syscalls2: add multi-abi support

syscalls

panda/plugins/syscalls2/generated-tpl/syscall_ppp_boilerplate_enter.tpl

@@ -1,7 +1,10 @@
-{%- for arch, syscalls in syscalls_arch|dictsort -%}
+{%- for arch, syscalls in syscalls_arch.items() -%}
 #if {{architectures[arch].get('boilerplate_target', architectures[arch].qemu_target)}}
 {%- for syscall_name, syscall in syscalls|dictsort %}
+#ifndef PPP_CB_BOILERPLATE_ENTER_ON_{{syscall.name|upper}}_ENTER
+#define PPP_CB_BOILERPLATE_ENTER_ON_{{syscall.name|upper}}_ENTER
 PPP_CB_BOILERPLATE(on_{{syscall.name}}_enter)
+#endif
 {%- endfor %}
 #endif
 {% endfor %}

panda/plugins/syscalls2/generated-tpl/syscall_ppp_boilerplate_return.tpl

@@ -1,7 +1,10 @@
-{%- for arch, syscalls in syscalls_arch|dictsort -%}
+{%- for arch, syscalls in syscalls_arch.items() -%}
 #if {{architectures[arch].get('boilerplate_target', architectures[arch].qemu_target)}}
 {%- for syscall_name, syscall in syscalls|dictsort %}
+#ifndef PPP_CB_BOILERPLATE_ENTER_ON_{{syscall.name|upper}}_RETURN
+#define PPP_CB_BOILERPLATE_ENTER_ON_{{syscall.name|upper}}_RETURN
 PPP_CB_BOILERPLATE(on_{{syscall.name}}_return)
+#endif
 {%- endfor %}
 #endif
 {% endfor %}

panda/plugins/syscalls2/generated-tpl/syscall_ppp_extern_enter.tpl

@@ -1,7 +1,10 @@
-{%- for arch, syscalls in syscalls_arch|dictsort -%}
-#if {{architectures[arch].qemu_target}}
+{%- for arch, syscalls in syscalls_arch.items() -%}
+#if {{architectures[arch].get('boilerplate_target', architectures[arch].qemu_target)}}
 {%- for syscall_name, syscall in syscalls|dictsort %}
+#ifndef PPP_CB_EXTERN_ON_{{syscall.name|upper}}_ENTER
+#define PPP_CB_EXTERN_ON_{{syscall.name|upper}}_ENTER
 PPP_CB_EXTERN(on_{{syscall.name}}_enter)
+#endif
 {%- endfor %}
 #endif
 {% endfor %}

panda/plugins/syscalls2/generated-tpl/syscall_ppp_extern_return.tpl

@@ -1,7 +1,10 @@
-{%- for arch, syscalls in syscalls_arch|dictsort -%}
-#if {{architectures[arch].qemu_target}}
+{%- for arch, syscalls in syscalls_arch.items() -%}
+#if {{architectures[arch].get('boilerplate_target', architectures[arch].qemu_target)}}
 {%- for syscall_name, syscall in syscalls|dictsort %}
+#ifndef PPP_CB_EXTERN_ON_{{syscall.name|upper}}_RETURN
+#define PPP_CB_EXTERN_ON_{{syscall.name|upper}}_RETURN
 PPP_CB_EXTERN(on_{{syscall.name}}_return)
+#endif
 {%- endfor %}
 #endif
 {% endfor %}

panda/plugins/syscalls2/generated-tpl/syscall_switch_enter.tpl

@@ -6,13 +6,19 @@
 #include "hooks/hooks_int_fns.h"
 #include "hw_proc_id/hw_proc_id_ext.h"
 
-extern const syscall_info_t *syscall_info;
-extern const syscall_meta_t *syscall_meta;
+extern bool load_info;
+#if {{ arch_conf.get('runner_target', arch_conf.qemu_target) }}
+static bool first_load = true;
+static syscall_info_t *info;
+static syscall_meta_t *meta;
+#endif
 
 extern "C" {
 #include "syscalls_ext_typedefs.h"
 #include "syscall_ppp_extern_enter.h"
 #include "syscall_ppp_extern_return.h"
+
+extern Profile profiles[];
 }
 
 /**
@@ -23,26 +29,36 @@ extern "C" {
  * arguments, return address) to prepare for handling the respective
  * system call return callbacks.
  */
-void syscall_enter_switch_{{os}}_{{arch}}(CPUState *cpu, target_ptr_t pc, int static_callno) {
+void syscall_enter_switch_{{os}}_{{arch}}(CPUState *cpu, int profile, target_ptr_t pc, int static_callno) {
 #if {{ arch_conf.get('runner_target', arch_conf.qemu_target) }}
 	CPUArchState *env = (CPUArchState*)cpu->env_ptr;
 	syscall_ctx_t ctx = {0};
+	ctx.profile = profile;
 	if (static_callno == -1) {
 	  ctx.no = {{arch_conf.rt_callno_reg}};
 	} else {
 	  ctx.no = static_callno;
 	}
 	ctx.asid = get_id(cpu);
-	ctx.retaddr = calc_retaddr(cpu, pc);
+	ctx.retaddr = calc_retaddr(cpu, &ctx, pc);
 	ctx.double_return = false;
 	bool panda_noreturn;	// true if PANDA should not track the return of this system call
 	const syscall_info_t *call = NULL;
 	syscall_info_t zero = {0};
-	if (syscall_meta != NULL && ctx.no <= syscall_meta->max_generic) {
+
+	// only try this once
+	if (first_load){
+		first_load = false;
+		if (load_info){
+			sysinfo_load_profile(ctx.profile, &info, &meta);
+		}
+	}
+
+	if (meta != NULL && ctx.no <= meta->max_generic) {
 	  // If the syscall_info object from dso_info_....c doesn't have an entry
 	  // for this syscall, we want to leave it as a NULL pointer
-	  if (memcmp(&syscall_info[ctx.no], &zero, sizeof(syscall_info_t)) != 0) {
-		call = &syscall_info[ctx.no];
+	  if (memcmp(&info[ctx.no], &zero, sizeof(syscall_info_t)) != 0) {
+		call = &info[ctx.no];
 	  }
 	}
 

panda/plugins/syscalls2/generated-tpl/syscall_switch_return.tpl

@@ -4,8 +4,12 @@
 #include "syscalls2.h"
 #include "syscalls2_info.h"
 
