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No more anonymous structs (not standard C++) (#1305)

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This is one step to restoring `-pedantic` builds
This commit is contained in:
Sylvie
2024-02-19 02:12:20 -05:00
committed by GitHub
parent a02687a83e
commit 9cdd0b8a02
8 changed files with 65 additions and 65 deletions
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8
include/asm/symbol.hpp
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@@ -39,9 +39,9 @@ struct Symbol {
int32_t (*numCallback)(void); int32_t (*numCallback)(void);
// For SYM_MACRO and SYM_EQUS; TODO: have separate fields // For SYM_MACRO and SYM_EQUS; TODO: have separate fields
struct { struct {
size_t macroSize; size_t size;
char *macro; char *value;
}; } macro;
// For SYM_EQUS // For SYM_EQUS
char const *(*strCallback)(void); char const *(*strCallback)(void);
}; };
@@ -97,7 +97,7 @@ static inline char const *sym_GetStringValue(struct Symbol const *sym)
{ {
if (sym->hasCallback) if (sym->hasCallback)
return sym->strCallback(); return sym->strCallback();
return sym->macro; return sym->macro.value;
} }
void sym_ForEach(void (*func)(struct Symbol *, void *), void *arg); void sym_ForEach(void (*func)(struct Symbol *, void *), void *arg);

4
include/link/main.hpp
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@@ -37,9 +37,9 @@ struct FileStackNode {
union { union {
char *name; // NODE_FILE, NODE_MACRO char *name; // NODE_FILE, NODE_MACRO
struct { // NODE_REPT struct { // NODE_REPT
uint32_t reptDepth; uint32_t depth;
uint32_t *iters; uint32_t *iters;
}; } rept;
}; };
}; };

2
include/platform.hpp
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@@ -56,7 +56,7 @@
#define restrict #define restrict
// C++ doesn't support designated array initializers, but they're a gcc extension // C++ doesn't support designated array initializers, but they're a gcc extension
#ifdef __GNUC__ #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
# define AT(index) [index] = # define AT(index) [index] =
#else #else
# define AT(index) # define AT(index)

2
src/asm/fstack.cpp
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@@ -455,7 +455,7 @@ void fstk_RunMacro(char const *macroName, struct MacroArgs *args)
memcpy(dest, macro->name, macroNameLen + 1); memcpy(dest, macro->name, macroNameLen + 1);
newContext((struct FileStackNode *)fileInfo); newContext((struct FileStackNode *)fileInfo);
contextStack->lexerState = lexer_OpenFileView("MACRO", macro->macro, macro->macroSize, contextStack->lexerState = lexer_OpenFileView("MACRO", macro->macro.value, macro->macro.size,
macro->fileLine); macro->fileLine);
if (!contextStack->lexerState) if (!contextStack->lexerState)
fatalerror("Failed to set up lexer for macro invocation\n"); fatalerror("Failed to set up lexer for macro invocation\n");

