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authorEric Andersen <andersen@codepoet.org>2004-02-17 10:55:59 +0000
committerEric Andersen <andersen@codepoet.org>2004-02-17 10:55:59 +0000
commite5649e61768bfd26d48aa44076d2c1e801a3e8cb (patch)
tree948076ae77832a88ff4c774d34983b23dca769f3 /ldso/ldso/powerpc
parent0dccbee4ebd749c5a3408be7594226db9f9c2005 (diff)
Seperate out the startup stuff from the non-startup stuff.
Begin converting some big ugly macros to inline functions instead
Diffstat (limited to 'ldso/ldso/powerpc')
-rw-r--r--ldso/ldso/powerpc/dl-startup.h53
-rw-r--r--ldso/ldso/powerpc/dl-sysdep.h51
2 files changed, 53 insertions, 51 deletions
diff --git a/ldso/ldso/powerpc/dl-startup.h b/ldso/ldso/powerpc/dl-startup.h
index 70e494331..a167ae866 100644
--- a/ldso/ldso/powerpc/dl-startup.h
+++ b/ldso/ldso/powerpc/dl-startup.h
@@ -18,3 +18,56 @@ asm("" \
);
#define DL_BOOT(X) static void __attribute__ ((unused)) _dl_boot2(X)
+
+/*
+ * Get a pointer to the argv array. On many platforms this can be just
+ * the address if the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS)+1)
+
+/*
+ * Here is a macro to perform a relocation. This is only used when
+ * bootstrapping the dynamic loader. RELP is the relocation that we
+ * are performing, REL is the pointer to the address we are relocating.
+ * SYMBOL is the symbol involved in the relocation, and LOAD is the
+ * load address.
+ */
+#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
+ {int type=ELF32_R_TYPE((RELP)->r_info); \
+ Elf32_Addr finaladdr=(SYMBOL)+(RELP)->r_addend;\
+ if (type==R_PPC_RELATIVE) { \
+ *REL=(Elf32_Word)(LOAD)+(RELP)->r_addend;\
+ } else if (type==R_PPC_JMP_SLOT) { \
+ Elf32_Sword delta=finaladdr-(Elf32_Word)(REL);\
+ *REL=OPCODE_B(delta); \
+ } else if (type==R_PPC_ADDR32) { \
+ *REL=finaladdr; \
+ } else { \
+ _dl_exit(100+ELF32_R_TYPE((RELP)->r_info)); \
+ } \
+ PPC_DCBST(REL); PPC_SYNC; PPC_ICBI(REL); \
+ }
+/*
+ * Transfer control to the user's application, once the dynamic loader
+ * is done. This routine has to exit the current function, then
+ * call the _dl_elf_main function.
+ */
+
+/* hgb@ifi.uio.no:
+ * Adding a clobber list consisting of r0 for %1. addi on PowerPC
+ * takes a register as the second argument, but if the register is
+ * r0, the value 0 is used instead. If r0 is used here, the stack
+ * pointer (r1) will be zeroed, and the dynamically linked
+ * application will seg.fault immediatly when receiving control.
+ */
+#define START() \
+ __asm__ volatile ( \
+ "addi 1,%1,0\n\t" \
+ "mtlr %0\n\t" \
+ "blrl\n\t" \
+ : : "r" (_dl_elf_main), "r" (args) \
+ : "r0")
+
+
+
diff --git a/ldso/ldso/powerpc/dl-sysdep.h b/ldso/ldso/powerpc/dl-sysdep.h
index 1a78b1b8b..41d37e35c 100644
--- a/ldso/ldso/powerpc/dl-sysdep.h
+++ b/ldso/ldso/powerpc/dl-sysdep.h
@@ -9,13 +9,6 @@
#define ELF_USES_RELOCA
/*
- * Get a pointer to the argv array. On many platforms this can be just
- * the address if the first argument, on other platforms we need to
- * do something a little more subtle here.
- */
-#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS)+1)
-
-/*
* Initialization sequence for a GOT.
*/
#define INIT_GOT(GOT_BASE,MODULE) _dl_init_got(GOT_BASE,MODULE)
@@ -63,50 +56,6 @@
#define PPC_ICBI(where) asm volatile ("icbi 0,%0" : : "r"(where) : "memory")
#define PPC_DIE asm volatile ("tweq 0,0")
-/*
- * Here is a macro to perform a relocation. This is only used when
- * bootstrapping the dynamic loader. RELP is the relocation that we
- * are performing, REL is the pointer to the address we are relocating.
- * SYMBOL is the symbol involved in the relocation, and LOAD is the
- * load address.
- */
-#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
- {int type=ELF32_R_TYPE((RELP)->r_info); \
- Elf32_Addr finaladdr=(SYMBOL)+(RELP)->r_addend;\
- if (type==R_PPC_RELATIVE) { \
- *REL=(Elf32_Word)(LOAD)+(RELP)->r_addend;\
- } else if (type==R_PPC_JMP_SLOT) { \
- Elf32_Sword delta=finaladdr-(Elf32_Word)(REL);\
- *REL=OPCODE_B(delta); \
- } else if (type==R_PPC_ADDR32) { \
- *REL=finaladdr; \
- } else { \
- _dl_exit(100+ELF32_R_TYPE((RELP)->r_info)); \
- } \
- PPC_DCBST(REL); PPC_SYNC; PPC_ICBI(REL); \
- }
-/*
- * Transfer control to the user's application, once the dynamic loader
- * is done. This routine has to exit the current function, then
- * call the _dl_elf_main function.
- */
-
-/* hgb@ifi.uio.no:
- * Adding a clobber list consisting of r0 for %1. addi on PowerPC
- * takes a register as the second argument, but if the register is
- * r0, the value 0 is used instead. If r0 is used here, the stack
- * pointer (r1) will be zeroed, and the dynamically linked
- * application will seg.fault immediatly when receiving control.
- */
-#define START() \
- __asm__ volatile ( \
- "addi 1,%1,0\n\t" \
- "mtlr %0\n\t" \
- "blrl\n\t" \
- : : "r" (_dl_elf_main), "r" (args) \
- : "r0")
-
-
/* Here we define the magic numbers that this dynamic loader should accept */
#define MAGIC1 EM_PPC