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bsd-user: Remove all non-x86 code from elfload.c
bsd-user only builds x86 at the moment. Remove all non x86 code from
elfload.c. We'll move the x86 code to {i386,x86_64}/target_arch_elf.h
and bring it that support code from the forked bsd-user when the time
comes.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh
parent
a8998784ae
commit
dd869a9665
@ -23,15 +23,6 @@
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#include "disas/disas.h"
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#include "qemu/path.h"
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#ifdef _ARCH_PPC64
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#undef ARCH_DLINFO
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#undef ELF_PLATFORM
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#undef ELF_HWCAP
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#undef ELF_CLASS
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#undef ELF_DATA
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#undef ELF_ARCH
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#endif
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/* from personality.h */
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/*
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@ -144,7 +135,7 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
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}
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}
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#else
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#else /* !TARGET_X86_64 */
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#define ELF_START_MMAP 0x80000000
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@ -174,343 +165,13 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
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A value of 0 tells we have no such handler. */
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regs->edx = 0;
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}
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#endif
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#endif /* !TARGET_X86_64 */
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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#endif
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#ifdef TARGET_ARM
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ((x) == EM_ARM)
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#define ELF_CLASS ELFCLASS32
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#ifdef TARGET_WORDS_BIGENDIAN
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#define ELF_DATA ELFDATA2MSB
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#else
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#define ELF_DATA ELFDATA2LSB
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#endif
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#define ELF_ARCH EM_ARM
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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abi_long stack = infop->start_stack;
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memset(regs, 0, sizeof(*regs));
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regs->ARM_cpsr = 0x10;
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if (infop->entry & 1)
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regs->ARM_cpsr |= CPSR_T;
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regs->ARM_pc = infop->entry & 0xfffffffe;
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regs->ARM_sp = infop->start_stack;
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/* FIXME - what to for failure of get_user()? */
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get_user_ual(regs->ARM_r2, stack + 8); /* envp */
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get_user_ual(regs->ARM_r1, stack + 4); /* envp */
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/* XXX: it seems that r0 is zeroed after ! */
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regs->ARM_r0 = 0;
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/* For uClinux PIC binaries. */
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/* XXX: Linux does this only on ARM with no MMU (do we care ?) */
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regs->ARM_r10 = infop->start_data;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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enum
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{
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ARM_HWCAP_ARM_SWP = 1 << 0,
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ARM_HWCAP_ARM_HALF = 1 << 1,
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ARM_HWCAP_ARM_THUMB = 1 << 2,
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ARM_HWCAP_ARM_26BIT = 1 << 3,
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ARM_HWCAP_ARM_FAST_MULT = 1 << 4,
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ARM_HWCAP_ARM_FPA = 1 << 5,
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ARM_HWCAP_ARM_VFP = 1 << 6,
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ARM_HWCAP_ARM_EDSP = 1 << 7,
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};
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#define ELF_HWCAP (ARM_HWCAP_ARM_SWP | ARM_HWCAP_ARM_HALF \
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| ARM_HWCAP_ARM_THUMB | ARM_HWCAP_ARM_FAST_MULT \
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| ARM_HWCAP_ARM_FPA | ARM_HWCAP_ARM_VFP)
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#endif
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#ifdef TARGET_SPARC
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#ifdef TARGET_SPARC64
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#define ELF_START_MMAP 0x80000000
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#ifndef TARGET_ABI32
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#define elf_check_arch(x) ((x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS)
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#else
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#define elf_check_arch(x) ((x) == EM_SPARC32PLUS || (x) == EM_SPARC)
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#endif
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#define ELF_CLASS ELFCLASS64
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_SPARCV9
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#define STACK_BIAS 2047
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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#ifndef TARGET_ABI32
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regs->tstate = 0;
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#endif
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regs->pc = infop->entry;
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regs->npc = regs->pc + 4;
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regs->y = 0;
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#ifdef TARGET_ABI32
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regs->u_regs[14] = infop->start_stack - 16 * 4;
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#else
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if (personality(infop->personality) == PER_LINUX32)
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regs->u_regs[14] = infop->start_stack - 16 * 4;
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else {
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regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
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if (bsd_type == target_freebsd) {
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regs->u_regs[8] = infop->start_stack;
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regs->u_regs[11] = infop->start_stack;
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}
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}
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#endif
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}
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#else
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ((x) == EM_SPARC)
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_SPARC
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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regs->psr = 0;
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regs->pc = infop->entry;
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regs->npc = regs->pc + 4;
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regs->y = 0;
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regs->u_regs[14] = infop->start_stack - 16 * 4;
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}
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#endif
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#endif
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#ifdef TARGET_PPC
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#define ELF_START_MMAP 0x80000000
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#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
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#define elf_check_arch(x) ((x) == EM_PPC64)
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#define ELF_CLASS ELFCLASS64
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#else
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#define elf_check_arch(x) ((x) == EM_PPC)
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#define ELF_CLASS ELFCLASS32
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#endif
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#ifdef TARGET_WORDS_BIGENDIAN
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#define ELF_DATA ELFDATA2MSB
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#else
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#define ELF_DATA ELFDATA2LSB
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#endif
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#define ELF_ARCH EM_PPC
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/*
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* We need to put in some extra aux table entries to tell glibc what
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* the cache block size is, so it can use the dcbz instruction safely.
