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https://sourceware.org/git/binutils-gdb.git
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b9ca1af69e
This modifies the special __tls_get_addr stub that checks for a tlsdesc style __tls_index entry and returns early. Not using r11 isn't much benefit at the moment but a followup patch will preserve regs around the first call to __tls_get_addr when the __tls_index entry isn't yet set up for an early return. bfd/ * elf64-ppc.c (LD_R11_0R3, CMPDI_R11_0, STD_R11_0R1, LD_R11_0R1), (MTLR_R11): Don't define. (LD_R0_0R3, CMPDI_R0_0): Define. (build_tls_get_addr_stub): Don't use r11 in stub. ld/ * testsuite/ld-powerpc/tlsexe.d: Match new __tls_get_addr stub. * testsuite/ld-powerpc/tlsexeno.d: Likewise. * testsuite/ld-powerpc/tlsexetoc.d: Likewise. * testsuite/ld-powerpc/tlsexetocno.d: Likewise. * testsuite/ld-powerpc/tlsopt5.d: Likewise.
73 lines
2.8 KiB
Makefile
73 lines
2.8 KiB
Makefile
#source: tlstoc.s
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#as: -a64
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#ld: --no-tls-optimize tmpdir/libtlslib.so
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#objdump: -dr
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#target: powerpc64*-*-*
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.*
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Disassembly of section \.text:
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.* <.*plt_call\.__tls_get_addr(|_opt)>:
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.*: (e8 03 00 00|00 00 03 e8) ld r0,0\(r3\)
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.*: (e9 83 00 08|08 00 83 e9) ld r12,8\(r3\)
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.*: (2c 20 00 00|00 00 20 2c) cmpdi r0,0
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.*: (7c 60 1b 78|78 1b 60 7c) mr r0,r3
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.*: (7c 6c 6a 14|14 6a 6c 7c) add r3,r12,r13
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.*: (4d 82 00 20|20 00 82 4d) beqlr *
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.*: (7c 03 03 78|78 03 03 7c) mr r3,r0
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.*: (7c 08 02 a6|a6 02 08 7c) mflr r0
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.*: (f8 01 00 20|20 00 01 f8) std r0,32\(r1\)
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.*: (f8 41 00 28|28 00 41 f8) std r2,40\(r1\)
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.*: (e9 82 80 70|70 80 82 e9) ld r12,-32656\(r2\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (e8 42 80 78|78 80 42 e8) ld r2,-32648\(r2\)
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.*: (4e 80 04 21|21 04 80 4e) bctrl
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.*: (e8 41 00 28|28 00 41 e8) ld r2,40\(r1\)
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.*: (e8 01 00 20|20 00 01 e8) ld r0,32\(r1\)
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.*: (7c 08 03 a6|a6 03 08 7c) mtlr r0
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.*: (4e 80 00 20|20 00 80 4e) blr
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.* <\._start>:
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.*: (38 62 80 08|08 80 62 38) addi r3,r2,-32760
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.*: (4b ff ff b5|b5 ff ff 4b) bl .*
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.*: (60 00 00 00|00 00 00 60) nop
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.*: (38 62 80 18|18 80 62 38) addi r3,r2,-32744
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.*: (4b ff ff a9|a9 ff ff 4b) bl .*
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.*: (60 00 00 00|00 00 00 60) nop
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.*: (38 62 80 28|28 80 62 38) addi r3,r2,-32728
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.*: (4b ff ff 9d|9d ff ff 4b) bl .*
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.*: (60 00 00 00|00 00 00 60) nop
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.*: (38 62 80 38|38 80 62 38) addi r3,r2,-32712
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.*: (4b ff ff 91|91 ff ff 4b) bl .*
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.*: (60 00 00 00|00 00 00 60) nop
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.*: (39 23 80 40|40 80 23 39) addi r9,r3,-32704
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.*: (3d 23 00 00|00 00 23 3d) addis r9,r3,0
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.*: (81 49 80 48|48 80 49 81) lwz r10,-32696\(r9\)
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.*: (e9 22 80 48|48 80 22 e9) ld r9,-32696\(r2\)
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.*: (7d 49 18 2a|2a 18 49 7d) ldx r10,r9,r3
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.*: (e9 22 80 50|50 80 22 e9) ld r9,-32688\(r2\)
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.*: (7d 49 6a 2e|2e 6a 49 7d) lhzx r10,r9,r13
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.*: (89 4d 90 60|60 90 4d 89) lbz r10,-28576\(r13\)
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.*: (3d 2d 00 00|00 00 2d 3d) addis r9,r13,0
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.*: (99 49 90 68|68 90 49 99) stb r10,-28568\(r9\)
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.*: (00 00 00 00|e8 02 01 00) .*
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.*: (00 01 02 e8|00 00 00 00) .*
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.* <__glink_PLTresolve>:
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.*: (7d 88 02 a6|a6 02 88 7d) mflr r12
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.*: (42 9f 00 05|05 00 9f 42) bcl .*
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.*: (7d 68 02 a6|a6 02 68 7d) mflr r11
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.*: (e8 4b ff f0|f0 ff 4b e8) ld r2,-16\(r11\)
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.*: (7d 88 03 a6|a6 03 88 7d) mtlr r12
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.*: (7d 62 5a 14|14 5a 62 7d) add r11,r2,r11
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.*: (e9 8b 00 00|00 00 8b e9) ld r12,0\(r11\)
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.*: (e8 4b 00 08|08 00 4b e8) ld r2,8\(r11\)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (e9 6b 00 10|10 00 6b e9) ld r11,16\(r11\)
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.*: (4e 80 04 20|20 04 80 4e) bctr
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.* <__tls_get_addr_opt@plt>:
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.*: (38 00 00 00|00 00 00 38) li r0,0
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.*: (4b ff ff d0|d0 ff ff 4b) b .* <__glink_PLTresolve>
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