diff options
Diffstat (limited to 'src/mesa/glapi/glapi_getproc.c')
| -rw-r--r-- | src/mesa/glapi/glapi_getproc.c | 215 |
1 files changed, 192 insertions, 23 deletions
diff --git a/src/mesa/glapi/glapi_getproc.c b/src/mesa/glapi/glapi_getproc.c index a0a6ccca098..5be6d65b562 100644 --- a/src/mesa/glapi/glapi_getproc.c +++ b/src/mesa/glapi/glapi_getproc.c @@ -43,27 +43,6 @@ #include "glapi/glapitable.h" -static void -fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset); - - -/** - * strdup() is actually not a standard ANSI C or POSIX routine. - * Irix will not define it if ANSI mode is in effect. - */ -static char * -str_dup(const char *str) -{ - char *copy; - copy = (char*) malloc(strlen(str) + 1); - if (!copy) - return NULL; - strcpy(copy, str); - return copy; -} - - - #if defined(USE_X64_64_ASM) && defined(GLX_USE_TLS) # define DISPATCH_FUNCTION_SIZE 16 #elif defined(USE_X86_ASM) @@ -121,7 +100,6 @@ get_static_proc_offset(const char *funcName) } -#if !defined(XFree86Server) && !defined(XGLServer) #ifdef USE_X86_ASM #if defined( GLX_USE_TLS ) @@ -134,6 +112,8 @@ extern const GLubyte gl_dispatch_functions_start[]; #endif /* USE_X86_ASM */ +#if !defined(XFree86Server) && !defined(XGLServer) + /** * Return dispatch function address for the named static (built-in) function. * Return NULL if function not found. @@ -182,6 +162,172 @@ get_static_proc_name( GLuint offset ) +#if defined(PTHREADS) || defined(GLX_USE_TLS) + +/** + * Perform platform-specific GL API entry-point fixups. + */ +static void +init_glapi_relocs( void ) +{ +#if defined(USE_X86_ASM) && defined(GLX_USE_TLS) && !defined(GLX_X86_READONLY_TEXT) + extern unsigned long _x86_get_dispatch(void); + char run_time_patch[] = { + 0x65, 0xa1, 0, 0, 0, 0 /* movl %gs:0,%eax */ + }; + GLuint *offset = (GLuint *) &run_time_patch[2]; /* 32-bits for x86/32 */ + const GLubyte * const get_disp = (const GLubyte *) run_time_patch; + GLubyte * curr_func = (GLubyte *) gl_dispatch_functions_start; + + *offset = _x86_get_dispatch(); + while ( curr_func != (GLubyte *) gl_dispatch_functions_end ) { + (void) memcpy( curr_func, get_disp, sizeof(run_time_patch)); + curr_func += DISPATCH_FUNCTION_SIZE; + } +#endif +#ifdef USE_SPARC_ASM + extern void __glapi_sparc_icache_flush(unsigned int *); + static const unsigned int template[] = { +#ifdef GLX_USE_TLS + 0x05000000, /* sethi %hi(_glapi_tls_Dispatch), %g2 */ + 0x8730e00a, /* srl %g3, 10, %g3 */ + 0x8410a000, /* or %g2, %lo(_glapi_tls_Dispatch), %g2 */ +#ifdef __arch64__ + 0xc259c002, /* ldx [%g7 + %g2], %g1 */ + 0xc2584003, /* ldx [%g1 + %g3], %g1 */ +#else + 0xc201c002, /* ld [%g7 + %g2], %g1 */ + 0xc2004003, /* ld [%g1 + %g3], %g1 */ +#endif + 0x81c04000, /* jmp %g1 */ + 0x01000000, /* nop */ +#else +#ifdef __arch64__ + 0x03000000, /* 64-bit 0x00 --> sethi %hh(_glapi_Dispatch), %g1 */ + 0x05000000, /* 64-bit 0x04 --> sethi %lm(_glapi_Dispatch), %g2 */ + 0x82106000, /* 64-bit 0x08 --> or %g1, %hm(_glapi_Dispatch), %g1 */ + 0x8730e00a, /* 64-bit 0x0c --> srl %g3, 10, %g3 */ + 0x83287020, /* 64-bit 0x10 --> sllx %g1, 32, %g1 */ + 0x82004002, /* 64-bit 0x14 --> add %g1, %g2, %g1 */ + 0xc2586000, /* 64-bit 0x18 --> ldx [%g1 + %lo(_glapi_Dispatch)], %g1 */ +#else + 0x03000000, /* 32-bit 0x00 --> sethi %hi(_glapi_Dispatch), %g1 */ + 0x8730e00a, /* 32-bit 0x04 --> srl %g3, 10, %g3 */ + 0xc2006000, /* 32-bit 0x08 --> ld [%g1 + %lo(_glapi_Dispatch)], %g1 */ +#endif + 0x80a06000, /* --> cmp %g1, 0 */ + 0x02800005, /* --> be +4*5 */ + 0x01000000, /* --> nop */ +#ifdef __arch64__ + 0xc2584003, /* 64-bit --> ldx [%g1 + %g3], %g1 */ +#else + 0xc2004003, /* 32-bit --> ld [%g1 + %g3], %g1 */ +#endif + 0x81c04000, /* --> jmp %g1 */ + 0x01000000, /* --> nop */ +#ifdef __arch64__ + 0x9de3bf80, /* 64-bit --> save %sp, -128, %sp */ +#else + 0x9de3bfc0, /* 32-bit --> save %sp, -64, %sp */ +#endif + 0xa0100003, /* --> mov %g3, %l0 */ + 0x40000000, /* --> call _glapi_get_dispatch */ + 0x01000000, /* --> nop */ + 0x82100008, /* --> mov %o0, %g1 */ + 0x86100010, /* --> mov %l0, %g3 */ + 0x10bffff7, /* --> ba -4*9 */ + 0x81e80000, /* --> restore */ +#endif + }; +#ifdef GLX_USE_TLS + extern unsigned int __glapi_sparc_tls_stub; + extern