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@@ -4,18 +4,9 @@
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* so that we can minimize the amount of platform specific code.
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*/
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-/*
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- * Define this if the system uses RELOCA.
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- */
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+/* Define this if the system uses RELOCA. */
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#define ELF_USES_RELOCA
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-/*
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- * Get a pointer to the argv array. On many platforms this can be just
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- * the address if the first argument, on other platforms we need to
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- * do something a little more subtle here.
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- */
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-#define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long *)ARGS)
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-
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/*
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* Initialization sequence for a GOT.
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*/
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@@ -25,133 +16,6 @@
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GOT_BASE[1] = (unsigned long)(MODULE); \
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}
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-/*
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- * Here is a macro to perform a relocation. This is only used when
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- * bootstrapping the dynamic loader. RELP is the relocation that we
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- * are performing, REL is the pointer to the address we are relocating.
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- * SYMBOL is the symbol involved in the relocation, and LOAD is the
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- * load address.
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- */
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-
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-/*
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- * We need to do this stupidity here as the preprocessor will choke when
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- * SYMTAB is NULL if we do this in PERFORM_BOOTSTRAP_RELOC().
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- */
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-
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-#include <elf.h>
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-
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-static inline int __extract_lsb_from_symtab(Elf32_Sym *symtab)
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-{
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- static int lsb = 0;
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-
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- /* Check for SHmedia/SHcompact */
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- if (symtab)
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- lsb = symtab->st_other & 4;
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-
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- return lsb;
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-}
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-
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-/*
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- * While on the subject of stupidity, there appear to be some conflicts with
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- * regards to several relocation types as far as binutils is concerned
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- * (Barcelona and Madrid both appear to use an out of date elf.h, whereas
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- * native Catalonia has all of the necessary definitions. As a workaround,
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- * we'll just define them here for sanity..
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- */
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-#ifndef R_SH_RELATIVE_LOW16
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-# define R_SH_RELATIVE_LOW16 197
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-# define R_SH_RELATIVE_MEDLOW16 198
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-# define R_SH_IMM_LOW16 246
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-# define R_SH_IMM_LOW16_PCREL 247
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-# define R_SH_IMM_MEDLOW16 248
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-# define R_SH_IMM_MEDLOW16_PCREL 249
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-#endif
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-
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-#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
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- const unsigned int r_type = ELF32_R_TYPE((RELP)->r_info); \
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- int lsb = __extract_lsb_from_symtab(SYMTAB); \
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- \
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- switch (r_type) { \
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- case R_SH_REL32: \
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- *(REL) = (SYMBOL) + (RELP)->r_addend \
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- - (unsigned long)(REL); \
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- break; \
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- case R_SH_DIR32: \
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- case R_SH_GLOB_DAT: \
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- case R_SH_JMP_SLOT: \
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- *(REL) = ((SYMBOL) + (RELP)->r_addend) | lsb; \
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- break; \
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- case R_SH_RELATIVE: \
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- *(REL) = (LOAD) + (RELP)->r_addend; \
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- break; \
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- case R_SH_RELATIVE_LOW16: \
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- case R_SH_RELATIVE_MEDLOW16: \
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- { \
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- unsigned long word, value; \
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- \
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- word = (unsigned long)(REL) & ~0x3fffc00; \
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- value = (LOAD) + (RELP)->r_addend; \
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- \
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- if (r_type == R_SH_RELATIVE_MEDLOW16) \
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- value >>= 16; \
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- \
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- word |= (value & 0xffff) << 10; \
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- *(REL) = word; \
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- break; \
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- } \
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- case R_SH_IMM_LOW16: \
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- case R_SH_IMM_MEDLOW16: \
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- { \
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- unsigned long word, value; \
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- \
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- word = (unsigned long)(REL) & ~0x3fffc00; \
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- value = ((SYMBOL) + (RELP)->r_addend) | lsb; \
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- \
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- if (r_type == R_SH_IMM_MEDLOW16) \
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- value >>= 16; \
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- \
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- word |= (value & 0xffff) << 10; \
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- *(REL) = word; \
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- break; \
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- } \
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- case R_SH_IMM_LOW16_PCREL: \
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- case R_SH_IMM_MEDLOW16_PCREL: \
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- { \
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- unsigned long word, value; \
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- \
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- word = (unsigned long)(REL) & ~0x3fffc00; \
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- value = (SYMBOL) + (RELP)->r_addend \
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- - (unsigned long)(REL); \
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- \
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- if (r_type == R_SH_IMM_MEDLOW16_PCREL) \
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- value >>= 16; \
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- \
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- word |= (value & 0xffff) << 10; \
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- *(REL) = word; \
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- break; \
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- } \
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- case R_SH_NONE: \
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- break; \
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- default: \
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- SEND_STDERR("BOOTSTRAP_RELOC: unhandled reloc type "); \
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- SEND_NUMBER_STDERR(ELF32_R_TYPE((RELP)->r_info), 1); \
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- SEND_STDERR("REL, SYMBOL, LOAD: "); \
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- SEND_ADDRESS_STDERR(REL, 0); \
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- SEND_STDERR(", "); \
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- SEND_ADDRESS_STDERR(SYMBOL, 0); \
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- SEND_STDERR(", "); \
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- SEND_ADDRESS_STDERR(LOAD, 1); \
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- _dl_exit(1); \
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- }
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-
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-/*
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- * Transfer control to the user's application, once the dynamic loader
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- * is done. This routine has to exit the current function, then
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- * call the _dl_elf_main function.
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- */
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-
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-#define START() return _dl_elf_main;
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-
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/* Here we define the magic numbers that this dynamic loader should accept */
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#define MAGIC1 EM_SH
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#undef MAGIC2
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