newlib: split cmdline params

git-svn-id: svn://kolibrios.org@5190 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2014-11-27 01:02:55 +00:00
parent 32530313f2
commit d6244d0651
6 changed files with 168 additions and 48 deletions

View File

@ -43,9 +43,6 @@
#include "egl_dri2.h"
void* load_library(const char *name);
void *get_proc_address(void *module, char *proc_name);
int (*blit_bitmap_from_handle)(bitmap_t *bitmap, uint32_t handle);
void (*blit_set_bo_handle)(bitmap_t *bitmap, int handle);
int (*blit_blit_tex)(bitmap_t *bitmap, int scale, int vsync, int dst_x, int dst_y,

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@ -868,7 +868,7 @@
/* #undef _GLIBCXX_USE_SYSCTL_HW_NCPU */
/* Define if code specialized for wchar_t should be used. */
#define _GLIBCXX_USE_WCHAR_T 1
//#define _GLIBCXX_USE_WCHAR_T 1
/* Define to 1 if a verbose library is built, or 0 otherwise. */
#define _GLIBCXX_VERBOSE 1

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@ -1332,7 +1332,7 @@ namespace std
/* #undef _GLIBCXX_USE_SYSCTL_HW_NCPU */
/* Define if code specialized for wchar_t should be used. */
#define _GLIBCXX_USE_WCHAR_T 1
//#define _GLIBCXX_USE_WCHAR_T 1
/* Define to 1 if a verbose library is built, or 0 otherwise. */
#define _GLIBCXX_VERBOSE 1

View File

@ -25,19 +25,20 @@ struct app_hdr
int (*main)(int argc, char **argv, char **envp);
};
int _argc;
char **_argv;
void _pei386_runtime_relocator (void);
void init_loader(void *libc_image);
void init_reent();
int link_app();
void* get_entry_point(void *raw);
int (*entry)(int, char **, char **);
void init_loader(void *libc_image);
char __appcwd[1024];
int __appcwdlen;
char* __appenv;
int __appenv_size;
void init_reent();
jmp_buf loader_env;
extern char _tls_map[128];
void __attribute__((noreturn))
__thread_startup (int (*entry)(void*), void *param,
@ -45,7 +46,7 @@ __thread_startup (int (*entry)(void*), void *param,
{
int retval;
asm volatile ( "xchgw %bx, %bx");
// asm volatile ( "xchgw %bx, %bx");
__asm__ __volatile__( // save stack limits
"movl %0, %%fs:8 \n\t" // use TLS
@ -64,29 +65,129 @@ char * __libc_getenv(const char *name)
return NULL;
}
void _pei386_runtime_relocator (void);
int link_app();
static int split_cmdline(char *cmdline, char **argv)
{
enum quote_state
{
QUOTE_NONE, /* no " active in current parm */
QUOTE_DELIMITER, /* " was first char and must be last */
QUOTE_STARTED /* " was seen, look for a match */
};
char __appcwd[1024];
int __appcwdlen;
char* __appenv;
int __appenv_size;
enum quote_state state;
unsigned int argc;
char *p = cmdline;
char *new_arg, *start;
static char *arg[2];
argc = 0;
extern char _tls_map[128];
for(;;)
{
/* skip over spaces and tabs */
if ( *p )
{
while (*p == ' ' || *p == '\t')
++p;
}
if (*p == '\0')
break;
state = QUOTE_NONE;
if( *p == '\"' )
{
p++;
state = QUOTE_DELIMITER;
}
new_arg = start = p;
for (;;)
{
if( *p == '\"' )
{
p++;
if( state == QUOTE_NONE )
{
state = QUOTE_STARTED;
}
else
{
state = QUOTE_NONE;
}
continue;
}
if( *p == ' ' || *p == '\t' )
{
if( state == QUOTE_NONE )
{
break;
}
}
if( *p == '\0' )
break;
if( *p == '\\' )
{
if( p[1] == '\"' )
{
++p;
if( p[-2] == '\\' )
{
continue;
}
}
}
if( argv )
{
*(new_arg++) = *p;
}
++p;
};
if( argv )
{
argv[ argc ] = start;
++argc;
/*
The *new = '\0' is req'd in case there was a \" to "
translation. It must be after the *p check against
'\0' because new and p could point to the same char
in which case the scan would be terminated too soon.
*/
if( *p == '\0' )
{
*new_arg = '\0';
break;
}
*new_arg = '\0';
++p;
}
else
{
++argc;
if( *p == '\0' )
{
break;
}
++p;
}
}
return argc;
};
void __attribute__((noreturn))
libc_crt_startup (void *libc_base)
{
struct app_hdr *header = NULL;
int len;
char *p;
void *my_app;
int retval = 0;
char **argv;
int argc;
_pei386_runtime_relocator();
memset(_tls_map, 0xFF, 32*4);
@ -106,18 +207,23 @@ libc_crt_startup (void *libc_base)
memcpy(__appcwd, header->path, __appcwdlen);
set_cwd(__appcwd);
arg[0] = header->path;
if( header->cmdline[0] != 0)
{
_argc = 2;
arg[1] = header->cmdline;
argc = split_cmdline(header->cmdline, NULL) + 1;
argv = alloca((argc+1)*sizeof(char*));
argv[0] = header->path;
split_cmdline(header->cmdline, argv + 1);
}
else _argc = 1;
else
{
argc = 1;
argv = alloca((argc+1)*sizeof(char*));
argv[0] = header->path;
}
argv[argc] = NULL;
_argv = arg;
retval = header->main(_argc, _argv, NULL);
retval = header->main(argc, argv, NULL);
done:
exit (retval);
}