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*/
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#define AT_DCACHEBSIZE 19
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#define AT_ICACHEBSIZE 20
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#define AT_UCACHEBSIZE 21
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/* A special ignored type value for PPC, for glibc compatibility. */
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#define AT_IGNOREPPC 22
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/*
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* The requirements here are:
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* - keep the final alignment of sp (sp & 0xf)
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* - make sure the 32-bit value at the first 16 byte aligned position of
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* AUXV is greater than 16 for glibc compatibility.
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* AT_IGNOREPPC is used for that.
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* - for compatibility with glibc ARCH_DLINFO must always be defined on PPC,
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* even if DLINFO_ARCH_ITEMS goes to zero or is undefined.
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*/
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#define DLINFO_ARCH_ITEMS 5
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#define ARCH_DLINFO \
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do { \
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NEW_AUX_ENT(AT_DCACHEBSIZE, 0x20); \
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NEW_AUX_ENT(AT_ICACHEBSIZE, 0x20); \
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NEW_AUX_ENT(AT_UCACHEBSIZE, 0); \
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/* \
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* Now handle glibc compatibility. \
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*/ \
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NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
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NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
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} while (0)
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static inline void init_thread(struct target_pt_regs *_regs, struct image_info *infop)
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{
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abi_ulong pos = infop->start_stack;
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abi_ulong tmp;
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#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
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abi_ulong entry, toc;
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#endif
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_regs->gpr[1] = infop->start_stack;
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#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
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get_user_u64(entry, infop->entry);
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entry += infop->load_addr;
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get_user_u64(toc, infop->entry + 8);
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toc += infop->load_addr;
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_regs->gpr[2] = toc;
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infop->entry = entry;
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#endif
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_regs->nip = infop->entry;
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/* Note that isn't exactly what regular kernel does
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* but this is what the ABI wants and is needed to allow
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* execution of PPC BSD programs.
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*/
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/* FIXME - what to for failure of get_user()? */
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get_user_ual(_regs->gpr[3], pos);
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pos += sizeof(abi_ulong);
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_regs->gpr[4] = pos;
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for (tmp = 1; tmp != 0; pos += sizeof(abi_ulong)) {
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get_user_ual(tmp, pos);
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}
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_regs->gpr[5] = pos;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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#endif
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#ifdef TARGET_MIPS
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ((x) == EM_MIPS)
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#ifdef TARGET_MIPS64
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#define ELF_CLASS ELFCLASS64
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#else
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#define ELF_CLASS ELFCLASS32
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#endif
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#ifdef TARGET_WORDS_BIGENDIAN
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#define ELF_DATA ELFDATA2MSB
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#else
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#define ELF_DATA ELFDATA2LSB
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#endif
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#define ELF_ARCH EM_MIPS
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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regs->cp0_status = 2 << CP0St_KSU;
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regs->cp0_epc = infop->entry;
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regs->regs[29] = infop->start_stack;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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#endif /* TARGET_MIPS */
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#ifdef TARGET_SH4
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ((x) == EM_SH)
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2LSB
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#define ELF_ARCH EM_SH
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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/* Check other registers XXXXX */
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regs->pc = infop->entry;
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regs->regs[15] = infop->start_stack;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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#endif
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#ifdef TARGET_CRIS
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ((x) == EM_CRIS)
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2LSB
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#define ELF_ARCH EM_CRIS
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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regs->erp = infop->entry;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 8192
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#endif
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#ifdef TARGET_M68K
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#define ELF_START_MMAP 0x80000000
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#define elf_check_arch(x) ((x) == EM_68K)
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_68K
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/* ??? Does this need to do anything?
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#define ELF_PLAT_INIT(_r) */
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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regs->usp = infop->start_stack;
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regs->sr = 0;
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regs->pc = infop->entry;
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 8192
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#endif
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#ifdef TARGET_ALPHA
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#define ELF_START_MMAP (0x30000000000ULL)
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#define elf_check_arch(x) ((x) == ELF_ARCH)
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#define ELF_CLASS ELFCLASS64
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_ALPHA
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static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
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{
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regs->pc = infop->entry;
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regs->ps = 8;
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regs->usp = infop->start_stack;
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regs->unique = infop->start_data; /* ? */
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printf("Set unique value to " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n",
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regs->unique, infop->start_data);
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}
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 8192
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#endif /* TARGET_ALPHA */
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#ifndef ELF_PLATFORM
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#define ELF_PLATFORM (NULL)
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#endif
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@ -1119,10 +780,6 @@ static void load_symbols(struct elfhdr *hdr, int fd)
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}
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continue;
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}
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#if defined(TARGET_ARM) || defined(TARGET_MIPS)
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/* The bottom address bit marks a Thumb or MIPS16 symbol. */
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syms[i].st_value &= ~(target_ulong)1;
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#endif
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i++;
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}
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