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binutils-gdb/bfd/bpf-reloc.def

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BPF relocations review / refactoring - Removed not needed relocations. - Renamed relocations to match llvm and linux kernel. Relocation changes: R_BPF_INSN_64 => R_BPF_64_64 R_BPF_INSN_DISP32 => R_BPF_64_32 R_BPF_DATA_32 => R_BPF_64_ABS32 R_BPF_DATA_64 => R_BPF_64_ABS64 ChangeLog: * bfd/bpf-reloc.def: Created file with BPF_HOWTO macro entries. * bfd/reloc.c: Removed non needed relocations. * bfd/bfd-in2.h: regenerated. * bfd/libbfd.h: regenerated. * bfd/elf64-bpf.c: Changed relocations. * include/elf/bpf.h: Adapted relocation values/names. * gas/config/tc-bpf.c: Changed relocation mapping.
2023-03-16 16:39:52 +08:00
/* This reloc does nothing. */
BPF_HOWTO (R_BPF_NONE, /* type */
0, /* rightshift */
0, /* size */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bpf_elf_generic_reloc, /* special_function */
"R_BPF_NONE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false) /* pcrel_offset */
/* 64-immediate in LDDW instruction. */
BPF_HOWTO (R_BPF_64_64, /* type */
0, /* rightshift */
8, /* size */
64, /* bitsize */
false, /* pc_relative */
32, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bpf_elf_generic_reloc, /* special_function */
"R_BPF_64_64", /* name */
true, /* partial_inplace */
MINUS_ONE, /* src_mask */
MINUS_ONE, /* dst_mask */
true) /* pcrel_offset */
/* 32-bit data. */
BPF_HOWTO (R_BPF_64_ABS32, /* type */
0, /* rightshift */
4, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bpf_elf_generic_reloc, /* special_function */
"R_BPF_64_ABS32", /* name */
bpf: fix relocation addend incorrect symbol value Relocations installed by the BPF ELF backend were sometimes incorrectly adding the symbol value to the relocation entry addend, when the correct relocation value was already stored in the addend. This could lead to a relocation effectively adding the symbol value twice. Fix that by making bpf_elf_generic_reloc () more similar to the flow of bfd_install_relocation in the case where howto->install_addend is set, which is how it ought to behave. bfd/ * bpf-reloc.def (R_BPF_64_ABS32, R_BPF_64_ABS64) (R_BPF_64_NODYLD32): Set partial_inplace to true. * elf64-bpf.c (bpf_elf_generic_reloc): Do not include the value of the symbol when installing relocation. Copy some additional logic from bfd_elf_generic_reloc. gas/ * testsuite/gas/bpf/bpf.exp: Run new test. * testsuite/gas/bpf/elf-relo-1.d: New. * testsuite/gas/bpf/elf-relo-1.s: New.
2024-01-11 07:05:36 +08:00
true, /* partial_inplace */
BPF relocations review / refactoring - Removed not needed relocations. - Renamed relocations to match llvm and linux kernel. Relocation changes: R_BPF_INSN_64 => R_BPF_64_64 R_BPF_INSN_DISP32 => R_BPF_64_32 R_BPF_DATA_32 => R_BPF_64_ABS32 R_BPF_DATA_64 => R_BPF_64_ABS64 ChangeLog: * bfd/bpf-reloc.def: Created file with BPF_HOWTO macro entries. * bfd/reloc.c: Removed non needed relocations. * bfd/bfd-in2.h: regenerated. * bfd/libbfd.h: regenerated. * bfd/elf64-bpf.c: Changed relocations. * include/elf/bpf.h: Adapted relocation values/names. * gas/config/tc-bpf.c: Changed relocation mapping.
2023-03-16 16:39:52 +08:00
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
true) /* pcrel_offset */
/* 64-bit data. */
BPF_HOWTO (R_BPF_64_ABS64, /* type */
0, /* rightshift */
8, /* size */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bpf_elf_generic_reloc, /* special_function */
"R_BPF_64_ABS64", /* name */
bpf: fix relocation addend incorrect symbol value Relocations installed by the BPF ELF backend were sometimes incorrectly adding the symbol value to the relocation entry addend, when the correct relocation value was already stored in the addend. This could lead to a relocation effectively adding the symbol value twice. Fix that by making bpf_elf_generic_reloc () more similar to the flow of bfd_install_relocation in the case where howto->install_addend is set, which is how it ought to behave. bfd/ * bpf-reloc.def (R_BPF_64_ABS32, R_BPF_64_ABS64) (R_BPF_64_NODYLD32): Set partial_inplace to true. * elf64-bpf.c (bpf_elf_generic_reloc): Do not include the value of the symbol when installing relocation. Copy some additional logic from bfd_elf_generic_reloc. gas/ * testsuite/gas/bpf/bpf.exp: Run new test. * testsuite/gas/bpf/elf-relo-1.d: New. * testsuite/gas/bpf/elf-relo-1.s: New.
