DeforaNetworks/deepstate
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Made variadic argument lists work in 32 bit x86.

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This commit is contained in:
Peter Goodman 2017-12-13 23:53:48 -05:00
parent 303da80e78
commit 622afcdb98
4 changed files with 44 additions and 29 deletions
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2
CMakeLists.txt
View File

@ -50,7 +50,7 @@ add_library(${PROJECT_NAME}32 STATIC
src/lib/Stream.c
)
target_compile_options(${PROJECT_NAME}32 PUBLIC -m32)
target_compile_options(${PROJECT_NAME}32 PUBLIC -m32 -g3)
target_include_directories(${PROJECT_NAME}
PUBLIC SYSTEM "${CMAKE_SOURCE_DIR}/src/include"

8
src/include/deepstate/Log.h
View File

@ -25,6 +25,10 @@ DEEPSTATE_BEGIN_EXTERN_C
struct DeepState_Stream;
struct DeepState_VarArgs {
va_list args;
};
enum DeepState_LogLevel {
DeepState_LogDebug = 0,
DeepState_LogInfo = 1,
@ -40,11 +44,11 @@ extern void DeepState_Log(enum DeepState_LogLevel level, const char *str);
/* Log some formatted output. */
extern void DeepState_LogFormat(enum DeepState_LogLevel level,
const char *format, ...);
const char *format, ...);
/* Log some formatted output. */
extern void DeepState_LogVFormat(enum DeepState_LogLevel level,
const char *format, va_list args);
const char *format, va_list args);
DEEPSTATE_END_EXTERN_C

5
src/lib/Log.c
View File

@ -29,6 +29,7 @@
#include <string.h>
#include "deepstate/DeepState.h"
#include "deepstate/Log.h"
#undef printf
#undef vprintf
@ -84,8 +85,10 @@ void DeepState_Log(enum DeepState_LogLevel level, const char *str) {
DEEPSTATE_NOINLINE
void DeepState_LogVFormat(enum DeepState_LogLevel level,
const char *format, va_list args) {
struct DeepState_VarArgs va;
va_copy(va.args, args);
DeepState_LogStream(level);
DeepState_StreamVFormat(level, format, args);
DeepState_StreamVFormat(level, format, va.args);
DeepState_LogStream(level);
}

