mirror of
https://sourceware.org/git/binutils-gdb.git
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165f707ac8
This patch processes linker script assignment statements before ld opens DT_NEEDED libraries, in order to define symbols like __bss_start that might also be defined by a library, falsely triggering an error about "DSO missing from command line". The initial value won't be correct when assigning a symbol from dot, and I make no attempt to handle all expressions. For example, an assignment like "_start_foo = ADDR (.foo)" isn't valid until sections are laid out, so won't define _start_foo early. What's here should be enough for most common scripts, and hopefully won't perturb fragile scripts. bfd/ PR 22471 * elflink.c (_bfd_elf_merge_symbol): Allow weak symbols to override early passes over linker script symbols. * linker.c (_bfd_generic_link_add_one_symbol): Allow symbols to override early passes over linker script symbols. Clear ldscript_def on symbol definitions. ld/ PR 22471 * ldexp.c (struct definedness_hash_entry): Delete "by_script". Make "iteration" an 8-bit field, and update mask in all uses. (definedness_newfunc): Don't init "by_script". (update_definedness): Test ldscript_def rather than by_script. (is_sym_value): Likewise. (fold_name <DEFINED>): Return a result for first phase. Test ldscript_def. (fold_name <NAME>): Return a result for first phase. * ldlang.c (open_input_bfds): Process all assignments, not just defsym. (lang_process): Increment lang_statement_iteration before open_input_bfds. * testsuite/ld-mips-elf/tlsdyn-o32-1.d: Adjust for larger .dynsym. * testsuite/ld-mips-elf/tlsdyn-o32-1.got: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-2.d: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-2.got: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-3.d: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-3.got: Likewise.
101 lines
2.6 KiB
Makefile
101 lines
2.6 KiB
Makefile
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.*: file format elf32-tradbigmips
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Disassembly of section .text:
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.* <other>:
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.*: 3c1c0fc0 lui gp,0xfc0
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.*: 279c7b80 addiu gp,gp,31616
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.*: 0399e021 addu gp,gp,t9
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.*: 27bdfff0 addiu sp,sp,-16
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.*: afbe0008 sw s8,8\(sp\)
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.*: 03a0f025 move s8,sp
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.*: afbc0000 sw gp,0\(sp\)
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.*: 8f998018 lw t9,-32744\(gp\)
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.*: 27848028 addiu a0,gp,-32728
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.*: 0320f809 jalr t9
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.*: 00000000 nop
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.*: 8fdc0000 lw gp,0\(s8\)
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.*: 00000000 nop
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.*: 8f998018 lw t9,-32744\(gp\)
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.*: 2784801c addiu a0,gp,-32740
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.*: 0320f809 jalr t9
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.*: 00000000 nop
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.*: 8fdc0000 lw gp,0\(s8\)
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.*: 00000000 nop
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.*: 8f998018 lw t9,-32744\(gp\)
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.*: 27848034 addiu a0,gp,-32716
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.*: 0320f809 jalr t9
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.*: 00000000 nop
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.*: 8fdc0000 lw gp,0\(s8\)
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.*: 00401025 move v0,v0
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.*: 3c030000 lui v1,0x0
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.*: 24638000 addiu v1,v1,-32768
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.*: 00621821 addu v1,v1,v0
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.*: 7c02283b rdhwr v0,\$5
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.*: 8f838024 lw v1,-32732\(gp\)
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.*: 00000000 nop
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.*: 00621821 addu v1,v1,v0
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.*: 8f838030 lw v1,-32720\(gp\)
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.*: 00000000 nop
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.*: 00621821 addu v1,v1,v0
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.*: 7c02283b rdhwr v0,\$5
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.*: 3c030000 lui v1,0x0
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.*: 24639004 addiu v1,v1,-28668
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.*: 00621821 addu v1,v1,v0
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.*: 03c0e825 move sp,s8
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.*: 8fbe0008 lw s8,8\(sp\)
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.*: 03e00008 jr ra
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.*: 27bd0010 addiu sp,sp,16
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.*: 00000000 nop
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.* <__start>:
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.*: 3c1c0fc0 lui gp,0xfc0
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.*: 279c7ad0 addiu gp,gp,31440
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.*: 0399e021 addu gp,gp,t9
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.*: 27bdfff0 addiu sp,sp,-16
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.*: afbe0008 sw s8,8\(sp\)
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.*: 03a0f025 move s8,sp
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.*: afbc0000 sw gp,0\(sp\)
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.*: 8f998018 lw t9,-32744\(gp\)
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.*: 27848028 addiu a0,gp,-32728
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.*: 0320f809 jalr t9
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.*: 00000000 nop
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.*: 8fdc0000 lw gp,0\(s8\)
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.*: 00000000 nop
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.*: 8f998018 lw t9,-32744\(gp\)
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.*: 2784801c addiu a0,gp,-32740
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.*: 0320f809 jalr t9
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.*: 00000000 nop
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.*: 8fdc0000 lw gp,0\(s8\)
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.*: 00000000 nop
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.*: 8f998018 lw t9,-32744\(gp\)
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.*: 27848034 addiu a0,gp,-32716
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.*: 0320f809 jalr t9
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.*: 00000000 nop
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.*: 8fdc0000 lw gp,0\(s8\)
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.*: 00401025 move v0,v0
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.*: 3c030000 lui v1,0x0
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.*: 24638000 addiu v1,v1,-32768
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.*: 00621821 addu v1,v1,v0
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.*: 7c02283b rdhwr v0,\$5
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.*: 8f838024 lw v1,-32732\(gp\)
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.*: 00000000 nop
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.*: 00621821 addu v1,v1,v0
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.*: 8f838030 lw v1,-32720\(gp\)
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.*: 00000000 nop
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.*: 00621821 addu v1,v1,v0
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.*: 7c02283b rdhwr v0,\$5
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.*: 3c030000 lui v1,0x0
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.*: 24639004 addiu v1,v1,-28668
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.*: 00621821 addu v1,v1,v0
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.*: 03c0e825 move sp,s8
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.*: 8fbe0008 lw s8,8\(sp\)
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.*: 03e00008 jr ra
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.*: 27bd0010 addiu sp,sp,16
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.* <__tls_get_addr>:
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.*: 03e00008 jr ra
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.*: 00000000 nop
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...
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