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| author | Yao Qi <yao.qi@linaro.org> | 2016-11-30 11:55:56 +0000 |
|---|---|---|
| committer | Yao Qi <yao.qi@linaro.org> | 2016-11-30 11:55:56 +0000 |
| commit | 7913a64cab3930fe524f0e38f85cfca11bd52dcb (patch) | |
| tree | b6335e421908ad5a699611940c4a2dc477e0e355 /gdb/arm-tdep.c | |
| parent | e9a38e0f5287ce7b4629f5f923191e38dd7355c0 (diff) | |
| download | gdb-7913a64cab3930fe524f0e38f85cfca11bd52dcb.zip gdb-7913a64cab3930fe524f0e38f85cfca11bd52dcb.tar.gz gdb-7913a64cab3930fe524f0e38f85cfca11bd52dcb.tar.bz2 | |
[ARM] Read memory as unsigned integer
When GDB read inferior memory as an address or an instruction,
it should be unsigned.
gdb:
2016-11-30 Yao Qi <yao.qi@linaro.org>
* arm-tdep.c (arm_scan_prologue): Read memory as unsigned integer.
(arm_exidx_unwind_sniffer): Likewise.
Diffstat (limited to 'gdb/arm-tdep.c')
| -rw-r--r-- | gdb/arm-tdep.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index 0b93df7..fd5d0de 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -1807,10 +1807,11 @@ arm_scan_prologue (struct frame_info *this_frame, the callee (or at the present moment if this is the innermost frame). The value stored there should be the address of the stmfd + 8. */ CORE_ADDR frame_loc; - LONGEST return_value; + ULONGEST return_value; frame_loc = get_frame_register_unsigned (this_frame, ARM_FP_REGNUM); - if (!safe_read_memory_integer (frame_loc, 4, byte_order, &return_value)) + if (!safe_read_memory_unsigned_integer (frame_loc, 4, byte_order, + &return_value)) return; else { @@ -2659,19 +2660,19 @@ arm_exidx_unwind_sniffer (const struct frame_unwind *self, ensure this, so that e.g. pthread cancellation works. */ if (arm_frame_is_thumb (this_frame)) { - LONGEST insn; + ULONGEST insn; - if (safe_read_memory_integer (get_frame_pc (this_frame) - 2, 2, - byte_order_for_code, &insn) + if (safe_read_memory_unsigned_integer (get_frame_pc (this_frame) - 2, + 2, byte_order_for_code, &insn) && (insn & 0xff00) == 0xdf00 /* svc */) exc_valid = 1; } else { - LONGEST insn; + ULONGEST insn; - if (safe_read_memory_integer (get_frame_pc (this_frame) - 4, 4, - byte_order_for_code, &insn) + if (safe_read_memory_unsigned_integer (get_frame_pc (this_frame) - 4, + 4, byte_order_for_code, &insn) && (insn & 0x0f000000) == 0x0f000000 /* svc */) exc_valid = 1; } |