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| author | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-01 12:34:01 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-01 12:34:01 -0500 |
| commit | 9454c23852ca6d7aec89fd6fd46a046c323caac3 (patch) | |
| tree | 794be65345027b5adea3720a43124fee338333a5 /arch/arm64/kernel/kgdb.c | |
| parent | a04bee8285a71cdbb9076c3dc38be1f0b9a6b4b3 (diff) | |
| parent | 4ef33685aa0957d771e068b60a5f3ca6b47ade1c (diff) | |
| download | linux-9454c23852ca6d7aec89fd6fd46a046c323caac3.tar.bz2 | |
Merge branch 'pci/msi-affinity' into next
Conflicts:
drivers/nvme/host/pci.c
Diffstat (limited to 'arch/arm64/kernel/kgdb.c')
| -rw-r--r-- | arch/arm64/kernel/kgdb.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c index b67531a13136..b5f063e5eff7 100644 --- a/arch/arm64/kernel/kgdb.c +++ b/arch/arm64/kernel/kgdb.c @@ -58,7 +58,17 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { { "x30", 8, offsetof(struct pt_regs, regs[30])}, { "sp", 8, offsetof(struct pt_regs, sp)}, { "pc", 8, offsetof(struct pt_regs, pc)}, - { "pstate", 8, offsetof(struct pt_regs, pstate)}, + /* + * struct pt_regs thinks PSTATE is 64-bits wide but gdb remote + * protocol disagrees. Therefore we must extract only the lower + * 32-bits. Look for the big comment in asm/kgdb.h for more + * detail. + */ + { "pstate", 4, offsetof(struct pt_regs, pstate) +#ifdef CONFIG_CPU_BIG_ENDIAN + + 4 +#endif + }, { "v0", 16, -1 }, { "v1", 16, -1 }, { "v2", 16, -1 }, @@ -128,6 +138,8 @@ sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *task) memset((char *)gdb_regs, 0, NUMREGBYTES); thread_regs = task_pt_regs(task); memcpy((void *)gdb_regs, (void *)thread_regs->regs, GP_REG_BYTES); + /* Special case for PSTATE (check comments in asm/kgdb.h for details) */ + dbg_get_reg(33, gdb_regs + GP_REG_BYTES, thread_regs); } void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc) |