diff --git a/src/test/ui/cfg/cfg-panic.rs b/src/test/ui/cfg/cfg-panic.rs
index dbb5932a9bb85..d2113e4f5ecc6 100644
--- a/src/test/ui/cfg/cfg-panic.rs
+++ b/src/test/ui/cfg/cfg-panic.rs
@@ -1,5 +1,6 @@
 // build-pass
 // compile-flags: -C panic=unwind
+// needs-unwind
 // ignore-emscripten no panic_unwind implementation
 // ignore-wasm32     no panic_unwind implementation
 // ignore-wasm64     no panic_unwind implementation
diff --git a/src/test/ui/intrinsics/intrinsic-alignment.rs b/src/test/ui/intrinsics/intrinsic-alignment.rs
index 592409ba89f9b..5a27ea8783a2f 100644
--- a/src/test/ui/intrinsics/intrinsic-alignment.rs
+++ b/src/test/ui/intrinsics/intrinsic-alignment.rs
@@ -14,6 +14,7 @@ mod rusti {
           target_os = "dragonfly",
           target_os = "emscripten",
           target_os = "freebsd",
+          target_os = "fuchsia",
           target_os = "linux",
           target_os = "macos",
           target_os = "netbsd",
diff --git a/src/test/ui/issues/issue-70093.rs b/src/test/ui/issues/issue-70093.rs
index 95ab86ebcb1f4..fbe68fb9379f8 100644
--- a/src/test/ui/issues/issue-70093.rs
+++ b/src/test/ui/issues/issue-70093.rs
@@ -1,6 +1,7 @@
 // run-pass
 // compile-flags: -Zlink-native-libraries=no -Cdefault-linker-libraries=yes
 // ignore-windows - this will probably only work on unixish systems
+// ignore-fuchsia - missing __libc_start_main for some reason (#84733)
 
 #[link(name = "some-random-non-existent-library", kind = "static")]
 extern "C" {}
diff --git a/src/test/ui/panic-handler/weak-lang-item.rs b/src/test/ui/panic-handler/weak-lang-item.rs
index 3fa3822831b52..df31e614cf809 100644
--- a/src/test/ui/panic-handler/weak-lang-item.rs
+++ b/src/test/ui/panic-handler/weak-lang-item.rs
@@ -1,6 +1,7 @@
 // aux-build:weak-lang-items.rs
 // error-pattern: `#[panic_handler]` function required, but not found
 // error-pattern: language item required, but not found: `eh_personality`
+// needs-unwind since it affects the error output
 // ignore-emscripten compiled with panic=abort, personality not required
 
 #![no_std]
diff --git a/src/test/ui/panic-handler/weak-lang-item.stderr b/src/test/ui/panic-handler/weak-lang-item.stderr
index 68e3e21df3e08..1f14b20e4514d 100644
--- a/src/test/ui/panic-handler/weak-lang-item.stderr
+++ b/src/test/ui/panic-handler/weak-lang-item.stderr
@@ -1,5 +1,5 @@
 error[E0259]: the name `core` is defined multiple times
-  --> $DIR/weak-lang-item.rs:8:1
+  --> $DIR/weak-lang-item.rs:9:1
    |
 LL | extern crate core;
    | ^^^^^^^^^^^^^^^^^^ `core` reimported here
diff --git a/src/test/ui/panic-runtime/abort-link-to-unwind-dylib.rs b/src/test/ui/panic-runtime/abort-link-to-unwind-dylib.rs
index f8368ff69008f..58a90a592c4c0 100644
--- a/src/test/ui/panic-runtime/abort-link-to-unwind-dylib.rs
+++ b/src/test/ui/panic-runtime/abort-link-to-unwind-dylib.rs
@@ -1,5 +1,6 @@
 // build-fail
 // compile-flags:-C panic=abort -C prefer-dynamic
+// needs-unwind
 // ignore-musl - no dylibs here
 // ignore-emscripten
 // ignore-sgx no dynamic lib support
diff --git a/src/test/ui/panic-runtime/lto-unwind.rs b/src/test/ui/panic-runtime/lto-unwind.rs
index 6f39b76526b64..24048ebe008fa 100644
--- a/src/test/ui/panic-runtime/lto-unwind.rs
+++ b/src/test/ui/panic-runtime/lto-unwind.rs
@@ -2,6 +2,7 @@
 #![allow(unused_variables)]
 
