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authorIan Moffett <ian@osmora.org>2024-03-07 17:28:00 -0500
committerIan Moffett <ian@osmora.org>2024-03-07 17:28:32 -0500
commitbd5969fc876a10b18613302db7087ef3c40f18e1 (patch)
tree7c2b8619afe902abf99570df2873fbdf40a4d1a1 /lib/mlibc/sysdeps/linux/x86/crt-src
parenta95b38b1b92b172e6cc4e8e56a88a30cc65907b0 (diff)
lib: Add mlibc
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'lib/mlibc/sysdeps/linux/x86/crt-src')
-rw-r--r--lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S29
-rw-r--r--lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S18
-rw-r--r--lib/mlibc/sysdeps/linux/x86/crt-src/crti.S11
-rw-r--r--lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S9
4 files changed, 67 insertions, 0 deletions
diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S b/lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S
new file mode 100644
index 0000000..a62b127
--- /dev/null
+++ b/lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S
@@ -0,0 +1,29 @@
+.section .text
+
+.type __stack_chk_fail_local, %function
+.weak __stack_chk_fail_local
+__stack_chk_fail_local:
+ call __stack_chk_fail@plt
+
+.global _start
+
+.type _start, %function
+.type main, %function
+.type __mlibc_entry, %function
+
+.cfi_startproc
+_start:
+.cfi_undefined eip
+ xor %ebp, %ebp
+ mov %esp, %edi
+ call 1f
+
+1:
+ pop %ebx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
+ push main@GOT(%ebx)
+ push %edi
+ call __mlibc_entry@plt
+.cfi_endproc
+
+.section .note.GNU-stack,"",%progbits
diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S b/lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S
new file mode 100644
index 0000000..ed45da3
--- /dev/null
+++ b/lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S
@@ -0,0 +1,18 @@
+.section .text
+.global _start
+
+.type _start, %function
+.type main, %function
+.type __mlibc_entry, %function
+
+.cfi_startproc
+_start:
+.cfi_undefined eip
+ xor %ebp, %ebp
+ mov %esp, %ecx
+ push $main
+ push %ecx
+ call __mlibc_entry
+.cfi_endproc
+
+.section .note.GNU-stack,"",%progbits
diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/crti.S b/lib/mlibc/sysdeps/linux/x86/crt-src/crti.S
new file mode 100644
index 0000000..e232557
--- /dev/null
+++ b/lib/mlibc/sysdeps/linux/x86/crt-src/crti.S
@@ -0,0 +1,11 @@
+.section .init
+.global _init
+_init:
+ pushl %eax
+
+.section .fini
+.global _fini
+_fini:
+ pushl %eax
+
+.section .note.GNU-stack,"",%progbits
diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S b/lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S
new file mode 100644
index 0000000..d890289
--- /dev/null
+++ b/lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S
@@ -0,0 +1,9 @@
+.section .init
+ popl %eax
+ ret
+
+.section .fini
+ popl %eax
+ ret
+
+.section .note.GNU-stack,"",%progbits