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LibELF: Add ELFDynamicObject to dynamically load libaries

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This patch also adds some missing relocation defines to exec_elf.h,
and a few helper classes/methods to ELFImage so that we can use it
for our dynamically loaded libs and not just main program images from
the kernel :)
This commit is contained in:
Andrew Kaster 2019-12-31 16:45:50 -05:00 • committed by Andreas Kling
parent b6590b7f83
commit a18b37880e
5 changed files with 941 additions and 5 deletions
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14
Libraries/LibELF/exec_elf.h
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@ -775,7 +775,17 @@ struct elf_args {
#define ELF_TARG_VER 1 /* The ver for which this code is intended */
#define R_386_32 1
#define R_386_PC32 2
/* Relocation types */
#define R_386_NONE 0
#define R_386_32 1 /* Symbol + Addend */
#define R_386_PC32 2 /* Symbol + Addend - Section offset */
#define R_386_GOT32 3 /* Used by build-time linker to create GOT entry */
#define R_386_PLT32 4 /* Used by build-time linker to create PLT entry */
#define R_386_COPY 5 /* https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter4-10454.html#chapter4-84604 */
#define R_386_GLOB_DAT 6 /* Relation b/w GOT entry and symbol */
#define R_386_JMP_SLOT 7 /* Fixed up by dynamic loader */
#define R_386_RELATIVE 8 /* Base address + Addned */
#define R_386_TLS_TPOFF 14 /* Negative offset into the static TLS storage */
#endif /* _SYS_EXEC_ELF_H_ */