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-rwxr-xr-xbxgen.c79
1 files changed, 62 insertions, 17 deletions
diff --git a/bxgen.c b/bxgen.c
index 1514508..d69cc01 100755
--- a/bxgen.c
+++ b/bxgen.c
@@ -6,8 +6,8 @@ gcc \
-Wno-missing-field-initializers -Wno-missing-braces \
-Wall -Wextra -Werror -pedantic \
-O0 -fsanitize=undefined,address,leak -mshstk \
- -o $BIN.tmp $SRC && \
- ./$BIN.tmp $@ && rm $BIN.tmp
+ -o $BIN $SRC && \
+ ./$BIN $@
exit $?
#endif
@@ -40,6 +40,7 @@ exit $?
// - String table for names and arrays
// - Proper error handling
// - Proper prefixes for identifiers
+// - Correct serialization for endianness
// - Effective entity allocation
// - Implicit procedure prototypes
// - Implicit exit after ret from entry point
@@ -716,32 +717,44 @@ void unit_set_entry_point(Pool *pool, i64 unit, i64 entry_point_proc) {
#include <stdio.h> // TEMP
#include <stdlib.h> // TEMP
+// TODO
+
enum {
- MAX_SECTION_SIZE = 1024 * 1024 * 10,
- MAX_INPUT_SIZE = 1024 * 1024 * 100,
- MAX_RELOCATIONS = 1024 * 10,
- MAX_INPUT_SECTIONS = 1024 * 10,
+ MAX_SECTION_SIZE = 1024 * 1024 * 10,
+ MAX_SYMBOL_NAME_SIZE = 1024,
+ MAX_INPUT_SIZE = 1024 * 1024 * 100,
+ MAX_SYMBOLS = 1024 * 100,
+ MAX_RELOCATIONS = 1024 * 100,
+ MAX_INPUT_SECTIONS = 1024 * 10,
};
typedef struct {
- i64 memory_address;
- i64 file_offset;
+ i64 address_in_memory;
+ i64 offset_in_file;
i64 size;
u8 bytes[MAX_SECTION_SIZE];
} Section;
typedef struct {
i64 src_section;
- i64 src_file_offset;
+ i64 src_offset_in_file;
+ i64 src_size;
+ i64 name_size;
+ c8 name[MAX_SYMBOL_NAME_SIZE];
+} Symbol;
+
+typedef struct {
+ i64 src_section;
+ i64 src_offset_in_file;
i64 src_size;
i64 dst_section;
- i64 dst_memory_address;
+ i64 dst_address_in_memory;
} Relocation;
typedef struct {
- i64 object_index;
- i64 section_index;
- i64 file_offset;
+ i64 object;
+ i64 section;
+ i64 offset_in_file;
i64 size;
} Input_Section_Info;
@@ -750,6 +763,8 @@ typedef struct {
Section read_only;
Section read_write;
Section zero_init;
+ i64 symbols_size;
+ Symbol symbols[MAX_SYMBOLS];
i64 relocs_size;
Relocation relocs[MAX_RELOCATIONS];
i64 input_raw_size;
@@ -1405,6 +1420,38 @@ void unit_write(Pool *pool, i64 unit, u16 target, i64 io_out, void *io_user_data
// Relocarions with addends
case 4: {
+ BX_ASSERT(entsize == 24);
+
+ i64 prev_offset = current_offset;
+ i64 prev_byte_count = byte_count;
+ io_seek(f, begin_offset + offset, IO_SEEK_BEGIN, io_user_data);
+ current_offset = begin_offset + offset;
+
+ printf("\n");
+
+ for (byte_count = size; byte_count > 0;) {
+ u64 rela_offset;
+ u64 rela_info;
+ i64 rela_addent;
+
+ READ(rela_offset); BX_ASSERT(n != 0);
+ READ(rela_info); BX_ASSERT(n != 0);
+ READ(rela_addent); BX_ASSERT(n != 0);
+
+ u32 rela_sym = (u32) (rela_info >> 32);
+ u32 rela_type = (u32) (rela_info & 0xffffffff);
+
+ printf(" ");
+
+ printf("%08llx sym %-2d type %-2d add %-2lld", rela_offset, rela_sym, rela_type, rela_addent);
+ printf("\n");
+ }
+
+ printf("\n");
+
+ io_seek(f, prev_offset, IO_SEEK_BEGIN, io_user_data);
+ current_offset = prev_offset;
+ byte_count = prev_byte_count;
} break;
// ================================================================
@@ -1673,10 +1720,8 @@ int main(int argc, char **argv) {
(void) argc;
(void) argv;
- printf("node - %d bytes\n", (i32) sizeof(Node));
- printf("proc - %d bytes\n", (i32) sizeof(Proc));
- printf("unit - %d bytes\n", (i32) sizeof(Unit));
- printf("entity - %d bytes\n\n", (i32) sizeof(Entity));
+ printf("entity - %d bytes\n", (i32) sizeof(Entity));
+ printf("binary output buffer - %d MB\n\n", (i32) sizeof(Binary_Output) / (1024 * 1024));
i64 main = p_new("main");
i64 n0 = n_i64(42);