2024-01-11 07:05:36 +08:00
true, /* partial_inplace */
BPF relocations review / refactoring - Removed not needed relocations. - Renamed relocations to match llvm and linux kernel. Relocation changes: R_BPF_INSN_64 => R_BPF_64_64 R_BPF_INSN_DISP32 => R_BPF_64_32 R_BPF_DATA_32 => R_BPF_64_ABS32 R_BPF_DATA_64 => R_BPF_64_ABS64 ChangeLog: * bfd/bpf-reloc.def: Created file with BPF_HOWTO macro entries. * bfd/reloc.c: Removed non needed relocations. * bfd/bfd-in2.h: regenerated. * bfd/libbfd.h: regenerated. * bfd/elf64-bpf.c: Changed relocations. * include/elf/bpf.h: Adapted relocation values/names. * gas/config/tc-bpf.c: Changed relocation mapping.
2023-03-16 16:39:52 +08:00
0, /* src_mask */
MINUS_ONE, /* dst_mask */
true) /* pcrel_offset */
/* 32-bit PC-relative address in call instructions. */
BPF_HOWTO (R_BPF_64_32, /* type */
0, /* rightshift */
4, /* size */
32, /* bitsize */
true, /* pc_relative */
32, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bpf_elf_generic_reloc, /* special_function */
"R_BPF_64_32", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
true) /* pcrel_offset */
Revert "2.41 Release sources" This reverts commit 675b9d612cc59446e84e2c6d89b45500cb603a8d. See https://sourceware.org/pipermail/binutils/2023-August/128761.html.
2023-08-02 19:06:23 +08:00
/* 16-bit PC-relative address in load instructions. */
BPF_HOWTO (R_BPF_GNU_64_16, /* type */
0, /* rightshift */
2, /* size */
16, /* bitsize */
true, /* pc_relative */
16, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bpf_elf_generic_reloc, /* special_function */
"R_BPF_GNU_64_16", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
true) /* pcrel_offset */
Accept and ignore the R_BPF_64_NODLYD32 relocation.
2023-10-30 20:17:53 +08:00
/* R_BPF_64_NODYLD32 is not used by GNU tools - but it is generated by LLVM.
We provide an entry here so that tools like strip can safely handle BPF
bpf: Added linker support for R_BPF_64_NODYLD32. This patch adds linker support to patch R_BPF_64_NODYLD32 relocations. The implementation was based on comments and code in LLVM, as the GNU toolchain does not uses this relocation type.
2023-12-20 20:24:03 +08:00
binaries generated by other tools.
R_BPF_64_NODYLD32 should be fixed at linker like a R_BPF_64_ABS32.
The difference to ABS32 is that LLVM execution engine does not resolve
R_BPF_64_NODYLD32 relocations. */
Accept and ignore the R_BPF_64_NODLYD32 relocation.
2023-10-30 20:17:53 +08:00
BPF_HOWTO (R_BPF_64_NODYLD32, /* type */
0, /* rightshift */
bpf: Added linker support for R_BPF_64_NODYLD32. This patch adds linker support to patch R_BPF_64_NODYLD32 relocations. The implementation was based on comments and code in LLVM, as the GNU toolchain does not uses this relocation type.
2023-12-20 20:24:03 +08:00
4, /* size */
32, /* bitsize */
Accept and ignore the R_BPF_64_NODLYD32 relocation.
2023-10-30 20:17:53 +08:00
false, /* pc_relative */
0, /* bitpos */
bpf: Added linker support for R_BPF_64_NODYLD32. This patch adds linker support to patch R_BPF_64_NODYLD32 relocations. The implementation was based on comments and code in LLVM, as the GNU toolchain does not uses this relocation type.
2023-12-20 20:24:03 +08:00
complain_overflow_bitfield, /* complain_on_overflow */
Accept and ignore the R_BPF_64_NODLYD32 relocation.
2023-10-30 20:17:53 +08:00
bpf_elf_generic_reloc, /* special_function */
"R_BPF_64_NODYLD32", /* name */
bpf: fix relocation addend incorrect symbol value Relocations installed by the BPF ELF backend were sometimes incorrectly adding the symbol value to the relocation entry addend, when the correct relocation value was already stored in the addend. This could lead to a relocation effectively adding the symbol value twice. Fix that by making bpf_elf_generic_reloc () more similar to the flow of bfd_install_relocation in the case where howto->install_addend is set, which is how it ought to behave. bfd/ * bpf-reloc.def (R_BPF_64_ABS32, R_BPF_64_ABS64) (R_BPF_64_NODYLD32): Set partial_inplace to true. * elf64-bpf.c (bpf_elf_generic_reloc): Do not include the value of the symbol when installing relocation. Copy some additional logic from bfd_elf_generic_reloc. gas/ * testsuite/gas/bpf/bpf.exp: Run new test. * testsuite/gas/bpf/elf-relo-1.d: New. * testsuite/gas/bpf/elf-relo-1.s: New.
2024-01-11 07:05:36 +08:00
true, /* partial_inplace */
bpf: Added linker support for R_BPF_64_NODYLD32. This patch adds linker support to patch R_BPF_64_NODYLD32 relocations. The implementation was based on comments and code in LLVM, as the GNU toolchain does not uses this relocation type.
2023-12-20 20:24:03 +08:00
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
true) /* pcrel_offset */
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