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| author | Srdjan Petrovic <spetrovic@google.com> | 2015-04-03 09:48:51 -0700 |
|---|---|---|
| committer | David Crawshaw <crawshaw@golang.org> | 2015-04-13 21:53:15 +0000 |
| commit | d1eee2cebf47816f53132d86ef6f3850fa22eefd (patch) | |
| tree | 439ef817ce65e657000f4ac4075aed3093e34e4a /src/runtime | |
| parent | 0d1c027bf35001d04e3ea4758f6e198542fe8961 (diff) | |
| download | go-d1eee2cebf47816f53132d86ef6f3850fa22eefd.tar.xz | |
runtime: shared library init support for android/arm.
Follows http://golang.org/cl/8454, a similar CL for arm architectures.
This CL involves android-specific changes, namely, synthesizing
argv/auxv, as android doesn't provide those to the init functions.
This code is based on crawshaw@ android code in golang.org/x/mobile.
Change-Id: I32364efbb2662e80270a99bd7dfb1d0421b5417d
Reviewed-on: https://go-review.googlesource.com/8457
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/rt0_android_arm.s | 24 | ||||
| -rw-r--r-- | src/runtime/rt0_linux_amd64.s | 4 | ||||
| -rw-r--r-- | src/runtime/rt0_linux_arm.s | 2 |
3 files changed, 25 insertions, 5 deletions
diff --git a/src/runtime/rt0_android_arm.s b/src/runtime/rt0_android_arm.s index ad5cf88baa..85712531d2 100644 --- a/src/runtime/rt0_android_arm.s +++ b/src/runtime/rt0_android_arm.s @@ -10,8 +10,26 @@ TEXT _rt0_arm_android(SB),NOSPLIT,$-4 MOVW $_rt0_arm_linux1(SB), R4 B (R4) -// This symbol is called when a shared library is loaded. +// When building with -buildmode=c-shared, this symbol is called when the shared +// library is loaded. TEXT _rt0_arm_android_lib(SB),NOSPLIT,$0 - // TODO(crawshaw): initialize runtime. - // At the moment this is done in mobile/app/android.c:init_go_runtime + MOVW $1, R0 // argc + MOVW $_rt0_arm_android_argv(SB), R1 // **argv + BL _rt0_arm_linux_lib(SB) RET + +DATA _rt0_arm_android_argv+0x00(SB)/4,$_rt0_arm_android_argv0(SB) +DATA _rt0_arm_android_argv+0x04(SB)/4,$0 +DATA _rt0_arm_android_argv+0x08(SB)/4,$0 +DATA _rt0_arm_android_argv+0x0C(SB)/4,$15 // AT_PLATFORM +DATA _rt0_arm_android_argv+0x10(SB)/4,$_rt0_arm_android_auxv0(SB) +DATA _rt0_arm_android_argv+0x14(SB)/4,$16 // AT_HWCAP +DATA _rt0_arm_android_argv+0x18(SB)/4,$0x2040 // HWCAP_VFP | HWCAP_VFPv3 +DATA _rt0_arm_android_argv+0x1C(SB)/4,$0 +GLOBL _rt0_arm_android_argv(SB),NOPTR,$0x20 + +DATA _rt0_arm_android_argv0(SB)/8, $"gojni" +GLOBL _rt0_arm_android_argv0(SB),RODATA,$8 + +DATA _rt0_arm_android_auxv0(SB)/4, $"v7l" +GLOBL _rt0_arm_android_auxv0(SB),RODATA,$4 diff --git a/src/runtime/rt0_linux_amd64.s b/src/runtime/rt0_linux_amd64.s index 0fdb393ee5..9010aba271 100644 --- a/src/runtime/rt0_linux_amd64.s +++ b/src/runtime/rt0_linux_amd64.s @@ -10,8 +10,8 @@ TEXT _rt0_amd64_linux(SB),NOSPLIT,$-8 MOVQ $main(SB), AX JMP AX -// When linking with -shared, this symbol is called when the shared library -// is loaded. +// When building with -buildmode=c-shared, this symbol is called when the shared +// library is loaded. TEXT _rt0_amd64_linux_lib(SB),NOSPLIT,$40 MOVQ DI, _rt0_amd64_linux_lib_argc<>(SB) MOVQ SI, _rt0_amd64_linux_lib_argv<>(SB) diff --git a/src/runtime/rt0_linux_arm.s b/src/runtime/rt0_linux_arm.s index cd79619a59..878a6dd194 100644 --- a/src/runtime/rt0_linux_arm.s +++ b/src/runtime/rt0_linux_arm.s @@ -10,6 +10,8 @@ TEXT _rt0_arm_linux(SB),NOSPLIT,$-4 MOVW $_rt0_arm_linux1(SB), R4 B (R4) +// When building with -buildmode=c-shared, this symbol is called when the shared +// library is loaded. TEXT _rt0_arm_linux_lib(SB),NOSPLIT,$40 // Preserve callee-save registers. Raspberry Pi's dlopen(), for example, // actually cares that R11 is preserved. |