Moved ELF64 relocation functions to x86 arch_elf.cpp.

This commit is contained in:
Alex Smith
2012-07-03 08:45:35 +01:00
parent 020a25ce46
commit 90907c35ac
3 changed files with 95 additions and 8 deletions
-7
View File
@@ -2,10 +2,6 @@ SubDir HAIKU_TOP src system boot arch x86 ;
DEFINES += _BOOT_MODE ;
local bootArchSources =
arch_elf64.cpp
;
local kernelArchSources =
arch_elf.cpp
cpuid.S
@@ -20,15 +16,12 @@ local librootOsArchSources =
;
BootMergeObject boot_arch_$(TARGET_KERNEL_ARCH).o :
$(bootArchSources)
$(kernelArchSources)
$(kernelLibArchSources)
$(librootOsArchSources)
: # additional flags
;
SEARCH on [ FGristFiles $(bootArchSources) ]
= [ FDirName $(HAIKU_TOP) src system boot arch x86 ] ;
SEARCH on [ FGristFiles $(kernelArchSources) ]
= [ FDirName $(HAIKU_TOP) src system kernel arch x86 ] ;
SEARCH on [ FGristFiles $(kernelLibArchSources) ]
-1
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@@ -1 +0,0 @@
#include "../../../kernel/arch/x86_64/arch_elf.cpp"
+95
View File
@@ -25,6 +25,9 @@
#endif
#if !defined(__x86_64__) || defined(_BOOT_MODE)
#ifdef TRACE_ARCH_ELF
static const char *kRelocations[] = {
"R_386_NONE",
@@ -178,3 +181,95 @@ arch_elf_relocate_rela(struct elf_image_info *image,
dprintf("arch_elf_relocate_rela: not supported on x86\n");
return B_ERROR;
}
#endif // !__x86_64__ || _BOOT_MODE
//#if defined(__x86_64__) || defined(_BOOT_MODE)
#ifdef _BOOT_MODE
#ifdef _BOOT_MODE
status_t
boot_arch_elf_relocate_rel(preloaded_elf64_image* image, Elf64_Rel* rel,
int relLength)
//#else
//int
//arch_elf_relocate_rel(struct elf_image_info *image,
// struct elf_image_info *resolveImage, struct Elf32_Rel *rel, int relLength)
//#endif
{
dprintf("arch_elf_relocate_rel: not supported on x86_64\n");
return B_ERROR;
}
//#ifdef _BOOT_MODE
status_t
boot_arch_elf_relocate_rela(preloaded_elf64_image* image, Elf64_Rela* rel,
int relLength)
//#else
//int
//arch_elf_relocate_rela(struct elf_image_info *image,
// struct elf_image_info *resolveImage, struct Elf32_Rela *rel, int relLength)
//#endif
{
for (int i = 0; i < relLength / (int)sizeof(Elf64_Rela); i++) {
int type = ELF64_R_TYPE(rel[i].r_info);
int symIndex = ELF64_R_SYM(rel[i].r_info);
Elf64_Addr symAddr = 0;
// Resolve the symbol, if any.
if (symIndex != 0) {
Elf64_Sym* symbol = SYMBOL(image, symIndex);
status_t status;
//#ifdef _BOOT_MODE
status = boot_elf_resolve_symbol(image, symbol, &symAddr);
//#else
// status = elf_resolve_symbol(image, symbol, resolveImage, &S);
//#endif
if (status < B_OK)
return status;
}
// Address of the relocation.
Elf64_Addr relocAddr = image->text_region.delta + rel[i].r_offset;
// Calculate the relocation value.
Elf64_Addr relocValue;
switch(type) {
case R_X86_64_NONE:
continue;
case R_X86_64_64:
relocValue = symAddr + rel[i].r_addend;
break;
case R_X86_64_PC32:
relocValue = symAddr + rel[i].r_addend - rel[i].r_offset;
break;
case R_X86_64_GLOB_DAT:
case R_X86_64_JUMP_SLOT:
relocValue = symAddr + rel[i].r_addend;
break;
case R_X86_64_RELATIVE:
relocValue = image->text_region.delta + rel[i].r_addend;
break;
default:
dprintf("arch_elf_relocate_rel: unhandled relocation type %d\n",
type);
return B_BAD_DATA;
}
#ifdef _BOOT_MODE
boot_elf64_set_relocation(relocAddr, relocValue);
#else
*(Elf64_Addr *)relocAddr = relocValue;
#endif
}
return B_OK;
}
#endif
#endif // __x86_64__ || _BOOT_MODE