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coreboot-kgpe-d16/src/lib/trace.c

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src/lib: Use SPDX for GPL-2.0-only files Done with sed and God Lines. Only done for C-like code for now. Change-Id: Id3a0b63272ebda3dad13803700bcff36d36f4815 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40054 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-04-02 23:48:34 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
Add support for the tracing infastructure in coreboot. The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:23:41 +02:00
#include <types.h>
#include <console/console.h>
#include <trace.h>
int volatile trace_dis = 0;
src/lib: Fix checkpatch warnings The script checkpatch.pl complains about these files. Fix the warnings. Change-Id: I4271cc35bb101447a316a75273cf8a6e95ed62d5 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/16011 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-01 21:20:40 +02:00
void __cyg_profile_func_enter(void *func, void *callsite)
Add support for the tracing infastructure in coreboot. The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:23:41 +02:00
{
if (trace_dis)
return;
DISABLE_TRACE
printf: Automatically prefix %p with 0x According to the POSIX standard, %p is supposed to print a pointer "as if by %#x", meaning the "0x" prefix should automatically be prepended. All other implementations out there (glibc, Linux, even libpayload) do this, so we should make coreboot match. This patch changes vtxprintf() accordingly and removes any explicit instances of "0x%p" from existing format strings. How to handle zero padding is less clear: the official POSIX definition above technically says there should be no automatic zero padding, but in practice most other implementations seem to do it and I assume most programmers would prefer it. The way chosen here is to always zero-pad to 32 bits, even on a 64-bit system. The rationale for this is that even on 64-bit systems, coreboot always avoids using any memory above 4GB for itself, so in practice all pointers should fit in that range and padding everything to 64 bits would just hurt readability. Padding it this way also helps pointers that do exceed 4GB (e.g. prints from MMU config on some arm64 systems) stand out better from the others. Change-Id: I0171b52f7288abb40e3fc3c8b874aee14b9bdcd6 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37626 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: David Guckian
2019-12-09 22:03:29 +01:00
printk(BIOS_INFO, "~%p(%p)\n", func, callsite);
Add support for the tracing infastructure in coreboot. The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:23:41 +02:00
ENABLE_TRACE
}
src/lib: Fix checkpatch warnings The script checkpatch.pl complains about these files. Fix the warnings. Change-Id: I4271cc35bb101447a316a75273cf8a6e95ed62d5 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/16011 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-01 21:20:40 +02:00
void __cyg_profile_func_exit(void *func, void *callsite)
Add support for the tracing infastructure in coreboot. The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:23:41 +02:00
{
}
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