58
src/lib/Stream.c
View File

@ -23,6 +23,7 @@
#include <inttypes.h>
#include "deepstate/DeepState.h"
#include "deepstate/Log.h"
DEEPSTATE_BEGIN_EXTERN_C
@ -295,8 +296,10 @@ DEEPSTATE_INITIALIZER(DeepState_NumLsFor64BitFormat) {
/* Approximately do string format parsing and convert it into calls into our
* streaming API. */
DEEPSTATE_NOINLINE
static int DeepState_StreamFormatValue(enum DeepState_LogLevel level,
const char *format, va_list args) {
const char *format,
struct DeepState_VarArgs *va) {
struct DeepState_Stream *stream = &(DeepState_Streams[level]);
char format_buf[32] = {'\0'};
int i = 0;
@ -313,6 +316,7 @@ static int DeepState_StreamFormatValue(enum DeepState_LogLevel level,
#define READ_FORMAT_CHAR \
ch = format[i]; \
format_buf[i - k] = ch; \
format_buf[i - k + 1] = '\0'; \
i++
READ_FORMAT_CHAR; /* Read the '%' */
@ -445,7 +449,7 @@ get_length_char:
/* Print a character. */
case 'c':
stream->value.as_uint64 = (uint64_t) (char) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (char) va_arg(va->args, int);
extract = 'c';
goto common_stream_int;
@ -453,16 +457,16 @@ get_length_char:
case 'd':
case 'i':
if (1 == length) {
stream->value.as_uint64 = (uint64_t) (int8_t) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (int8_t) va_arg(va->args, int);
extract = 'b';
} else if (2 == length) {
stream->value.as_uint64 = (uint64_t) (int16_t) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (int16_t) va_arg(va->args, int);
extract = 'h';
} else if (4 == length) {
stream->value.as_uint64 = (uint64_t) (int32_t) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (int32_t) va_arg(va->args, int);
extract = 'i';
} else if (8 == length) {
stream->value.as_uint64 = (uint64_t) va_arg(args, int64_t);
stream->value.as_uint64 = (uint64_t) va_arg(va->args, int64_t);
extract = 'q';
} else {
DeepState_Abandon("Unsupported integer length.");
@ -472,7 +476,7 @@ get_length_char:
/* Pointer. */
case 'p':
length = (int) sizeof(void *);
format_buf[i - 1] = 'x';
format_buf[i - k - 1] = 'x';
/* Note: Falls through. */
/* Unsigned, hex, octal */
@ -481,27 +485,26 @@ get_length_char:
case 'x':
case 'X':
if (1 == length) {
stream->value.as_uint64 = (uint64_t) (uint8_t) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (uint8_t) va_arg(va->args, int);
extract = 'B';
} else if (2 == length) {
stream->value.as_uint64 = (uint64_t) (uint16_t) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (uint16_t) va_arg(va->args, int);
extract = 'H';
} else if (4 == length) {
stream->value.as_uint64 = (uint64_t) (uint32_t) va_arg(args, int);
stream->value.as_uint64 = (uint64_t) (uint32_t) va_arg(va->args, int);
extract = 'I';
} else if (8 == length) {
stream->value.as_uint64 = (uint64_t) va_arg(args, uint64_t);
stream->value.as_uint64 = (uint64_t) va_arg(va->args, uint64_t);
extract = 'Q';
} else {
DeepState_Abandon("Unsupported integer length.");
}
common_stream_int:
format_buf[i] = '\0';
DeepState_StreamUnpack(stream, extract);
_DeepState_StreamInt(level, format_buf, stream->unpack,
&(stream->value.as_uint64));
break;
goto done;
/* Floating point, scientific notation, etc. */
case 'f':
@ -513,28 +516,29 @@ get_length_char:
case 'a':
case 'A':
if (long_double) {
stream->value.as_fp64 = (double) va_arg(args, long double);
stream->value.as_fp64 = (double) va_arg(va->args, long double);
} else {
stream->value.as_fp64 = va_arg(args, double);
stream->value.as_fp64 = va_arg(va->args, double);
}
DeepState_StreamUnpack(stream, 'd');
format_buf[i] = '\0';
_DeepState_StreamFloat(level, format_buf, stream->unpack,
&(stream->value.as_fp64));
break;
goto done;
case 's': {
const char *str = va_arg(args, const char *);
format_buf[i] = '\0';
const char *str = va_arg(va->args, const char *);
_DeepState_StreamString(level, format_buf, str);
break;
goto done;
}
default:
DeepState_Abandon("Unsupported format specifier.");
return 0;
}
done:
if (!i) {
DeepState_Abandon("Made no progress.");
}
return i;
}
@ -546,8 +550,11 @@ static char DeepState_Format[DeepState_StreamSize + 1];
/* Stream some formatted input. This converts a `printf`-style format string
* into a */
void DeepState_StreamVFormat(enum DeepState_LogLevel level, const char *format_,
va_list args) {
void DeepState_StreamVFormat(enum DeepState_LogLevel level,
const char *format_, va_list args) {
struct DeepState_VarArgs va;
va_copy(va.args, args);
char *begin = NULL;
char *end = NULL;
char *format = &(DeepState_Format[0]);
@ -590,7 +597,7 @@ void DeepState_StreamVFormat(enum DeepState_LogLevel level, const char *format_,
}
begin = NULL;
end = NULL;
i += DeepState_StreamFormatValue(level, &(format[i]), args);
i += DeepState_StreamFormatValue(level, &(format[i]), &va);
}
} else {
end = &(format[i]);
@ -604,7 +611,8 @@ void DeepState_StreamVFormat(enum DeepState_LogLevel level, const char *format_,
}
/* Stream some formatted input */
void DeepState_StreamFormat(enum DeepState_LogLevel level, const char *format, ...) {
void DeepState_StreamFormat(enum DeepState_LogLevel level,
const char *format, ...) {
va_list args;
va_start(args, format);
DeepState_StreamVFormat(level, format, args);