diff options
| author | John Baldwin <jhb@FreeBSD.org> | 2016-06-11 07:43:46 -0700 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2016-07-06 06:08:43 -0700 |
| commit | 9ca107148e888a7f7aaf3582569708684bd04690 (patch) | |
| tree | daeb1ac2f666b72c923378c1d49a7673ff38d1a0 /gdb/sh64-tdep.c | |
| parent | d66ff635bec25bf940cc6d173a92f7796f18b310 (diff) | |
Set uses_fp for frames with a valid FP register explicitly.
Since CORE_ADDR is unsigned, the saved FP register is always greater than
or equal to zero. Replace the comparison by explicitly setting uses_fp to
1 for frames with a valid FP register.
gdb/ChangeLog:
* sh64-tdep.c (sh64_analyze_prologue): Set "uses_fp" when setting
the MEDIA_FP_REGNUM register.
Diffstat (limited to 'gdb/sh64-tdep.c')
| -rw-r--r-- | gdb/sh64-tdep.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/gdb/sh64-tdep.c b/gdb/sh64-tdep.c index e6b1e27020..ee8d19ccd9 100644 --- a/gdb/sh64-tdep.c +++ b/gdb/sh64-tdep.c @@ -901,8 +901,11 @@ sh64_analyze_prologue (struct gdbarch *gdbarch, } else if (IS_MOV_R14 (insn)) - cache->saved_regs[MEDIA_FP_REGNUM] = - cache->sp_offset - ((((insn & 0xf) ^ 0x8) - 0x8) << 2); + { + cache->saved_regs[MEDIA_FP_REGNUM] = + cache->sp_offset - ((((insn & 0xf) ^ 0x8) - 0x8) << 2); + cache->uses_fp = 1; + } else if (IS_MOV_R0 (insn)) { @@ -931,6 +934,7 @@ sh64_analyze_prologue (struct gdbarch *gdbarch, /* Store R14 at r0_val-4 from SP. Decrement r0 by 4. */ cache->saved_regs[MEDIA_FP_REGNUM] = cache->sp_offset - (r0_val - 4); + cache->uses_fp = 1; r0_val -= 4; } @@ -957,22 +961,25 @@ sh64_analyze_prologue (struct gdbarch *gdbarch, 9) << 2); else if (IS_STQ_R14_R15 (insn)) - cache->saved_regs[MEDIA_FP_REGNUM] - = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10, - 9) << 3); + { + cache->saved_regs[MEDIA_FP_REGNUM] + = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10, + 9) << 3); + cache->uses_fp = 1; + } else if (IS_STL_R14_R15 (insn)) - cache->saved_regs[MEDIA_FP_REGNUM] - = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10, - 9) << 2); + { + cache->saved_regs[MEDIA_FP_REGNUM] + = cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10, + 9) << 2); + cache->uses_fp = 1; + } else if (IS_MOV_SP_FP_MEDIA (insn)) break; } } - - if (cache->saved_regs[MEDIA_FP_REGNUM] >= 0) - cache->uses_fp = 1; } static CORE_ADDR |