logging: syst: add support for catalog messages
MIPI Sys-T catalog messages are similar to dictionary logging where an ID is emitted instead of the format string. This allows the format strings to be removed from the final binary to save a few bytes. This adds the necessary bits to determine to emit catalog messages when appropriate. Note that this implementation copies the argument list as-is with string arguments stitched together since the format strings are assumed to have been removed and they cannot be examined to properly convert the argument lists into catalog message payloads. Because of this, various build asserts are there to avoid building for configurations where they are known not to work. Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung
Carles Cufí
parent
f7d3d0268e
commit
ba488d14d4
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@ -1698,7 +1698,11 @@ list(APPEND
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if(CONFIG_LOG_DICTIONARY_SUPPORT)
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if(CONFIG_LOG_DICTIONARY_SUPPORT)
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set(log_dict_db_output --json=${PROJECT_BINARY_DIR}/log_dictionary.json)
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set(log_dict_db_output --json=${PROJECT_BINARY_DIR}/log_dictionary.json)
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elseif(CONFIG_LOG_MIPI_SYST_USE_CATALOG)
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set(log_dict_db_output --syst=${PROJECT_BINARY_DIR}/mipi_syst_collateral.xml)
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endif()
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if(log_dict_db_output)
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list(APPEND
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list(APPEND
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post_build_commands
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post_build_commands
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COMMAND
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COMMAND
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@ -27,6 +27,23 @@ config LOG_MIPI_SYST_ENABLE
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help
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help
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Enable MIPI SyS-T format output for the logger system.
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Enable MIPI SyS-T format output for the logger system.
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config LOG_MIPI_SYST_USE_CATALOG
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bool "Use MIPI Sys-T Catalog for logging"
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depends on LOG2 && LOG_MIPI_SYST_ENABLE
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select LOG2_FMT_SECTION
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select LOG2_MSG_PKG_ALWAYS_ADD_RO_STRING_IDXS
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help
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Use MIPI Sys-T Catalog for logging instead of plain text.
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config LOG_MIPI_SYST_CATALOG_ARGS_BUFFER_SIZE
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int "Size of temporary arguments buffer when using Sys-T Catalog"
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depends on LOG_MIPI_SYST_USE_CATALOG
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default 1024
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help
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The size (in bytes) of the temporary buffer to store the expanded
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argument list needed for the MIPI Sys-T library for processing
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catalog messages.
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config LOG_DICTIONARY_SUPPORT
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config LOG_DICTIONARY_SUPPORT
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bool
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bool
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depends on LOG2
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depends on LOG2
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@ -9,7 +9,10 @@
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#include <ctype.h>
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#include <ctype.h>
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#include <kernel.h>
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#include <kernel.h>
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#include <mipi_syst.h>
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#include <mipi_syst.h>
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#include <spinlock.h>
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#include <toolchain.h>
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#include <sys/__assert.h>
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#include <sys/__assert.h>
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#include <linker/utils.h>
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#include <logging/log.h>
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#include <logging/log.h>
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#include <logging/log_ctrl.h>
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#include <logging/log_ctrl.h>
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#include <logging/log_output.h>
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#include <logging/log_output.h>
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@ -770,7 +773,8 @@ static void hexdump2_print(const uint8_t *data, uint32_t length,
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}
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}
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}
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}
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static int mipi_formatter(cbprintf_cb out, void *ctx,
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#ifndef CONFIG_LOG_MIPI_SYST_USE_CATALOG
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static int mipi_vprintf_formatter(cbprintf_cb out, void *ctx,
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const char *fmt, va_list ap)
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const char *fmt, va_list ap)
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{
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{
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struct log_msg2 *msg = ctx;
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struct log_msg2 *msg = ctx;
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@ -780,6 +784,394 @@ static int mipi_formatter(cbprintf_cb out, void *ctx,
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return 0;
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return 0;
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}
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}
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#else
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/*
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* TODO: Big endian support.
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*
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* MIPI Sys-T catalog messages require arguments to be in little endian.
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* Currently, if the format strings are removed (which is very highly
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* probable with usage of catalog messages), there is no way to
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* distinguish arguments in va_list anymore, and thus no longer able
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* to convert endianness. So assert that we only support little endian
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* machines for now.
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*/
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BUILD_ASSERT(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__,
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"Does not support big endian machines at the moment!");
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/*
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* TODO: Support x86-32 and long double.
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*
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* The argument of long double on x86 32-bit is 3 bytes. However,
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* MIPI Sys-T requires 4 bytes for this. Currently, since we are
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* copying the argument list as-is, and no way to know which
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* argument is long double, a long double argument cannot be
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* expanded to 4 bytes. So error out here to prevent it being
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* used at all.
