From 2b2f5df9024a4e17e7b63887c6610b36bfec4542 Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Thu, 28 Jun 2012 15:38:15 +0000 Subject: [PATCH] PR gas/14260 * config/tc-arm.c (encode_arm_addr_mode_common): Generate an error message if literal pool addressing is used. * gas/arm/ldr-t-bad.s: Add test of bogus use of literal pool addressing. * gas/arm/ldr-t-bad.l: Update expected assembler error message output. --- gas/ChangeLog | 6 ++++++ gas/config/tc-arm.c | 28 ++++++++++++++++------------ gas/testsuite/ChangeLog | 8 ++++++++ gas/testsuite/gas/arm/ldr-t-bad.l | 2 +- gas/testsuite/gas/arm/ldr-t-bad.s | 2 ++ 5 files changed, 33 insertions(+), 13 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index 0d833a9..111a211 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,11 @@ 2012-06-28 Nick Clifton + PR gas/14260 + * config/tc-arm.c (encode_arm_addr_mode_common): Generate an error + message if literal pool addressing is used. + +2012-06-28 Nick Clifton + * dwarf2dbg.c (DWARF2_USE_FIXED_ADVANCE_PC): Enable when using linker relaxation. (dwarf2_gen_line_info): Generate real, local, labels for line diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index 2257d4e..43e20d1 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -7042,7 +7042,11 @@ encode_arm_shifter_operand (int i) static void encode_arm_addr_mode_common (int i, bfd_boolean is_t) { - gas_assert (inst.operands[i].isreg); + /* PR 14260: + Generate an error if the operand is not a register. */ + constraint (!inst.operands[i].isreg, + _("Instruction does not support =N addresses")); + inst.instruction |= inst.operands[i].reg << 16; if (inst.operands[i].preind) @@ -21269,8 +21273,8 @@ md_apply_fix (fixS * fixP, thumb_bl_common: #ifdef OBJ_ELF - if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4 && - fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX) + if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4 + && fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX) fixP->fx_r_type = BFD_RELOC_THUMB_PCREL_BRANCH23; #endif @@ -21281,15 +21285,15 @@ md_apply_fix (fixS * fixP, 1 of the base address. */ value = (value + 1) & ~ 1; - if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff)) - { - if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2))) - as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE); - else if ((value & ~0x1ffffff) - && ((value & ~0x1ffffff) != ~0x1ffffff)) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("Thumb2 branch out of range")); - } + if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff)) + { + if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2))) + as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE); + else if ((value & ~0x1ffffff) + && ((value & ~0x1ffffff) != ~0x1ffffff)) + as_bad_where (fixP->fx_file, fixP->fx_line, + _("Thumb2 branch out of range")); + } if (fixP->fx_done || !seg->use_rela_p) encode_thumb2_b_bl_offset (buf, value); diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index d76f013..6e41589 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,5 +1,13 @@ 2012-06-28 Nick Clifton + PR gas/14260 + * gas/arm/ldr-t-bad.s: Add test of bogus use of literal pool + addressing. + * gas/arm/ldr-t-bad.l: Update expected assembler error message + output. + +2012-06-28 Nick Clifton + * gas/lns/lns.exp: Use alternate lns-common test for targets enabling linker relaxation. * gas/lns/lns-big-delta.d: Allow for output from architectures diff --git a/gas/testsuite/gas/arm/ldr-t-bad.l b/gas/testsuite/gas/arm/ldr-t-bad.l index bda9eef..95f420a 100644 --- a/gas/testsuite/gas/arm/ldr-t-bad.l +++ b/gas/testsuite/gas/arm/ldr-t-bad.l @@ -13,4 +13,4 @@ [^:]*:56: Error: r15 not allowed here -- `str r15,\[r1,r2\]' [^:]*:57: Error: r13 not allowed here -- `str r1,\[r2,r13\]' [^:]*:58: Error: r15 not allowed here -- `str r1,\[r2,r15\]' - +[^:]*:61: Error: Instruction does not support =N addresses -- `ldrt r0,=0x0' diff --git a/gas/testsuite/gas/arm/ldr-t-bad.s b/gas/testsuite/gas/arm/ldr-t-bad.s index ee76a3e..81c17a5 100644 --- a/gas/testsuite/gas/arm/ldr-t-bad.s +++ b/gas/testsuite/gas/arm/ldr-t-bad.s @@ -57,3 +57,5 @@ str r1, [r2, r13] str r1, [r2, r15] + @ PR 14260 + ldrt r0, =0x0 -- 2.7.4