80
src/asm/lexer.cpp
View File

@@ -319,13 +319,13 @@ struct LexerState {
size_t size; size_t size;
size_t offset; size_t offset;
bool isReferenced; // If a macro in this file requires not unmapping it bool isReferenced; // If a macro in this file requires not unmapping it
}; } mmap;
struct { // Otherwise struct { // Otherwise
int fd; int fd;
size_t index; // Read index into the buffer size_t index; // Read index into the buffer
char buf[LEXER_BUF_SIZE]; // Circular buffer char buf[LEXER_BUF_SIZE]; // Circular buffer
size_t nbChars; // Number of "fresh" chars in the buffer size_t nbChars; // Number of "fresh" chars in the buffer
}; } cbuf;
}; };
// Common state // Common state
@@ -454,8 +454,8 @@ struct LexerState *lexer_OpenFile(char const *path)
} }
state->path = path; state->path = path;
state->isFile = true; state->isFile = true;
state->fd = isStdin ? STDIN_FILENO : open(path, O_RDONLY); state->cbuf.fd = isStdin ? STDIN_FILENO : open(path, O_RDONLY);
if (state->fd < 0) { if (state->cbuf.fd < 0) {
error("Failed to open file \"%s\": %s\n", path, strerror(errno)); error("Failed to open file \"%s\": %s\n", path, strerror(errno));
free(state); free(state);
return NULL; return NULL;
@@ -464,25 +464,25 @@ struct LexerState *lexer_OpenFile(char const *path)
if (!isStdin && fileInfo.st_size > 0) { if (!isStdin && fileInfo.st_size > 0) {
// Try using `mmap` for better performance // Try using `mmap` for better performance
// Important: do NOT assign to `state->ptr` directly, to avoid a cast that may // Important: do NOT assign to `state->mmap.ptr` directly, to avoid a cast that may
// alter an eventual `MAP_FAILED` value. It would also invalidate `state->fd`, // alter an eventual `MAP_FAILED` value. It would also invalidate `state->cbuf.fd`,
// being on the other side of the union. // being on the other side of the union.
void *mappingAddr; void *mappingAddr;
mapFile(mappingAddr, state->fd, state->path, fileInfo.st_size); mapFile(mappingAddr, state->cbuf.fd, state->path, fileInfo.st_size);
if (mappingAddr == MAP_FAILED) { if (mappingAddr == MAP_FAILED) {
// If mmap()ing failed, try again using another method (below) // If mmap()ing failed, try again using another method (below)
state->isMmapped = false; state->isMmapped = false;
} else { } else {
// IMPORTANT: the `union` mandates this is accessed before other members! // IMPORTANT: the `union` mandates this is accessed before other members!
close(state->fd); close(state->cbuf.fd);
state->isMmapped = true; state->isMmapped = true;
state->isReferenced = false; // By default, a state isn't referenced state->mmap.isReferenced = false; // By default, a state isn't referenced
state->ptr = (char *)mappingAddr; state->mmap.ptr = (char *)mappingAddr;
assert(fileInfo.st_size >= 0); assert(fileInfo.st_size >= 0);
state->size = (size_t)fileInfo.st_size; state->mmap.size = (size_t)fileInfo.st_size;
state->offset = 0; state->mmap.offset = 0;
if (verbose) if (verbose)
printf("File %s successfully mmap()ped\n", path); printf("File %s successfully mmap()ped\n", path);
@@ -499,8 +499,8 @@ struct LexerState *lexer_OpenFile(char const *path)
printf("File %s opened as regular, errno reports \"%s\"\n", printf("File %s opened as regular, errno reports \"%s\"\n",
path, strerror(errno)); path, strerror(errno));
} }
state->index = 0; state->cbuf.index = 0;
state->nbChars = 0; state->cbuf.nbChars = 0;
} }
initState(state); initState(state);
@@ -520,9 +520,9 @@ struct LexerState *lexer_OpenFileView(char const *path, char *buf, size_t size,
state->path = path; // Used to report read errors in `peekInternal` state->path = path; // Used to report read errors in `peekInternal`
state->isFile = false; state->isFile = false;
state->isMmapped = true; // It's not *really* mmap()ed, but it behaves the same state->isMmapped = true; // It's not *really* mmap()ed, but it behaves the same
state->ptr = buf; state->mmap.ptr = buf;
state->size = size; state->mmap.size = size;
state->offset = 0; state->mmap.offset = 0;
initState(state); initState(state);
state->lineNo = lineNo; // Will be incremented at first line start state->lineNo = lineNo; // Will be incremented at first line start
@@ -531,7 +531,7 @@ struct LexerState *lexer_OpenFileView(char const *path, char *buf, size_t size,
void lexer_RestartRept(uint32_t lineNo) void lexer_RestartRept(uint32_t lineNo)
{ {
lexerState->offset = 0; lexerState->mmap.offset = 0;
initState(lexerState); initState(lexerState);
lexerState->lineNo = lineNo; lexerState->lineNo = lineNo;
} }
@@ -552,9 +552,9 @@ void lexer_DeleteState(struct LexerState *state)
assert(state != lexerStateEOL); assert(state != lexerStateEOL);
if (!state->isMmapped) if (!state->isMmapped)
close(state->fd); close(state->cbuf.fd);
else if (state->isFile && !state->isReferenced) else if (state->isFile && !state->mmap.isReferenced)
munmap(state->ptr, state->size); munmap(state->mmap.ptr, state->mmap.size);
free(state); free(state);
} }