 // compile-flags:-C lto -C panic=unwind
+// needs-unwind
 // no-prefer-dynamic
 // ignore-emscripten no processes
 // ignore-sgx no processes
diff --git a/src/test/ui/panic-runtime/transitive-link-a-bunch.rs b/src/test/ui/panic-runtime/transitive-link-a-bunch.rs
index 1848c986e3615..622535a75aff6 100644
--- a/src/test/ui/panic-runtime/transitive-link-a-bunch.rs
+++ b/src/test/ui/panic-runtime/transitive-link-a-bunch.rs
@@ -1,4 +1,5 @@
 // build-fail
+// needs-unwind
 // aux-build:panic-runtime-unwind.rs
 // aux-build:panic-runtime-abort.rs
 // aux-build:wants-panic-runtime-unwind.rs
diff --git a/src/test/ui/panic-runtime/want-unwind-got-abort.rs b/src/test/ui/panic-runtime/want-unwind-got-abort.rs
index 894a5eb38b8e7..c48caaf079077 100644
--- a/src/test/ui/panic-runtime/want-unwind-got-abort.rs
+++ b/src/test/ui/panic-runtime/want-unwind-got-abort.rs
@@ -1,4 +1,5 @@
 // build-fail
+// needs-unwind
 // error-pattern:is incompatible with this crate's strategy of `unwind`
 // aux-build:panic-runtime-abort.rs
 // aux-build:panic-runtime-lang-items.rs
diff --git a/src/test/ui/panic-runtime/want-unwind-got-abort2.rs b/src/test/ui/panic-runtime/want-unwind-got-abort2.rs
index 5955075bae581..7a2e48e2f10a9 100644
--- a/src/test/ui/panic-runtime/want-unwind-got-abort2.rs
+++ b/src/test/ui/panic-runtime/want-unwind-got-abort2.rs
@@ -1,4 +1,5 @@
 // build-fail
+// needs-unwind
 // error-pattern:is incompatible with this crate's strategy of `unwind`
 // aux-build:panic-runtime-abort.rs
 // aux-build:wants-panic-runtime-abort.rs
diff --git a/src/test/ui/structs-enums/rec-align-u64.rs b/src/test/ui/structs-enums/rec-align-u64.rs
index 69544b1c06036..cc6412e271a13 100644
--- a/src/test/ui/structs-enums/rec-align-u64.rs
+++ b/src/test/ui/structs-enums/rec-align-u64.rs
@@ -35,6 +35,7 @@ struct Outer {
           target_os = "dragonfly",
           target_os = "emscripten",
           target_os = "freebsd",
+          target_os = "fuchsia",
           target_os = "linux",
           target_os = "macos",
           target_os = "netbsd",
diff --git a/src/test/ui/test-panic-abort-disabled.rs b/src/test/ui/test-panic-abort-disabled.rs
index 4adb161d9ee4b..874dbdb42c33c 100644
--- a/src/test/ui/test-panic-abort-disabled.rs
+++ b/src/test/ui/test-panic-abort-disabled.rs
@@ -1,6 +1,6 @@
 // error-pattern:building tests with panic=abort is not supported
 // no-prefer-dynamic
-// compile-flags: --test -Cpanic=abort
+// compile-flags: --test -Cpanic=abort -Zpanic-abort-tests=no
 // run-flags: --test-threads=1
 
 // ignore-wasm no panic or subprocess support
diff --git a/src/test/ui/unwind-no-uwtable.rs b/src/test/ui/unwind-no-uwtable.rs
index f249d3f457474..0440cf488e8bb 100644
--- a/src/test/ui/unwind-no-uwtable.rs
+++ b/src/test/ui/unwind-no-uwtable.rs
@@ -1,4 +1,5 @@
 // run-pass
+// needs-unwind
 // ignore-windows target requires uwtable
 // ignore-wasm32-bare no proper panic=unwind support
 // compile-flags: -C panic=unwind -C force-unwind-tables=n
diff --git a/src/test/ui/x86stdcall.rs b/src/test/ui/x86stdcall.rs
index e1136807b3c43..2bf4cfc500320 100644
--- a/src/test/ui/x86stdcall.rs
+++ b/src/test/ui/x86stdcall.rs
@@ -27,6 +27,7 @@ pub fn main() {
           target_os = "dragonfly",
           target_os = "emscripten",
           target_os = "freebsd",
+          target_os = "fuchsia",
           target_os = "linux",
           target_os = "macos",
           target_os = "netbsd",
diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs
index 2a14d8a39990a..408c0b8da0b21 100644
--- a/src/tools/compiletest/src/common.rs
+++ b/src/tools/compiletest/src/common.rs
@@ -171,6 +171,12 @@ impl fmt::Display for Debugger {
     }
 }
 
