63fb881a04
Daniel Jacobowitz <dan@codesourcery.com> Richard Sandiford <rdsandiford@googlemail.com> * sysdeps/mips/dl-dtprocnum.h (DT_MIPS_NUM): Redefine. * sysdeps/mips/dl-lookup.c: New. * sysdeps/mips/do-lookup.h: New. * sysdeps/mips/dl-machine.h (ELF_MACHINE_NO_PLT): Remove definition. (STO_MIPS_PLT, R_MIPS_COPY, R_MIPS_JUMP_SLOT, DT_MIPS_PLTGOT): Define if needed. (ELF_MACHINE_JMP_SLOT): Alter definition and update comment. (elf_machine_type_class): Likewise. (ELF_MACHINE_PLT_REL): Define. (elf_machine_fixup_plt): New. (elf_machine_plt_value): New. (elf_machine_reloc): Handle jump slot and copy relocations. (elf_machine_lazy_rel): Point relocation place at PLT if required. (RESOLVE_GOTSYM): Take a relocation type argument. (elf_machine_got_rel): Bind lazy stubs directly to their target if !lazy. Skip lazy binding for PLT symbols. (elf_machine_runtime_setup): Fill in .got.plt header. * sysdeps/mips/dl-trampoline.c (IFNEWABI): New macro. (ELF_DL_PLT_FRAME_SIZE, ELF_DL_PLT_SAVE_ARG_REGS, ELF_DL_PLT_RESTORE_ARG_REGS): Define. (_dl_runtime_pltresolve): New. * sysdeps/mips/bits/linkmap.h: New file. * sysdeps/mips/tls-macros.h: Load $gp as required. Merge 32-bit and 64-bit versions. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (SYSCALL_ERROR_LABEL): Delete definition. * sysdeps/unix/sysv/linux/mips/nptl/sysdep-cancel.h (PSEUDO_CPLOAD, PSEUDO_ERRJMP, PSEUDO_SAVEGP, PSEUDO_LOADGP): Define. (PSEUDO): Use them. Move outside __PIC__. (PSEUDO_JMP): New. (CENABLE, CDISABLE): Use it.
65 lines
2 KiB
C
65 lines
2 KiB
C
/* Macros to support TLS testing in times of missing compiler support. */
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#include <sys/cdefs.h>
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#include <sys/asm.h>
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#define __STRING2(X) __STRING(X)
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#define ADDU __STRING2(PTR_ADDU)
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#define ADDIU __STRING2(PTR_ADDIU)
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#define LW __STRING2(PTR_L)
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/* Load the GOT pointer, which may not be in $28 in a non-PIC
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(abicalls pic0) function. */
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#ifndef __PIC__
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# if _MIPS_SIM != _ABI64
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# define LOAD_GP "move %[tmp], $28\n\tla $28, __gnu_local_gp\n\t"
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# else
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# define LOAD_GP "move %[tmp], $28\n\tdla $28, __gnu_local_gp\n\t"
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# endif
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# define UNLOAD_GP "\n\tmove $28, %[tmp]"
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#else
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# define LOAD_GP
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# define UNLOAD_GP
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#endif
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# define TLS_GD(x) \
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({ void *__result, *__tmp; \
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extern void *__tls_get_addr (void *); \
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asm (LOAD_GP ADDIU " %0, $28, %%tlsgd(" #x ")" \
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UNLOAD_GP \
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: "=r" (__result), [tmp] "=&r" (__tmp)); \
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(int *)__tls_get_addr (__result); })
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# define TLS_LD(x) \
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({ void *__result, *__tmp; \
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extern void *__tls_get_addr (void *); \
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asm (LOAD_GP ADDIU " %0, $28, %%tlsldm(" #x ")" \
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UNLOAD_GP \
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: "=r" (__result), [tmp] "=&r" (__tmp)); \
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__result = __tls_get_addr (__result); \
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asm ("lui $3,%%dtprel_hi(" #x ")\n\t" \
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"addiu $3,$3,%%dtprel_lo(" #x ")\n\t" \
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ADDU " %0,%0,$3" \
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: "+r" (__result) : : "$3"); \
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__result; })
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# define TLS_IE(x) \
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({ void *__result, *__tmp; \
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asm (".set push\n\t.set mips32r2\n\t" \
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"rdhwr\t%0,$29\n\t.set pop" \
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: "=v" (__result)); \
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asm (LOAD_GP LW " $3,%%gottprel(" #x ")($28)\n\t" \
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ADDU " %0,%0,$3" \
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UNLOAD_GP \
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: "+r" (__result), [tmp] "=&r" (__tmp) \
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: : "$3"); \
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__result; })
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# define TLS_LE(x) \
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({ void *__result; \
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asm (".set push\n\t.set mips32r2\n\t" \
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"rdhwr\t%0,$29\n\t.set pop" \
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: "=v" (__result)); \
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asm ("lui $3,%%tprel_hi(" #x ")\n\t" \
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"addiu $3,$3,%%tprel_lo(" #x ")\n\t" \
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ADDU " %0,%0,$3" \
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: "+r" (__result) : : "$3"); \
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__result; })
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