mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
9a23f96e91
In the TLS GD/LD to LE optimization, ld replaces a sequence like addi 3,2,x@got@tlsgd R_PPC64_GOT_TLSGD16 x bl __tls_get_addr(x@tlsgd) R_PPC64_TLSGD x R_PPC64_REL24 __tls_get_addr nop with addis 3,13,x@tprel@ha R_PPC64_TPREL16_HA x addi 3,3,x@tprel@l R_PPC64_TPREL16_LO x nop When the tprel offset is small, this can be further optimized to nop addi 3,13,x@tprel nop bfd/ * elf64-ppc.c (struct ppc_link_hash_table): Add do_tls_opt. (ppc64_elf_tls_optimize): Set it. (ppc64_elf_relocate_section): Nop addis on TPREL16_HA, and convert insn on TPREL16_LO and TPREL16_LO_DS relocs to use r13 when addis would add zero. * elf32-ppc.c (struct ppc_elf_link_hash_table): Add do_tls_opt. (ppc_elf_tls_optimize): Set it. (ppc_elf_relocate_section): Nop addis on TPREL16_HA, and convert insn on TPREL16_LO relocs to use r2 when addis would add zero. gold/ * powerpc.cc (Target_powerpc::Relocate::relocate): Nop addis on TPREL16_HA, and convert insn on TPREL16_LO and TPREL16_LO_DS relocs to use r2/r13 when addis would add zero. ld/ * testsuite/ld-powerpc/tls.s: Add calls with tls markers. * testsuite/ld-powerpc/tls32.s: Likewise. * testsuite/ld-powerpc/powerpc.exp: Run tls marker tests. * testsuite/ld-powerpc/tls.d: Adjust for TPREL16_HA/LO optimization. * testsuite/ld-powerpc/tlsexe.d: Likewise. * testsuite/ld-powerpc/tlsexetoc.d: Likewise. * testsuite/ld-powerpc/tlsld.d: Likewise. * testsuite/ld-powerpc/tlsmark.d: Likewise. * testsuite/ld-powerpc/tlsopt4.d: Likewise. * testsuite/ld-powerpc/tlstoc.d: Likewise.
38 lines
1.3 KiB
Makefile
38 lines
1.3 KiB
Makefile
#source: tlsmark.s
|
|
#source: tlslib.s
|
|
#as: -a64
|
|
#ld:
|
|
#objdump: -dr
|
|
#target: powerpc64*-*-*
|
|
|
|
.*
|
|
|
|
Disassembly of section \.text:
|
|
|
|
0+100000e8 <_start>:
|
|
.*: (48 00 00 18|18 00 00 48) b 10000100 <_start\+0x18>
|
|
.*: (38 6d 90 00|00 90 6d 38) addi r3,r13,-28672
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (e8 83 00 00|00 00 83 e8) ld r4,0\(r3\)
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (48 00 00 0c|0c 00 00 48) b 10000108 <_start\+0x20>
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (4b ff ff e8|e8 ff ff 4b) b 100000ec <_start\+0x4>
|
|
.*: (38 6d 10 00|00 10 6d 38) addi r3,r13,4096
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (e8 83 80 00|00 80 83 e8) ld r4,-32768\(r3\)
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (48 00 00 0c|0c 00 00 48) b 10000124 <_start\+0x3c>
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (48 00 00 14|14 00 00 48) b 10000134 <_start\+0x4c>
|
|
.*: (38 6d 90 04|04 90 6d 38) addi r3,r13,-28668
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (e8 a3 00 00|00 00 a3 e8) ld r5,0\(r3\)
|
|
.*: (4b ff ff ec|ec ff ff 4b) b 1000011c <_start\+0x34>
|
|
.*: (38 6d 10 00|00 10 6d 38) addi r3,r13,4096
|
|
.*: (60 00 00 00|00 00 00 60) nop
|
|
.*: (e8 a3 80 04|04 80 a3 e8) ld r5,-32764\(r3\)
|
|
|
|
0+10000140 <\.__tls_get_addr>:
|
|
.*: (4e 80 00 20|20 00 80 4e) blr
|