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Binary: improve performance

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李通洲
2024-08-27 16:19:05 +08:00
committed by 李通洲
parent 67d0dfcef0
commit df729938c5
8 changed files with 39 additions and 43 deletions
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src/util/binary_apple.c
+10 -9
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@@ -20,7 +20,7 @@ static inline bool readData(FILE *objFile, void *buf, size_t size, off_t offset)
return fread(buf, 1, size, objFile) == size;
}
static bool handleMachSection(FILE *objFile, const char *name, off_t offset, size_t size, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata)
static bool handleMachSection(FILE *objFile, const char *name, off_t offset, size_t size, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata, uint32_t minLength)
{
if (!ffStrEquals(name, "__cstring")) return true;
@@ -33,6 +33,7 @@ static bool handleMachSection(FILE *objFile, const char *name, off_t offset, siz
const char* p = (const char*) data + off;
if (*p == '\0') continue;
uint32_t len = (uint32_t) strlen(p);
if (len < minLength) continue;
if (*p >= ' ' && *p <= '~') // Ignore control characters
{
if (!cb(p, len, userdata)) return false;
@@ -42,7 +43,7 @@ static bool handleMachSection(FILE *objFile, const char *name, off_t offset, siz
return true;
}
static const char* dumpMachHeader(FILE *objFile, off_t offset, bool is_64, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata)
static const char* dumpMachHeader(FILE *objFile, off_t offset, bool is_64, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata, uint32_t minLength)
{
uint32_t ncmds;
off_t loadCommandsOffset = offset;
@@ -87,7 +88,7 @@ static const char* dumpMachHeader(FILE *objFile, off_t offset, bool is_64, bool
if (!readData(objFile, &section, sizeof(section), (off_t) ((size_t) commandOffset + sizeof(segment) + j * sizeof(section))))
continue;
if (!handleMachSection(objFile, section.sectname, section.offset, section.size, cb, userdata))
if (!handleMachSection(objFile, section.sectname, section.offset, section.size, cb, userdata, minLength))
return NULL;
}
}
@@ -105,7 +106,7 @@ static const char* dumpMachHeader(FILE *objFile, off_t offset, bool is_64, bool
if (!readData(objFile, &section, sizeof(section), (off_t) ((size_t) commandOffset + sizeof(segment) + j * sizeof(section))))
continue;
if (!handleMachSection(objFile, section.sectname, section.offset, section.size, cb, userdata))
if (!handleMachSection(objFile, section.sectname, section.offset, section.size, cb, userdata, minLength))
return NULL;
}
}
@@ -116,7 +117,7 @@ static const char* dumpMachHeader(FILE *objFile, off_t offset, bool is_64, bool
return NULL;
}
static const char* dumpFatHeader(FILE *objFile, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata)
static const char* dumpFatHeader(FILE *objFile, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata, uint32_t minLength)
{
struct fat_header header;
if (!readData(objFile, &header, sizeof(header), 0))
@@ -157,14 +158,14 @@ static const char* dumpFatHeader(FILE *objFile, bool (*cb)(const char *str, uint
if (magic == MH_MAGIC_64 || magic == MH_MAGIC)
{
dumpMachHeader(objFile, machHeaderOffset, magic == MH_MAGIC_64, cb, userdata);
dumpMachHeader(objFile, machHeaderOffset, magic == MH_MAGIC_64, cb, userdata, minLength);
return NULL;
}
}
return "Unsupported fat header";
}
const char *ffBinaryExtractStrings(const char *machoFile, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata)
const char *ffBinaryExtractStrings(const char *machoFile, bool (*cb)(const char *str, uint32_t len, void *userdata), void *userdata, uint32_t minLength)
{
FF_AUTO_CLOSE_FILE FILE *objFile = fopen(machoFile, "rb");
if (objFile == NULL)
@@ -180,7 +181,7 @@ const char *ffBinaryExtractStrings(const char *machoFile, bool (*cb)(const char
return "Unsupported format or big endian mach-o file";
if (magic == FAT_MAGIC || magic == FAT_MAGIC_64 || magic == FAT_CIGAM || magic == FAT_CIGAM_64)
return dumpFatHeader(objFile, cb, userdata);
return dumpFatHeader(objFile, cb, userdata, minLength);
else
return dumpMachHeader(objFile, 0, magic == MH_MAGIC_64, cb, userdata);
return dumpMachHeader(objFile, 0, magic == MH_MAGIC_64, cb, userdata, minLength);
}