Results: Implement namespaced, type-safe results.

Because I was working on multiple things at once, this commit also:
- Adds wrappers for/linker flags to wrap CXX exceptions to make them
  abort. This saves ~0x8000 of memory in every system module.
- Broadly replaces lines of the pattern if (cond) { return ResultX; }
  with R_UNLESS(!cond, ResultX());.
- Reworks the R_TRY_CATCH macros (and the result macros in general).
This commit is contained in:
Michael Scire 2019-10-24 01:40:44 -07:00 committed by SciresM
parent 15773e4755
commit 4059dc6187
169 changed files with 2172 additions and 1868 deletions

View file

@ -27,21 +27,21 @@ namespace sts::ro::impl {
}
Result MapNro(u64 *out_base_address, Handle process_handle, u64 nro_heap_address, u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
map::MappedCodeMemory nro_mcm(ResultRoInternalError);
map::MappedCodeMemory bss_mcm(ResultRoInternalError);
map::MappedCodeMemory nro_mcm(ResultInternalError{});
map::MappedCodeMemory bss_mcm(ResultInternalError{});
u64 base_address;
/* Map the NRO, and map the BSS immediately after it. */
size_t i;
for (i = 0; i < MaxMapRetries; i++) {
map::MappedCodeMemory tmp_nro_mcm(ResultRoInternalError);
map::MappedCodeMemory tmp_nro_mcm(ResultInternalError{});
R_TRY(map::MapCodeMemoryInProcess(tmp_nro_mcm, process_handle, nro_heap_address, nro_heap_size));
base_address = tmp_nro_mcm.GetDstAddress();
if (bss_heap_size > 0) {
map::MappedCodeMemory tmp_bss_mcm(process_handle, base_address + nro_heap_size, bss_heap_address, bss_heap_size);
R_TRY_CATCH(tmp_bss_mcm.GetResult()) {
R_CATCH(ResultKernelInvalidMemoryState) {
R_CATCH(svc::ResultInvalidCurrentMemoryState) {
continue;
}
} R_END_TRY_CATCH;
@ -59,16 +59,14 @@ namespace sts::ro::impl {
nro_mcm = std::move(tmp_nro_mcm);
break;
}
if (i == MaxMapRetries) {
return ResultRoInsufficientAddressSpace;
}
R_UNLESS(i < MaxMapRetries, ResultOutOfAddressSpace());
/* Invalidation here actually prevents them from unmapping at scope exit. */
nro_mcm.Invalidate();
bss_mcm.Invalidate();
*out_base_address = base_address;
return ResultSuccess;
return ResultSuccess();
}
Result SetNroPerms(Handle process_handle, u64 base_address, u64 rx_size, u64 ro_size, u64 rw_size) {
@ -80,7 +78,7 @@ namespace sts::ro::impl {
R_TRY(svcSetProcessMemoryPermission(process_handle, base_address + ro_offset, ro_size, Perm_R ));
R_TRY(svcSetProcessMemoryPermission(process_handle, base_address + rw_offset, rw_size, Perm_Rw));
return ResultSuccess;
return ResultSuccess();
}
Result UnmapNro(Handle process_handle, u64 base_address, u64 nro_heap_address, u64 bss_heap_address, u64 bss_heap_size, u64 code_size, u64 rw_size) {
@ -97,7 +95,7 @@ namespace sts::ro::impl {
/* Finally, unmap .text + .rodata. */
R_TRY(svcUnmapProcessCodeMemory(process_handle, base_address, nro_heap_address, code_size));
return ResultSuccess;
return ResultSuccess();
}
}