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Let Windows look in the executable path when opening files if they can't be found in the current directory. #40

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Let Windows look in the executable path when opening files if they can't be found in the current directory. #40

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1b666e5
Changes for Windows, so opening files falls back on the executable pa…
richtw1 Jun 17, 2022
48af189
Revert "Changes for Windows, so opening files falls back on the execu…
richtw1 Jun 17, 2022
262861a
Windows builds now also look in the executable path when opening file…
richtw1 Jun 17, 2022
30cfd96
Updated Windows debug build script
richtw1 Jun 17, 2022
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4 changes: 2 additions & 2 deletions build_win_dbg.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,8 @@

# NOTE: -gdwarf-2 needed for my version of wine to recognize the symbols.

x86_64-w64-mingw32-gcc -D__USE_MINGW_ANSI_STDIO=0 \
-Wall -W -Werror \
x86_64-w64-mingw32-gcc -D__USE_MINGW_ANSI_STDIO=0 -DPLATFORM_WINDOWS \
-Wall -W -Werror -Wl,--default-image-base-low \
-Wno-unknown-warning-option -Wno-address-of-packed-member \
-g -gdwarf-2 -o beebjit.exe \
main.c config.c bbc.c defs_6502.c state.c video.c via.c \
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4 changes: 2 additions & 2 deletions build_win_opt.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,8 @@

# NOTE: -gdwarf-2 needed for my version of wine to recognize the symbols.

x86_64-w64-mingw32-gcc -D__USE_MINGW_ANSI_STDIO=0 \
-Wall -W -Werror \
x86_64-w64-mingw32-gcc -D__USE_MINGW_ANSI_STDIO=0 -DPLATFORM_WINDOWS \
-Wall -W -Werror -Wl,--default-image-base-low \
-Wno-unknown-warning-option -Wno-address-of-packed-member \
-O3 -DNDEBUG -flto -o beebjit.exe \
main.c config.c bbc.c defs_6502.c state.c video.c via.c \
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29 changes: 28 additions & 1 deletion util.c
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,9 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef PLATFORM_WINDOWS
#include "windows.h"
#endif

void*
util_malloc(size_t size) {
Expand Down Expand Up @@ -279,9 +282,12 @@ util_file_name_split(char** p_file_name_base,
const char* p_sep = NULL;
const char* p_str = p_full_file_name;

/* TODO: respect Windows separator? */
while (*p_str != '\0') {
#ifdef PLATFORM_WINDOWS
if (*p_str == '/' || *p_str == '\\') {
#else
if (*p_str == '/') {
#endif
p_sep = p_str;
}
p_str++;
Expand Down Expand Up @@ -309,7 +315,11 @@ util_file_name_join(const char* p_file_name_base, const char* p_file_name) {
/* TODO: respect Windows separator? */
(void) snprintf(file_name_buf,
sizeof(file_name_buf),
#ifdef PLATFORM_WINDOWS
"%s\\%s",
#else
"%s/%s",
#endif
p_file_name_base,
p_file_name);
return strdup(&file_name_buf[0]);
Expand All @@ -319,6 +329,23 @@ struct util_file*
util_file_open(const char* p_file_name, int writeable, int create) {
struct util_file* p_file = util_file_try_open(p_file_name, writeable, create);
if (p_file == NULL) {
#ifdef PLATFORM_WINDOWS
char executable_path_buf[4096];
char* executable_dir;
char* executable_file_name;
char* joined_file_name;
GetModuleFileNameA(NULL, executable_path_buf, 4096);
util_file_name_split(&executable_dir, &executable_file_name, executable_path_buf);
joined_file_name = util_file_name_join(executable_dir, p_file_name);

p_file = util_file_try_open(joined_file_name, writeable, create);

util_free(joined_file_name);
util_free(executable_file_name);
util_free(executable_dir);
}
if (p_file == NULL) {
#endif
util_bail("couldn't open %s", p_file_name);
}
return p_file;
Expand Down