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*/
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#if defined(CONFIG_X86) && !defined(CONFIG_X86_64) && defined(CONFIG_CBPRINTF_PACKAGE_LONGDOUBLE)
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#error "x86-32 and CONFIG_CBPRINTF_PACKAGE_LONGDOUBLE is not supported!"
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#endif
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/*
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* TODO: Support integer arguments under 64-bit systems.
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*
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* On 64-bit systems, an integer argument is of 8 bytes even though
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* sizeof(int) == 4. MIPI Sys-T expects an integer argument to be 4 bytes.
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* Currently, since we are copying argument list as-is, and no way to
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* know which argument is integer, a 32-bit integer cannot be
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* shrunk to 4 bytes for output. So error out here to prevent it
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* being used at all.
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*/
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#ifdef CONFIG_64BIT
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#error "64-bit is not support at the moment!"
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#endif
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#ifdef CONFIG_64BIT
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#define MIPI_SYST_CATMSG_ARGS_COPY MIPI_SYST_CATALOG64_ARGS_COPY
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#else
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#define MIPI_SYST_CATMSG_ARGS_COPY MIPI_SYST_CATALOG32_ARGS_COPY
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#endif
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static inline bool is_in_log_strings_section(const void *addr)
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{
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extern const char __log_strings_start[];
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extern const char __log_strings_end[];
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if (((const char *)addr >= (const char *)__log_strings_start) &&
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((const char *)addr < (const char *)__log_strings_end)) {
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return true;
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}
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return false;
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}
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static struct k_spinlock payload_lock;
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static uint8_t payload_buf[CONFIG_LOG_MIPI_SYST_CATALOG_ARGS_BUFFER_SIZE];
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static const uint8_t * const payload_buf_end =
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&payload_buf[CONFIG_LOG_MIPI_SYST_CATALOG_ARGS_BUFFER_SIZE];
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enum string_list {
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NO_STRING_LIST,
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RO_STR_IDX_LIST,
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RW_STR_IDX_LIST,
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APPENDED_STR_LIST,
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};
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/*
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* @brief Figure out where is the next string argument.
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*
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* @param[out] pos Offset in byte of string argument from beginning of package.
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*
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* @param[in] ros_remaining How many read-only strings left
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* @param[in] ros_str_pos Pointer to the read-only string indexes
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*
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* @param[in] rws_remaining How many read-write strings left
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* @param[in] rws_str_pos Pointer to the read-write string indexes
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*
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* @param[in] s_remaining How many appended strings left
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* @param[in] str_pos Pointer to the appended string list
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*
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* @retval NO_STRING_LIST No string picked. Usually means there is
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* no more strings remaining in lists.
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* @retval RO_STR_IDX_LIST Position coming from read-only string list.
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* @retval RW_STR_IDX_LIST Position coming from read-write string list.
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* @retval APPENDED_STR_LIST Position coming from appended string list.
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*/
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static inline
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enum string_list get_next_string_arg(uint16_t *pos,
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uint8_t ros_remaining, uint8_t *ro_str_pos,
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uint8_t rws_remaining, uint8_t *rw_str_pos,
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uint8_t s_remaining, uint8_t *str_pos)
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{
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enum string_list which_list = NO_STRING_LIST;
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if (ros_remaining > 0) {
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*pos = ro_str_pos[0];
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which_list = RO_STR_IDX_LIST;
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}
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if (rws_remaining > 0) {
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if ((which_list == NO_STRING_LIST) || (rw_str_pos[0] < *pos)) {
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*pos = rw_str_pos[0];
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which_list = RW_STR_IDX_LIST;
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}
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}
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if (s_remaining > 0) {
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/*
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* The first uint8_t in the appended string list for
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* each string is its supposed position in
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* the argument list.
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*/
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if ((which_list == NO_STRING_LIST) || (str_pos[0] < *pos)) {
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*pos = str_pos[0];
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which_list = APPENDED_STR_LIST;
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}
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}
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if (which_list != NO_STRING_LIST) {
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/*
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* Note that the stored position value is in
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* multiple of uint32_t. So need to convert it
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* back to number of bytes.
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*/
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*pos *= sizeof(uint32_t);
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}
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return which_list;
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}
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/**
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* @brief Build the catalog message payload and send it out.
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*
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* This builds the catalog message payload to be sent through MIPI Sys-T
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* interface.
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*
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* For format strings without any string arguments, the argument list
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* is provided to the MIPI library as-is without any processing.
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* Otherwise, the strings replace the arguments in the argument list
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* by replacing the string arguments with the full strings.
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*
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* @param[in] severity Severity of log message.
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* @param[in] fmt Format string.
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* @param[in] pkg Pointer to log message package.
