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3cd7c7d7ef
The save of r2 in __glink_PLTresolve is the culprit. Remove it, unless we know we need it for --plt-localentry. --plt-localentry should not be used with power10 pc-relative code that makes tail calls. The patch also removes use of r2 as a scratch reg in the ELFv2 __glink_PLTresolve. Using r2 isn't a problem, this is just reducing the number of scratch regs. bfd/ * elf64-ppc.c (GLINK_PLTRESOLVE_SIZE): Depend on has_plt_localentry0. (LD_R0_0R11, ADD_R11_R0_R11): Define. (ppc64_elf_tls_setup): Disable params->plt_localentry0 when power10 code detected. (ppc64_elf_size_stubs): Update __glink_PLTresolve eh_frame. (ppc64_elf_build_stubs): Move r2 save to start of __glink_PLTresolve, and only emit for has_plt_localentry0. Don't use r2 in the stub. ld/ * testsuite/ld-powerpc/elfv2so.d, * testsuite/ld-powerpc/notoc2.d, * testsuite/ld-powerpc/tlsdesc.wf, * testsuite/ld-powerpc/tlsdesc2.d, * testsuite/ld-powerpc/tlsdesc2.wf, * testsuite/ld-powerpc/tlsopt5.d, * testsuite/ld-powerpc/tlsopt5.wf, * testsuite/ld-powerpc/tlsopt6.d, * testsuite/ld-powerpc/tlsopt6.wf: Update __glink_PLTresolve.
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
Contents of the \.eh_frame section:
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0+ 0+10 0+ CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 4
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Data alignment factor: -8
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Return address column: 65
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Augmentation data: 1b
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DW_CFA_def_cfa: r1 ofs 0
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0+14 0+34 0+18 FDE cie=0+ pc=0+240\.\.0+2e0
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DW_CFA_advance_loc: 72 to 0+288
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DW_CFA_def_cfa_offset: 128
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DW_CFA_offset_extended_sf: r65 at cfa\+16
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DW_CFA_offset: r4 at cfa-72
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DW_CFA_offset: r5 at cfa-64
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DW_CFA_offset: r6 at cfa-56
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DW_CFA_offset: r7 at cfa-48
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DW_CFA_offset: r8 at cfa-40
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DW_CFA_offset: r9 at cfa-32
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DW_CFA_offset: r10 at cfa-24
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DW_CFA_offset: r11 at cfa-16
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DW_CFA_advance_loc: 68 to 0+2cc
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DW_CFA_def_cfa_offset: 0
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DW_CFA_restore: r4
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DW_CFA_restore: r5
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DW_CFA_restore: r6
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DW_CFA_restore: r7
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DW_CFA_restore: r8
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DW_CFA_restore: r9
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DW_CFA_restore: r10
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DW_CFA_restore: r11
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DW_CFA_advance_loc: 8 to 0+2d4
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DW_CFA_restore_extended: r65
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DW_CFA_nop
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DW_CFA_nop
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0+4c 0+14 0+50 FDE cie=0+ pc=0+2f8\.\.0+32c
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DW_CFA_advance_loc: 8 to 0+300
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DW_CFA_register: r65 in r12
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DW_CFA_advance_loc: 16 to 0+310
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DW_CFA_restore_extended: r65
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0+64 0+10 0+68 FDE cie=0+ pc=0+2e0\.\.0+2ec
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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