diff options
Diffstat (limited to 'src/mesa/glapi/gl_x86-64_asm.py')
| -rw-r--r-- | src/mesa/glapi/gl_x86-64_asm.py | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/src/mesa/glapi/gl_x86-64_asm.py b/src/mesa/glapi/gl_x86-64_asm.py deleted file mode 100644 index ea13d2ac522..00000000000 --- a/src/mesa/glapi/gl_x86-64_asm.py +++ /dev/null @@ -1,320 +0,0 @@ -#!/usr/bin/env python - -# (C) Copyright IBM Corporation 2005 -# All Rights Reserved. -# -# Permission is hereby granted, free of charge, to any person obtaining a -# copy of this software and associated documentation files (the "Software"), -# to deal in the Software without restriction, including without limitation -# on the rights to use, copy, modify, merge, publish, distribute, sub -# license, and/or sell copies of the Software, and to permit persons to whom -# the Software is furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice (including the next -# paragraph) shall be included in all copies or substantial portions of the -# Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL -# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING -# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS -# IN THE SOFTWARE. -# -# Authors: -# Ian Romanick <idr@us.ibm.com> - -import gl_XML, license -import sys, getopt, copy - -def should_use_push(registers): - for [reg, offset] in registers: - if reg[1:4] == "xmm": - return 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. - - 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$%u, %%rsp' % (adjust_stack) - - for [reg, stack_offset] in registers: - save_reg( reg, stack_offset, adjust_stack ) - return - - -def restore_all_regs(registers): - adjust_stack = 0 - if not should_use_push(registers): - adjust_stack = local_size(registers) - - temp = copy.deepcopy(registers) - while len(temp): - [reg, stack_offset] = temp.pop() - restore_reg(reg, stack_offset, adjust_stack) - - if adjust_stack: - print '\taddq\t$%u, %%rsp' % (adjust_stack) - return - - -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) - - 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) - - 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 '#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303' - 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 '# else' - print '# define GL_PREFIX(n) GLNAME(CONCAT(gl,n))' - print '# endif' - print '' - print '#if defined(PTHREADS) || defined(USE_XTHREADS) || defined(SOLARIS_THREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)' - 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(PTHREADS)' - 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(%rip), %rdi' - 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] ) - - - print '\t.p2align\t4,,15' - print '\t.globl\tGL_PREFIX(%s)' % (f.name) - print '\t.type\tGL_PREFIX(%s), @function' % (f.name) - print 'GL_PREFIX(%s):' % (f.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(PTHREADS)' - - 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)' % (f.name, f.name) - print '' - return - - - def printBody(self, api): - for f in api.functionIterateByOffset(): - self.printFunction(f) - - - for f in api.functionIterateByOffset(): - for n in f.entry_points: - if n != f.name: - print '\t.globl GL_PREFIX(%s) ; .set GL_PREFIX(%s), GL_PREFIX(%s)' % (n, n, f.name) - - return - -def show_usage(): - 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 ) - - printer.Print( api ) |