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* @param[in] pkg_sz Log message package size in bytes.
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* @param[in] arg Pointer to argument list inside log message package.
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* @param[in] arg_sz Argument list size in bytes inside log message package.
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* @param[in] s_nbr Number of appended strings in log message package.
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* @param[in] ros_nbr Number of read-only string indexes in log message package.
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* @param[in] rws_nbr Number of read-write string indexes in log message package.
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*
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* @retval 0 Success
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* @retval -ENOSPC Payload buffer size is too small.
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*/
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static int build_catalog_payload(uint32_t severity, const char *fmt,
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uint8_t *pkg, size_t pkg_sz,
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uint8_t *arg, size_t arg_sz,
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uint8_t s_nbr, uint8_t ros_nbr, uint8_t rws_nbr)
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{
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uint8_t *cur_str_arg_pos = NULL;
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uint8_t *payload = payload_buf;
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enum string_list which_str_list = NO_STRING_LIST;
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int ret = 0;
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/* End of argument list. */
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uint8_t * const arg_end = arg + arg_sz;
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/*
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* Start of read-only strings indexes, which is
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* after the argument list. Skip the first ro-string
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* index as it points to the format string.
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*/
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uint8_t *ro_str_pos = arg_end + 1;
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/*
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* Start of read-write strings indexes, which is
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* after the argument list, and read-only string
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* indexes.
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*/
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uint8_t *rw_str_pos = arg_end + ros_nbr;
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/* Start of appended strings in package */
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uint8_t *str_pos = arg_end + ros_nbr + rws_nbr;
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/* Number of strings remaining to be processed */
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uint8_t ros_remaining = ros_nbr - 1;
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uint8_t rws_remaining = rws_nbr;
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uint8_t s_remaining = s_nbr;
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k_spinlock_key_t key = k_spin_lock(&payload_lock);
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do {
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if (payload == payload_buf_end) {
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/*
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* No space left in payload buffer but there are
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* still arguments left. So bail out.
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*/
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ret = -ENOSPC;
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goto out;
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}
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if (cur_str_arg_pos == NULL) {
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uint16_t str_arg_pos;
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which_str_list = get_next_string_arg(&str_arg_pos,
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ros_remaining, ro_str_pos,
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rws_remaining, rw_str_pos,
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s_remaining, str_pos);
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if (which_str_list != NO_STRING_LIST) {
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cur_str_arg_pos = pkg + str_arg_pos;
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} else {
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/*
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* No more strings remaining from the lists.
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* Set the pointer to the end of argument list,
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* which it will never match the incrementally
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* moving arg, and also string selection will
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* no longer be carried out.
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*/
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cur_str_arg_pos = arg + arg_sz;
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}
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}
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if (arg == cur_str_arg_pos) {
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/*
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* The current argument is a string pointer.
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* So need to copy the string into the payload.
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*/
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size_t str_sz = 0;
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/* Extract the string pointer from package */
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uint8_t *s = *((uint8_t **)arg);
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/* Skip the string pointer for next argument */
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arg += sizeof(void *);
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/* Copy the string over. */
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while (s[0] != '\0') {
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payload[0] = s[0];
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payload++;
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str_sz++;
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s++;
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if (payload == payload_buf_end) {
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/*
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* No space left in payload buffer but there are
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* still characters to be copied. So bail out.
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*/
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ret = -ENOSPC;
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goto out;
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}
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}
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/* Need to terminate the string */
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payload[0] = '\0';
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payload++;
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if (which_str_list == RO_STR_IDX_LIST) {
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/* Move to next read-only string index */
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ro_str_pos++;
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ros_remaining--;
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} else if (which_str_list == RW_STR_IDX_LIST) {
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/* Move to next read-write string index */
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rw_str_pos++;
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rws_remaining--;
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} else if (which_str_list == APPENDED_STR_LIST) {
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/*
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* str_pos needs to skip the string index,
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* the string itself, and the NULL character.
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* So next time it points to another position
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* index.
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*/
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str_pos += str_sz + 2;
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s_remaining--;
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}
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cur_str_arg_pos = NULL;
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} else {
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/*
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* Copy until the next string argument
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* (or until the end of argument list).
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*/
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while (arg < cur_str_arg_pos) {
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payload[0] = arg[0];
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payload++;
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arg++;
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if (payload == payload_buf_end) {
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/*
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* No space left in payload buffer but there are
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* still characters to be copied. So bail out.
