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43224b1379
In _dl_tlsdesc_dynamic, there are three 'addi.d sp, sp, -size' instructions to allocate stack size for Float/LSX/LASX registers. Every 'addi.d sp, sp, -size' needs a cfi_adjust_cfa_offset because of sp is used to compute CFA. But only one 'addi.d sp, sp, -size' will be run according to HWCAP value. And all cfi_adjust_cfa_offset will be executed in stack unwinding, it result in incorrect CFA. Change _dl_tlsdesc_dynamic to _dl_tlsdesc_dynamic, _dl_tlsdesc_dynamic_lsx and _dl_tlsdesc_dynamic_lasx. Conflicting cfi instructions can be distributed to the three functions. And cfi instructions can correspond to stack down instructions.
20 lines
608 B
Plaintext
20 lines
608 B
Plaintext
#include <stddef.h>
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#include <sysdep.h>
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#include <tls.h>
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#include <link.h>
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#include <dl-tlsdesc.h>
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--
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-- Abuse tls.h macros to derive offsets relative to the thread register.
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TLSDESC_ARG offsetof(struct tlsdesc, arg)
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TLSDESC_GEN_COUNT offsetof(struct tlsdesc_dynamic_arg, gen_count)
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TLSDESC_MODID offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_module)
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TLSDESC_MODOFF offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_offset)
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TCBHEAD_DTV offsetof(tcbhead_t, dtv)
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DTV_COUNTER offsetof(dtv_t, counter)
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TLS_DTV_UNALLOCATED TLS_DTV_UNALLOCATED
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TLS_DTV_OFFSET TLS_DTV_OFFSET
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SIZE_OF_TCB sizeof(tcbhead_t)
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