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https://github.com/FEX-Emu/FEX.git
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Alyssa Rosenzweig
af21b8f3c7
It is not an external component, and it makes paths needlessly long. Ryan seemed amenable to this when we discussed on IRC earlier. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
#include <FEXCore/fextl/fmt.h>
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#include "Common/JitSymbols.h"
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#include <fcntl.h>
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#include <unistd.h>
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namespace FEXCore {
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JITSymbols::JITSymbols() {
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}
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JITSymbols::~JITSymbols() {
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if (fd != -1) {
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close(fd);
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}
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}
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void JITSymbols::InitFile() {
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// We can't use FILE here since we must be robust against forking processes closing our FD from under us.
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#ifdef __ANDROID__
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// Android simpleperf looks in /data/local/tmp instead of /tmp
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const auto PerfMap = fextl::fmt::format("/data/local/tmp/perf-{}.map", getpid());
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#else
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const auto PerfMap = fextl::fmt::format("/tmp/perf-{}.map", getpid());
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#endif
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fd = open(PerfMap.c_str(), O_CREAT | O_TRUNC | O_WRONLY | O_APPEND, 0644);
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}
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void JITSymbols::Register(const void *HostAddr, uint64_t GuestAddr, uint32_t CodeSize) {
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if (fd == -1) return;
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// Linux perf format is very straightforward
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// `<HostPtr> <Size> <Name>\n`
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const auto Buffer = fextl::fmt::format("{} {:x} JIT_0x{:x}_{}\n", HostAddr, CodeSize, GuestAddr, HostAddr);
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auto Result = write(fd, Buffer.c_str(), Buffer.size());
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if (Result == -1 && errno == EBADF) {
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fd = -1;
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}
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}
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void JITSymbols::Register(const void *HostAddr, uint32_t CodeSize, std::string_view Name) {
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if (fd == -1) return;
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// Linux perf format is very straightforward
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// `<HostPtr> <Size> <Name>\n`
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const auto Buffer = fextl::fmt::format("{} {:x} {}_{}\n", HostAddr, CodeSize, Name, HostAddr);
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auto Result = write(fd, Buffer.c_str(), Buffer.size());
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if (Result == -1 && errno == EBADF) {
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fd = -1;
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}
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}
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void JITSymbols::Register(const void *HostAddr, uint32_t CodeSize, std::string_view Name, uintptr_t Offset) {
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if (fd == -1) return;
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// Linux perf format is very straightforward
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// `<HostPtr> <Size> <Name>\n`
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const auto Buffer = fextl::fmt::format("{} {:x} {}+0x{:x} ({})\n", HostAddr, CodeSize, Name, Offset, HostAddr);
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auto Result = write(fd, Buffer.c_str(), Buffer.size());
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if (Result == -1 && errno == EBADF) {
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fd = -1;
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}
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}
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void JITSymbols::RegisterNamedRegion(const void *HostAddr, uint32_t CodeSize, std::string_view Name) {
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if (fd == -1) return;
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// Linux perf format is very straightforward
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// `<HostPtr> <Size> <Name>\n`
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const auto Buffer = fextl::fmt::format("{} {:x} {}\n", HostAddr, CodeSize, Name);
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auto Result = write(fd, Buffer.c_str(), Buffer.size());
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if (Result == -1 && errno == EBADF) {
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fd = -1;
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}
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}
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void JITSymbols::RegisterJITSpace(const void *HostAddr, uint32_t CodeSize) {
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if (fd == -1) return;
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// Linux perf format is very straightforward
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// `<HostPtr> <Size> <Name>\n`
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const auto Buffer = fextl::fmt::format("{} {:x} FEXJIT\n", HostAddr, CodeSize);
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auto Result = write(fd, Buffer.c_str(), Buffer.size());
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if (Result == -1 && errno == EBADF) {
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fd = -1;
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}
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}
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} // namespace FEXCore
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