yuzu/AppImageKit-checkrt
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Print debug logs when APPIMAGE_CHECKRT_DEBUG is set

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This commit is contained in:
Pablo Marcos Oltra 2018-01-06 10:27:32 +01:00
parent e1d82c8085
commit 73a1aa4132
3 changed files with 20 additions and 9 deletions
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13
checkrt.c
View file

@ -47,6 +47,7 @@
char *optional = NULL; char *optional = NULL;
char *optional_ld_preload = NULL; char *optional_ld_preload = NULL;
int debug_flag = 0;
void checkrt(char *usr_in_appdir) void checkrt(char *usr_in_appdir)
{ {
@ -62,6 +63,8 @@ void checkrt(char *usr_in_appdir)
char *gcc_bundle_lib = "./" GCCDIR "/libgcc_s.so.1"; char *gcc_bundle_lib = "./" GCCDIR "/libgcc_s.so.1";
const char *format = "tr '\\0' '\\n' < '%s' | grep -e '%s' | tail -n1"; const char *format = "tr '\\0' '\\n' < '%s' | grep -e '%s' | tail -n1";
debug_flag = getenv("APPIMAGE_CHECKRT_DEBUG") ? 1 : 0;
if (access(stdcxx_bundle_lib, F_OK) == 0) { if (access(stdcxx_bundle_lib, F_OK) == 0) {
f = popen("ldconfig -p | grep 'libstdc++.so.6 (" LIBC6_ARCH ")' | awk 'NR==1{print $NF}'", "r"); f = popen("ldconfig -p | grep 'libstdc++.so.6 (" LIBC6_ARCH ")' | awk 'NR==1{print $NF}'", "r");
ret = fscanf(f, "%s", stdcxx_sys_lib); (void)ret; ret = fscanf(f, "%s", stdcxx_sys_lib); (void)ret;
@ -72,8 +75,8 @@ void checkrt(char *usr_in_appdir)
SCANLIB(stdcxx_bundle_lib, stdcxx_bundle_sym, "^GLIBCXX_3\\.4"); SCANLIB(stdcxx_bundle_lib, stdcxx_bundle_sym, "^GLIBCXX_3\\.4");
stdcxx_sys_ver = atoi(stdcxx_sys_sym+12); stdcxx_sys_ver = atoi(stdcxx_sys_sym+12);
stdcxx_bundle_ver = atoi(stdcxx_bundle_sym+12); stdcxx_bundle_ver = atoi(stdcxx_bundle_sym+12);
//printf("%s ==> %s (%d)\n", stdcxx_sys_lib, stdcxx_sys_sym, stdcxx_sys_ver); DEBUG("%s ==> %s (%d)\n", stdcxx_sys_lib, stdcxx_sys_sym, stdcxx_sys_ver);
//printf("%s ==> %s (%d)\n\n", stdcxx_bundle_lib, stdcxx_bundle_sym, stdcxx_bundle_ver); DEBUG("%s ==> %s (%d)\n\n", stdcxx_bundle_lib, stdcxx_bundle_sym, stdcxx_bundle_ver);
} }
} }
@ -87,8 +90,8 @@ void checkrt(char *usr_in_appdir)
SCANLIB(gcc_bundle_lib, gcc_bundle_sym, "^GCC_[0-9]\\.[0-9]"); SCANLIB(gcc_bundle_lib, gcc_bundle_sym, "^GCC_[0-9]\\.[0-9]");
gcc_sys_ver = atoi(gcc_sys_sym+4) * 100 + atoi(gcc_sys_sym+6) * 10 + atoi(gcc_sys_sym+8); gcc_sys_ver = atoi(gcc_sys_sym+4) * 100 + atoi(gcc_sys_sym+6) * 10 + atoi(gcc_sys_sym+8);
gcc_bundle_ver = atoi(gcc_bundle_sym+4) * 100 + atoi(gcc_bundle_sym+6) * 10 + atoi(gcc_bundle_sym+8); gcc_bundle_ver = atoi(gcc_bundle_sym+4) * 100 + atoi(gcc_bundle_sym+6) * 10 + atoi(gcc_bundle_sym+8);
//printf("%s ==> %s (%d)\n", gcc_sys_lib, gcc_sys_sym, gcc_sys_ver); DEBUG("%s ==> %s (%d)\n", gcc_sys_lib, gcc_sys_sym, gcc_sys_ver);
//printf("%s ==> %s (%d)\n\n", gcc_bundle_lib, gcc_bundle_sym, gcc_bundle_ver); DEBUG("%s ==> %s (%d)\n\n", gcc_bundle_lib, gcc_bundle_sym, gcc_bundle_ver);
} }
} }
@ -121,6 +124,6 @@ void checkrt(char *usr_in_appdir)
sprintf(optional, "%s", ""); sprintf(optional, "%s", "");
} }
//printf("optional: %s\noptional_ld_preload: %s\n", optional, optional_ld_preload); DEBUG("optional: %s\noptional_ld_preload: %s\n", optional, optional_ld_preload);
} }

