pr_debug() can now result in code being generated even when #DEBUG
is not defined. That's not really desirable in the ftrace code
which we want to be snappy.
With CONFIG_DYNAMIC_DEBUG=y:
size before:
text data bss dec hex filename
3334 672 4 4010 faa arch/powerpc/kernel/ftrace.o
size after:
text data bss dec hex filename
2616 360 4 2980 ba4 arch/powerpc/kernel/ftrace.o
Signed-off-by: Michael Ellerman <mich...@ellerman.id.au>
---
arch/powerpc/kernel/ftrace.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c
index 70e2a73..5b078ee 100644
--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c
@@ -157,7 +157,7 @@ __ftrace_make_nop(struct module *mod,
* 0xe8, 0x4c, 0x00, 0x28, ld r2,40(r12)
*/
- pr_debug("ip:%lx jumps to %lx r2: %lx", ip, tramp, mod->arch.toc);
+ pr_devel("ip:%lx jumps to %lx r2: %lx", ip, tramp, mod->arch.toc);
/* Find where the trampoline jumps to */
if (probe_kernel_read(jmp, (void *)tramp, sizeof(jmp))) {
@@ -165,7 +165,7 @@ __ftrace_make_nop(struct module *mod,
return -EFAULT;
}
- pr_debug(" %08x %08x", jmp[0], jmp[1]);
+ pr_devel(" %08x %08x", jmp[0], jmp[1]);
/* verify that this is what we expect it to be */
if (((jmp[0] & 0xffff0000) != 0x3d820000) ||
@@ -181,18 +181,18 @@ __ftrace_make_nop(struct module *mod,
offset = ((unsigned)((unsigned short)jmp[0]) << 16) +
(int)((short)jmp[1]);
- pr_debug(" %x ", offset);
+ pr_devel(" %x ", offset);
/* get the address this jumps too */
tramp = mod->arch.toc + offset + 32;
- pr_debug("toc: %lx", tramp);
+ pr_devel("toc: %lx", tramp);
if (probe_kernel_read(jmp, (void *)tramp, 8)) {
printk(KERN_ERR "Failed to read %lx\n", tramp);
return -EFAULT;
}
- pr_debug(" %08x %08x\n", jmp[0], jmp[1]);
+ pr_devel(" %08x %08x\n", jmp[0], jmp[1]);
ptr = ((unsigned long)jmp[0] << 32) + jmp[1];
@@ -269,7 +269,7 @@ __ftrace_make_nop(struct module *mod,
* 0x4e, 0x80, 0x04, 0x20 bctr
*/
- pr_debug("ip:%lx jumps to %lx", ip, tramp);
+ pr_devel("ip:%lx jumps to %lx", ip, tramp);
/* Find where the trampoline jumps to */
if (probe_kernel_read(jmp, (void *)tramp, sizeof(jmp))) {
@@ -277,7 +277,7 @@ __ftrace_make_nop(struct module *mod,
return -EFAULT;
}
- pr_debug(" %08x %08x ", jmp[0], jmp[1]);
+ pr_devel(" %08x %08x ", jmp[0], jmp[1]);
/* verify that this is what we expect it to be */
if (((jmp[0] & 0xffff0000) != 0x3d600000) ||
@@ -293,7 +293,7 @@ __ftrace_make_nop(struct module *mod,
if (tramp & 0x8000)
tramp -= 0x10000;
- pr_debug(" %lx ", tramp);
+ pr_devel(" %lx ", tramp);
if (tramp != addr) {
printk(KERN_ERR
@@ -402,7 +402,7 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long
addr)
/* ld r2,40(r1) */
op[1] = 0xe8410028;
- pr_debug("write to %lx\n", rec->ip);
+ pr_devel("write to %lx\n", rec->ip);
if (probe_kernel_write((void *)ip, op, MCOUNT_INSN_SIZE * 2))
return -EPERM;
@@ -442,7 +442,7 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long
addr)
return -EINVAL;
}
- pr_debug("write to %lx\n", rec->ip);
+ pr_devel("write to %lx\n", rec->ip);
if (probe_kernel_write((void *)ip, &op, MCOUNT_INSN_SIZE))
return -EPERM;
--
1.6.2.1
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