@@ -798,7 +798,7 @@ static size_t readInternal(size_t bufIndex, size_t nbChars)
{ {
// This buffer overflow made me lose WEEKS of my life. Never again. // This buffer overflow made me lose WEEKS of my life. Never again.
assert(bufIndex + nbChars <= LEXER_BUF_SIZE); assert(bufIndex + nbChars <= LEXER_BUF_SIZE);
ssize_t nbReadChars = read(lexerState->fd, &lexerState->buf[bufIndex], nbChars); ssize_t nbReadChars = read(lexerState->cbuf.fd, &lexerState->cbuf.buf[bufIndex], nbChars);
if (nbReadChars == -1) if (nbReadChars == -1)
fatalerror("Error while reading \"%s\": %s\n", lexerState->path, strerror(errno)); fatalerror("Error while reading \"%s\": %s\n", lexerState->path, strerror(errno));
@@ -824,25 +824,25 @@ static int peekInternal(uint8_t distance)
PRIu8 " >= %u)\n", distance, LEXER_BUF_SIZE); PRIu8 " >= %u)\n", distance, LEXER_BUF_SIZE);
if (lexerState->isMmapped) { if (lexerState->isMmapped) {
if (lexerState->offset + distance >= lexerState->size) if (lexerState->mmap.offset + distance >= lexerState->mmap.size)
return EOF; return EOF;
return (unsigned char)lexerState->ptr[lexerState->offset + distance]; return (unsigned char)lexerState->mmap.ptr[lexerState->mmap.offset + distance];
} }
if (lexerState->nbChars <= distance) { if (lexerState->cbuf.nbChars <= distance) {
// Buffer isn't full enough, read some chars in // Buffer isn't full enough, read some chars in
size_t target = LEXER_BUF_SIZE - lexerState->nbChars; // Aim: making the buf full size_t target = LEXER_BUF_SIZE - lexerState->cbuf.nbChars; // Aim: making the buf full
// Compute the index we'll start writing to // Compute the index we'll start writing to
size_t writeIndex = (lexerState->index + lexerState->nbChars) % LEXER_BUF_SIZE; size_t writeIndex = (lexerState->cbuf.index + lexerState->cbuf.nbChars) % LEXER_BUF_SIZE;
// If the range to fill passes over the buffer wrapping point, we need two reads // If the range to fill passes over the buffer wrapping point, we need two reads
if (writeIndex + target > LEXER_BUF_SIZE) { if (writeIndex + target > LEXER_BUF_SIZE) {
size_t nbExpectedChars = LEXER_BUF_SIZE - writeIndex; size_t nbExpectedChars = LEXER_BUF_SIZE - writeIndex;
size_t nbReadChars = readInternal(writeIndex, nbExpectedChars); size_t nbReadChars = readInternal(writeIndex, nbExpectedChars);
lexerState->nbChars += nbReadChars; lexerState->cbuf.nbChars += nbReadChars;
writeIndex += nbReadChars; writeIndex += nbReadChars;
if (writeIndex == LEXER_BUF_SIZE) if (writeIndex == LEXER_BUF_SIZE)
@@ -854,14 +854,14 @@ static int peekInternal(uint8_t distance)
target = 0; target = 0;
} }
if (target != 0) if (target != 0)
lexerState->nbChars += readInternal(writeIndex, target); lexerState->cbuf.nbChars += readInternal(writeIndex, target);
// If there aren't enough chars even after refilling, give up // If there aren't enough chars even after refilling, give up
if (lexerState->nbChars <= distance) if (lexerState->cbuf.nbChars <= distance)
return EOF; return EOF;
} }
return (unsigned char)lexerState->buf[(lexerState->index + distance) % LEXER_BUF_SIZE]; return (unsigned char)lexerState->cbuf.buf[(lexerState->cbuf.index + distance) % LEXER_BUF_SIZE];
} }
// forward declarations for peek // forward declarations for peek
@@ -946,14 +946,14 @@ restart:
// Advance within the file contents // Advance within the file contents
lexerState->colNo++; lexerState->colNo++;
if (lexerState->isMmapped) { if (lexerState->isMmapped) {
lexerState->offset++; lexerState->mmap.offset++;
} else { } else {
assert(lexerState->index < LEXER_BUF_SIZE); assert(lexerState->cbuf.index < LEXER_BUF_SIZE);
lexerState->index++; lexerState->cbuf.index++;
if (lexerState->index == LEXER_BUF_SIZE) if (lexerState->cbuf.index == LEXER_BUF_SIZE)
lexerState->index = 0; // Wrap around if necessary lexerState->cbuf.index = 0; // Wrap around if necessary
assert(lexerState->nbChars > 0); assert(lexerState->cbuf.nbChars > 0);
lexerState->nbChars--; lexerState->cbuf.nbChars--;
} }
} }
} }
@@ -2458,7 +2458,7 @@ static void startCapture(struct CaptureBody *capture)
capture->lineNo = lexer_GetLineNo(); capture->lineNo = lexer_GetLineNo();
if (lexerState->isMmapped && !lexerState->expansions) { if (lexerState->isMmapped && !lexerState->expansions) {
capture->body = &lexerState->ptr[lexerState->offset]; capture->body = &lexerState->mmap.ptr[lexerState->mmap.offset];
} else { } else {
lexerState->captureCapacity = 128; // The initial size will be twice that lexerState->captureCapacity = 128; // The initial size will be twice that
assert(lexerState->captureBuf == NULL); assert(lexerState->captureBuf == NULL);
@@ -2545,7 +2545,7 @@ bool lexer_CaptureMacroBody(struct CaptureBody *capture)
// If the file is `mmap`ed, we need not to unmap it to keep access to the macro // If the file is `mmap`ed, we need not to unmap it to keep access to the macro
if (lexerState->isMmapped) if (lexerState->isMmapped)
lexerState->isReferenced = true; lexerState->mmap.isReferenced = true;
int c = EOF; int c = EOF;

