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Adopt openjdk safefetch #246

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Merged
zhengyu123 merged 15 commits into from
Jul 18, 2025
Merged

Adopt openjdk safefetch #246

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f523bb2
v0
zhengyu123 Jul 14, 2025
35576dc
v1
zhengyu123 Jul 15, 2025
21f3287
v3
zhengyu123 Jul 15, 2025
fc66365
Fix the assembler gradle task
jbachorik Jul 16, 2025
7b48662
v5
zhengyu123 Jul 16, 2025
ab1b644
Fix safefetch handler
zhengyu123 Jul 16, 2025
bef7200
context_pc for aarch64 Linux
zhengyu123 Jul 16, 2025
aca18b7
fix
zhengyu123 Jul 16, 2025
8ac912e
Fix
zhengyu123 Jul 16, 2025
8d20ad6
fix
zhengyu123 Jul 16, 2025
33261bc
Use inline assembly
zhengyu123 Jul 17, 2025
ca9c47b
fix
zhengyu123 Jul 17, 2025
66c69ad
Cleanup
zhengyu123 Jul 17, 2025
ca37ca6
formatting
zhengyu123 Jul 17, 2025
1c299c4
add comment
zhengyu123 Jul 18, 2025
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v1
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@zhengyu123
zhengyu123 committed Jul 15, 2025
commit 35576dc5711efb6dd614f3c7a71d24b966a32d94
18 changes: 17 additions & 1 deletion ddprof-lib/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ plugins {
id 'java'
id 'maven-publish'
id 'signing'
id 'assembler'

id 'com.github.ben-manes.versions' version '0.27.0'
id 'de.undercouch.download' version '4.1.1'
Expand Down Expand Up @@ -606,7 +607,22 @@ tasks.register('javadocJar', Jar) {
}

tasks.register('asmTask', Exec) {
commandLine 'clang', '-D__aarch64__', 'src/main/asm/safefetch.S', '-o', 'build/obj/safefetch.o'
String reportedArch = System.getProperty('os.arch')
String arch
if (reportedArch == 'x86_64') {
arch = '-D__x86_64__'
} else {
arch = '-D__aarch64__'
}

String os
if (osIdentifier() == 'macos') {
os = '-D__APPLE__'
} else {
os = '-D__LINUX__'
}

commandLine 'gcc', arch, os, 'src/main/assembler/safefetch.S', '-c', 'build/obj/safefetch.o'
}

tasks.register('scanBuild', Exec) {
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19 changes: 15 additions & 4 deletions ddprof-lib/src/main/asm/safefetch.S → ddprof-lib/src/main/assembler/safefetch.S
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@@ -1,9 +1,20 @@
#ifdef __APPLE__
# macOS prefixes symbols with _
#define SYMBOL(s) _ ## s

#define DECLARE_FUNC(func) \
.globl SYMBOL(func) %% \
.private_extern SYMBOL(func) %% \
SYMBOL(func)
#else
#define SYMBOL(s) s

#define DECLARE_FUNC(func) \
.globl func %% \
.hidden func %% \
.type func, %function %% \
#define DECLARE_FUNC(func) \
.globl func ; \
.hidden func ; \
.type func, %function ; \
func
#endif // __APPLE__

#if defined(__x86_64__)
.text
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