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MIPS: Use WARN() in uasm for better diagnostics. 

On the off chance that uasm ever warns about overflow, there is no way
to know what the offending instruction is.

Change the printks to WARNs, so we can get a nice stack trace.  It has
the added benefit of being much more noticeable than the short single
line warning message, so is less likely to be ignored.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1905/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2010-12-27 18:18:29 -08:00 committed by Ralf Baechle
parent 2c8c53e28f
commit 8d662c8d34
1 changed files with 16 additions and 24 deletions
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40
arch/mips/mm/uasm.c
View File

@ -156,91 +156,83 @@ static struct insn insn_table[] __uasminitdata = {
static inline __uasminit u32 build_rs(u32 arg)
{
if (arg & ~RS_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~RS_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return (arg & RS_MASK) << RS_SH;
}
static inline __uasminit u32 build_rt(u32 arg)
{
if (arg & ~RT_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~RT_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return (arg & RT_MASK) << RT_SH;
}
static inline __uasminit u32 build_rd(u32 arg)
{
if (arg & ~RD_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~RD_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return (arg & RD_MASK) << RD_SH;
}
static inline __uasminit u32 build_re(u32 arg)
{
if (arg & ~RE_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~RE_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return (arg & RE_MASK) << RE_SH;
}
static inline __uasminit u32 build_simm(s32 arg)
{
if (arg > 0x7fff || arg < -0x8000)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg > 0x7fff || arg < -0x8000,
KERN_WARNING "Micro-assembler field overflow\n");
return arg & 0xffff;
}
static inline __uasminit u32 build_uimm(u32 arg)
{
if (arg & ~IMM_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~IMM_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return arg & IMM_MASK;
}
static inline __uasminit u32 build_bimm(s32 arg)
{
if (arg > 0x1ffff || arg < -0x20000)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg > 0x1ffff || arg < -0x20000,
KERN_WARNING "Micro-assembler field overflow\n");
if (arg & 0x3)
printk(KERN_WARNING "Invalid micro-assembler branch target\n");
WARN(arg & 0x3, KERN_WARNING "Invalid micro-assembler branch target\n");
return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff);
}
static inline __uasminit u32 build_jimm(u32 arg)
{
if (arg & ~((JIMM_MASK) << 2))
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~(JIMM_MASK << 2),
KERN_WARNING "Micro-assembler field overflow\n");
return (arg >> 2) & JIMM_MASK;
}
static inline __uasminit u32 build_scimm(u32 arg)
{
if (arg & ~SCIMM_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~SCIMM_MASK,
KERN_WARNING "Micro-assembler field overflow\n");
return (arg & SCIMM_MASK) << SCIMM_SH;
}
static inline __uasminit u32 build_func(u32 arg)
{
if (arg & ~FUNC_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return arg & FUNC_MASK;
}
static inline __uasminit u32 build_set(u32 arg)
{
if (arg & ~SET_MASK)
printk(KERN_WARNING "Micro-assembler field overflow\n");
WARN(arg & ~SET_MASK, KERN_WARNING "Micro-assembler field overflow\n");
return arg & SET_MASK;
}