6
checkrt.h
View file

@ -1,3 +1,9 @@
extern char *optional; extern char *optional;
extern char *optional_ld_preload; extern char *optional_ld_preload;
extern void checkrt(char *usr_in_appdir); extern void checkrt(char *usr_in_appdir);
extern int debug_flag;
#define DEBUG(...) do { \
if (debug_flag) \
printf(__VA_ARGS__); \
} while (0)

10
exec.c
View file

@ -42,6 +42,8 @@ variable (e.g. "PATH"):
#define _GNU_SOURCE #define _GNU_SOURCE
#include "checkrt.h"
#include <unistd.h> #include <unistd.h>
#include <dlfcn.h> #include <dlfcn.h>
#include <stdio.h> #include <stdio.h>
@ -281,7 +283,7 @@ int execve(const char* filename, char* const argv[], char* const envp[]) {
old_execve = dlsym(RTLD_NEXT, "execve"); old_execve = dlsym(RTLD_NEXT, "execve");
int ret = old_execve(filename, argv, new_envp); int ret = old_execve(filename, argv, new_envp);
stringlist_free(new_envp); stringlist_free(new_envp);
//printf(">>> custom execve()!\n"); DEBUG(">>> custom execve()!\n");
return ret; return ret;
} }
@ -290,7 +292,7 @@ int execv(const char* filename, char* const argv[]) {
old_execve = dlsym(RTLD_NEXT, "execve"); old_execve = dlsym(RTLD_NEXT, "execve");
int ret = old_execve(filename, argv, new_envp); int ret = old_execve(filename, argv, new_envp);
stringlist_free(new_envp); stringlist_free(new_envp);
//printf(">>> custom execv()!\n"); DEBUG(">>> custom execv()!\n");
return ret; return ret;
} }
@ -300,7 +302,7 @@ int execvpe(const char* filename, char* const argv[], char* const envp[]) {
old_execvpe = dlsym(RTLD_NEXT, "execvpe"); old_execvpe = dlsym(RTLD_NEXT, "execvpe");
int ret = old_execvpe(filename, argv, new_envp); int ret = old_execvpe(filename, argv, new_envp);
stringlist_free(new_envp); stringlist_free(new_envp);
//printf(">>> custom execvpe()!\n"); DEBUG(">>> custom execvpe()!\n");
return ret; return ret;
} }
@ -310,6 +312,6 @@ int execvp(const char* filename, char* const argv[]) {
old_execvpe = dlsym(RTLD_NEXT, "execvpe"); old_execvpe = dlsym(RTLD_NEXT, "execvpe");
int ret = old_execvpe(filename, argv, new_envp); int ret = old_execvpe(filename, argv, new_envp);
stringlist_free(new_envp); stringlist_free(new_envp);
//printf(">>> custom execvp()!\n"); DEBUG(">>> custom execvp()!\n");
return ret; return ret;
} }