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[WRAPPER] Ported the steam vulkan hack to 64-bit (#3692)

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* [WRAPPER] Ported the steam vulkan hack to 64-bit

* fix build
This commit is contained in:
Yang Liu authored and GitHub committed 2026-03-21 20:12:50 +01:00
1 parent 690dfbb35e
commit 5d9e853496
1 file changed
+49 -2
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src/wrapped/wrappedlibc.c
+49 -2
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@@ -2708,7 +2708,54 @@ EXPORT int32_t my_execv(x64emu_t* emu, const char* path, char* const argv[])
int x86 = my_context->box86path?FileIsX86ELF(path):0;
int script = (my_context->bashpath && FileIsShell(path))?1:0;
printf_log(LOG_DEBUG, "execv(\"%s\", %p) is x64=%d x86=%d script=%d self=%d\n", path, argv, x64, x86, script, self);
#if 1
{
int n = 0;
int ret;
while (argv[n])
++n;
char** newargv = (char**)box_calloc(n + 1, sizeof(char*));
for (int i = 0; i <= n; ++i)
newargv[i] = argv[i];
if (n == 3 && !strcmp(newargv[0], "sh") && !strcmp(newargv[1], "-c") && strstr(newargv[2], "steamwebhelper.sh")) {
// For some reason, Steam UI on RISC-V/LoongArch does not have hardware accel.
// To workaround this, we insert `--enable-features=Vulkan` to the exec of steamwebhelper to force Vulkan.
// For cases where there is an existing `--enable-features=` string:
static const char* vulkanstr1 = "Vulkan,";
static const char* searchstr1 = "--enable-features=";
// For cases where there is no existing `--enable-features=` string:
static const char* vulkanstr2 = "--enable-features=Vulkan ";
static const char* searchstr2 = "--disable-features=";
size_t bufsize = strlen(newargv[2]) + strlen(vulkanstr1);
char* pos = strstr(newargv[2], searchstr1);
if (!pos) {
size_t bufsize = strlen(newargv[2]) + strlen(vulkanstr2);
pos = strstr(newargv[2], searchstr2);
if (!pos) goto do_exec;
char* newstr = (char*)box_calloc(bufsize + 1, 1);
size_t insertat = pos - newargv[2];
strncpy(newstr, newargv[2], insertat);
newstr[insertat] = '\0';
strcat(newstr, vulkanstr2);
strcat(newstr, newargv[2] + insertat);
newargv[2] = newstr;
goto do_exec;
}
char* newstr = (char*)box_calloc(bufsize + 1, 1);
size_t insertat = pos - newargv[2] + strlen(searchstr1);
strncpy(newstr, newargv[2], insertat);
newstr[insertat] = '\0';
strcat(newstr, vulkanstr1);
strcat(newstr, newargv[2] + insertat);
newargv[2] = newstr;
}
do_exec:
ret = execv(path, (void*)newargv);
box_free(newargv);
return ret;
}
#if 1
if (x64 || x86 || script || self) {
int skip_first = 0;
if(strlen(path)>=strlen("wine64-preloader") && strcmp(path+strlen(path)-strlen("wine64-preloader"), "wine64-preloader")==0)
@@ -2743,7 +2790,7 @@ EXPORT int32_t my_execv(x64emu_t* emu, const char* path, char* const argv[])
box_free(newargv);
return ret;
}
#endif
#endif
return execv(path, argv);
}