unsigned long __glapi_sparc_get_dispatch(void); + unsigned int *code = &__glapi_sparc_tls_stub; + unsigned long dispatch = __glapi_sparc_get_dispatch(); +#else + extern unsigned int __glapi_sparc_pthread_stub; + unsigned int *code = &__glapi_sparc_pthread_stub; + unsigned long dispatch = (unsigned long) &_glapi_Dispatch; + unsigned long call_dest = (unsigned long ) &_glapi_get_dispatch; + int idx; +#endif + +#if defined(GLX_USE_TLS) + code[0] = template[0] | (dispatch >> 10); + code[1] = template[1]; + __glapi_sparc_icache_flush(&code[0]); + code[2] = template[2] | (dispatch & 0x3ff); + code[3] = template[3]; + __glapi_sparc_icache_flush(&code[2]); + code[4] = template[4]; + code[5] = template[5]; + __glapi_sparc_icache_flush(&code[4]); + code[6] = template[6]; + __glapi_sparc_icache_flush(&code[6]); +#else +#if defined(__arch64__) + code[0] = template[0] | (dispatch >> (32 + 10)); + code[1] = template[1] | ((dispatch & 0xffffffff) >> 10); + __glapi_sparc_icache_flush(&code[0]); + code[2] = template[2] | ((dispatch >> 32) & 0x3ff); + code[3] = template[3]; + __glapi_sparc_icache_flush(&code[2]); + code[4] = template[4]; + code[5] = template[5]; + __glapi_sparc_icache_flush(&code[4]); + code[6] = template[6] | (dispatch & 0x3ff); + idx = 7; +#else + code[0] = template[0] | (dispatch >> 10); + code[1] = template[1]; + __glapi_sparc_icache_flush(&code[0]); + code[2] = template[2] | (dispatch & 0x3ff); + idx = 3; +#endif + code[idx + 0] = template[idx + 0]; + __glapi_sparc_icache_flush(&code[idx - 1]); + code[idx + 1] = template[idx + 1]; + code[idx + 2] = template[idx + 2]; + __glapi_sparc_icache_flush(&code[idx + 1]); + code[idx + 3] = template[idx + 3]; + code[idx + 4] = template[idx + 4]; + __glapi_sparc_icache_flush(&code[idx + 3]); + code[idx + 5] = template[idx + 5]; + code[idx + 6] = template[idx + 6]; + __glapi_sparc_icache_flush(&code[idx + 5]); + code[idx + 7] = template[idx + 7]; + code[idx + 8] = template[idx + 8] | + (((call_dest - ((unsigned long) &code[idx + 8])) + >> 2) & 0x3fffffff); + __glapi_sparc_icache_flush(&code[idx + 7]); + code[idx + 9] = template[idx + 9]; + code[idx + 10] = template[idx + 10]; + __glapi_sparc_icache_flush(&code[idx + 9]); + code[idx + 11] = template[idx + 11]; + code[idx + 12] = template[idx + 12]; + __glapi_sparc_icache_flush(&code[idx + 11]); + code[idx + 13] = template[idx + 13]; + __glapi_sparc_icache_flush(&code[idx + 13]); +#endif +#endif +} + +void +init_glapi_relocs_once( void ) +{ + static pthread_once_t once_control = PTHREAD_ONCE_INIT; + pthread_once( & once_control, init_glapi_relocs ); +} + +#else + +void +init_glapi_relocs_once( void ) { } + +#endif /* defined(PTHREADS) || defined(GLX_USE_TLS) */ + + + /********************************************************************** * Extension function management. */ @@ -239,6 +385,9 @@ static GLuint NumExtEntryPoints = 0; extern void __glapi_sparc_icache_flush(unsigned int *); #endif +static void +fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset); + /** * Generate a dispatch function (entrypoint) which jumps through * the given slot number (offset) in the current dispatch table. @@ -263,7 +412,9 @@ generate_entrypoint(GLuint functionOffset) } return (_glapi_proc) code; -#elif defined(USE_SPARC_ASM) && (defined(PTHREADS) || defined(GLX_USE_TLS)) +#elif defined(USE_SPARC_ASM) + +#if defined(PTHREADS) || defined(GLX_USE_TLS) static const unsigned int template[] = { 0x07000000, /* sethi %hi(0), %g3 */ 0x8210000f, /* mov %o7, %g1 */ @@ -289,6 +440,8 @@ generate_entrypoint(GLuint functionOffset) __glapi_sparc_icache_flush(&code[2]); } return (_glapi_proc) code; +#endif + #else (void) functionOffset; return NULL; @@ -333,6 +486,22 @@ fill_in_entrypoint_offset(_glapi_proc entrypoint, GLuint offset) /** + * strdup() is actually not a standard ANSI C or POSIX routine. + * Irix will not define it if ANSI mode is in effect. + */ +static char * +str_dup(const char *str) +{ + char *copy; + copy = (char*) malloc(strlen(str) + 1); + if (!copy) + return NULL; + strcpy(copy, str); + return copy; +} + + +/** * Generate new entrypoint * * Use a temporary dispatch offset of ~0 (i.e. -1). Later, when the driver |