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum PanicStrategy {
+    Unwind,
+    Abort,
+}
+
 /// Configuration for compiletest
 #[derive(Debug, Clone)]
 pub struct Config {
@@ -265,6 +271,10 @@ pub struct Config {
     /// Flags to pass to the compiler when building for the target
     pub target_rustcflags: Option<String>,
 
+    /// What panic strategy the target is built with.  Unwind supports Abort, but
+    /// not vice versa.
+    pub target_panic: PanicStrategy,
+
     /// Target system to be tested
     pub target: String,
 
diff --git a/src/tools/compiletest/src/header.rs b/src/tools/compiletest/src/header.rs
index 56527420c0d08..983934d129a2e 100644
--- a/src/tools/compiletest/src/header.rs
+++ b/src/tools/compiletest/src/header.rs
@@ -7,7 +7,7 @@ use std::path::{Path, PathBuf};
 
 use tracing::*;
 
-use crate::common::{CompareMode, Config, Debugger, FailMode, Mode, PassMode};
+use crate::common::{CompareMode, Config, Debugger, FailMode, Mode, PanicStrategy, PassMode};
 use crate::util;
 use crate::{extract_cdb_version, extract_gdb_version};
 
@@ -115,6 +115,12 @@ impl EarlyProps {
                     props.ignore = true;
                 }
 
+                if config.target_panic == PanicStrategy::Abort
+                    && config.parse_name_directive(ln, "needs-unwind")
+                {
+                    props.ignore = true;
+                }
+
                 if config.target == "wasm32-unknown-unknown" && config.parse_check_run_results(ln) {
                     props.ignore = true;
                 }
diff --git a/src/tools/compiletest/src/main.rs b/src/tools/compiletest/src/main.rs
index f42f9fb237a50..d53e19f2908e4 100644
--- a/src/tools/compiletest/src/main.rs
+++ b/src/tools/compiletest/src/main.rs
@@ -5,7 +5,9 @@
 
 extern crate test;
 
-use crate::common::{expected_output_path, output_base_dir, output_relative_path, UI_EXTENSIONS};
+use crate::common::{
+    expected_output_path, output_base_dir, output_relative_path, PanicStrategy, UI_EXTENSIONS,
+};
 use crate::common::{CompareMode, Config, Debugger, Mode, PassMode, Pretty, TestPaths};
 use crate::util::logv;
 use getopts::Options;
@@ -97,8 +99,9 @@ pub fn parse_config(args: Vec<String>) -> Config {
              (eg. emulator, valgrind)",
             "PROGRAM",
         )
-        .optopt("", "host-rustcflags", "flags to pass to rustc for host", "FLAGS")
-        .optopt("", "target-rustcflags", "flags to pass to rustc for target", "FLAGS")
+        .optmulti("", "host-rustcflags", "flags to pass to rustc for host", "FLAGS")
+        .optmulti("", "target-rustcflags", "flags to pass to rustc for target", "FLAGS")
+        .optopt("", "target-panic", "what panic strategy the target supports", "unwind | abort")
         .optflag("", "verbose", "run tests verbosely, showing all output")
         .optflag(
             "",
@@ -243,8 +246,13 @@ pub fn parse_config(args: Vec<String>) -> Config {
         }),
         logfile: matches.opt_str("logfile").map(|s| PathBuf::from(&s)),
         runtool: matches.opt_str("runtool"),
-        host_rustcflags: matches.opt_str("host-rustcflags"),
-        target_rustcflags: matches.opt_str("target-rustcflags"),
+        host_rustcflags: Some(matches.opt_strs("host-rustcflags").join(" ")),
+        target_rustcflags: Some(matches.opt_strs("target-rustcflags").join(" ")),
+        target_panic: match matches.opt_str("target-panic").as_deref() {
+            Some("unwind") | None => PanicStrategy::Unwind,
+            Some("abort") => PanicStrategy::Abort,
+            _ => panic!("unknown `--target-panic` option `{}` given", mode),
+        },
         target,
         host: opt_str2(matches.opt_str("host")),
         cdb,