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gas signed overflow fixes

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* config/tc-aarch64.c (get_aarch64_insn): Avoid signed overflow.
	* config/tc-metag.c (parse_dalu): Likewise.
	* config/tc-tic4x.c (md_pcrel_from): Likewise.
	* config/tc-tic6x.c (tic6x_output_unwinding): Likewise.
	* config/tc-csky.c (parse_fexp): Use an unsigned char temp buffer.
	Don't use register keyword.  Avoid signed overflow and remove now
	unneccesary char masks.  Formatting.
	* config/tc-ia64.c (operand_match): Don't use shifts to sign extend.
	* config/tc-mep.c (mep_apply_fix): Likewise.
	* config/tc-pru.c (md_apply_fix): Likewise.
	* config/tc-riscv.c (load_const): Likewise.
	* config/tc-nios2.c (md_apply_fix): Likewise.  Don't potentially
	truncate fixup before right shift.  Tidy BFD_RELOC_NIOS2_HIADJ16
	calculation.
This commit is contained in:
Alan Modra
2019-12-12 09:29:45 +10:30
parent 84bc4ba816
commit 4f7cc14110
11 changed files with 68 additions and 52 deletions
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2
gas/config/tc-tic4x.c
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@@ -2937,7 +2937,7 @@ md_pcrel_from (fixS *fixP)
unsigned int op;
buf = (unsigned char *) fixP->fx_frag->fr_literal + fixP->fx_where;
op = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
op = ((unsigned) buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
return ((fixP->fx_where + fixP->fx_frag->fr_address) >> 2) +
tic4x_pc_offset (op);