fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-29 16:40:13 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

radeon/llvm: Handle ELF formatted binary output from the LLVM backend

Browse source
This commit is contained in:
Tom Stellard 2013-04-04 13:02:51 -07:00
parent 7782d19cdc
commit 9277b04c02
4 changed files with 39 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
configure.ac
View file

@ -1781,6 +1781,8 @@ radeon_llvm_check() {
fi
LLVM_COMPONENTS="${LLVM_COMPONENTS} r600 bitreader"
NEED_RADEON_LLVM=yes
AC_CHECK_LIB([elf], [elf_memory], [ELF_LIB=-lelf],
[AC_MSG_ERROR([radeonsi and r600g require libelf when using LLVM])])
}
dnl Gallium drivers
@ -1999,6 +2001,7 @@ AM_CONDITIONAL(HAVE_MESA_LLVM, test x$MESA_LLVM = x1)
AM_CONDITIONAL(LLVM_NEEDS_FNORTTI, test $LLVM_VERSION_INT -ge 302)
AC_SUBST([GALLIUM_MAKE_DIRS])
AC_SUBST([ELF_LIB])
AM_CONDITIONAL(NEED_LIBPROGRAM, test "x$with_gallium_drivers" != x -o \
"x$enable_xlib_glx" = xyes -o \

2
src/gallium/drivers/radeon/LLVM_REVISION.txt
View file

@ -1 +1 @@
@179164
@179544

3
src/gallium/drivers/radeon/Makefile.am
View file

@ -41,6 +41,7 @@ libllvmradeon@VERSION@_la_SOURCES = \
libllvmradeon@VERSION@_la_LIBADD = \
$(LIBGALLIUM_LIBS) \
$(CLOCK_LIB) \
$(LLVM_LIBS)
$(LLVM_LIBS) \
$(ELF_LIB)
endif

36
src/gallium/drivers/radeon/radeon_llvm_emit.cpp
View file

@ -52,6 +52,8 @@
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <libelf.h>
#include <gelf.h>
using namespace llvm;
@ -154,10 +156,38 @@ radeon_llvm_compile(LLVMModuleRef M, struct radeon_llvm_binary *binary,
out.flush();
std::string &data = oStream.str();
char *elf_buffer;
binary->code = (unsigned char*)malloc(data.length() * sizeof(unsigned char));
memcpy(binary->code, data.c_str(), data.length() * sizeof(unsigned char));
binary->code_size = data.length();
elf_buffer = (char*)malloc(data.length());
memcpy(elf_buffer, data.c_str(), data.length());
Elf *elf = elf_memory(elf_buffer, data.length());
Elf_Scn *section = NULL;
size_t section_str_index;
elf_getshdrstrndx(elf, &section_str_index);
while ((section = elf_nextscn(elf, section))) {
const char *name;
Elf_Data *section_data = NULL;
GElf_Shdr section_header;
if (gelf_getshdr(section, &section_header) != &section_header) {
fprintf(stderr, "Failed to read ELF section header\n");
return 1;
}
name = elf_strptr(elf, section_str_index, section_header.sh_name);
if (!strcmp(name, ".text")) {
section_data = elf_getdata(section, section_data);
binary->code_size = section_data->d_size;
binary->code = (unsigned char*)malloc(binary->code_size * sizeof(unsigned char));
memcpy(binary->code, section_data->d_buf, binary->code_size);
} else if (!strcmp(name, ".AMDGPU.config")) {
section_data = elf_getdata(section, section_data);
binary->config_size = section_data->d_size;
binary->config = (unsigned char*)malloc(binary->config_size * sizeof(unsigned char));
memcpy(binary->config, section_data->d_buf, binary->config_size);
}
}
return 0;
}