[SPARC64]: Make use of the new fs/compat_binfmt_elf.c

Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Feb 8, 2008 · 48c946a · 48c946a
1 parent 2ba85f3
commit 48c946a
Show file tree

Hide file tree

Showing 4 changed files with 52 additions and 152 deletions.
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
@@ -380,13 +380,7 @@ config COMPAT
 	bool
 	depends on SPARC32_COMPAT
 	default y
-
-config BINFMT_ELF32
-	bool "Kernel support for 32-bit ELF binaries"
-	depends on SPARC32_COMPAT
-	help
-	  This allows you to run 32-bit Linux/ELF binaries on your Ultra.
-	  Everybody wants this; say Y.
+	select COMPAT_BINFMT_ELF
 
 config BINFMT_AOUT32
 	bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"

diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
@@ -21,7 +21,6 @@ obj-$(CONFIG_PCI)	 += ebus.o isa.o pci_common.o \
 obj-$(CONFIG_PCI_MSI)	+= pci_msi.o
 obj-$(CONFIG_SMP)	 += smp.o trampoline.o hvtramp.o
 obj-$(CONFIG_SPARC32_COMPAT) += sys32.o sys_sparc32.o signal32.o
-obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o
 obj-$(CONFIG_BINFMT_AOUT32) += binfmt_aout32.o
 obj-$(CONFIG_MODULES) += module.o
 obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o

diff --git a/arch/sparc64/kernel/binfmt_elf32.c b/arch/sparc64/kernel/binfmt_elf32.c
diff --git a/include/asm-sparc64/elf.h b/include/asm-sparc64/elf.h
@@ -75,7 +75,6 @@
 /*
  * These are used to set parameters in the core dumps.
  */
-#ifndef ELF_ARCH
 #define ELF_ARCH		EM_SPARCV9
 #define ELF_CLASS		ELFCLASS64
 #define ELF_DATA		ELFDATA2MSB
@@ -100,14 +99,59 @@ typedef struct {
 	unsigned long	pr_gsr;
 	unsigned long	pr_fprs;
 } elf_fpregset_t;
-#endif
+
+/* Format of 32-bit elf_gregset_t is:
+ * 	G0 --> G7
+ *	O0 --> O7
+ *	L0 --> L7
+ *	I0 --> I7
+ *	PSR, PC, nPC, Y, WIM, TBR
+ */
+typedef unsigned int compat_elf_greg_t;
+#define COMPAT_ELF_NGREG 38
+typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
+
+typedef struct {
+	union {
+		unsigned int	pr_regs[32];
+		unsigned long	pr_dregs[16];
+	} pr_fr;
+	unsigned int __unused;
+	unsigned int	pr_fsr;
+	unsigned char	pr_qcnt;
+	unsigned char	pr_q_entrysize;
+	unsigned char	pr_en;
+	unsigned int	pr_q[64];
+} compat_elf_fpregset_t;
+
+/* UltraSparc extensions.  Still unused, but will be eventually.  */
+typedef struct {
+	unsigned int pr_type;
+	unsigned int pr_align;
+	union {
+		struct {
+			union {
+				unsigned int	pr_regs[32];
+				unsigned long	pr_dregs[16];
+				long double	pr_qregs[8];
+			} pr_xfr;
+		} pr_v8p;
+		unsigned int	pr_xfsr;
+		unsigned int	pr_fprs;
+		unsigned int	pr_xg[8];
+		unsigned int	pr_xo[8];
+		unsigned long	pr_tstate;
+		unsigned int	pr_filler[8];
+	} pr_un;
+} elf_xregset_t;
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
-#ifndef elf_check_arch
-#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)	/* Might be EM_SPARCV9 or EM_SPARC */
-#endif
+#define elf_check_arch(x)		((x)->e_machine == ELF_ARCH)
+#define compat_elf_check_arch(x)	((x)->e_machine == EM_SPARC || \
+					 (x)->e_machine == EM_SPARC32PLUS)
+#define compat_start_thread		start_thread32
 
 #define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
@@ -117,9 +161,8 @@ typedef struct {
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-#ifndef ELF_ET_DYN_BASE
-#define ELF_ET_DYN_BASE         0x0000010000000000UL
-#endif
+#define ELF_ET_DYN_BASE		0x0000010000000000UL
+#define COMPAT_ELF_ET_DYN_BASE	0x0000000070000000UL
 
 
 /* This yields a mask that user programs can use to figure out what