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'origin/GP-6182_ghidorahrex_PR-8721_niooss-ledger_ebpf-fix-disassembly-atomic-instructions'
into patch (Closes #8721)
This commit is contained in:
Ryan Kurtz
2026-02-11 05:43:25 -05:00
parent 84e89eca9d af8a370421
commit 53beea47b3
1 changed files with 28 additions and 27 deletions
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Ghidra/Processors/eBPF/data/languages/eBPF.sinc
+28 -27
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@@ -272,38 +272,38 @@ DST4: dst is dst { local tmp:4 = dst:4; export tmp; }
# BPF_ADD:
# BPF_STX | BPF_ATOMIC | BPF_W
:STXXADDW [dst + off], src is imm=0x0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) + src:4; }
:AADD32 [dst + off], src is imm=0x0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) + src:4; }
# BPF_STX | BPF_ATOMIC | BPF_DW
:STXXADDDW [dst + off], src is imm=0x0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) + src; }
:AADD [dst + off], src is imm=0x0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) + src; }
# BPF_OR:
:STXXADDW [dst + off], src is imm=0x40 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) | src:4; }
:AOR32 [dst + off], src is imm=0x40 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) | src:4; }
:STXXADDDW [dst + off], src is imm=0x40 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) | src; }
:AOR [dst + off], src is imm=0x40 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) | src; }
# BPF_AND:
:STXXADDW [dst + off], src is imm=0x50 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) & src:4; }
:AAND32 [dst + off], src is imm=0x50 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) & src:4; }
:STXXADDDW [dst + off], src is imm=0x50 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) & src; }
:AAND [dst + off], src is imm=0x50 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) & src; }
# BPF_XOR:
:STXXADDW [dst + off], src is imm=0xa0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) ^ src:4; }
:AXOR32 [dst + off], src is imm=0xa0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 { *:4 (dst + off) = *:4 (dst + off) ^ src:4; }
:STXXADDDW [dst + off], src is imm=0xa0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) ^ src; }
:AXOR [dst + off], src is imm=0xa0 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 { *:8 (dst + off) = *:8 (dst + off) ^ src; }
# BPF_ADD | BPF_FETCH -> src = atomic_fetch_add(dst + off, src):
:STXXADDW [dst + off], src is imm=0x1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
:AFADD32 [dst + off], src is imm=0x1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
local tmp:4 = *:4 (dst + off);
*:4 (dst + off) = *:4 (dst + off) + src:4;
src = zext(tmp);
}
:STXXADDDW [dst + off], src is imm=0x1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
:AFADD [dst + off], src is imm=0x1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
local tmp:8 = *:8 (dst + off);
*:8 (dst + off) = *:8 (dst + off) + src;
src = tmp;
@@ -311,13 +311,13 @@ DST4: dst is dst { local tmp:4 = dst:4; export tmp; }
# BPF_OR | BPF_FETCH -> src = atomic_fetch_or(dst + off, src):
:STXXADDW [dst + off], src is imm=0x41 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
:AFOR32 [dst + off], src is imm=0x41 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
local tmp:4 = *:4 (dst + off);
*:4 (dst + off) = *:4 (dst + off) | src:4;
src = zext(tmp);
}
:STXXADDDW [dst + off], src is imm=0x41 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
:AFOR [dst + off], src is imm=0x41 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
local tmp:8 = *:8 (dst + off);
*:8 (dst + off) = *:8 (dst + off) | src;
src = tmp;
@@ -325,13 +325,13 @@ DST4: dst is dst { local tmp:4 = dst:4; export tmp; }
# BPF_AND | BPF_FETCH -> src = atomic_fetch_and(dst + off, src):
:STXXADDW [dst + off], src is imm=0x51 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
:AFAND32 [dst + off], src is imm=0x51 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
local tmp:4 = *:4 (dst + off);
*:4 (dst + off) = *:4 (dst + off) & src:4;
src = zext(tmp);
}
:STXXADDDW [dst + off], src is imm=0x51 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
:AFAND [dst + off], src is imm=0x51 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
local tmp:8 = *:8 (dst + off);
*:8 (dst + off) = *:8 (dst + off) & src;
src = tmp;
@@ -339,13 +339,13 @@ DST4: dst is dst { local tmp:4 = dst:4; export tmp; }
# BPF_XOR | BPF_FETCH -> src = atomic_fetch_xor(dst + off, src):
:STXXADDW [dst + off], src is imm=0xa1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
:AFXOR32 [dst + off], src is imm=0xa1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
local tmp:4 = *:4 (dst + off);
*:4 (dst + off) = *:4 (dst + off) ^ src:4;
src = zext(tmp);
}
:STXXADDDW [dst + off], src is imm=0xa1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
:AFXOR [dst + off], src is imm=0xa1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
local tmp:8 = *:8 (dst + off);
*:8 (dst + off) = *:8 (dst + off) ^ src;
src = tmp;
@@ -353,13 +353,13 @@ DST4: dst is dst { local tmp:4 = dst:4; export tmp; }
# BPF_XCHG -> src_reg = atomic_xchg(dst + off, src):
:STXXADDW [dst + off], src is imm=0xe1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
:AXCHG32 [dst + off], src is imm=0xe1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
local tmp:4 = *:4 (dst + off);
*:4 (dst + off) = src:4;
src = zext(tmp);
}
:STXXADDDW [dst + off], src is imm=0xe1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
:AXCHG [dst + off], src is imm=0xe1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
local tmp:8 = *:8 (dst + off);
*:8 (dst + off) = src;
src = tmp;
@@ -367,20 +367,21 @@ DST4: dst is dst { local tmp:4 = dst:4; export tmp; }
# BPF_CMPXCHG -> R0 = atomic_cmpxchg(dst + off, R0, src):
:STXXADDW [dst + off], src is imm=0xf1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
:ACMP32 [dst + off], src is imm=0xf1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x0 & op_insn_class=0x3 {
local tmp:4 = *:4 (dst + off);
if (R0:4 == tmp) goto <equal>;
R0 = zext(tmp);
<equal>
if (R0:4 != tmp) goto <notEqual>;
*:4 (dst + off) = src:4;
<notEqual>
R0 = zext(tmp);
}
:STXXADDDW [dst + off], src is imm=0xf1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
:ACMP [dst + off], src is imm=0xf1 & off & src & dst & op_ld_st_mode=0x6 & op_ld_st_size=0x3 & op_insn_class=0x3 {
local tmp:8 = *:8 (dst + off);
if (R0 == tmp) goto <equal>;
R0 = tmp;
<equal>
*:8 (dst + off) = src;
if (R0 != tmp) goto <notEqual>;
*:8 (dst + off) = src;
goto inst_next;
<notEqual>
R0 = tmp;
}
#Jump instructions (BPF_JMP, BPF_JMP32)