mirror of
git://git.musl-libc.org/musl
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869a9df5b5
the workaround was for a bug that botched .gpword references to local labels, applying a nonsensical random offset of -0x4000 to them. this reverses commit5e396fb996and a removes a similar hack that was added to syscall_cp.s in the later commit756c8af858. it turns out one additional instance of the same idiom, the GETFUNCSYM macro in arch/mips/reloc.h, was still affected by the assembler bug and does not admit an easy workaround without making assumptions about how the macro is used. the previous workarounds made static linking work but left the early-stage dynamic linker broken and thus had limited usefulness. instead, affected users (using binutils versions older than 2.20) will need to fix the bug on the binutils side; the trivial patch is commit 453f5985b13e35161984bf1bf657bbab11515aa4 in the binutils-gdb repository.
30 lines
572 B
C
30 lines
572 B
C
__asm__(
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".set push\n"
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".set noreorder\n"
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".text \n"
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".global _" START "\n"
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".global " START "\n"
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".type _" START ", @function\n"
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".type " START ", @function\n"
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"_" START ":\n"
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"" START ":\n"
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" bal 1f \n"
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" move $fp, $0 \n"
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" .gpword . \n"
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" .gpword " START "_c \n"
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".weak _DYNAMIC \n"
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".hidden _DYNAMIC \n"
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" .gpword _DYNAMIC \n"
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"1: lw $gp, 0($ra) \n"
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" subu $gp, $ra, $gp \n"
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" move $4, $sp \n"
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" lw $5, 8($ra) \n"
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" addu $5, $5, $gp \n"
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" lw $25, 4($ra) \n"
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" addu $25, $25, $gp \n"
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" and $sp, $sp, -8 \n"
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" jalr $25 \n"
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" subu $sp, $sp, 16 \n"
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".set pop \n"
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);
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