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*/
|
||||||
|
ret = -ENOSPC;
|
||||||
|
goto out;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} while (arg < arg_end);
|
||||||
|
|
||||||
|
MIPI_SYST_CATMSG_ARGS_COPY(&log_syst_handle, severity,
|
||||||
|
(uintptr_t)fmt,
|
||||||
|
payload_buf,
|
||||||
|
(size_t)(payload - payload_buf));
|
||||||
|
out:
|
||||||
|
k_spin_unlock(&payload_lock, key);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int mipi_catalog_formatter(cbprintf_cb out, void *ctx,
|
||||||
|
const char *fmt, va_list ap)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
struct log_msg2 *msg = ctx;
|
||||||
|
uint32_t severity = level_to_syst_severity(log_msg2_get_level(msg));
|
||||||
|
|
||||||
|
if (is_in_log_strings_section(fmt)) {
|
||||||
|
/*
|
||||||
|
* Note that only format strings that are in
|
||||||
|
* the log_strings_section are processed as
|
||||||
|
* catalog messages because only these strings
|
||||||
|
* are in the collateral XML file.
|
||||||
|
*/
|
||||||
|
|
||||||
|
size_t pkg_sz, arg_sz;
|
||||||
|
uint8_t s_nbr, ros_nbr, rws_nbr, total_str;
|
||||||
|
uint8_t *arg;
|
||||||
|
|
||||||
|
uint8_t *pkg = log_msg2_get_package(msg, &pkg_sz);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Need to skip the package header (of pointer size),
|
||||||
|
* and the pointer to format string to get to
|
||||||
|
* the argument list.
|
||||||
|
*/
|
||||||
|
arg = pkg + 2 * sizeof(void *);
|
||||||
|
arg_sz = pkg[0] * sizeof(uint32_t) - 2 * sizeof(void *);
|
||||||
|
|
||||||
|
/* Number of appended strings already in the package. */
|
||||||
|
s_nbr = pkg[1];
|
||||||
|
|
||||||
|
/* Number of string indexes, for both read-only and read-write strings. */
|
||||||
|
ros_nbr = pkg[2];
|
||||||
|
rws_nbr = pkg[3];
|
||||||
|
|
||||||
|
total_str = s_nbr + rws_nbr;
|
||||||
|
if (ros_nbr > 0) {
|
||||||
|
/*
|
||||||
|
* If there are read-only string indexes, the first
|
||||||
|
* is the format string. So we can ignore that as
|
||||||
|
* we are not copying it to the catalog message
|
||||||
|
* payload.
|
||||||
|
*/
|
||||||
|
total_str += ros_nbr - 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (total_str == 0) {
|
||||||
|
/*
|
||||||
|
* There are no string arguments so the argument list
|
||||||
|
* inside the package can be used as-is. The first
|
||||||
|
* read-only string pointer is the the format string so
|
||||||
|
* we can ignore that.
|
||||||
|
*/
|
||||||
|
MIPI_SYST_CATMSG_ARGS_COPY(&log_syst_handle, severity,
|
||||||
|
(uintptr_t)fmt,
|
||||||
|
arg,
|
||||||
|
arg_sz);
|
||||||
|
} else {
|
||||||
|
ret = build_catalog_payload(severity, fmt, pkg, pkg_sz,
|
||||||
|
arg, arg_sz,
|
||||||
|
s_nbr, ros_nbr, rws_nbr);
|
||||||
|
}
|
||||||
|
|
||||||
|
} else {
|
||||||
|
MIPI_SYST_VPRINTF(&log_syst_handle, severity, fmt, ap);
|
||||||
|
}
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
#endif /* !CONFIG_LOG_MIPI_SYST_USE_CATALOG */
|
||||||
|
|
||||||
void log_output_msg2_syst_process(const struct log_output *output,
|
void log_output_msg2_syst_process(const struct log_output *output,
|
||||||
struct log_msg2 *msg, uint32_t flag)
|
struct log_msg2 *msg, uint32_t flag)
|
||||||
|
|
@ -791,7 +1183,13 @@ void log_output_msg2_syst_process(const struct log_output *output,
|
||||||
uint8_t *data = log_msg2_get_package(msg, &len);
|
uint8_t *data = log_msg2_get_package(msg, &len);
|
||||||
|
|
||||||
if (len) {
|
if (len) {
|
||||||
(void)cbpprintf_external(NULL, mipi_formatter, msg, data);
|
(void)cbpprintf_external(NULL,
|
||||||
|
#ifdef CONFIG_LOG_MIPI_SYST_USE_CATALOG
|
||||||
|
mipi_catalog_formatter,
|
||||||
|
#else
|
||||||
|
mipi_vprintf_formatter,
|
||||||
|
#endif
|
||||||
|
msg, data);
|
||||||
}
|
}
|
||||||
|
|
||||||
data = log_msg2_get_data(msg, &hexdump_len);
|
data = log_msg2_get_data(msg, &hexdump_len);
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue