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authorAlan Modra <amodra@gmail.com>2019-12-11 13:32:25 +1030
committerAlan Modra <amodra@gmail.com>2019-12-11 21:14:19 +1030
commit13c9c48599ebc8ad2f3a1fb9f672740219cd3841 (patch)
treeb304237be09f4f06469122cdcdda658299ebb1ba /bfd/libhppa.h
parent09c78487342254de6a4498f8b3aa1f3f1d508898 (diff)
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bfd signed overflow fixes
Aimed at quietening ubsan. include/ * opcode/mmix.h (PUSHGO_INSN_BYTE): Make unsigned. (GO_INSN_BYTE, SETL_INSN_BYTE, INCML_INSN_BYTE, INCMH_INSN_BYTE), (INCH_INSN_BYTE, SWYM_INSN_BYTE, JMP_INSN_BYTE): Likewise. bfd/ * elf32-rx.c (elf32_rx_relax_section): Avoid signed overflow. * libaout.h (N_SET_INFO, N_SET_FLAGS): Likewise. * netbsd.h (write_object_contents): Likewise. * elf32-arm.c (bfd_elf32_arm_vfp11_erratum_scan): Likewise. * libhppa.h (HPPA_R_CONSTANT): Don't signed extend with shifts. (stm32l4xx_create_replacing_stub_vldm): Don't truncate high bits with shifts. * elf32-nds32.h (R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG): Define using 1u shifted left. Ditto for other macros. * mmo.c (LOP): Make unsigned.
Diffstat (limited to 'bfd/libhppa.h')
-rw-r--r--bfd/libhppa.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/bfd/libhppa.h b/bfd/libhppa.h
index df50b7d..632f524 100644
--- a/bfd/libhppa.h
+++ b/bfd/libhppa.h
@@ -148,7 +148,7 @@ enum hppa_reloc_expr_type_alt
#define HPPA_R_ARG_RELOC(a) \
(((a) >> 22) & 0x3ff)
#define HPPA_R_CONSTANT(a) \
- ((((bfd_signed_vma)(a)) << (BFD_ARCH_SIZE-22)) >> (BFD_ARCH_SIZE-22))
+ ((((bfd_signed_vma) (a) & 0x3fffff) ^ 0x200000) - 0x200000)
#define HPPA_R_ADDEND(r, c) \
(((r) << 22) + ((c) & 0x3fffff))