-extern const syscall_info_t *syscall_info;
-extern const syscall_meta_t *syscall_meta;
+extern bool load_info;
+#if {{ arch_conf.get('runner_target', arch_conf.qemu_target) }}
+static bool first_load = true;
+static syscall_info_t *info;
+static syscall_meta_t *meta;
+#endif
 
 extern "C" {
 #include "syscalls_ext_typedefs.h"
@@ -16,11 +20,18 @@ void syscall_return_switch_{{os}}_{{arch}}(CPUState *cpu, target_ptr_t pc, const
 #if {{ arch_conf.get('runner_target', arch_conf.qemu_target) }}
 	const syscall_info_t *call = NULL;
 	syscall_info_t zero = {0};
-	if (syscall_meta != NULL && ctx->no <= syscall_meta->max_generic) {
+	// only try this once
+	if (first_load){
+		first_load = false;
+		if (load_info){
+			sysinfo_load_profile(ctx->profile, &info, &meta);
+		}
+	}
+	if (meta != NULL && ctx->no <= meta->max_generic) {
 	  // If the syscall_info object from dso_info_....c doesn't have an entry
 	  // for this syscall, we want to leave it as a NULL pointer
-	  if (memcmp(&syscall_info[ctx->no], &zero, sizeof(syscall_info_t)) != 0) {
-		call = &syscall_info[ctx->no];
+	  if (memcmp(&info[ctx->no], &zero, sizeof(syscall_info_t)) != 0) {
+		call = &info[ctx->no];
 	  }
 	}
 	switch (ctx->no) {

panda/plugins/syscalls2/generated-tpl/syscalls_ext_typedefs.tpl

@@ -29,13 +29,14 @@ struct syscall_ctx {
     uint8_t args[GLOBAL_MAX_SYSCALL_ARGS]
                 [GLOBAL_MAX_SYSCALL_ARG_SIZE]; /**< arguments */
     bool double_return;
+    int profile;
 };
 typedef struct syscall_ctx syscall_ctx_t;
 
 /* Functions used to populate syscall_ctx_t structs. */
-target_long get_return_val(CPUState *env);
-target_ptr_t mask_retaddr_to_pc(target_ptr_t retaddr);
-target_ptr_t calc_retaddr(CPUState *env, target_ptr_t pc);
+target_long get_return_val(CPUState *env, int profile);
+target_ptr_t mask_retaddr_to_pc(target_ptr_t retaddr, syscall_ctx_t *);
+target_ptr_t calc_retaddr(CPUState *env, syscall_ctx_t*, target_ptr_t pc);
 uint32_t get_32(CPUState *env, syscall_ctx_t*, uint32_t argnum);
 int32_t get_s32(CPUState *env, syscall_ctx_t*, uint32_t argnum);
 uint64_t get_64(CPUState *env, syscall_ctx_t*, uint32_t argnum);
@@ -44,9 +45,10 @@ uint32_t get_return_32(CPUState *env, syscall_ctx_t*, uint32_t argnum);
 int32_t get_return_s32(CPUState *env, syscall_ctx_t*, uint32_t argnum);
 uint64_t get_return_64(CPUState *env, syscall_ctx_t*, uint32_t argnum);
 int64_t get_return_s64(CPUState *env, syscall_ctx_t*, uint32_t argnum);
+void sysinfo_load_profile(int profile, syscall_info_t **syscall_info, syscall_meta_t **syscall_meta);
 
-{% for arch, syscalls in syscalls_arch|dictsort -%}
-#if {{architectures[arch].qemu_target}}
+{% for arch, syscalls in syscalls_arch.items() -%}
+#if {{architectures[arch].get('typedef_guard', architectures[arch].get('qemu_target'))}}
 #include "syscalls_ext_typedefs_{{arch}}.h"
 #endif
 {% endfor %}

panda/plugins/syscalls2/generated-tpl/syscalls_ext_typedefs_arch.tpl

@@ -4,8 +4,14 @@
 // files in this directory that contain subsections like this one.
 
 {%- for syscall_name, syscall in syscalls|dictsort %}
+#ifndef TYPEDEFS_PPP_SYSCALL_ON_{{syscall.name|upper}}_ENTER
+#define TYPEDEFS_PPP_SYSCALL_ON_{{syscall.name|upper}}_ENTER 1
 PPP_CB_TYPEDEF(void, on_{{syscall.name}}_enter, {{syscall.cargs_signature}});
+#endif
+#ifndef TYPEDEFS_PPP_SYSCALL_ON_{{syscall.name|upper}}_RETURN
+#define TYPEDEFS_PPP_SYSCALL_ON_{{syscall.name|upper}}_RETURN 1
 PPP_CB_TYPEDEF(void, on_{{syscall.name}}_return, {{syscall.cargs_signature}});
+#endif
 {%- endfor %}
 
 // END_PYPANDA_NEEDS_THIS -- do not delete this comment!