diff options
Diffstat (limited to 'src/mapi/glapi/gen/gl_x86-64_asm.py')
| -rw-r--r-- | src/mapi/glapi/gen/gl_x86-64_asm.py | 546 |
1 files changed, 273 insertions, 273 deletions
diff --git a/src/mapi/glapi/gen/gl_x86-64_asm.py b/src/mapi/glapi/gen/gl_x86-64_asm.py index 9a085eaec5b..a3548c2951e 100644 --- a/src/mapi/glapi/gen/gl_x86-64_asm.py +++ b/src/mapi/glapi/gen/gl_x86-64_asm.py @@ -30,306 +30,306 @@ import gl_XML, glX_XML import sys, getopt, copy def should_use_push(registers): - for [reg, offset] in registers: - if reg[1:4] == "xmm": - return 0 + for [reg, offset] in registers: + if reg[1:4] == "xmm": + return 0 - N = len(registers) - return (N & 1) != 0 + N = len(registers) + return (N & 1) != 0 def local_size(registers): - # The x86-64 ABI says "the value (%rsp - 8) is always a multiple of - # 16 when control is transfered to the function entry point." This - # means that the local stack usage must be (16*N)+8 for some value - # of N. (16*N)+8 = (8*(2N))+8 = 8*(2N+1). As long as N is odd, we - # meet this requirement. + # The x86-64 ABI says "the value (%rsp - 8) is always a multiple of + # 16 when control is transfered to the function entry point." This + # means that the local stack usage must be (16*N)+8 for some value + # of N. (16*N)+8 = (8*(2N))+8 = 8*(2N+1). As long as N is odd, we + # meet this requirement. - N = (len(registers) | 1) - return 8*N + N = (len(registers) | 1) + return 8*N def save_all_regs(registers): - adjust_stack = 0 - if not should_use_push(registers): - adjust_stack = local_size(registers) - print '\tsubq\t$%u, %%rsp' % (adjust_stack) + adjust_stack = 0 + if not should_use_push(registers): + adjust_stack = local_size(registers) + print '\tsubq\t$%u, %%rsp' % (adjust_stack) - for [reg, stack_offset] in registers: - save_reg( reg, stack_offset, adjust_stack ) - return + for [reg, stack_offset] in registers: + save_reg( reg, stack_offset, adjust_stack ) + return def restore_all_regs(registers): - adjust_stack = 0 - if not should_use_push(registers): - adjust_stack = local_size(registers) + adjust_stack = 0 + if not should_use_push(registers): + adjust_stack = local_size(registers) - temp = copy.deepcopy(registers) - while len(temp): - [reg, stack_offset] = temp.pop() - restore_reg(reg, stack_offset, adjust_stack) + temp = copy.deepcopy(registers) + while len(temp): + [reg, stack_offset] = temp.pop() + restore_reg(reg, stack_offset, adjust_stack) - if adjust_stack: - print '\taddq\t$%u, %%rsp' % (adjust_stack) - return + if adjust_stack: + print '\taddq\t$%u, %%rsp' % (adjust_stack) + return def save_reg(reg, offset, use_move): - if use_move: - if offset == 0: - print '\tmovq\t%s, (%%rsp)' % (reg) - else: - print '\tmovq\t%s, %u(%%rsp)' % (reg, offset) - else: - print '\tpushq\t%s' % (reg) + if use_move: + if offset == 0: + print '\tmovq\t%s, (%%rsp)' % (reg) + else: + print '\tmovq\t%s, %u(%%rsp)' % (reg, offset) + else: + print '\tpushq\t%s' % (reg) - return + return def restore_reg(reg, offset, use_move): - if use_move: - if offset == 0: - print '\tmovq\t(%%rsp), %s' % (reg) - else: - print '\tmovq\t%u(%%rsp), %s' % (offset, reg) - else: - print '\tpopq\t%s' % (reg) + if use_move: + if offset == 0: + print '\tmovq\t(%%rsp), %s' % (reg) + else: + print '\tmovq\t%u(%%rsp), %s' % (offset, reg) + else: + print '\tpopq\t%s' % (reg) - return + return class PrintGenericStubs(gl_XML.gl_print_base): - def __init__(self): - gl_XML.gl_print_base.__init__(self) - - self.name = "gl_x86-64_asm.py (from Mesa)" - self.license = license.bsd_license_template % ("(C) Copyright IBM Corporation 2005", "IBM") - return - - - def get_stack_size(self, f): - size = 0 - for p in f.parameterIterator(): - size += p.get_stack_size() - - return size - - - def printRealHeader(self): - print "/* If we build with gcc's -fvisibility=hidden flag, we'll need to change" - print " * the symbol visibility mode to 'default'." - print ' */' - print '' - print '#include "x86/assyntax.h"' - print '' - print '#ifdef __GNUC__' - print '# pragma GCC visibility push(default)' - print '# define HIDDEN(x) .hidden x' - print '#else' - print '# define HIDDEN(x)' - print '#endif' - print '' - print '# if defined(USE_MGL_NAMESPACE)' - print '# define GL_PREFIX(n) GLNAME(CONCAT(mgl,n))' - print '# define _glapi_Dispatch _mglapi_Dispatch' - print '# else' - print '# define GL_PREFIX(n) GLNAME(CONCAT(gl,n))' - print '# endif' - print '' - print '#if defined(HAVE_PTHREAD) || defined(_WIN32)' - print '# define THREADS' - print '#endif' - print '' - print '\t.text' - print '' - print '#ifdef GLX_USE_TLS' - print '' - print '\t.globl _x86_64_get_get_dispatch; HIDDEN(_x86_64_get_get_dispatch)' - print '_x86_64_get_get_dispatch:' - print '\tlea\t_x86_64_get_dispatch(%rip), %rax' - print '\tret' - print '' - print '\t.p2align\t4,,15' - print '_x86_64_get_dispatch:' - print '\tmovq\t_glapi_tls_Dispatch@GOTTPOFF(%rip), %rax' - print '\tmovq\t%fs:(%rax), %rax' - print '\tret' - print '\t.size\t_x86_64_get_dispatch, .-_x86_64_get_dispatch' - print '' - print '#elif defined(HAVE_PTHREAD)' - print '' - print '\t.extern\t_glapi_Dispatch' - print '\t.extern\t_gl_DispatchTSD' - print '\t.extern\tpthread_getspecific' - print '' - print '\t.p2align\t4,,15' - print '_x86_64_get_dispatch:' - print '\tmovq\t_gl_DispatchTSD@GOTPCREL(%rip), %rax' - print '\tmovl\t(%rax), %edi' - print '\tjmp\tpthread_getspecific@PLT' - print '' - print '#elif defined(THREADS)' - print '' - print '\t.extern\t_glapi_get_dispatch' - print '' - print '#endif' - print '' - return - - - def printRealFooter(self): - print '' - print '#if defined(GLX_USE_TLS) && defined(__linux__)' - print ' .section ".note.ABI-tag", "a"' - print ' .p2align 2' - print ' .long 1f - 0f /* name length */' - print ' .long 3f - 2f /* data length */' - print ' .long 1 /* note length */' - print '0: .asciz "GNU" /* vendor name */' - print '1: .p2align 2' - print '2: .long 0 /* note data: the ABI tag */' - print ' .long 2,4,20 /* Minimum kernel version w/TLS */' - print '3: .p2align 2 /* pad out section */' - print '#endif /* GLX_USE_TLS */' - print '' - print '#if defined (__ELF__) && defined (__linux__)' - print ' .section .note.GNU-stack,"",%progbits' - print '#endif' - return - - - def printFunction(self, f): - - # The x86-64 ABI divides function parameters into a couple - # classes. For the OpenGL interface, the only ones that are - # relevent are INTEGER and SSE. Basically, the first 8 - # GLfloat or GLdouble parameters are placed in %xmm0 - %xmm7, - # the first 6 non-GLfloat / non-GLdouble parameters are placed - # in registers listed in int_parameters. - # - # If more parameters than that are required, they are passed - # on the stack. Therefore, we just have to make sure that - # %esp hasn't changed when we jump to the actual function. - # Since we're jumping to the function (and not calling it), we - # have to make sure of that anyway! - - int_parameters = ["%rdi", "%rsi", "%rdx", "%rcx", "%r8", "%r9"] - - int_class = 0 - sse_class = 0 - stack_offset = 0 - registers = [] - for p in f.parameterIterator(): - type_name = p.get_base_type_string() - - if p.is_pointer() or (type_name != "GLfloat" and type_name != "GLdouble"): - if int_class < 6: - registers.append( [int_parameters[int_class], stack_offset] ) - int_class += 1 - stack_offset += 8 - else: - if sse_class < 8: - registers.append( ["%%xmm%u" % (sse_class), stack_offset] ) - sse_class += 1 - stack_offset += 8 - - if ((int_class & 1) == 0) and (sse_class == 0): - registers.append( ["%rbp", 0] ) - - - name = f.dispatch_name() - - print '\t.p2align\t4,,15' - print '\t.globl\tGL_PREFIX(%s)' % (name) - print '\t.type\tGL_PREFIX(%s), @function' % (name) - if not f.is_static_entry_point(f.name): - print '\tHIDDEN(GL_PREFIX(%s))' % (name) - print 'GL_PREFIX(%s):' % (name) - print '#if defined(GLX_USE_TLS)' - print '\tcall\t_x86_64_get_dispatch@PLT' - print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) - print '\tjmp\t*%r11' - print '#elif defined(HAVE_PTHREAD)' - - save_all_regs(registers) - print '\tcall\t_x86_64_get_dispatch@PLT' - restore_all_regs(registers) - - if f.offset == 0: - print '\tmovq\t(%rax), %r11' - else: - print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) - - print '\tjmp\t*%r11' - - print '#else' - print '\tmovq\t_glapi_Dispatch(%rip), %rax' - print '\ttestq\t%rax, %rax' - print '\tje\t1f' - print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) - print '\tjmp\t*%r11' - print '1:' - - save_all_regs(registers) - print '\tcall\t_glapi_get_dispatch' - restore_all_regs(registers) - - print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) - print '\tjmp\t*%r11' - print '#endif /* defined(GLX_USE_TLS) */' - - print '\t.size\tGL_PREFIX(%s), .