summaryrefslogtreecommitdiffstats
path: root/arch/csky/include/asm/elf.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/csky/include/asm/elf.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/csky/include/asm/elf.h')
-rw-r--r--arch/csky/include/asm/elf.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/csky/include/asm/elf.h b/arch/csky/include/asm/elf.h
new file mode 100644
index 000000000..48b83e283
--- /dev/null
+++ b/arch/csky/include/asm/elf.h
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_CSKY_ELF_H
+#define __ASM_CSKY_ELF_H
+
+#include <asm/ptrace.h>
+#include <abi/regdef.h>
+
+#define ELF_ARCH EM_CSKY
+#define EM_CSKY_OLD 39
+
+/* CSKY Relocations */
+#define R_CSKY_NONE 0
+#define R_CSKY_32 1
+#define R_CSKY_PCIMM8BY4 2
+#define R_CSKY_PCIMM11BY2 3
+#define R_CSKY_PCIMM4BY2 4
+#define R_CSKY_PC32 5
+#define R_CSKY_PCRELJSR_IMM11BY2 6
+#define R_CSKY_GNU_VTINHERIT 7
+#define R_CSKY_GNU_VTENTRY 8
+#define R_CSKY_RELATIVE 9
+#define R_CSKY_COPY 10
+#define R_CSKY_GLOB_DAT 11
+#define R_CSKY_JUMP_SLOT 12
+#define R_CSKY_ADDR_HI16 24
+#define R_CSKY_ADDR_LO16 25
+#define R_CSKY_PCRELJSR_IMM26BY2 40
+
+typedef unsigned long elf_greg_t;
+
+typedef struct user_fp elf_fpregset_t;
+
+/*
+ * In gdb/bfd elf32-csky.c, csky_elf_grok_prstatus() use fixed size of
+ * elf_prstatus. It's 148 for abiv1 and 220 for abiv2, the size is enough
+ * for coredump and no need full sizeof(struct pt_regs).
+ */
+#define ELF_NGREG ((sizeof(struct pt_regs) / sizeof(elf_greg_t)) - 2)
+
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) (((x)->e_machine == ELF_ARCH) || \
+ ((x)->e_machine == EM_CSKY_OLD))
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_EXEC_PAGESIZE 4096
+#define ELF_CLASS ELFCLASS32
+#define ELF_PLAT_INIT(_r, load_addr) { _r->a0 = 0; }
+
+#ifdef __cskyBE__
+#define ELF_DATA ELFDATA2MSB
+#else
+#define ELF_DATA ELFDATA2LSB
+#endif
+
+/*
+ * This is the location that an ET_DYN program is loaded if exec'ed. Typical
+ * use of this is to invoke "./ld.so someprog" to test out a new version of
+ * 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.
+ */
+#define ELF_ET_DYN_BASE 0x0UL
+#include <abi/elf.h>
+
+/* Similar, but for a thread other than current. */
+struct task_struct;
+extern int dump_task_regs(struct task_struct *tsk, elf_gregset_t *elf_regs);
+#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
+
+#define ELF_HWCAP (0)
+
+/*
+ * This yields a string that ld.so will use to load implementation specific
+ * libraries for optimization. This is more specific in intent than poking
+ * at uname or /proc/cpuinfo.
+ */
+#define ELF_PLATFORM (NULL)
+#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+ int uses_interp);
+#endif /* __ASM_CSKY_ELF_H */