diff options
| author | Alan Modra <amodra@gmail.com> | 2019-12-17 14:26:39 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-17 14:32:23 +1030 |
| commit | 62e6599087efba193e0156d89ee65fb74fc99cb2 (patch) | |
| tree | e6316a78fdde602c597410a4dfa4b09815c6724a | |
| parent | 45d735237b7edf282131d570a7a9f6aa9ee1bd9c (diff) | |
| download | gdb-62e6599087efba193e0156d89ee65fb74fc99cb2.zip gdb-62e6599087efba193e0156d89ee65fb74fc99cb2.tar.gz gdb-62e6599087efba193e0156d89ee65fb74fc99cb2.tar.bz2 | |
ubsan: bpf: left shift cannot be represented in type 'DI' (aka 'long')
cpu/
* bpf.cpu (f-imm64): Avoid signed overflow.
opcodes/
* bpf-ibld.c: Regenerate.
| -rw-r--r-- | cpu/ChangeLog | 4 | ||||
| -rw-r--r-- | cpu/bpf.cpu | 4 | ||||
| -rw-r--r-- | opcodes/ChangeLog | 4 | ||||
| -rw-r--r-- | opcodes/bpf-ibld.c | 2 |
4 files changed, 11 insertions, 3 deletions
diff --git a/cpu/ChangeLog b/cpu/ChangeLog index 688c596..8755ee7 100644 --- a/cpu/ChangeLog +++ b/cpu/ChangeLog @@ -1,3 +1,7 @@ +2019-12-17 Alan Modra <amodra@gmail.com> + + * bpf.cpu (f-imm64): Avoid signed overflow. + 2019-12-16 Alan Modra <amodra@gmail.com> * xstormy16.cpu (f-rel12a): Avoid signed overflow. diff --git a/cpu/bpf.cpu b/cpu/bpf.cpu index db2301c..d5a8eac 100644 --- a/cpu/bpf.cpu +++ b/cpu/bpf.cpu @@ -288,8 +288,8 @@ (set (ifield f-imm64-a) (and (ifield f-imm64) (const #xffffffff))))) (extract (sequence () (set (ifield f-imm64) - (or (sll DI (zext DI (ifield f-imm64-c)) (const 32)) - (zext DI (ifield f-imm64-a))))))) + (or (sll UDI (zext UDI (ifield f-imm64-c)) (const 32)) + (zext UDI (ifield f-imm64-a))))))) ;;; Operands diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 898a916..26f25a4 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,7 @@ +2019-12-17 Alan Modra <amodra@gmail.com> + + * bpf-ibld.c: Regenerate. + 2019-12-16 Alan Modra <amodra@gmail.com> * aarch64-dis.c (sign_extend): Return uint64_t. Rewrite without diff --git a/opcodes/bpf-ibld.c b/opcodes/bpf-ibld.c index b14c28b..e2601dd 100644 --- a/opcodes/bpf-ibld.c +++ b/opcodes/bpf-ibld.c @@ -689,7 +689,7 @@ bpf_cgen_extract_operand (CGEN_CPU_DESC cd, length = extract_normal (cd, ex_info, insn_value, 0, 96, 31, 32, 32, total_length, pc, & fields->f_imm64_c); if (length <= 0) break; { - FLD (f_imm64) = ((((((DI) (UINT) (FLD (f_imm64_c)))) << (32))) | (((DI) (UINT) (FLD (f_imm64_a))))); + FLD (f_imm64) = ((((((UDI) (UINT) (FLD (f_imm64_c)))) << (32))) | (((UDI) (UINT) (FLD (f_imm64_a))))); } } break; |