-GL_PREFIX(%s)' % (name, name) - print '' - return - - - def printBody(self, api): - for f in api.functionIterateByOffset(): - self.printFunction(f) - - - for f in api.functionIterateByOffset(): - dispatch = f.dispatch_name() - for n in f.entry_points: - if n != f.name: - if f.is_static_entry_point(n): - text = '\t.globl GL_PREFIX(%s) ; .set GL_PREFIX(%s), GL_PREFIX(%s)' % (n, n, dispatch) - - if f.has_different_protocol(n): - print '#ifndef GLX_INDIRECT_RENDERING' - print text - print '#endif' - else: - print text - - return + def __init__(self): + gl_XML.gl_print_base.__init__(self) + + self.name = "gl_x86-64_asm.py (from Mesa)" + self.license = license.bsd_license_template % ("(C) Copyright IBM Corporation 2005", "IBM") + return + + + def get_stack_size(self, f): + size = 0 + for p in f.parameterIterator(): + size += p.get_stack_size() + + return size + + + def printRealHeader(self): + print "/* If we build with gcc's -fvisibility=hidden flag, we'll need to change" + print " * the symbol visibility mode to 'default'." + print ' */' + print '' + print '#include "x86/assyntax.h"' + print '' + print '#ifdef __GNUC__' + print '# pragma GCC visibility push(default)' + print '# define HIDDEN(x) .hidden x' + print '#else' + print '# define HIDDEN(x)' + print '#endif' + print '' + print '# if defined(USE_MGL_NAMESPACE)' + print '# define GL_PREFIX(n) GLNAME(CONCAT(mgl,n))' + print '# define _glapi_Dispatch _mglapi_Dispatch' + print '# else' + print '# define GL_PREFIX(n) GLNAME(CONCAT(gl,n))' + print '# endif' + print '' + print '#if defined(HAVE_PTHREAD) || defined(_WIN32)' + print '# define THREADS' + print '#endif' + print '' + print '\t.text' + print '' + print '#ifdef GLX_USE_TLS' + print '' + print '\t.globl _x86_64_get_get_dispatch; HIDDEN(_x86_64_get_get_dispatch)' + print '_x86_64_get_get_dispatch:' + print '\tlea\t_x86_64_get_dispatch(%rip), %rax' + print '\tret' + print '' + print '\t.p2align\t4,,15' + print '_x86_64_get_dispatch:' + print '\tmovq\t_glapi_tls_Dispatch@GOTTPOFF(%rip), %rax' + print '\tmovq\t%fs:(%rax), %rax' + print '\tret' + print '\t.size\t_x86_64_get_dispatch, .-_x86_64_get_dispatch' + print '' + print '#elif defined(HAVE_PTHREAD)' + print '' + print '\t.extern\t_glapi_Dispatch' + print '\t.extern\t_gl_DispatchTSD' + print '\t.extern\tpthread_getspecific' + print '' + print '\t.p2align\t4,,15' + print '_x86_64_get_dispatch:' + print '\tmovq\t_gl_DispatchTSD@GOTPCREL(%rip), %rax' + print '\tmovl\t(%rax), %edi' + print '\tjmp\tpthread_getspecific@PLT' + print '' + print '#elif defined(THREADS)' + print '' + print '\t.extern\t_glapi_get_dispatch' + print '' + print '#endif' + print '' + return + + + def printRealFooter(self): + print '' + print '#if defined(GLX_USE_TLS) && defined(__linux__)' + print ' .section ".note.ABI-tag", "a"' + print ' .p2align 2' + print ' .long 1f - 0f /* name length */' + print ' .long 3f - 2f /* data length */' + print ' .long 1 /* note length */' + print '0: .asciz "GNU" /* vendor name */' + print '1: .p2align 2' + print '2: .long 0 /* note data: the ABI tag */' + print ' .long 2,4,20 /* Minimum kernel version w/TLS */' + print '3: .p2align 2 /* pad out section */' + print '#endif /* GLX_USE_TLS */' + print '' + print '#if defined (__ELF__) && defined (__linux__)' + print ' .section .note.GNU-stack,"",%progbits' + print '#endif' + return + + + def printFunction(self, f): + + # The x86-64 ABI divides function parameters into a couple + # classes. For the OpenGL interface, the only ones that are + # relevent are INTEGER and SSE. Basically, the first 8 + # GLfloat or GLdouble parameters are placed in %xmm0 - %xmm7, + # the first 6 non-GLfloat / non-GLdouble parameters are placed + # in registers listed in int_parameters. + # + # If more parameters than that are required, they are passed + # on the stack. Therefore, we just have to make sure that + # %esp hasn't changed when we jump to the actual function. + # Since we're jumping to the function (and not calling it), we + # have to make sure of that anyway! + + int_parameters = ["%rdi", "%rsi", "%rdx", "%rcx", "%r8", "%r9"] + + int_class = 0 + sse_class = 0 + stack_offset = 0 + registers = [] + for p in f.parameterIterator(): + type_name = p.get_base_type_string() + + if p.is_pointer() or (type_name != "GLfloat" and type_name != "GLdouble"): + if int_class < 6: + registers.append( [int_parameters[int_class], stack_offset] ) + int_class += 1 + stack_offset += 8 + else: + if sse_class < 8: + registers.append( ["%%xmm%u" % (sse_class), stack_offset] ) + sse_class += 1 + stack_offset += 8 + + if ((int_class & 1) == 0) and (sse_class == 0): + registers.append( ["%rbp", 0] ) + + + name = f.dispatch_name() + + print '\t.p2align\t4,,15' + print '\t.globl\tGL_PREFIX(%s)' % (name) + print '\t.type\tGL_PREFIX(%s), @function' % (name) + if not f.is_static_entry_point(f.name): + print '\tHIDDEN(GL_PREFIX(%s))' % (name) + print 'GL_PREFIX(%s):' % (name) + print '#if defined(GLX_USE_TLS)' + print '\tcall\t_x86_64_get_dispatch@PLT' + print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) + print '\tjmp\t*%r11' + print '#elif defined(HAVE_PTHREAD)' + + save_all_regs(registers) + print '\tcall\t_x86_64_get_dispatch@PLT' + restore_all_regs(registers) + + if f.offset == 0: + print '\tmovq\t(%rax), %r11' + else: + print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) + + print '\tjmp\t*%r11' + + print '#else' + print '\tmovq\t_glapi_Dispatch(%rip), %rax' + print '\ttestq\t%rax, %rax' + print '\tje\t1f' + print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) + print '\tjmp\t*%r11' + print '1:' + + save_all_regs(registers) + print '\tcall\t_glapi_get_dispatch' + restore_all_regs(registers) + + print '\tmovq\t%u(%%rax), %%r11' % (f.offset * 8) + print '\tjmp\t*%r11' + print '#endif /* defined(GLX_USE_TLS) */' + + print '\t.size\tGL_PREFIX(%s), .-GL_PREFIX(%s)' % (name, name) + print '' + return + + + def printBody(self, api): + for f in api.functionIterateByOffset(): + self.printFunction(f) + + + for f in api.functionIterateByOffset(): + dispatch = f.dispatch_name() + for n in f.entry_points: + if n != f.name: + if f.is_static_entry_point(n): + text = '\t.globl GL_PREFIX(%s) ; .set GL_PREFIX(%s), GL_PREFIX(%s)' % (n, n, dispatch) + + if f.has_different_protocol(n): + print '#ifndef GLX_INDIRECT_RENDERING' + print text + print '#endif' + else: + print text + + return def show_usage(): - print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0] - sys.exit(1) + print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0] + sys.exit(1) if __name__ == '__main__': - file_name = "gl_API.xml" - mode = "generic" - - try: - (args, trail) = getopt.getopt(sys.argv[1:], "m:f:") - except Exception,e: - show_usage() - - for (arg,val) in args: - if arg == '-m': - mode = val - elif arg == "-f": - file_name = val - - if mode == "generic": - printer = PrintGenericStubs() - else: - print "ERROR: Invalid mode \"%s\" specified." % mode - show_usage() - - api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) - printer.Print(api) + file_name = "gl_API.xml" + mode = "generic" + + try: + (args, trail) = getopt.getopt(sys.argv[1:], "m:f:") + except Exception,e: + show_usage() + + for (arg,val) in args: + if arg == '-m': + mode = val + elif arg == "-f": + file_name = val + + if mode == "generic": + printer = PrintGenericStubs() + else: + print "ERROR: Invalid mode \"%s\" specified." % mode + show_usage() + + api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) + printer.Print(api) |