malloc(file_size);
if (!file_buf) if (!file_buf)
{ {
@ -1023,19 +879,30 @@ int main(int argc, char **argv)
goto bail; goto bail;
} }
if (_read(fd, file_buf, stat_buf.st_size) != stat_buf.st_size) rewind(fp);
if (fread(file_buf, sizeof(char), file_size, fp) != file_size)
{ {
perror("read"); perror("read");
goto bail; goto bail;
} }
if (_close(fd)) if (fclose(fp))
{ {
perror("close"); perror("close");
goto bail; goto bail;
} }
res = parse_coff(file_buf, stat_buf.st_size); #if defined(__GNUC__) && __GNUC__
#if defined(__MACH__)
res = parse_macho(file_buf, file_size);
#elif defined(__ELF__)
res = parse_elf(file_buf, file_size, mode);
#endif
#endif
#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__CYGWIN__)
res = parse_coff(file_buf, file_size);
#endif
free(file_buf); free(file_buf);
@ -1045,4 +912,3 @@ int main(int argc, char **argv)
bail: bail:
return EXIT_FAILURE; return EXIT_FAILURE;
} }
#endif