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| author | Alan Modra <amodra@gmail.com> | 2020-08-31 18:05:54 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-08-31 20:28:11 +0930 |
| commit | 169ec512592ee81a392c8c80d54e99d1b057229f (patch) | |
| tree | 9bc33a80239b49ff53acf969af5ab82e487bd0ac /gas/config | |
| parent | 1174d92070a85a8ad25e9b9686dd1b4921e96702 (diff) | |
| download | gdb-169ec512592ee81a392c8c80d54e99d1b057229f.zip gdb-169ec512592ee81a392c8c80d54e99d1b057229f.tar.gz gdb-169ec512592ee81a392c8c80d54e99d1b057229f.tar.bz2 | |
PR26493 UBSAN: tc-riscv.c left shift negative and not representable
PR 26493
* config/tc-riscv.c (riscv_ip): Cast X_add_number passed to
VALID_* macros to unsigned.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-riscv.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c index bcdbc3a..9df6d3f 100644 --- a/gas/config/tc-riscv.c +++ b/gas/config/tc-riscv.c @@ -1905,18 +1905,18 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, case '<': if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_IMM (imm_expr->X_add_number) || imm_expr->X_add_number <= 0 - || imm_expr->X_add_number >= 32) + || imm_expr->X_add_number >= 32 + || !VALID_RVC_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_IMM (imm_expr->X_add_number); goto rvc_imm_done; case '8': if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_UIMM8 (imm_expr->X_add_number) || imm_expr->X_add_number < 0 - || imm_expr->X_add_number >= 256) + || imm_expr->X_add_number >= 256 + || !VALID_RVC_UIMM8 ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_UIMM8 (imm_expr->X_add_number); goto rvc_imm_done; @@ -1924,7 +1924,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant || imm_expr->X_add_number == 0 - || !VALID_RVC_SIMM3 (imm_expr->X_add_number)) + || !VALID_RVC_SIMM3 ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_SIMM3 (imm_expr->X_add_number); goto rvc_imm_done; @@ -1932,7 +1932,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant || imm_expr->X_add_number == 0 - || !VALID_RVC_IMM (imm_expr->X_add_number)) + || !VALID_RVC_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_IMM (imm_expr->X_add_number); goto rvc_imm_done; @@ -1941,7 +1941,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, continue; if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_LW_IMM (imm_expr->X_add_number)) + || !VALID_RVC_LW_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_LW_IMM (imm_expr->X_add_number); goto rvc_imm_done; @@ -1950,7 +1950,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, continue; if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_LD_IMM (imm_expr->X_add_number)) + || !VALID_RVC_LD_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_LD_IMM (imm_expr->X_add_number); goto rvc_imm_done; @@ -1959,7 +1959,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, continue; if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_LWSP_IMM (imm_expr->X_add_number)) + || !VALID_RVC_LWSP_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_LWSP_IMM (imm_expr->X_add_number); @@ -1969,7 +1969,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, continue; if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_LDSP_IMM (imm_expr->X_add_number)) + || !VALID_RVC_LDSP_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_LDSP_IMM (imm_expr->X_add_number); @@ -1980,15 +1980,15 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, /* C.addiw, c.li, and c.andi allow zero immediate. C.addi allows zero immediate as hint. Otherwise this is same as 'j'. */ - || !VALID_RVC_IMM (imm_expr->X_add_number)) + || !VALID_RVC_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_IMM (imm_expr->X_add_number); goto rvc_imm_done; case 'K': if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_ADDI4SPN_IMM (imm_expr->X_add_number) - || imm_expr->X_add_number == 0) + || imm_expr->X_add_number == 0 + || !VALID_RVC_ADDI4SPN_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_ADDI4SPN_IMM (imm_expr->X_add_number); @@ -1996,8 +1996,8 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, case 'L': if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_ADDI16SP_IMM (imm_expr->X_add_number) - || imm_expr->X_add_number == 0) + || imm_expr->X_add_number == 0 + || !VALID_RVC_ADDI16SP_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_ADDI16SP_IMM (imm_expr->X_add_number); @@ -2007,7 +2007,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, continue; if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_SWSP_IMM (imm_expr->X_add_number)) + || !VALID_RVC_SWSP_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_SWSP_IMM (imm_expr->X_add_number); @@ -2017,7 +2017,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, continue; if (my_getSmallExpression (imm_expr, imm_reloc, s, p) || imm_expr->X_op != O_constant - || !VALID_RVC_SDSP_IMM (imm_expr->X_add_number)) + || !VALID_RVC_SDSP_IMM ((valueT) imm_expr->X_add_number)) break; ip->insn_opcode |= ENCODE_RVC_SDSP_IMM (imm_expr->X_add_number); |