16
src/asm/symbol.cpp
View File

@@ -164,8 +164,8 @@ static void assignStringSymbol(struct Symbol *sym, char const *value)
fatalerror("No memory for string equate: %s\n", strerror(errno)); fatalerror("No memory for string equate: %s\n", strerror(errno));
sym->type = SYM_EQUS; sym->type = SYM_EQUS;
sym->macro = string; sym->macro.value = string;
sym->macroSize = strlen(string); sym->macro.size = strlen(string);
} }
struct Symbol *sym_FindExactSymbol(char const *symName) struct Symbol *sym_FindExactSymbol(char const *symName)
@@ -233,8 +233,8 @@ void sym_Purge(char const *symName)
if (sym->name == labelScope) if (sym->name == labelScope)
sym_SetCurrentSymbolScope(NULL); sym_SetCurrentSymbolScope(NULL);
// FIXME: this leaks sym->macro for SYM_EQUS and SYM_MACRO, but this can't // FIXME: this leaks sym->macro.value for SYM_EQUS and SYM_MACRO, but this can't
// free(sym->macro) because the expansion may be purging itself. // free(sym->macro.value) because the expansion may be purging itself.
hash_RemoveElement(symbols, sym->name); hash_RemoveElement(symbols, sym->name);
// TODO: ideally, also unref the file stack nodes // TODO: ideally, also unref the file stack nodes
free(sym); free(sym);
@@ -401,8 +401,8 @@ struct Symbol *sym_RedefString(char const *symName, char const *value)
} }
updateSymbolFilename(sym); updateSymbolFilename(sym);
// FIXME: this leaks the previous sym->macro value, but this can't // FIXME: this leaks the previous sym->macro.value value, but this can't
// free(sym->macro) because the expansion may be redefining itself. // free(sym->macro.value) because the expansion may be redefining itself.
assignStringSymbol(sym, value); assignStringSymbol(sym, value);
return sym; return sym;
@@ -574,8 +574,8 @@ struct Symbol *sym_AddMacro(char const *symName, int32_t defLineNo, char *body,
return NULL; return NULL;
sym->type = SYM_MACRO; sym->type = SYM_MACRO;
sym->macroSize = size; sym->macro.size = size;
sym->macro = body; sym->macro.value = body;
setSymbolFilename(sym); // TODO: is this really necessary? setSymbolFilename(sym); // TODO: is this really necessary?
// The symbol is created at the line after the `endm`, // The symbol is created at the line after the `endm`,
// override this with the actual definition line // override this with the actual definition line

