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Set DYLD_TASK_INFO from system_kernel initialization (darlinghq/darling#304)
+69
-24
+7
-3
src/dyld/src/dyldInitialization.cpp
+7
-3
src/dyld/src/dyldInitialization.cpp
···
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}
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extern "C" void setup_elfcalls(const char** apple);
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extern "C" void mach_init();
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extern "C" void __guard_setup(const char* apple[]);
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···
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rebaseDyld(dyldsMachHeader, slide);
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}
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// allow dyld to use mach messaging
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mach_init();
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// kernel sets up env pointer to be just past end of agv array
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const char** envp = &argv[argc+1];
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···
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const char** apple = envp;
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while(*apple != NULL) { ++apple; }
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++apple;
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// Setup elfcalls for Darling
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setup_elfcalls(apple);
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// allow dyld to use mach messaging
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mach_init();
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// set up random value for stack canary
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__guard_setup(apple);
+7
-4
src/kernel/emulation/linux/mach/CMakeLists.txt
+7
-4
src/kernel/emulation/linux/mach/CMakeLists.txt
···
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project(mach_server_client)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -nostdinc")
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include_directories("${CMAKE_SOURCE_DIR}/platform-include")
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include_directories("${CMAKE_SOURCE_DIR}/src/libc/include")
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include_directories("${CMAKE_SOURCE_DIR}/src/kernel/emulation/linux/ext")
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include_directories("${CMAKE_SOURCE_DIR}/src/kernel/libsyscall/wrappers")
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include_directories(
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${CMAKE_SOURCE_DIR}/platform-include
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${CMAKE_SOURCE_DIR}/src/libc/include
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${CMAKE_SOURCE_DIR}/src/kernel/emulation/linux/ext
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${CMAKE_SOURCE_DIR}/src/kernel/libsyscall/wrappers
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${CMAKE_SOURCE_DIR}/src/startup
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)
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set(mach_server_client_sources
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mach_traps.c
+22
src/kernel/emulation/linux/mach/lkm.c
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src/kernel/emulation/linux/mach/lkm.c
···
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#include <unistd.h>
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#include <sys/resource.h>
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#include "../../libsyscall/wrappers/_libkernel_init.h"
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#include <elfcalls.h>
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extern struct elf_calls* _elfcalls;
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int driver_fd = -1;
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···
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extern int sys_dup2(int, int);
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extern int sys_fcntl(int, int, int);
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extern _libkernel_functions_t _libkernel_functions;
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static void setup_dyld_info(void);
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void mach_driver_init(void)
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{
···
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driver_fd = d;
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}
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// Setup TASK_DYLD_INFO (needed for debuggers)
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setup_dyld_info();
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}
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static void setup_dyld_info(void)
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{
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struct set_dyld_info_args dyld_info;
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uintptr_t loc;
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size_t len;
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_elfcalls->dyld_info(&loc, &len);
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dyld_info.all_images_address = loc;
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dyld_info.all_images_length = len;
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__real_ioctl(driver_fd, NR_set_dyld_info, &dyld_info);
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}
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__attribute__((visibility("default")))
+1
src/kernel/libsyscall/CMakeLists.txt
+1
src/kernel/libsyscall/CMakeLists.txt
+2
-17
src/kernel/libsyscall/wrappers/_libkernel_init.c
+2
-17
src/kernel/libsyscall/wrappers/_libkernel_init.c
···
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*/
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#include "_libkernel_init.h"
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#include <elfcalls.h>
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#include "elfcalls.h"
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extern int mach_init(void);
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__attribute__((visibility("default")))
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struct elf_calls* _elfcalls;
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extern int strncmp(const char *s1, const char *s2, __SIZE_TYPE__ n);
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extern unsigned long long __simple_atoi16(const char* str, const char** endp);
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/* dlsym() funcptr is for legacy support in exc_catcher */
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void* (*_dlsym)(void*, const char*) __attribute__((visibility("hidden")));
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···
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const char *apple[] __attribute__((unused)),
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const struct ProgramVars *vars __attribute__((unused)))
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{
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int i;
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_libkernel_functions = fns;
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if (fns->dlsym) {
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_dlsym = fns->dlsym;
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}
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for (i = 0; apple[i] != NULL; i++)
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{
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if (strncmp(apple[i], "elf_calls=", 10) == 0)
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{
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uintptr_t table = (uintptr_t) __simple_atoi16(apple[i] + 12, NULL);
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_elfcalls = (struct elf_calls*) table;
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}
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}
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setup_elfcalls(apple);
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mach_init();
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}
+23
src/kernel/libsyscall/wrappers/elfcalls.c
+23
src/kernel/libsyscall/wrappers/elfcalls.c
···
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#include <stdint.h>
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#include <stddef.h>
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#include <elfcalls.h>
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extern int strncmp(const char *s1, const char *s2, __SIZE_TYPE__ n);
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extern unsigned long long __simple_atoi16(const char* str, const char** endp);
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__attribute__((visibility("default")))
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struct elf_calls* _elfcalls;
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void setup_elfcalls(const char** apple)
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{
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int i;
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for (i = 0; apple[i] != NULL; i++)
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{
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if (strncmp(apple[i], "elf_calls=", 10) == 0)
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{
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uintptr_t table = (uintptr_t) __simple_atoi16(apple[i] + 12, NULL);
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_elfcalls = (struct elf_calls*) table;
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}
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}
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}
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