diff options
Diffstat (limited to 'gas/gen-sframe.c')
| -rw-r--r-- | gas/gen-sframe.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gas/gen-sframe.c b/gas/gen-sframe.c index 116d1f4..52c2f3f 100644 --- a/gas/gen-sframe.c +++ b/gas/gen-sframe.c @@ -988,7 +988,11 @@ sframe_xlate_do_def_cfa (struct sframe_xlate_ctx *xlate_ctx, get_dw_fde_start_addrS (xlate_ctx->dw_fde)); } /* Define the current CFA rule to use the provided register and - offset. */ + offset. However, if the register is not FP/SP, skip creating + SFrame stack trace info for the function. */ + if (cfi_insn->u.r != SFRAME_CFA_SP_REG + && cfi_insn->u.r != SFRAME_CFA_FP_REG) + return SFRAME_XLATE_ERR_NOTREPRESENTED; /* Not represented. */ sframe_fre_set_cfa_base_reg (cur_fre, cfi_insn->u.ri.reg); sframe_fre_set_cfa_offset (cur_fre, cfi_insn->u.ri.offset); cur_fre->merge_candidate = false; @@ -1006,9 +1010,14 @@ sframe_xlate_do_def_cfa_register (struct sframe_xlate_ctx *xlate_ctx, struct sframe_row_entry *last_fre = xlate_ctx->last_fre; /* Get the scratchpad FRE. This FRE will eventually get linked in. */ struct sframe_row_entry *cur_fre = xlate_ctx->cur_fre; + gas_assert (cur_fre); /* Define the current CFA rule to use the provided register (but to - keep the old offset). */ + keep the old offset). However, if the register is not FP/SP, + skip creating SFrame stack trace info for the function. */ + if (cfi_insn->u.r != SFRAME_CFA_SP_REG + && cfi_insn->u.r != SFRAME_CFA_FP_REG) + return SFRAME_XLATE_ERR_NOTREPRESENTED; /* Not represented. */ sframe_fre_set_cfa_base_reg (cur_fre, cfi_insn->u.ri.reg); sframe_fre_set_cfa_offset (cur_fre, last_fre->cfa_offset); cur_fre->merge_candidate = false; |