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| author | Yao Qi <yao@codesourcery.com> | 2011-09-18 14:18:07 +0000 |
|---|---|---|
| committer | Yao Qi <yao@codesourcery.com> | 2011-09-18 14:18:07 +0000 |
| commit | 2b16b2e33b3b4c5c0e1563de1ab761be73006be4 (patch) | |
| tree | a064295ff623af59d3d2afd72c5ea1fe4bdfd67b /gdb/arm-tdep.c | |
| parent | ab254057b844245b5db8d8faa397c1f69f48c889 (diff) | |
| download | gdb-2b16b2e33b3b4c5c0e1563de1ab761be73006be4.zip gdb-2b16b2e33b3b4c5c0e1563de1ab761be73006be4.tar.gz gdb-2b16b2e33b3b4c5c0e1563de1ab761be73006be4.tar.bz2 | |
gdb/
* arm-tdep.c (install_copro_load_store): PC is set 4-byte aligned.
(install_b_bl_blx): Likewise.
Diffstat (limited to 'gdb/arm-tdep.c')
| -rw-r--r-- | gdb/arm-tdep.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index d5e5dac..fc321cb 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -5475,6 +5475,8 @@ install_copro_load_store (struct gdbarch *gdbarch, struct regcache *regs, dsc->tmp[0] = displaced_read_reg (regs, dsc, 0); rn_val = displaced_read_reg (regs, dsc, rn); + /* PC should be 4-byte aligned. */ + rn_val = rn_val & 0xfffffffc; displaced_write_reg (regs, dsc, 0, rn_val, CANNOT_WRITE_PC); dsc->u.ldst.writeback = writeback; @@ -5555,10 +5557,15 @@ install_b_bl_blx (struct gdbarch *gdbarch, struct regcache *regs, dsc->u.branch.link = link; dsc->u.branch.exchange = exchange; + dsc->u.branch.dest = dsc->insn_addr; + if (link && exchange) + /* For BLX, offset is computed from the Align (PC, 4). */ + dsc->u.branch.dest = dsc->u.branch.dest & 0xfffffffc; + if (dsc->is_thumb) - dsc->u.branch.dest = dsc->insn_addr + 4 + offset; + dsc->u.branch.dest += 4 + offset; else - dsc->u.branch.dest = dsc->insn_addr + 8 + offset; + dsc->u.branch.dest += 8 + offset; dsc->cleanup = &cleanup_branch; } |