View File

@ -470,6 +470,14 @@ static inline void Blit(void *bitmap, int dst_x, int dst_y,
::"a"(73),"b"(0),"c"(&bc.dstx));
};
void* load_library(const char *name);
void* get_proc_address(void *handle, const char *proc_name);
void enumerate_libraries(int (*callback)(void *handle, const char* name,
uint32_t base, uint32_t size, void *user_data),
void *user_data);
#ifdef __cplusplus
}
#endif

View File

@ -53,8 +53,8 @@ struct tag_module
uint32_t refcount;
void *start;
uint32_t end;
char *start;
char *end;
void *entry;
@ -70,7 +70,6 @@ typedef struct
int path_len;
}dll_path_t;
module_t* load_library(const char *name);
LIST_HEAD(path_list);
@ -231,7 +230,7 @@ void init_loader(void *libc_image)
nt->OptionalHeader.DataDirectory[0].VirtualAddress);
libc_dll.start = libc_image;
libc_dll.end = MakePtr(uint32_t,libc_image, nt->OptionalHeader.SizeOfImage);
libc_dll.end = MakePtr(char*,libc_image, nt->OptionalHeader.SizeOfImage);
libc_dll.img_hdr = nt;
libc_dll.img_sec = MakePtr(PIMAGE_SECTION_HEADER,nt, sizeof(IMAGE_NT_HEADERS32));
@ -342,8 +341,6 @@ void* create_image(void *raw)
return img_base;
};
//static jmp_buf loader_env;
//static loader_recursion;
int link_image(void *img_base, PIMAGE_IMPORT_DESCRIPTOR imp)
{
@ -457,7 +454,6 @@ int link_image(void *img_base, PIMAGE_IMPORT_DESCRIPTOR imp)
};
};
minn = 0;
maxn = exp->NumberOfNames - 1;
while (minn <= maxn)
@ -581,9 +577,10 @@ void* get_entry_point(void *raw)
};
void *get_proc_address(module_t *module, char *proc_name)
void *get_proc_address(void *handle, const char *proc_name)
{
module_t *module = handle;
PIMAGE_DOS_HEADER expdos;
PIMAGE_NT_HEADERS32 expnt;
PIMAGE_EXPORT_DIRECTORY exp;
@ -682,7 +679,7 @@ static void *load_lib_internal(const char *path)
return img_base;
}
module_t* load_library(const char *name)
void* load_library(const char *name)
{
PIMAGE_DOS_HEADER dos;
PIMAGE_NT_HEADERS32 nt;
@ -738,10 +735,10 @@ module_t* load_library(const char *name)
if( unlikely(img_base == NULL) )
{
printf("unable to load %s\n", name);
return NULL;
return 0;
};
module = (module_t*)malloc(sizeof(module_t));
module = malloc(sizeof(module_t));
if(unlikely(module == NULL))
{
@ -762,7 +759,7 @@ module_t* load_library(const char *name)
exp = MakePtr(PIMAGE_EXPORT_DIRECTORY, img_base,
nt->OptionalHeader.DataDirectory[0].VirtualAddress);
module->end = MakePtr(uint32_t,img_base, nt->OptionalHeader.SizeOfImage);
module->end = MakePtr(char*,img_base, nt->OptionalHeader.SizeOfImage);
module->img_hdr = nt;
module->img_sec = MakePtr(PIMAGE_SECTION_HEADER,nt, sizeof(IMAGE_NT_HEADERS32));
@ -802,7 +799,19 @@ err2:
err1:
user_free(img_base);
return NULL;
};
void enumerate_libraries(int (*callback)(void *handle, const char* name,
uint32_t base, uint32_t size, void *user_data),
void *user_data)
{
module_t *mod = &libc_dll;
do
{
if(0 == callback(mod, mod->img_name, (uint32_t)mod->start,
mod->end - mod->start, user_data))
break;
mod = (module_t*)mod->list.next;
}while(mod != &libc_dll);
}