4
src/link/main.cpp
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@@ -61,8 +61,8 @@ char const *dumpFileStack(struct FileStackNode const *node)
lastName = node->name; lastName = node->name;
fprintf(stderr, "(%" PRIu32 ") -> %s", node->lineNo, lastName); fprintf(stderr, "(%" PRIu32 ") -> %s", node->lineNo, lastName);
if (node->type == NODE_REPT) { if (node->type == NODE_REPT) {
for (uint32_t i = 0; i < node->reptDepth; i++) for (uint32_t i = 0; i < node->rept.depth; i++)
fprintf(stderr, "::REPT~%" PRIu32, node->iters[i]); fprintf(stderr, "::REPT~%" PRIu32, node->rept.iters[i]);
} }
} else { } else {
assert(node->type != NODE_REPT); assert(node->type != NODE_REPT);

14
src/link/object.cpp
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@@ -180,15 +180,15 @@ static void readFileStackNode(FILE *file, struct FileStackNode fileNodes[], uint
break; break;
case NODE_REPT: case NODE_REPT:
tryReadlong(fileNodes[i].reptDepth, file, tryReadlong(fileNodes[i].rept.depth, file,
"%s: Cannot read node #%" PRIu32 "'s rept depth: %s", fileName, i); "%s: Cannot read node #%" PRIu32 "'s rept depth: %s", fileName, i);
fileNodes[i].iters = fileNodes[i].rept.iters =
(uint32_t *)malloc(sizeof(*fileNodes[i].iters) * fileNodes[i].reptDepth); (uint32_t *)malloc(sizeof(*fileNodes[i].rept.iters) * fileNodes[i].rept.depth);
if (!fileNodes[i].iters) if (!fileNodes[i].rept.iters)
fatal(NULL, 0, "%s: Failed to alloc node #%" PRIu32 "'s iters: %s", fatal(NULL, 0, "%s: Failed to alloc node #%" PRIu32 "'s iters: %s",
fileName, i, strerror(errno)); fileName, i, strerror(errno));
for (uint32_t k = 0; k < fileNodes[i].reptDepth; k++) for (uint32_t k = 0; k < fileNodes[i].rept.depth; k++)
tryReadlong(fileNodes[i].iters[k], file, tryReadlong(fileNodes[i].rept.iters[k], file,
"%s: Cannot read node #%" PRIu32 "'s iter #%" PRIu32 ": %s", "%s: Cannot read node #%" PRIu32 "'s iter #%" PRIu32 ": %s",
fileName, i, k); fileName, i, k);
if (!fileNodes[i].parent) if (!fileNodes[i].parent)
@@ -659,7 +659,7 @@ void obj_Setup(unsigned int nbFiles)
static void freeNode(struct FileStackNode *node) static void freeNode(struct FileStackNode *node)
{ {
if (node->type == NODE_REPT) if (node->type == NODE_REPT)
free(node->iters); free(node->rept.iters);
else else
free(node->name); free(node->name);
} }